Leases - Schedule of Operating Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Leases [Abstract]
Operating lease costs	$ 7,039	$ 6,818
Short term lease costs	4,734	4,951
Total lease costs	11,773	11,769
Cash paid for amounts included in the measurement of lease liabilities	$ 7,040	$ 6,703