Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v3.22.4
Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2020
Class of Stock [Line Items]                
Net loss       $ (124,320) $ 1,301,002 $ 1,301,002 $ 715,528 $ (497,913)
Reverse mortgage loans held for investment, subject to nonrecourse debt     $ 7,240,125   5,165,479 5,165,479 $ 7,240,125  
Receivables due from investors (in percent)     100.00%       100.00%  
TRA obligation     $ 3,800   29,400 29,400 $ 3,800  
Advertising expense       $ 10,600   30,800 $ 34,200 $ 37,500
Forecast | Boston National Holdings LLC and Agents National Title Holding Company                
Class of Stock [Line Items]                
Proceeds from sale of businesses $ 100,000              
Proceeds from sale of businesses, net of cash on hand $ 65,000              
Earnout Shares, Tranche One                
Class of Stock [Line Items]                
Volume weighted average price (in dollars per share)             $ 12.50  
Number of trading days for determining the volume weighted average share price             20 days  
Number of consecutive trading days for determining the volume weighted average share price             30 days  
Earnout shares to be issued (in percent)     50.00%       50.00%  
Earnout Shares, Tranche Two                
Class of Stock [Line Items]                
Volume weighted average price (in dollars per share)             $ 15.00  
Number of trading days for determining the volume weighted average share price             20 days  
Number of consecutive trading days for determining the volume weighted average share price             30 days  
Earnout shares to be issued (in percent)     50.00%       50.00%  
American Advisors Group (AAG) | Forecast                
Class of Stock [Line Items]                
Total cash consideration   $ 10,000            
Business combination, consideration transferred, equity interests issued and issuable   50,000            
TRA obligation                
Class of Stock [Line Items]                
Realized tax benefits payable pursuant to an agreement (in percent)             85.00%  
Minimum                
Class of Stock [Line Items]                
Maintenance fee rate (in percent)             0.05%  
Eligible incentive compensation rate (in percent)             5.00%  
Minimum | IRLCs and LPCs                
Class of Stock [Line Items]                
Loan commitments term     30 days          
Maximum                
Class of Stock [Line Items]                
Maximum claim amount (in percent)     98.00%       98.00%  
Maintenance fee rate (in percent)             0.25%  
Eligible incentive compensation rate (in percent)             15.00%  
Maximum | IRLCs and LPCs                
Class of Stock [Line Items]                
Loan commitments term     90 days          
Non-agency reverse mortgages                
Class of Stock [Line Items]                
Reverse mortgage loans held for investment, subject to nonrecourse debt     $ 6,370,209   $ 4,285,661 $ 4,285,661 $ 6,370,209  
Non-agency reverse mortgages | Minimum                
Class of Stock [Line Items]                
Reverse mortgage loans held for investment, subject to nonrecourse debt     400       400  
Non-agency reverse mortgages | Maximum                
Class of Stock [Line Items]                
Reverse mortgage loans held for investment, subject to nonrecourse debt     $ 4,000       $ 4,000  
Before October Two Twenty Seventeen                
Class of Stock [Line Items]                
Rate of MIP amount on mortgage balance for loans     0.50%       0.50%  
After October Two Twenty Seventeen                
Class of Stock [Line Items]                
Rate of MIP amount on mortgage balance for loans     1.25%       1.25%  
Buy To Rent Platform Holdings L P | Capital Unit, Class B | FAH                
Class of Stock [Line Items]                
Stock redeemed or called during period             $ 203,200  
Certain Existing Equity Holders | American Advisors Group (AAG) | Forecast                
Class of Stock [Line Items]                
Business combination, consideration transferred, equity interests issued and issuable   $ 30,000