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Common Stock COMMON STOCK Restricted Stock - Market Based Awards (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Feb. 17, 2022
Dec. 31, 2021
Jan. 14, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock Repurchase Program, Authorized Amount     $ 1,250.0   $ 525.0
Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Shares Payout Range 0.00%        
Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Shares Payout Range 250.00%        
Restricted Stock - Market Based Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 2 years 10 months 24 days 2 years 10 months 24 days      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.70% 0.20%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 86.30% 84.60%      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 541,327     439,229  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 55.40     $ 43.21  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 107.85 $ 54.01      
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 19.5        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 1 year 6 months        
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 102,098        
Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 1,055,532     1,165,187  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.51     $ 25.33  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 57.57 $ 28.75      
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount $ 21.8        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition 1 year 8 months 12 days        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 196,336        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 28.76        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (5,730)        
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 92,411        
Restricted Stock - Market Based Awards multiplier          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 43.10        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 241,183        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 43.10        
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 241,183