Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020
Leases
Operating cash flows from finance leases	$ 864	$ 435
Financing cash flows from finance leases	3,358	1,438
Operating cash flows from operating leases	28,830	27,965
Right-of-use assets obtained in exchange for new finance lease liabilities	9,190	1,056
Right-of-use assets obtained in exchange for new operating lease liabilities	52,462	18,421
Cash received from sublease income	8,728	$ 7,641
Corporate Headquarters Atlanta, Georgia
Leases
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 21,800