v3.25.2
Debt Obligations - Narrative (Details)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
Apr. 30, 2025
May 31, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jan. 31, 2025
USD ($)
Jun. 30, 2025
USD ($)
$ / shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
$ / shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Jul. 31, 2025
USD ($)
Debt Obligations                      
Interest expense           $ 6,100,000   $ 12,200,000      
Junior subordinated notes to subsidiary trust issuing preferred securities $ 145,085,000         $ 145,085,000   $ 145,085,000   $ 144,686,000  
Debt, Wtd. Avg. Rate 6.66%         6.66%   6.66%      
Q Series securitization                      
Debt Obligations                      
Weighted average note rate including certain fees and costs, percentage 7.52%         7.52%   7.52%   7.46%  
Debt face value issued to third parties $ 37,950,000         $ 37,950,000   $ 37,950,000   $ 50,641,000  
Debt, Wtd. Avg. Rate 6.45%         6.45%   6.45%   6.49%  
7.875% Senior Unsecured Notes Due 2030 | Subsequent event                      
Debt Obligations                      
Debt face value issued to third parties                     $ 500,000,000.0
Interest rate                     7.875%
7.50% convertible notes                      
Debt Obligations                      
Interest rate 7.50%         7.50%   7.50%      
Conversion rate of the notes to common stock, per $1,000 principal amount of notes 0.0607706                    
Conversion price per share of common stock (in dollars per share) | $ / shares $ 16.46         $ 16.46   $ 16.46      
Convertible senior unsecured notes                      
Debt Obligations                      
Debt face value issued to third parties $ 287,500,000         $ 287,500,000   $ 287,500,000   $ 287,500,000  
Percentage of notes required to be repurchased if the agreement is fundamentally changed               100.00%      
Deferred fees expensed as interest expense           700,000 $ 700,000 $ 1,400,000 $ 1,400,000    
Interest expense           6,100,000 6,100,000 12,200,000 12,200,000    
Interest expense related to cash coupon           $ 5,400,000 $ 5,400,000 $ 10,800,000 $ 10,800,000    
Weighted average cost of notes, percentage 8.43%         8.43%   8.43%   8.43%  
Junior subordinated notes                      
Debt Obligations                      
Weighted average note rate including certain fees and costs, percentage 7.25%         7.25%   7.25%   7.26%  
Debt face value issued to third parties $ 154,336,000         $ 154,336,000   $ 154,336,000   $ 154,336,000  
Deferred fees expensed as interest expense               1,300,000   1,400,000  
Junior subordinated notes to subsidiary trust issuing preferred securities 145,100,000         145,100,000   145,100,000   144,700,000  
Deferred amount due at maturity $ 8,000,000.0         $ 8,000,000.0   $ 8,000,000.0   $ 8,300,000  
Debt, Wtd. Avg. Rate 7.17%         7.17%   7.17%   7.18%  
Amount payable on default of senior debt $ 0         $ 0   $ 0      
Structured Business                      
Debt Obligations                      
Weighted average note rate including certain fees and costs, percentage 7.11%         7.11%   7.11%   7.43%  
Leverage on loans and investment portfolio financed through credit and repurchase facilities, excluding securities repurchase facility and working capital facility 70.00%         70.00%   70.00%   67.00%  
Debt, Wtd. Avg. Rate 6.73%         6.73%   6.73%      
Structured Business | $150M repurchase facility                      
Debt Obligations                      
Maximum borrowing capacity $ 150,000,000   $ 150,000,000.0     $ 150,000,000   $ 150,000,000      
Variable rate, spread   3.00% 2.50%                
Floor interest rate percentage   5.50% 5.50%                
Debt, Wtd. Avg. Rate 7.15%         7.15%   7.15%      
Structured Business | $1.15B repurchase facility                      
Debt Obligations                      
Maximum borrowing capacity $ 1,150,000,000     $ 1,150,000,000   $ 1,150,000,000   $ 1,150,000,000      
Variable rate, spread       1.85%              
Line of credit facility, reinvestment period       24 months              
Non-recourse percentage       0.88              
Advance rate       0.80              
Debt, Wtd. Avg. Rate 6.26%         6.26%   6.26%      
Structured Business | $200 million repurchase facility                      
Debt Obligations                      
Maximum borrowing capacity                   $ 200,000,000.0  
Structured Business | $400M credit facility                      
Debt Obligations                      
Maximum borrowing capacity $ 400,000,000       $ 400,000,000.0 $ 400,000,000   $ 400,000,000      
Debt instrument extension term         1 year            
Debt, Wtd. Avg. Rate 7.68%         7.68%   7.68%