Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Measured on a Recurring Basis - USD ($) $ in Thousands	Jul. 01, 2018	Apr. 01, 2018
Quoted Prices in Active Markets for Identical Assets (Level 1)
Cash Equivalents and Short-Term Investments:
US government treasuries and agencies securities	$ 60,288	$ 60,272
Money market funds	26,979	48,847
Asset-backed securities	0	0
Corporate bonds	0	0
International government bonds	0	0
Corporate commercial paper	0	0
Bank deposits	0	0
Repurchase agreement	0	0
Total assets measured at fair value	87,267	109,119
Significant Other Observable Inputs (Level 2)
Cash Equivalents and Short-Term Investments:
US government treasuries and agencies securities	0	0
Money market funds	0	0
Asset-backed securities	15,865	16,687
Corporate bonds	109,482	109,605
International government bonds	2,644	2,638
Corporate commercial paper	10,683	9,034
Bank deposits	41,456	45,080
Repurchase agreement	291	142
Total assets measured at fair value	180,421	183,186
Total
Cash Equivalents and Short-Term Investments:
US government treasuries and agencies securities	60,288	60,272
Money market funds	26,979	48,847
Asset-backed securities	15,865	16,687
Corporate bonds	109,482	109,605
International government bonds	2,644	2,638
Corporate commercial paper	10,683	9,034
Bank deposits	41,456	45,080
Repurchase agreement	291	142
Total assets measured at fair value	$ 267,688	$ 292,305