Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jul. 05, 2020	Dec. 29, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 100,091	$ 107,044
Current portion of operating lease liabilities	14,124	15,914
Operating lease liabilities	86,716	91,829
Total operating lease liabilities	100,840	107,743
Property and equipment	4,954	5,007
Accrued expenses	1,455	1,489
Other long-term liabilities	1,485	1,673
Total finance lease liabilities	$ 2,940	$ 3,162