Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED SCHEDULE OF INVESTMENTS (Parentheticals)

v3.22.2.2
CONSOLIDATED SCHEDULE OF INVESTMENTS (Parentheticals) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Sep. 30, 2022
Mar. 31, 2022
Mar. 31, 2021
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 166.80% [1],[2],[3],[4] 160.20% [5],[6],[7],[8],[9]  
Investment company, committed capital $ 9,200   $ 14,500
Investments owned, fair value $ 737,935 $ 714,396 [9]  
Percentage threshold of qualified assets representing total assets in order to acquire non-qualified assets 70.00% 70.00%  
Investment, interest rate, paid in cash 3.10% 0.50%  
Secured borrowing $ 0 $ 5,096  
Cumulative net unrealized appreciation   140,800  
Cumulative gross unrealized depreciation   97,100  
Cumulative gross unrealized appreciation for federal income tax purposes   43,800  
Based on a tax cost   670,600  
Mining, Steel, Iron and Non-Precious Metals      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 23,368 $ 24,250  
Funko Acquisition Holdings, LLC      
Schedule of Investments [Line Items]      
Percentage of acquired non-qualifying assets of total assets 0.10% 0.10%  
Collateral Pledged      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 624,900 $ 537,500  
Secured First Lien Debt      
Schedule of Investments [Line Items]      
Investments owned, fair value 420,907 425,087  
Secured Second Lien Debt      
Schedule of Investments [Line Items]      
Investments owned, fair value 76,751 67,958  
Preferred Equity      
Schedule of Investments [Line Items]      
Investments owned, fair value 229,430 217,599  
Common Equity/ Equivalents      
Schedule of Investments [Line Items]      
Investments owned, fair value 10,847 3,752  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Common Stock Warrants      
Schedule of Investments [Line Items]      
Investments owned, fair value [10],[11],[12]   921  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit      
Schedule of Investments [Line Items]      
Line of credit facility, available $ 0 [1],[2],[3],[4],[13],[14] $ 0 [5],[6],[7],[8],[10],[11],[15]  
Investment, reference rate and spread 11.00% [1],[2],[3],[4],[13],[14] 11.00% [5],[6],[7],[8],[10],[11],[15]  
Investment interest rate 14.10% [1],[2],[3],[4],[13],[14] 13.00% [5],[6],[7],[8],[10],[11],[15]  
Investments owned, fair value $ 2,800 [13],[14] $ 2,800 [10],[11],[15]  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value [10],[11],[12]   $ 14,746  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[11],[15]   11.00%  
Investment interest rate [5],[6],[7],[8],[10],[11],[15]   13.00%  
Investments owned, fair value [10],[11],[15]   $ 14,000  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Common Stock Warrants      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[14],[16],[17] $ 58    
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13],[14] 11.00%    
Investment interest rate [1],[2],[3],[4],[13],[14] 14.10%    
Investments owned, fair value [13],[14] $ 14,000    
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.– Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[14],[17] 6,342    
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value [10],[12]   $ 17,150  
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10]   10.00%  
Investment interest rate [5],[6],[7],[8],[10]   12.00%  
Investments owned, fair value [10]   $ 48,000  
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 27,980 [13],[17] $ 21,485 [10],[12]  
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 1      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.00% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[10]  
Investment interest rate 13.10% [1],[2],[3],[4],[13] 12.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 17,700 [13] $ 17,700 [10]  
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.00% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[10]  
Investment interest rate 13.10% [1],[2],[3],[4],[13] 12.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 6,850 [13] $ 6,850 [10]  
Investment, Identifier [Axis]: Counsel Press, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 27,246 [13],[17] $ 25,374 [10],[12]  
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 1      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 11.80% [1],[2],[3],[4],[13] 11.80% [5],[6],[7],[8],[10]  
Investment interest rate 14.90% [1],[2],[3],[4],[13] 12.80% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 21,100 [13] $ 21,100 [10]  
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 13.00% [1],[2],[3],[4],[13] 13.00% [5],[6],[7],[8],[10]  
Investment interest rate 16.10% [1],[2],[3],[4],[13] 14.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 6,400 [13] $ 6,400 [10]  
Investment, Identifier [Axis]: Country Club Enterprises, LLC - Guaranty      
Schedule of Investments [Line Items]      
Investments owned, fair value [18]   0  
Investment, Identifier [Axis]: Country Club Enterprises, LLC – Guaranty      
Schedule of Investments [Line Items]      
Investment company, committed capital 1,000 [1],[2],[3],[4],[19] $ 1,000 [5],[6],[7],[8],[18]  
Investments owned, fair value [19] $ 0    
Investment, Identifier [Axis]: Country Club Enterprises, LLC – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 8.00% [1],[2],[3],[4],[20] 8.00% [5],[6],[7],[8],[21]  
Investment interest rate 11.10% [1],[2],[3],[4],[20] 10.00% [5],[6],[7],[8],[21]  
Investments owned, fair value $ 1,499 [20] $ 1,498 [21]  
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc - Preferred Equity      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[17] 21,000    
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Line of Credit      
Schedule of Investments [Line Items]      
Line of credit facility, available [1],[2],[3],[4],[13] $ 2,200    
Investment, reference rate and spread [1],[2],[3],[4],[13] 8.00%    
Investment interest rate [1],[2],[3],[4],[13] 11.10%    
Investments owned, fair value [13] $ 800    
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13] 11.00%    
Investment interest rate [1],[2],[3],[4],[13] 14.10%    
Investments owned, fair value [13] $ 38,250    
Investment, Identifier [Axis]: Diligent Delivery Systems – Common Stock Warrants      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 1,827 [13],[17] $ 1,533 [10],[12]  
Investment, Identifier [Axis]: Diligent Delivery Systems – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 9.00% [1],[2],[3],[4],[20] 9.00% [5],[6],[7],[8],[21]  
Investment interest rate 12.10% [1],[2],[3],[4],[20] 11.00% [5],[6],[7],[8],[21]  
Investments owned, fair value $ 13,000 [20] $ 13,000 [21]  
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 0 [13],[14],[17] $ 0 [10],[11],[12],[15]  
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[11],[21]   5.50%  
Investment interest rate [5],[6],[7],[8],[11],[21]   7.50%  
Investments owned, fair value [11],[21]   $ 9,072  
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.– Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13],[14] 5.50%    
Investment interest rate [1],[2],[3],[4],[13],[14] 8.60%    
Investments owned, fair value [13],[14] $ 3,825    
Investment, Identifier [Axis]: Educators Resource, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 18,937 [13],[17] $ 19,252 [10],[12]  
Investment, Identifier [Axis]: Educators Resource, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.50% [1],[2],[3],[4],[13] 10.50% [5],[6],[7],[8],[10]  
Investment interest rate 13.60% [1],[2],[3],[4],[13] 13.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 20,000 [13] $ 20,000 [10]  
Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC – Common Units      
Schedule of Investments [Line Items]      
Investments owned, fair value 58 [14],[17],[22] 74 [11],[12],[23],[24]  
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 0 [13],[17] $ 0 [10],[12]  
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 1      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 4.10% [1],[2],[3],[4],[13] 4.10% [5],[6],[7],[8],[10]  
Investment interest rate 7.20% [1],[2],[3],[4],[13] 7.10% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 6,102 [13] $ 6,500 [10]  
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 7.00% [1],[2],[3],[4],[13] 7.00% [5],[6],[7],[8],[10]  
Investment interest rate 10.10% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 17,644 [13] $ 18,796 [10]  
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value 0 [13],[17] 0 [10],[12]  
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 0 [13],[17] $ 3,263 [10],[12]  
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.00% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[11],[25]  
Investment interest rate 13.50% [1],[2],[3],[4],[13] 13.50% [5],[6],[7],[8],[11],[25]  
Investments owned, fair value $ 12,200 [13] $ 13,300 [11],[25]  
Investment, Identifier [Axis]: Gladstone SOG Investments, Inc. - Common Stock(      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[17] 713    
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 21,454 [13],[17] $ 17,807 [10],[12]  
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 7.50% [1],[2],[3],[4],[13] 9.50% [5],[6],[7],[8],[10]  
Investment interest rate 10.60% [1],[2],[3],[4],[13] 12.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 57,700 [13] $ 27,700 [10]  
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 14,051 [13],[17] $ 16,405 [10],[12],[15]  
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 11.00% [1],[2],[3],[4],[13] 11.00% [5],[6],[7],[8],[10],[15]  
Investment interest rate 14.10% [1],[2],[3],[4],[13] 13.00% [5],[6],[7],[8],[10],[15]  
Investments owned, fair value $ 22,000 [13] $ 22,000 [10],[15]  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Guaranty      
Schedule of Investments [Line Items]      
Investment company, committed capital [5],[6],[7],[8],[15],[18]     $ 9,250
Investments owned, fair value [15],[18]   $ 0  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 1      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 6.00% [1],[2],[3],[4],[13],[26] 6.00% [5],[6],[7],[8],[10],[15],[27]  
Investment interest rate 9.10% [1],[2],[3],[4],[13],[26] 8.00% [5],[6],[7],[8],[10],[15],[27]  
Investments owned, fair value $ 10,900 [13],[26] $ 15,023 [10],[15],[27]  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[15],[27]   10.30%  
Investment interest rate [5],[6],[7],[8],[10],[15],[27]   11.80%  
Investments owned, fair value [10],[15],[27]   $ 23,672  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 3      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[15],[27]   6.00%  
Investment interest rate [5],[6],[7],[8],[10],[15],[27]   8.00%  
Investments owned, fair value [10],[15],[27]   $ 2,219  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Line of Credit      
Schedule of Investments [Line Items]      
Line of credit facility, available [1],[2],[3],[4],[13],[26] $ 4    
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 6.00%    
Investment interest rate [1],[2],[3],[4],[13],[26] 9.10%    
Investments owned, fair value [13],[26] $ 660    
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 10.30%    
Investment interest rate [1],[2],[3],[4],[13],[26] 13.40%    
Investments owned, fair value [13],[26] $ 17,176    
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 3      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 6.00%    
Investment interest rate [1],[2],[3],[4],[13],[26] 9.10%    
Investments owned, fair value [13],[26] $ 1,610    
Investment, Identifier [Axis]: J.R. Hobbs Co. – Atlanta, LLC – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value 0 [13],[17] 0 [10],[12],[15]  
Investment, Identifier [Axis]: Mason West, LLC – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 5,615 [13],[17] $ 7,553 [10],[12]  
Investment, Identifier [Axis]: Mason West, LLC – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.00% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[10]  
Investment interest rate 13.10% [1],[2],[3],[4],[13] 12.50% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 25,250 [13] $ 25,250 [10]  
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Line of Credit      
Schedule of Investments [Line Items]      
Line of credit facility, available $ 2,000 [1],[2],[3],[4],[13] $ 2,000 [5],[6],[7],[8],[10]  
Investment, reference rate and spread 8.00% [1],[2],[3],[4],[13] 8.00% [5],[6],[7],[8],[10]  
Investment interest rate 11.10% [1],[2],[3],[4],[13] 10.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 0 [13] $ 0 [10]  
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 19,040 [13],[17] $ 10,223 [10],[12]  
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 10.50% [1],[2],[3],[4],[13] 10.50% [5],[6],[7],[8],[10]  
Investment interest rate 13.60% [1],[2],[3],[4],[13] 12.50% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 34,050 [13] $ 27,700 [10]  
Investment, Identifier [Axis]: Nth Degree Investment Group, LLC – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value 8,191 [13],[17] 511 [10],[12]  
Investment, Identifier [Axis]: Old World Christmas, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 43,629 [13],[17] $ 37,842 [10],[12],[15]  
Investment, Identifier [Axis]: Old World Christmas, Inc. – Secured First Lien Term Loan      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 9.50% [1],[2],[3],[4],[13] 9.50% [5],[6],[7],[8],[10],[15]  
Investment interest rate 12.60% [1],[2],[3],[4],[13] 11.00% [5],[6],[7],[8],[10],[15]  
Investments owned, fair value $ 25,000 [13] $ 25,000 [10],[15]  
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value [10],[12],[15]   $ 0  
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock(      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[17] $ 0    
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 5.50% [1],[2],[3],[4],[13] 5.50% [5],[6],[7],[8],[10]  
Investment interest rate 8.60% [1],[2],[3],[4],[13] 7.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 23,642 [13] $ 26,618 [10]  
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit      
Schedule of Investments [Line Items]      
Line of credit facility, available [1],[2],[3],[4],[20] $ 0    
Investment, reference rate and spread [1],[2],[3],[4],[20] 7.00%    
Investment interest rate [1],[2],[3],[4],[20] 10.10%    
Unused fee percentage [1],[2],[3],[4],[20] 0.30%    
Investments owned, fair value [20] $ 2,410    
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit,      
Schedule of Investments [Line Items]      
Line of credit facility, available [5],[6],[7],[8],[21]   $ 150  
Investment, reference rate and spread [5],[6],[7],[8],[21]   7.00%  
Investment interest rate [5],[6],[7],[8],[21]   9.00%  
Unused fee percentage [5],[6],[7],[8],[21]   0.30%  
Investments owned, fair value [21]   $ 1,920  
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 0 [13],[17] $ 0 [10],[12]  
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 11.00% [1],[2],[3],[4],[20] 11.00% [5],[6],[7],[8],[21]  
Investment interest rate 14.10% [1],[2],[3],[4],[20] 13.00% [5],[6],[7],[8],[21]  
Investments owned, fair value $ 3,024 [20] $ 3,072 [21]  
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value 0 [13],[17] 0 [10],[12],[24]  
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 2,543 [13],[17] $ 0 [10],[12]  
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 1      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 7.00% [1],[2],[3],[4],[13] 7.00% [5],[6],[7],[8],[21],[27]  
Investment interest rate 10.10% [1],[2],[3],[4],[13] 9.00% [5],[6],[7],[8],[21],[27]  
Investments owned, fair value $ 3,128 [13] $ 2,909 [21],[27]  
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 7.00% [1],[2],[3],[4],[13] 7.00% [5],[6],[7],[8],[21],[27]  
Investment interest rate 10.10% [1],[2],[3],[4],[13] 9.00% [5],[6],[7],[8],[21],[27]  
Investments owned, fair value $ 11,736 [13] $ 10,914 [21],[27]  
Investment, Identifier [Axis]: Schylling, Inc. – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 16,475 [13],[17] $ 17,820 [10],[12]  
Investment, Identifier [Axis]: Schylling, Inc. – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread 11.00% [1],[2],[3],[4],[13] 11.00% [5],[6],[7],[8],[10]  
Investment interest rate 14.10% [1],[2],[3],[4],[13] 13.00% [5],[6],[7],[8],[10]  
Investments owned, fair value $ 27,981 [13] $ 27,981 [10]  
Investment, Identifier [Axis]: The Maids International, LLC – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 0 [13],[17] $ 2,679 [10],[12],[15]  
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[15]   10.50%  
Investment interest rate [5],[6],[7],[8],[10],[15]   12.00%  
Investments owned, fair value [10],[15]   $ 28,560  
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13] 10.50%    
Investment interest rate [1],[2],[3],[4],[13] 13.60%    
Investments owned, fair value [13] $ 28,560    
Investment, Identifier [Axis]: The Mountain Corporation 1      
Schedule of Investments [Line Items]      
Line of credit facility, available [5],[6],[7],[8],[10],[15],[27]   $ 0  
Investment, reference rate and spread [5],[6],[7],[8],[10],[15],[27]   5.00%  
Investment interest rate [5],[6],[7],[8],[10],[15],[27]   9.00%  
Investments owned, fair value [10],[15],[27]   $ 3,400  
Investment, Identifier [Axis]: The Mountain Corporation 2      
Schedule of Investments [Line Items]      
Line of credit facility, available [5],[6],[7],[8],[10],[15],[27]   $ 100  
Investment, reference rate and spread [5],[6],[7],[8],[10],[15],[27]   5.00%  
Investment interest rate [5],[6],[7],[8],[10],[15],[27]   9.00%  
Investments owned, fair value [10],[15],[27]   $ 800  
Investment, Identifier [Axis]: The Mountain Corporation – Common Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value 0 [13],[17] 0 [10],[12]  
Investment, Identifier [Axis]: The Mountain Corporation – Delayed Draw Term Debt      
Schedule of Investments [Line Items]      
Line of credit facility, available $ 0 [1],[2],[3],[4],[13],[26] $ 0 [5],[6],[7],[8],[10],[15],[27]  
Investment, reference rate and spread 4.00% [1],[2],[3],[4],[13],[26] 4.00% [5],[6],[7],[8],[10],[15],[27]  
Investment interest rate 7.10% [1],[2],[3],[4],[13],[26] 7.00% [5],[6],[7],[8],[10],[15],[27]  
Investments owned, fair value $ 0 [13],[26] $ 118 [10],[15],[27]  
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 1      
Schedule of Investments [Line Items]      
Line of credit facility, available [1],[2],[3],[4],[13],[26] $ 0    
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 5.00%    
Investment interest rate [1],[2],[3],[4],[13],[26] 9.00%    
Investments owned, fair value [13],[26] $ 2,411    
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 2      
Schedule of Investments [Line Items]      
Line of credit facility, available [1],[2],[3],[4],[13],[26] $ 0    
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 5.00%    
Investment interest rate [1],[2],[3],[4],[13],[26] 9.00%    
Investments owned, fair value [13],[26] $ 0    
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value [10],[12]   $ 0  
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock(      
Schedule of Investments [Line Items]      
Investments owned, fair value [13],[17] $ 0    
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[15],[27]   4.00%  
Investment interest rate [5],[6],[7],[8],[10],[15],[27]   7.00%  
Investments owned, fair value [10],[15],[27]   $ 923  
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13],[26] 4.00%    
Investment interest rate [1],[2],[3],[4],[13],[26] 7.10%    
Investments owned, fair value [13],[26] $ 0    
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd. - Preferred Stock      
Schedule of Investments [Line Items]      
Investments owned, fair value $ 5,118 [13],[17] $ 6,000 [10],[12],[15]  
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [5],[6],[7],[8],[10],[15]   10.00%  
Investment interest rate [5],[6],[7],[8],[10],[15]   11.50%  
Investments owned, fair value [10],[15]   $ 18,250  
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 1      
Schedule of Investments [Line Items]      
Line of credit facility, available [5],[6],[7],[8],[10],[15]   $ 2  
Investment, reference rate and spread [5],[6],[7],[8],[10],[15]   8.50%  
Investment interest rate [5],[6],[7],[8],[10],[15]   10.00%  
Investments owned, fair value [10],[15]   $ 0  
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2      
Schedule of Investments [Line Items]      
Investment, reference rate and spread [1],[2],[3],[4],[13] 10.00%    
Investment interest rate [1],[2],[3],[4],[13] 13.10%    
Investments owned, fair value [13] $ 18,250    
Non-Control/Non-Affiliate Investments      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 110.50% [1],[2],[3],[4],[28] 99.20% [5],[6],[7],[8],[24]  
Investments owned, fair value $ 488,999 [28] $ 442,124 [24]  
Non-Control/Non-Affiliate Investments | Secured First Lien Debt      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 61.90% [1],[2],[3],[4],[28] 52.40% [5],[6],[7],[8],[24]  
Investments owned, fair value $ 273,715 [28] $ 233,673 [24]  
Non-Control/Non-Affiliate Investments | Secured Second Lien Debt      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 12.00% [1],[2],[3],[4],[28] 15.00% [5],[6],[7],[8],[24]  
Investments owned, fair value $ 53,109 [28] $ 66,917 [24]  
Non-Control/Non-Affiliate Investments | Preferred Equity      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 36.20% [1],[2],[3],[4],[28] 31.40% [5],[6],[7],[8],[24]  
Investments owned, fair value $ 160,290 [28] $ 139,927 [24]  
Non-Control/Non-Affiliate Investments | Common Equity/ Equivalents      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 0.40% [1],[2],[3],[4],[28] 0.40% [5],[6],[7],[8],[24]  
Investments owned, fair value $ 1,885 [28] $ 1,607 [24]  
Affiliate Investments      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 56.10% [1],[2],[3],[4],[16] 60.80% [5],[6],[7],[8],[15]  
Investments owned, fair value $ 248,223 [16] $ 271,559 [15]  
Affiliate Investments | Secured First Lien Debt      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 33.30% [1],[2],[3],[4],[16] 42.90% [5],[6],[7],[8],[15]  
Investments owned, fair value $ 147,192 [16] $ 191,414 [15]  
Affiliate Investments | Secured First Lien Debt | Mining, Steel, Iron and Non-Precious Metals      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 4.10% [1],[2],[3],[4],[16] 4.10% [5],[6],[7],[8],[15]  
Investments owned, fair value [15]   $ 18,250  
Affiliate Investments | Secured Second Lien Debt      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 5.30% [1],[2],[3],[4],[16] 0.20% [5],[6],[7],[8],[15]  
Investments owned, fair value $ 23,642 [16] $ 1,041 [15]  
Affiliate Investments | Preferred Equity      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 15.60% [1],[2],[3],[4],[16] 17.40% [5],[6],[7],[8],[15]  
Investments owned, fair value $ 69,140 [16] $ 77,672 [15]  
Affiliate Investments | Preferred Equity | Mining, Steel, Iron and Non-Precious Metals      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 1.10% [1],[2],[3],[4],[16] 1.30% [5],[6],[7],[8],[15]  
Affiliate Investments | Common Equity/ Equivalents      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 1.90% [1],[2],[3],[4],[16] 0.30% [5],[6],[7],[8],[15]  
Investments owned, fair value $ 8,249 [16] $ 1,432 [15]  
Control Investments      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets 0.20% [1],[2],[3],[4],[29] 0.20% [5],[6],[7],[8],[30]  
Investments owned, fair value $ 713 [29] $ 713 [30]  
Control Investments | Preferred Equity      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets [5],[6],[7],[8],[30]   0.20%  
Control Investments | Common Equity/ Equivalents      
Schedule of Investments [Line Items]      
Investment owned, percent of net assets [1],[2],[3],[4],[29] 0.20%    
Investments owned, fair value $ 713 [29] $ 713 [30]  
[1] Certain of the securities listed are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $624.9 million at fair value, are pledged as collateral to our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Additionally, under Section 55 of 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 investment in Funko Acquisition Holdings, LLC ("Funko") was considered a non-qualifying asset under Section 55 of the 1940 Act and represented less than 0.1% of total investments, at fair value.
[2] Unless indicated otherwise, all cash interest rates are indexed to 30-day London Interbank Offered Rate ("LIBOR" or "L"), which was 3.1% as of September 30, 2022. If applicable, paid-in-kind 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 30-day LIBOR plus a spread. Due dates represent the contractual maturity date.
[3] Unless indicated otherwise, all of our investments are valued using Level 3 inputs within the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 820, "Fair Value Measurements and Disclosures" ("ASC 820") fair value hierarchy. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[4] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of September 30, 2022.
[5] Certain of the securities listed are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $537.5 million at fair value, are pledged as collateral to our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Additionally, under Section 55 of 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 March 31, 2022, our investment in Funko was considered a non-qualifying asset under Section 55 of the 1940 Act and represented less than 0.1% of total investments, at fair value.
[6] Unless indicated otherwise, all cash interest rates are indexed to 30-day LIBOR, which was 0.5% as of March 31, 2022. If applicable, paid-in-kind 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 30-day LIBOR plus a spread. Due dates represent the contractual maturity date.
[7] 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.
[8] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of March 31, 2022.
[9] Cumulative gross unrealized appreciation for federal income tax purposes is $140.8 million; cumulative gross unrealized depreciation for federal income tax purposes is $97.1 million. Cumulative net unrealized appreciation is $43.8 million, based on a tax cost of $670.6 million.
[10] Fair value was based on the total enterprise value of the portfolio company, which is generally allocated to the portfolio company’s securities in order of their relative priority in the capital structure. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[11] One of our affiliated funds, Gladstone Capital Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission.
[12] Security is non-income producing.
[13] Fair value was based on the total enterprise value of the portfolio company, which is generally allocated to the portfolio company’s securities in order of their relative priority in the capital structure. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[14] One of our affiliated funds, Gladstone Capital Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission.
[15] Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities.
[16] Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities.
[17] Security is non-income producing.
[18] Refer to Note 10—Commitments and Contingencies in the accompanying Notes to Consolidated Financial Statements for additional information regarding this guaranty.
[19] Refer to Note 10—Commitments and Contingencies in the accompanying Notes to Consolidated Financial Statements for additional information regarding this guaranty.
[20] Fair value was based on internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[21] Fair value was based on internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[22] Our investment in Funko was valued using Level 2 inputs within the ASC 820 fair value hierarchy. Our common units in Funko are convertible into class A common stock in Funko, Inc. upon meeting certain requirements. Fair value was based on the closing market price of shares of Funko, Inc. as of the reporting date, less a discount for lack of marketability. Funko, Inc. is traded on the Nasdaq Global Select Market under the trading symbol “FNKO.” Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[23] Our investment in Funko was valued using Level 2 inputs within the ASC 820 fair value hierarchy. Our common units in Funko are convertible into class A common stock in Funko, Inc. upon meeting certain requirements. Fair value was based on the closing market price of shares of Funko, Inc. as of the reporting date, less a discount for lack of marketability. Funko, Inc. is traded on the Nasdaq Global Select Market under the trading symbol “FNKO.” Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information.
[24] Non-Control/Non-Affiliate investments, as defined by the 1940 Act, are those that are neither Control nor Affiliate investments and in which we own less than 5.0% of the issued and outstanding voting securities.
[25] $5.1 million of the debt security was participated to a third-party, but is accounted for as collateral for a secured borrowing under accounting principles generally accepted in the U.S. and presented as Secured borrowing on our accompanying Consolidated Statements of Assets and Liabilities as of March 31, 2022.
[26] Debt security is on non-accrual status.
[27] Debt security is on non-accrual status.
[28] Non-Control/Non-Affiliate investments, as defined by the 1940 Act, are those that are neither Control nor Affiliate investments and in which we own less than 5.0% of the issued and outstanding voting securities.
[29] Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities.
[30] Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities.