Related Party Transactions (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Related Party Transaction [Line Items] | ||||
| Administrative and general | $ 46.5 | $ 42.9 | $ 94.8 | $ 92.2 |
| Cash dividends paid to parent company | 150.0 | 100.0 | ||
| Parent Company | ||||
| Related Party Transaction [Line Items] | ||||
| Cash dividends paid to parent company | 75.0 | 50.0 | 150.0 | 100.0 |
| Affiliates | ||||
| Related Party Transaction [Line Items] | ||||
| Administrative and general | $ 1.5 | $ 1.3 | $ 3.0 | $ 2.7 |