Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Current tax expense/(benefit)
Federal									$ 16,283	$ 31,719	$ (252)
Foreign									823	705	458
State and local									3,146	10,172	350
Total current tax expense									20,252	42,596	556
Deferred tax expense/(benefit)
Federal									5,588	913	105,905
State and local									(1,346)	5,122	(2,505)
Total deferred tax expense									4,242	6,035	103,400
Income tax expense	$ 7,705	$ 6,070	$ 9,415	$ 1,304	$ 23,289	$ 10,092	$ 9,999	$ 5,251	24,494	48,631	$ 103,956
Operating loss carryforward, state and local	$ 1,600				$ 2,000				$ 1,600	$ 2,000
Maximum
Deferred tax expense/(benefit)
Operating loss carryforwards, remaining life									18 years