Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 30, 2017	Apr. 01, 2017
Components of accumulated other comprehensive income (loss)
Accumulated unrealized losses on available-for-sale securities, net of tax	$ (17,503)	$ (17,091)
Accumulated unrealized losses on hedging transactions, net of tax	1,419	661
Accumulated cumulative translation adjustment, net of tax	(5,419)	(8,251)
Accumulated other comprehensive loss	$ (21,503)	$ (24,681)