v3.26.3
Investments - Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets (Details) - Level 3 [Member]
$ in Thousands
Aug. 31, 2026
USD ($)
Feb. 28, 2026
USD ($)
Aug. 31, 2025
USD ($)
Feb. 28, 2025
USD ($)
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 1,083,951 $ 1,061,187 $ 952,744 $ 974,997
First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value 939,036 910,991 839,483 867,867
Second lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value 43,416 42,707 6,826 6,388
Unsecured Debt [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value 15,469 16,130 16,790 16,534
Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value 8,324 8,422 13,684 14,771
Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value 77,706 82,937 $ 75,961 $ 69,437
Valuation, Market Approach [Member] | Measurement Input, Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 939,036 $ 910,991    
Valuation Technique Market Comparables Market Comparables    
Unobservable Input Market Yield (%) Market Yield (%)    
Valuation, Market Approach [Member] | Measurement Input, Market Yield [Member] | Second lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 43,416 $ 42,707    
Valuation Technique Market Comparables Market Comparables    
Unobservable Input Market Yield (%) Market Yield (%)    
Valuation, Market Approach [Member] | Measurement Input, Market Yield [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 77,706 $ 82,937    
Valuation Technique Market Comparables Market Comparables    
Unobservable Input Market Yield (%) Market Yield (%)    
Range 22.8 13.5    
Valuation, Market Approach [Member] | Measurement Input, Revenue Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input Revenue Multiples (x)      
Valuation, Market Approach [Member] | Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input Third-party Bid (x)      
Range 3.7      
Valuation, Market Approach [Member] | Measurement Input, EBITDA Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input   EBITDA Multiples (x)    
Range   12.1    
Valuation, Market Approach [Member] | Minimum [Member] | Measurement Input, Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 8.3 8.3    
Valuation, Market Approach [Member] | Minimum [Member] | Measurement Input, Market Yield [Member] | Second lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 11 11.1    
Valuation, Market Approach [Member] | Minimum [Member] | Measurement Input, Revenue Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 0      
Valuation, Market Approach [Member] | Maximum [Member] | Measurement Input, Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 25.2 30.9    
Valuation, Market Approach [Member] | Maximum [Member] | Measurement Input, Market Yield [Member] | Second lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 20.1 16.9    
Valuation, Market Approach [Member] | Maximum [Member] | Measurement Input, Revenue Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 1.1      
Valuation, Market Approach [Member] | Weighted Average [Member] | Measurement Input, Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 11.2% [1] 11.1%    
Valuation, Market Approach [Member] | Weighted Average [Member] | Measurement Input, Market Yield [Member] | Second lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 12.7% [1] 12.2%    
Valuation, Market Approach [Member] | Weighted Average [Member] | Measurement Input, Market Yield [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 0.1% [1] 0.1%    
Valuation, Market Approach [Member] | Weighted Average [Member] | Measurement Input, Revenue Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average [1] 1.1      
Valuation, Market Approach [Member] | Weighted Average [Member] | Market Yield [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average [1] 3.7      
Valuation, Market Approach [Member] | Weighted Average [Member] | Measurement Input, EBITDA Multiple [Member] | First lien term loans [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average   12.1    
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Unsecured Debt [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 15,469 $ 16,130    
Valuation Technique Discounted Cash Flow Discounted Cash Flow    
Unobservable Input Discount Rate (%) Discount Rate (%)    
Range 10.8 10    
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Fair Value $ 8,324 $ 8,422    
Valuation Technique Discounted Cash Flow Discounted Cash Flow    
Unobservable Input Discount Rate (%) Discount Rate (%)    
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input Recovery Rate (%) Recovery Rate (%)    
Range 70 70    
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input Prepayment Rate (%) Prepayment Rate (%)    
Range 20 20    
Valuation Technique, Discounted Cash Flow [Member] | Minimum [Member] | Measurement Input, Discount Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 9 8.5    
Valuation Technique, Discounted Cash Flow [Member] | Maximum [Member] | Measurement Input, Discount Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 70 70    
Valuation Technique, Discounted Cash Flow [Member] | Weighted Average [Member] | Measurement Input, Discount Rate [Member] | Unsecured Debt [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 10.8% [1] 10.0%    
Valuation Technique, Discounted Cash Flow [Member] | Weighted Average [Member] | Measurement Input, Discount Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 11.1% [1] 10.9%    
Valuation Technique, Discounted Cash Flow [Member] | Weighted Average [Member] | Measurement Input, Recovery Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 70.0% [1] 70.0%    
Valuation Technique, Discounted Cash Flow [Member] | Weighted Average [Member] | Measurement Input, Prepayment Rate [Member] | Structured Finance [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 20.0% [1] 20.0%    
Enterprise Value Waterfall [Member] | Measurement Input, Revenue Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Valuation Technique Enterprise Value Waterfall Enterprise Value Waterfall    
Unobservable Input Revenue Multiples (x) Revenue Multiples (x)    
Enterprise Value Waterfall [Member] | Minimum [Member] | Measurement Input, Revenue Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 0 0.1    
Enterprise Value Waterfall [Member] | Maximum [Member] | Measurement Input, Revenue Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 7.7 8.2    
Enterprise Value Waterfall [Member] | Weighted Average [Member] | Measurement Input, Revenue Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 5.1 [1] 6.0    
Black-Scholes Modeling [Member] | Measurement Input, Price Volatility [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Valuation Technique Black-Scholes Modeling Black-Scholes Modeling    
Unobservable Input Volatility (%) Volatility (%)    
Range 40 38.7    
Black-Scholes Modeling [Member] | Measurement Input, EBITDA Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Unobservable Input EBITDA Multiples (x) EBITDA Multiple (x)    
Black-Scholes Modeling [Member] | Minimum [Member] | Measurement Input, EBITDA Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 4.8 0.5    
Black-Scholes Modeling [Member] | Maximum [Member] | Measurement Input, EBITDA Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Range 29.6 20    
Black-Scholes Modeling [Member] | Weighted Average [Member] | Measurement Input, Price Volatility [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 40.0% [1] 38.7%    
Black-Scholes Modeling [Member] | Weighted Average [Member] | Measurement Input, EBITDA Multiple [Member] | Equity Securities [Member]        
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value Measurements of Assets [Line Items]        
Weighted Average 9.5 [1] 9.4    
[1] The weighted average in the table above is calculated based on each investment’s fair value weighting, using the applicable unobservable input.