Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Summary of income tax reconciliation
Provision computed at federal statutory income tax rate	$ 79,042	$ 110,266	$ 83,003
State and local income tax, net of federal tax effect	15,540	5,867	5,534
Foreign income tax rate differential	(37,031)	(65,296)	(36,098)
Deemed repatriation transition tax	(1,409)	67,188	0
Remeasurement of U.S. deferred tax assets and liabilities	0	25,200	0
U.S. tax on foreign entities	28,846	0	0
Stock-based compensation	(13,539)	(24,455)	(13,132)
Change in deferred tax asset valuation allowance	13,234	4,689	1,243
Tax credits	(72,815)	(26,789)	(39,765)
Repatriation of foreign earnings	0	0	25,145
Non-deductible research and development expense	4,700	0	0
Tax effects of intra-entity transfer of assets	79	(8,450)	(7,661)
Domestic production activity deduction	0	(2,474)	(2,826)
Withholding taxes	11,535	11,225	9,870
Tax settlements, foreign	0	3,086	5,620
Increase in unrecognized tax benefits not included in tax settlements	(1,545)	4,054	614
Other	3,976	6,834	2,520
Total provision for income taxes	$ 30,613	$ 110,945	$ 34,067
Effective tax rate	8.00%	35.00%	14.00%