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Equity-Based Incentive Plans (2015 Equity Incentive Plan ) (Details)
1 Months Ended 12 Months Ended
May 31, 2019
shares
Dec. 31, 2021
$ / shares
shares
Dec. 31, 2020
shares
Dec. 31, 2019
shares
May 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share Based Compensation Arrangement By Share Based Payment Award Retirement Eligible Age For Vesting Of Awards   59 years 6 months      
Performance/Service period one          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   100.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   2 years      
Deferred Stock Units (DSUs) [Member]          
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   25,000 52,000 54,000  
Stock Appreciation Rights (SARs) [Member]          
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   171,200 325,500 300,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested And Vested, Number   447,100      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Intrinsic Value, Amount Per Share | $ / shares   $ 35.52      
Restricted Stock Units (RSUs)          
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   627,973 1,017,518 1,038,812  
Stock Options [Member]          
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 And Vested, Number   0      
Unrestricted Stock Awards [Member]          
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 And Vested, Number   0      
Equity Incentive 2015 Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized         12,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 8,000,000.0        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   4,200,000      
Equity Incentive 2015 Plan [Member] | Stock Options And Stock Appreciation Rights [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share Based Compensation Arrangement By Share Based Payment Award Share Limit Against Which Full Value Awards Will Be Counted   1      
Equity Incentive 2015 Plan [Member] | Restricted Stock Units, Deferred Stock Units, Restricted Stock And Unrestricted Stock Awards, And Performance Awards [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share Based Compensation Arrangement By Share Based Payment Award Share Limit Against Which Full Value Awards Will Be Counted   2.09