Annual report pursuant to Section 13 and 15(d)

Loans Held for Sale, at Fair Value - Schedule of Mortgage Loans Held For Sale, At Fair Value (Detail)

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Loans Held for Sale, at Fair Value - Schedule of Mortgage Loans Held For Sale, At Fair Value (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Fair value adjustments $ 47,127 $ 81,323
Total loans held for sale, at fair value 2,052,378 2,222,811
Residential mortgage and home improvement loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale 1,859,788 2,000,795
Commercial Mortgage Loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale $ 145,463 $ 140,693