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Fair Value of Investments - Schedule of Carrying and Fair Values of the Company’s Debt Obligations (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Debt Instrument [Line Items] |  |
Net Carrying Value | $ 7,905,429 | $ 9,272,214
Debt Issuance Costs | (101,772) | (93,186)
Level 1 |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 0
Level 2 |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 5,268,750 | 4,967,188
Level 3 |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 2,636,679 | 4,305,026
Net Carrying Value |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 7,903,533 | 9,300,076
Fair Value |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 7,905,429 | 9,272,214
SPV Asset Facility II | Line of Credit |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (5,295) | (5,562)
SPV Asset Facility II | Net Carrying Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 250,905 | 156,138
SPV Asset Facility II | Fair Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 250,905 | 156,138
SPV Asset Facility V | Line of Credit |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (4,412) | (5,001)
SPV Asset Facility V | Net Carrying Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 426,088 | 378,999
SPV Asset Facility V | Fair Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 426,088 | 378,999
SPV Asset Facility VI | Line of Credit |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (3,530) | (4,041)
SPV Asset Facility VI | Net Carrying Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 306,470 | 295,959
SPV Asset Facility VI | Fair Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 306,470 | 295,959
SPV Asset Facility VII | Line of Credit |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | 0 | (1,601)
SPV Asset Facility VII | Net Carrying Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 208,399
SPV Asset Facility VII | Fair Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 208,399
CLO I | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | 0 | (3,489)
CLO I | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 386,511
CLO I | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 386,511
CLO III | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (1,638) | (1,727)
CLO III | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 258,362 | 258,273
CLO III | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 258,362 | 258,273
CLO IV | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (2,782) | (3,346)
CLO IV | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 217,166 | 272,117
CLO IV | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 217,166 | 272,117
CLO V | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (1,939) | (2,062)
CLO V | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 507,686 | 507,563
CLO V | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 507,686 | 507,563
CLO VII | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (2,041) | (2,127)
CLO VII | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 328,459 | 328,373
CLO VII | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 328,459 | 328,373
CLO X | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (1,833) | (1,797)
CLO X | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 270,167 | 270,203
CLO X | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 270,167 | 270,203
CLO XIV | Secured Debt |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | 0 | (1,578)
CLO XIV | Net Carrying Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 258,422
CLO XIV | Fair Value | Secured Debt |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 258,422
2026 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | 0 | (91)
2026 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 499,909
2026 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 0 | 498,750
July 2026 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (197) | (2,717)
July 2026 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 999,803 | 997,283
July 2026 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 1,000,000 | 992,500
2027 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (9,073) | (2,117)
2027 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 489,826 | 483,987
2027 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 492,500 | 488,750
April 2027 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (665) | (1,078)
April 2027 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 324,335 | 323,922
April 2027 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 320,125 | 317,688
July 2027 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (962) | (1,389)
July 2027 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 249,038 | 248,611
July 2027 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 250,000 | 250,000
2028 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (5,251) | (6,549)
2028 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 844,749 | 843,451
2028 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 805,375 | 803,250
June 2028 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (469) | (585)
June 2028 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 99,531 | 99,415
June 2028 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 100,000 | 100,000
September 2028 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (2,861) | 0
September 2028 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 393,582 | 0
September 2028 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 404,000 | 0
2029 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (6,965) | (8,373)
2029 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 986,672 | 1,002,667
2029 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 1,000,000 | 1,010,000
2030 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (9,041) | (10,025)
2030 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 486,848 | 495,805
2030 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 498,750 | 506,250
2031 Notes | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (8,694) | 0
2031 Notes | Net Carrying Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 392,470 | 0
2031 Notes | Fair Value | Unsecured debt investments |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 398,000 | 0
Revolving Credit Facility | Revolving Credit Facility | Line of Credit |  |
Debt Instrument [Line Items] |  |
Debt Issuance Costs | (34,124) | (27,931)
Revolving Credit Facility | Revolving Credit Facility | Net Carrying Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | 71,376 | 984,069
Revolving Credit Facility | Revolving Credit Facility | Fair Value | Line of Credit |  |
Debt Instrument [Line Items] |  |
Net Carrying Value | $ 71,376 | $ 984,069

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