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DEBT - Convertible Senior Notes and Capped Call Options (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2022
Jan. 12, 2021
$ / shares
Jan. 07, 2021
USD ($)
Sep. 30, 2022
USD ($)
$ / shares
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
$ / shares
Sep. 30, 2021
USD ($)
Debt Instrument [Line Items]              
Amortization of debt issuance costs           $ 4,238 $ 3,239
Share price (in dollars per share) | $ / shares   $ 8.72          
1.50% Convertible Senior Notes | Convertible notes              
Debt Instrument [Line Items]              
Debt instrument, face amount     $ 287,500        
Stated interest rate     1.50%        
Proceeds from convertible debt     $ 280,000        
Interest on convertible debt       $ 1,100 $ 1,100 3,200 3,100
Debt issuance costs     $ 7,600        
Amortization of debt issuance costs       $ 400 $ 400 $ 1,100 $ 1,100
Debt instrument, effective interest rate       2.00% 2.00% 2.00% 2.00%
Debt instrument, conversion ratio 0.0837764 0.0834028          
Conversion price, debt instruments (in dollars per share) | $ / shares   $ 11.99          
Conversion price, premium percentage   37.50%          
Debt instrument convertible strike price of capped call transactions (in dollars per share) | $ / shares   $ 15.26   $ 15.19   $ 15.19  
Debt instrument convertible strike price of capped call transactions premium percentage   75.00%          
1.50% Convertible Senior Notes | Convertible notes | Maximum              
Debt Instrument [Line Items]              
Debt instrument, conversion ratio   0.1146788