Leases Components of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Lessor Lease Income
Sales-type leases, selling profit (loss)	$ 182	$ (97)	$ 1,379	$ 1,874
Sales-type and direct-financing leases, interest income	7,296	7,240	21,804	19,045
Operating lease rental income	43,510	44,892	130,514	134,056
Variable lease income	15,211	15,026	42,920	42,875
Franchise rental income	58,721	59,918	173,434	176,931
Sublease income	43,122	44,821	126,653	130,763
Executory costs paid to lessor
Lessor Lease Income
Variable lease income	$ 9,379	$ 9,683	$ 28,538	$ 28,894

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable.

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Amount of interest income from net investment in sales-type and direct financing leases.

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Amount of profit (loss) for sales-type lease and (loss) for direct financing lease recognized at commencement.

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Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease payments from operating, direct financing, and sales-type leases, excluding amount included in measurement of lease receivable.

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