1001 - Disclosure - N-2 - [Fee Table] link:presentationLink link:definitionLink link:calculationLink 1002 - Disclosure - N-2 - [Senior Securities] link:presentationLink link:definitionLink link:calculationLink 1003 - Disclosure - N-2 - [Investment Objectives] link:presentationLink link:definitionLink link:calculationLink 1004 - Disclosure - N-2 - [Risk Factors] link:presentationLink link:definitionLink link:calculationLink 1005 - Disclosure - N-2 - [Effects of Leverage] link:presentationLink link:definitionLink link:calculationLink 1006 - Disclosure - N-2 - [Capital Stock] link:presentationLink link:definitionLink link:calculationLink 1007 - Disclosure - N-2 - [Long Term Debt] link:presentationLink link:definitionLink link:calculationLink 1008 - Disclosure - N-2 - [Outstanding Securities] link:presentationLink link:definitionLink link:calculationLink Expenses assuming a 5.0 annual return solely from net realized capital gains [Member] Expenses on a 1,000 investment, assuming a 5.0 annual return from net investment income [Member] Federal Income Tax Risks [Member] Risks Related to an Investment in the Common Shares [Member] Risks Related to BDCs [Member] Risks Related to Debt Financing [Member] Risks related to debt financing. Risks Related to Our Business and Structure [Member] Risks related to our business and structure. Risks Related to Our Investments [Member] Risks related to our investments. Risks Related to the Advisers and Their Affiliates [Member] April Two Thousand Thirty Notes [Member] April Two Thousand Twenty Six UK Bonds [Member] Bard Peak Funding Facility [Member] Bear Peak Funding Facility [Member] Bison Peak Funding Facility [Member] Blanca Peak Funding Facility [Member] Borah Peak Funding Facility [Member] Bushnell Peak Funding Facility [Member] Class D Shares [Member] Class I Shares [Member] Class S Shares [Member] Castle Peak Funding Facility [Member] Common Shares [Member] December Two Thousand Twenty Six Notes [Member] Denali Peak Funding Facility [Member] Granite Peak Funding Facility [Member] Haydon Peak Funding Facility [Member] January Two Thousand Thirty One Notes [Member] January Two Thousand Thirty Two Notes [Member] January Two Thousand Twenty Five Notes [Member] January Two Thousand Twenty Nine Notes [Member] July Two Thousand Twenty Nine Notes [Member] June Two Thousand Twenty Four Notes [Member] March Two Thousand Thirty One Five Point Five Four Percent Notes [Member] March Two Thousand Thirty Three Notes [Member] March Two Thousand Twenty Five Notes [Member] March Two Thousand Twenty Seven Notes [Member] Maroon Peak Funding Facility [Member] May Two Thousand Twenty Seven Notes [Member] Meridian Peak Funding Facility [Member] Middle Peak Funding Facility [Member] MML Two Thousand Twenty One One Debt [Member] MML Two Thousand Twenty Two One Debt [Member] MML Two Thousand Twenty Two Two Debt [Member] Monarch Peak Funding Facility [Member] Naomi Peak Funding Facility [Member] November Two Thousand Thirty Four Notes [Member] November Two Thousand Twenty Eight Notes [Member] November Two Thousand Twenty Four Notes [Member] November Two Thousand Twenty Nine Notes [Member] November Two Thousand Twenty Six Eurobonds [Member] October Two Thousand Twenty Seven Notes [Member] Other Terms of Common Shares [Member] Phoenix Peak Funding Facility [Member] Preferred Shares [Member] Revolving Credit Facilitys [Member] Revolving Credit Facility [Member] September Two Thousand Thirty Notes [Member] September Two Thousand Twenty Five Notes [Member] September Two Thousand Twenty Four Notes [Member] September Two Thousand Twenty Seven Notes [Member] ShortTerm Borrowings [Member] Summit Peak Funding Facility [Member] Two Thousand Twenty Five BSL Notes [Member] Two Thousand Twenty Five Lender Finance Notes [Member] Two Thousand Twenty Five One Notes [Member] Two Thousand Twenty Five Two Lender Finance Facility [Member] Two Thousand Twenty Four One Notes [Member] Two Thousand Twenty Four Two Notes [Member] Two Thousand Twenty One One BSL Notes [Member] Two Thousand Twenty One Two Notes [Member] Two Thousand Twenty Six Notes [Member] Two Thousand Twenty Three One Notes [Member] Two Thousand Twenty Two One BSL Debt [Member] Two Thousand Twenty Two One BSL WH [Member] Windom Peak Funding Facility [Member]