v3.26.1
INVESTMENTS - WHF STRS Ohio Senior Loan Fund LLC (Details)
$ in Thousands
1 Months Ended 6 Months Ended 12 Months Ended
Nov. 26, 2024
May 08, 2024
May 18, 2023
Jan. 13, 2023
USD ($)
Mar. 11, 2022
USD ($)
Jul. 15, 2021
Jul. 31, 2019
Jun. 30, 2026
USD ($)
company
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
company
Feb. 28, 2023
USD ($)
Mar. 10, 2022
USD ($)
Feb. 28, 2022
USD ($)
Jan. 27, 2021
USD ($)
Jul. 19, 2019
USD ($)
Jan. 14, 2019
USD ($)
Schedule of Investments [Line Items]                                
Investments, fair value               $ 569,202   $ 578,649            
Cost of investment               594,296   607,574            
Increase in credit facility limit               58 $ (132)              
Available               $ 50,000   100,000            
Minimum                                
Schedule of Investments [Line Items]                                
Term of interest               3 years                
Maximum                                
Schedule of Investments [Line Items]                                
Term of interest               6 years                
SOFR | Minimum                                
Schedule of Investments [Line Items]                                
Term of interest             3 years                  
SOFR | Maximum                                
Schedule of Investments [Line Items]                                
Term of interest             6 years                  
State Teachers Retirement System Joint Venture Credit Facility, EUR, GBP and USD Denominated Borrowings | Base Rate                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent)   2.50%                            
State Teachers Retirement System Joint Venture Credit Facility, CAD Denominated Borrowings | Base Rate                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent)   2.82%                            
Debt Investments                                
Schedule of Investments [Line Items]                                
Investments, fair value               $ 506,279   520,114            
Cost of investment               518,411   532,286            
Subordinated Notes                                
Schedule of Investments [Line Items]                                
Investments, fair value               1,345   1,286            
Cost of investment               1,331   1,269            
Equity (excluding STRS JV)                                
Schedule of Investments [Line Items]                                
Investments, fair value               62,923   58,535            
Cost of investment               $ 75,885   $ 75,288            
STRS JV                                
Schedule of Investments [Line Items]                                
Combined investment commitment in joint venture                               $ 125,000
Investment commitment in joint venture                     $ 115,000   $ 100,000     75,000
Increase in investment commitment in joint venture                     $ 15,000   $ 25,000      
Economic ownership (as a percent)               65.71%   34.29% 65.71%   66.67%      
Investments, fair value               $ 350,340   $ 335,887            
Portfolio companies | company               43   43            
Largest single investment               $ 18,330   $ 19,000            
Five largest investments               75,539   75,398            
STRS JV | STRS JV Credit Facility                                
Schedule of Investments [Line Items]                                
Maximum borrowing limit       $ 262,500 $ 225,000     $ 262,500   262,500       $ 175,000 $ 125,000  
Increase in credit facility limit       37,500                        
Variable interest rate (as a percent)           2.35%   2.25%                
Available         168,750             $ 131,250        
Borrowings greater than         $ 175,000                      
Amortized Cost, credit facility               $ 182,308   $ 171,913            
Effective interest rate (as a percent)               5.81%   5.94%            
STRS JV | STRS JV Credit Facility | Minimum                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent) 0.025%                              
STRS JV | STRS JV Credit Facility | Maximum                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent) 0.0225%                              
STRS JV | STRS JV Credit Facility | SOFR                                
Schedule of Investments [Line Items]                                
Maximum borrowing limit       $ 175,000                        
Variable interest rate (as a percent)     2.72%   2.50%         0.0225%            
Effective interest rate (as a percent)       2.71%                        
STRS JV | STRS JV Credit Facility | SOFR | Borrowings under $37.5 million                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent)       3.00%                        
STRS JV | Subordinated Notes                                
Schedule of Investments [Line Items]                                
Investment commitment in joint venture                     $ 92,000   $ 80,000      
Cost of investment               $ 86,256   $ 84,416            
Commitments to fund subordinated notes               92,000   92,000            
Unfunded subordinated notes               5,744   7,584            
STRS JV | Equity (excluding STRS JV)                                
Schedule of Investments [Line Items]                                
Investment commitment in joint venture                     23,000   $ 20,000      
Cost of investment               21,564   21,104            
Commitments to fund equity interests               23,000   23,000            
Unfunded equity interests               $ 1,436   $ 1,896            
STRS JV | STRS Ohio                                
Schedule of Investments [Line Items]                                
Investment commitment in joint venture                     60,000         $ 50,000
Increase in investment commitment in joint venture                     $ 10,000          
Economic ownership (as a percent)                     34.29%   33.33%      
STRS JV | STRS Ohio | Subordinated Notes                                
Schedule of Investments [Line Items]                                
Investment commitment in joint venture                     $ 48,000          
STRS JV | STRS Ohio | Equity (excluding STRS JV)                                
Schedule of Investments [Line Items]                                
Investment commitment in joint venture                     $ 12,000