Investments (Details) - Schedule of valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements of assets - USD ($) $ in Thousands		12 Months Ended
		Feb. 28, 2023	Feb. 28, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 959,483	$ 805,551
First lien term loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 798,534	$ 631,572
Valuation Technique		Market Comparables	Market Comparables
Unobservable Input		Market Yield (%)	Market Yield (%)
Range		10.5% - 23.1%	6.0% - 11.3%
Weighted Average	[1]	12.8%	8.4%
First lien term loans 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input		Revenue Multiples (x)	Revenue Multiples (x)
Range		4.1x	3.5x
Weighted Average	[1]	4.1x	3.5x
First lien term loans 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input		EBITDA Multiples (x)
Range		8.0x
Weighted Average	[1]	8.0x
Second lien term loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 14,936	$ 44,386
Valuation Technique		Market Comparables	Market Comparables
Unobservable Input		Market Yield (%)	Market Yield (%)
Range		15.6% - 61.8%	8.9% - 32.9%
Weighted Average	[1]	45.8%	15.6%
Unsecured term loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 20,661
Valuation Technique		Market Comparables
Unobservable Input		Market Yield (%)
Range		10.0% - 28.8%
Weighted Average	[1]	12.6%
Unsecured term loans 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Technique		Market Comparables
Unobservable Input		Market Quote (%)
Range		100.0%
Weighted Average	[1]	100%
Unsecured term loans 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Valuation Technique		Collateral Value Coverage
Unobservable Input		Net Asset Value (%)
Range		100.0%
Weighted Average	[1]	100%
Structured finance securities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 41,362	$ 38,030
Valuation Technique		Discounted Cash Flow	Discounted Cash Flow
Unobservable Input		Discount Rate (%)	Discount Rate (%)
Range		12.0% - 22.0%	10.0% - 15.0%
Weighted Average	[1]	17.6%	14,2%
Structured finance securities 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input		Recovery Rate (%)	Recovery Rate (%)
Range		35.0% - 70.0%	35.0% - 70.0%
Weighted Average	[1]	70.0%	70.0%
Structured finance securities 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input		Prepayment Rate (%)	Prepayment Rate (%)
Range		20.0%	20.0%
Weighted Average	[1]	20.0%	20.0%
Equity interests [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value		$ 83,990	$ 75,632
Valuation Technique		Enterprise Value Waterfall	Enterprise Value Waterfall
Unobservable Input		EBITDA Multiples (x)	EBITDA Multiples (x)
Range		5.5x - 28.6x	4.0x - 28.6x
Weighted Average	[1]	11.0x	9.3x
Equity interests 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input		Revenue Multiples (x)	Revenue Multiples (x)
Range		1.3x - 11.2x	1.0x - 11.7x
Weighted Average	[1]	6.4x	6.6x
Second lien term loans 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input			EBITDA Multiples (x)
Range			7.5x
Weighted Average	[1]		7.5x
Unsecured term loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value			$ 15,931
Valuation Technique			Market Comparables
Unobservable Input			Market Yield (%)
Range			22.3%
Weighted Average	[1]		22.3%
Unsecured term loans 1 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input			Net Asset Value
Range			100.0%
Weighted Average	[1]		100.0%
Equity interests 2 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable Input			Third-party bid
Range			100.0%
Weighted Average	[1]		100.0%

[1] The weighted average in the table above is calculated based on each investment’s fair value weighting, using the applicable unobservable input.