Leases Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Finance Lease, Cost
Amortization of finance lease assets	$ 3,338	$ 1,631	$ 6,524	$ 4,748
Interest on finance lease liabilities	10,160	9,939	20,218	16,692
Total finance lease cost	13,498	11,570	26,742	21,440
Lease, Cost
Operating lease cost	23,969	19,086	45,134	43,729
Variable lease cost	13,848	15,371	28,218	29,475
Short-term lease cost	991	1,153	2,321	2,279
Total operating lease cost	38,808	35,610	75,673	75,483
Total lease cost	52,306	47,180	102,415	96,923
Franchise rental expense
Lease, Cost
Total operating lease cost	31,263	28,022	60,554	60,473
Cost of sales
Lease, Cost
Total operating lease cost	6,831	7,007	13,664	13,600
Executory costs paid by lessee
Lease, Cost
Variable lease cost	$ 9,457	$ 9,779	$ 19,200	$ 19,303

Amount of interest expense on finance lease liability.

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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Total cost of finance leases including amortization of finance lease assets and interest incurred on finance lease liabilities.

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Total cost of operating leases including operating lease cost, variable lease cost and short-term lease cost.

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