Post-effective amendment to a registration statement that is not immediately effective upon filing

DEBT - Components of Debt (Details)

v3.21.1
DEBT - Components of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]      
Long-term debt, gross   $ 184,355  
Less: current portion $ (3,750) (7,000) $ 0
Less: unamortized debt issuance costs (10,993) (4,693) 0
Long-term debt 385,257 172,662 0
Secured Debt | Senior Secured First Lien Term Loan Facility      
Debt Instrument [Line Items]      
Long-term debt, gross   136,500 0
Revolving Credit Facility | First Lien Revolving Credit Facility      
Debt Instrument [Line Items]      
Long-term debt, gross $ 25,000 $ 47,855 $ 0