Leases - Other Information (Details) $ in Thousands	6 Months Ended
	Jun. 25, 2020 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Financing cash flows from finance leases	$ 805
Operating cash flows from finance leases	531
Operating cash flows from operating leases	6,413
Right of use assets obtained in exchange for new lease obligations:
Finance lease liabilities	164
Operating lease liabilities	$ 9,630