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Commitments, Contingencies and Off-Balance Sheet Arrangements - Off-Balance Sheet Commitments (Detail) $ in Millions | 3 Months Ended
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Sep. 30, 2025 USD ($)
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Amount of Commitment Expiration by Period - 2025 | $ 0.0
Amount of Commitment Expiration by Period - 2026 | 0.0
Amount of Commitment Expiration by Period - 2027 | 0.0
Amount of Commitment Expiration by Period - 2028 | 0.0
Amount of Commitment Expiration by Period - 2029 | 0.0
Amount of Commitment Expiration by Period - Thereafter | 56.3
Total Amounts Committed | 56.3
Financial guarantees |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Amount of Commitment Expiration by Period - 2025 | 0.0
Amount of Commitment Expiration by Period - 2026 | 0.0
Amount of Commitment Expiration by Period - 2027 | 0.0
Amount of Commitment Expiration by Period - 2028 | 0.0
Amount of Commitment Expiration by Period - 2029 | 0.0
Amount of Commitment Expiration by Period - Thereafter | 42.0
Total Amounts Committed | 42.0
Letters of credit |
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items] |
Amount of Commitment Expiration by Period - 2025 | 0.0
Amount of Commitment Expiration by Period - 2026 | 0.0
Amount of Commitment Expiration by Period - 2027 | 0.0
Amount of Commitment Expiration by Period - 2028 | 0.0
Amount of Commitment Expiration by Period - 2029 | 0.0
Amount of Commitment Expiration by Period - Thereafter | 14.3
Total Amounts Committed | $ 14.3

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