v3.25.2
Employee Share-Based Incentive Compensation Plans - Restricted Shares (Details) - Restricted Stock - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Restricted Shares        
Beginning of period (in shares) 32,885 34,525 35,390 37,595
Vested (in shares) 0 0 (13,150) (13,475)
Issued (in shares) 0 1,000 10,645 11,405
Forfeited (in shares) 0 0 0 0
End of period (in shares) 32,885 35,525 32,885 35,525
Unamortized Issue Date Fair Value        
Beginning of period $ 35.6 $ 31.3 $ 19.9 $ 16.2
Vested 0.0 0.0 0.0 0.0
Issued 0.0 1.7 19.5 20.0
Forfeited 0.0 0.0 0.0 0.0
Expense recognized (4.9) (4.2) (8.7) (7.4)
End of period $ 30.7 $ 28.8 $ 30.7 $ 28.8