Fair Value of Financial Instruments - Schedule of Changes in the Fair Value of Investments (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| Total |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
$ 30,587,040
|
$ 23,600,920
|
$ 30,479,543
|
$ 21,098,813
|
| Purchases of investments, net |
1,477,758
|
3,525,341
|
3,256,928
|
6,204,048
|
| Payment-in-kind |
59,570
|
50,702
|
103,114
|
85,862
|
| Proceeds from investments, net |
(848,800)
|
(1,056,383)
|
(2,168,737)
|
(1,573,065)
|
| Net amortization/accretion of discount/premium on investments |
17,287
|
21,523
|
38,530
|
41,552
|
| Transfers between investment types |
|
|
|
(10,605)
|
| Transfers into (out of) Level 3 |
(220,258)
|
(408,588)
|
(334,679)
|
(123,695)
|
| Fair Value, End of Period |
31,006,991
|
25,715,859
|
31,006,991
|
25,715,859
|
| Total | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
2,245
|
14,840
|
(12,702)
|
(44,257)
|
| Total | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
(67,851)
|
(32,496)
|
(355,006)
|
37,206
|
| First-Lien Senior Secured |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
27,737,177
|
21,628,557
|
27,529,166
|
19,332,178
|
| Purchases of investments, net |
1,394,038
|
2,817,774
|
3,128,100
|
5,365,853
|
| Payment-in-kind |
22,382
|
16,301
|
42,870
|
30,051
|
| Proceeds from investments, net |
(826,113)
|
(973,825)
|
(2,100,057)
|
(1,453,791)
|
| Net amortization/accretion of discount/premium on investments |
16,570
|
19,918
|
37,117
|
38,564
|
| Transfers between investment types |
|
|
|
(16,148)
|
| Transfers into (out of) Level 3 |
(255,867)
|
(378,366)
|
(311,266)
|
(168,924)
|
| Fair Value, End of Period |
28,056,931
|
23,083,658
|
28,056,931
|
23,083,658
|
| First-Lien Senior Secured | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
1,415
|
3,357
|
(6,333)
|
(38,805)
|
| First-Lien Senior Secured | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
(32,671)
|
(50,058)
|
(262,666)
|
(5,320)
|
| Second-lien senior secured debt investments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
1,020,719
|
516,554
|
1,105,661
|
451,426
|
| Purchases of investments, net |
0
|
624,587
|
0
|
624,587
|
| Payment-in-kind |
3,892
|
3,767
|
7,757
|
6,035
|
| Proceeds from investments, net |
0
|
(18,907)
|
0
|
(26,507)
|
| Net amortization/accretion of discount/premium on investments |
297
|
915
|
587
|
1,115
|
| Transfers between investment types |
|
|
|
0
|
| Transfers into (out of) Level 3 |
90,045
|
(30,222)
|
32,076
|
49,285
|
| Fair Value, End of Period |
1,087,261
|
1,090,051
|
1,087,261
|
1,090,051
|
| Second-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
0
|
0
|
0
|
(11,345)
|
| Second-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
(27,692)
|
(6,643)
|
(58,820)
|
(4,545)
|
| Unsecured debt investments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
439,084
|
383,588
|
479,850
|
366,496
|
| Purchases of investments, net |
0
|
0
|
0
|
(369)
|
| Payment-in-kind |
10,999
|
12,126
|
19,213
|
22,853
|
| Proceeds from investments, net |
(5,584)
|
(29,854)
|
(47,956)
|
(29,854)
|
| Net amortization/accretion of discount/premium on investments |
90
|
332
|
231
|
887
|
| Transfers between investment types |
|
|
|
0
|
| Transfers into (out of) Level 3 |
(54,436)
|
0
|
(55,839)
|
0
|
| Fair Value, End of Period |
385,772
|
379,263
|
385,772
|
379,263
|
| Unsecured debt investments | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
585
|
1,659
|
4,277
|
(4,206)
|
| Unsecured debt investments | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
(4,966)
|
11,412
|
(14,004)
|
23,456
|
| Specialty Finance |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
136,796
|
104,262
|
134,800
|
90,736
|
| Purchases of investments, net |
10,249
|
8,409
|
10,250
|
21,936
|
| Payment-in-kind |
223
|
620
|
2,464
|
924
|
| Proceeds from investments, net |
(478)
|
0
|
(724)
|
0
|
| Net amortization/accretion of discount/premium on investments |
0
|
0
|
0
|
0
|
| Transfers between investment types |
|
|
|
0
|
| Transfers into (out of) Level 3 |
0
|
0
|
0
|
0
|
| Fair Value, End of Period |
146,790
|
113,291
|
146,790
|
113,291
|
| Specialty Finance | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
0
|
0
|
0
|
0
|
| Specialty Finance | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
0
|
0
|
0
|
(305)
|
| Preferred |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
506,595
|
431,404
|
496,312
|
359,901
|
| Purchases of investments, net |
0
|
25,660
|
9,879
|
111,079
|
| Payment-in-kind |
22,040
|
17,857
|
30,743
|
25,937
|
| Proceeds from investments, net |
(15,140)
|
(6,459)
|
(17,373)
|
(34,235)
|
| Net amortization/accretion of discount/premium on investments |
330
|
358
|
595
|
986
|
| Transfers between investment types |
|
|
|
3,817
|
| Transfers into (out of) Level 3 |
0
|
0
|
0
|
0
|
| Fair Value, End of Period |
491,965
|
470,384
|
491,965
|
470,384
|
| Preferred | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
19
|
64
|
(8,048)
|
339
|
| Preferred | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
(21,879)
|
1,500
|
(20,143)
|
2,560
|
| Common |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
305,124
|
214,793
|
291,027
|
206,420
|
| Purchases of investments, net |
15,249
|
6,855
|
48,138
|
17,695
|
| Payment-in-kind |
34
|
31
|
67
|
62
|
| Proceeds from investments, net |
(584)
|
(25,527)
|
(1,726)
|
(25,539)
|
| Net amortization/accretion of discount/premium on investments |
0
|
0
|
0
|
0
|
| Transfers between investment types |
|
|
|
1,726
|
| Transfers into (out of) Level 3 |
0
|
0
|
350
|
(4,056)
|
| Fair Value, End of Period |
335,534
|
204,366
|
335,534
|
204,366
|
| Common | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
226
|
9,760
|
(2,598)
|
9,760
|
| Common | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
15,485
|
(1,546)
|
276
|
(1,702)
|
| Specialty Finance |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
441,545
|
321,762
|
442,727
|
291,656
|
| Purchases of investments, net |
58,222
|
42,056
|
60,561
|
63,267
|
| Payment-in-kind |
0
|
0
|
0
|
0
|
| Proceeds from investments, net |
(901)
|
(1,811)
|
(901)
|
(3,139)
|
| Net amortization/accretion of discount/premium on investments |
0
|
0
|
0
|
0
|
| Transfers between investment types |
|
|
|
0
|
| Transfers into (out of) Level 3 |
0
|
0
|
0
|
0
|
| Fair Value, End of Period |
502,738
|
374,846
|
502,738
|
374,846
|
| Specialty Finance | Income Statement Location [Axis]: us-gaap:RealizedInvestmentGainsLosses |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
0
|
0
|
0
|
0
|
| Specialty Finance | Income Statement Location [Axis]: us-gaap:UnrealizedGainLossOnInvestments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Net change in unrealized gain (loss) / realized gain (loss) |
$ 3,872
|
$ 12,839
|
$ 351
|
$ 23,062
|