Income Taxes Income Taxes Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	35.00%
Income tax provision at the U.S. federal statutory rate	$ (36,011)	$ (120,732)	$ (35,357)
State income tax provision, net of U.S. federal income tax effect	(6,470)	(221)	(6,451)
Federal rate change	0	0	164,893
Prior years' tax matters	6,135	(9,970)	15,964
Excess federal tax benefits from share-based compensation	5,841	10,250	5,196
Domestic tax planning initiatives	0	0	4,282
Foreign and U.S. tax effects of foreign operations	250	(856)	2,408
Valuation allowances	(2,833)	5,120	(35,895)
Non-deductible goodwill	0	(41)	(15,458)
Transition tax	0	0	(4,446)
Unrepatriated earnings	(402)	(326)	(1,801)
Non-deductible expenses and other	(1,051)	1,975	(325)
Income tax (provision) benefit	(34,541)	(114,801)	93,010
Current State and Local Tax Expense (Benefit)	6,093	2,661	4,055
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 3,008	(5,120)	$ 35,895
Tax Act
Effective Income Tax Rate Reconciliation
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%		35.00%
Federal rate change		(2,426)	$ 164,893
Prior years' tax matters		(9,542)
Transition tax			(4,446)
Unrepatriated earnings			(1,801)
Income tax (provision) benefit		(2,159)	140,379
Nondeductible expense related to certain executive compensation		(991)
Current State and Local Tax Expense (Benefit)		28
Tax Credit, Foreign, Amount		1,286
Tax Credit Carryforward, Valuation Allowance			15,962
Other Tax Expense (Benefit)			2,305
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ (7,535)
Prior Year Tax Matters
Effective Income Tax Rate Reconciliation
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount			13,667
Deferred Tax Assets, Net			$ 16,643