Employee Share-Based Incentive Compensation Plans - Performance Shares (Details) - USD ($) $ in Millions |
1 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Target Performance Shares Outstanding | ||||
| Beginning of period (in shares) | 32,416 | 34,859 | ||
| Shares paid or expired (in shares) | (10,835) | (13,150) | ||
| New grants (in shares) | 9,615 | 10,645 | ||
| Forfeitures and cancellations (in shares) | 19 | 38 | ||
| End of period (in shares) | 31,215 | 32,392 | 31,215 | 32,392 |
| Accrued Expense | ||||
| Beginning of period | $ 73.2 | $ 71.1 | ||
| Shares paid or expired | (44.1) | (48.7) | ||
| New grants | 0.0 | 0.0 | ||
| Forfeitures and cancellations | 0.5 | 0.8 | ||
| Expense recognized | 13.0 | 0.1 | ||
| End of period | $ 42.6 | $ 23.3 | $ 42.6 | $ 23.3 |
| Performance Share | ||||
| Accrued Expense | ||||
| Percentage of target payout - minimum actual | 184.00% | 200.00% | ||