v3.26.1
Acquisition of SWK Holdings Corporation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 06, 2026
Apr. 02, 2026
Jun. 30, 2026
Jun. 30, 2026
Mar. 24, 2021
Mar. 31, 2026
Dec. 31, 2025
Oct. 09, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2020
Business Combination [Line Items]                        
Common stock, par value     $ 0.01 $ 0.01     $ 0.01          
Conversion of common stock effective merger 1.7264                      
Common stock, shares outstanding     42,215,377 42,215,377     36,134,037          
Asset acquisition consideration transferred [1]       $ 196,025                
Asset acquisition, consideration in share value [1]       $ 43,617                
Percentage of net assets     237.24% [2] 237.24% [2]     191.23% [3],[4]          
Common Stock/Units                        
Business Combination [Line Items]                        
Issuance of common stock, shares     6,330,509 6,330,509                
Common stock, shares outstanding     42,215,377 42,215,377   36,134,037 36,134,037   36,532,020 37,347,428 37,347,428  
Runway Growth Holdings LLC                        
Business Combination [Line Items]                        
Issuance of common stock, shares         22,564              
Asset acquisition consideration transferred $ 9,000                      
Net asset value per share         $ 15             $ 15
Deemed capital contribution payment made by adviser 9,000                      
Merger Agreement                        
Business Combination [Line Items]                        
Asset acquisition consideration transferred 249,000                      
Asset acquisition, investment purchase discount 14,400                      
Asset acquisition, consideration in share value 75,500                      
Asset acquisition, cash consideration $ 173,500                      
Key Stockholder Agreement                        
Business Combination [Line Items]                        
Common stock, shares outstanding               3,885,000        
Key Stockholder Agreement | Common Stock/Units                        
Business Combination [Line Items]                        
Merger agreement common stock shares outstandingp percentage.               9.20%        
Key Stockholder Agreement | Common Stock/Units | Minimum                        
Business Combination [Line Items]                        
Percentage of beneficially owning company outstanding     10.00% 10.00%                
Key Stockholder Agreement | Common Stock/Units | Maximum                        
Business Combination [Line Items]                        
Percentage of beneficially owning company outstanding     3.00% 3.00%                
SWK Acquisition                        
Business Combination [Line Items]                        
Common stock, par value $ 0.01                      
Issuance of common stock, shares 6,330,509                      
Fair value of shares measured at acquisition date   $ 43,600                    
Market Price Per Share   $ 6.89                    
Deemed capital contribution payment made by adviser   $ 9,000                    
SWK Acquisition | Merger Agreement                        
Business Combination [Line Items]                        
Net asset value per share $ 11.93                      
SWK Common Stock                        
Business Combination [Line Items]                        
Common stock, par value 0.001                      
SWK Common Stock | Merger Agreement                        
Business Combination [Line Items]                        
Common stock, par value 0.01                      
Common stock converted into the right to receive per share for cash 20.59                      
Pro rata share of the guaranteed cash payment paid by the adviser $ 0.74                      
Asset acquisition consideration transferred $ 258,000                      
SWK Common Stock | SWK Acquisition                        
Business Combination [Line Items]                        
Issuance of common stock, shares 6,330,509                      
SWK Common Stock | SWK Acquisition | Merger Agreement                        
Business Combination [Line Items]                        
Issuance of common stock, shares 6,330,509                      
Class Of Voting Securities | Key Stockholder Agreement | Common Stock/Units | Maximum                        
Business Combination [Line Items]                        
Percentage of beneficially owning company outstanding     3.00% 3.00%                
[1] On April 6, 2026, the Company completed the acquisition of SWK Holdings Corporation. For more information, refer to "Note 13 – Acquisition of SWK Holdings Corporation" for additional information on the acquisition and the relevant accounting for the transaction.
[2]

Fair value as a percentage of net assets.
[3]

Fair value as a percentage of net assets.
[4] The Company reclassified certain industry groupings of its portfolio companies presented in the consolidated financial statements as of December 31, 2025, to align with Global Industry Classification Standards (“GICS”), where applicable