v3.26.1
Fair Value of Financial Instruments - Schedule of Summarized Financial Information For SLF (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
ASSETS                
Investments, at fair value (amortized cost of $717,633 and $733,390, respectively) $ 4,079,384 [1],[2],[3]       $ 4,079,384 [1],[2],[3]   $ 4,071,008 [4],[5],[6]  
Amortized cost 4,177,726 [1],[2],[3]       4,177,726 [1],[2],[3]   4,178,354 [4],[5],[6]  
Total assets 4,170,384       4,170,384   4,247,887  
LIABILITIES                
Deferred financing costs 16,280       16,280   14,922  
Secured borrowings 0       0   0  
Other liabilities 6,145       6,145   1,292  
Total liabilities 2,301,980       2,301,980   2,330,383  
MEMBERS’ CAPITAL                
Total members’ capital 1,790,961 $ 1,831,650 $ 1,852,747 $ 1,898,833 1,790,961 $ 1,852,747 1,840,070 $ 1,910,377
Total liabilities, redeemable convertible preferred stock, and net assets attributable to common stock 4,170,384       4,170,384   4,247,887  
Investment income:                
Total investment income 96,412   103,415   194,627 210,932    
Operating expenses:                
Interest and credit facility financing expenses 36,398   34,889   70,964 68,741    
Total expenses 62,644   62,740   124,166 124,978    
Net investment income 33,233 $ 36,549 39,580 $ 44,924 69,782 84,504    
FBLC Senior Loan Fund, LLC                
ASSETS                
Investments, at fair value (amortized cost of $717,633 and $733,390, respectively) 679,825       679,825   704,292  
Amortized cost 717,633       717,633   733,390  
Cash and other assets 41,647       41,647   47,224  
Total assets 721,472       721,472   751,516  
LIABILITIES                
Revolving credit facilities (net of deferred financing costs of $1,107 and $1,445, respectively) 441,393       441,393   450,555  
Deferred financing costs 1,107       1,107   1,445  
Secured borrowings 461       461   599  
Other liabilities 23,678       23,678   22,715  
Total liabilities 465,532       465,532   473,869  
MEMBERS’ CAPITAL                
Total members’ capital 255,940       255,940   277,647  
Total liabilities, redeemable convertible preferred stock, and net assets attributable to common stock 721,472       721,472   $ 751,516  
Investment income:                
Total investment income 13,193   20,787   27,343 43,584    
Operating expenses:                
Interest and credit facility financing expenses 6,558   8,949   13,208 18,047    
Other expenses 541   604   1,167 1,214    
Total expenses 7,099   9,553   14,375 19,261    
Net investment income 6,094   11,234   12,968 24,323    
Realized and unrealized gain (loss) on investments and extinguishment of debt:                
Net realized and unrealized gain (loss) on investments and extinguishment of debt (2,923)   (1,145)   (22,023) (13,011)    
Net increase (decrease) in members’ capital resulting from operations $ 3,171   $ 10,089   $ (9,055) $ 11,312    
[1] Percentages are based on net assets attributable to common stock as of June 30, 2026.
[2] Unless otherwise indicated, all investments in the consolidated schedules of investments are non-affiliated, non-controlled investments.
[3] Unless otherwise indicated, all of the Company's investments or a portion thereof are pledged as collateral under the JPM Revolver Facility.
[4] Percentages are based on net assets attributable to common stock as of December 31, 2025.
[5] Unless otherwise indicated, all investments in the consolidated schedules of investments are non-affiliated, non-controlled investments.
[6] Unless otherwise indicated, all of the Company's investments or a portion thereof are pledged as collateral under the JPM Revolver Facility (as defined below).