v3.25.4
Formation and Business Purpose (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Feb. 18, 2020
Summary of Investment Holdings [Line Items]    
Investment company, investment period, automatic extension   1 year
Investment company, investment period, automatic extension or termination, written notice period, minimum   90 days
Investment company, expiration of Investment period, commencement of wind up of operations, period   2 years
Investment company, expiration of Investment period, commencement of wind up of operations, extension period   1 year
New Mountain Capital    
Summary of Investment Holdings [Line Items]    
Assets under management, carrying amount $ 60,000,000  
Minimum    
Summary of Investment Holdings [Line Items]    
Investment company, investment owned, investment objective, middle market business, EBITDA 10,000  
Maximum    
Summary of Investment Holdings [Line Items]    
Investment company, investment owned, investment objective, middle market business, EBITDA $ 200,000