v3.26.1
Borrowings - Revolving Credit Facility (Details)
€ in Thousands, £ in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Nov. 25, 2025
USD ($)
Nov. 24, 2025
Oct. 20, 2023
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
AUD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2025
AUD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
AUD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2025
AUD ($)
Jun. 30, 2026
AUD ($)
Jun. 30, 2026
GBP (£)
Jun. 30, 2026
EUR (€)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
AUD ($)
Dec. 31, 2025
GBP (£)
Dec. 31, 2025
EUR (€)
Line of Credit Facility [Line Items]                                    
Debt       $ 3,453,989,000       $ 3,453,989,000             $ 3,224,163,000      
Unrealized gain (loss) on foreign currency and other transactions       963,000   $ (7,269,000)   1,548,000   $ (10,026,000)                
Net assets       2,709,662,000   $ 2,546,266,000   2,709,662,000   $ 2,546,266,000                
Revolving Credit Agreement | Revolving Credit Facility                                    
Line of Credit Facility [Line Items]                                    
Maximum borrowing capacity     $ 295,000,000 845,000,000       845,000,000                    
Accordion feature, total facility amount     $ 800,000,000                              
Debt       $ 262,500,000       $ 262,500,000             $ 521,800,000      
Unrealized gain (loss) on foreign currency and other transactions         $ 966   $ (7,287)   $ 1,571   $ (10,047)              
Weighted average interest rate       5.60%       5.60%       5.60% 5.60% 5.60% 5.80% 5.80% 5.80% 5.80%
Revolving credit facility maximum borrowing capacity percentage     72.50%                              
Net assets     $ 500,000,000                              
Amount equal to net assets     $ 1,063,400,000                              
Percentage equal to net assets     65.00%                              
Ratio of total assets to total liabilities     1.5                              
Senior debt coverage ratio     2                              
Minimum net worth equal required     $ 600,000,000                              
Distributions in cash or property other than common stock percentage     1.15                              
Revolving Credit Agreement | Revolving Credit Facility | Interest rate in case of any U.S. dollar advances | Alternate base rate                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 1.00%                                  
Revolving Credit Agreement | Revolving Credit Facility | Interest rate in case of any U.S. dollar advances | Adjusted Term SOFR                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 2.00%                                  
Revolving Credit Agreement | Revolving Credit Facility | Interest rate in case of any U.S. dollar advances | Applicable benchmark rate                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 2.00%                                  
Revolving Credit Agreement | Revolving Credit Facility | Interest rate in case of any U.S. dollar advances | Daily Simple RFR                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 2.00%                                  
Revolving Credit Agreement | Revolving Credit Facility With Australian Dollar Denominated Borrowings                                    
Line of Credit Facility [Line Items]                                    
Debt       $ 27,677,000       $ 27,677,000       $ 40,000     $ 26,694,000 $ 40,000    
Revolving Credit Agreement | Revolving Credit Facility With British Pound Denominated Borrowings                                    
Line of Credit Facility [Line Items]                                    
Debt       35,808,000       35,808,000         £ 27,000   53,902,000   £ 40,000  
Revolving Credit Agreement | Revolving Credit Facility With Euros Denominated Borrowings                                    
Line of Credit Facility [Line Items]                                    
Debt       $ 31,380,000       $ 31,380,000           € 27,472 $ 32,270,000     € 27,472
Fourth Credit Facility Amendment | Revolving Credit Facility                                    
Line of Credit Facility [Line Items]                                    
Maximum borrowing capacity $ 845,000,000                                  
Accordion feature, total facility amount $ 1,100,000,000                                  
Fourth Credit Facility Amendment | Revolving Credit Facility | When The Outstanding Borrowings Are Less Than Or Equal To 35% Of The Facility                                    
Line of Credit Facility [Line Items]                                    
Commitment fee (in percent) 0.50%                                  
Outstanding borrowings as a percentage of facility amount considered for payment of commitment fee 35.00%                                  
Fourth Credit Facility Amendment | Revolving Credit Facility | When The Outstanding Borrowings Are Greater Than 35% Of The Facility                                    
Line of Credit Facility [Line Items]                                    
Commitment fee (in percent) 0.375%                                  
Outstanding borrowings as a percentage of facility amount considered for payment of commitment fee 35.00%                                  
Fourth Credit Facility Amendment | Revolving Credit Facility | Alternate base rate                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 1.00% 1.25%                                
Fourth Credit Facility Amendment | Revolving Credit Facility | SOFR, CORRA , Eurocurrency, And RFR Rates                                    
Line of Credit Facility [Line Items]                                    
Interest rate, basis spread 2.00% 2.25%