Real Estate - Additional Information (Detail) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Real Estate [Abstract] | ||
| Operating lease right-of-use assets | $ 835.3 | $ 671.7 |
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Other assets | Other assets |
| Lease liabilities | $ 658.3 | $ 643.5 |
| Operating Lease, Liability, Statement of Financial Position [Extensible List] | Other liabilities | Other liabilities |