Balance Sheet Details - Details of Selected Balance Sheet Items (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 29, 2013	Dec. 29, 2012
Inventory
Raw materials	$ 9,792	$ 13,003
Work in process	41,048	57,281
Finished goods	70,477	57,525
Total	121,317	127,809
Property, plant and equipment, net:
Property, plant and equipment	207,096	197,569
Less accumulated depreciation and amortization	(128,705)	(117,226)
Total	78,391	80,343
Accrued expenses:
Loss contingency related to non-cancelable purchase commitments	5,525	5,401
Professional and other consulting fees	1,605	3,703
Taxes payable	1,707	3,588
Royalties	1,150	1,516
Accrued rebate and customer prepay liability	611	1,284
Other accrued expenses	7,623	9,991
Total	18,221	25,483
Computer Hardware [Member]
Property, plant and equipment, net:
Property, plant and equipment	8,920	9,024
Computer Software [Member]
Property, plant and equipment, net:
Property, plant and equipment	16,296	15,834
Laboratory and Manufacturing Equipment [Member]
Property, plant and equipment, net:
Property, plant and equipment	133,973	120,543
Furniture and Fixtures [Member]
Property, plant and equipment, net:
Property, plant and equipment	1,345	1,285
Leasehold Improvements [Member]
Property, plant and equipment, net:
Property, plant and equipment	34,566	33,370
Construction in Progress [Member]
Property, plant and equipment, net:
Property, plant and equipment	$ 11,996	$ 17,513