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DEBT - Components of Debt (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Total carrying amount $ 315,510 $ 366,984
Current Portion 89,251 71,491
Non-Current Portion 226,259 295,493
2019 Notes | Convertible Senior Notes    
Debt Instrument [Line Items]    
Long-term debt, gross 226,259 225,534
Discount and debt issuance costs 3,700 4,500
Term Loan    
Debt Instrument [Line Items]    
Long-term debt, gross 87,500 140,000
Current Portion 17,500  
Other    
Debt Instrument [Line Items]    
Long-term debt, gross $ 1,751 $ 1,450