v3.26.3
Investments - Schedule of Reconciliation of the Beginning and Ending Balances for Investments (Details) - Level 3 [Member] - USD ($)
$ in Thousands
 6 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Schedule of Investments [Line Items]    
Beginning balance $ 1,061,187 $ 974,997
Payment-in-kind and other adjustments to cost 1,389 1,062
Net accretion of discount on investments 1,301 1,164
Net change in unrealized appreciation (depreciation) on investments (34,488) 4,435
Purchases 135,091 63,075
Sales and repayments (82,642) (94,943)
Net realized gain (loss) from investments 2,113 2,954
Ending balance 1,083,951 952,744
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period (33,998) 6,198
First lien term loans [Member]    
Schedule of Investments [Line Items]    
Beginning balance 910,991 867,867
Payment-in-kind and other adjustments to cost 753 974
Net accretion of discount on investments 1,256 1,158
Net change in unrealized appreciation (depreciation) on investments (25,677) 1,600
Purchases 127,526 59,468
Sales and repayments (75,813) (91,584)
Net realized gain (loss) from investments
Ending balance 939,036 839,483
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period (25,970) 1,821
Second lien term loans [Member]    
Schedule of Investments [Line Items]    
Beginning balance 42,707 6,388
Payment-in-kind and other adjustments to cost 636 548
Net accretion of discount on investments 45 6
Net change in unrealized appreciation (depreciation) on investments 28 (116)
Purchases
Sales and repayments
Net realized gain (loss) from investments
Ending balance 43,416 6,826
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period 28 (116)
Unsecured term loans [Member]    
Schedule of Investments [Line Items]    
Beginning balance 16,130 16,534
Payment-in-kind and other adjustments to cost
Net accretion of discount on investments
Net change in unrealized appreciation (depreciation) on investments (661) 256
Purchases
Sales and repayments
Net realized gain (loss) from investments
Ending balance 15,469 16,790
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period (661) 258
Structured finance securities [Member]    
Schedule of Investments [Line Items]    
Beginning balance 8,422 14,771
Payment-in-kind and other adjustments to cost (460)
Net accretion of discount on investments
Net change in unrealized appreciation (depreciation) on investments (98) (627)
Purchases
Sales and repayments
Net realized gain (loss) from investments
Ending balance 8,324 13,684
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period 138 (194)
Equity interests [Member]    
Schedule of Investments [Line Items]    
Beginning balance 82,937 69,437
Payment-in-kind and other adjustments to cost
Net accretion of discount on investments
Net change in unrealized appreciation (depreciation) on investments (8,080) 3,322
Purchases 7,565 3,607
Sales and repayments (6,829) (3,359)
Net realized gain (loss) from investments 2,113 2,954
Ending balance 77,706 75,961
Net change in unrealized appreciation (depreciation) for the period relating to those Level 3 assets that were still held by the Company at the end of the period $ (7,533) $ 4,429