CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Jun. 28, 2015	Jun. 29, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 38,158	$ 21,843
Other comprehensive income (loss), net of taxes:
Currency translation adjustments, net of tax	810	330
Change in net unrealized gain (loss) on investments, net of tax	(910)	431
Actuarial loss on post-employment and post-retirement benefit plans, net of tax	(146)	(2)
Total other comprehensive income (loss)	(246)	759
Comprehensive income	$ 37,912	$ 22,602