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Leases Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019
Leases [Abstract]
Operating lease cost	$ 67,320	$ 75,496
Finance lease cost:
Amortization of right of use assets	845	793
Interest on lease liabilities	534	544
Total finance lease cost	1,379	1,337
Variable lease cost	24,482	29,300
Total lease costs	$ 93,181	$ 106,133

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- Definition

Finance Lease, Cost

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- Definition

Amount of interest expense on finance lease liability.

+ References

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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