Income Taxes - Rate Reconciliation (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
Effective Income Tax Rate Reconciliation, Amount:
Tax at federal statutory rate									$ 34,537	$ 36,979	$ 38,928
State and local taxes, net									5,303	12,335	4,800
Effect of enacted changes in tax laws									0	(1,872)	68,747
(Decrease)/increase in uncertain tax positions									(2,427)	2,288	(2,277)
(Gain)/loss on company-owned life insurance									(1,662)	449	(1,916)
Nondeductible expense									1,938	1,808	912
Nondeductible executive compensation									(355)	2,135	1,360
Stock-based awards benefit									(6,184)	(1,795)	(517)
Deduction for foreign-derived intangible income									(2,625)	0	0
Research and experimentation credit									(5,672)	0	0
Other, net									1,641	(3,696)	(6,081)
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
Effective Income Tax Rate Reconciliation, Percent:
Tax at federal statutory rate (% of pre-tax)									21.00%	21.00%	35.00%
State and local taxes, net (% of pre-tax)									3.20%	7.00%	4.30%
Effect of enacted changes in tax laws (% of pre-tax)									0.00%	(1.00%)	61.80%
Reduction in uncertain tax positions (% of pre-tax)									(1.50%)	1.30%	(2.00%)
Loss/(gain) on Company-owned life insurance (% of pre-tax)									(1.00%)	0.20%	(1.70%)
Non deductible expense (% of pre-tax)									1.20%	1.00%	0.80%
Nondeductible executive compensation (% of pre-tax)									(0.20%)	1.20%	1.20%
Stock-based awards benefit (% of pre-tax)									(3.80%)	(1.00%)	(0.40%)
Deduction for foreign-derived intangible income (% of pre-tax)									(1.60%)	0.00%	0.00%
Research and experimentation credit (% of pre-tax)									(3.40%)	0.00%	0.00%
Other, net (% of pre-tax)									1.00%	(2.10%)	(5.50%)
Effective income tax rate									14.90%	27.60%	93.50%