Investment Portfolio - Individual Loans in COPJV’s portfolio (Details) € in Millions, £ in Millions, kr in Millions, kr in Millions, $ in Millions, $ in Millions		Mar. 31, 2023 USD ($) company		Mar. 31, 2023 SEK (kr) company		Mar. 31, 2023 ISK (kr) company		Mar. 31, 2023 EUR (€) company		Mar. 31, 2023 GBP (£) company		Mar. 31, 2023 AUD ($) company		Mar. 31, 2023 CAD ($) company		Dec. 31, 2022 USD ($) company		Dec. 31, 2022 SEK (kr) company		Dec. 31, 2022 ISK (kr) company		Dec. 31, 2022 EUR (€) company		Dec. 31, 2022 GBP (£) company		Dec. 31, 2022 AUD ($) company		Dec. 31, 2022 CAD ($) company
Debt Securities
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 941,900,000														$ 952,400,000
Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Number of portfolio companies in COPJV | company		122		122		122		122		122		122		122		122		122		122		122		122		122		122
Credit Opportunities Partners JV, LLC | Debt Securities
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 3,254,600,000														$ 3,363,800,000
Credit Opportunities Partners JV, LLC | Weighted Average | Debt Securities
Investment Company, Nonconsolidated Subsidiary [Line Items]
Weighted average annual yield on accruing debt investments		11.30%		11.30%		11.30%		11.30%		11.30%		11.30%		11.30%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: 3Pillar Global Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 8,600,000
Investment, Identifier [Axis]: 3Pillar Global Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		24,000,000.0
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		600,000	[1],[2]													$ 101,000,000.0	[3],[4],[5],[6],[7]
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		95,100,000	[1],[8],[9],[10]													9,200,000	[3],[11]
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,600,000	[1],[2]													24,900,000	[3],[11]
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	8,600,000
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	24,000,000.0
Investment, Identifier [Axis]: 48Forty Solutions LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,600,000
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,300,000														19,400,000
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		182,200,000	[1],[2],[9],[10],[13],[14]													182,700,000	[3],[4],[5],[6],[15],[16]
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,100,000	[1],[2]													10,600,000	[3],[11]
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	9,600,000
Investment, Identifier [Axis]: 5 Arch Income Fund 2 LLC, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[17],[18],[19],[20],[21]															$ 95,500,000
Weighted average annual yield on accruing debt investments	[17],[18],[19],[20],[21],[22]															9.00%		9.00%		9.00%		9.00%		9.00%		9.00%		9.00%
Investment, Identifier [Axis]: 5 Arch Income Fund 2 LLC, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[23],[24],[25],[26],[27]	88,600,000
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Structure Mezzanine, Equity Real Estate Investment Trusts (REITs)
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27],[28]	58,900,000
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Structure Mezzanine, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[29]															$ 58,900,000
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		55,600,000	[1],[2],[27],[28],[30]													40,600,000	[3],[6],[21],[29],[31]
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		31,300,000	[2],[27],[28],[30]													21,900,000	[3],[6],[21],[29],[31],[32]
Investment, Identifier [Axis]: Access CIG LLC, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,500,000														2,500,000
Investment, Identifier [Axis]: Accuride Corp, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		8,900,000	[1],[10],[33]													8,900,000	[3],[5],[34]
Investment, Identifier [Axis]: Accuride Corp, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		20,700,000														20,800,000
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,600,000
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,200,000
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		46,200,000	[1],[2],[14],[35]													46,300,000	[3],[6],[16],[36]
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,600,000	[1],[12]													2,200,000	[3],[11]
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,200,000	[1],[12]													3,600,000	[3],[11]
Investment, Identifier [Axis]: Advanced Lighting Technologies Inc, Materials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[17],[20]															13,500,000
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | kr				kr 933.6	[1],[2],[27]													kr 933.6	[3],[6],[21]
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | kr				kr 588.0														kr 588.0
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | kr						kr 1,345.8	[1],[2],[27]													kr 1,345.8	[3],[6],[21]
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | kr						kr 1,644.9														kr 1,644.9
Investment, Identifier [Axis]: Affordable Care Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		12,800,000
Investment, Identifier [Axis]: Affordable Care Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		25,700,000
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		76,200,000														76,100,000
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		56,400,000	[1],[2],[35],[37]													53,600,000	[3],[6],[36],[38]
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		12,800,000	[1],[12],[37]													1,400,000	[3],[6],[38]
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,700,000	[1],[12],[37]													28,400,000	[3],[11],[38]
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11],[38]															11,400,000
Investment, Identifier [Axis]: Alacrity Solutions Group LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		5,900,000
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		40,400,000														40,600,000
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,900,000	[1],[2]													28,400,000	[3],[6]
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		28,300,000	[1],[2],[35]													10,800,000	[3],[11]
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	5,900,000
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		32,200,000														32,300,000
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,100,000	[1],[35]													9,200,000	[3],[36]
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		22,500,000	[1],[2],[35]													22,500,000	[3],[6],[36]
Investment, Identifier [Axis]: Alstom SA, Transportation | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,300,000														6,200,000
Investment, Identifier [Axis]: American Airlines Group Inc, Transportation | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																2,500,000
Investment, Identifier [Axis]: American Vision Partners
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		4,700,000
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,500,000														19,500,000
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,100,000	[1],[2]													113,000,000.0	[3],[6],[7]
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		74,100,000	[1],[2],[8]													7,800,000	[3],[11]
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	38,600,000
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	4,700,000
Investment, Identifier [Axis]: Amerivet Partners Management Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		8,400,000
Investment, Identifier [Axis]: Amerivet Partners Management Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		48,800,000
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		113,600,000	[1],[2]													95,400,000	[3],[6]
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		8,400,000	[1],[12]													17,200,000	[3],[6]
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		48,800,000	[1],[12]													8,400,000	[3],[11]
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															50,100,000
Investment, Identifier [Axis]: Ammeraal Beltech Holding BV, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		23,600,000	[1],[2],[13],[27],[30]													23,600,000	[3],[6],[15],[21],[31]
Investment, Identifier [Axis]: Ammeraal Beltech Holding BV, Capital Goods 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 4.8														€ 4.8
Investment, Identifier [Axis]: Ammeraal Beltech Holding BV, Capital Goods 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		42,800,000														42,800,000
Investment, Identifier [Axis]: Angelica Corp, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		59,000,000.0	[1],[23],[26],[39]													59,000,000.0	[3],[17],[20],[40]
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[34]															2,500,000
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																4,200,000
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[3],[6],[21],[34]																					2.0
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €																						1.6
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															55,000,000.0
Investment, Identifier [Axis]: Apex Group Limited, Diversified Financials 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																40,000,000.0
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[27],[33],[35]	2,500,000
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,200,000
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[2],[27],[33]							2.0
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								1.6
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	55,000,000.0
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		40,000,000.0
Investment, Identifier [Axis]: Arcfield Acquisition Corp
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		7,100,000
Investment, Identifier [Axis]: Arcfield Acquisition Corp, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		8,000,000.0														8,000,000.0
Investment, Identifier [Axis]: Arcfield Acquisition Corp, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		40,200,000	[1],[8],[14]													40,300,000	[3],[7],[16]
Investment, Identifier [Axis]: Arcfield Acquisition Corp, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,100,000	[1],[12]													7,100,000	[3],[11]
Investment, Identifier [Axis]: Arcos LLC/VA
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		4,500,000
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		22,200,000														22,200,000
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		12,300,000	[1],[35]													12,300,000	[3],[36]
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,500,000	[1],[12]													4,500,000	[3],[11]
Investment, Identifier [Axis]: Ardonagh Group Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,900,000
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 0.8	[1],[2],[27]													£ 0.8	[3],[6],[21]
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 3.8														£ 3.8
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								19.0	[1],[2],[27]													19.0	[3],[6],[21]
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 0.5														€ 0.5
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,900,000	[1],[2],[27]													$ 1,000,000.0	[3],[6],[21],[34]
Weighted average annual yield on accruing debt investments	[6],[21],[22],[34]															11.50%		11.50%		11.50%		11.50%		11.50%		11.50%		11.50%
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		54,800,000														$ 54,800,000
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12],[27]	9,900,000
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[27],[33]	1,000,000.0
Investment, Identifier [Axis]: Arrotex Australia Group Pty Ltd, Pharmaceuticals, Biotechnology & Life Sciences 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 42.6	[1],[2],[27]													$ 42.6	[3],[6],[21]
Investment, Identifier [Axis]: Arrotex Australia Group Pty Ltd, Pharmaceuticals, Biotechnology & Life Sciences 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												109.4														109.4
Investment, Identifier [Axis]: Arrotex Australia Group Pty Ltd, Pharmaceuticals, Biotechnology & Life Sciences 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												3.1	[1],[2],[27]													3.1	[3],[6],[21]
Investment, Identifier [Axis]: Arrotex Australia Group Pty Ltd, Pharmaceuticals, Biotechnology & Life Sciences 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												8.0														8.0
Investment, Identifier [Axis]: Arrotex Australia Group Pty Ltd, Pharmaceuticals, Biotechnology & Life Sciences 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 25.0														$ 25.0
Investment, Identifier [Axis]: Asset Based Finance
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments
Investment, Identifier [Axis]: AxiomSL Ltd 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,500,000
Investment, Identifier [Axis]: AxiomSL Ltd 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,300,000
Investment, Identifier [Axis]: AxiomSL Ltd, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,600,000	[1],[2],[13],[14],[35]													34,700,000	[3],[6],[15],[16],[36]
Investment, Identifier [Axis]: AxiomSL Ltd, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,500,000	[1],[12]													2,500,000	[3],[11]
Investment, Identifier [Axis]: AxiomSL Ltd, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,300,000	[1],[12]													2,300,000	[3],[11]
Investment, Identifier [Axis]: BGB Group LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		19,900,000
Investment, Identifier [Axis]: BGB Group LLC, Media & Entertainment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		54,200,000														54,400,000
Investment, Identifier [Axis]: BGB Group LLC, Media & Entertainment 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		110,800,000	[1],[8],[9],[10],[13],[14],[35]													111,100,000	[3],[4],[5],[7],[15],[16],[36]
Investment, Identifier [Axis]: BGB Group LLC, Media & Entertainment 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,900,000	[1],[12]													19,900,000	[3],[11]
Investment, Identifier [Axis]: Bankers Healthcare Group LLC, Term Loan, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															11,300,000
Investment, Identifier [Axis]: Bankers Healthcare Group LLC, Term Loan, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	11,300,000
Investment, Identifier [Axis]: Barbri Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,100,000
Investment, Identifier [Axis]: Barbri Inc, Consumer Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		47,100,000														47,200,000
Investment, Identifier [Axis]: Barbri Inc, Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		61,300,000	[1],[9],[10],[13],[14],[35]													61,500,000	[3],[4],[5],[15],[16],[36]
Investment, Identifier [Axis]: Barbri Inc, Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		29,900,000	[1],[2]													70,300,000	[3],[4],[5],[6]
Investment, Identifier [Axis]: Barbri Inc, Consumer Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,700,000	[1],[9],[10]													9,100,000	[3],[11]
Investment, Identifier [Axis]: Barbri Inc, Consumer Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	5,600,000
Investment, Identifier [Axis]: Barbri Inc, Consumer Services 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	9,100,000
Investment, Identifier [Axis]: BearCom Acquisition Corp, Technology Hardware & Equipment 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,200,000														2,200,000
Investment, Identifier [Axis]: BearCom Acquisition Corp, Technology Hardware & Equipment 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount														$ 14.2														$ 14.3
Investment, Identifier [Axis]: BearCom Acquisition Corp, Technology Hardware & Equipment 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount														$ 1.3														$ 1.3
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[33],[37]	21,900,000
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		600,000
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[23],[26],[33],[37]	72,100,000
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 3,100,000
Weighted average annual yield on accruing debt investments		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[23],[26],[37]	$ 28,900,000
Investment, Identifier [Axis]: Belk Inc, Retailing 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[34],[38]															21,900,000
Investment, Identifier [Axis]: Belk Inc, Retailing 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																600,000
Investment, Identifier [Axis]: Belk Inc, Retailing 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[17],[20],[34],[38]															$ 71,000,000.0
Weighted average annual yield on accruing debt investments	[6],[17],[20],[22],[34],[38]															5.00%		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%
Investment, Identifier [Axis]: Belk Inc, Retailing 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																$ 3,100,000
Weighted average annual yield on accruing debt investments																5.00%		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%
Investment, Identifier [Axis]: Belk Inc, Retailing 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[17],[20],[38]															$ 28,200,000
Investment, Identifier [Axis]: Big Bus Tours Ltd, Consumer Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,100,000														10,700,000
Investment, Identifier [Axis]: Big Bus Tours Ltd, Consumer Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 12.7														€ 12.6
Investment, Identifier [Axis]: Big Bus Tours Ltd, Consumer Services 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																7,200,000
Investment, Identifier [Axis]: Bowery Farming Inc, Food, Beverage & Tobacco
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		75,000,000.0	[1],[2]													75,000,000.0	[3],[6]
Investment, Identifier [Axis]: Bugaboo International BV, Consumer Durables & Apparel | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								35.0														35.0
Investment, Identifier [Axis]: Byrider Finance LLC, Structured Mezzanine, Automobiles & Components 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															16,200,000
Investment, Identifier [Axis]: Byrider Finance LLC, Structured Mezzanine, Automobiles & Components 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															6,800,000
Investment, Identifier [Axis]: CFC Underwriting Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		5,700,000
Investment, Identifier [Axis]: CFC Underwriting Ltd, Insurance
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 4.7	[1],[12],[27]													£ 4.7	[3],[11],[21]
Investment, Identifier [Axis]: CFC Underwriting Ltd, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		39,500,000														39,500,000
Investment, Identifier [Axis]: CSafe Global
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		34,900,000
Investment, Identifier [Axis]: CSafe Global, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		186,400,000	[1],[2],[8],[9],[10],[13],[14],[35]													186,800,000	[3],[4],[5],[6],[7],[15],[16],[36]
Investment, Identifier [Axis]: CSafe Global, Capital Goods 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		59,200,000														59,400,000
Investment, Identifier [Axis]: CSafe Global, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 27.1	[1],[2]													£ 27.2	[3],[6]
Investment, Identifier [Axis]: CSafe Global, Capital Goods 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		17,200,000														17,300,000
Investment, Identifier [Axis]: CSafe Global, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		11,800,000	[1],[2],[35]													11,800,000	[3],[6]
Investment, Identifier [Axis]: CSafe Global, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,900,000	[1],[12]													34,900,000	[3],[11]
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[2],[27],[33]							€ 0.8
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[27],[33],[35]	1,400,000
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	40,000,000.0
Investment, Identifier [Axis]: Caldic BV, Retailing 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[3],[6],[21],[34]																					€ 0.8
Investment, Identifier [Axis]: Caldic BV, Retailing 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[34]															1,400,000
Investment, Identifier [Axis]: Caldic BV, Retailing 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															40,000,000.0
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan A, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															125,000,000.0
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan A, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	125,000,000.0
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		36,100,000
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Diversified Financials 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															12,000,000.0
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Diversified Financials 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															36,100,000
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Financial Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	12,000,000.0
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Financial Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	36,100,000
Investment, Identifier [Axis]: Capital Automotive LP, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	$ 41,900,000
Weighted average annual yield on accruing debt investments	[2],[27],[41]	11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: Capital Automotive LP, Structured Mezzanine, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 42,400,000
Weighted average annual yield on accruing debt investments	[6],[21],[22]															11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: Careismatic Brands Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 15,000,000.0
Investment, Identifier [Axis]: Careismatic Brands Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	15,000,000.0
Investment, Identifier [Axis]: Careismatic Brands Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	15,000,000.0
Investment, Identifier [Axis]: Cimarron Energy Inc, Energy
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[17],[20]															$ 7,500,000
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group)
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		900,000
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	100,000
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[35]	19,200,000
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	900,000
Investment, Identifier [Axis]: Cision Ltd, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,800,000														3,800,000
Investment, Identifier [Axis]: Clarience Technologies LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		25,300,000
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		293,200,000	[1],[2],[8],[9],[13],[30],[35]													294,000,000.0	[3],[4],[6],[7],[15],[31],[36]
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,400,000	[1],[12]													25,400,000	[3],[11]
Investment, Identifier [Axis]: ClubCorp Club Operations Inc, Consumer Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		31,900,000														31,900,000
Investment, Identifier [Axis]: Community Brands Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,800,000
Investment, Identifier [Axis]: Community Brands Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,900,000
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		32,600,000	[1],[2]													32,700,000	[3],[6]
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,900,000	[1],[12]													3,900,000	[3],[11]
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,900,000	[1],[12]													1,900,000	[3],[11]
Investment, Identifier [Axis]: Connecticut Avenue Securities Trust 2022-R08, Structured Mezzanine, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																2,300,000
Investment, Identifier [Axis]: Connecticut Avenue Securities Trust 2022-R08, Structured Mezzanine, Real Estate Management & Development | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,300,000
Investment, Identifier [Axis]: Constellis Holdings LLC, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,000,000.0	[1],[2],[37]													15,000,000.0	[3],[6],[38]
Investment, Identifier [Axis]: Constellis Holdings LLC, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		13,500,000	[1],[2],[37]													13,500,000	[3],[6],[38]
Investment, Identifier [Axis]: Corsearch Intermediate Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		4,400,000
Investment, Identifier [Axis]: Corsearch Intermediate Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		30,100,000	[1],[2],[35]													30,100,000	[3],[6],[36]
Investment, Identifier [Axis]: Corsearch Intermediate Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,400,000	[1],[12]													4,400,000	[3],[11]
Investment, Identifier [Axis]: Covis Finco Sarl
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		20,000,000.0
Investment, Identifier [Axis]: Covis Finco Sarl, Pharmaceuticals, Biotechnology & Life Sciences
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[12],[27]	20,000,000.0
Investment, Identifier [Axis]: Creation Technologies Inc, Technology Hardware & Equipment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,300,000														2,300,000
Investment, Identifier [Axis]: Credit Opportunities Partners JV, LLC, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[29]															1,637,300,000
Investment, Identifier [Axis]: Credit Opportunities Partners JV, LLC, Financial Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27],[28]	1,637,300,000
Investment, Identifier [Axis]: Cubic Corp, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		44,800,000	[1],[2]													44,800,000	[3],[6]
Investment, Identifier [Axis]: Cubic Corp, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,000,000.0														9,100,000
Investment, Identifier [Axis]: Cubic Corp, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		10,000,000.0														10,000,000.0
Investment, Identifier [Axis]: DOC Generici Srl
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,300,000
Investment, Identifier [Axis]: DOC Generici Srl, Pharmaceuticals, Biotechnology & Life Sciences 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 23.1	[1],[2],[27]													€ 23.1	[3],[6],[21]
Investment, Identifier [Axis]: DOC Generici Srl, Pharmaceuticals, Biotechnology & Life Sciences 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								0.1	[1],[2],[27]													2.4	[3],[11],[21]
Investment, Identifier [Axis]: DOC Generici Srl, Pharmaceuticals, Biotechnology & Life Sciences 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[11],[21]							2.3
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[9],[13],[14],[35]	136,800,000
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[4],[6],[15],[16],[36]															135,400,000
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															1,700,000
Investment, Identifier [Axis]: EIF Van Hook Holdings LLC, Energy | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																7,200,000
Investment, Identifier [Axis]: EaglePicher Technologies LLC, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		400,000														400,000
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 21.0														£ 21.0
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,400,000	[1],[2],[33],[35]																			0.3	[3],[6],[21],[34]
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount								0.3	[1],[2],[27],[33]							1,400,000	[3],[6],[21],[34]
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		70,100,000	[2],[27]													67,900,000	[3],[6],[21]
Investment, Identifier [Axis]: Ellucian Inc, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		179,200,000	[1],[2]													179,200,000	[3],[6]
Investment, Identifier [Axis]: Emerald Expositions Holding Inc, Media & Entertainment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,400,000														1,400,000
Investment, Identifier [Axis]: Encora Digital Inc, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,300,000
Investment, Identifier [Axis]: Encora Digital Inc, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	19,600,000
Investment, Identifier [Axis]: Encora Digital Inc, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	65,100,000
Investment, Identifier [Axis]: Encora Digital Inc, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2]	23,800,000
Investment, Identifier [Axis]: Encora Digital Inc, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																16,300,000
Investment, Identifier [Axis]: Encora Digital Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															65,100,000
Investment, Identifier [Axis]: Encora Digital Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															19,600,000
Investment, Identifier [Axis]: Encora Digital Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															23,800,000
Investment, Identifier [Axis]: Envirotainer Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,700,000
Investment, Identifier [Axis]: Envirotainer Ltd, Transportation
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[11],[21]							2.7	[1]													2.7	[3]
Investment, Identifier [Axis]: Envirotainer Ltd, Transportation 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								14.9														14.9
Investment, Identifier [Axis]: Envirotainer Ltd, Transportation 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,600,000														7,600,000
Investment, Identifier [Axis]: Excelitas Technologies Corp 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,400,000
Investment, Identifier [Axis]: Excelitas Technologies Corp 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,100,000
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		900,000	[1],[2]													1,300,000	[3],[6]
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								4.1														4.1
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,700,000	[1],[2]													1,000,000.0	[3],[11]
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,500,000														24,500,000
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,400,000	[1],[12]													4,700,000	[3],[11]
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	3,100,000
Investment, Identifier [Axis]: Follett Software Co
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,900,000
Investment, Identifier [Axis]: Follett Software Co, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		37,400,000														37,500,000
Investment, Identifier [Axis]: Follett Software Co, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		73,500,000	[1],[9],[10],[13],[14]													73,700,000	[3],[4],[5],[15],[16]
Investment, Identifier [Axis]: Follett Software Co, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,900,000	[1],[12]													9,900,000	[3],[11]
Investment, Identifier [Axis]: Foundation Consumer Brands LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,600,000
Investment, Identifier [Axis]: Foundation Consumer Brands LLC, Pharmaceuticals, Biotechnology & Life Sciences 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		81,500,000	[1],[2],[13],[35]													83,900,000	[3],[6],[15],[36]
Investment, Identifier [Axis]: Foundation Consumer Brands LLC, Pharmaceuticals, Biotechnology & Life Sciences 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,600,000	[1],[12]													6,600,000	[3],[11]
Investment, Identifier [Axis]: Foundation Risk Partners Corp
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,900,000
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		79,700,000	[1],[2],[35]													2,900,000	[3],[6]
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,000,000.0	[1],[12]													79,900,000	[3],[6],[36]
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															4,100,000
Investment, Identifier [Axis]: GA Capital Specialty Lending Fund, Limited Partnership Interest, Financial Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,000,000.0
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,500,000														8,800,000
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,500,000	[1],[2]													7,500,000	[3],[6]
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		87,800,000	[1],[2]													88,000,000.0	[3],[6]
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,300,000	[1],[2]													21,500,000	[3],[6]
Investment, Identifier [Axis]: Galway Partners Holdings LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,400,000
Investment, Identifier [Axis]: Galway Partners Holdings LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,300,000
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		36,800,000														36,900,000
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,600,000	[1],[2]													111,100,000	[3],[4],[5],[6],[16],[36]
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		110,800,000	[1],[2],[9],[10],[14],[35]													12,000,000.0	[3],[11]
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,400,000	[1],[12]													1,300,000	[3],[11]
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	1,300,000
Investment, Identifier [Axis]: General Datatech LP, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		155,400,000	[1],[2],[9],[10],[13],[14],[35]													156,400,000	[3],[4],[5],[6],[15],[16],[36]
Investment, Identifier [Axis]: General Datatech LP, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,200,000														18,300,000
Investment, Identifier [Axis]: Gigamon Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,300,000
Investment, Identifier [Axis]: Gigamon Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		168,400,000	[1],[2]													170,400,000	[3],[6]
Investment, Identifier [Axis]: Gigamon Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,300,000	[1],[12]													9,300,000	[3],[11]
Investment, Identifier [Axis]: Global Jet Capital LLC, Preferred Stock, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		462,500,000	[1],[2],[23],[26],[42],[43]													453,100,000	[3],[6],[17],[20],[44],[45]
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,700,000	[1],[2],[27],[42],[43]													28,000,000.0	[3],[6],[21],[44],[45]
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		12,200,000	[1],[2],[27],[42],[43]													20,500,000	[3],[6],[21],[44],[45]
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,400,000	[1],[2],[27],[42],[43]													2,400,000	[3],[6],[21],[44],[45]
Investment, Identifier [Axis]: Gracent LLC, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,800,000	[1],[2]													25,900,000	[3],[6]
Investment, Identifier [Axis]: Gracent LLC, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		23,500,000	[1],[2],[23],[26]													22,900,000	[3],[6],[17],[20]
Investment, Identifier [Axis]: Greystone Equity Member Corp, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															194,800,000
Investment, Identifier [Axis]: Greystone Equity Member Corp, Diversified Financials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																30,200,000
Investment, Identifier [Axis]: Greystone Equity Member Corp, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	194,800,000
Investment, Identifier [Axis]: Greystone Equity Member Corp, Financial Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		30,200,000
Investment, Identifier [Axis]: HKA
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		200,000
Investment, Identifier [Axis]: HKA, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,400,000	[1],[2],[27],[35]													4,400,000	[3],[6],[21]
Investment, Identifier [Axis]: HKA, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		200,000	[1],[12],[27]													200,000	[3],[11],[21]
Investment, Identifier [Axis]: HM Dunn Co Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,000,000.0
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		35,300,000	[1],[2],[28]													35,600,000	[3],[6],[29]
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,000,000.0	[1],[12],[28]													2,000,000.0	[3],[11],[29]
Investment, Identifier [Axis]: HealthChannels LLC, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,400,000														15,400,000
Investment, Identifier [Axis]: Heniff Transportation Systems LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		14,300,000
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,500,000	[1],[2]													135,700,000	[3],[4],[5],[6],[7],[15],[36]
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		134,900,000	[1],[2],[8],[9],[10],[13],[35]													19,100,000	[3],[6]
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,000,000.0	[1],[2]													17,800,000	[3],[11]
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	14,300,000
Investment, Identifier [Axis]: Hermes UK Ltd, Transportation | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 14.7														£ 14.7
Investment, Identifier [Axis]: Hibu Inc, Commercial & Professional Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		98,300,000	[1],[2],[9],[10],[13],[14],[35]													99,000,000.0	[3],[4],[5],[6],[15],[16],[36]
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,700,000
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		37,500,000														37,600,000
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,600,000	[1],[2]													4,400,000	[3],[6]
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,000,000.0	[1],[2]													7,000,000.0	[3],[6]
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,700,000	[1],[12]													6,000,000.0	[3],[11]
Investment, Identifier [Axis]: Hilding Anders, Consumer Durables & Apparel 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								135.2	[2],[26],[27],[28]													135.2	[3],[6],[20],[21],[29]
Investment, Identifier [Axis]: Hilding Anders, Consumer Durables & Apparel 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								152.6	[2],[23],[26],[27],[28]													152.6	[3],[6],[17],[20],[21],[29]
Investment, Identifier [Axis]: Home Partners JV 2, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27],[37]	10,500,000
Investment, Identifier [Axis]: Home Partners JV 2, Structured Mezzanine, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[38]															10,200,000
Investment, Identifier [Axis]: Individual FoodService 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		4,700,000
Investment, Identifier [Axis]: Individual FoodService 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,100,000
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		103,800,000	[1],[2],[30]													69,400,000	[3],[31],[36]
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,800,000	[1],[12]													5,200,000	[3],[6]
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,100,000	[1],[12]													16,700,000	[3],[6],[36]
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															5,400,000
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															6,900,000
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 6
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															4,800,000
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 7
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															1,400,000
Investment, Identifier [Axis]: Industria Chimica Emiliana Srl, Pharmaceuticals, Biotechnology & Life Sciences
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								88.8	[1],[2],[27]													88.8	[3],[6],[21]
Investment, Identifier [Axis]: Industria Chimica Emiliana Srl, Pharmaceuticals, Biotechnology & Life Sciences | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 113.9														€ 113.9
Investment, Identifier [Axis]: Industry City TI Lessor LP, Consumer Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,500,000	[1],[2],[30]													$ 25,600,000	[3],[6],[31]
Weighted average annual yield on accruing debt investments	[6],[22],[31]															10.80%		10.80%		10.80%		10.80%		10.80%		10.80%		10.80%
Investment, Identifier [Axis]: Insight Global LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		21,100,000
Investment, Identifier [Axis]: Insight Global LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		26,800,000
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		63,500,000														$ 63,700,000
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		202,700,000	[1],[2],[8]													8,400,000	[3],[6]
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		21,100,000	[1],[12]													203,300,000	[3],[6],[7]
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		26,800,000	[1],[12]													12,600,000	[3],[11]
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															26,800,000
Investment, Identifier [Axis]: Integrity Marketing Group LLC, Insurance
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		124,100,000	[1],[2]													124,400,000	[3],[6]
Investment, Identifier [Axis]: J S Held LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,300,000
Investment, Identifier [Axis]: J S Held LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		17,400,000
Investment, Identifier [Axis]: J S Held LLC, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		124,900,000	[1],[2],[8],[13],[30]													103,000,000.0	[3],[6],[7],[15],[31],[36]
Investment, Identifier [Axis]: J S Held LLC, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		12,800,000	[1],[2]													8,900,000	[3],[6]
Investment, Identifier [Axis]: J S Held LLC, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		26,600,000	[1],[2],[13]													22,200,000	[3],[6]
Investment, Identifier [Axis]: J S Held LLC, Insurance 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,300,000	[1],[12]													24,800,000	[3],[6],[15]
Investment, Identifier [Axis]: J S Held LLC, Insurance 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		17,400,000	[1],[12]													5,200,000	[3],[11]
Investment, Identifier [Axis]: J S Held LLC, Insurance 6
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															19,200,000
Investment, Identifier [Axis]: JW Aluminum Co, Materials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		76,500,000	[1],[2],[28],[30],[33]													$ 76,500,000	[3],[6],[29],[31],[34]
Weighted average annual yield on accruing debt investments	[6],[22],[29],[31],[34]															10.30%		10.30%		10.30%		10.30%		10.30%		10.30%		10.30%
Investment, Identifier [Axis]: Jarrow Formulas Inc, Household & Personal Products
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		180,600,000	[1],[2],[8],[9],[10],[13],[14],[30],[35]													$ 181,800,000	[3],[4],[5],[6],[7],[15],[16],[31],[36]
Investment, Identifier [Axis]: Jet Edge International LLC, Term Loan
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		700,000
Investment, Identifier [Axis]: Jet Edge International LLC, Term Loan, Transportation 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 72,000,000.0	[1],[2]													$ 74,500,000	[3],[6]
Weighted average annual yield on accruing debt investments		10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[2],[41]	10.00%	[6]	10.00%	[6]	10.00%	[6]	10.00%	[6]	10.00%	[6]	10.00%	[6]	10.00%	[6]
Investment, Identifier [Axis]: Jet Edge International LLC, Term Loan, Transportation 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 700,000	[1],[12]													$ 700,000	[3],[11]
Weighted average annual yield on accruing debt investments		10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[12],[41]	10.00%	[11]	10.00%	[11]	10.00%	[11]	10.00%	[11]	10.00%	[11]	10.00%	[11]	10.00%	[11]
Investment, Identifier [Axis]: KBP Investments LLC, Consumer Staples Distribution & Retail 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 14,600,000
Investment, Identifier [Axis]: KBP Investments LLC, Consumer Staples Distribution & Retail 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,000,000.0
Investment, Identifier [Axis]: KBP Investments LLC, Food & Staples Retailing | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																$ 23,600,000
Investment, Identifier [Axis]: KKR Central Park Leasing Aggregator L.P., Partnership Interest, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 39,100,000	[1],[2],[23],[26],[27]													$ 39,100,000	[3],[6],[17],[20],[21]
Weighted average annual yield on accruing debt investments		14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[2],[23],[26],[27],[41]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]	14.30%	[6],[17],[20],[21]
Investment, Identifier [Axis]: Karman Space Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 800,000
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		87,700,000	[1],[2]													$ 51,100,000	[3],[6],[36]
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,700,000	[1],[2]													4,500,000	[3],[6]
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		800,000	[1],[12]													37,100,000	[3],[6]
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															1,000,000.0
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[8],[9],[10],[13],[14],[30],[35]	368,000,000.0
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		29,100,000														29,200,000
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[4],[5],[6],[7],[15],[16],[31],[36]															268,900,000
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															84,600,000
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															15,400,000
Investment, Identifier [Axis]: Kilter Finance, Preferred Stock, Insurance
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 99,400,000	[1],[2],[27],[28]													$ 99,400,000	[3],[6],[21],[29]
Weighted average annual yield on accruing debt investments		12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[2],[27],[28],[41]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]	12.00%	[6],[21],[29]
Investment, Identifier [Axis]: Kilter Finance, Preferred Stock, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 24,000,000.0														$ 24,000,000.0
Weighted average annual yield on accruing debt investments		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%		12.00%
Investment, Identifier [Axis]: Laboratoires Vivacy SAS
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 700,000
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[2],[27]							€ 7.8
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[12],[27]							0.6
Investment, Identifier [Axis]: Lakefield Veterinary Group
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		34,300,000
Investment, Identifier [Axis]: Lakefield Veterinary Group, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		27,000,000.0														$ 27,100,000
Investment, Identifier [Axis]: Lakefield Veterinary Group, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		108,900,000	[1],[2],[8],[13],[35]													108,300,000	[3],[6],[7],[15]
Investment, Identifier [Axis]: Lakefield Veterinary Group, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,300,000	[1],[12]													35,200,000	[3],[11]
Investment, Identifier [Axis]: Lakeview Farms Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		10,800,000
Investment, Identifier [Axis]: Lakeview Farms Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,800,000
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,500,000														15,500,000
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		76,000,000.0	[1],[2],[10],[35]													31,200,000	[3],[5],[36]
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,900,000	[1],[2]													4,500,000	[3],[6]
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		10,800,000	[1],[12]													45,000,000.0	[3],[6],[36]
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,800,000	[1],[12]													10,800,000	[3],[11]
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															2,300,000
Investment, Identifier [Axis]: Largest Portfolio Company Investment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		132,400,000														132,400,000
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,700,000														4,700,000
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								3.6														€ 3.6
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								5.0														5.0
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 4 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 1.1														£ 1.1
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 5 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,500,000														6,500,000
Investment, Identifier [Axis]: Lenovo Group Ltd, Structured Mezzanine, Technology Hardware & Equipment 6 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										0.8														0.8
Investment, Identifier [Axis]: Lexitas Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		7,600,000
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,400,000														18,500,000
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		800,000	[1],[2]													133,100,000	[3],[4],[5],[6],[7],[36]
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		132,800,000	[1],[2],[8],[9],[10],[35]													8,400,000	[3],[11]
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	7,600,000
Investment, Identifier [Axis]: Lionbridge Technologies Inc, Media & Entertainment
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		119,400,000	[1],[2],[9],[13],[14],[30]													122,700,000	[3],[4],[6],[15],[16],[31],[36]
Investment, Identifier [Axis]: Lionbridge Technologies Inc, Media & Entertainment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		26,100,000														26,800,000
Investment, Identifier [Axis]: Lipari Foods LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		26,000,000.0
Investment, Identifier [Axis]: Lipari Foods LLC, Consumer Staples Distribution & Retail 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[8],[13],[35]	97,300,000
Investment, Identifier [Axis]: Lipari Foods LLC, Consumer Staples Distribution & Retail 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	26,000,000.0
Investment, Identifier [Axis]: Lipari Foods LLC, Food & Staples Retailing 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[7],[15]															96,000,000.0
Investment, Identifier [Axis]: Lipari Foods LLC, Food & Staples Retailing 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															27,300,000
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		12,600,000
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 44.3														€ 44.3
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										5.7	[1],[2],[27]													5.7	[3],[6],[21]
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 9.3	[1],[12],[27]													£ 9.3	[3],[11],[21]
Investment, Identifier [Axis]: Luxembourg Life Fund - Absolute Return Fund I, 1L Term Loan, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		21,100,000														21,300,000
Investment, Identifier [Axis]: Luxembourg Life Fund - Absolute Return Fund II, Structured Mezzanine, Insurance
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															24,900,000
Investment, Identifier [Axis]: Luxembourg Life Fund - Absolute Return Fund II, Structured Mezzanine, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,800,000
Investment, Identifier [Axis]: Luxembourg Life Fund - Absolute Return Fund III, Term Loan, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		55,800,000														56,200,000
Investment, Identifier [Axis]: Luxembourg Life Fund - Long Term Growth Fund, Term Loan, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																67,400,000
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[4],[5],[6],[16],[36]															268,000,000.0
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		11,900,000														11,900,000
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	55,800,000
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[9],[10],[14],[35]	139,600,000
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	71,900,000
Investment, Identifier [Axis]: Magna Legal Services LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,200,000
Investment, Identifier [Axis]: Magna Legal Services LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		600,000
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		23,000,000.0	[1],[2],[35]													18,500,000	[3],[6]
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,200,000	[1],[12]													2,200,000	[3],[11]
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		600,000	[1],[12]													5,200,000	[3],[11]
Investment, Identifier [Axis]: Matchesfashion Ltd, Consumer Durables & Apparel
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		13,300,000	[1],[2],[23],[26],[27]													13,300,000	[3],[6],[17],[20],[21]
Investment, Identifier [Axis]: Med-Metrix 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		25,000,000.0
Investment, Identifier [Axis]: Med-Metrix 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		7,800,000
Investment, Identifier [Axis]: Med-Metrix, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		11,800,000														11,900,000
Investment, Identifier [Axis]: Med-Metrix, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		56,000,000.0	[1],[2],[8],[14],[35]													56,100,000	[3],[6],[7],[16]
Investment, Identifier [Axis]: Med-Metrix, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,000,000.0	[1],[12]													25,000,000.0	[3],[11]
Investment, Identifier [Axis]: Med-Metrix, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,800,000	[1],[12]													7,800,000	[3],[11]
Investment, Identifier [Axis]: Medallia Inc, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		210,700,000	[1],[2],[35]													207,800,000	[3],[6]
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[36]															164,400,000
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[35]	132,000,000.0
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[26]	5,000,000.0
Investment, Identifier [Axis]: Misys Ltd, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,300,000	[1],[2],[27],[33]													16,300,000	[3],[6],[21],[34]
Investment, Identifier [Axis]: Misys Ltd, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,300,000														2,300,000
Investment, Identifier [Axis]: Misys Ltd, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		46,600,000														46,600,000
Investment, Identifier [Axis]: Monitronics International Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		15,700,000
Investment, Identifier [Axis]: Monitronics International Inc, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		35,500,000														35,500,000
Investment, Identifier [Axis]: Monitronics International Inc, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,600,000	[1],[2],[13],[23],[26],[33]													18,600,000	[3],[6],[15],[34]
Investment, Identifier [Axis]: Monitronics International Inc, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		54,300,000	[1],[2]													46,100,000	[3],[6]
Investment, Identifier [Axis]: Monitronics International Inc, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,700,000	[1],[12]													23,900,000	[3],[11]
Investment, Identifier [Axis]: Motion Recruitment Partners LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		59,600,000
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,700,000														24,800,000
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		63,800,000	[1],[2],[8],[13]													64,000,000.0	[3],[6],[7],[15]
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		54,500,000	[1],[2],[14]													59,400,000	[3],[6],[16],[36]
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,700,000	[1],[2]													$ 59,600,000	[3],[11]
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	59,600,000
Investment, Identifier [Axis]: My Community Homes PropCo 2, Private Equity, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Weighted average annual yield on accruing debt investments																17.80%		17.80%		17.80%		17.80%		17.80%		17.80%		17.80%
Investment, Identifier [Axis]: NBG Home
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,000,000.0
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		26,100,000	[1],[2]													$ 75,900,000	[3],[6],[17],[20]
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		63,200,000	[1],[2],[23],[26]													35,800,000	[3],[6],[17],[20]
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	1,000,000.0
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[23],[26]	37,400,000
Investment, Identifier [Axis]: NCI Inc, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		29,200,000	[1],[2],[28]													28,100,000	[3],[6],[29]
Investment, Identifier [Axis]: NEP Broadcasting LLC, Media & Entertainment | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,800,000														6,800,000
Investment, Identifier [Axis]: NPD Group Inc/The, Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															100,000
Investment, Identifier [Axis]: NPD Group Inc/The, Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															19,200,000
Investment, Identifier [Axis]: NPD Group Inc/The, Consumer Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															900,000
Investment, Identifier [Axis]: Net Documents
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,700,000
Investment, Identifier [Axis]: Net Documents, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		33,000,000.0	[1],[2]													33,000,000.0	[3],[6]
Investment, Identifier [Axis]: Net Documents, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		300,000	[1],[2]													3,000,000.0	[3],[11]
Investment, Identifier [Axis]: Net Documents, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	2,700,000
Investment, Identifier [Axis]: New Era Technology Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,200,000
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																34,300,000
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,200,000	[1],[2],[8],[10],[14]													51,100,000	[3],[5],[7],[16],[36]
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,900,000
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,500,000	[1],[2]													2,600,000	[3],[6]
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,300,000
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,700,000	[1],[8],[14]													2,100,000	[3],[11]
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	1,200,000
Investment, Identifier [Axis]: NewStar Clarendon 2014-1A Class D, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 8,300,000
Weighted average annual yield on accruing debt investments	[6],[21]															19.30%		19.30%		19.30%		19.30%		19.30%		19.30%		19.30%
Investment, Identifier [Axis]: NewStar Clarendon 2014-1A Class D, Diversified Financials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																$ 30,000,000.0
Weighted average annual yield on accruing debt investments																2.80%		2.80%		2.80%		2.80%		2.80%		2.80%		2.80%
Investment, Identifier [Axis]: NewStar Clarendon 2014-1A Class D, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[27]	$ 8,300,000
Weighted average annual yield on accruing debt investments	[2],[27]	18.30%		18.30%		18.30%		18.30%		18.30%		18.30%		18.30%
Investment, Identifier [Axis]: NewStar Clarendon 2014-1A Class D, Financial Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 30,000,000.0
Weighted average annual yield on accruing debt investments		16.80%		16.80%		16.80%		16.80%		16.80%		16.80%		16.80%
Investment, Identifier [Axis]: Novotech Pty Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 5,600,000
Investment, Identifier [Axis]: Novotech Pty Ltd, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		5,700,000	[1],[12],[27]													$ 5,700,000	[3],[11],[21]
Investment, Identifier [Axis]: Novotech Pty Ltd, Health Care Equipment & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		24,400,000														24,400,000
Investment, Identifier [Axis]: Novotech Pty Ltd, Health Care Equipment & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 33.7														$ 33.7
Investment, Identifier [Axis]: OEConnection LLC, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		76,100,000	[1],[2],[13]													76,100,000	[3],[6],[15]
Investment, Identifier [Axis]: OEConnection LLC, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		50,000,000.0														50,000,000.0
Investment, Identifier [Axis]: Omnimax International Inc, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		174,000,000.0	[1],[2],[8],[9],[10],[13],[35]													183,600,000	[3],[4],[5],[6],[7],[15],[36]
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,900,000	[1],[2],[33]													4,900,000	[3],[6],[34]
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,900,000														4,900,000
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,600,000	[2]													25,600,000	[3],[6]
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		25,600,000														25,600,000
Investment, Identifier [Axis]: Ontic Engineering & Manufacturing Inc, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,100,000														2,100,000
Investment, Identifier [Axis]: Opendoor Labs Inc, Structured Mezzanine, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 71,100,000
Weighted average annual yield on accruing debt investments	[6],[21]															10.00%		10.00%		10.00%		10.00%		10.00%		10.00%		10.00%
Investment, Identifier [Axis]: Opendoor Labs Inc, Structured Mezzanine, Real Estate Management & Development
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[27]	$ 56,900,000
Weighted average annual yield on accruing debt investments	[2],[27]	10.00%		10.00%		10.00%		10.00%		10.00%		10.00%		10.00%
Investment, Identifier [Axis]: Oxford Global Resources LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 4,600,000
Investment, Identifier [Axis]: Oxford Global Resources LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		8,000,000.0
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		87,300,000	[1],[2],[9],[10],[13],[14],[35]													$ 94,500,000	[3],[4],[5],[6],[15],[16],[36]
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,100,000	[1],[2]													3,500,000	[3],[6]
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,300,000	[1],[2]													8,300,000	[3],[11]
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,600,000	[1],[12]													4,100,000	[3],[11]
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	8,000,000.0
Investment, Identifier [Axis]: PSKW LLC (dba ConnectiveRx), Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		291,000,000.0	[1],[2],[8],[10],[14],[30],[35]													291,800,000	[3],[5],[6],[7],[16],[31]
Investment, Identifier [Axis]: Pantherx Specialty LLC, Pharmaceuticals, Biotechnology & Life Sciences | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,900,000														15,900,000
Investment, Identifier [Axis]: Paradigm Acquisition Corp, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,500,000														2,500,000
Investment, Identifier [Axis]: Parts Town LLC, Consumer Discretionary Distribution & Retail
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[14],[35]	100,100,000
Investment, Identifier [Axis]: Parts Town LLC, Consumer Discretionary Distribution & Retail | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		49,300,000
Investment, Identifier [Axis]: Parts Town LLC, Retailing | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																49,400,000
Investment, Identifier [Axis]: Parts Town LLC, Retailing 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[16]															37,100,000
Investment, Identifier [Axis]: Parts Town LLC, Retailing 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6]															63,200,000
Investment, Identifier [Axis]: PartsSource Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,300,000
Investment, Identifier [Axis]: PartsSource Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		22,700,000
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,000,000.0	[1],[2]													65,100,000	[3],[6]
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		64,900,000	[1],[2]													4,300,000	[3],[11]
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,300,000	[1],[12]													22,900,000	[3],[11]
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	22,900,000
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		175,000,000.0	[1],[2],[30]													175,000,000.0	[3],[6],[31]
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		8,700,000														8,800,000
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		130,400,000	[1],[2]													130,400,000	[3],[6]
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		21,500,000														21,500,000
Investment, Identifier [Axis]: Performance Health Holdings Inc, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		108,300,000	[1],[2],[8],[13],[35]													108,300,000	[3],[6],[7],[15],[36]
Investment, Identifier [Axis]: Plaskolite, LLC, Materials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,100,000														1,100,000
Investment, Identifier [Axis]: Precision Global Corp, Materials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		8,900,000														8,900,000
Investment, Identifier [Axis]: Pretium Packaging LLC, Household & Personal Products 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,600,000														1,600,000
Investment, Identifier [Axis]: Pretium Packaging LLC, Household & Personal Products 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		39,900,000														39,900,000
Investment, Identifier [Axis]: Pretium Partners LLC P1, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs) | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 30,400,000
Weighted average annual yield on accruing debt investments		2.80%		2.80%		2.80%		2.80%		2.80%		2.80%		2.80%
Investment, Identifier [Axis]: Pretium Partners LLC P1, Structured Mezzanine, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																29,600,000
Investment, Identifier [Axis]: Pretium Partners LLC P2, Term Loan, Equity Real Estate Investment Trusts (REITs) | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 33,500,000
Weighted average annual yield on accruing debt investments		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: Pretium Partners LLC P2, Term Loan, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 33,500,000
Weighted average annual yield on accruing debt investments	[6],[21]															11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: Prime ST LLC, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[27],[28]	$ 55,500,000
Weighted average annual yield on accruing debt investments	[2],[27],[28]	5.00%		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%
Investment, Identifier [Axis]: Prime ST LLC, Structured Mezzanine, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21],[29]															$ 55,500,000
Weighted average annual yield on accruing debt investments	[6],[21],[29]															5.00%		5.00%		5.00%		5.00%		5.00%		5.00%		5.00%
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 62,400,000	[1],[2],[28]													$ 62,700,000	[3],[6],[29]
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		153,100,000	[1],[2],[28]													149,600,000	[3],[6],[29]
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		100,000	[1],[2],[28]													100,000	[3],[6],[29]
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		34,300,000	[1],[2],[28]													34,400,000	[3],[6],[29]
Investment, Identifier [Axis]: Project Marron, Consumer Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 81.8														$ 81.8
Investment, Identifier [Axis]: Project Marron, Consumer Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount														$ 52.5														$ 52.5
Investment, Identifier [Axis]: Pure Fishing Inc, Consumer Durables & Apparel 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		33,600,000	[1],[2],[33]													33,700,000	[3],[6],[34]
Investment, Identifier [Axis]: Pure Fishing Inc, Consumer Durables & Apparel 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,800,000														9,800,000
Investment, Identifier [Axis]: Pure Fishing Inc, Consumer Durables & Apparel 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		100,000,000.0	[1],[2]													100,000,000.0	[3],[6],[36]
Investment, Identifier [Axis]: Pure Fishing Inc, Consumer Durables & Apparel 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		26,500,000														26,500,000
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,000,000.0
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,800,000														18,800,000
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		239,400,000	[1],[2],[8],[9],[10],[30]													240,000,000.0	[3],[4],[5],[6],[7],[31],[36]
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,800,000	[1],[2]													7,700,000	[3],[11]
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	3,000,000.0
Investment, Identifier [Axis]: Radwell International LLC/PA
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,000,000.0
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		900,000	[1],[2]													1,000,000.0	[3],[6]
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,000,000.0	[1],[35]													92,100,000	[3],[4],[5],[7],[16]
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		91,900,000	[1],[8],[9],[10],[14]													6,900,000	[3],[11]
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	6,000,000.0
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		105,100,000	[1],[2],[8],[10],[13],[30]													106,100,000	[3],[5],[6],[7],[15],[31],[36]
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		33,300,000														33,600,000
Investment, Identifier [Axis]: Revere Superior Holdings Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,200,000
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,500,000														19,600,000
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		33,400,000	[1],[2],[35]													33,500,000	[3],[6],[36]
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,200,000	[1],[12]													1,500,000	[3],[6]
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															1,700,000
Investment, Identifier [Axis]: Rise Baking Company
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		4,600,000
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		700,000	[1],[2]													1,400,000	[3],[6]
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		200,000														500,000
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		28,500,000	[1],[2],[10],[35]													28,500,000	[3],[5],[36]
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		30,300,000														30,400,000
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,600,000	[1],[12]													3,900,000	[3],[11]
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,700,000														1,400,000
Investment, Identifier [Axis]: SAMBA Safety Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,800,000
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		27,000,000.0														27,100,000
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,000,000.0	[1],[35]													6,100,000	[3],[36]
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		600,000	[1],[2]													2,400,000	[3],[11]
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	1,800,000
Investment, Identifier [Axis]: SG Residential Mortgage Trust 2022-2, Structured Mezzanine, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																$ 4,600,000
Weighted average annual yield on accruing debt investments																5.40%		5.40%		5.40%		5.40%		5.40%		5.40%		5.40%
Investment, Identifier [Axis]: SG Residential Mortgage Trust 2022-2, Structured Mezzanine, Real Estate Management & Development | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 4,600,000
Weighted average annual yield on accruing debt investments		5.40%		5.40%		5.40%		5.40%		5.40%		5.40%		5.40%
Investment, Identifier [Axis]: SI Group Inc, Materials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 1,500,000														$ 1,500,000
Investment, Identifier [Axis]: SIRVA Worldwide Inc, Commercial & Professional Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,800,000														6,900,000
Investment, Identifier [Axis]: SIRVA Worldwide Inc, Commercial & Professional Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		10,300,000														10,300,000
Investment, Identifier [Axis]: Safe-Guard Products International LLC, Diversified Financials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[15]															100,000
Investment, Identifier [Axis]: Safe-Guard Products International LLC, Diversified Financials | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																71,700,000
Investment, Identifier [Axis]: Safe-Guard Products International LLC, Financial Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[13]	100,000
Investment, Identifier [Axis]: Safe-Guard Products International LLC, Financial Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		71,700,000
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Structured Mezzanine, Real Estate 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 5,700,000
Weighted average annual yield on accruing debt investments	[6],[21]															8.00%		8.00%		8.00%		8.00%		8.00%		8.00%		8.00%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Structured Mezzanine, Real Estate 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 3,400,000
Weighted average annual yield on accruing debt investments	[6],[21]															18.00%		18.00%		18.00%		18.00%		18.00%		18.00%		18.00%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Structured Mezzanine, Real Estate Management & Development
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[27]	$ 3,400,000
Weighted average annual yield on accruing debt investments	[2],[27]	18.00%		18.00%		18.00%		18.00%		18.00%		18.00%		18.00%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Structured Mezzanine, Real Estate Management & Development | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 5,700,000
Weighted average annual yield on accruing debt investments		8.00%		8.00%		8.00%		8.00%		8.00%		8.00%		8.00%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Term Loan, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															$ 10,500,000
Weighted average annual yield on accruing debt investments	[6],[21]															7.30%		7.30%		7.30%		7.30%		7.30%		7.30%		7.30%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Term Loan, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																$ 24,000,000.0
Weighted average annual yield on accruing debt investments																7.30%		7.30%		7.30%		7.30%		7.30%		7.30%		7.30%
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Term Loan, Real Estate Management & Development | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 34,500,000
Weighted average annual yield on accruing debt investments		7.30%		7.30%		7.30%		7.30%		7.30%		7.30%		7.30%
Investment, Identifier [Axis]: SavATree LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 3,400,000
Investment, Identifier [Axis]: SavATree LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,300,000
Investment, Identifier [Axis]: SavATree LLC, Consumer Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		39,500,000														$ 39,600,000
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,100,000	[1],[2]													5,500,000	[3],[6]
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,400,000	[1],[12]													4,000,000.0	[3],[11]
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,300,000	[1],[12]													6,300,000	[3],[11]
Investment, Identifier [Axis]: Senior Secured Loans—Second Lien
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments
Investment, Identifier [Axis]: Sequel Youth & Family Services LLC, Health Care Equipment & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 57,200,000	[1],[2],[23],[26]													$ 57,200,000	[3],[6],[17],[20]
Weighted average annual yield on accruing debt investments		3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[2],[23],[26],[41]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]	3.00%	[6],[17],[20],[22]
Investment, Identifier [Axis]: SitusAMC Holdings Corp, Real Estate
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[4],[5],[16]															$ 55,200,000
Investment, Identifier [Axis]: SitusAMC Holdings Corp, Real Estate | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																39,500,000
Investment, Identifier [Axis]: SitusAMC Holdings Corp, Real Estate Management & Development
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[9],[10],[14]	$ 55,000,000.0
Investment, Identifier [Axis]: SitusAMC Holdings Corp, Real Estate Management & Development | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		39,400,000
Investment, Identifier [Axis]: Solera LLC, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		312,400,000	[1],[2],[37]													312,400,000	[3],[6],[34]
Investment, Identifier [Axis]: Solina France SASU, Food, Beverage & Tobacco
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,500,000	[1],[2],[27],[35]													40,000,000.0	[3],[6],[21],[36]
Investment, Identifier [Axis]: Solina France SASU, Food, Beverage & Tobacco | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		20,500,000
Investment, Identifier [Axis]: Sorenson Communications LLC, 0.13
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[20],[44],[45]															9,900,000
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,300,000														20,000,000.0
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		32,500,000	[1],[9],[13],[14],[33]													33,600,000	[3],[4],[15],[16],[34]
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,900,000	[2],[26],[42],[43]													40,300,000	[3],[6],[20],[44],[45]
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[2],[26],[42],[43]	40,300,000
Investment, Identifier [Axis]: Source Code LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		15,000,000.0
Investment, Identifier [Axis]: Source Code LLC, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		52,600,000	[1],[9],[10],[14]													52,800,000	[3],[4],[5],[16]
Investment, Identifier [Axis]: Source Code LLC, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,300,000	[1],[12]													15,300,000	[3],[11]
Investment, Identifier [Axis]: Spins LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		7,900,000
Investment, Identifier [Axis]: Spins LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		16,500,000
Investment, Identifier [Axis]: Spins LLC, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		68,000,000.0	[1],[2],[14],[30],[35]													68,200,000	[3],[6],[16],[31],[36]
Investment, Identifier [Axis]: Spins LLC, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,900,000	[1],[12]													16,500,000	[3],[11]
Investment, Identifier [Axis]: Spins LLC, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,500,000	[1],[12]													7,900,000	[3],[11]
Investment, Identifier [Axis]: Spotless Brands LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		18,400,000
Investment, Identifier [Axis]: Spotless Brands LLC, Consumer Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2]	12,400,000
Investment, Identifier [Axis]: Spotless Brands LLC, Consumer Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12]	18,700,000
Investment, Identifier [Axis]: Staples Canada, Consumer Discretionary Distribution & Retail
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]													$ 29.2
Investment, Identifier [Axis]: Staples Canada, Consumer Discretionary Distribution & Retail | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount														$ 71.0
Investment, Identifier [Axis]: Staples Canada, Retailing
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]																											$ 30.5
Investment, Identifier [Axis]: Staples Canada, Retailing | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																												$ 74.2
Investment, Identifier [Axis]: Subordinated Debt
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments
Investment, Identifier [Axis]: Summit Interconnect Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		9,400,000
Investment, Identifier [Axis]: Summit Interconnect Inc, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		19,500,000														19,500,000
Investment, Identifier [Axis]: Summit Interconnect Inc, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		136,200,000	[1],[2],[9],[10],[13],[14],[35]													136,500,000	[3],[4],[5],[6],[15],[16],[36]
Investment, Identifier [Axis]: Summit Interconnect Inc, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,400,000	[1],[12]													9,400,000	[3],[11]
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,000,000.0	[1],[2],[23],[26]													2,000,000.0	[3],[6],[38]
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,100,000	[1],[2],[23],[26]													6,100,000	[3],[6],[17],[20],[38]
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11],[38]															1,200,000
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc, Software & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[17],[20],[38]															15,100,000
Investment, Identifier [Axis]: Sweeping Corp of America Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,600,000
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		72,000,000.0	[1],[2],[35]													72,200,000	[3],[6],[36]
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,100,000	[1],[2]													1,000,000.0	[3],[6]
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,600,000	[1],[12]													4,700,000	[3],[11]
Investment, Identifier [Axis]: TIBCO Software Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		39,900,000	[1],[2],[33]													39,900,000	[3],[6],[34]
Investment, Identifier [Axis]: TIBCO Software Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,000,000.0	[2],[33]													$ 1,000,000.0	[3],[6],[34]
Weighted average annual yield on accruing debt investments	[6],[22],[34]															6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%
Investment, Identifier [Axis]: Tangoe LLC, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		179,500,000	[1],[2],[30],[35],[46]													$ 179,500,000	[3],[6],[31],[36]
Investment, Identifier [Axis]: Tangoe LLC, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,700,000	[1],[2],[30],[35]													3,300,000	[3],[6],[31],[36]
Investment, Identifier [Axis]: TeamSystem SpA, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 19.8	[1],[2],[27]													€ 19.8	[3],[6],[21]
Investment, Identifier [Axis]: Tekfor HoldCo (formerly Amtek Global Technology Pte Ltd), Automobiles & Components
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								37.3	[1],[2],[26],[27],[28]													36.7	[3],[6],[20],[21],[29]
Investment, Identifier [Axis]: ThermaSys Corp, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		10,000,000.0	[1],[2],[23],[26],[37]													9,700,000	[3],[6],[17],[20],[38]
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[13]	46,100,000
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[13]	45,900,000
Investment, Identifier [Axis]: ThreeSixty Group, Retailing 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[15],[36]															46,100,000
Investment, Identifier [Axis]: ThreeSixty Group, Retailing 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[36]															45,900,000
Investment, Identifier [Axis]: Time Manufacturing Co
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		16,700,000
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								29.2														29.2
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		45,200,000	[1],[2]													45,400,000	[3],[6]
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		5,400,000	[1],[2]													7,300,000	[3],[6]
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								13.7	[1],[2]													€ 13.7	[3],[6]
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		16,700,000	[1],[12]													14,800,000	[3],[11]
Investment, Identifier [Axis]: Total Safety US Inc, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		11,000,000.0														11,200,000
Investment, Identifier [Axis]: Transaction Services Group Ltd, Software & Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 124.1														$ 124.1
Investment, Identifier [Axis]: Transaction Services Group Ltd, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 48.3	[1],[2],[27]													$ 48.3	[3],[6],[21]
Investment, Identifier [Axis]: Transaction Services Group Ltd, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		126,200,000	[1],[2],[13],[27]													126,200,000	[3],[6],[15],[21]
Investment, Identifier [Axis]: TruckPro LLC, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		9,200,000	[2],[33]													$ 9,200,000	[3],[6],[34]
Weighted average annual yield on accruing debt investments	[6],[22],[34]															11.00%		11.00%		11.00%		11.00%		11.00%		11.00%		11.00%
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		1,800,000	[1],[27],[33],[35]													$ 1,800,000	[3],[6],[21],[34]
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								1.4	[1],[2],[27],[33]													€ 1.4	[3],[6],[21],[34]
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		62,900,000	[2],[27]													62,900,000	[3],[6],[21]
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Capital Goods 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		61,800,000	[2],[27]													58,200,000	[3],[6],[21]
Investment, Identifier [Axis]: Unfunded commitments | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,600,000														3,300,000
Investment, Identifier [Axis]: Unifrax I LLC / Unifrax Holding Co, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		2,800,000														2,800,000
Investment, Identifier [Axis]: Valeo Foods Group Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,100,000
Investment, Identifier [Axis]: Valeo Foods Group Ltd, Food, Beverage & Tobacco | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 9.3														£ 9.3
Investment, Identifier [Axis]: Valeo Foods Group Ltd, Food, Beverage & Tobacco 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								3.8	[1],[2],[27]													3.8	[3],[6],[21]
Investment, Identifier [Axis]: Valeo Foods Group Ltd, Food, Beverage & Tobacco 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								2.3	[1],[12],[27]													2.3	[3],[11],[21]
Investment, Identifier [Axis]: Vantage Specialty Chemicals Inc, Materials
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[34]															800,000
Investment, Identifier [Axis]: Varsity Brands Inc, Consumer Durables & Apparel | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,000,000.0														4,000,000.0
Investment, Identifier [Axis]: Version1 Software Ltd
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		1,100,000
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[3],[11],[21]																					2.4
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £	[1],[2],[27]									1.1
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								2.5														2.5
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €	[1],[12],[27]							1.1
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | £										£ 4.0														£ 4.0
Investment, Identifier [Axis]: VetCor Professional Practices LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,800,000
Investment, Identifier [Axis]: VetCor Professional Practices LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,600,000
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		88,800,000	[1],[2],[35]													82,300,000	[3],[6]
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		700,000	[1],[2]													1,800,000	[3],[6]
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,800,000	[1],[12]													11,000,000.0	[3],[11]
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,700,000	[1],[12]													4,900,000	[3],[11]
Investment, Identifier [Axis]: Warren Resources Inc, Energy
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		18,700,000	[1],[2],[28]													18,600,000	[3]
Investment, Identifier [Axis]: Wealth Enhancement Group LLC 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,400,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		2,100,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Diversified Financials 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[6],[21]															31,100,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Diversified Financials 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11],[21]															3,300,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Diversified Financials 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11],[21]															2,100,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		28,100,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[2],[27]	3,800,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12],[27]	2,400,000
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[1],[12],[27]	2,100,000
Investment, Identifier [Axis]: West Corp, Commercial & Professional Services | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		4,800,000
Investment, Identifier [Axis]: West Corp, Software & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																12,100,000
Investment, Identifier [Axis]: West Corp, Software & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																2,500,000
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								113.4	[1],[2],[23],[26],[27]													113.4	[3],[6],[21]
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount | €								€ 121.1														€ 121.1
Investment, Identifier [Axis]: Woolpert Inc
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		3,700,000
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		52,900,000														53,000,000.0
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		90,800,000	[1],[2],[9],[10],[13],[14],[35]													91,000,000.0	[3],[4],[5],[15],[16],[36]
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		68,300,000	[1],[2]													68,500,000	[3],[6]
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		3,700,000	[1],[12]													3,700,000	[3],[11]
Investment, Identifier [Axis]: Worldwise Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		15,500,000
Investment, Identifier [Axis]: Worldwise Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,800,000
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		64,500,000														64,700,000
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		46,000,000.0	[1],[2]													26,300,000	[3],[6]
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,400,000	[1],[2]													20,000,000.0	[3],[6]
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		15,500,000	[1],[12]													7,400,000	[3],[6]
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 4
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,800,000	[1],[12]													15,500,000	[3],[11]
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 5
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount	[3],[11]															6,800,000
Investment, Identifier [Axis]: Yak Access LLC, Capital Goods | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		500,000
Investment, Identifier [Axis]: Yak Access LLC, Capital Goods 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																200,000
Investment, Identifier [Axis]: Yak Access LLC, Capital Goods 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount																800,000
Investment, Identifier [Axis]: Zendesk Inc 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		6,000,000.0
Investment, Identifier [Axis]: Zendesk Inc 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		14,400,000
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 1
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		58,100,000	[1],[2],[35]													58,100,000	[3],[6]
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 2
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		6,000,000.0	[1],[12]													14,500,000	[3],[11]
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 3
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		14,500,000	[1],[12]													6,000,000.0	[3],[11]
Investment, Identifier [Axis]: athenahealth Inc, Health Care Equipment & Services 1 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		7,100,000														7,100,000
Investment, Identifier [Axis]: athenahealth Inc, Health Care Equipment & Services 2 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		900,000														900,000
Investment, Identifier [Axis]: athenahealth Inc, Health Care Equipment & Services 3 | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount		$ 5,500,000														$ 5,500,000
Weighted average annual yield on accruing debt investments		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%		6.50%
Investment, Identifier [Axis]: iNova Pharmaceuticals (Australia) Pty Limited
Investment Company, Nonconsolidated Subsidiary [Line Items]
Unfunded commitments		$ 2,200,000
Investment, Identifier [Axis]: iNova Pharmaceuticals (Australia) Pty Limited, Pharmaceuticals, Biotechnology & Life Sciences
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 3.5	[1],[12],[27]													$ 3.5	[3],[11],[21]
Investment, Identifier [Axis]: iNova Pharmaceuticals (Australia) Pty Limited, Pharmaceuticals, Biotechnology & Life Sciences | Credit Opportunities Partners JV, LLC
Investment Company, Nonconsolidated Subsidiary [Line Items]
Principal amount												$ 34.2														$ 34.2

[1] Denominated in U.S dollars unless otherwise noted.

[2] Security or portion thereof is pledged as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).

[3] Denominated in U.S. dollars unless otherwise noted.

[4] Security or portion thereof held within Darby Creek LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9).

[5] Security or portion thereof held within Dunlap Funding LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9).

[6] Security or portion thereof is pledged as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).

[7] Security or portion thereof was held within CCT Tokyo Funding LLC and was pledged as collateral supporting the amounts outstanding under the revolving credit facility with Sumitomo Mitsui Banking Corporation (see Note 9).

[8] Security or portion thereof held within CCT Tokyo Funding LLC and pledged as collateral supporting the amounts outstanding under the revolving credit facility with Sumitomo Mitsui Banking Corporation (see Note 9).

[9] Security or portion thereof held within Darby Creek LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9).

[10] Security or portion thereof held within Dunlap Funding LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9)

[11] Security is an unfunded commitment. Reflects the stated spread at the time of commitment, but may not be the actual rate received upon funding.

[12] Security is an unfunded commitment. Reflects the stated spread at the time of commitment, but may not be the actual rate received upon funding

[13] Security or portion thereof held within Ambler Funding LLC and is pledged as collateral supporting the amounts outstanding under the revolving credit facility with Ally Bank (see Note 9).

[14] Security or portion thereof held within Meadowbrook Run LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Morgan Stanley Senior Funding, Inc. (see Note 9).

[15] Security or portion thereof held within Ambler Funding LLC and is pledged as collateral supporting the amounts outstanding under the revolving credit facility with Ally Bank (see Note 9).

[16] Security or portion thereof held within Meadowbrook Run LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Morgan Stanley Senior Funding, Inc. (see Note 9).

[17] Asset is on non-accrual status.

[18] Security held within IC Arches Investments LLC, a wholly-owned subsidiary of the Company.

[19] Security held within IC II Arches Investments, LLC, a wholly-owned subsidiary of the Company.

[20] Security is non-income producing.

[21] The investment is not a qualifying asset under the Investment Company Act of 1940, as amended. A business development company may not acquire any asset other than qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company’s total assets. As of December 31, 2022, 75.3% of the Company’s total assets represented qualifying assets.

[22] Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2022, the three-month London Interbank Offered Rate, or LIBOR or “L”, was 4.77%, the Euro Interbank Offered Rate, or EURIBOR, was 2.13%, Canadian Dollar Offer Rate, or CDOR was 4.94%, the Bank Bill Swap Bid Rate, or BBSY was 3.32%, the Reykjavik Interbank Offered Rate, or REIBOR, was 6.55%, the Stockholm Interbank Offered Rate, or STIBOR, was 2.70%, the Sterling Overnight Index Average, or SONIA, was 3.43%, the Secured Overnight Financing Rate, or SOFR, was 4.59%, and the U.S. Prime Lending Rate, or Prime, was 7.50%. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment.

[23] Asset is on non-accrual status.

[24] Security held within IC Arches Investments, LLC, a wholly-owned subsidiary of the Company.

[25] Security held within IC II Arches Investments, LLC, a wholly-owned subsidiary of the Company.

[26] Security is non-income producing.

[27] The investment, or portion of the investment is not a qualifying asset under the Investment Company Act of 1940, as amended. A business development company may not acquire any asset other than qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company’s total assets. As of March 31, 2023, 76.1% of the Company’s total assets represented qualifying assets.

[28] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of March 31, 2023, the Company held investments in portfolio companies of which it is deemed to be an "affiliated person" and deemed to "control". During the three months ended March 31, 2023, the Company disposed of investments in portfolio companies of which it was deemed to be an "affiliated person" and deemed to "control". The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person and deemed to control as of March 31, 2023: Portfolio Company Fair Value at December 31, 2022 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation) Fair Value at March 31, 2023 Interest Income(3) PIK Income(3) Fee Income(3) Dividend and Other Income(3) Senior Secured Loans—First LienTekfor HoldCo (formerly Amtek Global Technology Pte Ltd)$3.9 $— $— $— $0.1 $4.0 $— $— $— $— ATX Networks Corp 40.6 15.8 (0.8)— — 55.6 1.4 — — — HM Dunn Co Inc35.6 — (0.3)— — 35.3 1.0 — — — HM Dunn Co Inc— — — — — — — — — — NCI Inc28.1 0.8 — — 0.3 29.2 (0.3)0.9 — — Production Resource Group LLC 152.5 4.6 (0.3)— (0.6)156.2 4.8 2.1 — — Production Resource Group LLC 0.1 — — — — 0.1 — — — — Production Resource Group LLC 68.1 0.9 (0.7)— (0.5)67.8 1.9 0.5 — — Production Resource Group LLC31.3 0.3 (0.4)— (0.1)31.1 0.8 0.2 — — Warren Resources Inc18.6 0.2 — — (0.1)18.7 0.8 — — — Other Senior Secured Debt JW Aluminum Co 78.1 0.1 — — (1.2)77.0 2.0 — — — Subordinated DebtATX Networks Corp21.9 9.3 — — 0.1 31.3 0.3 0.6 — — Hilding Anders— — — — — — — — — — Hilding Anders— — — — — — 0.5 — — — Hilding Anders— — — — — — 0.1 — — — Asset Based Finance 801 5th Ave, Seattle, Structure Mezzanine 58.9 0.1 — — (0.1)58.9 1.2 0.4 — —  801 5th Ave, Seattle, Private Equity 6.3 — — — (1.1)5.2 — — — —  Avenue One PropCo, Private Equity 31.0 4.1 — — (0.6)34.5 — — — —  Avida Holding AB, Common Stock 42.6 — — — (7.1)35.5 — — — —  Kilter Finance, Preferred Stock 99.5 — — — (0.1)99.4 3.7 — — —  Kilter Finance, Private Equity 0.5 — — — — 0.5 — — — — KKR Altitude II Offshore Aggregator LP, Partnership Interest44.4 4.6 — — 0.8 49.8 — — — —  KKR Rocket Loans Aggregator LLC, Partnership Interest 4.3 9.9 — — (0.3)13.9 — — — 0.3  My Community Homes PropCo 2, Private Equity 79.0 — (2.5)— 4.0 80.5 — — — —  Prime St LLC, Private Equity — — (0.1)— 0.1 — — — — —  Prime St LLC, Structured Mezzanine 43.5 — — — (3.9)39.6 0.8 0.8 — — Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity 261.2 0.1 — — (6.5)254.8 — — — 5.1 Credit Opportunities Partners JV, LLC Portfolio Company Fair Value at December 31, 2022 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation) Fair Value at March 31, 2023 Interest Income(3) PIK Income(3) Fee Income(3) Dividend and Other Income(3) Credit Opportunities Partners JV, LLC$1,428.3 $— $— $— $(31.7)$1,396.6 $— $— $— $57.5 Equity/OtherAmtek Global Technology Pte Ltd, Common Stock — — — — — — — — — — Amtek Global Technology Pte Ltd, Ordinary Shares — — — — — — — — — — Amtek Global Technology Pte Ltd, Private Equity — — — — — — — — — — ATX Networks Corp, Common Stock 29.2 8.2 — — 1.1 38.5 — — — — ATX Networks Corp, Class B-1 Common Stock5.0 — — — — 5.0 — — — — ATX Networks Corp, Class B-2 Common Stock9.0 — — — — 9.0 — — — — Hilding Anders, Class A Common Stock — — — — — — — — — — Hilding Anders, Class B Common Stock — — — — — — — — — — Hilding Anders, Class C Common Stock — — — — — — — — — — Hilding Anders, Equity Options — — — — — — — — — — HM Dunn Co Inc, Preferred Stock, Series A 16.9 — — — (0.3)16.6 — — — — HM Dunn Co Inc, Preferred Stock, Series B — — — — — — — — — — JW Aluminum Co, Common Stock 2.4 — — — — 2.4 — — — — JW Aluminum Co, Preferred Stock 112.5 4.5 — — 30.9 147.9 0.1 4.5 — — NCI Inc, Class A-1 Common Stock— — — — — — — — — — NCI Inc, Class B-1 Common Stock— — — — — — — — — — NCI Inc, Class C Common Stock20.2 — — — (1.1)19.1 — — — — NCI Inc, Class I-1 Common Stock— — — — — — — — — — PRG III LLC, Preferred Stock, Series A PIK105.7 — — — 33.8 139.5 — — — — PRG III LLC, Preferred Stock, Series B PIK— — — — — — — — — — Warren Resources Inc, Common Stock 29.2 — — — (5.7)23.5 — — — — Total$2,908.4 $63.5 $(5.1)$— $10.2 $2,977.0 $19.1 $10.0 $— $62.9  ______________ (1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category. (2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category. (3)Interest, PIK, fee and dividend income presented for the full three months ended March 31, 2023. (4)The Company held this investment as of March 31, 2023 but it was not deemed to be an “control” of the portfolio company as of March 31, 2023.

[29] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of December 31, 2022, the Company held investments in one portfolio company of which it is deemed to be an “affiliated person” and deemed to “control”. During the year ended December 31, 2022, the Company disposed of investments in one portfolio of which it was deemed to be an "affiliated person" and deemed to "control". The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person and deemed to control for the year ended December 31, 2022: Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Senior Secured Loans—First LienAmtek Global Technology Pte Ltd$34.8 $— $(24.3)$(4.3)$(2.3)$3.9 $— $— $— $— ATX Networks Corp46.8 0.4 (6.6)— — 40.6 3.2 1.0 — — HM Dunn Co Inc33.6 2.0 — — — 35.6 0.8 2.1 — — HM Dunn Co Inc2.0 — (2.0)— — — — — — — NCI Inc— 79.1 (21.9)(28.5)(0.6)28.1 6.5 0.4 — —  One Call Care Management Inc(5) 5.0 — (4.7)— (0.3)— — — — — Production Resource Group LLC133.3 19.3 (0.3)— 0.2 152.5 12.9 8.0 — — Production Resource Group LLC0.1 — — — — 0.1 — — — — Production Resource Group LLC64.4 3.7 (0.6)— 0.6 68.1 6.4 2.0 — —  Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Production Resource Group LLC20.2 11.1 (0.3)— 0.3 31.3 — 0.9 — — Warren Resources Inc18.7 0.6 (0.2)— (0.5)18.6 2.5 0.2 — — Senior Secured Loans—Second LienAmtek Global Technology Pte Ltd— — — (39.1)39.1 — — — — — Other Senior Secured DebtJW Aluminum Co81.0 0.2 — — (3.1)78.1 8.0 — — —  One Call Care Management Inc(5) 23.5 — (21.6)— (1.9)— — — — — Subordinated DebtATX Networks Corp7.1 3.6 — — 11.2 21.9 1.6 1.5 — — Hilding Anders46.6 — — — (46.6)— — — — — Hilding Anders— — — — — — 0.3 — — — Hilding Anders— — — — — — 0.1 — — — Asset Based Finance801 5th Ave, Seattle, Structure Mezzanine57.2 1.9 — — (0.2)58.9 4.7 1.7 — — 801 5th Ave, Seattle, Private Equity23.1 — (0.1)— (16.7)6.3 — — — — Avenue One PropCo, Private Equity— 46.3 (16.2)— 0.9 31.0 — — — — Avida Holding AB, Common Stock52.3 — — — (9.7)42.6 — — — — Kilter Finance, Preferred Stock36.1 87.3 (24.0)0.7 (0.6)99.5 7.4 1.9 — — Kilter Finance, Private Equity0.5 — — — — 0.5 — — — — KKR Altitude II Offshore Aggregator LP, Partnership Interest— 44.4 — — 44.4 — — — — KKR Rocket Loans Aggregator LLC, Partnership Interest1.4 2.9 — — — 4.3 — — — 1.3 My Community Homes SFR PropCo 2, Private Equity33.0 157.0 (105.7)— (5.3)79.0 — — — — Prime St LLC, Private Equity9.1 — (0.3)— (8.8)— — — — — Prime St LLC, Structured Mezzanine52.4 3.3 — — (12.2)43.5 3.2 3.1 — — Toorak Capital Funding LLC, Membership Interest1.7 — (1.7)(0.2)0.2 — — — — 0.3 Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity199.3 78.3 — — (16.4)261.2 — — — 18.8 Roemanu LLC (FKA Toorak Capital Partners LLC), Structured Mezzanine22.0 32.0 (54.0)— — — — 0.6 — — Credit Opportunities Partners JV, LLCCredit Opportunities Partners JV, LLC1,396.2 175.0 — — (142.9)1,428.3 — — — 208.3 Equity/OtherAmtek Global Technology Pte Ltd, Common Stock— — — — — — — — — — Amtek Global Technology Pte Ltd, Ordinary Shares— — — — — — — — — — Amtek Global Technology Pte Ltd, Private Equity— — — — — — — — — — ATX Networks Corp, Common Stock— 1.7 — — 27.5 29.2 — — — — ATX Networks Corp, Class B-1 Common Stock— 5.0 — — — 5.0 — — — — ATX Networks Corp, Class B-2 Common Stock— 4.0 — — 5.0 9.0 — — — — Hilding Anders, Class A Common Stock— — — — — — — — — — Hilding Anders, Class B Common Stock— — — — — — — — — —  Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Hilding Anders, Class C Common Stock— — — — — — — — — — Hilding Anders, Equity Options— — — — — — — — — — HM Dunn Co Inc, Preferred Stock, Series A7.1 — — — 9.8 16.9 — — — — HM Dunn Co Inc, Preferred Stock, Series B— — — — — — — — — — JW Aluminum Co, Common Stock— — — — 2.4 2.4 — — — — JW Aluminum Co, Preferred Stock122.6 22.2 — — (32.3)112.5 0.6 19.7 — —  NCI Inc, Class A-1 Common Stock(4) — — — — — — — — — —  NCI Inc, Class B-1 Common Stock(4) — — — — — — — — — —  NCI Inc, Class C Common Stock(4) — 20.2 — — — 20.2 — — — —  NCI Inc, Class I-1 Common Stock(4) — — — — — — — — — —  One Call Care Management Inc, Common Stock(5) 2.4 — (2.1)— (0.3)— — — — —  One Call Care Management Inc, Preferred Stock A(5) 26.1 — (22.8)— (3.3)— — — — —  One Call Care Management Inc, Preferred Stock B(5) 9.2 — (8.0)— (1.2)— — — — — PRG III LLC, Preferred Stock, Series A PIK17.4 — — — 88.3 105.7 — — — — PRG III LLC, Preferred Stock, Series B PIK— — — — — — — — — — Sound United LLC, Common Stock77.5 — (17.3)— (60.2)— — — — — Warren Resources Inc, Common Stock20.4 — — — 8.8 29.2 — — — — Total$2,684.1 $801.5 $(334.7)$(71.4)$(171.1)$2,908.4 $58.2 $43.1 $— $228.7  ______________ (1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category. (2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category. (3)Interest, PIK, fee and dividend income presented for the full year ended December 31, 2022. (4)The Company held this investment as of December 31, 2021 but it was not deemed to be an “control” of the portfolio company as of December 31, 2021. Transfers in or out have been presented at amortized cost.

[30] Security or portion thereof held within Juniata River LLC and is pledged as collateral supporting the amounts outstanding under a term loan credit facility with JPMorgan Chase Bank, N.A. (see Note 9).

[31] Security or portion thereof held within Juniata River LLC and is pledged as collateral supporting the amounts outstanding under a term loan credit facility with JPMorgan Chase Bank, N.A. (see Note 9).

[32] Position or portion thereof unsettled as of December 31, 2022.

[33] Security is classified as Level 1 or Level 2 in the Company's fair value hierarchy (see Note 8).

[34] Security is classified as Level 1 or 2 in the Company's fair value hierarchy (see Note 8).

[35] Security or portion thereof held within FS KKR MM CLO 1 LLC (see Note 9).

[36] Security or portion thereof was held within FSK CLO as of December 31, 2022.

[37] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to be an “affiliated person” of a portfolio company if it owns 5% or more of the portfolio company’s voting securities and generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of March 31, 2023, the Company held investments in portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person as of March 31, 2023: Portfolio Company Fair Value at December 31, 2022 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation) Fair Value at March 31, 2023 Interest Income(3) PIK Income(3) Fee Income(3) Dividend and Other Income(3) Senior Secured Loans—First LienAffordable Care Inc$53.1 $2.9 $(1.5)$— $0.7 $55.2 $1.3 $0.2 $— $— Belk Inc8.8 0.9 (1.3)0.2 3.9 12.5 — — — — Belk Inc19.4 — — — (0.7)18.7 0.7 — — — Constellis Holdings LLC15.0 0.1 — — (0.1)15.0 0.6 — — —  Sungard Availability Services Capital Inc(4) 0.5 — (5.8)— 5.3 — — — — —  Sungard Availability Services Capital Inc(4) 2.0 — (2.0)— — — — — — — ThermaSys Corp8.6 — — — (2.5)6.1 — — — — Senior Secured Loans—Second LienBelk Inc 3.3 — — — (3.3)— — — — — Constellis Holdings LLC 13.5 — — — — 13.5 0.6 — — —  Sungard Availability Services Capital Inc(4) — — (13.5)— 13.5 — — — — — Asset Based FinanceHome Partners JV 2, Structured Mezzanine10.2 0.3 — — — 10.5 — 0.3 — — Home Partners JV 2, Private Equity 0.2 — — — — 0.2 — — — — Home Partners JV 2, Private Equity 5.0 — — — (0.5)4.5 — — — — Equity/OtherAffordable Care Inc, Preferred Stock 49.9 — — — (0.8)49.1 — 1.4 — — athenahealth Inc, Preferred Stock 231.2 — — — (0.5)230.7 — 7.2 — — Belk Inc, Common Stock — — — — — — — — — — Borden (New Dairy Opco), Common Stock 4.8 — — — 1.9 6.7 — — — — Constellis Holdings LLC, Private Equity 6.3 — — — (2.4)3.9 — — — — Fronton BV, Common Stock 1.0 — — — 0.2 1.2 — — — — Proserv Acquisition LLC, Class A Common Units 1.1 — — — 0.8 1.9 — — — — Proserv Acquisition LLC, Class A Preferred Units 9.5 — — — — 9.5 — — — — ThermaSys Corp, Common Stock — — — — — — — — — — ThermaSys Corp, Preferred Stock — — — — — — — — — — Total$443.4 $4.2 $(24.1)$0.2 $15.5 $439.2 $3.2 $9.1 $— $—  ______________ (1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category. (2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category. (3)Interest, PIK, fee and dividend income presented for the full three months ended March 31, 2023. (4)The Company held this investment as of March 31, 2023 but it was not deemed to be an “affiliated person” of the portfolio company as of March 31, 2023.

[38] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to be an “affiliated person” of a portfolio company if it owns 5% or more of the portfolio company’s voting securities and generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of December 31, 2022, the Company held investments in portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person for the year ended December 31, 2022: Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Senior Secured Loans—First LienAffordable Care Inc$— $— $— $— $— $— $— $— $— $— Affordable Care Inc59.9 16.2 (21.4)— (1.6)53.1 4.1 — 0.2 — athenahealth Inc— 6.8 (6.1)(0.7)— — 0.2 — 0.2 — Belk Inc49.2 4.7 (2.2)(0.2)(42.7)8.8 3.7 2.7 — — Belk Inc21.9 0.1 — — (2.6)19.4 2.2 — — — Borden (New Dairy Opco)9.0 — (9.0)0.6 (0.6)— 0.1 — 0.3 — Borden (New Dairy Opco)42.0 0.1 (42.0)1.7 (1.8)— 0.9 — 1.3 — Borden Dairy Co— — — (25.4)25.4 — — — — — Constellis Holdings LLC15.0 0.4 — — (0.4)15.0 1.8 — — — Fairway Group Holdings Corp0.7 — — (1.0)0.3 — — — — —  Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Fairway Group Holdings Corp— — — — — — — — — — Micronics Filtration Holdings Inc51.0 5.7 (51.7)— (5.0)— 0.2 0.3 — — Petroplex Acidizing Inc9.7 — (16.7)(5.3)12.3 — — — — —  Sorenson Communications LLC(4) 60.1 — (56.9)— (3.2)— — — — —  Sungard Availability Services Capital Inc(4) 6.0 0.1 — — (5.6)0.5 — — — —  Sungard Availability Services Capital Inc(4) — 4.5 (2.5)— — 2.0 0.3 0.2 0.3 — ThermaSys Corp3.5 — — — 5.1 8.6 — — — — Senior Secured Loans—Second LienBelk Inc6.7 — — — (3.4)3.3 — — — — Constellis Holdings LLC12.0 0.3 — — 1.2 13.5 2.0 — — — Fairway Group Holdings Corp— — — — — — — — — —   Sungard Availability Services Capital Inc(4) 8.3 — (0.2)— (8.1)— — — — — Subordinated Debtathenahealth Inc— 5.5 (4.7)(0.8)— — 0.1 — — — Asset Based FinanceHome Partners JV, Structured Mezzanine90.4 7.9 (98.1)4.6 (4.8)— 0.3 7.5 — — Home Partners JV, Private Equity9.4 — (11.8)6.4 (4.0)— — — — 0.7 Home Partners JV, Common Stock80.6 — (101.0)53.4 (33.0)— — — — 4.3 Home Partners JV 2, Structured Mezzanine3.5 6.7 — 0.1 (0.1)10.2 — 0.7 — — Home Partners JV 2, Private Equity0.1 0.1 — — — 0.2 — — — — Home Partners JV 2, Private Equity1.6 2.9 — — 0.5 5.0 — — — — Jet Edge International LLC, Preferred Stock16.8 — (30.1)9.2 4.1 — 0.7 — — — Jet Edge International LLC, Warrant4.5 — (13.5)13.5 (4.5)— — — — 1.5 Jet Edge International LLC, Term Loan75.6 — (75.9)— 0.3 — 11.6 2.3 3.3 — Orchard Marine Limited, Class B Common Stock— — — (3.1)3.1 — — — — — Orchard Marine Limited, Series A Preferred Stock64.6 0.1 (66.0)3.9 (2.6)— — — — — Equity/OtherAffordable Care Inc, Common Stock52.1 — — — (2.2)49.9 — 5.5 — — athenahealth Inc, Preferred Stock— 311.3 (47.5)(1.6)(31.0)231.2 — 29.0— — Belk Inc, Common Stock— — — — — — — — — — Borden (New Dairy Opco), Common Stock7.7 — — — (2.9)4.8 — — — — Constellis Holdings LLC, Private Equity0.2 — — — 6.1 6.3 — — — — Fairway Group Holdings Corp, Common Stock— — — — — — — — — — Fronton BV, Common Stock1.4 — — — (0.4)1.0 — — — — Micronics Filtration Holdings Inc, Common Stock— — (0.1)(0.5)0.6 — — — — — Micronics Filtration Holdings Inc, Preferred Stock, Series A0.1 — — (0.6)0.5 — — — — — Micronics Filtration Holdings Inc, Preferred Stock, Series B0.4 — (0.4)0.2 (0.2)— — — — — Micronics Filtration Holdings Inc, Preferred Stock, Series B PIK11.9 — (11.9)11.9 (11.9)— — — — —  Portfolio CompanyFair Value at December 31, 2021 Gross Additions(1) Gross Reductions(2) Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022 Interest Income(3) PIK Income(3) Fee Income(3) Dividend Income(3) Micronics Filtration Holdings Inc, Preferred Stock, Series C PIK6.2 — (6.2)6.2 (6.2)— — — — — Petroplex Acidizing Inc, Preferred Stock A— — — (4.9)4.9 — — — — — Petroplex Acidizing Inc, Warrant— — — — — — — — — — Proserv Acquisition LLC, Class A Common Units0.1 0.1 — — 0.9 1.1 — — — — Proserv Acquisition LLC, Class A Preferred Units9.3 — — — 0.2 9.5 — — — —   Sorenson Communications LLC, Common Stock(4) 67.5 — (65.4)22.9 (25.0)— — — — —   Sungard Availability Services Capital Inc, Common Stock(4) — — — (6.9)6.9 — — — — — ThermaSys Corp, Common Stock— — — — — — — — — — ThermaSys Corp, Preferred Stock— — — — — — — — — — Total$859.0 $373.5 $(741.3)$83.6 $(131.4)$443.4 $28.2 $48.2 $5.6 $6.5  ______________ (1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category. (2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category. (3)Interest, PIK, fee and dividend income presented for the full year ended December 31, 2022. (4)The Company held this investment as of December 31, 2021 but it was not deemed to be an “affiliated person” of the portfolio company as of December 31, 2021. Transfers in or out have been presented at amortized cost.

[39] Security held within CCT Holdings II, LLC, a wholly-owned subsidiary of the Company

[40] Security held within CCT Holdings II, LLC, a wholly-owned subsidiary of the Company.

[41] Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of March 31, 2023, the three-month London Interbank Offered Rate, or LIBOR or “L”, was 5.19%, the Euro Interbank Offered Rate, or EURIBOR, was 3.04%, Canadian Dollar Offer Rate, or CDOR was 5.03%, the Australian Bank Bill Swap Bid Rate, or BBSY, or “B”, was 3.77%, the Reykjavik Interbank Offered Rate, or REIBOR or "R", was 8.25%, the Stockholm Interbank Offered Rate, or STIBOR or "SR", was 3.36%, the Sterling Interbank Offered Rate, or SONIA or "SA", was 4.18%, the Secured Overnight Financing Rate, or SOFR, was 4.91% and the U.S. Prime Lending Rate, or Prime, was 8.00%. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.

[42] Security or portion thereof held within Cobbs Creek LLC and is pledged as collateral supporting the amounts outstanding under the senior secured revolving credit facility (see Note 9).

[43] Security or portion thereof held within Race Street Funding LLC. Security is available as collateral to support the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).

[44] Security or portion thereof held within Cobbs Creek LLC and is pledged as collateral supporting the amounts outstanding under the senior secured revolving credit facility (see Note 9).

[45] Security or portion thereof held within Race Street Funding LLC. Security is available as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).

[46] Position or portion thereof unsettled as of March 31, 2023.