Accumulated Other Comprehensive Income (Loss) - Reclassification Out of AOCI By Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 02, 2017	Apr. 03, 2016	Mar. 29, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	$ 676,695	$ 788,254	$ 733,855
Other comprehensive loss before reclassifications	(3,434)	(1,263)
Amounts reclassified out of accumulated other comprehensive income (AOCI)	363	(270)	(179)
Net current-period other comprehensive income (loss)	(3,071)	(1,533)	(3,790)
Closing Balance	773,663	676,695	788,254
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	(3,714)	(2,181)	1,609
Net current-period other comprehensive income (loss)	(3,071)	(1,533)	(3,790)
Closing Balance	(6,785)	(3,714)	(2,181)
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	(4,001)	(3,721)
Other comprehensive loss before reclassifications	(2,042)	(280)
Amounts reclassified out of accumulated other comprehensive income (AOCI)	0	0
Net current-period other comprehensive income (loss)	(2,042)	(280)
Closing Balance	(6,043)	(4,001)	(3,721)
Unrealized gain or loss on available-for-sale investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	222	860
Other comprehensive loss before reclassifications	(1,392)	(983)
Amounts reclassified out of accumulated other comprehensive income (AOCI)	363	345
Net current-period other comprehensive income (loss)	(1,029)	(638)
Closing Balance	(807)	222	860
Pension adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	65	680
Other comprehensive loss before reclassifications	0	0
Amounts reclassified out of accumulated other comprehensive income (AOCI)	0	(615)
Net current-period other comprehensive income (loss)	0	(615)
Closing Balance	$ 65	$ 65	$ 680