Amounts Related to Cumulative Basis Adjustments for Fair Value Hedges (Detail) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Carrying amount of the hedged liabilities | $ 656.4 | $ 543.1 |
| Hedged Liability, Statement of Financial Position [Extensible Enumeration] | Notes Payable | Notes Payable |
| Cumulative basis adjustment increase (decrease) included in the carrying amount | $ 6.2 | $ (8.6) |