v3.25.2
Long-Term Debt - Narrative (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
renewalPeriod
extensionTerm
Rate
Jun. 30, 2025
USD ($)
extensionTerm
Rate
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
renewalPeriod
extensionTerm
Rate
Jun. 30, 2024
USD ($)
Jun. 17, 2025
USD ($)
Dec. 31, 2024
USD ($)
Apr. 17, 2023
USD ($)
Feb. 16, 2023
USD ($)
Jun. 05, 2019
USD ($)
tranche
Debt Instrument [Line Items]                    
Repayments of long-term debt       $ 594,000,000 $ 0          
Debt instrument, repurchase program, maximum amount                 $ 100,000,000  
Cash sweeping event | Rate 175.00% 175.00%   175.00%            
Rapid amortization event | Rate 120.00% 120.00%   120.00%            
Manager termination event | Rate 120.00% 120.00%   120.00%            
Interest-only debt service coverage ratio, default event | Rate 110.00% 110.00%   110.00%            
Debt service coverage ratio | Rate 330.00% 330.00%   330.00%            
Unamortized debt issuance costs $ 13,000,000.0 $ 13,000,000.0   $ 13,000,000.0     $ 7,400,000      
Gain (loss) on extinguishment of debt   $ (850,000) $ 0 $ (850,000) 0          
Series 2019-1 4.723% Fixed Rate Senior Secured Notes, Class A-2-II and Series 2019-1 4.194% Fixed Rate Senior Secured Notes, Class A-2-I                    
Debt Instrument [Line Items]                    
Number of tranches issued | tranche                   2
Series 2019-1 4.194% Fixed Rate Senior Secured Notes, Class A-2-I                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent)                   4.194%
Debt instrument, face amount                   $ 700,000,000
Series 2019-1 4.723% Fixed Rate Senior Secured Notes, Class A-2-II                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent) 4.723% 4.723%   4.723%     4.723%     4.723%
Debt instrument, face amount                   $ 600,000,000
Amortization of debt issuance costs   $ 200,000   $ 400,000            
Gain (loss) on extinguishment of debt       (900,000)            
Series 2019-1 4.723% Fixed Rate Senior Secured Notes, Class A-2-II | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Repayments of long-term debt       $ 594,000,000            
Amortization of debt issuance costs     200,000   500,000          
Series 2023-1 7.824% Fixed Rate Senior Secured Notes, Class A-2                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent) 7.824% 7.824%   7.824%     7.824% 7.824%    
Debt instrument, face amount               $ 500,000,000    
Debt instrument, term (in years)       10 years            
Additional interest on fixed rate (in percent)       5.00%            
Quarterly principal payment       $ 1,250,000            
Covenant compliance, leverage ratio, maximum | Rate 525.00% 525.00%   525.00%            
Ratio of indebtedness to net capital | Rate 425.00% 425.00%   425.00%            
Make-whole premium $ 23,900,000 $ 23,900,000   $ 23,900,000            
Annual principal payment 5,000,000 5,000,000   $ 5,000,000            
Series 2023-1 7.824% Fixed Rate Senior Secured Notes, Class A-2 | Ten Year United States Treasury Bill Rate                    
Debt Instrument [Line Items]                    
Additional interest on fixed rate (in percent)       9.24%            
Series 2023-1 7.824% Fixed Rate Senior Secured Notes, Class A-2 | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Debt issuance costs, gross 8,000,000 8,000,000   $ 8,000,000            
Amortization of debt issuance costs   300,000 300,000 600,000 500,000          
Debt issuance costs, net $ 5,600,000 $ 5,600,000   $ 5,600,000            
Series 2022-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 7.14% at December 31, 2024                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent)             7.14%      
Series 2022-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 7.14% at December 31, 2024 | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Line of credit facility, expired amount           $ 325,000,000        
Series 2025-1 6.720% Fixed Rate Senior Secured Notes, Class A-2                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent) 6.72% 6.72%   6.72%   6.72% 6.72%      
Debt instrument, face amount           $ 600,000,000        
Debt instrument, term (in years)       10 years            
Additional interest on fixed rate (in percent)       5.00%            
Quarterly principal payment   $ 1,500,000   $ 1,500,000            
Covenant compliance, leverage ratio, maximum | Rate 525.00% 525.00%   525.00%            
Ratio of indebtedness to net capital | Rate 425.00% 425.00%   425.00%            
Make-whole premium $ 42,400,000 $ 42,400,000   $ 42,400,000            
Annual principal payment 6,000,000 6,000,000   $ 6,000,000            
Series 2025-1 6.720% Fixed Rate Senior Secured Notes, Class A-2 | Ten Year United States Treasury Bill Rate                    
Debt Instrument [Line Items]                    
Additional interest on fixed rate (in percent)       785.00%            
Series 2025-1 6.720% Fixed Rate Senior Secured Notes, Class A-2 | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Debt issuance costs, gross 7,500,000 7,500,000   $ 7,500,000            
Amortization of debt issuance costs   100,000   100,000            
Debt issuance costs, net $ 7,400,000 $ 7,400,000   $ 7,400,000            
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025                    
Debt Instrument [Line Items]                    
Debt interest rate (in percent) 6.93% 6.93%   6.93%            
Number of additional extensions | extensionTerm 2 2   2            
Additional extension (in years)       1 year            
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Line of credit facility, maximum borrowing capacity $ 325,000,000 $ 325,000,000   $ 325,000,000   $ 325,000,000        
Number of renewal periods | renewalPeriod 2     2            
Renewal period term (in years) 1 year     1 year            
Interest rate after renewal date (in percent) 5.00%                  
Debt, weighted average interest rate (in percent) 6.93% 6.93%   6.93%            
Letters of credit outstanding, amount $ 600,000 $ 600,000   $ 600,000            
Line of credit facility, current borrowing capacity 224,400,000 224,400,000   224,400,000            
Debt issuance costs, gross 4,100,000 4,100,000   4,100,000            
Amortization of debt issuance costs   300,000 $ 300,000 700,000 $ 600,000          
Debt issuance costs, net $ 6,900,000 $ 6,900,000   6,900,000            
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (in percent) 2.50%                  
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Letter of Credit                    
Debt Instrument [Line Items]                    
Proceeds from long-term lines of credit       $ 100,000,000            
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Letter of Credit | Base Rate                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (in percent) 2.00%                  
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Letter of Credit | Secured Overnight Financing Rate (SOFR)                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (in percent) 0.50%                  
Series 2025-1 Variable Funding Senior Notes, Class A-1, variable interest rate of 6.93% at June 30, 2025 | Letter of Credit | Federal Funds Rate                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (in percent) 0.50%