Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Measured on a Recurring Basis - USD ($) $ in Thousands	Dec. 30, 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		$ 60,272
Money market funds	$ 149,836	48,847
Asset-backed securities	0	0
Corporate bonds	0	0
International government bonds		0
Corporate commercial paper		0
Bank deposits	0	0
Repurchase agreement	0	0
Total assets measured at fair value	149,836	109,119
Significant Other Observable Inputs (Level 2)
Cash Equivalents and Short-Term Investments:
US government treasuries and agencies securities		0
Money market funds	0	0
Asset-backed securities	9,555	16,687
Corporate bonds	100,467	109,605
International government bonds		2,638
Corporate commercial paper		9,034
Bank deposits	72,737	45,080
Repurchase agreement	18,741	142
Total assets measured at fair value	201,500	183,186
Total
Cash Equivalents and Short-Term Investments:
US government treasuries and agencies securities		60,272
Money market funds	149,836	48,847
Asset-backed securities	9,555	16,687
Corporate bonds	100,467	109,605
International government bonds		2,638
Corporate commercial paper		9,034
Bank deposits	72,737	45,080
Repurchase agreement	18,741	142
Total assets measured at fair value	$ 351,336	$ 292,305

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