v3.26.1
CONSOLIDATED SCHEDULE OF INVESTMENTS (Parenthetical) 3
$ in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Dec. 31, 2025
Jun. 30, 2026
USD ($)
director
Jun. 30, 2025
USD ($)
director
Jun. 30, 2026
CAD ($)
director
Jun. 30, 2025
CAD ($)
director
Dec. 10, 2018
director
Schedule of Investments [Line Items]            
Fair Value   $ 6,342,558 [1] $ 6,673,516 [2]      
Residual Profit, New TLA and TLD   8.33% 8.33% 8.33% 8.33%  
Investment, basis spread, variable rate, TLA and TLD   4.00% 4.00% 4.00% 4.00%  
Universal Turbine Parts, LLC            
Schedule of Investments [Line Items]            
Number of board of directors appointed | director   3 3 3 3 3
First Tower Finance Company LLC            
Schedule of Investments [Line Items]            
Ownership interest   78.06%        
First Tower Finance Company LLC | First Tower Holdings of Delaware LLC            
Schedule of Investments [Line Items]            
Ownership interest 80.10% 80.10%        
Fully diluted ownership interest 78.06% 78.06%        
First Tower, LLC | First Tower Finance Company LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Vessel Company, LLC | Freedom Marine Solutions, LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Vessel Company III, LLC | Freedom Marine Solutions, LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Vessel Company II, LLC | Freedom Marine Solutions, LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
MITY, Inc. | MITY Holdings of Delaware Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Broda Enterprises ULC            
Schedule of Investments [Line Items]            
Fair Value       $ 7,371 $ 7,371  
Broda Enterprises ULC | MITY, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
MITY-Lite, Inc. | MITY, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Broda USA, Inc. | MITY, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
NPH Property Holdings, LLC            
Schedule of Investments [Line Items]            
Ownership interest   100.00%        
National Property REIT Corp. | NPH Property Holdings, LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Nationwide Loan Company LLC | Nationwide Loan Company LLC            
Schedule of Investments [Line Items]            
Ownership interest 94.22% 94.22%        
NMMB, Inc. | NMMB Holdings, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 92.77% 92.77% 92.77%      
NMMB, Inc. | Refuel Agency, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00% 100.00%      
Armed Forces Communications, Inc. | NMMB, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Valley Electric Holdings II, Inc. | Valley Electric Holdings I, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Valley Electric Company, Inc. | Valley Electric Holdings II, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 94.99% 94.99%        
VE Company, Inc. | Valley Electric Company, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Valley Electric Co. of Mt. Vernon, Inc. | VE Company, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | First Tower Holdings of Delaware LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | Energy Solutions Holdings Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | MITY Holdings of Delaware Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | MITY FSC, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | NPH Property Holdings, LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | Nationwide Loan Company LLC            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | NMMB Holdings, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | Strategic Chemical Solutions Corp            
Schedule of Investments [Line Items]            
Ownership interest   99.96%        
Subsidiaries | Reportable Legal Entities | USES Corp.            
Schedule of Investments [Line Items]            
Ownership interest 99.96%          
Subsidiaries | Reportable Legal Entities | Valley Electric Holdings I, Inc.            
Schedule of Investments [Line Items]            
Ownership interest 100.00% 100.00%        
Subsidiaries | Reportable Legal Entities | Encinitas Watches Holdco, LLC            
Schedule of Investments [Line Items]            
Ownership interest 8.57% 8.57%        
Subsidiaries | Reportable Legal Entities | Pacific World Corporation            
Schedule of Investments [Line Items]            
Ownership interest 99.99% 99.99%        
Preferred equity ownership interest 100.00% 100.00%        
[1] Fair value is determined by or under the direction of our Board of Directors. Unless otherwise indicated by endnote 42 below, all of our investments are valued using significant unobservable inputs. In accordance with ASC 820, such investments are classified as Level 3 within the fair value hierarchy. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.
[2] Fair value is determined by or under the direction of our Board of Directors. Unless otherwise indicated by endnote 42 below, all of our investments are valued using significant unobservable inputs. In accordance with ASC 820, such investments are classified as Level 3 within the fair value hierarchy. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.