Long-Term Debt - Summary (Details) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 352,638	$ 310,000
Less current portion	7,000	7,000
Total long-term debt, less current portion	345,638	303,000
Less debt issuance costs - term loans	2,013	2,113
Total long-term debt, net of debt issuance costs - term loans	$ 343,625	$ 300,887
Weighted-average interest rate (percent)	4.49%	6.87%
Term loans
Debt Instrument [Line Items]
Long-term debt	$ 302,638	$ 310,000
Revolving credit facility
Debt Instrument [Line Items]
Long-term debt	50,000	0
Less debt issuance costs - term loans	$ 1,799	$ 1,894