Leases Components of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Lessor Lease Income
Sales-type leases, selling profit	$ 705	$ 182	$ 4,244	$ 1,379
Sales-type and direct-financing leases, interest income	7,786	7,296	22,861	21,804
Operating lease rental income	45,834	43,510	134,312	130,514
Variable lease income	16,612	15,211	47,878	42,920
Franchise rental income	62,446	58,721	182,190	173,434
Sublease income	46,102	43,122	134,597	126,653
Executory costs paid to lessor
Lessor Lease Income
Variable lease income	$ 10,087	$ 9,379	$ 30,156	$ 28,538