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Organization - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
	Sep. 03, 2021	Feb. 11, 2014	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023	Jun. 30, 2022	Aug. 30, 2021
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Issuance of common shares	453,985		0	0	0	0
Common stock, par value	$ 0.001		$ 0.001		$ 0.001		$ 0.001
Shares offering, price per share	$ 6.92
Common stock, shares issued			14,397,121		14,397,121		14,391,775
Common stock, shares outstanding			14,397,121	14,391,775	14,397,121	14,391,775	14,391,775
Repayment of debt percentage					100.00%
Qualifying assets percentage					70.00%
Amount of market capitalization					$ 250,000
Taxable subsidiaries			$ 0		$ 0		$ 0
CM Finance LLC
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Common stock, shares issued			6,000,000		6,000,000
Issuance of debt			$ 39,800
Stifel Venture Corp
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Common stock, shares issued								2,181,818
Issuance of common shares					$ 32,700
Number of common stock shares repurchased					2,181,818
Common stock, shares outstanding			13,666,666		13,666,666
Investcorp Credit Management
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Common stock, par value									$ 0.001
Common stock, shares issued									680,985
Common stock, shares outstanding									680,985
IPO | Investcorp Credit Management | Common Stock
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Issuance of common shares		7,666,666
Common stock, par value		$ 0.001
Shares offering, price per share		$ 15
Proceeds from initial public offering		$ 111,500

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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