Schedule II Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 1,186	$ 1,196	$ 1,446
Additions: Charged to Costs and Expenses or Revenues	114	23	(182)
Deductions: Amounts Written Off, Net of Recoveries	3	33	68
Balance at End of Year	1,297	1,186	1,196
Sales returns and allowances [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	3,873	4,747	4,861
Additions: Charged to Costs and Expenses or Revenues	23,597	17,225	31,653
Deductions: Amounts Written Off, Net of Recoveries	21,216	18,099	31,767
Balance at End of Year	$ 6,254	$ 3,873	$ 4,747