Income Taxes (Details 3) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2022
Deferred tax assets:
Tax credit carryforwards	$ 129,513	$ 142,374
Reserves and accruals	78,993	75,543
Intangible assets	506,398	538,424
Capitalized research and development expense for income tax purposes	242,465	149,625
Operating loss carryforwards	9,598	11,081
Deferred income	77,066	64,897
Capital loss carryforwards	16,483	16,777
Stock-based compensation costs	27,409	22,830
Depreciation and amortization	10,671	9,176
Investments	15,949	9,016
Lease liability	33,639	37,758
Prepaid expenses	3,253	14,699
Total deferred tax assets	1,151,437	1,092,200
Valuation allowance	(79,162)	(70,085)	$ (108,200)
Net deferred tax assets	1,072,275	1,022,115
Deferred tax liabilities:
Intangible assets	(83,308)	(82,971)
Undistributed foreign earnings	(64,371)	(51,394)
ROU assets	(33,639)	(37,758)
Investments	6,318	0
Other	(13,455)	(11,060)
Total deferred tax liabilities	(201,091)	(183,183)
Total net deferred tax assets	$ 871,184	$ 838,932