v3.26.3
Agreements and Related Party Transactions - Narrative (Details)
$ in Thousands
 9 Months Ended
May 04, 2026
May 05, 2025
component
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
 [3],[4]
Related Party Transaction [Line Items]        
Investments at fair value:     $ 15,095,927 [1],[2] $ 16,470,893
Equity Commitment To BOSCO        
Related Party Transaction [Line Items]        
Amount of transaction     18,000  
Commitment To BOSCO        
Related Party Transaction [Line Items]        
Amount of transaction     18,000  
Equity Commitment To Owl-HP Finance        
Related Party Transaction [Line Items]        
Amount of transaction     29,000  
Commitment To Owl-HP Finance        
Related Party Transaction [Line Items]        
Amount of transaction     84,500  
Equity Commitment to BOCSO        
Related Party Transaction [Line Items]        
Amount of transaction     97,900  
Commitment To BOCSO        
Related Party Transaction [Line Items]        
Amount of transaction     97,900  
Affiliated entity | Administration Agreement        
Related Party Transaction [Line Items]        
Written notice for contract termination, term 60 days      
Affiliated entity | Investment Advisory Agreement        
Related Party Transaction [Line Items]        
Written notice for contract termination, term   60 days    
Incentive fee components | component   2    
Affiliated entity | Investment Advisory Agreement, Management Fee - Average Gross Assets        
Related Party Transaction [Line Items]        
Base rate   1.50%    
Affiliated entity | Investment Advisory Agreement, Management Fee - Asset Coverage Ratio Threshold        
Related Party Transaction [Line Items]        
Base rate   200.00%    
Affiliated entity | Investment Advisory Agreement, Management Fee - Average Gross Assets Below Asset Coverage Ratio        
Related Party Transaction [Line Items]        
Base rate   1.00%    
Affiliated entity | Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income        
Related Party Transaction [Line Items]        
Incentive rate   100.00%    
Affiliated entity | Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate        
Related Party Transaction [Line Items]        
Incentive rate   1.50%    
Affiliated entity | Investment Advisory Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Threshold        
Related Party Transaction [Line Items]        
Incentive rate   17.50%    
Affiliated entity | Investment Advisory Agreement - Incentive Rate, Quarterly Threshold        
Related Party Transaction [Line Items]        
Incentive rate   1.82%    
Affiliated entity | Investment Management Agreement - Incentive Rate, Realized Capital Gains        
Related Party Transaction [Line Items]        
Incentive rate   17.50%    
Affiliated entity | Commitment To Indirectly Owned Subsidiary        
Related Party Transaction [Line Items]        
Periodic additional commitments     504,600  
Investments at fair value:     606,200  
Affiliated entity | Commitment To Amergin AssetCo        
Related Party Transaction [Line Items]        
Investments at fair value:     275,900  
Amount of transaction     270,500  
Affiliated entity | Equity Commitment To Amergin AssetCo        
Related Party Transaction [Line Items]        
Amount of transaction     91,500  
Affiliated entity | Debt Commitment To Amergin AssetCo        
Related Party Transaction [Line Items]        
Amount of transaction     179,000  
Affiliated entity | Equity Commitment To Fifth Season        
Related Party Transaction [Line Items]        
Amount of transaction     302,300  
Affiliated entity | Equity Commitment To LSI Financing DAC        
Related Party Transaction [Line Items]        
Amount of transaction     5,400  
Affiliated entity | Commitment To LSI Financing DAC        
Related Party Transaction [Line Items]        
Amount of transaction     5,300  
Affiliated entity | Equity Commitment To LSI Financing LLC        
Related Party Transaction [Line Items]        
Amount of transaction     249,700  
Affiliated entity | Commitment To LSI Financing LLC        
Related Party Transaction [Line Items]        
Amount of transaction     $ 289,200  
[1] Certain portfolio company investments are subject to contractual restrictions on sales. Refer to footnote 30 for additional information on the Company’s restricted securities.
[2] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Revolving Credit Facility, SPV Asset Facilities and CLOs. See “Note 5 — Debt.”
[3] Certain portfolio company investments are subject to contractual restrictions on sales. Refer to footnote 30 for additional information on the Company’s restricted securities.
[4] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Revolving Credit Facility, SPV Asset Facilities and CLOs. See “Note 5 — Debt.”