Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 42,793	$ 39,768	$ 87,412	$ 87,702
Other comprehensive income (loss):
Net unrealized gain (loss) on derivative instruments, net of tax	1,758	(4,444)	2,428	(5,437)
Pension funded status adjustment, net of tax	268	315	549	638
Foreign currency translation adjustments	1,172	(28,202)	(22,168)	(7,655)
Total other comprehensive (loss) income, net of tax	3,198	(32,331)	(19,191)	(12,454)
Total comprehensive income	45,991	7,437	68,221	75,248
Comprehensive loss attributable to noncontrolling interests	(2,782)	(1,048)	(2,991)	(1,576)
Comprehensive income attributable to EnerSys stockholders	$ 48,773	$ 8,485	$ 71,212	$ 76,824