EnerSys (ENS) 10-Q 8 Nov 17 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Oct. 01, 2017	Nov. 03, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 1, 2017
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	ENS
Entity Registrant Name	EnerSys
Entity Central Index Key	1,289,308
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		42,124,966

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Current assets:
Cash and cash equivalents	$ 540,113	$ 500,329
Accounts receivable, net of allowance for doubtful accounts: October 1, 2017 - $13,249; March 31, 2017 - $12,662	502,869	486,646
Total	422,508	360,694
Prepaid and other current assets	82,248	71,246
Total current assets	1,547,738	1,418,915
Property, plant, and equipment, net	365,349	348,549
Goodwill	346,161	328,657
Other intangible assets, net	151,533	153,960
Deferred taxes	35,038	31,587
Other assets	11,987	11,361
Total assets	2,457,806	2,293,029
Current liabilities:
Short-term debt	12,978	18,359
Accounts payable	235,239	222,493
Accrued expenses	203,583	226,579
Total current liabilities	451,800	467,431
Long-term Debt, Excluding Current Maturities	728,607	587,609
Deferred taxes	47,274	45,923
Other liabilities	90,084	83,697
Total liabilities	1,317,765	1,184,660
Commitments and contingencies
Equity:
Preferred Stock, $0.01 par value, 1,000,000 shares authorized, no shares issued or outstanding at October 1, 2017 and at March 31, 2017	0	0
Common Stock, $0.01 par value per share, 135,000,000 shares authorized; 54,588,070 shares issued and 42,124,703 shares outstanding at October 1, 2017; 54,370,810 shares issued and 43,447,536 shares outstanding at March 31, 2017	546	544
Additional paid-in capital	446,794	464,092
Treasury stock, at cost, 12,463,367 shares held as of October 1, 2017; 10,923,274 shares held as of March 31, 2017	(540,991)	(439,800)
Retained earnings	1,307,424	1,231,444
Accumulated other comprehensive income	(78,726)	(152,824)
Total EnerSys stockholders' equity	1,135,047	1,103,456
Noncontrolling interests	4,994	4,913
Total equity	1,140,041	1,108,369
Total liabilities and equity	$ 2,457,806	$ 2,293,029

Consolidated Condensed Balance3

Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 13,249	$ 12,662
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	135,000,000	135,000,000
Common stock, shares issued (in shares)	54,588,070	54,370,810
Common stock, shares outstanding (in shares)	42,124,703	43,447,536
Treasury stock (in shares)	12,463,367	10,923,274

Consolidated Condensed Statemen

Consolidated Condensed Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Income Statement [Abstract]
Net sales	$ 617,289	$ 576,048	$ 1,239,914	$ 1,176,651
Cost of goods sold	457,415	412,094	916,943	846,363
Inventory write-off relating to exit activities	0	2,659	0	2,659
Gross profit	159,874	161,295	322,971	327,629
Operating expenses	94,108	93,493	186,761	192,498
Restructuring charges	1,776	4,893	2,609	6,190
Gain on sale of facility			(8)	(47)
Operating earnings	63,990	62,909	133,601	128,941
Interest expense	6,509	5,513	12,243	11,174
Other (income) expense, net	2,382	(582)	5,293	751
Earnings before income taxes	55,099	57,978	116,065	117,016
Income tax expense	11,948	15,185	24,592	29,604
Net earnings	43,151	42,793	91,473	87,412
Net losses attributable to noncontrolling interests	(71)	(2,843)	50	(2,797)
Net earnings attributable to EnerSys stockholders	$ 43,222	$ 45,636	$ 91,423	$ 90,209
Net earnings per common share attributable to EnerSys stockholders:
Basic earnings per common share attributable to EnerSys stockholders (in dollars per share)	$ 1.01	$ 1.05	$ 2.12	$ 2.08
Diluted earnings per common share attributable to EnerSys stockholders (in dollars per share)	1	1.04	2.09	2.06
Dividends per common share (in dollars per share)	$ 0.175	$ 0.175	$ 0.35	$ 0.35
Weighted average shares of common stock outstanding:
Basic weighted-average number of common shares outstanding (in shares)	42,938,131	43,426,955	43,194,107	43,348,449
Diluted weighted-average number of common shares outstanding (in shares)	43,327,361	43,949,543	43,745,218	43,889,678

Consolidated Condensed Stateme5

Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 43,151	$ 42,793	$ 91,473	$ 87,412
Other comprehensive income (loss):
Net unrealized gain (loss) on derivative instruments, net of tax	3,669	1,758	616	2,428
Pension funded status adjustment, net of tax	338	268	665	549
Foreign currency translation adjustments	28,131	1,172	72,848	(22,168)
Total other comprehensive gain (loss), net of tax	32,138	3,198	74,129	(19,191)
Total comprehensive income	75,289	45,991	165,602	68,221
Comprehensive loss attributable to noncontrolling interests	(6)	(2,782)	81	(2,991)
Comprehensive income attributable to EnerSys stockholders	$ 75,295	$ 48,773	$ 165,521	$ 71,212

Consolidated Condensed Stateme6

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016
Cash flows from operating activities
Net earnings	$ 91,473	$ 87,412
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	26,624	27,139
Write-off of assets relating to restructuring charges	210	3,982
Non-cash write-off of property, plant and equipment	0	6,300
Derivatives not designated in hedging relationships:
Net (gains) losses	(12)	177
Cash settlements	(287)	(866)
Provision for doubtful accounts	764	1,919
Deferred income taxes	(445)	1,280
Non-cash interest expense	975	694
Stock-based compensation	9,523	9,857
Gain on sale of facility	(8)	(47)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	2,412	21,177
Inventories	(51,089)	(41,205)
Prepaid and other current assets	(5,385)	(10,994)
Other assets	(770)	1,193
Accounts payable	1,912	(18,063)
Accrued expenses	(32,366)	20,625
Other liabilities	1,926	3,293
Net cash provided by operating activities	45,457	113,873
Cash flows from investing activities
Capital expenditures	(26,639)	(20,713)
Purchase of businesses	(2,964)	(12,392)
Proceeds from disposal of property, plant, and equipment	242	194
Net cash used in investing activities	(29,361)	(32,911)
Cash flows from financing activities
Net payments on short-term debt	(5,375)	(676)
Proceeds from 2017 Term Loan	150,000	0
Repayments of 2011 Term Loan	(127,500)	(7,500)
Debt issuance costs	(2,677)	0
Option proceeds	651	5
Payment of taxes related to net share settlement of equity awards	(7,407)	(7,644)
Purchase of treasury stock	(121,191)	0
Dividends paid to stockholders	(14,967)	(15,200)
Other	0	(52)
Net cash used in financing activities	(8,266)	(31,067)
Effect of exchange rate changes on cash and cash equivalents	31,954	(6,916)
Net increase in cash and cash equivalents	39,784	42,979
Cash and cash equivalents at beginning of period	500,329	397,307
Cash and cash equivalents at end of period	540,113	440,286
2017 Credit Facility, due 2022
Cash flows from financing activities
Proceeds from 2011 Revolver borrowings	343,450	0
Repayments of 2011 Revolver borrowings	(58,250)	0
2011 Credit Facility, due 2018
Cash flows from financing activities
Proceeds from 2011 Revolver borrowings	147,050	135,700
Repayments of 2011 Revolver borrowings	$ (312,050)	$ (135,700)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated condensed financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and six-month periods ended October 1, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ended March 31, 2018. The consolidated condensed balance sheet at March 31, 2017 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. The financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in the Company’s 2017 Annual Report on Form 10-K (SEC File No. 001-32253), which was filed on May 30, 2017 (the “ 2017 Annual Report ”). 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 2018 end on July 2, 2017, October 1, 2017, December 31, 2017, and March 31, 2018, respectively. The four quarters in fiscal 2017 ended on July 3, 2016, October 2, 2016, January 1, 2017, and March 31, 2017, 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. Recently Issued Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” providing guidance on revenue from contracts with customers that will supersede most current revenue recognition guidance, including industry-specific guidance. The underlying principle is that an entity will recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. In July 2015, the FASB voted to delay the effective date for interim and annual reporting periods beginning after December 15, 2017, with early adoption permissible one year earlier. The standard permits the use of either modified retrospective or full retrospective transition methods. The Company has substantially completed an impact assessment of the potential changes from adopting ASU 2014-09. The impact assessment included a review of customer arrangements across all of its global business units and an in-depth analysis of its global revenue processes and accounting policies to identify potential areas where change may be needed to comply with ASC 606. The Company has not selected a transition method and is currently evaluating the impact the adoption of the standard will have on its financial condition, results of operations and cash flows. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)”, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). This update requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. This update is effective for annual periods beginning after December 15, 2018, using a modified retrospective approach, with early adoption permitted. The Company is currently assessing the potential impact that the adoption will have on its consolidated financial statements. In October 2016, the FASB issued ASU 2016-16, “Income Taxes (Topic 740)”: Intra-Entity Transfers of Assets Other than Inventory. ASU 2016-16 requires that an entity recognize the income tax consequences of an intra-entity transfer of assets other than inventory when the transfer occurs. This update is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. The Company early adopted the standard on a modified retrospective basis during the first quarter of fiscal 2018 through a cumulative-effect adjustment directly to retained earnings of $137 , as of the beginning of the period of adoption. In March 2017, the FASB issued ASU No. 2017-07,“Compensation—Retirement Benefits (Topic 715)” which requires an entity to report the service cost component of pension and other postretirement benefit costs in the same line item as other compensation costs. The other components of net (benefit) cost will be required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. This standard is effective for interim and annual reporting periods beginning after December 15, 2017 with early adoption permitted. The Company is currently assessing the potential impact that the adoption will have on its consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815)”: Targeted Improvements to Accounting for Hedging Activities, which amends and simplifies existing guidance in order to allow companies to more accurately present the economic effects of risk management activities in the financial statements. The guidance eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item.

Inventories

Inventories	6 Months Ended
	Oct. 01, 2017
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories, net consist of: October 1, 2017 March 31, 2017 Raw materials $ 96,587 $ 85,604 Work-in-process 138,812 107,177 Finished goods 187,109 167,913 Total $ 422,508 $ 360,694

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Recurring Fair Value Measurements The following tables represent the financial assets and (liabilities) measured at fair value on a recurring basis as of October 1, 2017 and March 31, 2017 , and the basis for that measurement: Total Fair Value Measurement October 1, 2017 Quoted Price in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Lead forward contracts $ 3,356 $ — $ 3,356 $ — Foreign currency forward contracts (303 ) — (303 ) — Total derivatives $ 3,053 $ — $ 3,053 $ — Total Fair Value Measurement March 31, 2017 Quoted Price in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Lead forward contracts $ 1,163 $ — $ 1,163 $ — Foreign currency forward contracts (313 ) — (313 ) — Total derivatives $ 850 $ — $ 850 $ — 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 within the fair value hierarchy, as described in Note 1, Summary of Significant Accounting Policies to the Company's consolidated financial statements included in its 2017 Annual Report . 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 approximate carrying value due to their short maturities. The fair value of the Company’s short-term debt and borrowings under the new 2017 Credit Facility and the previous 2011 Credit Facility (as defined in Note 9), approximate their respective carrying value, as they are variable rate debt and the terms are comparable to market terms as of the balance sheet dates and are classified as Level 2. The Company's 5.00% Senior Notes due 2023 (the “Notes”), with an original face value of $300,000 , were issued in April 2015. The fair value of these Notes represent the trading values based upon quoted market prices and are classified as Level 2. The Notes were trading at approximately 104% and 101% of face value on October 1, 2017 and March 31, 2017 , respectively. The carrying amounts and estimated fair values of the Company’s derivatives and Notes at October 1, 2017 and March 31, 2017 were as follows: October 1, 2017 March 31, 2017 Carrying Amount Fair Value Carrying Amount Fair Value Financial assets: Derivatives (1) $ 3,356 $ 3,356 $ 1,163 $ 1,163 Financial liabilities: Notes (2) $ 300,000 $ 312,000 $ 300,000 $ 303,000 Derivatives (1) 303 303 313 313 (1) Represents lead and foreign currency forward contracts (see Note 4 for asset and liability positions of the lead and foreign currency forward contracts at October 1, 2017 and March 31, 2017 ). (2) The fair value amount of the Notes at October 1, 2017 and March 31, 2017

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments The Company utilizes derivative instruments to reduce its exposure to fluctuations in commodity prices and foreign exchange 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 Forward Contracts The Company enters into lead forward contracts to fix the price for a portion of its lead purchases. Management considers the lead 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. At October 1, 2017 and March 31, 2017 , the Company has hedged the price to purchase approximately 50.1 million pounds and 45.0 million pounds of lead, respectively, for a total purchase price of $53,235 and $46,550 , respectively. Foreign Currency Forward Contracts The Company uses foreign currency forward contracts and options 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 October 1, 2017 and March 31, 2017 , the Company had entered into a total of $45,116 and $30,751 , respectively, of such contracts. In the coming twelve months, the Company anticipates that $4,102 of pretax gain 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 net 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 Consolidated Condensed Statement of Income 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 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 and payables. These are not designated as hedging instruments and changes in fair value of these instruments are recorded directly in the Consolidated Condensed Statements of Income. As of October 1, 2017 and March 31, 2017 , the notional amount of these contracts was $14,740 and $13,560 , 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 October 1, 2017 and March 31, 2017 Derivatives and Hedging Activities Designated as Cash Flow Hedges Derivatives and Hedging Activities Not Designated as Hedging Instruments October 1, 2017 March 31, 2017 October 1, 2017 March 31, 2017 Prepaid and other current assets Lead forward contracts $ 3,356 $ 1,163 $ — $ — Foreign currency forward contracts — 11 — — Total assets $ 3,356 $ 1,174 $ — $ — Accrued expenses Foreign currency forward contracts $ 278 $ — $ 25 $ 324 Total liabilities $ 278 $ — $ 25 $ 324 The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the quarter ended October 1, 2017 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 forward contracts $ 3,896 Cost of goods sold $ (1,892 ) Foreign currency forward contracts (1,029 ) Cost of goods sold (1,067 ) Total $ 2,867 $ (2,959 ) Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ (36 ) Total $ (36 ) The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the quarter ended October 2, 2016 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 forward contracts $ 2,807 Cost of goods sold $ 217 Foreign currency forward contracts 150 Cost of goods sold (46 ) Total $ 2,957 $ 171 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ 125 Total $ 125 The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the six months ended October 1, 2017 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 forward contracts $ 3,082 Cost of goods sold $ (89 ) Foreign currency forward contracts (3,088 ) Cost of goods sold (903 ) Total $ (6 ) $ (992 ) Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ 12 Total $ 12 The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the six months ended October 2, 2016 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 forward contracts $ 4,620 Cost of goods sold $ 1,276 Foreign currency forward contracts 278 Cost of goods sold (226 ) Total $ 4,898 $ 1,050 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ (177 ) Total $ (177 )

Income Taxes

Income Taxes	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Income Taxes	Income Taxes The Company’s income tax provision consists of federal, state and foreign income taxes. The tax provision for the second quarters of fiscal 2018 and 2017 was based on the estimated effective tax rates applicable for the full years ending March 31, 2018 and March 31, 2017 , respectively, after giving effect to items specifically related to the interim periods. The Company’s effective income tax rate with respect to any period may be volatile based on the mix of income in the tax jurisdictions in which the Company operates and the amount of the Company's consolidated income before taxes. The consolidated effective income tax rates for the second quarters of fiscal 2018 and 2017 were 21.7% and 26.2% , respectively, and for the six months of fiscal 2018 and 2017 were 21.2% and 25.3% , respectively. The rate decrease in the second quarter and six months of fiscal 2018 compared to the comparable prior year periods of fiscal 2017 is primarily due to changes in the mix of earnings among tax jurisdictions. Foreign income as a percentage of worldwide income is estimated to be 63% for fiscal 2018 compared to 57% for fiscal 2017 . The foreign effective income tax rates for the six months of fiscal 2018 and 2017 were 11.2% and 14.5% , respectively. The rate decrease compared to the prior year period is primarily due to changes in the mix of earnings among tax jurisdictions. Income from the Company's Swiss subsidiary comprised a substantial portion of the Company's overall foreign mix of income and is taxed at an effective income tax rate of approximately 6%

Warranty

Warranty	6 Months Ended
	Oct. 01, 2017
Disclosure Analysis Of Changes In Liability For Product Warranties [Abstract]
Warranty	Warranty The Company provides for estimated product warranty expenses when the related products are sold, with related liabilities included within accrued expenses and other liabilities. As 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 Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Balance at beginning of period $ 46,677 $ 48,075 $ 46,116 $ 48,422 Current period provisions 3,717 5,611 6,808 10,847 Costs incurred (3,841 ) (5,883 ) (7,037 ) (8,242 ) Foreign currency translation adjustment 560 309 1,226 (2,915 ) Balance at end of period $ 47,113 $ 48,112 $ 47,113 $ 48,112

Commitments, Contingencies and

Commitments, Contingencies and Litigation	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Commitments, Contingencies and Litigation	Commitments, Contingencies and Litigation Litigation and Other Legal Matters In the ordinary course of business, the Company and its subsidiaries are routinely defendants in or parties to pending and threatened legal actions and proceedings, including actions brought on behalf of various classes of claimants. These actions and proceedings are generally based on alleged violations of environmental, anticompetition, employment, contract and other laws. In some of these actions and proceedings, claims for substantial monetary damages are asserted against the Company and its subsidiaries. In the ordinary course of business, the Company and its subsidiaries are also subject to regulatory and governmental examinations, information gathering requests, inquiries, investigations, and threatened legal actions and proceedings. In connection with formal and informal inquiries by federal, state, local and foreign agencies, the Company and its subsidiaries receive numerous requests, subpoenas and orders for documents, testimony and information in connection with various aspects of their activities. European Competition Investigations Certain of the Company’s European subsidiaries had received subpoenas and requests for documents and, in some cases, interviews from, and have had on-site inspections conducted by, the competition authorities of Belgium, Germany and the Netherlands relating to conduct and anticompetitive practices of certain industrial battery participants. The Company settled the Belgian regulatory proceeding in February 2016 by acknowledging certain anticompetitive practices and conduct and agreeing to pay a fine of $1,962 , which was paid in March 2016. As of October 1, 2017 and March 31, 2017 , the Company had a reserve balance of $2,022 and $1,830 , respectively, relating to the Belgian regulatory proceeding. The change in the reserve balance between October 1, 2017 and March 31, 2017 was solely due to foreign currency translation impact. In June 2017, the Company settled a portion of its previously disclosed proceeding involving the German competition authority relating to conduct involving the Company's motive power battery business and agreed to pay a fine of $14,811 , which was paid on July 11, 2017. As of October 1, 2017 and March 31, 2017, the Company had a reserve balance of $0 and $ 13,463 , respectively, relating to this matter. Also in June 2017, the German competition authority issued a fining decision related to the Company's reserve power battery business, which constitutes the remaining portion of the previously disclosed German proceeding. The Company is appealing this decision, including payment of the proposed fine of $11,415 , and believes that the reserve power matter does not, based on current facts and circumstances known to management, require an accrual. The Company is not required to escrow any portion of this fine during the appeal process. In July 2017, the Company settled the Dutch regulatory proceeding and agreed to pay a fine of $11,229 , which was paid on August 11, 2017. As of October 1, 2017 and March 31, 2017, the Company had a reserve balance of $0 and $10,258 , respectively, relating to the Dutch regulatory proceeding. As of October 1, 2017 and March 31, 2017 , the Company had a total reserve balance of $2,022 and $25,551 , respectively, in connection with these investigations and other related legal matters, included in accrued expenses on the Consolidated Condensed Balance Sheets. The foregoing estimate of losses is based upon currently available information for these proceedings. However, the precise scope, timing and time period at issue, as well as the final outcome of the investigations or customer claims, remain uncertain. Accordingly, the Company’s estimate may change from time to time, and actual losses could vary. 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 registering, 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. The Company is responsible for certain cleanup obligations at the former Yuasa battery facility in Sumter, South Carolina, that predates its ownership of this facility. This manufacturing facility was closed in 2001 and the Company established a reserve for this facility, which was $1,117 and $1,123 as of October 1, 2017 and March 31, 2017 . Based on current information, the Company’s management believes this reserve is adequate to satisfy the Company’s environmental liabilities at this facility. This facility is separate from the Company’s current metal fabrication facility in Sumter. Lead and Foreign Currency Forward Contracts

Restructuring

Restructuring	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Restructuring	Restructuring Plans During fiscal 2016, the Company announced restructurings to improve efficiencies primarily related to its motive power assembly and distribution center in Italy and its sales and administration organizations in EMEA. In addition, the Company announced a further restructuring related to its manufacturing operations in Europe. The Company estimates that the total charges for these actions will amount to approximately $6,600 primarily from cash charges for employee severance-related payments and other charges. The Company estimates that these actions will result in the reduction of approximately 130 employees upon completion. In fiscal 2016, the Company recorded restructuring charges of $5,232 and recorded an additional $1,251 during fiscal 2017. The Company incurred $2,993 in costs against the accrual in fiscal 2016 and incurred an additional $3,037 against the accrual during fiscal 2017. During the six months of fiscal 2018 , the Company recorded restructuring charges of $85 and incurred $348 against the accrual. As of October 1, 2017 , the reserve balance associated with these actions is $154 . The Company expects no further restructuring charges related to these actions and expects to complete the program during fiscal 2018. During fiscal 2017, the Company announced restructuring programs to improve efficiencies primarily related to its motive power production in EMEA. The Company estimates that the total charges for these actions will amount to approximately $4,500 , primarily from cash charges for employee severance-related payments and other charges. The Company estimates that these actions will result in the reduction of approximately 45 employees upon completion. During fiscal 2017, the Company recorded restructuring charges of $3,104 and incurred $749 in costs against the accrual. During the six months of fiscal 2018 , the Company recorded restructuring charges of $1,243 and incurred $1,350 against the accrual. As of October 1, 2017 , the reserve balance associated with these actions is $2,380 . The Company expects to be committed to an additional $155 in restructuring charges related to this action in fiscal 2018, when it expects to complete this program. During the first quarter of fiscal 2017, the Company announced a restructuring primarily to complete the transfer of equipment and clean-up of its manufacturing facility located in Jiangdu, the People’s Republic of China, which stopped production during fiscal 2016. This program was completed during the first quarter of fiscal 2018. The total cash charges for these actions amounted to $779 . During fiscal 2017, the Company recorded charges of $779 and incurred $648 in costs against the accrual. During the six months of fiscal 2018 , the Company recorded charges of $0 and incurred $129 in costs against the accrual. During fiscal 2018, the Company announced restructuring programs to improve efficiencies primarily related to supply chain and general operations in EMEA. The Company estimates that the total charges for these actions will amount to approximately $2,800 , primarily from cash charges for employee severance-related payments and other charges. The Company estimates that these actions will result in the reduction of approximately 25 employees upon completion. During the six months of fiscal 2018, the Company recorded restructuring charges of $996 and incurred $781 in costs against the accrual. As of October 1, 2017, the reserve balance associated with these actions is $215 . The Company expects to be committed to an additional $1,800 in restructuring charges related to this action in fiscal 2018, when it expects to complete this program. During the second quarter of fiscal 2018, the Company completed the sale of its Cleveland, Ohio facility and recorded a non-cash loss on the sale of the building of $210 and other cash charges of $75 . The Cleveland facility ceased charger production in fiscal 2017. A roll-forward of the restructuring reserve is as follows: Employee Severance Other Total Balance as of March 31, 2017 $ 2,668 $ 144 $ 2,812 Accrued 2,172 227 2,399 Costs incurred (2,310 ) (373 ) (2,683 ) Foreign currency impact 219 2 221 Balance as of October 1, 2017 $ 2,749 $ — $ 2,749

Debt

Debt	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Debt	Debt The following summarizes the Company’s long-term debt as of October 1, 2017 and March 31, 2017 : October 1, 2017 March 31, 2017 Principal Unamortized Issuance Costs Principal Unamortized Issuance Costs 5.00% Senior Notes due 2023 $ 300,000 $ 3,434 $ 300,000 $ 3,746 2017 Credit Facility, due 2022 435,200 3,159 — — 2011 Credit Facility, due 2018 — — 292,500 1,145 $ 735,200 $ 6,593 $ 592,500 $ 4,891 Less: Unamortized issuance costs 6,593 4,891 Long-term debt, net of unamortized issuance costs $ 728,607 $ 587,609 5.00% Senior Notes The Company's $300,000 Notes bear interest at a rate of 5.00% per annum. Interest is payable semiannually in arrears on April 30 and October 30 of each year, commencing on October 30, 2015. The Notes will mature on April 30, 2023, unless earlier redeemed or repurchased in full. The Notes are unsecured and unsubordinated obligations of the Company. The Notes are fully and unconditionally guaranteed (the “Guarantees”), jointly and severally, by certain of its subsidiaries that are guarantors (the “Guarantors”) under the 2011 Credit Facility and its successor, the 2017 Credit Facility. The Guarantees are unsecured and unsubordinated obligations of the Guarantors. 2017 Credit Facility On August 4, 2017, the Company entered into a new credit facility (“2017 Credit Facility”). The 2017 Credit Facility matures on September 30, 2022 and comprises a $600,000 senior secured revolving credit facility (“2017 Revolver”) and a $150,000 senior secured term loan (“2017 Term Loan”). The Company's previous credit facility (“2011 Credit Facility”) comprised a $500,000 senior secured revolving credit facility (“2011 Revolver”) and a $150,000 senior secured incremental term loan (the “2011 Term Loan”) with a maturity date of September 30, 2018. On August 4, 2017, the outstanding balance on the 2011 Revolver and the 2011 Term Loan of $240,000 and $123,750 , respectively, was repaid utilizing borrowings from the 2017 Credit Facility. As of October 1, 2017 , the Company had $285,200 outstanding on the 2017 Revolver and $150,000 under the 2017 Term Loan. The quarterly installments payable on the 2017 Term Loan are $1,875 beginning December 31, 2018, $2,813 beginning December 31, 2019 and $3,750 beginning December 31, 2020 with a final payment of $105,000 on September 30, 2022. The 2017 Credit Facility may be increased by an aggregate amount of $325,000 in revolving commitments and/or one or more new tranches of term loans, under certain conditions. Both the 2017 Revolver and the 2017 Term Loan bear interest, at the Company's option, at a rate per annum equal to either (i) the London Interbank Offered Rate (“LIBOR”) plus between 1.25% and 2.00% (currently 1.25% and based on the Company's consolidated net leverage ratio) or (ii) the Base Rate (which equals, for any day a fluctuating rate per annum equal to the highest of (a) the Federal Funds Effective Rate plus 0.50% , (b) Bank of America “Prime Rate” and (c) the Eurocurrency Base Rate plus 1% ; provided that, if the Base Rate shall be less than zero, such rate shall be deemed zero). Obligations under the 2017 Credit Facility are secured by substantially all of the Company’s existing and future acquired assets, including substantially all of the capital stock of the Company’s United States subsidiaries that are guarantors under the 2017 Credit Facility and 65% of the capital stock of certain of the Company’s foreign subsidiaries that are owned by the Company’s United States subsidiaries. Short-Term Debt As of October 1, 2017 and March 31, 2017 , the Company had $12,978 and $18,359 , respectively, of short-term borrowings. The weighted-average interest rate on these borrowings was approximately 8% and 7% at October 1, 2017 and March 31, 2017 , respectively. Letters of Credit As of October 1, 2017 and March 31, 2017 , the Company had $3,255 and $2,189 , respectively, of standby letters of credit. Debt Issuance Costs In connection with the refinancing, the Company incurred $2,677 in debt issuance costs and wrote off $301 relating to the 2011 Credit Facility. Amortization expense, relating to debt issuance costs, included in interest expense was $327 and $347 , for the quarters ended October 1, 2017 and October 2, 2016 and $674 and $694 for the six months ended October 1, 2017 and October 2, 2016 . Debt issuance costs, net of accumulated amortization, totaled $6,593 and $ 4,891 , respectively, at October 1, 2017 and March 31, 2017 . Available Lines of Credit As of October 1, 2017 and March 31, 2017 , the Company had available and undrawn, under all its lines of credit, $465,703 and $475,947 , respectively, including $152,628 and $142,872 , respectively, of uncommitted lines of credit as of October 1, 2017 and March 31, 2017

Retirement Plans

Retirement Plans	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Retirement Plans	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 October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Service cost $ — $ 91 $ 256 $ 223 Interest cost 167 170 444 467 Expected return on plan assets (120 ) (204 ) (557 ) (472 ) Amortization and deferral 80 132 360 253 Net periodic benefit cost $ 127 $ 189 $ 503 $ 471 United States Plans International Plans Six months ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Service cost $ — $ 182 $ 499 $ 446 Interest cost 334 340 876 961 Expected return on plan assets (240 ) (408 ) (1,105 ) (982 ) Amortization and deferral 159 264 711 518 Net periodic benefit cost $ 253 $ 378 $ 981 $ 943

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Stock-Based Compensation	Stock-Based Compensation As of October 1, 2017 , the Company maintains the 2017 Equity Incentive Plan, (“2017 EIP”). The 2017 EIP reserved 3,177,477 shares of common stock for the grant of various classes of nonqualified stock options, restricted stock units, market condition-based share units and other forms of equity-based compensation. The Company recognized stock-based compensation expense associated with its equity incentive plans of $4,293 for the second quarter of fiscal 2018 and $4,790 for the second quarter of fiscal 2017 . Stock-based compensation expense was $9,523 for the six months of fiscal 2018 and $9,857 for the six months of fiscal 2017 . The Company recognizes compensation expense using the straight-line method over the vesting period of the awards. During the six months of fiscal 2018 , the Company granted to non-employee directors 30,366 restricted stock units, pursuant to the 2017 EIP. During the six months of fiscal 2018 , the Company granted to management and other key employees 169,703 non-qualified stock options and 60,008 market condition-based share units that vest three years from the date of grant, and 160,313 restricted stock units that vest 25% each year over four years from the date of grant. Common stock activity during the six months of fiscal 2018 included the vesting of 148,567 restricted stock units and 142,426 market condition-based share units and the exercise of 56,744 stock options. As of October 1, 2017 , there were 557,313 non-qualified stock options, 640,792 restricted stock units and 353,726

Stockholders' Equity and Noncon

Stockholders' Equity and Noncontrolling Interests	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Stockholders' Equity and Noncontrolling Interests	Stockholders’ Equity and Noncontrolling Interests Common Stock The following demonstrates the change in the number of shares of common stock outstanding during the six months ended October 1, 2017 : Shares outstanding as of March 31, 2017 43,447,536 Purchase of treasury stock (1,540,093 ) Shares issued towards equity-based compensation plans, net of equity awards surrendered for option price and taxes 217,260 Shares outstanding as of October 1, 2017 42,124,703 Accelerated Share Repurchase During the second quarter of fiscal 2018 , the Company entered into an accelerated share repurchase agreement (“ASR”) with a major financial institution to repurchase up to $100,000 of its common stock. The Company prepaid $100,000 and received an initial delivery of 1,278,976 shares with a fair market value of approximately $80,000 . The ASR is accounted for as a treasury stock repurchase, reducing the weighted average number of basic and diluted shares outstanding by the 1,278,976 shares initially received, and as a forward contract indexed to the Company's own common shares to reflect the future settlement provisions. Because the maximum repurchase will be $100,000 , as of October 1, 2017 , $20,000 representing the difference between the fair value of shares delivered and the maximum notional amount of $100,000 , is accounted for as an equity instrument and is included in additional paid-in capital. The ASR is not accounted for as a derivative instrument. Additional shares may be delivered to the Company on or before January 5, 2018 (scheduled settlement date), subject to the provisions of the ASR. The total number of shares to be repurchased will be determined on final settlement, with any additional shares reacquired being based generally on the volume-weighted average price of the Company's ordinary shares, minus a discount, during the repurchase period. Treasury Stock During the six months ended October 1, 2017 , the Company also acquired 261,117 shares for $21,191 through open market purchases. At October 1, 2017 and March 31, 2017 , the Company held 12,463,367 and 10,923,274 shares as treasury stock, respectively. Accumulated Other Comprehensive Income ( “ AOCI ” ) The components of AOCI, net of tax, as of October 1, 2017 and March 31, 2017 , are as follows: March 31, 2017 Before Reclassifications Amounts Reclassified from AOCI October 1, 2017 Pension funded status adjustment $ (25,555 ) $ — $ 665 $ (24,890 ) Net unrealized gain (loss) on derivative instruments 1,975 (9 ) 625 2,591 Foreign currency translation adjustment (129,244 ) 72,817 — (56,427 ) Accumulated other comprehensive (loss) income $ (152,824 ) $ 72,808 $ 1,290 $ (78,726 ) The following table presents reclassifications from AOCI during the second quarter ended October 1, 2017 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net loss on cash flow hedging derivative instruments $ 2,959 Cost of goods sold Tax benefit (1,095 ) Net loss on derivative instruments, net of tax $ 1,864 Defined benefit pension costs: Prior service costs and deferrals $ 440 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (102 ) Net periodic benefit cost, net of tax $ 338 The following table presents reclassifications from AOCI during the second quarter ended October 2, 2016 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net gain on cash flow hedging derivative instruments $ (171 ) Cost of goods sold Tax expense 63 Net gain on derivative instruments, net of tax $ (108 ) Defined benefit pension costs: Prior service costs and deferrals $ 385 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (117 ) Net periodic benefit cost, net of tax $ 268 The following table presents reclassifications from AOCI during the six months ended October 1, 2017 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net loss on cash flow hedging derivative instruments $ 992 Cost of goods sold Tax benefit (367 ) Net loss on derivative instruments, net of tax $ 625 Defined benefit pension costs: Prior service costs and deferrals $ 870 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (205 ) Net periodic benefit cost, net of tax $ 665 The following table presents reclassifications from AOCI during the six months ended October 2, 2016 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net gain on cash flow hedging derivative instruments $ (1,050 ) Cost of goods sold Tax expense 387 Net gain on derivative instruments, net of tax $ (663 ) Defined benefit pension costs: Prior service costs and deferrals $ 782 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (233 ) Net periodic benefit cost, net of tax $ 549 The following demonstrates the change in equity attributable to EnerSys stockholders and nonredeemable noncontrolling interests during the six months ended October 1, 2017 : Equity Attributable to EnerSys Stockholders Nonredeemable Noncontrolling Interests Total Equity Balance as of March 31, 2017 $ 1,103,456 $ 4,913 $ 1,108,369 Total comprehensive income: Net earnings 91,423 50 91,473 Net unrealized gain on derivative instruments, net of tax 616 — 616 Pension funded status adjustment, net of tax 665 — 665 Foreign currency translation adjustment 72,817 31 72,848 Total other comprehensive gain, net of tax 74,098 31 74,129 Total comprehensive income 165,521 81 165,602 Other changes in equity: Purchase of treasury stock including ASR (121,191 ) — (121,191 ) Cash dividends - common stock ($0.35 per share) (14,967 ) — (14,967 ) Other, including activity related to equity awards 2,228 — 2,228 Balance as of October 1, 2017 $ 1,135,047 $ 4,994 $ 1,140,041

Earnings Per Share

Earnings Per Share	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Earnings Per Share	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 EnerSys stockholders. Quarter ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Net earnings attributable to EnerSys stockholders $ 43,222 $ 45,636 $ 91,423 $ 90,209 Weighted-average number of common shares outstanding: Basic 42,938,131 43,426,955 43,194,107 43,348,449 Dilutive effect of: Common shares from exercise and lapse of equity awards, net of shares assumed reacquired 389,230 522,588 551,111 541,229 Diluted weighted-average number of common shares outstanding 43,327,361 43,949,543 43,745,218 43,889,678 Basic earnings per common share attributable to EnerSys stockholders $ 1.01 $ 1.05 $ 2.12 $ 2.08 Diluted earnings per common share attributable to EnerSys stockholders $ 1.00 $ 1.04 $ 2.09 $ 2.06 Anti-dilutive equity awards not included in diluted weighted-average common shares 283,674 245,199 257,243 317,578

Business Segments

Business Segments	6 Months Ended
	Oct. 01, 2017
Disclosure Schedule Of Financial Data For Company Reportable Business Segments And Product Lines [Abstract]
Business Segments	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 Zug, 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 second quarter and six months ended October 1, 2017 and October 2, 2016 is shown below: Quarter ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Net sales by segment to unaffiliated customers Americas $ 341,504 $ 324,824 $ 696,107 $ 654,544 EMEA 197,856 180,566 396,933 377,696 Asia 77,929 70,658 146,874 144,411 Total net sales $ 617,289 $ 576,048 $ 1,239,914 $ 1,176,651 Net sales by product line Reserve power $ 292,238 $ 277,449 $ 597,415 $ 573,490 Motive power 325,051 298,599 642,499 603,161 Total net sales $ 617,289 $ 576,048 $ 1,239,914 $ 1,176,651 Intersegment sales Americas $ 8,979 $ 6,981 $ 16,216 $ 12,985 EMEA 38,563 21,937 67,380 44,100 Asia 5,178 8,088 10,311 11,785 Total intersegment sales (1) $ 52,720 $ 37,006 $ 93,907 $ 68,870 Operating earnings by segment Americas $ 44,029 $ 49,890 $ 97,690 $ 93,200 EMEA 17,555 16,997 31,094 36,833 Asia 4,182 3,574 7,426 7,757 Restructuring charges - Americas (285 ) — (285 ) (892 ) Inventory write-off relating to exit activities - EMEA — (2,659 ) — (2,659 ) Restructuring charges - EMEA (1,491 ) (4,547 ) (2,324 ) (4,816 ) Restructuring charges - Asia — (346 ) — (482 ) Total operating earnings (2) $ 63,990 $ 62,909 $ 133,601 $ 128,941 (1 ) Intersegment sales are presented on a cost-plus basis, which takes into consideration the effect of transfer prices between legal entities. (2 )

Subsequent Events

Subsequent Events	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Subsequent Events	Subsequent Events On November 2, 2017, the Board of Directors approved a quarterly cash dividend of $0.175 per share of common stock to be paid on December 29, 2017, to stockholders of record as of December 15, 2017. On November 8, 2017, the Company also announced the establishment of a new $100,000 stock repurchase authorization, with no expiration

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Oct. 01, 2017
Inventory Disclosure [Abstract]
Summary Of Inventories	Inventories, net consist of: October 1, 2017 March 31, 2017 Raw materials $ 96,587 $ 85,604 Work-in-process 138,812 107,177 Finished goods 187,109 167,913 Total $ 422,508 $ 360,694

Fair Value of Financial Instr23

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Oct. 01, 2017
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 October 1, 2017 and March 31, 2017 , and the basis for that measurement: Total Fair Value Measurement October 1, 2017 Quoted Price in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Lead forward contracts $ 3,356 $ — $ 3,356 $ — Foreign currency forward contracts (303 ) — (303 ) — Total derivatives $ 3,053 $ — $ 3,053 $ — Total Fair Value Measurement March 31, 2017 Quoted Price in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Lead forward contracts $ 1,163 $ — $ 1,163 $ — Foreign currency forward contracts (313 ) — (313 ) — Total derivatives $ 850 $ — $ 850 $ —
Carrying Amounts And Estimated Fair Values Of Company's Financial Instruments	The carrying amounts and estimated fair values of the Company’s derivatives and Notes at October 1, 2017 and March 31, 2017 were as follows: October 1, 2017 March 31, 2017 Carrying Amount Fair Value Carrying Amount Fair Value Financial assets: Derivatives (1) $ 3,356 $ 3,356 $ 1,163 $ 1,163 Financial liabilities: Notes (2) $ 300,000 $ 312,000 $ 300,000 $ 303,000 Derivatives (1) 303 303 313 313 (1) Represents lead and foreign currency forward contracts (see Note 4 for asset and liability positions of the lead and foreign currency forward contracts at October 1, 2017 and March 31, 2017 ). (2) The fair value amount of the Notes at October 1, 2017 and March 31, 2017 represent the trading value of the instruments.

Derivative Financial Instrume24

Derivative Financial Instruments (Tables)	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Fair Value of Derivative Instruments	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 October 1, 2017 and March 31, 2017 Derivatives and Hedging Activities Designated as Cash Flow Hedges Derivatives and Hedging Activities Not Designated as Hedging Instruments October 1, 2017 March 31, 2017 October 1, 2017 March 31, 2017 Prepaid and other current assets Lead forward contracts $ 3,356 $ 1,163 $ — $ — Foreign currency forward contracts — 11 — — Total assets $ 3,356 $ 1,174 $ — $ — Accrued expenses Foreign currency forward contracts $ 278 $ — $ 25 $ 324 Total liabilities $ 278 $ — $ 25 $ 324
The Effect Of Derivative Instruments On Consolidated Condensed Statements Of Income	The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the quarter ended October 1, 2017 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 forward contracts $ 3,896 Cost of goods sold $ (1,892 ) Foreign currency forward contracts (1,029 ) Cost of goods sold (1,067 ) Total $ 2,867 $ (2,959 ) Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ (36 ) Total $ (36 ) The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the quarter ended October 2, 2016 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 forward contracts $ 2,807 Cost of goods sold $ 217 Foreign currency forward contracts 150 Cost of goods sold (46 ) Total $ 2,957 $ 171 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ 125 Total $ 125 The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the six months ended October 1, 2017 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 forward contracts $ 3,082 Cost of goods sold $ (89 ) Foreign currency forward contracts (3,088 ) Cost of goods sold (903 ) Total $ (6 ) $ (992 ) Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ 12 Total $ 12 The Effect of Derivative Instruments on the Consolidated Condensed Statements of Income For the six months ended October 2, 2016 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 forward contracts $ 4,620 Cost of goods sold $ 1,276 Foreign currency forward contracts 278 Cost of goods sold (226 ) Total $ 4,898 $ 1,050 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivative Pretax Gain (Loss) Foreign currency forward contracts Other (income) expense, net $ (177 ) Total $ (177 )

Warranty (Tables)

Warranty (Tables)	6 Months Ended
	Oct. 01, 2017
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 Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Balance at beginning of period $ 46,677 $ 48,075 $ 46,116 $ 48,422 Current period provisions 3,717 5,611 6,808 10,847 Costs incurred (3,841 ) (5,883 ) (7,037 ) (8,242 ) Foreign currency translation adjustment 560 309 1,226 (2,915 ) Balance at end of period $ 47,113 $ 48,112 $ 47,113 $ 48,112

Restructuring (Tables)

Restructuring (Tables)	6 Months Ended
	Oct. 01, 2017
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, 2017 $ 2,668 $ 144 $ 2,812 Accrued 2,172 227 2,399 Costs incurred (2,310 ) (373 ) (2,683 ) Foreign currency impact 219 2 221 Balance as of October 1, 2017 $ 2,749 $ — $ 2,749

Debt (Tables)

Debt (Tables)	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Long-Term Debt And Capital Lease Obligations	The following summarizes the Company’s long-term debt as of October 1, 2017 and March 31, 2017 : October 1, 2017 March 31, 2017 Principal Unamortized Issuance Costs Principal Unamortized Issuance Costs 5.00% Senior Notes due 2023 $ 300,000 $ 3,434 $ 300,000 $ 3,746 2017 Credit Facility, due 2022 435,200 3,159 — — 2011 Credit Facility, due 2018 — — 292,500 1,145 $ 735,200 $ 6,593 $ 592,500 $ 4,891 Less: Unamortized issuance costs 6,593 4,891 Long-term debt, net of unamortized issuance costs $ 728,607 $ 587,609

Retirement Plans (Tables)

Retirement Plans (Tables)	6 Months Ended
	Oct. 01, 2017
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 October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Service cost $ — $ 91 $ 256 $ 223 Interest cost 167 170 444 467 Expected return on plan assets (120 ) (204 ) (557 ) (472 ) Amortization and deferral 80 132 360 253 Net periodic benefit cost $ 127 $ 189 $ 503 $ 471 United States Plans International Plans Six months ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Service cost $ — $ 182 $ 499 $ 446 Interest cost 334 340 876 961 Expected return on plan assets (240 ) (408 ) (1,105 ) (982 ) Amortization and deferral 159 264 711 518 Net periodic benefit cost $ 253 $ 378 $ 981 $ 943

Stockholders' Equity and Nonc29

Stockholders' Equity and Noncontrolling Interests (Tables)	6 Months Ended
	Oct. 01, 2017
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 six months ended October 1, 2017 : Shares outstanding as of March 31, 2017 43,447,536 Purchase of treasury stock (1,540,093 ) Shares issued towards equity-based compensation plans, net of equity awards surrendered for option price and taxes 217,260 Shares outstanding as of October 1, 2017 42,124,703
Components Of Accumulated Other Comprehensive Income	The components of AOCI, net of tax, as of October 1, 2017 and March 31, 2017 , are as follows: March 31, 2017 Before Reclassifications Amounts Reclassified from AOCI October 1, 2017 Pension funded status adjustment $ (25,555 ) $ — $ 665 $ (24,890 ) Net unrealized gain (loss) on derivative instruments 1,975 (9 ) 625 2,591 Foreign currency translation adjustment (129,244 ) 72,817 — (56,427 ) Accumulated other comprehensive (loss) income $ (152,824 ) $ 72,808 $ 1,290 $ (78,726 )
Reclassification from Accumulated Other Comprehensive Income	The following table presents reclassifications from AOCI during the second quarter ended October 1, 2017 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net loss on cash flow hedging derivative instruments $ 2,959 Cost of goods sold Tax benefit (1,095 ) Net loss on derivative instruments, net of tax $ 1,864 Defined benefit pension costs: Prior service costs and deferrals $ 440 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (102 ) Net periodic benefit cost, net of tax $ 338 The following table presents reclassifications from AOCI during the second quarter ended October 2, 2016 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net gain on cash flow hedging derivative instruments $ (171 ) Cost of goods sold Tax expense 63 Net gain on derivative instruments, net of tax $ (108 ) Defined benefit pension costs: Prior service costs and deferrals $ 385 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (117 ) Net periodic benefit cost, net of tax $ 268 The following table presents reclassifications from AOCI during the six months ended October 1, 2017 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net loss on cash flow hedging derivative instruments $ 992 Cost of goods sold Tax benefit (367 ) Net loss on derivative instruments, net of tax $ 625 Defined benefit pension costs: Prior service costs and deferrals $ 870 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (205 ) Net periodic benefit cost, net of tax $ 665 The following table presents reclassifications from AOCI during the six months ended October 2, 2016 : Components of AOCI Amounts Reclassified from AOCI Location of (Gain) Loss Recognized on Income Statement Derivatives in cash flow hedging relationships: Net gain on cash flow hedging derivative instruments $ (1,050 ) Cost of goods sold Tax expense 387 Net gain on derivative instruments, net of tax $ (663 ) Defined benefit pension costs: Prior service costs and deferrals $ 782 Net periodic benefit cost, included in cost of goods sold and operating expenses - See Note 10 Tax benefit (233 ) Net periodic benefit cost, net of tax $ 549
Equity Attributable To Parent And Noncontrolling Interests [Table Text Block]	The following demonstrates the change in equity attributable to EnerSys stockholders and nonredeemable noncontrolling interests during the six months ended October 1, 2017 : Equity Attributable to EnerSys Stockholders Nonredeemable Noncontrolling Interests Total Equity Balance as of March 31, 2017 $ 1,103,456 $ 4,913 $ 1,108,369 Total comprehensive income: Net earnings 91,423 50 91,473 Net unrealized gain on derivative instruments, net of tax 616 — 616 Pension funded status adjustment, net of tax 665 — 665 Foreign currency translation adjustment 72,817 31 72,848 Total other comprehensive gain, net of tax 74,098 31 74,129 Total comprehensive income 165,521 81 165,602 Other changes in equity: Purchase of treasury stock including ASR (121,191 ) — (121,191 ) Cash dividends - common stock ($0.35 per share) (14,967 ) — (14,967 ) Other, including activity related to equity awards 2,228 — 2,228 Balance as of October 1, 2017 $ 1,135,047 $ 4,994 $ 1,140,041

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Oct. 01, 2017
Text Block [Abstract]
Schedule of Weighted Average Number of Shares	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 EnerSys stockholders. Quarter ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Net earnings attributable to EnerSys stockholders $ 43,222 $ 45,636 $ 91,423 $ 90,209 Weighted-average number of common shares outstanding: Basic 42,938,131 43,426,955 43,194,107 43,348,449 Dilutive effect of: Common shares from exercise and lapse of equity awards, net of shares assumed reacquired 389,230 522,588 551,111 541,229 Diluted weighted-average number of common shares outstanding 43,327,361 43,949,543 43,745,218 43,889,678 Basic earnings per common share attributable to EnerSys stockholders $ 1.01 $ 1.05 $ 2.12 $ 2.08 Diluted earnings per common share attributable to EnerSys stockholders $ 1.00 $ 1.04 $ 2.09 $ 2.06 Anti-dilutive equity awards not included in diluted weighted-average common shares 283,674 245,199 257,243 317,578

Business Segments Business Segm

Business Segments Business Segments (Tables)	6 Months Ended
	Oct. 01, 2017
Segment Reporting [Abstract]
Selected Financial Data for Reportable Business Segments and Product Lines	Summarized financial information related to the Company's reportable segments for the second quarter and six months ended October 1, 2017 and October 2, 2016 is shown below: Quarter ended Six months ended October 1, 2017 October 2, 2016 October 1, 2017 October 2, 2016 Net sales by segment to unaffiliated customers Americas $ 341,504 $ 324,824 $ 696,107 $ 654,544 EMEA 197,856 180,566 396,933 377,696 Asia 77,929 70,658 146,874 144,411 Total net sales $ 617,289 $ 576,048 $ 1,239,914 $ 1,176,651 Net sales by product line Reserve power $ 292,238 $ 277,449 $ 597,415 $ 573,490 Motive power 325,051 298,599 642,499 603,161 Total net sales $ 617,289 $ 576,048 $ 1,239,914 $ 1,176,651 Intersegment sales Americas $ 8,979 $ 6,981 $ 16,216 $ 12,985 EMEA 38,563 21,937 67,380 44,100 Asia 5,178 8,088 10,311 11,785 Total intersegment sales (1) $ 52,720 $ 37,006 $ 93,907 $ 68,870 Operating earnings by segment Americas $ 44,029 $ 49,890 $ 97,690 $ 93,200 EMEA 17,555 16,997 31,094 36,833 Asia 4,182 3,574 7,426 7,757 Restructuring charges - Americas (285 ) — (285 ) (892 ) Inventory write-off relating to exit activities - EMEA — (2,659 ) — (2,659 ) Restructuring charges - EMEA (1,491 ) (4,547 ) (2,324 ) (4,816 ) Restructuring charges - Asia — (346 ) — (482 ) Total operating earnings (2) $ 63,990 $ 62,909 $ 133,601 $ 128,941 (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.

Basis of Presentation Basis of

Basis of Presentation Basis of Presentation (Details)	3 Months Ended
	Jul. 03, 2016USD ($)
Basis of Presentation [Abstract]
Excess tax benefits	$ 137

Inventories - (Details)

Inventories - (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 96,587	$ 85,604
Work-in-process	138,812	107,177
Finished goods	187,109	167,913
Total	$ 422,508	$ 360,694

Fair Value of Financial Instr34

Fair Value of Financial Instruments - Financial Assets and (Liabilities) (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	$ 3,053	$ 850
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	3,053	850
Lead forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	3,356	1,163
Lead forward contracts | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	3,356	1,163
Foreign currency forward contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative fair value	(303)	(313)
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	$ (303)	$ (313)

Fair Value of Financial Instr35

Fair Value of Financial Instruments - (Additional Information) (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017	Apr. 23, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Face value of trades, percentage	104.00%	101.00%
5.00% Senior Notes due 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate	5.00%		5.00%
Long-term debt	$ 300,000	$ 300,000	$ 300,000

Fair Value of Financial Instr36

Fair Value of Financial Instruments - Carrying Amounts and Estimated Fair Values (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	$ 3,356	$ 1,163
Notes	300,000	300,000
Derivative liability	303	313
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative asset	3,356	1,163
Notes	312,000	303,000
Derivative liability	$ 303	$ 313

Derivative Financial Instrume37

Derivative Financial Instruments - Location and Amounts of Derivative Fair Values (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017
Derivatives and Hedging Activities Designated as Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	$ 3,356	$ 1,174
Derivatives and Hedging Activities Designated as Cash Flow Hedges | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivatives liabilities, fair value	278	0
Derivatives and Hedging Activities Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	0	0
Derivatives and Hedging Activities Not Designated as Hedging Instruments | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivatives liabilities, fair value	25	324
Lead forward contracts | Derivatives and Hedging Activities Designated as Cash Flow Hedges | Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	3,356	1,163
Lead forward contracts | Derivatives and Hedging Activities Not Designated as Hedging Instruments | Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	0	0
Foreign currency forward contracts | Derivatives and Hedging Activities Designated as Cash Flow Hedges | Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	0	11
Foreign currency forward contracts | Derivatives and Hedging Activities Designated as Cash Flow Hedges | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivatives liabilities, fair value	278	0
Foreign currency forward contracts | Derivatives and Hedging Activities Not Designated as Hedging Instruments | Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Derivatives assets, fair value	0	0
Foreign currency forward contracts | Derivatives and Hedging Activities Not Designated as Hedging Instruments | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivatives liabilities, fair value	$ 25	$ 324

Derivative Financial Instrume38

Derivative Financial Instruments - Derivatives Designated as Cash Flow Hedges (Details) - Derivatives Designated as Cash Flow Hedges - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	$ 2,867	$ 2,957	$ (6)	$ 4,898
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	(2,959)	171	(992)	1,050
Lead forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	3,896	2,807	3,082	4,620
Lead forward contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	(1,892)	217	(89)	1,276
Foreign currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion)	(1,029)	150	(3,088)	278
Foreign currency forward contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ (1,067)	$ (46)	$ (903)	$ (226)

Derivative Financial Instrume39

Derivative Financial Instruments - Derivatives Not Designated as Hedging Instruments (Details) - Derivatives Not Designated as Hedging Instruments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	$ (36)	$ 125	$ 12	$ (177)
Foreign currency forward contracts | Other Income Expense
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	$ (36)	$ 125	$ 12	$ (177)

- Derivative Financial Instrume

- Derivative Financial Instruments (Additional Information) (Details) $ in Thousands, lb in Millions	6 Months Ended
	Oct. 01, 2017USD ($)lb	Mar. 31, 2017USD ($)lb
Cost of Sales
Derivatives, Fair Value [Line Items]
Foreign currency cash flow hedge loss to be reclassified during next 12 months	$ (4,102)
Lead forward contracts
Derivatives, Fair Value [Line Items]
Notional amount in pounds | lb	50.1	45
Fair value of hedges, net	$ 53,235	$ 46,550
Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional amount	45,116	30,751
Foreign currency forward contracts | Derivatives and Hedging Activities Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional amount	$ 14,740	$ 13,560
Maximum | Lead forward contracts
Derivatives, Fair Value [Line Items]
Derivative, remaining maturity	1 year

- (Additional Information) (Det

- (Additional Information) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Disclosure Income Taxes Additional Information [Abstract]
Effective income tax rates	21.70%	26.20%	21.20%	25.30%
Foreign income as a percentage or worldwide income			$ 0.63	$ 0.57
Foreign effective income tax rates			11.20%	14.50%
Tax rate of Swiss subsidiary			6.00%

Warranty - Analysis of Changes

Warranty - Analysis of Changes in the Liability (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Disclosure Analysis Of Changes In Liability For Product Warranties [Abstract]
Balance at beginning of period	$ 46,677	$ 48,075	$ 46,116	$ 48,422
Current period provisions	3,717	5,611	6,808	10,847
Costs incurred	(3,841)	(5,883)	(7,037)	(8,242)
Foreign currency translation adjustment	560	309	1,226	(2,915)
Balance at end of period	$ 47,113	$ 48,112	$ 47,113	$ 48,112

Commitments, Contingencies an43

Commitments, Contingencies and Litigation - (Additional Information) (Details) - USD ($) $ in Thousands	1 Months Ended			6 Months Ended	12 Months Ended
	Jul. 31, 2017	Jun. 30, 2017	Feb. 29, 2016	Oct. 01, 2017	Mar. 31, 2017
Commitments, Contingencies And Litigation [Line Items]
Reserves for anti-competition investigations				$ 2,022	$ 25,551
Provision for environmental liabilities				1,117	1,123
Belgium Anti-Competition Proceeding
Commitments, Contingencies And Litigation [Line Items]
Penalties paid relating to anti-competition investigations			$ 1,962
Reserves for anti-competition investigations				2,022	1,830
Germany Anti-Competition Proceeding
Commitments, Contingencies And Litigation [Line Items]
Penalties paid relating to anti-competition investigations		$ 14,811
Reserves for anti-competition investigations				0	13,463
Estimate of possible loss				11,415
Dutch Anti-Competition Proceeding
Commitments, Contingencies And Litigation [Line Items]
Penalties paid relating to anti-competition investigations	$ 11,229
Reserves for anti-competition investigations				$ 0	$ 10,258

Restructuring - Roll-forward of

Restructuring - Roll-forward of Restructuring Reserve (Details) $ in Thousands	6 Months Ended
	Oct. 01, 2017USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	$ 2,812
Accrued	2,399
Costs incurred	(2,683)
Foreign currency impact	221
Restructuring reserve, ending balance	2,749
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	2,668
Accrued	2,172
Costs incurred	(2,310)
Foreign currency impact	219
Restructuring reserve, ending balance	2,749
Other
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance	144
Accrued	227
Costs incurred	(373)
Foreign currency impact	2
Restructuring reserve, ending balance	$ 0

Restructuring - (Additional Inf

Restructuring - (Additional Information) (Details) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Oct. 01, 2017USD ($)Employee	Jul. 02, 2017USD ($)	Oct. 02, 2016USD ($)	Oct. 01, 2017USD ($)Employee	Oct. 02, 2016USD ($)	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges				$ (210)	$ (3,982)
Restructuring and other exit (credits)	$ 1,776		$ 4,893	2,609	$ 6,190
Restructuring costs incurred				2,683
Restructuring reserve	2,749			2,749		$ 2,812
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred				2,310
Restructuring reserve	2,749			2,749		2,668
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)	75
Loss on sale of building	$ 210
European Operations | Restructurings Related To Improving Efficiency Of Manufacturing Operations In Emea [Member]
Restructuring Cost and Reserve [Line Items]
Expected reduction in number of employees | Employee	130
Restructuring and other exit (credits)				85		1,251	$ 5,232
Restructuring costs incurred				348		3,037	$ 2,993
Restructuring reserve	$ 154			154
European Operations | Restructurings Related To Improving Efficiency Of Manufacturing Operations In Emea [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges				(6,600)
European Operations | Restructurings Related To Improving Efficiency Related to Motive Power Assembly and Distribution Center [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges	$ (4,500)
Expected reduction in number of employees | Employee	45
Restructuring and other exit (credits)				1,243		3,104
Restructuring costs incurred				1,350		749
Restructuring reserve	$ 2,380			2,380
Expected additional restructuring charges	155			155
European Operations | Restructurings Related To Improving Efficiency Related To Supply Chain And General Operations [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges				$ (2,800)
Expected reduction in number of employees | Employee				25
Restructuring and other exit (credits)				$ 996
Restructuring costs incurred				781
Restructuring reserve	215			215
Expected additional restructuring charges	$ 1,800			1,800
Asia | Restructurings Related To Manufacturing Facility in Jiangdu [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit (credits)				0		779
Restructuring costs incurred				$ 129		$ 648
Asia | Restructurings Related To Manufacturing Facility in Jiangdu [Member] | Cash Charges
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges		$ (779)

Debt - Long-term Debt Including

Debt - Long-term Debt Including Capital Lease Obligations (Details) - USD ($) $ in Thousands	Oct. 01, 2017	Mar. 31, 2017	Apr. 23, 2015
Debt Instrument [Line Items]
Debt and capital lease obligations	$ 735,200	$ 592,500
Unamortized Issuance Costs	6,593	4,891
Long-term debt, net of unamortized issuance costs	728,607	587,609
5.00% Senior Notes due 2023
Debt Instrument [Line Items]
Long-term debt	300,000	300,000	$ 300,000
Unamortized Issuance Costs	3,434	3,746
Secured Debt | Incremental Commitment Agreement | 2017 Credit Facility, due 2022
Debt Instrument [Line Items]
Incremental term loan commitment	435,200	0
Unamortized Issuance Costs	3,159	0
Secured Debt | Incremental Commitment Agreement | 2011 Credit Facility, due 2018
Debt Instrument [Line Items]
Incremental term loan commitment	0	292,500
Unamortized Issuance Costs	$ 0	$ 1,145

Debt - (Additional Information)

Debt - (Additional Information) (Details) - USD ($)	Aug. 04, 2017	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016	Aug. 03, 2017	Mar. 31, 2017	Apr. 23, 2015
Debt Instrument [Line Items]
Increase in borrowing capacity limit	$ 325,000,000
Company owned capital stock, percentage securing senior secured credit facility	65.00%
Short-term debt		$ 12,978,000		$ 12,978,000			$ 18,359,000
Short-term debt, weighted average interest rate		8.00%		8.00%			7.00%
Debt issuance costs	$ 2,677,000			$ 2,677,000	$ 0
Write off of debt issuance costs	301,000
Amortization expense relating to debt issuance costs and included in interest expense		$ 327,000	$ 347,000	674,000	$ 694,000
Deferred issuance costs, net of accumulated amortization		6,593,000		6,593,000			$ 4,891,000
5.00% Senior Notes due 2023
Debt Instrument [Line Items]
Long-term debt		$ 300,000,000		$ 300,000,000			300,000,000	$ 300,000,000
Interest rate		5.00%		5.00%				5.00%
Convertible Notes Payable
Debt Instrument [Line Items]
Available lines of credit		$ 465,703,000		$ 465,703,000			475,947,000
Stand by letters of credit		3,255,000		3,255,000			2,189,000
Outstanding amount		152,628,000		152,628,000			$ 142,872,000
2017 Credit Facility, due 2022 | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	600,000,000
Available lines of credit		285,200,000		285,200,000
2017 Credit Facility, due 2022 | Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	150,000,000
Available lines of credit		$ 150,000,000		$ 150,000,000
2011 Credit Facility, due 2018 | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity						$ 500,000,000
Available lines of credit	240,000,000
2011 Credit Facility, due 2018 | Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount						$ 150,000,000
Available lines of credit	$ 123,750,000
LIBOR | 2017 Revolver And 2017 Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
LIBOR | 2017 Revolver And 2017 Term Loan | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
LIBOR | 2017 Revolver And 2017 Term Loan | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Federal Funds Effective Rate | 2017 Revolver And 2017 Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Eurocurrency Base Rate | 2017 Revolver And 2017 Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Debt Instrument Quarterly Installments Beginning December 31, 2018 Through December 30, 2019
Debt Instrument [Line Items]
Debt instrument, periodic payment	$ 1,875,000
Debt Instrument Quarterly Installments Beginning December 31, 2019 Through December 30, 2020
Debt Instrument [Line Items]
Debt instrument, periodic payment	2,813,000
Debt Instrument Quarterly Installments Beginning December 31, 2020 Through September 29, 2022
Debt Instrument [Line Items]
Debt instrument, periodic payment	3,750,000
Debt Instrument Final Installments Payable On September 30, 2022
Debt Instrument [Line Items]
Debt instrument, periodic payment	$ 105,000,000

Retirement Plans -Net Periodic

Retirement Plans -Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
United States Pension Plans of US Entity, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 91	$ 0	$ 182
Interest cost	167	170	334	340
Expected return on plan assets	(120)	(204)	(240)	(408)
Amortization and deferral	80	132	159	264
Net periodic benefit cost	127	189	253	378
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	256	223	499	446
Interest cost	444	467	876	961
Expected return on plan assets	(557)	(472)	(1,105)	(982)
Amortization and deferral	360	253	711	518
Net periodic benefit cost	$ 503	$ 471	$ 981	$ 943

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants	3,177,477		3,177,477
Equity-based compensation expense	$ 4,293	$ 4,790	$ 9,523	$ 9,857
Stock options exercised (in shares)			56,744,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested restricted stock and restricted stock units (in shares)			148,567,000
Stock option grants outstanding (in shares)	640,792,000		640,792,000
Nonqualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option grants outstanding (in shares)	557,313,000		557,313,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested restricted stock and restricted stock units (in shares)			142,426,000
Stock option grants outstanding (in shares)	353,726,000		353,726,000
Non-employee Directors | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock unit grants during period (in shares)			30,366,000
Management | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock unit grants during period (in shares)			160,313,000
Percentage of restricted stock units granted, vested per year			25.00%
Vesting period			4 years
Management | Nonqualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)			169,703,000
Vesting period			3 years
Management | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock unit grants during period (in shares)			60,008,000
Vesting period			3 years

Stockholders' Equity and Nonc50

Stockholders' Equity and Noncontrolling Interests - Change in the Number of Shares of Common Stock Outstanding (Details)	6 Months Ended
	Oct. 01, 2017shares
Equity [Abstract]
Shares outstanding, beginning balance (in shares)	43,447,536
Purchase of treasury stock (in shares)	(1,540,093)
Shares issued towards equity-based compensation plans, net of equity awards surrendered for option price and taxes (in shares)	217,260
Shares outstanding, ending balance (in shares)	42,124,703

Stockholders' Equity and Nonc51

Stockholders' Equity and Noncontrolling Interests - Components of Accumulated Other Comprehensive Income (Details) $ in Thousands	6 Months Ended
	Oct. 01, 2017USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	$ 1,108,369
Ending balance	1,140,041
Pension funded status adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	25,555
Before Reclassifications	0
Amounts Reclassified from AOCI	(665)
Ending balance	24,890
Net unrealized gain (loss) on derivative instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	1,975
Before Reclassifications	9
Amounts Reclassified from AOCI	625
Ending balance	2,591
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	(129,244)
Before Reclassifications	(72,817)
Amounts Reclassified from AOCI	0
Ending balance	(56,427)
Accumulated other comprehensive (loss) income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning balance	(152,824)
Before Reclassifications	72,808
Amounts Reclassified from AOCI	1,290
Ending balance	$ (78,726)

Stockholders' Equity and Nonc52

Stockholders' Equity and Noncontrolling Interests - Reclassifications from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net loss on cash flow hedging derivative instruments	$ 457,415	$ 412,094	$ 916,943	$ 846,363
Derivatives in cash flow hedging relationships
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax expense (benefit)	(1,095)	63	(367)	387
Net of tax	1,864	(108)	625	(663)
Derivatives in cash flow hedging relationships | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net loss on cash flow hedging derivative instruments	2,959	(171)	992	(1,050)
Defined benefit pension costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service costs and deferrals	440	385	870	782
Tax expense (benefit)	(102)	(117)	(205)	(233)
Net of tax	$ 338	$ 268	$ 665	$ 549

Stockholders' Equity and Nonc53

Stockholders' Equity and Noncontrolling Interests - Noncontrolling Interests (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 4,913
Net earnings	$ 71	$ 2,843	(50)	$ 2,797
Pension funded status adjustment, net of tax	338	268	665	549
Total other comprehensive gain (loss), net of tax	32,138	3,198	74,129	(19,191)
Total comprehensive income	75,289	$ 45,991	165,602	68,221
Dividends paid to stockholders			(14,967)	(15,200)
Other, including activity related to equity awards			651	$ 5
Ending balance	$ 4,994		$ 4,994
Dividends declared (in dollars per share)	$ 0.175	$ 0.175	$ 0.35	$ 0.35
Equity Attributable to EnerSys Stockholders
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 1,103,456
Net earnings			91,423
Net unrealized gain on derivative instruments, net of tax			616
Pension funded status adjustment, net of tax			665
Foreign currency translation adjustment			72,817
Total other comprehensive gain (loss), net of tax			74,098
Total comprehensive income			165,521
Purchase of treasury stock including ASR			(121,191)
Dividends paid to stockholders			(14,967)
Other, including activity related to equity awards			2,228
Ending balance	$ 1,135,047		1,135,047
Nonredeemable Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			4,913
Net earnings			50
Net unrealized gain on derivative instruments, net of tax			0
Pension funded status adjustment, net of tax			0
Foreign currency translation adjustment			31
Total other comprehensive gain (loss), net of tax			31
Total comprehensive income			81
Purchase of treasury stock including ASR			0
Dividends paid to stockholders			0
Other, including activity related to equity awards			0
Ending balance	4,994		4,994
Total Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			1,108,369
Net earnings			91,473
Net unrealized gain on derivative instruments, net of tax			616
Pension funded status adjustment, net of tax			665
Foreign currency translation adjustment			72,848
Total other comprehensive gain (loss), net of tax			74,129
Total comprehensive income			165,602
Purchase of treasury stock including ASR			(121,191)
Dividends paid to stockholders			(14,967)
Other, including activity related to equity awards			2,228
Ending balance	$ 1,140,041		$ 1,140,041

Stockholders' Equity and Nonc54

Stockholders' Equity and Noncontrolling Interests - Additional Information (Details) - USD ($)	3 Months Ended	6 Months Ended
	Oct. 01, 2017	Oct. 01, 2017	Mar. 31, 2017
Class of Stock [Line Items]
Treasury stock purchased (in shares)		1,540,093
Treasury stock (in shares)	12,463,367	12,463,367	10,923,274
ASR Agreement
Class of Stock [Line Items]
Stock repurchase program, authorized amount	$ 100,000	$ 100,000
Stock repurchase program, amount prepaid	$ 100,000
Treasury stock purchased (in shares)	1,278,976
Fair market value of treasury stock purchased	$ 80,000
Difference between fair value of shares delivered and maximum notional amount	$ 20,000
Open Market Purchases
Class of Stock [Line Items]
Treasury stock purchased (in shares)		261,117
Treasury stock purchased, value		$ 21,191,000

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation from Basic to Diluted Average Common Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Oct. 01, 2017	Oct. 02, 2016
Earnings Per Share [Abstract]
Net earnings attributable to EnerSys stockholders	$ 43,222	$ 45,636	$ 91,423	$ 90,209
Basic weighted-average number of common shares outstanding (in shares)	42,938,131	43,426,955	43,194,107	43,348,449
Common shares from exercise and lapse of equity awards, net of shares assumed reacquired (in shares)	389,230	522,588	551,111	541,229
Diluted weighted-average number of common shares outstanding (in shares)	43,327,361	43,949,543	43,745,218	43,889,678
Basic earnings per common share attributable to EnerSys stockholders (in dollars per share)	$ 1.01	$ 1.05	$ 2.12	$ 2.08
Diluted earnings per common share attributable to EnerSys stockholders (in dollars per share)	$ 1	$ 1.04	$ 2.09	$ 2.06
Anti-dilutive equity awards not included in diluted weighted-average common shares (in shares)	283,674	245,199	257,243	317,578

Business Segments - (Details)

Business Segments - (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2017USD ($)	Oct. 02, 2016USD ($)	Oct. 01, 2017USD ($)segment	Oct. 02, 2016USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Net sales by segment to unaffiliated customers	$ 617,289	$ 576,048	$ 1,239,914	$ 1,176,651
Net sales by product line	617,289	576,048	1,239,914	1,176,651
Intersegment sales	52,720	37,006	93,907	68,870
Operating earnings by segment	63,990	62,909	133,601	128,941
Restructuring charges	(1,776)	(4,893)	(2,609)	(6,190)
Inventory write-off relating to exit activities - EMEA	0	(2,659)	0	(2,659)
Reserve power
Segment Reporting Information [Line Items]
Net sales by product line	292,238	277,449	597,415	573,490
Motive power
Segment Reporting Information [Line Items]
Net sales by product line	325,051	298,599	642,499	603,161
Americas
Segment Reporting Information [Line Items]
Net sales by segment to unaffiliated customers	341,504	324,824	696,107	654,544
Intersegment sales	8,979	6,981	16,216	12,985
Operating earnings by segment	44,029	49,890	97,690	93,200
Restructuring charges	(285)	0	(285)	(892)
Inventory write-off relating to exit activities - EMEA	0	(2,659)	0	(2,659)
Europe
Segment Reporting Information [Line Items]
Net sales by segment to unaffiliated customers	197,856	180,566	396,933	377,696
Intersegment sales	38,563	21,937	67,380	44,100
Operating earnings by segment	17,555	16,997	31,094	36,833
Restructuring charges	(1,491)	(4,547)	(2,324)	(4,816)
Asia
Segment Reporting Information [Line Items]
Net sales by segment to unaffiliated customers	77,929	70,658	146,874	144,411
Intersegment sales	5,178	8,088	10,311	11,785
Operating earnings by segment	4,182	3,574	7,426	7,757
Restructuring charges	$ 0	$ (346)	$ 0	$ (482)

Subsequent Events - (Details)

Subsequent Events - (Details) - Subsequent Event - USD ($)	Nov. 02, 2017	Nov. 08, 2017
Subsequent Event [Line Items]
Common stock dividends (in dollars per share)	$ 0.175
Stock repurchase program, authorized amount		$ 100,000