Leases Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020	Jul. 04, 2021	Jun. 28, 2020
Lease, Cost
Amortization of finance lease assets	$ 3,251	$ 3,338	$ 6,759	$ 6,524
Interest on finance lease liabilities	10,267	10,160	20,560	20,218
Total finance lease cost	13,518	13,498	27,319	26,742
Operating lease cost	23,012	23,969	46,373	45,134
Variable lease cost	16,583	13,848	31,771	28,218
Short-term lease cost	1,270	991	2,596	2,321
Total operating lease cost	40,865	38,808	80,740	75,673
Total lease cost	54,383	52,306	108,059	102,415
Franchise rental expense
Lease, Cost
Total operating lease cost	34,063	31,263	66,615	60,554
Cost of sales
Lease, Cost
Total operating lease cost	6,111	6,831	12,792	13,664
Executory costs paid by lessee
Lease, Cost
Variable lease cost	$ 10,087	$ 9,457	$ 20,150	$ 19,200