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Equity Incentive Program Equity Incentive Program - PSUs (Details) - Performance Shares [Member]
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2022
shares
Mar. 31, 2022
numberOfGrantees
Mar. 31, 2021
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
$ / shares
shares
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, Nonvested, Number         833,589 766,466
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period         294,935  
Vested (1)         (227,812)  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period         0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ / shares         $ 25.12 $ 21.28
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares         29.92  
Vested (1) | $ / shares         18.44  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value | $ / shares         $ 0  
Unrecognized compensation expense | $         $ 9.5  
Weighted average period for compensation expense to be recognized         1 year 1 month 6 days  
Fair value of SSARs that are exercisable | $         $ 3.2  
Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Incremental Increase of Initial Grant Value, Percentage         0.00%  
Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Incremental Increase of Initial Grant Value, Percentage         225.00%  
2018            
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       329,092    
Vested (1)       (190,544)    
Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected 3.9   9      
2019            
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   227,812        
Vested (1)   (150,811)        
Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected 2.4   8      
2020            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Payment Arrangement, Plan Modification, Number of Grantees Affected 4.7   8