Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2022	Mar. 31, 2021
Lessee, Lease, Description [Line Items]
Amortization of right-to-use assets	$ 18	$ 20
Interest on lease liabilities	13	15
Operating Lease, Cost	6,827	7,115
Short-term Lease, Cost	4	5
Variable Lease, Cost	253	229
Sublease Income	(1,128)	(796)
Total lease cost	5,987	6,588
Operating Expense [Member]
Lessee, Lease, Description [Line Items]
Total lease cost	5,829	6,231
General and Administrative Expense
Lessee, Lease, Description [Line Items]
Total lease cost	105	116
Depreciation and amortization [Member]
Lessee, Lease, Description [Line Items]
Total lease cost	18	20
Interest Expense
Lessee, Lease, Description [Line Items]
Total lease cost	13	15
Restructuring Charges [Member]
Lessee, Lease, Description [Line Items]
Total lease cost	22	206
Property Lease [Member]
Lessee, Lease, Description [Line Items]
Amortization of right-to-use assets	18	20
Interest on lease liabilities	12	15
Operating Lease, Cost	6,564	6,814
Variable Lease, Cost	136	122
Sublease Income	(1,128)	(796)
Total lease cost	5,602	6,175
Equipment Lease [Member]
Lessee, Lease, Description [Line Items]
Interest on lease liabilities	1
Operating Lease, Cost	263	301
Short-term Lease, Cost	4	5
Variable Lease, Cost	117	107
Total lease cost	$ 385	$ 413