Leases (Summary of Lease Assets and Liabilities) (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Assets | ||
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other current assets | Other current assets |
| Operating right-of-use assets | $ 64.8 | $ 69.1 |
| Liabilities | ||
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued liabilities | Accrued liabilities |
| Current lease liabilities | $ 13.6 | $ 13.0 |
| Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other liabilities | Other liabilities |
| Long-term lease liabilities | $ 54.4 | $ 59.3 |
| Total lease liabilities | $ 68.0 | $ 72.3 |