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Share-based Payments (Summary of Share Unit Activity) (Details)
3 Months Ended
Mar. 31, 2024
$ / shares
shares
PSUs with Performance Conditions | Equity-classified awards  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding beginning balance, Shares 415,429
Granted, Shares 139,194
Vested and settled, Shares (114,315)
Forfeited, Shares (291)
Outstanding ending balance, Shares 440,017
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding beginning balance, Weighted average grant date fair value (usd per share) | $ / shares $ 58.35
Granted, Weighted average grant date fair value (usd per share) | $ / shares 75.13
Vested and settled, Weighted average grant date fair value (usd per share) | $ / shares 58.79
Forfeited, Weighted average grant date fair value (usd per share) | $ / shares 57.70
Outstanding ending balance, Weighted average grant date fair value (usd per share) | $ / shares $ 63.54
PSUs with Market Conditions | Equity-classified awards  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding beginning balance, Shares 174,260
Granted, Shares 138,421
Vested and settled, Shares 0
Forfeited, Shares 0
Outstanding ending balance, Shares 312,681
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding beginning balance, Weighted average grant date fair value (usd per share) | $ / shares $ 74.83
Granted, Weighted average grant date fair value (usd per share) | $ / shares 120.42
Vested and settled, Weighted average grant date fair value (usd per share) | $ / shares 0
Forfeited, Weighted average grant date fair value (usd per share) | $ / shares 0
Outstanding ending balance, Weighted average grant date fair value (usd per share) | $ / shares $ 95.01
RSUs  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Granted, Shares 263,930
RSUs | Equity-classified awards  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding beginning balance, Shares 539,671
Granted, Shares 265,547
Vested and settled, Shares (187,744)
Forfeited, Shares (18,868)
Outstanding ending balance, Shares 598,606
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding beginning balance, Weighted average grant date fair value (usd per share) | $ / shares $ 53.64
Granted, Weighted average grant date fair value (usd per share) | $ / shares 75.23
Vested and settled, Weighted average grant date fair value (usd per share) | $ / shares 53.59
Forfeited, Weighted average grant date fair value (usd per share) | $ / shares 54.94
Outstanding ending balance, Weighted average grant date fair value (usd per share) | $ / shares $ 63.19
DSUs | Liability-classified awards  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding beginning balance, Shares 100,560
Granted, Shares 5,112
Vested and settled, Shares (3,743)
Forfeited, Shares (32)
Outstanding ending balance, Shares 101,897
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding beginning balance, Weighted average grant date fair value (usd per share) | $ / shares $ 38.36
Granted, Weighted average grant date fair value (usd per share) | $ / shares 69.56
Vested and settled, Weighted average grant date fair value (usd per share) | $ / shares 59.03
Forfeited, Weighted average grant date fair value (usd per share) | $ / shares 59.03
Outstanding ending balance, Weighted average grant date fair value (usd per share) | $ / shares $ 39.16