Leases - Lease Type and Classification (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 28, 2019
ASSETS
Finance lease, right-of-use assets	$ 26,680	$ 28,128
Operating lease, right-of-use assets	341,743	348,090
Total leased assets	368,423	376,218
Accumulated amortization	10,500	8,300
TIA treated as reduction of lease payments used to measure operating lease ROU assets	35,300	35,200
Deferred rent treated as reduction of lease payments used to measure operating lease ROU assets	16,500	15,000
TIA receivable netted to operating lease liabilities	4,400	5,900
LIABILITIES
Finance lease liability, current	3,293	3,259
Operating lease liability, current	55,363	51,937
Finance lease liabilities, non-current	29,300	30,037
Operating lease liabilities, non-current	328,453	331,769
Total lease liabilities	$ 416,409	$ 417,002