Supplemental Financial Statement Information - Operating Lease Information (Detail) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Leases [Abstract] | ||
| Fair Value of Assets (Liability), Right of use assets | $ 118.6 | $ 129.3 |
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Other noncurrent assets | Other noncurrent assets |
| Fair Value of Assets (Liability), Total lease liabilities | $ 32.8 | $ 33.7 |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Accrued and other liabilities | Accrued and other liabilities |
| Fair Value of Assets (Liability), Total lease liabilities | $ 105.3 | $ 111.7 |
| Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other noncurrent liabilities | Other noncurrent liabilities |
| Fair Value of Assets (Liability), Total lease liabilities | $ 138.1 | $ 145.4 |