Quarterly report pursuant to Section 13 or 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
Mar. 31, 2022
Dec. 31, 2021
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Fair value adjustments $ (1,684) $ 47,127
Total mortgage loans held for sale, at fair value 1,709,357 2,052,378
Residential Mortgage Loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale 1,499,525 1,859,788
Commercial Mortgage Loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale $ 211,516 $ 145,463