Quarterly report pursuant to Section 13 or 15(d)

Investments - Investments at Fair Value and Amortized Cost (Details)

v3.22.2.2
Investments - Investments at Fair Value and Amortized Cost (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]    
Amortized Cost $ 12,931,859 [1],[2],[3],[4],[5] $ 12,648,553 [6],[7],[8],[9],[10]
Fair Value 12,835,918 [2],[4],[5] 12,741,640 [7],[9],[10]
First-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 9,367,994 9,548,096
Fair Value 9,264,249 9,539,774
Second-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 1,930,111 1,919,453
Fair Value 1,846,431 1,921,447
Unsecured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 277,375 197,198
Fair Value 237,375 196,485
Preferred equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 340,145 256,630
Fair Value 329,451 260,869
Common equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 671,145 477,462
Fair Value 844,502 576,004
Investment funds and vehicles    
Schedule of Investments [Line Items]    
Amortized Cost 345,089 249,714
Fair Value $ 313,910 $ 247,061
[1] As of September 30, 2022, the net estimated unrealized loss for U.S. federal income tax purposes was $189.9 million based on a tax cost basis $13.0 billion. As of September 30, 2022, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $413.0 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $223.1 million.
[2] Certain portfolio company investments are subject to contractual restrictions on sales. Refer to footnote 30 for additional information on our restricted securities.
[3] The amortized cost represents the original cost adjusted for the amortization or accretion of premium or discount , as applicable, on debt investments using the effective interest method.
[4] Unless otherwise indicated, all investments are considered Level 3 investments.
[5] 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”.
[6] As of December 31, 2021, the net estimated unrealized loss for U.S. federal income tax purposes was $36.8 million based on a tax cost basis of $12.8 billion. As of December 31, 2021, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $217.6 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $180.8 million.
[7] Certain portfolio company investments are subject to contractual restrictions on sales.
[8] The amortized cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[9] Unless otherwise indicated, all investments are considered Level 3 investments.
[10] 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”.