Balance Sheet Components - Accounts Receivable, Net, Inventories, Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2013	Dec. 31, 2012
Accounts receivable, net
Accounts receivable	$ 95,595	$ 95,515
Less: allowances for doubtful accounts, returns and discounts	(9,347)	(9,595)
Accounts receivable, net	86,248	85,920
Inventories:
Raw materials	3,697	10,731
Work-in-process	995	4,347
Finished goods	39,689	49,192
Total inventories, net	44,381	64,270
Property and equipment, net:
Furniture and fixtures	8,200	7,856
Machinery and equipment	108,950	108,262
Leasehold improvements	7,549	7,612
Property, Plant and Equipment Gross, Total	124,699	123,730
Less: accumulated depreciation and amortization	(87,263)	(85,608)
Property and equipment, net	$ 37,436	$ 38,122