Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Loss and credit carryforwards	$ 221,598	$ 35,509
Operating loss carryforwards, decrease	$ 186,089
Effective income tax tate reconciliation, at federal statutory income tax rate, percent	21.00%	21.00%	21.00%
Tax cuts And jobs act Of 2017 provisional income tax expense benefit increase	$ 40,650
Deferred tax assets, valuation allowance	174,185	$ 33,260
Valuation allowance, deferred tax asset, increase (decrease), amount	140,925
US state income taxes, tax cuts and jobs act of 2017	1,163
Unrecognized tax benefits	67,823	36,651	$ 46,074	$ 84,244
Unrecognized tax benefits that would impact effective tax rate	57,000	36,000	45,000
Income taxes recognized potential interest and penalties	3,652	1,766	3,101
Unrecognized tax benefits, income tax penalties and interest accrued	11,596	$ 5,547	$ 4,200
Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	5,000
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	$ 13,000