Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.22.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Commitments to Purchase Loans [Member]    
Commitments and Contingencies [Line Items]    
Long-term Purchase Commitment, Amount $ 4.0 $ 47.3
Commitments to Sell Loans [Member]    
Commitments and Contingencies [Line Items]    
Long-term Purchase Commitment, Amount $ 112.3 0.0
Equal To Or Greater Than [Member]    
Commitments and Contingencies [Line Items]    
Percentage of outstanding principal balance is equal to or greater than MCA. 98.00%  
Percentage of outstanding principal balance of HECM is equal to or greater than MCA. 98.00%  
HECM Loans [Member]    
Commitments and Contingencies [Line Items]    
Unfunded loan commitments $ 2,900.0 2,600.0
Fix And Flip Loans [Member]    
Commitments and Contingencies [Line Items]    
Unfunded loan commitments 123.2 94.9
Agricultural loans[Member]    
Commitments and Contingencies [Line Items]    
Unfunded loan commitments $ 56.5 $ 78.5