Term and Revolving Loan - Schedule of Long-Term Debt (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, balance	$ 430,000,000	$ 460,000,000
Less discount and issuance costs	(34,018,000)	(31,717,000)
Long term debt, net of debt discount and issuance costs	395,982,000	428,283,000
Less current portion of long-term debt	(4,300,000)	(4,313,000)
Long-term debt, net of current portion, debt discount and issuance costs	391,682,000	423,970,000
Revolving credit facility
Debt Instrument [Line Items]
Long-term debt, balance	0	0
Term loan facility
Debt Instrument [Line Items]
Long-term debt, balance	$ 430,000,000	$ 460,000,000