Income Taxes - Reconciliation of Provision for (Benefit from) Income Taxes to Amount Computed by Applying Statutory Federal Income Tax Rate to Income before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Apr. 03, 2015
Income Tax Disclosure [Abstract]
Tax provision at federal statutory rate	$ 8,885	$ 6,167	$ 18,808
State tax provision, net of federal benefit	1,681	1,197	4,014
Tax credits, net of valuation allowance	(15,121)	(16,016)	(14,055)
Non-deductible compensation	2,659	2,457	1,966
Non-deductible transaction costs	645	30	154
Non-deductible meals and entertainment	794	751	759
Stock-based compensation	886	551	478
Change in state effective tax rate	417	(354)	508
Foreign effective tax rate differential, net of valuation allowance	2,391	859	898
Other	380	185	297
Total provision for (benefit from) income taxes	$ 3,617	$ (4,173)	$ 13,827