Future Minimum Lease Payments Under Operating and Finance Leases (Details) $ in Thousands	Mar. 29, 2019 USD ($)
Operating Lease
2019 (remainder of year)	$ 5,289
2020	5,712
2021	5,512
2022	4,938
2023	4,360
Thereafter	25,976
Total minimum lease payments	51,787
Less: Interest	(14,781)
Present value of lease liabilities	37,006
Finance Lease
2019 (remainder of year)	742
2020	979
2021	907
2022	907
2023	930
Thereafter	5,395
Total minimum lease payments	9,860
Less: Interest	(2,336)
Present value of lease liabilities	$ 7,524