Quarterly report pursuant to Section 13 or 15(d)

Reverse Mortgage Portfolio Composition - Summarizes the Owned Reverse Mortgage Portfolio by Product Type (Detail)

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Reverse Mortgage Portfolio Composition - Summarizes the Owned Reverse Mortgage Portfolio by Product Type (Detail) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Owned reverse mortgage portfolio $ 26,116,694 $ 25,691,764
Fixed rate loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Owned reverse mortgage portfolio 6,951,821 6,817,176
Adjustable rate loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Owned reverse mortgage portfolio $ 19,164,873 $ 18,874,588