Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Jan. 01, 2011
Deferred Tax Assets:
Intangible assets	$ 70,314	$ 85,695
Reserves and accruals	77,325	96,782
Tax credit carryforwards	133,829	137,571
Capitalized research and development expenses for income tax purposes	40,510	48,167
Investments	7,339	13,124
Share-based compensation costs	20,661	20,980
Operating loss carryforwards	56,330	45,768
Deferred income	17,840	14,944
Capital Loss Carryforwards	23,737	6,391
Other	10,781	12,713
Total deferred tax assets	458,666	482,135
Valuation allowance	(375,864)	(374,740)
Net deferred tax assets	82,802	107,395
Deferred Tax Liabilities:
Undistributed foreign earnings	(5,584)	(15,561)
Deferred tax related to intangible assets acquired with Denali	(66,878)	(66,901)
Tax deferred income	0	(9,651)
Other	(6,700)	(8,920)
Total deferred tax liabilities	(79,162)	(101,033)
Total net deferred tax assets	$ 3,640	$ 6,362