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Leases - Schedule of Components of Lease Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Operating lease cost:        
Fixed lease cost $ 12,040 $ 12,906 $ 37,181 $ 38,641
Variable lease cost 0 0 (4) 0
Total operating lease cost 12,040 12,906 37,177 38,641
Finance lease cost:        
Amortization of leased assets 42 132 148 350
Interest on lease liabilities 3 4 9 17
Total finance lease cost 45 136 157 367
Total lease cost $ 12,085 $ 13,042 $ 37,334 $ 39,008