FAIR VALUE MEASUREMENTS - Level III Rollforward (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
$ 2,119,893
|
$ 1,996,123
|
$ 2,148,640
|
$ 1,962,431
|
| Purchases of investments |
142,872
|
77,312
|
258,516
|
167,912
|
| Proceeds from principal repayments and sales of investments |
(70,553)
|
(50,170)
|
196,930
|
(132,389)
|
| Accretion of discount/amortization of premium |
2,062
|
1,793
|
(3,999)
|
3,553
|
| Payment-in-kind |
3,934
|
2,664
|
6,247
|
6,595
|
| Transfers into/out of Level 3 |
24,163
|
0
|
24,912
|
27,856
|
| Fair value, end of period |
2,207,647
|
2,019,809
|
2,207,647
|
2,019,809
|
| Net change in unrealized appreciation (depreciation) from investments still held |
$ (3,354)
|
$ (7,976)
|
$ (8,457)
|
$ (11,557)
|
| Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Debt and Equity Securities, Unrealized Gain (Loss)
|
Debt and Equity Securities, Unrealized Gain (Loss)
|
Debt and Equity Securities, Unrealized Gain (Loss)
|
Debt and Equity Securities, Unrealized Gain (Loss)
|
| Net change in unrealized appreciation (depreciation) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Investments
|
Investments
|
Investments
|
Investments
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
$ (3,368)
|
$ (7,950)
|
$ (9,599)
|
$ (12,527)
|
| Net realized gains (losses) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
|
|
|
|
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |
Net Realized Gain (Loss)
|
Net Realized Gain (Loss)
|
Net Realized Gain (Loss)
|
Net Realized Gain (Loss)
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
$ (11,355)
|
$ 37
|
$ (28,138)
|
$ (3,622)
|
| First Lien Debt |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
2,083,653
|
1,956,062
|
2,108,149
|
1,934,010
|
| Purchases of investments |
133,467
|
77,312
|
242,811
|
153,732
|
| Proceeds from principal repayments and sales of investments |
(70,383)
|
(50,170)
|
(189,000)
|
(130,287)
|
| Accretion of discount/amortization of premium |
2,059
|
1,791
|
3,971
|
3,545
|
| Payment-in-kind |
2,314
|
1,967
|
4,022
|
5,680
|
| Transfers into/out of Level 3 |
24,163
|
0
|
24,912
|
27,856
|
| Fair value, end of period |
2,162,432
|
1,980,167
|
2,162,432
|
1,980,167
|
| Net change in unrealized appreciation (depreciation) from investments still held |
(1,469)
|
(6,858)
|
(3,171)
|
(9,348)
|
| First Lien Debt | Net change in unrealized appreciation (depreciation) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
(1,483)
|
(6,832)
|
(4,292)
|
(9,882)
|
| First Lien Debt | Net realized gains (losses) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
(11,358)
|
37
|
(28,141)
|
(4,487)
|
| Second Lien Debt |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
7,501
|
12,669
|
13,335
|
4,065
|
| Purchases of investments |
0
|
0
|
0
|
8,642
|
| Proceeds from principal repayments and sales of investments |
0
|
0
|
(5,970)
|
0
|
| Accretion of discount/amortization of premium |
(3)
|
(2)
|
(6)
|
1
|
| Payment-in-kind |
111
|
178
|
267
|
241
|
| Transfers into/out of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
7,446
|
12,932
|
7,446
|
12,932
|
| Net change in unrealized appreciation (depreciation) from investments still held |
(169)
|
87
|
(192)
|
(17)
|
| Second Lien Debt | Net change in unrealized appreciation (depreciation) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
(169)
|
87
|
(192)
|
(17)
|
| Second Lien Debt | Net realized gains (losses) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
0
|
0
|
0
|
0
|
| Other Debt Investments |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
5,610
|
7,487
|
8,029
|
4,527
|
| Purchases of investments |
0
|
0
|
0
|
2,881
|
| Proceeds from principal repayments and sales of investments |
0
|
0
|
1,789
|
0
|
| Accretion of discount/amortization of premium |
0
|
4
|
(22)
|
7
|
| Payment-in-kind |
207
|
201
|
424
|
310
|
| Transfers into/out of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
5,059
|
7,655
|
5,059
|
7,655
|
| Net change in unrealized appreciation (depreciation) from investments still held |
(758)
|
(37)
|
(1,606)
|
(70)
|
| Other Debt Investments | Net change in unrealized appreciation (depreciation) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
(758)
|
(37)
|
(1,627)
|
(70)
|
| Other Debt Investments | Net realized gains (losses) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
0
|
0
|
0
|
0
|
| Equity |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Fair value, beginning of period |
23,129
|
19,905
|
19,127
|
19,829
|
| Purchases of investments |
9,405
|
0
|
15,705
|
2,657
|
| Proceeds from principal repayments and sales of investments |
(170)
|
0
|
170
|
(2,102)
|
| Accretion of discount/amortization of premium |
0
|
0
|
0
|
0
|
| Payment-in-kind |
1,302
|
318
|
1,534
|
364
|
| Transfers into/out of Level 3 |
0
|
0
|
0
|
0
|
| Fair value, end of period |
32,711
|
19,055
|
32,711
|
19,055
|
| Net change in unrealized appreciation (depreciation) from investments still held |
(958)
|
(1,168)
|
(3,488)
|
(2,122)
|
| Equity | Net change in unrealized appreciation (depreciation) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
(958)
|
(1,168)
|
(3,488)
|
(2,558)
|
| Equity | Net realized gains (losses) |
|
|
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
|
|
|
|
| Total gains (losses) included in earnings |
$ 3
|
$ 0
|
$ 3
|
$ 865
|