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Stock Based Compensation - Executive Committee Incentive Plan (Details) - PRSUs - $ / shares
9 Months Ended
Sep. 30, 2021
Aug. 04, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Historical volatility, assumption 34.29%  
Risk-free rate 1.55%  
Dividend yield 1.59%  
Expected term (years) 10 years  
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share price (in dollars per share)   $ 15
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share price (in dollars per share)   $ 60