Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020	Dec. 31, 2020
Assets and Liabilities [Abstract]
Right of use assets	$ 110,083		$ 110,083		$ 102,440
Current lease liabilities	21,583		21,583		22,074
Long-term lease liabilities	94,064		94,064		86,220
Total lease liabilities	115,647		115,647		108,294
Lease expense [Abstract]
Operating lease expense	6,170	$ 5,898	18,570	$ 17,310
Short-term lease expense	691	260	1,444	679
Variable lease expense	97	11	290	40
Total lease expense	$ 6,958	$ 6,169	20,304	18,029
Cash paid for operating leases			$ 18,000	$ 18,703
Weighted-average remaining lease term - operating leases	9 years 3 months 18 days		9 years 3 months 18 days
Weighted-average discount rate - operating leases	5.60%		5.60%
Undiscounted future lease payments for operating lease liabilities [Abstract]
2021	$ 5,692		$ 5,692
2022	21,305		21,305
2023	19,061		19,061
2024	16,745		16,745
2025	15,255		15,255
Thereafter	71,276		71,276
Building and Improvements [Member]
Assets and Liabilities [Abstract]
Right of use assets	105,072		105,072		97,429
Current lease liabilities	18,944		18,944		19,370
Long-term lease liabilities	91,744		91,744		83,926
Machinery and Equipment [Member]
Assets and Liabilities [Abstract]
Right of use assets	5,011		5,011		5,011
Current lease liabilities	2,639		2,639		2,704
Long-term lease liabilities	$ 2,320		$ 2,320		$ 2,294