INVESTMENTS - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details)
|
Sep. 30, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 2,509,771,000
|
$ 2,398,524,000
|
| Senior debt and 1st lien notes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
1,771,736,000
|
1,676,334,000
|
| Subordinated debt and 2nd lien notes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
233,332,000
|
190,290,000
|
| Structured products |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
23,350,000
|
29,627,000
|
| Equity shares |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
444,996,000
|
436,466,000
|
| Equity warrants |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
1,369,000
|
1,170,000
|
| Royalty rights |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
1,507,000
|
1,486,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
1,769,479,000
|
1,661,461,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Valuation, Unadjusted Prices From Independent Pricing Services And Independent Indicative Broker Quotes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
|
14,820,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,418,617,000
|
$ 1,370,510,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.074
|
0.066
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.234
|
0.321
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.114
|
0.105
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Adjusted EBITDA Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 105,778,000
|
$ 62,428,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Adjusted EBITDA Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.2
|
0.2
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Adjusted EBITDA Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
12.7
|
12.0
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Adjusted EBITDA Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
8.5
|
6.5
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Tangible Book Value Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 3,333,000
|
|
| Input |
2.0
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Tangible Book Value Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
2.0
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Expected Recovery | Expected Recovery |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 6,474,000
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Expected Recovery | Expected Recovery | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1,703,800
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Expected Recovery | Expected Recovery | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
4,770,600
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Expected Recovery | Expected Recovery | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
3,963,500
|
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 235,277,000
|
$ 228,523,000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.975
|
0.980
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.000
|
1.000
|
| Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.987
|
0.990
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 233,332,000
|
$ 189,393,000
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Valuation, Unadjusted Prices From Independent Pricing Services And Independent Indicative Broker Quotes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
|
3,030,000
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 160,656,000
|
$ 135,739,000
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.086
|
0.080
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.392
|
0.225
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.134
|
0.129
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Adjusted EBITDA Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 43,909,000
|
$ 50,987,000
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Adjusted EBITDA Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.8
|
0.7
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Adjusted EBITDA Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
12.7
|
26.0
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Adjusted EBITDA Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
7.8
|
11.8
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Tangible Book Value Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 28,767,000
|
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Tangible Book Value Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.1
|
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Tangible Book Value Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
2.0
|
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Tangible Book Value Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.6
|
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Transaction Price | Recent Transaction |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
|
$ 2,667,000
|
| Input |
|
0.980
|
| Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Transaction Price | Recent Transaction | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
|
0.980
|
| Fair Value, Inputs, Level 3 | Structured products |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 15,209,000
|
$ 16,688,000
|
| Fair Value, Inputs, Level 3 | Structured products | Valuation, Unadjusted Prices From Independent Pricing Services And Independent Indicative Broker Quotes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
2,973,000
|
|
| Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 12,236,000
|
$ 1,868,000
|
| Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.061
|
0.093
|
| Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.119
|
0.103
|
| Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.112
|
0.098
|
| Fair Value, Inputs, Level 3 | Equity shares |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 435,495,000
|
$ 431,346,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Valuation, Unadjusted Prices From Independent Pricing Services And Independent Indicative Broker Quotes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
3,030,000
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 51,924,000
|
$ 44,513,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.129
|
0.110
|
| Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.295
|
0.328
|
| Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.185
|
0.169
|
| Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 112,123,000
|
$ 348,612,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.2
|
0.2
|
| Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
22.5
|
27.0
|
| Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
9.4
|
15.7
|
| Fair Value, Inputs, Level 3 | Equity shares | Tangible Book Value Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 233,879,000
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Tangible Book Value Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.1
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Tangible Book Value Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
2.0
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Tangible Book Value Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.6
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 8,560,000
|
$ 38,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
2,500
|
2,500
|
| Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
8,540,000
|
36,000.0
|
| Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
8,520,000
|
33,800
|
| Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 2,653,000
|
$ 8,584,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1.00
|
0.00
|
| Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
1,000
|
1,000
|
| Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
133.76
|
31.33
|
| Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 95,000
|
$ 756,000
|
| Input |
7.5
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
|
5.3
|
| Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
|
8.5
|
| Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
7.5
|
5.7
|
| Fair Value, Inputs, Level 3 | Equity shares | Volatility | Black-Scholes |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 362,000
|
|
| Input |
0.400
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Volatility | Black-Scholes | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.400
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Discount Rate | Discounted Cash Flow Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 21,285,000
|
$ 19,983,000
|
| Input |
0.134
|
0.124
|
| Fair Value, Inputs, Level 3 | Equity shares | Discount Rate | Discounted Cash Flow Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.134
|
0.124
|
| Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,584,000
|
$ 5,830,000
|
| Input |
57,947,300
|
|
| Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
|
93,817,900
|
| Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
|
117,319,900
|
| Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
57,947,300
|
105,349,000
|
| Fair Value, Inputs, Level 3 | Equity warrants |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,369,000
|
$ 1,170,000
|
| Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,366,000
|
$ 1,167,000
|
| Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.4
|
0.5
|
| Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
11.3
|
11.3
|
| Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
11.1
|
11.3
|
| Fair Value, Inputs, Level 3 | Equity warrants | Expected Recovery | Expected Recovery |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 3,000
|
$ 3,000
|
| Input |
3,000.0
|
3,000.0
|
| Fair Value, Inputs, Level 3 | Equity warrants | Expected Recovery | Expected Recovery | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
3,000.0
|
3,000.0
|
| Fair Value, Inputs, Level 3 | Royalty rights |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,507,000
|
$ 1,486,000
|
| Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Fair Value |
$ 1,507,000
|
$ 1,486,000
|
| Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Minimum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.260
|
0.280
|
| Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Maximum |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.280
|
0.300
|
| Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Weighted Average |
|
|
| Schedule of Equity Method Investments [Line Items] |
|
|
| Input |
0.270
|
0.290
|