Stockholders' Equity and Noncontrolling Interests - (Other Disclosures) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jul. 03, 2022	Jul. 04, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 1,493,275	$ 1,543,576
Stock-based compensation	5,330	3,659
Exercise of stock options	1	387
Shares issued under equity awards (taxes paid related to net share settlement of equity awards), net	(633)	(4,803)
Purchase of common stock	(22,907)	(31,512)
Other	199	214
Net earnings	30,978	43,929
Dividends	(7,108)	(7,435)
Dissolution of joint venture		(47)
Other comprehensive income:
Pension funded status adjustment, net of tax	89	240
Net unrealized gain (loss) on derivative instruments (net of tax)	(8,234)	3,897
Foreign currency translation adjustment	(52,220)	15,321
Ending balance	$ 1,438,770	$ 1,567,426
Dividends per common share (in dollars per share)	$ 0.175	$ 0.175
Pension funded status adjustment, tax benefit (expense)	$ 34	$ 68
Net unrealized gain (loss) on derivative instrument, income tax expense (benefit)	(2,514)	1,187
Total EnerSys Stockholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,489,373	1,539,755
Stock-based compensation	5,330	3,659
Exercise of stock options	1	387
Shares issued under equity awards (taxes paid related to net share settlement of equity awards), net	(633)	(4,803)
Purchase of common stock	(22,907)	(31,512)
Other	199	214
Net earnings	30,978	43,929
Dividends	(7,108)	(7,435)
Other comprehensive income:
Pension funded status adjustment, net of tax	89	240
Net unrealized gain (loss) on derivative instruments (net of tax)	(8,234)	3,897
Foreign currency translation adjustment	(52,010)	15,272
Ending balance	1,435,078	1,563,603
Preferred Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0	0
Other comprehensive income:
Ending balance	0	0
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	557	555
Exercise of stock options	1	1
Other comprehensive income:
Ending balance	558	556
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	571,464	554,168
Stock-based compensation	5,330	3,659
Exercise of stock options		386
Shares issued under equity awards (taxes paid related to net share settlement of equity awards), net	(633)	(4,803)
Other	(41)	44
Dividends	174	173
Other comprehensive income:
Ending balance	576,294	553,627
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(719,119)	(563,481)
Purchase of common stock	(22,907)	(31,512)
Other	240	170
Other comprehensive income:
Ending balance	(741,786)	(594,823)
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,783,586	1,669,751
Net earnings	30,978	43,929
Dividends	(7,282)	(7,608)
Other comprehensive income:
Ending balance	1,807,282	1,706,072
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(143,495)	(115,883)
Other comprehensive income:
Pension funded status adjustment, net of tax	89	240
Net unrealized gain (loss) on derivative instruments (net of tax)	(8,234)	3,897
Foreign currency translation adjustment	(52,010)	15,272
Ending balance	(203,650)	(96,474)
Contra-Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(3,620)	(5,355)
Other comprehensive income:
Ending balance	(3,620)	(5,355)
Non- redeemable Non- Controlling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	3,902	3,821
Dissolution of joint venture		(47)
Other comprehensive income:
Foreign currency translation adjustment	(210)	49
Ending balance	$ 3,692	$ 3,823