v3.26.1
Stock-Based Compensation Plans - Schedule of Plans' Restricted and Performance Share Award Activity (Details) - $ / shares
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Restricted Shares    
Common Shares    
Outstanding, beginning of the period (in shares) 888,398 880,866
Granted (in shares) 246,987 245,654
Vested and issued (in shares) (268,760) (192,866)
Forfeited or canceled (in shares) (7,356) (7,587)
Outstanding, end of the period (in shares) 859,269 926,067
Vested, but deferred (in shares) 102,584 101,000
Weighted Average Grant-Date Fair Value    
Outstanding, beginning of period (usd per share) $ 101.63 $ 90.95
Granted (usd per share) 153.55 133.61
Vested and issued (usd per share) 93.29 94.94
Forfeited or canceled (usd per share) 117.07 103.76
Outstanding, end of period (usd per share) 119.23 101.33
Vested, but deferred (usd per share) $ 55.94 $ 54.75
Performance-based Stock    
Common Shares    
Outstanding, beginning of the period (in shares) 377,757 454,017
Granted (in shares) 85,822 86,524
Added by performance factor at vesting (in shares) 9,242 75,461
Vested and issued (in shares) (196,899) (230,957)
Forfeited or canceled (in shares) (336) (2,902)
Outstanding, end of the period (in shares) 275,586 382,143
Vested, but deferred (in shares) 0 13,176
Weighted Average Grant-Date Fair Value    
Outstanding, beginning of period (usd per share) $ 102.38 $ 93.57
Granted (usd per share) 148.36 134.69
Added by performance factor at vesting (usd per share) 0 0
Vested and issued (usd per share) 90.33 95.26
Forfeited or canceled (usd per share) 112.99 97.28
Outstanding, end of period (usd per share) 125.92 102.41
Vested, but deferred (usd per share) $ 0 $ 40.20