Future Minimum Lease Payments Under Operating and Finance Leases (Details) - USD ($) $ in Thousands	Jul. 02, 2021	Dec. 31, 2020
Operating Lease
2021 (remainder of year)	$ 4,163
2022	7,290
2023	5,978
2024	5,184
2025	4,970
Thereafter	23,180
Total minimum lease payments	50,765
Less: Interest	(12,087)
Present value of lease liabilities	38,678	$ 38,990
Finance Lease
2021 (remainder of year)	453
2022	907
2023	930
2024	954
2025	954
Thereafter	3,486
Total minimum lease payments	7,684
Less: Interest	(1,491)
Present value of lease liabilities	$ 6,193	$ 15,628