Annual report pursuant to Section 13 and 15(d)

Other Assets, Net - Summary of Other Assets, Net (Detail)

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Other Assets, Net - Summary of Other Assets, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Other Assets [Abstract]    
Right-of-use assets $ 62,528 $ 46,609
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Right-of-use assets Right-of-use assets
Receivables, net of allowance of $266 and $788, respectively $ 60,066 $ 67,011
Retained bonds, at fair value 55,614  
Government guaranteed receivables 46,958 46,481
Prepaid expenses 23,981 17,536
Margin deposits 23,193 12,965
Servicer advances, net of allowance of $2,115 and $1,661, respectively 10,552 5,795
Investments 9,554 18,934
Loan subject to repurchase from Ginnie Mae 7,956 42,148
Debt Securities 7,572 10,773
Deposits 2,249 14,188
Receivable from clearing organization 2,038 2,043
Other 46,122 26,922
Total other assets, net $ 358,383 $ 311,405