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Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Other Commitments [Line Items]    
Outstanding Loan Commitments $ 719,200 $ 475,100
Cancellable Amounts 107,900 88,100
Future commitments outstanding related to investments 19,000  
Other Liabilities [Member]    
Other Commitments [Line Items]    
Reserves for unfunded commitments to borrowers 1,800 962
Performance Stand-by Letters of Credit [Member]    
Other Commitments [Line Items]    
Outstanding stand-by letters of credit 0 655
Financial Stand-by Letters of Credit [Member]    
Other Commitments [Line Items]    
Outstanding stand-by letters of credit $ 29,800 $ 4,500