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SUBSEQUENT EVENTS (Details)
$ / shares in Units, $ in Thousands
Feb. 10, 2023
USD ($)
$ / shares
Feb. 13, 2020
USD ($)
$ / shares
Convertible senior notes    
SUBSEQUENT EVENTS    
Original principal amount   $ 143,750
Interest rate (as a percent)   2.625%
Initial conversion rate   34.2618
Initial conversion price (in dollars per share) | $ / shares   $ 29.19
Subsequent Event | 2029 Convertible Notes    
SUBSEQUENT EVENTS    
Original principal amount $ 241,500  
Interest rate (as a percent) 2.875%  
Principal amount of notes converted $ 31,500  
Principal amount for conversion into stock $ 1,000  
Initial conversion rate 27.3553  
Initial conversion price (in dollars per share) | $ / shares $ 36.56  
Aggregate principal amount of notes repurchased $ 117,400  
Repurchased amount in cash $ 140,100  
Subsequent Event | Convertible senior notes    
SUBSEQUENT EVENTS    
Interest rate (as a percent) 2.625%