Investments - MRCC Senior Loan Fund I, LLC (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Investments
Outstanding commitments to fund investments under undrawn revolvers and delayed draw commitments	$ 280,522	$ 319,237

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

No definition available.

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant