XML 53 R42.htm IDEA: XBRL DOCUMENT
v3.25.3

INVESTMENTS - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) | Sep. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
--- | --- | ---
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 2,536,315,000 | [1] | $ 2,449,272,000 | [2]
Senior debt and 1st lien notes |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 1,785,626,000 |  | 1,686,411,000 |
Subordinated debt and 2nd lien notes |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 201,371,000 |  | 165,455,000 |
Structured products |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 33,602,000 |  | 79,548,000 |
Equity shares |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 425,580,000 |  | 409,129,000 |
Equity warrants |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 1,068,000 |  | 2,732,000 |
Royalty rights |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 1,581,000 |  | 5,833,000 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | 1,738,067,000 |  | 1,625,501,000 |
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 |  |  | 3,840,000 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 1,482,773,000 |  | $ 1,323,618,000 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.066 |  | 0.065 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Market Yield | Yield Analysis | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.270 |  | 0.758 |
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 | 0.102 |  | 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 | $ 73,057,000 |  | $ 50,535,000 |
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 |  | 0.5 |
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 | 9.8 |  | 11.0 |
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 | 5.6 |  | 6.3 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 182,237,000 |  | $ 247,508,000 |
Fair Value, Inputs, Level 3 | Senior debt and 1st lien notes | Transaction Price | Recent Transaction | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.978 |  | 0.950 |
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 | 0.989 |  | 0.987 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 191,672,000 |  | $ 153,703,000 |
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 |  |  | 6,523,000 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 141,659,000 |  | $ 94,912,000 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Market Yield | Yield Analysis | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.070 |  | 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 | 0.215 |  | 0.186 |
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 | 0.130 |  | 0.127 |
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 | $ 47,513,000 |  | $ 47,775,000 |
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 | 0.7 |  | 0.9 |
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 | 25.9 |  | 22.4 |
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 | 11.9 |  | 11.7 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Expected Recovery | Expected Recovery |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value |  |  | $ 3,791,000 |
Input |  |  | 3,790,600 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Expected Recovery | Expected Recovery | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input |  |  | 3,790,600 |
Fair Value, Inputs, Level 3 | Subordinated debt and 2nd lien notes | Transaction Price | Recent Transaction |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 2,500,000 |  | $ 702,000 |
Input | 1.000 |  | 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 | 1.000 |  | 0.980 |
Fair Value, Inputs, Level 3 | Structured products |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 17,777,000 |  | $ 48,664,000 |
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 | 15,713,000 |  | 12,777,000 |
Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 2,064,000 |  | $ 28,904,000 |
Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.093 |  | 0.076 |
Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.103 |  | 0.103 |
Fair Value, Inputs, Level 3 | Structured products | Market Yield | Yield Analysis | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.098 |  | 0.082 |
Fair Value, Inputs, Level 3 | Structured products | Expected Recovery | Expected Recovery |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value |  |  | $ 1,733,000 |
Input |  |  | 1,733,300 |
Fair Value, Inputs, Level 3 | Structured products | Expected Recovery | Expected Recovery | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input |  |  | 1,733,300 |
Fair Value, Inputs, Level 3 | Structured products | Transaction Price | Recent Transaction |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value |  |  | $ 5,250,000 |
Input |  |  | 1.000 |
Fair Value, Inputs, Level 3 | Structured products | Transaction Price | Recent Transaction | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input |  |  | 1.000 |
Fair Value, Inputs, Level 3 | Equity shares |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 420,943,000 |  | $ 408,475,000 |
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 | 2,886,000 |  | 6,884,000 |
Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 44,191,000 |  | $ 30,302,000 |
Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.117 |  | 0.108 |
Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.294 |  | 0.305 |
Fair Value, Inputs, Level 3 | Equity shares | Market Yield | Yield Analysis | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.169 |  | 0.157 |
Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 341,961,000 |  | $ 339,142,000 |
Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.2 |  | 0.5 |
Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 27.5 |  | 28.5 |
Fair Value, Inputs, Level 3 | Equity shares | Adjusted EBITDA Multiple | Market Approach | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 13.7 |  | 12.9 |
Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 784,000 |  | $ 1,353,000 |
Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 5.5 |  | 5.5 |
Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 8.8 |  | 8.8 |
Fair Value, Inputs, Level 3 | Equity shares | Revenue Multiple | Market Approach | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 5.9 |  | 6.0 |
Fair Value, Inputs, Level 3 | Equity shares | Discount Rate | Discounted Cash Flow Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 19,983,000 |  | $ 16,852,000 |
Input | 0.124 |  | 0.129 |
Fair Value, Inputs, Level 3 | Equity shares | Discount Rate | Discounted Cash Flow Analysis | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.124 |  | 0.129 |
Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 5,492,000 |  | $ 3,875,000 |
Input |  |  | 96,678,300 |
Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 45,292,500 |  |  |
Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 117,088,000 |  |  |
Fair Value, Inputs, Level 3 | Equity shares | Liabilities | Net Asset Approach | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 80,417,900 |  | 96,678,300 |
Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 44,000 |  | $ 59,000 |
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 | 41,700 |  | 56,900 |
Fair Value, Inputs, Level 3 | Equity shares | Expected Recovery | Expected Recovery | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 39,500 |  | 54,600 |
Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 5,602,000 |  | $ 10,008,000 |
Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.00 |  | 1.00 |
Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 100.00 |  | 1,847.58 |
Fair Value, Inputs, Level 3 | Equity shares | Transaction Price | Recent Transaction | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 2.81 |  | 1,525.9 |
Fair Value, Inputs, Level 3 | Equity warrants |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 1,068,000 |  | $ 2,732,000 |
Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 1,065,000 |  | $ 2,729,000 |
Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.5 |  | 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 |  | 11.8 |
Fair Value, Inputs, Level 3 | Equity warrants | Adjusted EBITDA Multiple | Market Approach | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 11.3 |  | 8.1 |
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 | $ 1,581,000 |  | $ 5,833,000 |
Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Fair Value | $ 1,581,000 |  | $ 5,833,000 |
Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Minimum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.280 |  | 0.186 |
Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Maximum |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.300 |  | 0.264 |
Fair Value, Inputs, Level 3 | Royalty rights | Market Yield | Yield Analysis | Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Input | 0.290 |  | 0.210 |
[1] | All of the investment is or will be encumbered as security for the Company’s $0.7 billion senior secured credit facility with ING Capital LLC (“ING”) initially entered into in February 2019 (as amended, restated and otherwise modified from time to time, the “February 2019 Credit Facility”).
[2] | All of the investment is or will be encumbered as security for the Company’s $0.8 billion February 2019 Credit Facility with ING.

X
- Definition Value of input used to measure investment owned by investment company. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_InvestmentCompanyInvestmentOwnedFairValueMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value of investment in security owned. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(11)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477439/946-210-55-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-6 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-2 Reference 11: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-12 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-6 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(2)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column C)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column A)(Footnote 1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column C)(Footnote 5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column C)(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column C)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column C)(Footnote 2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column A)(Footnote 6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column A)(Footnote 7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column C)(Footnote 9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column F)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column A)(Footnote 1)(b)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column A)(Footnote 1)(b)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column F)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column F)(Footnote 7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 + Details
Name: | us-gaap_InvestmentOwnedAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=bbdc_DebtSecuritiesSeniorDebtAnd1stLienNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=bbdc_DebtSecuritiesSubordinatedDebtAnd2ndLienNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=bbdc_StructuredProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=bbdc_EquityWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=bbdc_RoyaltyRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=bbdc_ValuationUnadjustedPricesFromIndependentPricingServicesAndIndependentIndicativeBrokerQuotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=bbdc_MeasurementInputMarketYieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=bbdc_ValuationYieldAnalysisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputEbitdaMultipleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=bbdc_MeasurementInputTransactionPriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=bbdc_ValuationRecentTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=bbdc_MeasurementInputExpectedRecoveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=bbdc_ValuationTechniqueExpectedRecoveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRevenueMultipleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueDiscountedCashFlowMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=bbdc_MeasurementInputLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=bbdc_ValuationTechniqueNetAssetApproachMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |