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DEBT - Schedule of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Debt Instrument [Line Items]      
Outstanding borrowings $ 146,250 $ 150,000  
Less: debt issuance costs (2,540) (2,575) $ (2,575)
Total debt 143,710 147,425  
Less: current portion of long-term debt (15,000) (15,000)  
Long-term debt 128,710 132,425  
Commerzbank Line of Credit      
Debt Instrument [Line Items]      
Outstanding borrowings 0 0  
Revolving Credit Facility | Syndicated Credit Facility      
Debt Instrument [Line Items]      
Outstanding borrowings 0 0  
Secured Debt | Syndicated Credit Facility      
Debt Instrument [Line Items]      
Outstanding borrowings $ 146,250 $ 150,000