Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 47,447	$ 43,151	$ 93,467	$ 91,473
Other comprehensive (loss) income:
Net unrealized (loss) gain on derivative instruments, net of tax	(6,179)	3,669	(5,174)	616
Pension funded status adjustment, net of tax	300	338	600	665
Foreign currency translation adjustment	(14,150)	28,131	(86,313)	72,848
Total other comprehensive (loss) gain, net of tax	(20,029)	32,138	(90,887)	74,129
Total comprehensive income	27,418	75,289	2,580	165,602
Comprehensive (loss) income attributable to noncontrolling interests	(200)	(6)	(539)	81
Comprehensive income attributable to EnerSys stockholders	$ 27,618	$ 75,295	$ 3,119	$ 165,521

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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