Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Investments - Schedule of Quantitative Information About Significant Unobservable Inputs of Level 3 Investments (Details)

v3.22.2.2
Fair Value of Investments - Schedule of Quantitative Information About Significant Unobservable Inputs of Level 3 Investments (Details)
Sep. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 12,835,918,000 [1],[2],[3] $ 12,741,640,000 [4],[5],[6]
First-lien senior secured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 9,264,249,000 9,539,774,000
Second-lien senior secured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 1,846,431,000 1,921,447,000
Fair value of investments valued using indicative bid prices obtained from brokers   50,500,000
Unsecured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 237,375,000 196,485,000
Fair value of investments valued using indicative bid prices obtained from brokers   11,600,000
Preferred equity investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 329,451,000 260,869,000
Common equity investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 844,502,000 576,004,000
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 12,425,491,000 12,490,191,000
Level 3 | First-lien senior secured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 9,263,764,000 9,539,774,000
Level 3 | First-lien senior secured debt investments | Yield Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 8,989,042,000 8,670,821,000
Level 3 | First-lien senior secured debt investments | Recent Transaction    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 215,687,000 868,953,000
Level 3 | First-lien senior secured debt investments | Collateral Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 59,035,000  
Level 3 | Second-lien senior secured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 1,750,922,000 1,921,447,000
Level 3 | Second-lien senior secured debt investments | Yield Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 1,740,416,000 1,459,187,000
Level 3 | Second-lien senior secured debt investments | Recent Transaction    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value   395,865,000
Level 3 | Second-lien senior secured debt investments | Collateral Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 10,506,000 15,919,000
Level 3 | Unsecured debt investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 237,375,000 196,485,000
Level 3 | Unsecured debt investments | Yield Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 232,240,000 179,730,000
Level 3 | Unsecured debt investments | Market Approach    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 5,135,000 5,135,000
Level 3 | Preferred equity investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 329,451,000 260,869,000
Level 3 | Preferred equity investments | Yield Analysis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 305,431,000 181,394,000
Level 3 | Preferred equity investments | Recent Transaction    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 23,975,000 75,863,000
Level 3 | Preferred equity investments | Market Approach    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 45,000 3,612,000
Level 3 | Common equity investments    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 843,979,000 571,616,000
Level 3 | Common equity investments | Recent Transaction    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 18,401,000 79,900,000
Level 3 | Common equity investments | Market Approach | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 3,917,000 2,334,000
Level 3 | Common equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 799,574,000 488,629,000
Level 3 | Common equity investments | Market Approach | Revenue    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 21,962,000  
Level 3 | Common equity investments | Market Approach | Gross Profit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 125,000 $ 753,000
Level 3 | Minimum | First-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.091 0.053
Level 3 | Minimum | First-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.975 0.905
Level 3 | Minimum | First-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.690  
Level 3 | Minimum | Second-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.118 0.078
Level 3 | Minimum | Second-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average)   0.980
Level 3 | Minimum | Second-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.165 0.250
Level 3 | Minimum | Unsecured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.102 0.072
Level 3 | Minimum | Unsecured debt investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 14.0 14.8
Level 3 | Minimum | Preferred equity investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.120 0.114
Level 3 | Minimum | Preferred equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.970 0.973
Level 3 | Minimum | Preferred equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 11.5 9.3
Level 3 | Minimum | Common equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.957 1.000
Level 3 | Minimum | Common equity investments | Market Approach | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 70.00 560.00
Level 3 | Minimum | Common equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 1.2 1.2
Level 3 | Minimum | Common equity investments | Market Approach | Revenue    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 1.1  
Level 3 | Minimum | Common equity investments | Market Approach | Gross Profit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 10.0 27.0
Level 3 | Maximum | First-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.331 0.200
Level 3 | Maximum | First-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.990 0.994
Level 3 | Maximum | First-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.690  
Level 3 | Maximum | Second-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.232 0.150
Level 3 | Maximum | Second-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average)   0.990
Level 3 | Maximum | Second-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.165 0.250
Level 3 | Maximum | Unsecured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.200 0.094
Level 3 | Maximum | Unsecured debt investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 14.0 14.8
Level 3 | Maximum | Preferred equity investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.168 0.146
Level 3 | Maximum | Preferred equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.970 1.000
Level 3 | Maximum | Preferred equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 11.5 9.3
Level 3 | Maximum | Common equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 1.235 1.000
Level 3 | Maximum | Common equity investments | Market Approach | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 70.00 560.00
Level 3 | Maximum | Common equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 24.3 24.0
Level 3 | Maximum | Common equity investments | Market Approach | Revenue    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 16.6  
Level 3 | Maximum | Common equity investments | Market Approach | Gross Profit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 10.0 27.0
Level 3 | Weighted Average | First-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.126 0.087
Level 3 | Weighted Average | First-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.979 0.974
Level 3 | Weighted Average | First-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.690  
Level 3 | Weighted Average | Second-lien senior secured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.155 0.096
Level 3 | Weighted Average | Second-lien senior secured debt investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average)   0.986
Level 3 | Weighted Average | Second-lien senior secured debt investments | Collateral Analysis | Recovery Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.165 0.250
Level 3 | Weighted Average | Unsecured debt investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.126 0.088
Level 3 | Weighted Average | Unsecured debt investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 14.0 14.8
Level 3 | Weighted Average | Preferred equity investments | Yield Analysis | Market Yield    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.138 0.119
Level 3 | Weighted Average | Preferred equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 0.970 0.981
Level 3 | Weighted Average | Preferred equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 11.5 9.3
Level 3 | Weighted Average | Common equity investments | Recent Transaction | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 1.037 1.000
Level 3 | Weighted Average | Common equity investments | Market Approach | Transaction Price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 70.00 560.00
Level 3 | Weighted Average | Common equity investments | Market Approach | EBITDA Multiple    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 5.6 5.0
Level 3 | Weighted Average | Common equity investments | Market Approach | Revenue    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 12.9  
Level 3 | Weighted Average | Common equity investments | Market Approach | Gross Profit    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (Weighted Average) 10.0 27.0
[1] Certain portfolio company investments are subject to contractual restrictions on sales. Refer to footnote 30 for additional information on our restricted securities.
[2] Unless otherwise indicated, all investments are considered Level 3 investments.
[3] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Revolving Credit Facility, SPV Asset Facilities and CLOs. See Note 6 “Debt”.
[4] Certain portfolio company investments are subject to contractual restrictions on sales.
[5] Unless otherwise indicated, all investments are considered Level 3 investments.
[6] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Revolving Credit Facility, SPV Asset Facilities and CLOs. See Note 6 “Debt”.