Fair Value of Investments - Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value (Details) - Level 3 - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
$ 2,495,329
|
$ 2,077,116
|
$ 2,391,216
|
$ 1,961,547
|
| Purchases of investments, net |
176,828
|
341,328
|
359,366
|
598,626
|
| Proceeds from sales and principal payments, net |
(157,034)
|
(180,455)
|
(239,797)
|
(331,631)
|
| Realized gain (loss) on investments |
1,923
|
1,455
|
2,548
|
3,448
|
| Net change in unrealized appreciation/(depreciation) |
$ 1,549
|
$ 507
|
$ 1,804
|
$ 6,723
|
| Net change in unrealized appreciation/(depreciation) |
Realized and Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax
|
Realized and Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax
|
Realized and Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax
|
Realized and Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax
|
| Net accretion of discount and amortization of investments |
$ 1,906
|
$ 2,802
|
$ 5,364
|
$ 4,039
|
| Transfers in (out) of Level 3 |
0
|
(11,863)
|
0
|
(11,862)
|
| Fair value, end of period |
2,520,501
|
2,230,890
|
2,520,501
|
2,230,890
|
| First Lien Loans |
|
|
|
|
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
2,263,619
|
1,787,311
|
2,175,756
|
1,723,677
|
| Purchases of investments, net |
173,248
|
296,975
|
339,411
|
484,606
|
| Proceeds from sales and principal payments, net |
(157,034)
|
(125,846)
|
(239,793)
|
(258,139)
|
| Realized gain (loss) on investments |
$ 1,923
|
$ 2,290
|
$ 2,547
|
$ 4,260
|
| Realized gain (loss) on investments |
Debt and Equity Securities, Realized Gain (Loss)
|
Debt and Equity Securities, Realized Gain (Loss)
|
Debt and Equity Securities, Realized Gain (Loss)
|
Debt and Equity Securities, Realized Gain (Loss)
|
| Net change in unrealized appreciation/(depreciation) |
$ 371
|
$ (2,120)
|
$ 871
|
$ 3,135
|
| Net accretion of discount and amortization of investments |
1,808
|
2,669
|
5,143
|
3,740
|
| Transfers in (out) of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
2,283,935
|
1,961,279
|
2,283,935
|
1,961,279
|
| Second Lien Loans |
|
|
|
|
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
80,945
|
201,896
|
79,596
|
151,404
|
| Purchases of investments, net |
281
|
29,973
|
1,960
|
98,330
|
| Proceeds from sales and principal payments, net |
0
|
(34,918)
|
(4)
|
(53,801)
|
| Realized gain (loss) on investments |
0
|
(835)
|
0
|
(812)
|
| Net change in unrealized appreciation/(depreciation) |
829
|
2,281
|
466
|
3,173
|
| Net accretion of discount and amortization of investments |
24
|
60
|
61
|
162
|
| Transfers in (out) of Level 3 |
0
|
(11,863)
|
0
|
(11,862)
|
| Fair value, end of period |
82,079
|
186,594
|
82,079
|
186,594
|
| Unsecured Note |
|
|
|
|
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
101,708
|
49,347
|
87,941
|
48,333
|
| Purchases of investments, net |
2,048
|
9,741
|
15,744
|
10,186
|
| Proceeds from sales and principal payments, net |
0
|
(19,691)
|
0
|
(19,691)
|
| Realized gain (loss) on investments |
0
|
0
|
2
|
0
|
| Net change in unrealized appreciation/(depreciation) |
162
|
(792)
|
170
|
(268)
|
| Net accretion of discount and amortization of investments |
55
|
52
|
116
|
97
|
| Transfers in (out) of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
103,973
|
38,657
|
103,973
|
38,657
|
| Preferred Equity |
|
|
|
|
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
37,257
|
28,951
|
36,227
|
27,540
|
| Purchases of investments, net |
1,251
|
4,639
|
2,238
|
5,504
|
| Proceeds from sales and principal payments, net |
0
|
|
0
|
0
|
| Realized gain (loss) on investments |
0
|
0
|
(1)
|
0
|
| Net change in unrealized appreciation/(depreciation) |
56
|
74
|
75
|
601
|
| Net accretion of discount and amortization of investments |
19
|
21
|
44
|
40
|
| Transfers in (out) of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
38,583
|
33,685
|
38,583
|
33,685
|
| Common Equity & Warrants |
|
|
|
|
| Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value |
|
|
|
|
| Fair value, beginning of period |
11,800
|
9,611
|
11,696
|
10,593
|
| Purchases of investments, net |
0
|
|
13
|
0
|
| Proceeds from sales and principal payments, net |
0
|
|
0
|
0
|
| Realized gain (loss) on investments |
0
|
0
|
0
|
0
|
| Net change in unrealized appreciation/(depreciation) |
131
|
1,064
|
222
|
82
|
| Net accretion of discount and amortization of investments |
0
|
|
0
|
0
|
| Transfers in (out) of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
$ 11,931
|
$ 10,675
|
$ 11,931
|
$ 10,675
|