Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS - Fair Value Measurement Inputs and Valuation Techniques (Details)

v3.22.4
INVESTMENTS - Fair Value Measurement Inputs and Valuation Techniques (Details)
$ in Thousands
Dec. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 760,463 $ 714,396 [1]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Common Stock Warrants    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [2],[3],[4]   921
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 2,800 [5],[6] 2,800 [3],[4],[7]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [2],[3],[4]   14,746
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[4],[7]   14,000
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Common Stock Warrants    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[6],[8],[9] 0  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[6] 14,000  
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.– Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[6],[9] 2,653  
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [2],[3]   17,150
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3]   48,000
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 35,255 [5],[9] 21,485 [2],[3]
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 17,700 [5] 17,700 [3]
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 6,850 [5] 6,850 [3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 27,539 [5],[9] 25,374 [2],[3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 21,100 [5] 21,100 [3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 6,400 [5] 6,400 [3]
Investment, Identifier [Axis]: Country Club Enterprises, LLC - Guaranty    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [10]   0
Investment, Identifier [Axis]: Country Club Enterprises, LLC – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [11]   1,498
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc - Preferred Equity    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[9] 24,877  
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5] 38,250  
Investment, Identifier [Axis]: Diligent Delivery Systems – Common Stock Warrants    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 2,249 [5],[9] 1,533 [2],[3]
Investment, Identifier [Axis]: Diligent Delivery Systems – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 13,016 [12] 13,000 [11]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[6],[9] 0 [2],[3],[4],[7]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [4],[11]   9,072
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.– Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[6],[13] 3,677  
Investment, Identifier [Axis]: Educators Resource, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 17,638 [5],[9] 19,252 [2],[3]
Investment, Identifier [Axis]: Educators Resource, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 20,000 [5] 20,000 [3]
Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC – Common Units    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 31 [6],[9],[14] 74 [2],[4],[15],[16]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 5,610 [5] 6,500 [3]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 15,281 [5] 18,796 [3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 3,263 [2],[3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,200 [5] 13,300 [4],[17]
Investment, Identifier [Axis]: Gladstone SOG Investments, Inc. - Common Stock(    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[9] 713  
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 13,188 [5],[9] 17,807 [2],[3]
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 57,700 [5] 27,700 [3]
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 13,131 [5],[9] 16,405 [2],[3],[7]
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 22,000 [5] 22,000 [3],[7]
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Guaranty    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [7],[10]   0
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 10,556 [5],[13] 15,023 [3],[7],[18]
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   23,672
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   2,219
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Line of Credit    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 3,199  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 16,634  
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 1,560  
Investment, Identifier [Axis]: J.R. Hobbs Co. – Atlanta, LLC – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3],[7]
Investment, Identifier [Axis]: Mason West, LLC – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 10,896 [5],[9] 7,553 [2],[3]
Investment, Identifier [Axis]: Mason West, LLC – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 25,250 [5] 25,250 [3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Line of Credit    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 2,000 [5] 0 [3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 14,858 [5],[9] 10,223 [2],[3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 42,450 [5] 27,700 [3]
Investment, Identifier [Axis]: Nth Degree Investment Group, LLC – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,036 [5],[9] 511 [2],[3]
Investment, Identifier [Axis]: Old World Christmas, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 35,028 [5],[9] 37,842 [2],[3],[7]
Investment, Identifier [Axis]: Old World Christmas, Inc. – Secured First Lien Term Loan    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 40,500 [5] 25,000 [3],[7]
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [2],[3],[7]   0
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock(    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[9] 0  
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 26,618 [5] 26,618 [3]
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [12] 2,423  
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit,    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [11]   1,920
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3]
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 3,040 [12] 3,072 [11]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3],[16]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 2,465 [5],[9] 0 [2],[3]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 3,128 [5] 2,909 [11],[18]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,516 [5] 10,914 [11],[18]
Investment, Identifier [Axis]: Schylling, Inc. – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 19,452 [5],[9] 17,820 [2],[3]
Investment, Identifier [Axis]: Schylling, Inc. – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 27,981 [5] 27,981 [3]
Investment, Identifier [Axis]: The Maids International, LLC – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 2,679 [2],[3],[7]
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7]   28,560
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5] 28,560  
Investment, Identifier [Axis]: The Mountain Corporation 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   3,400
Investment, Identifier [Axis]: The Mountain Corporation 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   800
Investment, Identifier [Axis]: The Mountain Corporation – Common Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 0 [5],[9] 0 [2],[3]
Investment, Identifier [Axis]: The Mountain Corporation – Delayed Draw Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   118
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 2,411  
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 0  
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [2],[3]   0
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock(    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[9] 0  
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7],[18]   923
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5],[13] 0  
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd. - Preferred Stock    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 4,794 [5],[9] 6,000 [2],[3],[7]
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7]   18,250
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 1    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [3],[7]   0
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value [5] 18,250  
Significant Unobservable Inputs (Level 3)    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 760,432 714,322
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Secured First Lien Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 442,028 411,023
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Secured Second Lien Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 63,153 39,637
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Preferred Equity    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 221,774 217,599
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Common Equity/ Equivalents    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 14,998 $ 3,678
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured First Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 3.1 3.4
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured First Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 7.9 9.3
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured First Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 6.2 7.0
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured Second Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 5.6 5.6
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured Second Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 7.8 6.8
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Secured Second Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 6.7 6.0
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Preferred Equity | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 3.1 3.4
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Preferred Equity | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 7.9 9.3
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Preferred Equity | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 5.9 6.8
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Common Equity/ Equivalents | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 4.3 4.8
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Common Equity/ Equivalents | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 7.8 8.4
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA multiple | Common Equity/ Equivalents | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 7.2 5.8
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured First Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 3,973 $ 3,990
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured First Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 18,548 13,707
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured First Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 10,962 8,221
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured Second Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 3,221 3,953
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured Second Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 6,669 5,488
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Secured Second Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 5,113 4,959
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Preferred Equity | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 3,973 1,210
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Preferred Equity | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 18,548 13,707
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Preferred Equity | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 9,640 6,926
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Common Equity/ Equivalents | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 969 829
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Common Equity/ Equivalents | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 27,118 13,707
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | EBITDA | Common Equity/ Equivalents | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 5,302 $ 5,709
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured First Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.3 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured First Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.6 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured First Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.3 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured Second Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured Second Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Secured Second Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Preferred Equity | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.3 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Preferred Equity | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.6 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Preferred Equity | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.4 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Common Equity/ Equivalents | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Common Equity/ Equivalents | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue multiple | Common Equity/ Equivalents | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.5 0.7
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured First Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 12,461 $ 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured First Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 107,907 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured First Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 88,029 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured Second Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured Second Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Secured Second Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Preferred Equity | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Preferred Equity | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 107,907 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Preferred Equity | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 53,486 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Common Equity/ Equivalents | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Common Equity/ Equivalents | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Total Enterprise Value | Revenue | Common Equity/ Equivalents | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,461 14,072
Significant Unobservable Inputs (Level 3) | Yield Analysis | Secured First Lien Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 5,463 14,064
Significant Unobservable Inputs (Level 3) | Yield Analysis | Secured Second Lien Debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 13,016 $ 28,321
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured First Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.151 0.113
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured First Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.189 0.152
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured First Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.172 0.146
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured Second Lien Debt | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.133 0.100
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured Second Lien Debt | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.133 0.122
Significant Unobservable Inputs (Level 3) | Yield Analysis | Discount Rate | Secured Second Lien Debt | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair value, measurement input 0.133 0.116
[1] 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.
[2] .
[3] 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.
[4] 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.
[5] 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.
[6] 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.
[7] 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.
[8] 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.
[9] non-income producing.
[10] Refer to Note 10—Commitments and Contingencies in the accompanying Notes to Consolidated Financial Statements for additional information regarding this guaranty.
[11] 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.
[12] 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.
[13] Debt security is on non-accrual status.
[14] 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.
[15] 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.
[16] 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.
[17] $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.
[18] Debt security is on non-accrual status.