View Filing Data

Print Document View Excel Document

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Jun. 30, 2013	Jul. 31, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2013
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Trading Symbol	ENS
Entity Registrant Name	ENERSYS
Entity Central Index Key	0001289308
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		47,609,323

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2013	Mar. 31, 2013
Current assets:
Cash and cash equivalents	$ 240,058	$ 249,348
Accounts receivable, net of allowance for doubtful accounts: June 30, 2013 - $8,787; March 31, 2013 - $9,292	467,625	448,068
Total	332,917	353,941
Deferred taxes	38,250	37,786
Prepaid and other current assets	64,803	63,819
Total current assets	1,143,653	1,152,962
Property, plant, and equipment, net	348,842	350,126
Goodwill	344,701	345,499
Other intangible assets, net	102,657	103,701
Other assets	34,672	35,579
Total assets	1,974,525	1,987,867
Current liabilities:
Short-term debt	20,687	22,702
Current portion of long-term debt and capital lease obligations	274	311
Accounts payable	241,220	249,359
Accrued expenses	181,471	195,187
Total current liabilities	443,652	467,559
Long-term debt and capital lease obligations	157,277	155,476
Deferred taxes	87,770	88,036
Other liabilities	90,674	90,418
Total liabilities	779,373	801,489
Commitments and contingencies
Redeemable noncontrolling interests	9,838	11,095
Equity:
Common Stock, $0.01 par value per share, 135,000,000 shares authorized; 53,256,758 shares issued and 47,685,093 outstanding at June 30, 2013; 52,970,281 shares issued and 47,840,204 shares outstanding at March 31, 2013	532	529
Additional paid-in capital	501,328	501,646
Treasury stock, at cost, 5,571,665 shares held as of June 30, 2013; 5,130,077 shares held as of March 31, 2013	(122,769)	(100,776)
Retained earnings	762,080	727,347
Accumulated other comprehensive income	38,235	40,655
Total EnerSys stockholders' equity	1,179,406	1,169,401
Noncontrolling interests	5,908	5,882
Total equity	1,185,314	1,175,283
Total liabilities and equity	$ 1,974,525	$ 1,987,867

Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2013	Mar. 31, 2013
Accounts receivable, allowance for doubtful accounts	$ 8,787	$ 9,292
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	135,000,000	135,000,000
Common Stock, shares issued	53,256,758	52,970,281
Treasury stock, shares	5,571,665	5,130,077

Consolidated Condensed Statements of Income - USD ($)
$ in Thousands

3 Months Ended

Jun. 30, 2013

Jul. 01, 2012

Net sales

$ 597,297

$ 593,910

Cost of goods sold

457,158

445,604

Gross profit

140,139

148,306

Operating expenses

77,110

77,681

Restructuring charges

421

370

Operating earnings

^[1]

62,608

70,255

Interest expense

4,271

4,732

Other (income) expense, net

2,358

1,250

Earnings before income taxes

55,979

64,273

Income tax expense

15,562

18,709

Net earnings

40,417

45,564

Net losses attributable to noncontrolling interests

(430)

(240)

Net earnings attributable to EnerSys stockholders

$ 40,847

$ 45,804

Net earnings per common share attributable to EnerSys stockholders:

Basic earnings per common share attributable to EnerSys stockholders

$ 0.85

$ 0.96

Diluted earnings per common share attributable to EnerSys stockholders

0.83

0.95

Common Stock, Dividends, Per Share, Cash Paid

$ 0.125

$ 0.00

Weighted average shares of common stock outstanding:

Basic

47,868,982

47,901,203

Diluted

49,304,944

48,426,991

[1]	The Company does not allocate interest expense or other (income) expense to the reportable segments.

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Net earnings	$ 40,417	$ 45,564
Other comprehensive income (loss):
Net unrealized gain (loss) on derivative instruments, net of tax	(1,488)	(5,346)
Pension funded status adjustment, net of tax	201	215
Foreign currency translation adjustments	(1,934)	(31,975)
Total other comprehensive loss, net of tax	(3,221)	(37,106)
Total comprehensive income	37,196	8,458
Comprehensive loss attributable to noncontrolling interests	(1,231)	(764)
Comprehensive income attributable to EnerSys stockholders	$ 38,427	$ 9,222

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 121
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 46
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=18733213&loc=SL4591552-111686

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=18733213&loc=SL4591551-111686

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A1, A4, A5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Cash flows from operating activities
Net earnings	$ 40,417	$ 45,564
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	12,607	12,450
Derivatives not designated in hedging relationships:
Net (gains) losses	226	129
Cash settlements	(208)	(730)
Provision for doubtful accounts	(217)	(131)
Deferred income taxes	153	(707)
Non-cash interest expense	2,235	2,139
Stock-based compensation	3,023	3,373
Loss (gain) on disposal of property, plant, and equipment	(328)	(108)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(21,395)	(22,841)
Inventory	13,080	(190)
Prepaid expenses and other current assets	(1,247)	3,141
Other assets	156	(1,394)
Accounts payable	(6,020)	(12,471)
Accrued expenses	(7,896)	(8,619)
Other liabilities	(194)	4,610
Net cash provided by operating activities	34,392	24,215
Cash flows from investing activities
Capital expenditures	(12,828)	(16,060)
Proceeds from disposal of property, plant, and equipment	1,128	14
Net cash used in investing activities	(11,700)	(16,046)
Cash flows from financing activities
Net increase in short-term debt	(478)	(4,095)
Proceeds from revolving credit borrowings	0	122,650
Repayments of revolving credit borrowings	0	(107,150)
Proceeds from long-term debt - other	0	5,959
Capital lease obligations	(83)	(195)
Net effect from exercising of stock options and vesting of equity awards	(7,952)	(870)
Excess tax benefits from exercise of stock options and vesting of equity awards	4,614	2,159
Purchase of treasury stock	(21,993)	0
Payments of Dividends	(5,965)	0
Net cash used in financing activities	(31,857)	18,458
Effect of exchange rate changes on cash and cash equivalents	(125)	(6,406)
Net increase in cash and cash equivalents	(9,290)	20,221
Cash and cash equivalents at beginning of period	249,348	160,490
Cash and cash equivalents at end of period	$ 240,058	$ 180,711

Basis of Presentation	3 Months Ended
Basis of Presentation	Jun. 30, 2013
Text Block [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim unaudited consolidated condensed financial statements of EnerSys (the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all the information and notes required for complete financial statements. In the opinion of management, the unaudited consolidated condensed financial statements include all normal recurring adjustments considered necessary for the fair presentation of the financial position, results of operations, and cash flows for the interim periods presented. The financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in the Company’s 2013 Annual Report on Form 10-K (SEC File No. 001-32253), which was filed on May 28, 2013. The Company reports interim financial information for 13-week periods, except for the first quarter, which always begins on April 1, and the fourth quarter, which always ends on March 31. The four quarters in fiscal 2014 end on June 30, 2013, September 29, 2013, December 29, 2013, and March 31, 2014, respectively. The four quarters in fiscal 2013 ended on July 1, 2012, September 30, 2012, December 30, 2012, and March 31, 2013, respectively. The consolidated condensed financial statements include the accounts of the Company and its wholly-owned subsidiaries and any partially-owned subsidiaries that the Company has the ability to control. All intercompany transactions and balances have been eliminated in consolidation. The Company also consolidates certain subsidiaries in which the noncontrolling interest party has within its control the right to require the Company to redeem all or a portion of its interest in the subsidiary. The redeemable noncontrolling interests are reported at their estimated redemption value. Any adjustment to the redemption value impacts retained earnings but does not impact net income or comprehensive income. Noncontrolling interests which are redeemable only upon future events, the occurrence of which is not currently probable, are recorded at carrying value. Recently Adopted Accounting Pronouncements In February 2013, the Financial Accounting Standards Board (“FASB”) finalized the disclosure requirements on how entities should present financial information about reclassification adjustments from accumulated other comprehensive income in ASU No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income”. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. If a component is not required to be reclassified to net income in its entirety, companies would instead cross-reference to the related footnote for additional information. The Company adopted ASU No. 2013-02 as of April 1, 2013, and the adoption did not have a material impact on the Company's consolidated condensed financial statements.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2134480

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2209116

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2122150

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2197480

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=7880789&loc=SL6228881-111685

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 15
-URI http://asc.fasb.org/subtopic&trid=2122524

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7668296&loc=d3e288-107754

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 915
-SubTopic 235
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6472506&loc=d3e38932-110933

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 94-6
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 2-6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 4, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS140-4/FIN46(R)-8
-Paragraph 8, C1, C7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Inventories

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Inventories

Inventories, net consist of:



	June 30, 2013		March 31, 2013
Raw materials	$	90,164	$	88,787
Work-in-process	106,562		113,119
Finished goods	136,191		152,035
Total	$	332,917	$	353,941

Fair Value of Financial Instruments

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company uses the following valuation techniques to measure fair value for its financial assets and financial liabilities:



Level 1		Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2		Inputs are quoted prices for similar assets or liabilities in an active market, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable and market-corroborated inputs which are derived principally from or corroborated by observable market data.

Level 3		Inputs are derived from valuation techniques in which one or more significant inputs or value drivers are unobservable.

The following tables represent the financial assets and (liabilities), measured at fair value on a recurring basis as of June 30, 2013 and March 31, 2013 and the basis for that measurement:



	Total Fair Value Measurement June 30, 2013			Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Lead forward contracts	$	585		—		$	585		$	—
Foreign currency forward contracts	(637		)	—		(637		)	—
Total derivatives	$	(52	)	$	—	$	(52	)	$	—



	Total Fair Value Measurement March 31, 2013			Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Interest rate swap agreements	$	(654	)	$	—	$	(654	)	$	—
Lead forward contracts	(2,832		)	—		(2,832		)	—
Foreign currency forward contracts	(11		)	—		(11		)	—
Total derivatives	$	(3,497	)	$	—	$	(3,497	)	$	—

The fair values of interest rate swap agreements are based on observable prices as quoted for receiving the variable three month LIBOR and paying fixed interest rates and, therefore, were classified as Level 2. At June 30, 2013, the Company had no interest rate swap agreements.

The fair values of lead forward contracts are calculated using observable prices for lead as quoted on the London Metal Exchange (“LME”) and, therefore, were classified as Level 2.

The fair values for foreign currency forward contracts are based upon current quoted market prices and are classified as Level 2 based on the nature of the underlying market in which these derivatives are traded.

Financial Instruments

The fair values of the Company’s cash and cash equivalents, accounts receivable and accounts payable approximate carrying value due to their short maturities.

The fair value of the Company’s short-term debt approximates its carrying value, as it is variable rate debt and the terms are comparable to market terms as of the balance sheet dates and is classified as Level 2.

The Company’s senior unsecured 3.375% convertible notes (“Convertible Notes”), with a face value of $172,500, were issued when the Company’s stock price was trading at $30.19 per share. On June 30, 2013, the Company’s stock price closed at $49.04 per share. The Convertible Notes have a conversion option at $40.60 per share. The fair value of these notes represent the trading values based upon quoted market prices and are classified as Level 2. The Convertible Notes were trading at 130% of face value on June 30, 2013, and 126% of face value on March 31, 2013.

See Note 8 to the Consolidated Financial Statements included in the Company’s 2013 Annual Report on Form 10-K for more details.

The carrying amounts and estimated fair values of the Company’s derivatives and Convertible Notes at June 30, 2013 and March 31, 2013 were as follows:



	June 30, 2013						March 31, 2013
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Financial assets:
Derivatives ⁽¹⁾	$	586		$	586		$	241		$	241
Financial liabilities:
Convertible Notes	$	157,117	⁽²⁾	$	224,250	⁽³⁾	$	155,273	⁽²⁾	$	217,350	⁽³⁾
Derivatives ⁽¹⁾	638			638			3,738			3,738


(1)	Represents interest rate swap agreements, lead and foreign currency hedges (see Note 4 for asset and liability positions of the interest rate swap agreements, lead and foreign currency hedges at June 30, 2013 and March 31, 2013).


(2)	The carrying amounts of the Convertible Notes at June 30, 2013 and March 31, 2013 represent the $172,500 principal value, less the unamortized debt discount (see Note 9).


(3)	The fair value amounts of the Convertible Notes at June 30, 2013 and March 31, 2013 represent the trading values of the Convertible Notes with a principal value of $172,500.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13504-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Derivative Financial Instruments

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Derivative Financial Instruments

The Company utilizes derivative instruments to reduce its exposure to fluctuations in commodity prices, foreign exchange rates and interest rates, under established procedures and controls. The Company does not enter into derivative contracts for speculative purposes. The Company’s agreements are with creditworthy financial institutions and the Company anticipates performance by counterparties to these contracts and therefore no material loss is expected.

Derivatives in Cash Flow Hedging Relationships

Lead Hedge Forward Contracts

The Company enters into lead hedge forward contracts to fix the price for a portion of its lead purchases. Management considers the lead hedge forward contracts to be effective against changes in the cash flows of the underlying lead purchases. The vast majority of such contracts are for a period not extending beyond one year and the notional amounts at June 30, 2013 and March 31, 2013 were 90.9 million pounds and 56.3 million pounds, respectively.

Foreign Currency Forward Contracts

The Company purchases lead and other commodities in certain countries where the foreign currency exposure is different from the functional currency of that country. The Company uses foreign currency forward contracts to hedge a portion of the Company’s foreign currency exposures for lead as well as other foreign currency exposures so that gains and losses on these contracts offset changes in the underlying foreign currency denominated exposures. The vast majority of such contracts are for a period not extending beyond one year. As of June 30, 2013 and March 31, 2013, the Company had entered into a total of $71,227 and $51,366, respectively, of such contracts.

In the coming twelve months, the Company anticipates that $3,624 of pretax loss relating to lead and foreign currency forward contracts will be reclassified from accumulated other comprehensive income (“AOCI”) as part of cost of goods sold. This amount represents the current unrealized impact of hedging lead and foreign exchange rates, which will change as market rates change in the future, and will ultimately be realized in the income statement as an offset to the corresponding actual changes in lead costs to be realized in connection with the variable lead cost and foreign exchange rates being hedged.

Derivatives not Designated in Hedging Relationships

Interest Rate Swap Agreements

As of March 31, 2013, the Company maintained interest rate swap agreements that converted $65,000 of variable-rate debt to a fixed-rate basis, utilizing the three-month LIBOR, as a floating rate reference. These agreements expired during the current quarter ended June 30, 2013, and the Company had no interest rate swap agreements as of June 30, 2013. The Company recorded expense relating to changes in the fair value of these agreements in the consolidated condensed statements of income, within other (income) expense, net of $0 and $15 during the first quarter of fiscal 2014 and 2013, respectively.

Foreign Currency Forward Contracts

The Company also enters into foreign currency forward contracts to economically hedge foreign currency fluctuations on intercompany loans and foreign currency denominated receivables. These are not designated as hedging instruments and changes in fair value of these instruments are recorded directly in the consolidated statements of income. As of June 30, 2013 and March 31, 2013, the notional amount of these contracts was $10,722 and $21,749, respectively. The Company recorded expense in the consolidated condensed statements of income within other (income) expense, net of $226 and $114 during the first quarter of fiscal 2014 and 2013, respectively.

Presented below in tabular form is information on the location and amounts of derivative fair values in the consolidated condensed balance sheets and derivative gains and losses in the consolidated condensed statements of income:

Fair Value of Derivative Instruments

June 30, 2013 and March 31, 2013



	Derivatives and Hedging Activities Designated as Cash Flow Hedges				Derivatives and Hedging Activities Not Designated as Hedging Instruments
	June 30, 2013		March 31, 2013		June 30, 2013		March 31, 2013
Prepaid and other current assets
Foreign currency forward contracts	$	—	$	—	$	—	$	241
Lead hedge forward contracts	559		—		—		—
Other assets
Lead hedge forward contracts	26		—		—		—
Foreign currency forward contracts	1		—		—		—
Total assets	$	586	$	—	$	—	$	241
Accrued expenses
Interest rate swap agreements	$	—	$	—	$	—	$	654
Lead hedge forward contracts	—		2,832		—		—
Foreign currency forward contracts	207		252		431		—
Total liabilities	$	207	$	3,084	$	431	$	654

The Effect of Derivative Instruments on the Consolidated Condensed Statement of Income

For the quarter ended June 30, 2013



Derivatives Designated as Cash Flow Hedges	Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)			Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
Lead hedge contracts	$	(303	)	Cost of goods sold	$	2,046
Foreign currency forward contracts	(606		)	Cost of goods sold	(591		)
Total	$	(909	)		$	1,455



Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Gain (Loss)
Foreign currency forward contracts	Other (income) expense, net	(226		)
Total		$	(226	)

The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income

For the quarter ended July 1, 2012



Derivatives Designated as Cash Flow Hedges	Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)			Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
Lead hedge contracts	$	(6,413	)	Cost of goods sold	$	1,498
Foreign currency forward contracts	707			Cost of goods sold	1,278
Total	$	(5,706	)		$	2,776



Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Gain (Loss)
Interest rate swap contracts	Other (income) expense, net	$	(15	)
Foreign currency forward contracts	Other (income) expense, net	(114		)
Total		$	(129	)

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624177-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80784-113994

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41641-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5708775-113959

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41635-113959

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5708773-113959

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4E
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624181-113959

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes	3 Months Ended
Income Taxes	Jun. 30, 2013
Text Block [Abstract]
Income Taxes	Income Taxes The Company’s income tax provisions consist of federal, state and foreign income taxes. The tax provisions for the first quarters of fiscal 2014 and 2013 were based on the estimated effective tax rates applicable for the full years ending March 31, 2014 and March 31, 2013, respectively, after giving effect to items specifically related to the interim periods. The effective income tax rates for the first quarters of fiscal 2014 and 2013 were 27.8% and 29.1%, respectively. The rate decrease in the first quarter of fiscal 2014 compared to the prior year quarter is primarily due to changes in the mix of earnings among tax jurisdictions and a reduction in income taxes related to a legal entity reorganization of certain foreign subsidiaries.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

+ Details

Warranties

3 Months Ended

Jun. 30, 2013

Disclosure Analysis Of Changes In Liability For Product Warranties [Abstract]

Warranties

The Company provides for estimated product warranty expenses when the related products are sold, with related liabilities included within accrued expenses and other liabilities. Because warranty estimates are forecasts that are based on the best available information, primarily historical claims experience, claims costs may differ from amounts provided. An analysis of changes in the liability for product warranties is as follows:



	Quarter ended
	June 30, 2013			July 1, 2012
Balance at beginning of period	$	42,591		$	42,067
Current period provisions	5,343			5,596
Costs incurred	(5,753		)	(4,495		)
Foreign exchange and other	21			(680		)
Balance at end of period	$	42,202		$	42,488

Commitments, Contingencies and Litigation	3 Months Ended
Commitments, Contingencies and Litigation	Jun. 30, 2013
Text Block [Abstract]
Commitments, Contingencies and Litigation	Commitments, Contingencies and Litigation Litigation and Other Legal Matters The Company is involved in litigation incidental to the conduct of its business, the results of which, in the opinion of management, are not likely to be material to the Company’s financial position, results of operations, or cash flows. See Note 18 to the Consolidated Financial Statements included in the Company’s 2013 Annual Report on Form 10-K. There have been no significant changes since March 31, 2013. Environmental Issues As a result of its operations, the Company is subject to various federal, state, and local, as well as international environmental laws and regulations and is exposed to the costs and risks of handling, processing, storing, transporting, and disposing of hazardous substances, especially lead and acid. The Company’s operations are also subject to federal, state, local and international occupational safety and health regulations, including laws and regulations relating to exposure to lead in the workplace. See Note 18 to the Consolidated Financial Statements included in the Company’s 2013 Annual Report on Form 10-K for a full description of environmental issues. There have been no significant changes since March 31, 2013. Lead Contracts To stabilize its costs, the Company has entered into contracts with financial institutions to fix the price of lead. The vast majority of such contracts are for a period not extending beyond one year. Under these contracts, at June 30, 2013 and March 31, 2013, the Company has hedged the price to purchase 90.9 million pounds and 56.3 million pounds of lead, respectively, for a total purchase price of $83,996 and $56,601, respectively. Foreign Currency Forward Contracts The Company quantifies and monitors its global foreign currency exposures. On a selective basis, the Company will enter into foreign currency forward and option contracts to reduce the volatility from currency movements that affect the Company. The vast majority of such contracts are for a period not extending beyond one year. The Company’s largest exposure is from the purchase and conversion of U.S. dollar based lead costs into local currencies in EMEA. Additionally, the Company has currency exposures from intercompany and third party trade transactions. To hedge these exposures, the Company has entered into a total of $81,949 and $73,115, respectively, of foreign currency forward contracts with financial institutions as of June 30, 2013 and March 31, 2013. Interest Rate Swap Agreements The Company is exposed to changes in variable U.S. interest rates on borrowings under its U.S. credit agreement. On a selective basis, from time to time, the Company enters into interest rate swap agreements to reduce the negative impact that increases in interest rates could have on its outstanding variable rate debt. These agreements expired during the current quarter ended June 30, 2013 and the Company had no interest rate swap agreements at June 30, 2013 as well as no borrowings under its U.S. credit agreement. At March 31, 2013, such agreements converted $65,000 of variable-rate debt to a fixed-rate basis, utilizing the three-month LIBOR, as a floating rate reference. Fluctuations in LIBOR and fixed rates affect both the Company’s net financial investment position and the amount of cash to be paid or received under these agreements.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Restructuring Plans

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Restructuring Plans

During fiscal 2012, the Company announced restructuring plans related to its operations in EMEA, primarily consisting of the transfer of manufacturing of select products between certain of its manufacturing operations and restructuring of its selling, general and administrative operations, which is expected to result in the reduction of approximately 85 employees upon completion. The Company estimates that the total charges for these actions will amount to approximately $3,600, primarily from cash expenses for employee severance-related payments. The Company recorded restructuring charges of $3,545 through fiscal 2013, with no additional charges during the first quarter of fiscal 2014. The Company incurred $3,346 of costs against the accrual through fiscal 2013, with no additional costs incurred against the accrual during the first quarter of fiscal 2014. As of June 30, 2013, the reserve balance associated with these actions is $188. The Company does not expect to be committed to significant additional restructuring charges in fiscal 2014 related to these actions and expects to complete the program in fiscal 2014.

During fiscal 2013, the Company announced a further restructuring related to improving the efficiency of its manufacturing operations in EMEA. The Company estimates that the total charges for these actions will amount to approximately $8,100, primarily from cash expenses for employee severance-related payments and non-cash expenses associated with the write-off of certain fixed assets and inventory. The Company estimates that these actions will result in the reduction of approximately 130 employees upon completion. During fiscal 2013, the Company recorded restructuring charges of $3,998, consisting of non-cash charges of $1,399 related to the write-off of fixed assets and inventory, along with cash charges related to employee severance and other charges of $2,599. The Company recorded an additional $421 in charges during the first quarter of fiscal 2014. During fiscal 2013, the Company incurred $952 of costs against the accrual, with an additional $1,073 of costs incurred during the first quarter of fiscal 2014. As of June 30, 2013, the reserve balance associated with these actions is $954. The Company expects to be committed to an additional $2,700 of restructuring charges in fiscal 2014 related to these actions, and expects to complete the program during fiscal 2015.

During fiscal 2013, the Company announced a restructuring related to the closure of its manufacturing facility located in Chaoan, People's Republic of China, pursuant to which the Company will transfer the manufacturing at that location to its other facilities in the People's Republic of China, to improve operational efficiencies. The Company estimates that the total charges related to this action will amount to $3,400. During fiscal 2013, the Company recorded restructuring charges of $2,691, consisting of non-cash charges of $2,290 related to the write-off of fixed assets and inventory, along with cash charges related to employee severance and other charges of $401. During the first quarter of fiscal 2014, no additional restructuring charges were accrued. During fiscal 2013, the Company incurred $221 in costs against the accrual, with an additional $92 of costs incurred during the first quarter of fiscal 2014. As of June 30, 2013, the reserve balance associated with this action is $88. The Company expects to be committed to an additional $700 of restructuring related to these actions and expects to complete the restructuring during fiscal 2014.

A roll-forward of the restructuring reserve is as follows:



	Employee Severance			Other			Total
Balance as of March 31, 2013	$	1,738		$	221		$	1,959
Accrued	421			—			421
Costs incurred	(1,057		)	(108		)	(1,165		)
Foreign currency impact and other	15			—			15
Balance as of June 30, 2013	$	1,117		$	113		$	1,230

- Definition

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References + Details

Debt

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Debt

The following summarizes the Company’s long-term debt including capital lease obligations:



	June 30, 2013		March 31, 2013
3.375% Convertible Notes, net of discount, due 2038	$	157,117	$	155,273
Capital lease obligations and other	434		514
	157,551		155,787
Less current portion	274		311
Total long-term debt and capital lease obligations	$	157,277	$	155,476

The Convertible Notes are represented by a liability component, which is reported herein as long-term debt, net of discount and an equity component representing the convertible feature, which is included in additional paid-in capital in EnerSys stockholders’ equity. See Note 8 to the Consolidated Financial Statements included in the Company’s 2013 Annual Report on Form 10-K for early redemption features.

The following represents the principal amount of the liability component, the unamortized discount, and the net carrying amount of the Convertible Notes as of June 30, 2013 and March 31, 2013:



	June 30, 2013			March 31, 2013
Principal	$	172,500		$	172,500
Unamortized discount	(15,383		)	(17,227		)
Net carrying amount	$	157,117		$	155,273
Carrying amount of equity component	$	29,850		$	29,850

As of June 30, 2013, the remaining discount will be amortized over a period of 23 months. The conversion price of the $172,500 in aggregate principal amount of the Convertible Notes is $40.60 per share and the number of shares on which the aggregate consideration is to be delivered upon conversion is 4,248,761.

The effective interest rate on the liability component of the Convertible Notes was 8.50%. The amount of interest cost recognized for the amortization of the discount on the liability component of the Convertible Notes was $1,844 and $1,696, respectively, during the quarters ended June 30, 2013 and July 1, 2012.

Short-Term Debt

As of June 30, 2013 and March 31, 2013, the Company had $20,687 and $22,702, respectively, of short-term borrowings from banks. The weighted-average interest rates on these borrowings were approximately 10% and 9% for the quarters ended June 30, 2013 and March 31, 2013.

Available Lines of Credit

As of June 30, 2013 and March 31, 2013, the Company had available and undrawn, under all its lines of credit, $475,289 and $469,123, respectively. Included in the June 30, 2013 and March 31, 2013 amounts are $126,539 and $120,373, respectively, of uncommitted lines of credit.

As of June 30, 2013 and March 31, 2013, the Company had $8,124 and $11,854, respectively, of standby letters of credit.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Retirement Plans

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Retirement Plans

The following tables present the components of the Company’s net periodic benefit cost related to its defined benefit pension plans:



	United States Plans						International Plans
	Quarter Ended						Quarter Ended
	June 30, 2013			July 1, 2012			June 30, 2013			July 1, 2012
Service cost	$	91		$	81		$	200		$	177
Interest cost	156			164			580			594
Expected return on plan assets	(199		)	(189		)	(511		)	(464		)
Amortization and deferral	133			100			104			52
Net periodic benefit cost	$	181		$	156		$	373		$	359

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation	3 Months Ended
Stock-Based Compensation	Jun. 30, 2013
Text Block [Abstract]
Stock-Based Compensation	Stock-Based Compensation As of June 30, 2013, the Company maintains the EnerSys 2010 Equity Incentive Plan (“2010 EIP”). The 2010 EIP reserved 3,177,477 shares of common stock for the grant of various types of equity awards including nonqualified stock options, restricted stock, restricted stock units, market share units and other forms of equity-based compensation. The Company recognized equity-based compensation expense associated with its equity incentive plans of $3,023 for the first quarter of fiscal 2014 and $3,373 for the first quarter of fiscal 2013. In the first quarter of fiscal 2014, the Company granted to non-employee directors 1,626 restricted stock units, pursuant to the EnerSys Deferred Compensation Plan for non-employee directors. In the first quarter of fiscal 2014, the Company granted to management and other key employees 150,629 restricted stock units that vest 25% each year over four years from the date of grant, and 189,438 market share units that vest three years from the date of grant. Common stock activity during the first quarter of fiscal 2014 included the exercise of 5,523 options and the vesting of 216,432 restricted stock units and 222,123 market share units. As of June 30, 2013, there were 72,463 non-qualified stock options, 537,121 restricted stock units and 666,737 market share units outstanding.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stockholders' Equity

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Stockholders' Equity

Stockholders’ Equity and Noncontrolling Interests

Common Stock

The following demonstrates the change in the number of shares of Common Stock outstanding during the first quarter of fiscal 2014:



Shares outstanding as of March 31, 2013	47,840,204
Purchase of treasury stock	(441,588	)
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	286,477

Shares outstanding as of June 30, 2013	47,685,093

Treasury Stock

During the first quarter of fiscal 2014, the Company purchased 441,588 shares of its common stock for $21,993. At June 30, 2013 and March 31, 2013, the Company held 5,571,665 and 5,130,077 shares as treasury stock.

Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income, net of tax, are as follows:



	March 31, 2013			Before Reclassifications			Amounts Reclassified from AOCI			June 30, 2013
Pension funded status adjustment	$	(13,169	)	$	—		$	201		$	(12,968	)
Net unrealized loss on derivative instruments	(832		)	(573		)	(915		)	(2,320		)
Foreign currency translation adjustment	54,656			(1,133		)	—			53,523
Accumulated other comprehensive income	$	40,655		$	(1,706	)	$	(714	)	$	38,235

Reclassification out of Accumulated Other Comprehensive Income during the first quarter ended June 30, 2013:



Components of AOCI	Amounts Reclassified from AOCI			Location of (Gain) Loss Recognized on Income Statement
Derivatives in Cash Flow Hedging Relationships:
Net unrealized (gain) on derivative instruments	$	(1,455	)
Tax	540
Net unrealized (gain) on derivative instruments, net of tax	$	(915	)	Cost of goods sold

Defined benefit pension costs:
Prior service costs and deferrals	$	237
Tax	(36		)
Net periodic benefit cost, net of tax	$	201		Net periodic benefit cost, included in Cost of goods sold, Operating expenses - See Note 10

The following demonstrates the change in equity attributable to the Company and nonredeemable noncontrolling interests during the first quarter ended June 30, 2013:



	Equity attributable to EnerSys stockholders			Nonredeemable Noncontrolling Interests			Total Equity
Balance as of March 31, 2013	$	1,169,401		$	5,882		$	1,175,283
Total comprehensive income:
Net earnings	40,847			50			40,897
Net unrealized loss on derivative instruments, net of tax	(1,488		)	—			(1,488		)
Pension funded status adjustment, net of tax	201			—			201
Foreign currency translation adjustment	(1,133		)	(24		)	(1,157		)
Total other comprehensive loss, net of tax	(2,420		)	(24		)	(2,444		)
Total comprehensive income	38,427			26			38,453
Other changes in equity:
Purchase of treasury stock	(21,993		)	—			(21,993		)
Cash dividends - common stock ($0.125 per share)	(5,965		)	—			(5,965		)
Other, including activity related to equity awards	(464		)	—			(464		)
Balance as of June 30, 2013	$	1,179,406		$	5,908		$	1,185,314

The following demonstrates the change in redeemable noncontrolling interests during the first quarter ended June 30, 2013:



	Redeemable Noncontrolling Interests
Balance as of March 31, 2013	$	11,095
Net losses attributable to noncontrolling interests	(480		)
Foreign currency translation adjustment	(777		)
Balance as of June 30, 2013	$	9,838

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(d),(e))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 4.E)
-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29-31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Section B
-Paragraph 7, 11A
-Chapter 1
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph d
-Article 4

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 20: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 23: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

+ Details

Earnings Per Share

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Earnings Per Share

The following table sets forth the reconciliation from basic to diluted weighted-average number of common shares outstanding and the calculations of net earnings per common share attributable to the Company's stockholders.



	Quarter ended
	June 30, 2013		July 1, 2012
Net earnings attributable to EnerSys stockholders	$	40,847	$	45,804
Weighted-average number of common shares outstanding:
Basic	47,868,982		47,901,203
Dilutive effect of:
Common shares from exercise and lapse of equity awards, net of shares assumed reacquired	829,509		525,788
Convertible Notes	606,453		—
Diluted weighted-average number of common shares outstanding	49,304,944		48,426,991
Basic earnings per common share attributable to EnerSys stockholders	$	0.85	$	0.96
Diluted earnings per common share attributable to EnerSys stockholders	$	0.83	$	0.95
Anti-dilutive equity awards not included in diluted weighted-average common shares	15,632		107,217

The aggregate number of common shares that the Company could be obligated to issue upon conversion of its Convertible Notes that the Company sold in May 2008 is 4,248,761. It is the Company’s current intent to settle the principal amount of any conversions in cash, and any additional conversion consideration in cash, shares of the Company’s common stock or a combination of cash and shares. During the first quarter of fiscal 2014, the average price of our common stock at $47.36 per share exceeded the conversion price of $40.60 per share on the Convertible Notes. 606,453 shares relating to the conversion premium ($47.36-$40.60) on the Convertible Notes were included in the diluted earnings per share using the treasury stock method. No contingent shares were included in diluted shares outstanding during the first quarter of fiscal 2013, as the specified conversion price exceeded the average market price of the Company’s common stock, and the inclusion of contingent shares would have been anti-dilutive.

Business Segments

3 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Business Segments

The Company has three reportable business segments based on geographic regions, defined as follows:


•	Americas, which includes North and South America, with segment headquarters in Reading, Pennsylvania, USA;


•	EMEA, which includes Europe, the Middle East and Africa, with segment headquarters in Zurich, Switzerland; and


•	Asia, which includes Asia, Australia and Oceania, with segment headquarters in Singapore.

Summarized financial information related to the Company's reportable segments for the first quarters ended June 30, 2013 and July 1, 2012, is shown below:



	Quarter ended
	June 30, 2013			July 1, 2012
Net sales by segment to unaffiliated customers
EMEA	$	230,967		$	237,051
Americas	315,623			288,924
Asia	50,707			67,935
Total net sales	$	597,297		$	593,910
Net sales by product line
Reserve power	$	292,819		$	289,294
Motive power	304,478			304,616
Total net sales	$	597,297		$	593,910
Intersegment sales
EMEA	$	18,297		$	22,162
Americas	10,093			10,554
Asia	7,711			6,359
Total intersegment sales ⁽¹⁾	$	36,101		$	39,075
Operating earnings by segment
EMEA	$	16,083		$	17,220
Americas	41,725			44,514
Asia	5,221			8,891
Restructuring charges - EMEA	(421		)	(370		)
Total operating earnings ⁽²⁾	$	62,608		$	70,255


⁽¹⁾	Intersegment sales are presented on a cost-plus basis which takes into consideration the effect of transfer prices between legal entities.


⁽²⁾	The Company does not allocate interest expense or other (income) expense to the reportable segments.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 29
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Subsequent Events	3 Months Ended
Subsequent Events	Jun. 30, 2013
Text Block [Abstract]
Subsequent Events	Subsequent Events On August 1, 2013, the Company announced the payment of a quarterly cash dividend of $0.125 per share of common stock to be paid on September 27, 2013, to stockholders of record as of September 13, 2013. On August 2, 2013, the Company amended its $350,000 2011 Credit Facility to extend its term from March 31, 2016 to September 30, 2018, and increased the Company's flexibility to undertake acquisitions, pay cash dividends, invest in joint ventures and repurchase its common stock.

Inventories (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Summary Of Inventories

Inventories, net consist of:



	June 30, 2013		March 31, 2013
Raw materials	$	90,164	$	88,787
Work-in-process	106,562		113,119
Finished goods	136,191		152,035
Total	$	332,917	$	353,941

Fair Value of Financial Instruments (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Financial Assets And (Liabilities), Measured At Fair Value On A Recurring Basis

The following tables represent the financial assets and (liabilities), measured at fair value on a recurring basis as of June 30, 2013 and March 31, 2013 and the basis for that measurement:



	Total Fair Value Measurement June 30, 2013			Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Lead forward contracts	$	585		—		$	585		$	—
Foreign currency forward contracts	(637		)	—		(637		)	—
Total derivatives	$	(52	)	$	—	$	(52	)	$	—



	Total Fair Value Measurement March 31, 2013			Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
Interest rate swap agreements	$	(654	)	$	—	$	(654	)	$	—
Lead forward contracts	(2,832		)	—		(2,832		)	—
Foreign currency forward contracts	(11		)	—		(11		)	—
Total derivatives	$	(3,497	)	$	—	$	(3,497	)	$	—

Carrying Amounts And Estimated Fair Values Of Company's Financial Instruments

The carrying amounts and estimated fair values of the Company’s derivatives and Convertible Notes at June 30, 2013 and March 31, 2013 were as follows:



	June 30, 2013						March 31, 2013
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Financial assets:
Derivatives ⁽¹⁾	$	586		$	586		$	241		$	241
Financial liabilities:
Convertible Notes	$	157,117	⁽²⁾	$	224,250	⁽³⁾	$	155,273	⁽²⁾	$	217,350	⁽³⁾
Derivatives ⁽¹⁾	638			638			3,738			3,738

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13467-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 19
-Subparagraph a, b, c(1), d(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 14
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15
-Subparagraph b-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 18
-Subparagraph c(2), d, e, f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a, c(1), c(2), c(3), d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 6
-Footnote 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 33
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Derivative Financial Instruments (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Fair Value of Derivative Instruments

June 30, 2013 and March 31, 2013



	Derivatives and Hedging Activities Designated as Cash Flow Hedges				Derivatives and Hedging Activities Not Designated as Hedging Instruments
	June 30, 2013		March 31, 2013		June 30, 2013		March 31, 2013
Prepaid and other current assets
Foreign currency forward contracts	$	—	$	—	$	—	$	241
Lead hedge forward contracts	559		—		—		—
Other assets
Lead hedge forward contracts	26		—		—		—
Foreign currency forward contracts	1		—		—		—
Total assets	$	586	$	—	$	—	$	241
Accrued expenses
Interest rate swap agreements	$	—	$	—	$	—	$	654
Lead hedge forward contracts	—		2,832		—		—
Foreign currency forward contracts	207		252		431		—
Total liabilities	$	207	$	3,084	$	431	$	654

The Effect Of Derivative Instruments On Consolidated Condensed Statements Of Income

The Effect of Derivative Instruments on the Consolidated Condensed Statement of Income

For the quarter ended June 30, 2013



Derivatives Designated as Cash Flow Hedges	Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)			Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
Lead hedge contracts	$	(303	)	Cost of goods sold	$	2,046
Foreign currency forward contracts	(606		)	Cost of goods sold	(591		)
Total	$	(909	)		$	1,455



Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Gain (Loss)
Foreign currency forward contracts	Other (income) expense, net	(226		)
Total		$	(226	)

The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income

For the quarter ended July 1, 2012



Derivatives Designated as Cash Flow Hedges	Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)			Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
Lead hedge contracts	$	(6,413	)	Cost of goods sold	$	1,498
Foreign currency forward contracts	707			Cost of goods sold	1,278
Total	$	(5,706	)		$	2,776



Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income on Derivative	Gain (Loss)
Interest rate swap contracts	Other (income) expense, net	$	(15	)
Foreign currency forward contracts	Other (income) expense, net	(114		)
Total		$	(129	)

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41641-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41678-113959

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(n)(2))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959

+ Details

Warranties (Tables)

3 Months Ended

Jun. 30, 2013

Disclosure Analysis Of Changes In Liability For Product Warranties [Abstract]

Analysis Of Changes In Liability For Product Warranties

An analysis of changes in the liability for product warranties is as follows:



	Quarter ended
	June 30, 2013			July 1, 2012
Balance at beginning of period	$	42,591		$	42,067
Current period provisions	5,343			5,596
Costs incurred	(5,753		)	(4,495		)
Foreign exchange and other	21			(680		)
Balance at end of period	$	42,202		$	42,488

Restructuring Plans (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Reconciliation of Restructuring Reserve

A roll-forward of the restructuring reserve is as follows:



	Employee Severance			Other			Total
Balance as of March 31, 2013	$	1,738		$	221		$	1,959
Accrued	421			—			421
Costs incurred	(1,057		)	(108		)	(1,165		)
Foreign currency impact and other	15			—			15
Balance as of June 30, 2013	$	1,117		$	113		$	1,230

Debt (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Long-Term Debt And Capital Lease Obligations

The following summarizes the Company’s long-term debt including capital lease obligations:



	June 30, 2013		March 31, 2013
3.375% Convertible Notes, net of discount, due 2038	$	157,117	$	155,273
Capital lease obligations and other	434		514
	157,551		155,787
Less current portion	274		311
Total long-term debt and capital lease obligations	$	157,277	$	155,476

Components Of Net Carrying Amount Of Convertible Notes

The following represents the principal amount of the liability component, the unamortized discount, and the net carrying amount of the Convertible Notes as of June 30, 2013 and March 31, 2013:



	June 30, 2013			March 31, 2013
Principal	$	172,500		$	172,500
Unamortized discount	(15,383		)	(17,227		)
Net carrying amount	$	157,117		$	155,273
Carrying amount of equity component	$	29,850		$	29,850

Retirement Plans (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Net Periodic Benefit Cost Related To Defined Benefit Pension Plans

The following tables present the components of the Company’s net periodic benefit cost related to its defined benefit pension plans:



	United States Plans						International Plans
	Quarter Ended						Quarter Ended
	June 30, 2013			July 1, 2012			June 30, 2013			July 1, 2012
Service cost	$	91		$	81		$	200		$	177
Interest cost	156			164			580			594
Expected return on plan assets	(199		)	(189		)	(511		)	(464		)
Amortization and deferral	133			100			104			52
Net periodic benefit cost	$	181		$	156		$	373		$	359

- Definition

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2439-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2417-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2410-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=21916443&loc=d3e4179-114921

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 4, 7, 16, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stockholders' Equity (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Change In Number Of Shares Of Common Stock Outstanding

The following demonstrates the change in the number of shares of Common Stock outstanding during the first quarter of fiscal 2014:



Shares outstanding as of March 31, 2013	47,840,204
Purchase of treasury stock	(441,588	)
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	286,477

Shares outstanding as of June 30, 2013	47,685,093

Components Of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income, net of tax, are as follows:



	March 31, 2013			Before Reclassifications			Amounts Reclassified from AOCI			June 30, 2013
Pension funded status adjustment	$	(13,169	)	$	—		$	201		$	(12,968	)
Net unrealized loss on derivative instruments	(832		)	(573		)	(915		)	(2,320		)
Foreign currency translation adjustment	54,656			(1,133		)	—			53,523
Accumulated other comprehensive income	$	40,655		$	(1,706	)	$	(714	)	$	38,235

Noncontrolling Interest Disclosure [Text Block]

The following demonstrates the change in equity attributable to the Company and nonredeemable noncontrolling interests during the first quarter ended June 30, 2013:



	Equity attributable to EnerSys stockholders			Nonredeemable Noncontrolling Interests			Total Equity
Balance as of March 31, 2013	$	1,169,401		$	5,882		$	1,175,283
Total comprehensive income:
Net earnings	40,847			50			40,897
Net unrealized loss on derivative instruments, net of tax	(1,488		)	—			(1,488		)
Pension funded status adjustment, net of tax	201			—			201
Foreign currency translation adjustment	(1,133		)	(24		)	(1,157		)
Total other comprehensive loss, net of tax	(2,420		)	(24		)	(2,444		)
Total comprehensive income	38,427			26			38,453
Other changes in equity:
Purchase of treasury stock	(21,993		)	—			(21,993		)
Cash dividends - common stock ($0.125 per share)	(5,965		)	—			(5,965		)
Other, including activity related to equity awards	(464		)	—			(464		)
Balance as of June 30, 2013	$	1,179,406		$	5,908		$	1,185,314

- Definition

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

+ References + Details

Earnings Per Share (Tables)

3 Months Ended

Jun. 30, 2013

Text Block [Abstract]

Schedule of Weighted Average Number of Shares



	Quarter ended
	June 30, 2013		July 1, 2012
Net earnings attributable to EnerSys stockholders	$	40,847	$	45,804
Weighted-average number of common shares outstanding:
Basic	47,868,982		47,901,203
Dilutive effect of:
Common shares from exercise and lapse of equity awards, net of shares assumed reacquired	829,509		525,788
Convertible Notes	606,453		—
Diluted weighted-average number of common shares outstanding	49,304,944		48,426,991
Basic earnings per common share attributable to EnerSys stockholders	$	0.85	$	0.96
Diluted earnings per common share attributable to EnerSys stockholders	$	0.83	$	0.95
Anti-dilutive equity awards not included in diluted weighted-average common shares	15,632		107,217

Business Segments Business Segments (Tables)

3 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Selected Financial Data for Reportable Business Segments and Product Lines



	Quarter ended
	June 30, 2013			July 1, 2012
Net sales by segment to unaffiliated customers
EMEA	$	230,967		$	237,051
Americas	315,623			288,924
Asia	50,707			67,935
Total net sales	$	597,297		$	593,910
Net sales by product line
Reserve power	$	292,819		$	289,294
Motive power	304,478			304,616
Total net sales	$	597,297		$	593,910
Intersegment sales
EMEA	$	18,297		$	22,162
Americas	10,093			10,554
Asia	7,711			6,359
Total intersegment sales ⁽¹⁾	$	36,101		$	39,075
Operating earnings by segment
EMEA	$	16,083		$	17,220
Americas	41,725			44,514
Asia	5,221			8,891
Restructuring charges - EMEA	(421		)	(370		)
Total operating earnings ⁽²⁾	$	62,608		$	70,255


⁽¹⁾	Intersegment sales are presented on a cost-plus basis which takes into consideration the effect of transfer prices between legal entities.


⁽²⁾	The Company does not allocate interest expense or other (income) expense to the reportable segments.

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Mar. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 90,164	$ 88,787
Work-in-process	106,562	113,119
Finished goods	136,191	152,035
Total	$ 332,917	$ 353,941

Fair Value of Financial Instruments (Financial Assets and (Liabilities)) (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Mar. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	$ (52)	$ (3,497)
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	(52)	(3,497)
Interest rate swap agreements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value		(654)
Interest rate swap agreements \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value		(654)
Lead hedge forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	585	(2,832)
Lead hedge forward contracts \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	585	(2,832)
Foreign currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	(637)	(11)
Foreign currency forward contracts \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	$ (637)	$ (11)

Fair Value of Financial Instruments (Carrying Amounts and Estimated Fair Values) (Details) - USD ($)
$ in Thousands

Jun. 30, 2013

Mar. 31, 2013

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Derivatives assets, Carrying Amount

^[1]

$ 586

$ 241

Derivatives assets, Fair Value

^[1]

586

241

Derivatives liabilities

638

3,738

Derivatives liabilities, Fair Value

638

3,738

Convertible Notes Payable

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Convertible Notes Payable

^[2]

157,117

155,273

Convertible Notes, Fair Value

^[3]

$ 224,250

$ 217,350

[1]	Represents interest rate swap agreements, lead and foreign currency hedges (see Note 4 for asset and liability positions of the interest rate swap agreements, lead and foreign currency hedges at June 30, 2013 and March 31, 2013).
[2]	The carrying amounts of the Convertible Notes at June 30, 2013 and March 31, 2013 represent the $172,500 principal value, less the unamortized debt discount (see Note 9).
[3]	The fair value amounts of the Convertible Notes at June 30, 2013 and March 31, 2013 represent the trading values of the Convertible Notes with a principal value of $172,500.

Fair Value of Financial Instruments (Additional Information) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Face value of debt instrument	$ 172,500,000	$ 172,500,000
Conversion option price per share	$ 40.60
Convertible Notes Payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Face value of debt instrument	$ 172,500,000	$ 17,227,000
Debt Instrument Interest Rate	3.375%
Price of stock per share when convertible notes were issued		$ 30.19
Closing price of stock per share	$ 49.04
Conversion option price per share	$ 40.60
Trading of convertible notes, face value, disclosed as a percentage	130.00%	126.00%

Derivative Financial Instruments (Location and Amounts of Derivative Fair Values) (Details) - USD ($)
$ in Thousands

3 Months Ended

Jun. 30, 2013

Jul. 01, 2012

Mar. 31, 2013

Derivatives, Fair Value [Line Items]

Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)

$ (1,455)

Derivatives assets, Fair Value

^[1]

586

$ 241

Derivatives liabilities, Fair Value

638

3,738

Dedesignated As Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net

(909)

$ (5,706)

Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)

1,455

2,776

Designated as Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

586

Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

207

2,832

Not Designated as Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net

(226)

(129)

Derivatives assets, Fair Value

241

Not Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

431

654

Foreign currency forward contracts | Dedesignated As Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net

(606)

707

Foreign currency forward contracts | Designated as Hedging Instrument | Prepaid and other current assets

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

Foreign currency forward contracts | Designated as Hedging Instrument | Other assets

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

Foreign currency forward contracts | Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

207

252

Foreign currency forward contracts | Not Designated as Hedging Instrument | Prepaid and other current assets

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

241

Foreign currency forward contracts | Not Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

431

Interest rate swap agreements | Not Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

654

Lead hedge forward contracts | Dedesignated As Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net

(303)

(6,413)

Lead hedge forward contracts | Designated as Hedging Instrument | Prepaid and other current assets

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

559

Lead hedge forward contracts | Designated as Hedging Instrument | Other assets

Derivatives, Fair Value [Line Items]

Derivatives assets, Fair Value

Lead hedge forward contracts | Designated as Hedging Instrument | Accrued expenses

Derivatives, Fair Value [Line Items]

Derivatives liabilities, Fair Value

$ 3,084

Other Income Expense | Foreign currency forward contracts | Not Designated as Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net

(226)

(114)

Other Income Expense | Interest rate swap agreements | Not Designated as Hedging Instrument

Derivatives, Fair Value [Line Items]

Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net

(15)

Cost of Sales | Foreign currency forward contracts | Dedesignated As Hedging Instrument

Derivatives, Fair Value [Line Items]

Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)

(591)

1,278

Cost of Sales | Lead hedge forward contracts | Dedesignated As Hedging Instrument

Derivatives, Fair Value [Line Items]

Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)

$ 2,046

$ 1,498

[1]	Represents interest rate swap agreements, lead and foreign currency hedges (see Note 4 for asset and liability positions of the interest rate swap agreements, lead and foreign currency hedges at June 30, 2013 and March 31, 2013).

Derivative Financial Instruments (Derivatives Designated as Cash Flow Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (1,455)
Dedesignated As Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(909)	$ (5,706)
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	1,455	2,776
Dedesignated As Hedging Instrument \| Lead hedge forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(303)	(6,413)
Dedesignated As Hedging Instrument \| Lead hedge forward contracts \| Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	2,046	1,498
Dedesignated As Hedging Instrument \| Foreign currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(606)	707
Dedesignated As Hedging Instrument \| Foreign currency forward contracts \| Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (591)	$ 1,278

Derivative Financial Instruments (Derivatives Not Designated as Hedging Instruments) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (226)	$ (129)
Interest rate swap agreements \| Other Income Expense
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		(15)
Foreign currency forward contracts \| Other Income Expense
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (226)	$ (114)

Derivative Financial Instruments (Additional Information) (Details) $ in Thousands, lb in Millions	3 Months Ended
	Jun. 30, 2013 USD ($) lb	Jul. 01, 2012 USD ($)	Mar. 31, 2013 USD ($) lb
Derivatives, Fair Value [Line Items]
Foreign currency forward contracts	$ 71,227		$ 51,366
Interest rate swap agreements converted into fixed rate basis			65,000
Foreign currency contract, maturity	1 year
Recorded expense in the consolidated condensed statements of income	$ (2,358)	$ (1,250)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Change in fair value recorded in other (income) expense, net	0	15
Cost of Sales
Derivatives, Fair Value [Line Items]
Derivative gain (loss) to be recorded in income within 12 months, before tax	3,624
Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional amount	10,722		$ 21,749
Recorded expense in the consolidated condensed statements of income	$ 226	$ 114
Lead hedge forward contracts
Derivatives, Fair Value [Line Items]
Notional amount in pounds \| lb	90.9		56.3
Hedging Derivatives Maturity Upper Limit	1 year

Income Taxes (Additional Information) (Details)	3 Months Ended
Income Taxes (Additional Information) (Details)	Jun. 30, 2013	Jul. 01, 2012
Disclosure Income Taxes Additional Information [Abstract]
Effective income tax rates	27.80%	29.10%

Warranties (Analysis of Changes in the Liability) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Disclosure Analysis Of Changes In Liability For Product Warranties [Abstract]
Balance at beginning of period	$ 42,591	$ 42,067
Current period provisions	5,343	5,596
Costs incurred	(5,753)	(4,495)
Foreign exchange and other	21	(680)
Balance at end of period	$ 42,202	$ 42,488

Commitments Contingencies and Litigation (Additional Information) (Details) $ in Thousands, lb in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2013 USD ($) lb	Mar. 31, 2013 USD ($) lb
Foreign currency forward contracts
Commitments, Contingencies And Litigation [Line Items]
Purchase price of hedges	$ 81,949	$ 73,115
Interest rate swap agreements
Commitments, Contingencies And Litigation [Line Items]
Convertible interest rate swap	$ 65,000	$ 85,000
Interest rate swap agreements \| Minimum
Commitments, Contingencies And Litigation [Line Items]
Interest rate swap agreements expiration date	Feb. 01, 2013
Interest rate swap agreements \| Maximum
Commitments, Contingencies And Litigation [Line Items]
Interest rate swap agreements expiration date	May 01, 2013
Lead hedge forward contracts
Commitments, Contingencies And Litigation [Line Items]
Purchase price of hedges, pounds of lead \| lb	90.9	56.3
Purchase price of hedges	$ 83,996	$ 56,601

Restructuring Plans (Roll-forward of Restructuring Reserve) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 01, 2012	Jun. 30, 2013	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		$ 1,230	$ 1,959
Restructuring and Related Cost, Incurred Cost	$ 421
Payments for Restructuring	(1,165)
Restructuring Reserve, Translation Adjustment	15
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		1,117	1,738
Restructuring and Related Cost, Incurred Cost	421
Payments for Restructuring	(1,057)
Restructuring Reserve, Translation Adjustment	15
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		$ 113	$ 221
Restructuring and Related Cost, Incurred Cost	0
Payments for Restructuring	(108)
Restructuring Reserve, Translation Adjustment	$ 0

Restructuring Plans (Additional Information) (Details)	3 Months Ended		12 Months Ended
Restructuring Plans (Additional Information) (Details)	Jun. 30, 2013 USD ($)	Jul. 01, 2012 USD ($)	Mar. 31, 2013 USD ($) Employee	Mar. 31, 2012 USD ($) Employee
Restructuring Cost and Reserve [Line Items]
Charges related to restructuring plan		$ 421,000
Restructuring reserve	$ 1,230,000		$ 1,959,000
Restructuring charges	421,000	370,000
European Operations
Restructuring Cost and Reserve [Line Items]
Charges related to restructuring plan			952,000
Restructuring charges	0		3,998,000
Restructuring charges, non-cash charges related to the write-off of fixed assets and inventory			1,399,000
Restructuring charges, cash charges related to employee severance and other charges	1,073		$ 2,599,000
European Operations \| Restructuring Twenty Thirteen Actions
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	954,000
European Operations \| Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Expected reduction in number of employees \| Employee			130
Severance-related costs			$ 8,100,000
Expected additional restructuring charges			2,700,000
Europe
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred to date				$ 5,178,000
Charges related to restructuring plan				$ 4,579,000
German Operation
Restructuring Cost and Reserve [Line Items]
Expected reduction in number of employees \| Employee				85
Severance-related costs			3,600,000
Restructuring charges incurred to date			3,545,000
Charges related to restructuring plan				$ 3,346,000
Restructuring reserve	188,000
China Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges, non-cash charges related to the write-off of fixed assets and inventory			2,290,000
Restructuring charges, cash charges related to employee severance and other charges			401,000
China Facilities \| Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Severance-related costs			3,400,000
Restructuring reserve	88,000
Restructuring charges			2,691,000
Restructuring charges, cash charges related to employee severance and other charges	$ 92	$ 221
Expected additional restructuring charges			$ 700,000

Debt (Long-term Debt Including Capital Lease Obligations) (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Mar. 31, 2013
Debt Instrument [Line Items]
Capital lease obligations and other	$ 434	$ 514
Gross long-term debt and capital lease obligations	157,551	155,787
Less current portion	274	311
Long-term debt and capital lease obligations	157,277	155,476
Convertible Notes Payable
Debt Instrument [Line Items]
Long-term debt	$ 157,117	$ 155,273

Debt (Convertible Notes) (Details) - USD ($)	Jun. 30, 2013	Mar. 31, 2013
Face value of debt instrument	$ 172,500,000	$ 172,500,000
Convertible Notes Payable
Principal		172,500,000
Unamortized discount	15,383,000
Face value of debt instrument	172,500,000	17,227,000
Long-term debt	157,117,000	155,273,000
Carrying amount of equity component	$ 29,850,000	$ 29,850,000

Debt (Additional Information) (Details) - USD ($)	3 Months Ended
Debt (Additional Information) (Details) - USD ($)	Jun. 30, 2013	Dec. 31, 2012	Jan. 01, 2012	Mar. 31, 2013
Debt Instrument [Line Items]
Amortized remaining discount period	23 months
Face value of debt instrument	$ 172,500,000			$ 172,500,000
Conversion option price per share	$ 40.60
Aggregate consideration on conversion shares	4,248,761
Short-term debt	$ 20,687,000			$ 22,702,000
Short-term Debt, Weighted Average Interest Rate	10.00%			9.00%
Convertible Notes Payable
Debt Instrument [Line Items]
Face value of debt instrument	$ 172,500,000			$ 17,227,000
Conversion option price per share	$ 40.60
Interest rate percentage	8.50%
Amount of interest cost recognized for the amortization of the discount		$ 1,844,000	$ 1,696,000
Available lines of credit	$ 475,289,000			469,123,000
Outstanding amount	126,539,000			120,373,000
Stand by letters of credit	$ 8,124,000			$ 11,854,000

Retirement Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 91	$ 81
Interest cost	156	164
Expected return on plan assets	(199)	(189)
Amortization and deferral	(133)	(100)
Net periodic benefit cost	181	156
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	200	177
Interest cost	580	594
Expected return on plan assets	(511)	(464)
Amortization and deferral	(104)	(52)
Net periodic benefit cost	$ 373	$ 359

- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Glossary Expected Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512136

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 60
-Glossary Expected Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512171

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(3)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References + Details

- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Service Cost (Component of Net Periodic Pension Cost)
-URI http://asc.fasb.org/extlink&oid=6525008

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a, h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation (Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants	3,177,477
Equity-based compensation expense	$ 3,023	$ 3,373
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options exercised	5,523
Vested restricted stock and restricted stock units	216,432
Stock option grants outstanding	537,121
Nonqualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option grants outstanding	72,463
Market Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested restricted stock and restricted stock units	222,123
Stock option grants outstanding	666,737
Management \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock unit grants during period	150,629
Percentage of restricted stock units granted, vested per year	25.00%
Vesting period	4 years
Management \| Market Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock unit grants during period	189,438	1,626
Vesting period	3 years

Stockholders' Equity (Change in the Number of Shares of Common Stock Outstanding) (Details)	3 Months Ended
	Jun. 30, 2013 shares
Class of Stock [Line Items]
Shares outstanding, ending balance	47,685,093
Number of shares of common stock purchased	(441,588)
Shares issued as part of equity-based compensation plans, net of equity awards surrendered for option price and taxes	286,477

- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ References + Details

Stockholders' Equity (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Pension funded status adjustment	$ (13,169)
Unrealized gain on derivative instruments	(832)
Foreign currency translation adjustment	54,656
Accumulated other comprehensive income	38,235		$ 40,655
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract]
Amount recognized in AOCI, net of tax	0
Amount recognized in AOCI - Derivatives, net of tax	(573)
Amount recognized in AOCI - CTA, net of tax	(1,133)
Accumulated other comprehensive income, Before-Tax Amount	(1,706)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax [Abstract]
Amount reclassified out of AOCI, net of tax	201	$ 215
Amount reclassified out of AOCI - Derivatives, net of tax	915
Amount reclassified out of AOCI - CTA, net of tax	0
Accumulated other comprehensive income	(714)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]
Pension funded status adjustment	(12,968)
Unrealized gain on derivative instruments	(2,320)
Foreign currency translation adjustment	53,523
Accumulated other comprehensive income	$ 38,235

Stockholders' Equity Components of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Equity [Abstract]
Net unrealized (gain) on derivative instruments	$ (1,455)
Unrealized gain (loss) on derivative instruments, Tax Benefit (Expense)	540
Unrealized gain (loss) on derivative instrument, Net-of-Tax Amount	(915)
Pension funded status adjustment, Before-Tax Amount	237
Pension funded status adjustment, Tax Benefit (Expense)	36
Net periodic benefit cost, net of tax	$ 201	$ 215

Stockholders' Equity Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Mar. 31, 2013
Noncontrolling Interest [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	$ 5,908		$ 5,882
Net losses attributable to noncontrolling interests	(430)	$ (240)
Unrealized gain (loss) on derivative instrument, Net-of-Tax Amount	(915)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(201)	(215)
Other Comprehensive Income (Loss), Net of Tax	(3,221)	(37,106)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	37,196	8,458
Payments for Repurchase of Common Stock	21,993	0
Payments of Dividends	5,965	$ 0
Redeemable Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	1,179,406		1,169,401
Net losses attributable to noncontrolling interests	40,847
Unrealized gain (loss) on derivative instrument, Net-of-Tax Amount	(1,488)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	201
Foreign currency translation adjustment, Net-of Tax Amount	(1,133)
Other Comprehensive Income (Loss), Net of Tax	(2,420)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	38,427
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Payments for Repurchase of Common Stock	(21,993)
Payments of Dividends	(5,965)
Proceeds from Stock Options Exercised	(464)
Nonredeemable Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	5,908		5,882
Net losses attributable to noncontrolling interests	50
Unrealized gain (loss) on derivative instrument, Net-of-Tax Amount	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0
Foreign currency translation adjustment, Net-of Tax Amount	(24)
Other Comprehensive Income (Loss), Net of Tax	(24)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	26
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Payments for Repurchase of Common Stock	0
Payments of Dividends	0
Proceeds from Stock Options Exercised	0
Stockholders' Equity, Total [Member]
Noncontrolling Interest [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	1,185,314		$ 1,175,283
Net losses attributable to noncontrolling interests	40,897
Unrealized gain (loss) on derivative instrument, Net-of-Tax Amount	(1,488)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	201
Foreign currency translation adjustment, Net-of Tax Amount	(1,157)
Other Comprehensive Income (Loss), Net of Tax	(2,444)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	38,453
Payments for Repurchase of Common Stock	(21,993)
Payments of Dividends	(5,965)
Proceeds from Stock Options Exercised	$ (464)

Stockholders' Equity - Additional Information (Details) (Details) - USD ($)	3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013
Equity [Abstract]
Number of shares of common stock purchased	441,588
Value of shares of common stock purchased	$ 21,993
Treasury stock, shares	5,571,665	5,130,077

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References + Details

Stockholders' Equity Redeemable Noncontrolling Interests (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2013 USD ($)
Noncontrolling Interest [Abstract]
Beginning balance, redeemable noncontrolling interests	$ 11,095
Net losses attributable to noncontrolling interests	(480)
Foreign Currency Translation Adjustments	(777)
Ending balance, redeemable noncontrolling interests	$ 9,838

- Definition

The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References + Details

Earnings Per Share (Reconciliation from Basic to Diluted Average Common Shares) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Earnings Per Share [Abstract]
Net earnings attributable to EnerSys stockholders	$ 40,847	$ 45,804
Basic	47,868,982	47,901,203
Common shares from exercise and lapse of equity awards, net of shares assumed reacquired	829,509	525,788
Incremental Common Shares Attributable to Conversion of Debt Securities	606,453	0
Diluted weighted-average number of common shares outstanding	49,304,944	48,426,991
Basic earnings per common share attributable to EnerSys stockholders	$ 0.85	$ 0.96
Diluted earnings per common share attributable to EnerSys stockholders	$ 0.83	$ 0.95
Anti-dilutive equity awards not included in diluted weighted-average common shares	15,632	107,217

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.21)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.23)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 18
-Article 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e565-108580

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 19
-Article 5

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References + Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Weighted-Average Number of Common Shares Outstanding
-URI http://asc.fasb.org/extlink&oid=6528421

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Earnings Per Share (Additional Information) (Details) - $ / shares	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Disclosure Earnings Per Share Additional Information [Abstract]
Number of common shares issue upon conversion	4,248,761
Average Price of Stock	$ 47.36
Conversion option price per share	$ 40.60
Incremental Common Shares Attributable to Conversion of Debt Securities	606,453	0

Business Segments (Details) - USD ($)
$ in Thousands

3 Months Ended

Jun. 30, 2013

Jul. 01, 2012

Segment Reporting Information [Line Items]

Total net sales

$ 597,297

$ 593,910

Net sales revenue by services

597,297

593,910

Total intersegment sales

^[1]

36,101

39,075

Total operating earnings

^[2]

62,608

70,255

Restructuring charges

421

370

Reserve Power

Segment Reporting Information [Line Items]

Net sales revenue by services

292,819

289,294

Motive Power

Segment Reporting Information [Line Items]

Net sales revenue by services

304,478

304,616

Europe

Segment Reporting Information [Line Items]

Total net sales

230,967

237,051

Total intersegment sales

18,297

22,162

Total operating earnings

16,083

17,220

Restructuring charges

(421)

(370)

Americas

Segment Reporting Information [Line Items]

Total net sales

315,623

288,924

Total intersegment sales

10,093

10,554

Total operating earnings

41,725

44,514

Asia

Segment Reporting Information [Line Items]

Total net sales

50,707

67,935

Total intersegment sales

7,711

6,359

Total operating earnings

$ 5,221

$ 8,891

[1]	Intersegment sales are presented on a cost-plus basis which takes into consideration the effect of transfer prices between legal entities.
[2]	The Company does not allocate interest expense or other (income) expense to the reportable segments.

Subsequent Events Subsequent Events (Details)	3 Months Ended
Subsequent Events Subsequent Events (Details)	Jun. 30, 2013 USD ($) $ / shares
Subsequent Events [Abstract]
Common Stock, Dividends, Per Share, Declared \| $ / shares	$ 0.125
Line of Credit Facility, Maximum Borrowing Capacity \| $	$ 350,000

Label	Element	Value
Common Stock, Shares, Outstanding	us-gaap_CommonStockSharesOutstanding	47,840,204