v3.25.1
Employee Share-Based Incentive Compensation Plans - Restricted Shares (Details) - Restricted Stock - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Restricted Shares    
Beginning of period (in shares) 35,390 37,595
Vested (in shares) (13,150) (13,475)
Issued (in shares) 10,645 10,405
Forfeited (in shares) 0 0
End of period (in shares) 32,885 34,525
Unamortized Issue Date Fair Value    
Beginning of period $ 19.9 $ 16.2
Vested 0.0 0.0
Issued 19.5 18.3
Forfeited 0.0 0.0
Expense recognized (3.8) (3.2)
End of period $ 35.6 $ 31.3