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CAPITAL STOCK AND SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Aug. 10, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of Shares        
Outstanding, beginning balance (shares)   278,041    
Granted (shares)   40,788    
Exercise of stock options (in shares)   32,468    
Canceled, forfeited or expired (shares)   (12,388)    
Outstanding, ending balance (shares)   273,973 278,041  
Exercisable (shares)   144,534    
Weighted Average Exercise Price        
Outstanding, beginning balance (usd per share)   $ 111.27    
Granted (usd per share)   268.32    
Exercised (usd per share)   63.28    
Canceled, forfeited or expired (usd per share)   173.16    
Outstanding, ending balance (usd per share)   137.54 $ 111.27  
Exercisable (usd per share)   $ 97.33    
Weighted Average Contractual Life (Years)        
Outstanding, weighted average contractual life (years)   7 years 2 months 15 days 7 years 8 months 4 days  
Exercisable, weighted average contractual life (years)   6 years 5 months 8 days    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise of stock options (in shares)   32,468    
Payments Related to Tax Withholding for Share-based Compensation   $ 16,898 $ 54,493 $ 9,556
Executive Stock Option Exercise [Member]        
Number of Shares        
Exercise of stock options (in shares) 500,000      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Issuance/(cancellation) of non-vested stock (shares) 268,317      
Surrendered Shares In Shares 231,683      
Exercise of stock options (in shares) 500,000      
Tax benefit from stock option exercise     24,000  
Payments Related to Tax Withholding for Share-based Compensation     $ 40,400