Leases - Cash and Supplemental Noncash (Details) $ in Thousands	12 Months Ended
	Dec. 25, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$ 4,536
Operating cash flows from operating leases	26,329
Financing cash flows from finance leases	2,464
Right-of-use assets obtained in exchange for new finance lease liabilities	305
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 79,534