Current report filing

Loans Held for Sale, at Fair Value - Schedule of Mortgage Loans Held For Sale that were Greater Than 90 Days Past Due And On Non-Accrual Status (Detail)

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Loans Held for Sale, at Fair Value - Schedule of Mortgage Loans Held For Sale that were Greater Than 90 Days Past Due And On Non-Accrual Status (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, aggregate unpaid principal balance $ 5,541 $ 3,877
Difference 12 (98)
Loans 90 days or more past due and on non-accrual status    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, at fair value 5,553 3,779
Residential mortgage loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, aggregate unpaid principal balance 2,736 616
Residential mortgage loans | Loans 90 days or more past due and on non-accrual status    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, at fair value 2,136 554
Commercial mortgage loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, aggregate unpaid principal balance 3,405 3,323
Commercial mortgage loans | Loans 90 days or more past due and on non-accrual status    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage loans held for sale, at fair value $ 2,817 $ 3,163