Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (129,845)	$ 3,203	$ (129,091)	$ 7,146
Other comprehensive income (loss)
Foreign currency translation adjustment	(2,062)	(5,953)	1,226	(5,833)
Pension
Actuarial gain (loss), net of taxes of ($3), $1, $0 and ($2)	(4)	1	1	(3)
Amounts reclassified into results of operations, net of taxes of $56, $28, $112 and $56	85	43	170	86
Derivative instruments
Net change in fair value of cash flow hedges, net of taxes of ($76), $33, ($137) and ($17)	(123)	53	(222)	(28)
Amounts reclassified into results of operations, net of taxes of $43, $24, $170 and $89	69	39	275	145
Other comprehensive income (loss)	(2,035)	(5,817)	1,450	(5,633)
Comprehensive income (loss)	$ (131,880)	$ (2,614)	$ (127,641)	$ 1,513