v3.25.4
INVESTMENTS - WHF STRS Ohio Senior Loan Fund LLC (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 26, 2024
Aug. 05, 2024
May 18, 2023
Jan. 13, 2023
USD ($)
Mar. 11, 2022
USD ($)
Jul. 15, 2021
Jul. 31, 2019
Dec. 31, 2025
USD ($)
company
Dec. 31, 2024
USD ($)
company
Dec. 31, 2023
USD ($)
Feb. 28, 2023
USD ($)
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               $ 578,649 $ 642,213              
Cost of investment               607,574 695,240              
Increase in credit facility limit               (150) (24) $ 509            
Available               $ 100,000 173,507              
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%                            
Subordinated Notes                                
Schedule of Investments [Line Items]                                
Investments, fair value               $ 1,286 1,175              
Cost of investment               1,269 1,152              
Equity (excluding STRS JV)                                
Schedule of Investments [Line Items]                                
Investments, fair value               58,535 45,587              
Cost of investment               $ 75,288 $ 63,299              
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               $ 335,887 $ 309,077              
Portfolio companies | company               43 38              
Largest single investment               $ 19,000 $ 19,594              
Five largest investments               75,398 79,058              
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               $ 171,913 $ 144,081              
Effective interest rate (as a percent)               5.94% 6.42%              
STRS JV | STRS JV Credit Facility | Minimum                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent) 2.50%                              
STRS JV | STRS JV Credit Facility | Maximum                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent) 2.25%                              
STRS JV | STRS JV Credit Facility | SOFR                                
Schedule of Investments [Line Items]                                
Variable interest rate (as a percent)     2.72%   2.50%       2.25%              
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               $ 84,416 $ 84,416              
Commitments to fund subordinated notes               92,000 92,000              
Unfunded subordinated notes               7,584 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               21,104 21,104              
Commitments to fund equity interests               23,000 23,000              
Unfunded equity interests               $ 1,896 $ 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