Long-Term Debt - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 320,638	$ 310,000
Less current portion	7,000	7,000
Total long-term debt, less current portion	313,638	303,000
Less debt issuance costs	1,716	2,113
Total long-term debt, net of debt issuance costs	$ 311,922	$ 300,887
Weighted-average interest rate	3.59%	6.87%
Term loans
Debt Instrument [Line Items]
Long-term debt, gross	$ 295,638	$ 310,000
Revolving credit facility
Debt Instrument [Line Items]
Long-term debt, gross	25,000	0
Less debt issuance costs	$ 1,515	$ 1,894