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Commitments, Contingencies and Off-Balance Sheet Arrangements - Off-Balance Sheet Commitments (Detail)
$ in Millions
 6 Months Ended
Jun. 30, 2024
USD ($)
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]  
Amount of Commitment Expiration by Period - 2024 $ 1.0
Amount of Commitment Expiration by Period - Thereafter 23.7
Total Amounts Committed 24.7
Financial Guarantees [Member]  
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]  
Amount of Commitment Expiration by Period - 2024 1.0
Total Amounts Committed 1.0
Letters of Credit [Member]  
Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]  
Amount of Commitment Expiration by Period - Thereafter 23.7
Total Amounts Committed $ 23.7