Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020	Dec. 31, 2020
Lessor, Lease, Description [Line Items]
Operating lease, cost	$ 2,002	$ 1,906
Operating lease, payments	2,061	1,863
Lease, cost	40	39
Operating Lease, Liability	$ 24,028		$ 26,230
Weighted average discount rate	3.90%		4.00%
Weighted average remaining lease term	4 years 10 months 24 days		5 years 1 month 6 days
Rental income	$ 0	$ 77
Contract termination costs
Lessor, Lease, Description [Line Items]
Operating Lease, Liability	$ 2,530		$ 2,877