XML 92 R81.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Employee Share-Based Incentive Compensation Plans - Performance Shares (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Target Performance Shares Outstanding        
Beginning of period (in shares)     37,031 39,449
Shares paid (in shares)     (13,475) (13,350)
New grants (in shares)     10,405 10,895
Forfeitures and cancellations (in shares)     (46) (37)
End of period (in shares) 34,007 37,031 34,007 37,031
Accrued Expense        
Beginning of period     $ 69.4 $ 67.5
Shares paid     (44.9) (40.8)
New grants     0.0 0.0
Forfeitures and cancellations     (0.3) (0.4)
Expense recognized     19.4 9.3
End of period $ 44.2 $ 36.4 $ 44.2 $ 36.4
Performance Share        
Accrued Expense        
Percentage of target payout - minimum actual 188.00% 200.00%