Balance Sheet Components - Accounts Receivable, Net, Inventories, Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2013	Dec. 31, 2012
Accounts receivable, net
Accounts receivable	$ 94,283	$ 95,515
Less: allowances for doubtful accounts, returns and discounts	(9,214)	(9,595)
Accounts receivable, net	85,069	85,920
Inventories:
Raw materials	3,188	10,731
Work-in-process	1,378	4,347
Finished goods	35,803	49,192
Total inventories, net	40,369	64,270
Property and equipment, net:
Furniture and fixtures	8,104	7,856
Machinery and equipment	111,182	108,262
Leasehold improvements	7,686	7,612
Property, Plant and Equipment Gross, Total	126,972	123,730
Less: accumulated depreciation and amortization	(91,421)	(85,608)
Property and equipment, net	$ 35,551	$ 38,122