Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS - Fair Value, Assets Measured on Recurring Basis (Details)

v3.22.4
INVESTMENTS - Fair Value, Assets Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Oct. 31, 2022
Sep. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value $ 621,583   $ 643,218
Investment, Identifier [Axis]: 8th Avenue Food & Provisions, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.10% [1],[2],[3],[4],[5]   10.90% [6],[7],[8],[9],[10]
Investment, Identifier [Axis]: ALS Education, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: ALS Education, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Antenna Research Associates, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 14.40% [1],[2],[3],[5],[13]   13.00% [6],[7],[8],[10],[14]
Investment, Identifier [Axis]: Arc Drilling Holdings LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 10.50% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Arc Drilling Holdings LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 10.50% [1],[2],[3],[5],[11]   12.60% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 14.00%    
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     12.60%
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 14.00%    
Investment, Identifier [Axis]: Axios Industrial Group, LLC– Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     12.60%
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(S) – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 15.40% [1],[2],[3],[5],[11],[16]   14.10% [6],[7],[8],[10],[12],[17]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(S) – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 15.40% [1],[2],[3],[5],[11],[16]   14.10% [6],[7],[8],[10],[12],[17]
Investment, Identifier [Axis]: B. Riley Financial, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 6.75% 6.75%  
Investment, Identifier [Axis]: CHA Holdings, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 13.50% [1],[2],[3],[4],[5],[18]   12.50% [6],[7],[8],[9],[10],[19]
Investment, Identifier [Axis]: CPM Holdings, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.60% [1],[2],[3],[4],[5]   11.40% [6],[7],[8],[9],[10]
Investment, Identifier [Axis]: Café Zupas – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   10.50% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Café Zupas – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 11.10%    
Investment, Identifier [Axis]: Café Zupas – Line of Credit,      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     10.50%
Investment, Identifier [Axis]: Café Zupas – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   10.50% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Chinese Yellow Pages Company – Line of Credit,      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.50% [1],[2],[3],[5],[13],[20],[21]   10.30% [6],[7],[8],[10],[14],[22],[23]
Investment, Identifier [Axis]: DKI Ventures, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.00% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Defiance Integrated Technologies, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 13.90% [1],[2],[3],[5],[13]   12.60% [6],[7],[8],[10],[14]
Investment, Identifier [Axis]: ENET Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     10.40%
Investment, Identifier [Axis]: ENET Holdings, LLC – Term Debt 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 11.60%    
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. (S) – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 9.90% [1],[2],[3],[5],[11],[16],[24]   8.60% [6],[7],[8],[10],[14],[17]
Investment, Identifier [Axis]: Eegee’s LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.10% [1],[2],[3],[5],[11]   11.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Eegee’s LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.10% [1],[2],[3],[5],[11]   11.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Eegee’s LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 12.10%    
Investment, Identifier [Axis]: Eegee’s LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     11.40%
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.60% [1],[2],[3],[5],[11]   11.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC – Term Debt 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC – Term Debt 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.60% [1],[2],[3],[5],[11]   11.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     11.40%
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 12.60%    
Investment, Identifier [Axis]: Fix-It Group, LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.50% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: Fix-It Group, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.50% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: Fix-It Group, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.50% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: GFRC 360, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: GFRC 360, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Giving Home Health Care, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.50% [1],[2],[3],[5],[11],[25]   12.50% [6],[7],[8],[10],[12],[26]
Investment, Identifier [Axis]: Gray Matter Systems, LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.30% [1],[2],[3],[5],[11],[25]   11.30% [6],[7],[8],[10],[12],[26]
Investment, Identifier [Axis]: Gray Matter Systems, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[26]     11.30%
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   9.90% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   9.90% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Term Debt 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   9.90% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Term Debt 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.10% [1],[2],[3],[5],[11]   9.90% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: Imperative Holdings Corporation – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 14.10% [1],[2],[3],[5],[11]   13.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Lonestar EMS, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[14],[26]     8.00%
Investment, Identifier [Axis]: MCG Energy Solutions, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     10.60%
Investment, Identifier [Axis]: MCG Energy Solutions, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.00% [1],[2],[3],[5],[11]   10.60% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Ohio Armor Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Pansophic Learning, Ltd. – Term Debt 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.60% [1],[2],[3],[5],[11]   10.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Pansophic Learning, Ltd. – Term Debt 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.60% [1],[2],[3],[5],[11]   10.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Salt & Straw, LLC – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Salt & Straw, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.40% [1],[2],[3],[5],[11]   11.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Salvo Technologies, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     12.50%
Investment, Identifier [Axis]: Salvo Technologies, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 13.90%    
Investment, Identifier [Axis]: Sea Link International IRB, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11],[25] 11.30%    
Investment, Identifier [Axis]: Sokol & Company Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     10.00%
Investment, Identifier [Axis]: Sokol & Company Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 11.40%    
Investment, Identifier [Axis]: SpaceCo Holdings, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.80% [1],[2],[3],[5],[11],[18]   10.80% [6],[7],[8],[10],[12],[19]
Investment, Identifier [Axis]: SpaceCo Holdings, LLC – Term Deb      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[19]     10.80%
Investment, Identifier [Axis]: SpaceCo Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11],[18] 11.80%    
Investment, Identifier [Axis]: Springfield, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 14.40% [1],[2],[3],[5],[11]   13.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: TNCP Intermediate HoldCo, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 8.00% [1],[2],[3],[5],[13],[25]   8.00% [6],[7],[8],[10],[14],[26]
Investment, Identifier [Axis]: Tailwind Smith Cooper Intermediate Corporation – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 13.40% [1],[2],[3],[4],[5]   12.10% [6],[7],[8],[9],[10]
Investment, Identifier [Axis]: Turn Key Health Clinics, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.60% [1],[2],[3],[5],[11]   10.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Turn Key Health Clinics, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.60% [1],[2],[3],[5],[11]   10.40% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     9.50%
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[15]     9.50%
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     9.50%
Investment, Identifier [Axis]: Unirac, Inc. – Delayed Draw Term Loan      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 10.90%    
Investment, Identifier [Axis]: Unirac, Inc. – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 10.90%    
Investment, Identifier [Axis]: Unirac, Inc. – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 10.90%    
Investment, Identifier [Axis]: Viva Railings, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 11.40% [1],[2],[3],[5],[11]   10.10% [6],[7],[8],[10],[12]
Investment, Identifier [Axis]: Viva Railings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 11.40%    
Investment, Identifier [Axis]: Viva Railings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12]     10.10%
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 14.90% [1],[2],[3],[5],[13]   13.60% [6],[7],[8],[10],[14]
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 14.90% [1],[2],[3],[5],[13]   13.60% [6],[7],[8],[10],[14]
Investment, Identifier [Axis]: WorkforceQA, LLC – Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [1],[2],[3],[5],[11] 10.90%    
Investment, Identifier [Axis]: WorkforceQA, LLC – Term Debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash 12.90% [1],[2],[3],[5],[11],[27]   11.60% [6],[7],[8],[10],[12],[19],[28]
Investment, Identifier [Axis]: WorkforceQA, LLC– Line of Credit      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investment, interest rate, paid in cash [6],[7],[8],[10],[12],[19]     9.60%
Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value $ 619,194   $ 643,160
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 619,194   643,160
Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 541,902   568,356
Significant Unobservable Inputs (Level 3) | Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 41,940   39,091
Significant Unobservable Inputs (Level 3) | Control investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 35,352   35,713
Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 2,358   0
Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 31   58
Secured first lien debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 450,243   463,858
Secured first lien debt | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 450,243   463,858
Secured first lien debt | Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 399,531   413,631
Secured first lien debt | Significant Unobservable Inputs (Level 3) | Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 35,048   34,804
Secured first lien debt | Significant Unobservable Inputs (Level 3) | Control investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 15,664   15,423
Secured first lien debt | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Secured first lien debt | Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Secured second lien debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 114,755   115,928
Secured second lien debt | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 114,755   115,928
Secured second lien debt | Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 107,170   108,263
Secured second lien debt | Significant Unobservable Inputs (Level 3) | Control investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 7,585   7,665
Secured second lien debt | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Secured second lien debt | Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Unsecured debt      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 2,403   55
Unsecured debt | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 45   55
Unsecured debt | Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 45   55
Unsecured debt | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 2,358   0
Unsecured debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Investment, Identifier [Axis]: B. Riley Financial, Inc.      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 2,400    
Unsecured debt | Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Preferred equity      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 26,140   27,046
Preferred equity | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 26,140   27,046
Preferred equity | Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 14,592   17,719
Preferred equity | Significant Unobservable Inputs (Level 3) | Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 5,713   3,640
Preferred equity | Significant Unobservable Inputs (Level 3) | Control investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 5,835   5,687
Preferred equity | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Preferred equity | Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Common equity/equivalents      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 28,042   36,331
Common equity/equivalents | Significant Unobservable Inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 28,011   36,273
Common equity/equivalents | Significant Unobservable Inputs (Level 3) | Non-Control/Non-Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 20,564   28,688
Common equity/equivalents | Significant Unobservable Inputs (Level 3) | Affiliate investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 1,179   647
Common equity/equivalents | Significant Unobservable Inputs (Level 3) | Control investments | Fair Value, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 6,268   6,938
Common equity/equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 0   0
Common equity/equivalents | Significant Other Observable Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 31   58
Common equity/equivalents | Significant Other Observable Inputs (Level 2) | Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value 31,000   58
Common equity/equivalents | Significant Other Observable Inputs (Level 2) | Investment, Identifier [Axis]: Leeds Acquisition Holdings, LLC      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments at fair value $ 200   $ 6,400
[1] Certain of the securities listed in this schedule are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $555.5 million at fair value, are pledged as collateral under our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Under the Investment Company Act of 1940, as amended (the “1940 Act”), we may not acquire any non-qualifying assets unless, at the time such acquisition is made, qualifying assets represent at least 70% of our total assets. As of December 31, 2022, our investments in Leeds Novamark Capital I, L.P. (“Leeds”), Funko Acquisition Holdings, LLC (“Funko”), and B. Riley Financial, Inc. (“B. Riley”) are considered non-qualifying assets under Section 55 of the 1940 Act. Such non-qualifying assets represent 0.4% of total investments, at fair value, as of December 31, 2022.
[2] Unless indicated otherwise, all of our investments are valued using Level 3 inputs within the ASC 820 fair value hierarchy. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[3] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of December 31, 2022.
[4] Fair value was based on the indicative bid price on or near December 31, 2022, offered by the respective syndication agent’s trading desk.
[5] Unless indicated otherwise, all cash interest rates are indexed to 30-day London Interbank Offered Rate (“LIBOR” or “L”), which was 4.39% as of December 31, 2022 or one- month Secured Overnight Financing Rate (“SOFR” or “S”), which was 4.36% as of December 31, 2022. If applicable, paid-in-kind (“PIK”) interest rates are noted separately from the cash interest rate. Certain securities are subject to an interest rate floor. The cash interest rate is the greater of the floor or the reference rate plus a spread. Due dates represent the contractual maturity date.
[6] Unless indicated otherwise, all of our investments are valued using Level 3 inputs within the ASC 820 fair value hierarchy. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[7] Certain of the securities listed in this schedule are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $577.6 million at fair value, are pledged as collateral under our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Under the Investment Company Act of 1940, as amended (the “1940 Act”), we may not acquire any non-qualifying assets unless, at the time such acquisition is made, qualifying assets represent at least 70% of our total assets. As of September 30, 2022, our investments in Leeds Novamark Capital I, L.P. (“Leeds”) and Funko Acquisition Holdings, LLC (“Funko”) are considered non-qualifying assets under Section 55 of the 1940 Act. Such non-qualifying assets represent 1.0% of total investments, at fair value, as of September 30, 2022.
[8] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of September 30, 2022.
[9] Fair value was based on the indicative bid price on or near September 30, 2022, offered by the respective syndication agent’s trading desk.
[10] Unless indicated otherwise, all cash interest rates are indexed to 30-day London Interbank Offered Rate (“LIBOR” or “L”), which was 3.14% as of September 30, 2022. If applicable, paid-in-kind (“PIK”) interest rates are noted separately from the cash interest rate. Certain securities are subject to an interest rate floor. The cash interest rate is the greater of the floor or LIBOR plus a spread. Due dates represent the contractual maturity date.
[11] Fair value was based on an internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC (“ICE”).
[12] Fair value was based on an internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC (“ICE”).
[13] Fair value was based on the total enterprise value of the portfolio company, which was then allocated to the portfolio company’s securities in order of their relative priority in the capital structure.
[14] Fair value was based on the total enterprise value of the portfolio company, which was then allocated to the portfolio company’s securities in order of their relative priority in the capital structure.
[15] The cash interest rate on this investment was indexed to the 30-day Secured Overnight Financing Rate (“SOFR”), which was 3.04% as of September 30, 2022.
[16] One of our affiliated funds, Gladstone Investment Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission.
[17] One of our affiliated funds, Gladstone Investment Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission.
[18] The cash interest rate on this investment was indexed to 90-day LIBOR, which was 4.77% as of December 31, 2022.
[19] The cash interest rate on this investment was indexed to 90-day LIBOR, which was 3.75% as of September 30, 2022.
[20] Investment maturity date has passed. Investment continues to make applicable interest payments.
[21] The cash interest rate on this investment was indexed to the U.S. Prime Rate (“PRIME”), which was 7.50% as of December 31, 2022.
[22] Investment maturity date has passed. Investment continues to make applicable interest payments.
[23] The cash interest rate on this investment was indexed to the U.S. Prime Rate (“PRIME”), which was 6.25% as of September 30, 2022.
[24] Debt security is on non-accrual status.
[25] Debt security has a fixed interest rate.
[26] Debt security has a fixed interest rate.
[27] The Company has entered into an agreement that entitles it to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 6.5% (Floor 1.0%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[28] The Company has entered into an agreement that entitles it to the "last out" tranche of the first lien secured loan, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 6.50% (Floor 1.0%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.