Investments (Details) - Schedule of fair value measurements of investments, by major class - USD ($)	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Investments (Details) - Schedule of fair value measurements of investments, by major class [Line Items]
First lien term loans	$ 798,534,000	$ 631,572,000
Second lien term loans	14,936,000	44,386,000
Unsecured term loans	20,661,000	15,931,000
Structured finance securities	41,362,000	38,030,000
Equity interests	97,097,000	87,648,000
Total	972,590,253	817,567,355
Level 1 [Member]
Investments (Details) - Schedule of fair value measurements of investments, by major class [Line Items]
First lien term loans
Second lien term loans
Unsecured term loans
Structured finance securities
Equity interests
Total
Level 2 [Member]
Investments (Details) - Schedule of fair value measurements of investments, by major class [Line Items]
First lien term loans
Second lien term loans
Unsecured term loans
Structured finance securities
Equity interests
Total
Level 3 [Member]
Investments (Details) - Schedule of fair value measurements of investments, by major class [Line Items]
First lien term loans	798,534,000	631,572,000
Second lien term loans	14,936,000	44,386,000
Unsecured term loans	20,661,000	15,931,000
Structured finance securities	41,362,000	38,030,000
Equity interests	83,990,000	75,632,000
Total	959,483,000	805,551,000
Valued Using Net Asset Value [Member]
Investments (Details) - Schedule of fair value measurements of investments, by major class [Line Items]
First lien term loans
Second lien term loans
Unsecured term loans
Structured finance securities
Equity interests	13,107,000	12,016,000
Total	$ 13,107,000	$ 12,016,000