Leases Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Leases [Abstract]
Document Period End Date	Mar. 28, 2020
Operating Lease, Payments	$ 2,021	$ 2,020
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0	$ 52,767