v3.25.2
Portfolio Investments - Unobservable Inputs Used in Fair Value Measurement of Level 3 Investments (Details)
$ in Thousands
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 6,673,516 [1] $ 7,718,243 [2]
Subordinated Structured Notes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 35,002 531,690
Unsecured Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 5,403 7,200
Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 6,591,431 7,668,592
Level 3 | Debt Securities, First Lien 1 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1,605,991 $ 1,803,971
Level 3 | Debt Securities, First Lien 1 | Discounted cash flow | Minimum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.078 0.083
Level 3 | Debt Securities, First Lien 1 | Discounted cash flow | Maximum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.289 0.341
Level 3 | Debt Securities, First Lien 1 | Discounted cash flow | Weighted Average | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.118 0.124
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 902,617  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.065  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.053  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.103  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.083  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.073  
Level 3 | Debt Securities, First Lien 2 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Debt Securities, First Lien 2 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 602,921
Level 3 | Debt Securities, First Lien 2 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   3.3
Level 3 | Debt Securities, First Lien 2 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   11.5
Level 3 | Debt Securities, First Lien 2 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   8.2
Level 3 | Debt Securities, First Lien 3 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.145 0.093
Level 3 | Debt Securities, First Lien 3 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.388 0.113
Level 3 | Debt Securities, First Lien 3 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.172 0.103
Level 3 | Debt Securities, First Lien 3 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 630,095 $ 316,428
Level 3 | Debt Securities, First Lien 3 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 4.8 10.5
Level 3 | Debt Securities, First Lien 3 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.8 12.5
Level 3 | Debt Securities, First Lien 3 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 10.6 11.5
Level 3 | Debt Securities, First Lien 4 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 452,172 $ 156,075
Level 3 | Debt Securities, First Lien 4 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.3
Level 3 | Debt Securities, First Lien 4 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.0  
Level 3 | Debt Securities, First Lien 4 | Market approach | Minimum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 8.0  
Level 3 | Debt Securities, First Lien 4 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.0
Level 3 | Debt Securities, First Lien 4 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.5  
Level 3 | Debt Securities, First Lien 4 | Market approach | Maximum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.5  
Level 3 | Debt Securities, First Lien 4 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.1
Level 3 | Debt Securities, First Lien 4 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.5  
Level 3 | Debt Securities, First Lien 4 | Market approach | Weighted Average | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.5  
Level 3 | Debt Securities, First Lien 5 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 56,239
Level 3 | Debt Securities, First Lien 5 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.058
Level 3 | Debt Securities, First Lien 5 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.300
Level 3 | Debt Securities, First Lien 5 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.072
Level 3 | Debt Securities, First Lien 5 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 351,480  
Level 3 | Debt Securities, First Lien 5 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 5.0  
Level 3 | Debt Securities, First Lien 5 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 11.5  
Level 3 | Debt Securities, First Lien 5 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 9.8  
Level 3 | Debt Securities, First Lien 6 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.140
Level 3 | Debt Securities, First Lien 6 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.550
Level 3 | Debt Securities, First Lien 6 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.345
Level 3 | Debt Securities, First Lien 6 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 40,488
Level 3 | Debt Securities, First Lien 6 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 236,073  
Level 3 | Debt Securities, First Lien 6 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.3 0.9
Level 3 | Debt Securities, First Lien 6 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 2.0 1.5
Level 3 | Debt Securities, First Lien 6 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 1.7 1.2
Level 3 | Debt Securities, First Lien 7 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 5,165
Level 3 | Debt Securities, First Lien 7 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 78,736  
Level 3 | Debt Securities, First Lien 7 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.4
Level 3 | Debt Securities, First Lien 7 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 1.4  
Level 3 | Debt Securities, First Lien 7 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.7
Level 3 | Debt Securities, First Lien 7 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 2.2  
Level 3 | Debt Securities, First Lien 7 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.6
Level 3 | Debt Securities, First Lien 7 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 2.2  
Level 3 | Debt Securities, First Lien 7 | Yield, market, discounted cash flow approach | Minimum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.137
Level 3 | Debt Securities, First Lien 7 | Yield, market, discounted cash flow approach | Maximum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.197
Level 3 | Debt Securities, First Lien 7 | Yield, market, discounted cash flow approach | Weighted Average | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.167
Level 3 | Debt Securities, First Lien 8 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 54,739  
Level 3 | Debt Securities, First Lien 8 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Debt Securities, First Lien 8 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.080  
Level 3 | Debt Securities, First Lien 8 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 20,630
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Minimum | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Minimum | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Maximum | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Maximum | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Weighted Average | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Debt Securities, First Lien 8 | Enterprise value waterfall | Weighted Average | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Debt Securities, First Lien 9 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.155  
Level 3 | Debt Securities, First Lien 9 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.310  
Level 3 | Debt Securities, First Lien 9 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.178  
Level 3 | Debt Securities, First Lien 9 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 49,114  
Level 3 | Debt Securities, First Lien 9 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.4  
Level 3 | Debt Securities, First Lien 9 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 1.6  
Level 3 | Debt Securities, First Lien 9 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.9  
Level 3 | Debt Securities, First Lien 9 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 190,500
Level 3 | Debt Securities, First Lien 9 | Enterprise value waterfall | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.112
Level 3 | Debt Securities, First Lien 9 | Enterprise value waterfall | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.291
Level 3 | Debt Securities, First Lien 9 | Enterprise value waterfall | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.132
Level 3 | Debt Securities, First Lien 10 | Discounted cash flow | Minimum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.264  
Level 3 | Debt Securities, First Lien 10 | Discounted cash flow | Maximum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.264  
Level 3 | Debt Securities, First Lien 10 | Discounted cash flow | Weighted Average | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.264  
Level 3 | Debt Securities, First Lien 10 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 111,800
Level 3 | Debt Securities, First Lien 10 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.0
Level 3 | Debt Securities, First Lien 10 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.1
Level 3 | Debt Securities, First Lien 10 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.6
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 30,673  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 8.0  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.450  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 9.0  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.550  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 9.0  
Level 3 | Debt Securities, First Lien 10 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.550  
Level 3 | Debt Securities, First Lien 11 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 424,992
Level 3 | Debt Securities, First Lien 11 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.5
Level 3 | Debt Securities, First Lien 11 | Market approach | Minimum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   9.0
Level 3 | Debt Securities, First Lien 11 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   3.0
Level 3 | Debt Securities, First Lien 11 | Market approach | Maximum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   12.0
Level 3 | Debt Securities, First Lien 11 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.7
Level 3 | Debt Securities, First Lien 11 | Market approach | Weighted Average | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   10.5
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 11,852  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.172  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.450  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.172  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.550  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.172  
Level 3 | Debt Securities, First Lien 11 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.550  
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 10,663 $ 877,151
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.100 0.063
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.053
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.300 0.098
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.083
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.153 0.072
Level 3 | Debt Securities, First Lien 12 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.060
Level 3 | Debt Securities, First Lien 13 | Enterprise market & discounted cash flow approach and option pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 5,922  
Level 3 | Debt Securities, First Lien 13 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.300  
Level 3 | Debt Securities, First Lien 13 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.400  
Level 3 | Debt Securities, First Lien 13 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.400  
Level 3 | Debt Securities, Second Lien 1 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 651,091 $ 1,031,632
Level 3 | Debt Securities, Second Lien 1 | Discounted cash flow | Minimum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.110 0.083
Level 3 | Debt Securities, Second Lien 1 | Discounted cash flow | Maximum | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.485 0.646
Level 3 | Debt Securities, Second Lien 1 | Discounted cash flow | Weighted Average | Market yield    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.156 0.153
Level 3 | Debt Securities, Second Lien 2 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 1,948
Level 3 | Debt Securities, Second Lien 2 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   4.5
Level 3 | Debt Securities, Second Lien 2 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   5.5
Level 3 | Debt Securities, Second Lien 2 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   5.0
Level 3 | Debt Securities, Second Lien 2 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 54,997  
Level 3 | Debt Securities, Second Lien 3 | Asset recovery analysis    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 12,897 $ 10,289
Level 3 | Debt Securities, Second Lien 4 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.145  
Level 3 | Debt Securities, Second Lien 4 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.165  
Level 3 | Debt Securities, Second Lien 4 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.155  
Level 3 | Debt Securities, Second Lien 4 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 7,387  
Level 3 | Debt Securities, Second Lien 4 | Enterprise market and discounted cash flow approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 4.8  
Level 3 | Debt Securities, Second Lien 4 | Enterprise market and discounted cash flow approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 7.8  
Level 3 | Debt Securities, Second Lien 4 | Enterprise market and discounted cash flow approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 6.3  
Level 3 | Subordinated Structured Notes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 35,002 531,690
Level 3 | Subordinated Structured Notes | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 35,002 $ 531,690
Level 3 | Subordinated Structured Notes | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.160 0.054
Level 3 | Subordinated Structured Notes | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.602 0.208
Level 3 | Subordinated Structured Notes | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.177 0.117
Level 3 | Unsecured Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 5,403 $ 7,200
Level 3 | Unsecured Debt | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 5,403 $ 7,200
Level 3 | Unsecured Debt | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 5.8 5.8
Level 3 | Unsecured Debt | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 7.0 7.0
Level 3 | Unsecured Debt | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 7.0 6.4
Level 3 | Preferred Equity 1 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 89,912 $ 8,287
Level 3 | Preferred Equity 1 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 4.3  
Level 3 | Preferred Equity 1 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.3
Level 3 | Preferred Equity 1 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 11.3  
Level 3 | Preferred Equity 1 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.0
Level 3 | Preferred Equity 1 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 8.9  
Level 3 | Preferred Equity 1 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.2
Level 3 | Preferred Equity 2 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 21,092 $ 34,198
Level 3 | Preferred Equity 2 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.3 3.3
Level 3 | Preferred Equity 2 | Market approach | Minimum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.550  
Level 3 | Preferred Equity 2 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 6.8 9.5
Level 3 | Preferred Equity 2 | Market approach | Maximum | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.700  
Level 3 | Preferred Equity 2 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 5.3 8.9
Level 3 | Preferred Equity 2 | Market approach | Weighted Average | Expected volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.652  
Level 3 | Preferred Equity 3 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 12,184
Level 3 | Preferred Equity 3 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.058
Level 3 | Preferred Equity 3 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.078
Level 3 | Preferred Equity 3 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.068
Level 3 | Preferred Equity 3 | Enterprise market cash flow approach and option pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 10,914  
Level 3 | Preferred Equity 3 | Enterprise market cash flow approach and option pricing model | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Preferred Equity 3 | Enterprise market cash flow approach and option pricing model | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.080  
Level 3 | Preferred Equity 3 | Enterprise market cash flow approach and option pricing model | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Preferred Stock 4 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 6,697  
Level 3 | Preferred Stock 4 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.3  
Level 3 | Preferred Stock 4 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 2.0  
Level 3 | Preferred Stock 4 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 1.1  
Level 3 | Liquidation Trust | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 6,500  
Level 3 | Common Equity/Interests/Warrants 1 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 454,847 $ 455,535
Level 3 | Common Equity/Interests/Warrants 1 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 4.5 3.3
Level 3 | Common Equity/Interests/Warrants 1 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 11.5 11.5
Level 3 | Common Equity/Interests/Warrants 1 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 10.2 8.4
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 354,269  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.065  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.053  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.103  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.083  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.073  
Level 3 | Common Equity/Interests/Warrants 2 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Common Equity/Interests/Warrants 2 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 3,923
Level 3 | Common Equity/Interests/Warrants 2 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.4
Level 3 | Common Equity/Interests/Warrants 2 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.5
Level 3 | Common Equity/Interests/Warrants 2 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.6
Level 3 | Common Equity/Interests/Warrants 3 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.140
Level 3 | Common Equity/Interests/Warrants 3 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.550
Level 3 | Common Equity/Interests/Warrants 3 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.345
Level 3 | Common Equity/Interests/Warrants 3 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 426
Level 3 | Common Equity/Interests/Warrants 3 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 308,346  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Minimum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.9
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.0  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Minimum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 8.0  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Maximum | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.5
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.5  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Maximum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.5  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Weighted Average | Revenue multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.2
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 3.5  
Level 3 | Common Equity/Interests/Warrants 3 | Market approach | Weighted Average | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.5  
Level 3 | Common Equity/Interests/Warrants 4 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.093
Level 3 | Common Equity/Interests/Warrants 4 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.113
Level 3 | Common Equity/Interests/Warrants 4 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.103
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 147,455
Level 3 | Common Equity/Interests/Warrants 4 | Market approach | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   10.5
Level 3 | Common Equity/Interests/Warrants 4 | Market approach | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   12.5
Level 3 | Common Equity/Interests/Warrants 4 | Market approach | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   11.5
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 42,484  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 7.0  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.160  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 12.8  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.388  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | EBITDA multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 11.8  
Level 3 | Common Equity/Interests/Warrants 4 | Enterprise market & discounted cash flow approach and option pricing model | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.368  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 32,206  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.065  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 5.3  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.103  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.083  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.073  
Level 3 | Common Equity/Interests/Warrants 5 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.060  
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 53,860
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.112
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Minimum | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Minimum | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.291
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Maximum | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Maximum | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.132
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Weighted Average | Loss-adjusted discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.082
Level 3 | Common Equity/Interests/Warrants 5 | Enterprise value waterfall | Weighted Average | Projected loss rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.030
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 46,193
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.063
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.053
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.098
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.083
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.072
Level 3 | Common Equity/Interests/Warrants 6 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.060
Level 3 | Common Equity/Interests/Warrants 6 | Enterprise market and discounted cash flow approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 26,817  
Level 3 | Common Equity/Interests/Warrants 6 | Enterprise market and discounted cash flow approach | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.100  
Level 3 | Common Equity/Interests/Warrants 6 | Enterprise market and discounted cash flow approach | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.300  
Level 3 | Common Equity/Interests/Warrants 6 | Enterprise market and discounted cash flow approach | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.155  
Level 3 | Common Equity/Interests/Warrants 7 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 10,592
Level 3 | Common Equity/Interests/Warrants 7 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1
Level 3 | Common Equity/Interests/Warrants 7 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.1
Level 3 | Common Equity/Interests/Warrants 7 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   1.2
Level 3 | Common Equity/Interests/Warrants 7 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 22,289  
Level 3 | Common Equity/Interests/Warrants 8 | Market approach    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 180,936
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Minimum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.5
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Minimum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   9.0
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Maximum | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   3.0
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Maximum | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   12.0
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Weighted Average | Tangible book value multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   2.7
Level 3 | Common Equity/Interests/Warrants 8 | Market approach | Weighted Average | Earnings multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   10.5
Level 3 | Common Equity/Interests/Warrants 8 | Enterprise value waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 11,880  
Level 3 | Common Equity/Interests/Warrants 8 | Enterprise value waterfall | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.123  
Level 3 | Common Equity/Interests/Warrants 8 | Enterprise value waterfall | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.160  
Level 3 | Common Equity/Interests/Warrants 8 | Enterprise value waterfall | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.130  
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 508,128
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.063
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Minimum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.053
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.098
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Maximum | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.083
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.072
Level 3 | Common Equity/Interests/Warrants 9 | Discounted cash flow | Weighted Average | Terminal Cap Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input   0.060
Level 3 | Common Equity/Interests/Warrants 9 | Asset recovery analysis    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 11,660  
Level 3 | Common Equity/Interests/Warrants 10 | Discounted cash flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 4,614 $ 5,105
Level 3 | Common Equity/Interests/Warrants 10 | Discounted cash flow | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.200 0.185
Level 3 | Common Equity/Interests/Warrants 10 | Discounted cash flow | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.300 0.300
Level 3 | Common Equity/Interests/Warrants 10 | Discounted cash flow | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable Input 0.205 0.228
Level 3 | Common Equity/Interests/Warrants 11 | Asset recovery analysis    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 12,651
[1] Fair value is determined by or under the direction of our Board of Directors. Unless otherwise indicated by endnote 42 below, all of our investments are valued using significant unobservable inputs. In accordance with ASC 820, such investments are classified as Level 3 within the fair value hierarchy. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.
[2] Fair value is determined by or under the direction of our Board of Directors. Unless otherwise indicated by endnote 42 below, all of our investments are valued using significant unobservable inputs. In accordance with ASC 820, such investments are classified as Level 3 within the fair value hierarchy. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.