Balance Sheet Components - Accounts Receivable, Net, Prepaid Expenses and Other Current Assets, Inventories, Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 27, 2014	Dec. 31, 2013
Accounts receivable, net
Accounts receivable	$ 87,627	$ 83,266
Less: allowances for doubtful accounts, returns and discounts	(7,690)	(8,214)
Accounts receivable, net	79,937	75,052
Inventories:
Raw materials	1,836	2,389
Work-in-process	718	976
Finished goods	27,616	33,561
Total inventories, net	30,170	36,926
Property and equipment, net:
Furniture and fixtures	8,644	8,227
Machinery and equipment	116,851	114,178
Leasehold improvements	8,334	7,888
Property, Plant and Equipment Gross, Total	133,829	130,293
Less: accumulated depreciation and amortization	(101,048)	(95,348)
Property and equipment, net	$ 32,781	$ 34,945