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
Jun. 30, 2022
Dec. 31, 2021
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Fair value adjustments $ 2,125 $ 47,127
Total mortgage loans held for sale, at fair value 1,229,594 2,052,378
Residential Mortgage Loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale 988,361 1,859,788
Commercial Mortgage Loans [Member]    
Mortgage Loans Held for Sale At Fair Value [Line Items]    
Mortgage loans held for sale $ 239,108 $ 145,463