Accumulated Other Comprehensive Income (Loss) - Reclassification Out of AOCI By Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Apr. 03, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	$ 773,663	$ 676,695	$ 788,254
Other comprehensive loss before reclassifications	2,122	(3,434)
Amounts reclassified out of accumulated other comprehensive income	(100)	363
Net current-period other comprehensive income (loss)	2,022	(3,071)	(1,533)
Closing Balance	645,372	773,663	676,695
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	(6,785)	(3,714)	(2,181)
Net current-period other comprehensive income (loss)	2,022	(3,071)	(1,533)
Closing Balance	(4,763)	(6,785)	(3,714)
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	(6,043)	(4,001)
Other comprehensive loss before reclassifications	3,892	(2,042)
Amounts reclassified out of accumulated other comprehensive income	0	0
Net current-period other comprehensive income (loss)	3,892	(2,042)
Closing Balance	(2,151)	(6,043)	(4,001)
Unrealized gain or loss on available-for-sale investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	(807)	222
Other comprehensive loss before reclassifications	(1,770)	(1,392)
Amounts reclassified out of accumulated other comprehensive income	(100)	363
Net current-period other comprehensive income (loss)	(1,870)	(1,029)
Closing Balance	(2,677)	(807)	222
Pension adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Opening Balance	65	65
Other comprehensive loss before reclassifications	0	0
Amounts reclassified out of accumulated other comprehensive income	0	0
Net current-period other comprehensive income (loss)	0	0
Closing Balance	$ 65	$ 65	$ 65