v3.26.1
Fair Value - Summary of Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets $ 98,000 $ 95,000
Recurring Fair Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 2,099,331 2,124,812
Recurring Fair Value [Member] | Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 47,132 48,256
Recurring Fair Value [Member] | Senior Secured Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 1,237,554 1,260,389
Recurring Fair Value [Member] | Senior Secured Loans [Member] | Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Equipment Financing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 98,000 119,021
Recurring Fair Value [Member] | Equipment Financing [Member] | Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Preferred Equity [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 34,309 32,858
Recurring Fair Value [Member] | Preferred Equity [Member] | Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Common Equity/Equity Interests/Warrants [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 729,468 712,544
Recurring Fair Value [Member] | Common Equity/Equity Interests/Warrants [Member] | Measured at Net Asset Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 47,132 48,256
Recurring Fair Value [Member] | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 133 138
Recurring Fair Value [Member] | Level 1 [Member] | Senior Secured Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 1 [Member] | Equipment Financing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 1 [Member] | Preferred Equity [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 1 [Member] | Common Equity/Equity Interests/Warrants [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 133 138
Recurring Fair Value [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 2 [Member] | Senior Secured Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 2 [Member] | Equipment Financing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 2 [Member] | Preferred Equity [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 2 [Member] | Common Equity/Equity Interests/Warrants [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 0 0
Recurring Fair Value [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 2,052,066 2,076,418
Recurring Fair Value [Member] | Level 3 [Member] | Senior Secured Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 1,237,554 1,260,389
Recurring Fair Value [Member] | Level 3 [Member] | Equipment Financing [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 98,000 119,021
Recurring Fair Value [Member] | Level 3 [Member] | Preferred Equity [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 34,309 32,858
Recurring Fair Value [Member] | Level 3 [Member] | Common Equity/Equity Interests/Warrants [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets $ 682,203 $ 664,150