Income Taxes Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Income Tax Contingency
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns	$ 23,497
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns
Unrecognized Tax Benefits, Beginning Balance	28,848	$ 19,545	$ 21,224
Tax positions of current year, additions	3,874	8,251	306
Tax positions of prior years, additions	2,598	1,704	440
Tax positions of prior years, reductions	(7,553)	(295)	(2,126)
Settlements, reductions	(21)	(34)	(42)
Lapse of statute of limitations, reductions	(114)	(323)	(257)
Unrecognized Tax Benefits, Ending Balance	27,632	28,848	19,545
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	7,731
Unrecognized Tax Benefits, Interest on Income Taxes Expense	(12)	161	75
Unrecognized Tax Benefits, Income Tax Penalties Expense	(309)	(106)	$ 25
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	1,428	1,451
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 199	$ 509