Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Apr. 03, 2015
Deferred Tax Asset Valuation Allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 17,089	$ 15,550	$ 12,832
Charged (credited) to costs and expenses	639	1,539	2,718
Ending Balance	17,728	17,089	15,550
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	1,153	1,055	1,554
Charged (credited) to costs and expenses	7,139	5,885	3,822
Deductions	(6,822)	(5,787)	(4,321)
Ending Balance	$ 1,470	$ 1,153	$ 1,055