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STOCK-BASED COMPENSATION - Non-Qualified Stock Option Award Activity (Details) - Original 2010 Plan - Stock Option [Member] - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Shares    
Outstanding (in shares) 21,541  
Exercised (in shares) (12,541)  
Outstanding (in shares) 9,000 21,541
Exercisable (in shares) 9,000 21,541
Weighted Average Exercise Price (in dollars per share)    
Outstanding (in dollars per share) $ 43.37  
Exercised (in dollars per share) 45.88  
Outstanding (in dollars per share) 39.87 $ 43.37
Exercisable (in dollars per share) $ 39.87 $ 43.37
Weighted Average Remaining Contractual Term    
Outstanding 2 years 6 months 21 days  
Exercisable 2 years 6 months 21 days 3 years 2 months 15 days
Stock-based compensation    
Aggregate Intrinsic Value, Outstanding (in dollars) $ 238,050  
Aggregate Intrinsic Value, Exercisable (in dollars) 238,050 $ 388,837
Total intrinsic value of options exercised 200  
Unrecognized compensation cost (in dollars) $ 0