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STOCK-BASED COMPENSATION - Schedules - Stock Options (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Aggregate Intrinsic Value      
Share price (in dollars per share) $ 122.60    
Stock Options      
Number of Options      
Outstanding at the beginning of the period (in shares) 924,710    
Granted (in shares) 71,397    
Exercised (in shares) (306,113)    
Forfeited (in shares) (13,063)    
Expired (in shares) (638)    
Outstanding at the end of the period (in shares) 676,293 924,710  
Options exercisable at the end of the period (in shares) 442,957    
Weighted Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 111.82    
Granted (in dollars per share) 241.19    
Exercised (in dollars per share) 7.30    
Forfeited (in dollars per share) 261.62    
Expired (in dollars per share) 304.85    
Outstanding at the end of the period (in dollars per share) 169.71 $ 111.82  
Options exercisable at the end of the period (in dollars per share) $ 113.35    
Weighted Average Remaining Contractual Term      
Outstanding at the end of the period (in years) 5 years 6 months 25 days    
Options exercisable at the end of the period (in years) 3 years 11 months 23 days    
Aggregate Intrinsic Value      
Outstanding at the end of the period $ 25,789,000    
Options exercisable at the end of the period $ 25,789,000    
Weighted average assumptions      
Dividend yield 0.00% 0.00% 0.00%
Expected volatility, minimum (percentage) 53.00% 52.00% 51.00%
Expected volatility, maximum (percentage) 59.00% 60.00% 55.00%
Risk-free interest rate, minimum (percentage) 0.59% 0.33% 1.46%
Risk-free interest rate, maximum (percentage) 1.15% 0.96% 2.55%
Dividends $ 0 $ 0 $ 0
Performance Options      
Number of Options      
Outstanding at the beginning of the period (in shares) 700,209    
Granted (in shares) 0    
Exercised (in shares) 0    
Forfeited (in shares) 0    
Expired (in shares) 0    
Outstanding at the end of the period (in shares) 700,209 700,209  
Options exercisable at the end of the period (in shares) 0    
Weighted Average Exercise Price      
Outstanding at the beginning of the period (in dollars per share) $ 236.01    
Granted (in dollars per share) 0    
Exercised (in dollars per share) 0    
Forfeited (in dollars per share) 0    
Expired (in dollars per share) 0    
Outstanding at the end of the period (in dollars per share) 236.01 $ 236.01  
Options exercisable at the end of the period (in dollars per share) $ 0    
Weighted Average Remaining Contractual Term      
Outstanding at the end of the period (in years) 6 years 9 months    
Options exercisable at the end of the period (in years) 0 years    
Aggregate Intrinsic Value      
Outstanding at the end of the period $ 0    
Options exercisable at the end of the period $ 0    
Weighted average assumptions      
Expected term (in years)   7 years 7 years
Dividend yield   0.00% 0.00%
Expected volatility rate (percentage)   51.00% 51.00%
Risk free rate (percentage)   1.03% 2.54%
Dividends   $ 0 $ 0
Minimum | Stock Options      
Weighted average assumptions      
Expected term (in years) 5 years 5 years 5 years
Maximum | Stock Options      
Weighted average assumptions      
Expected term (in years) 6 years 6 years 3 months 6 years 3 months