v3.26.1
Fair Value - Summary of Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets $ 96,000 $ 95,000
Recurring Fair Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 2,113,204 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 47,939 48,256
Recurring Fair Value [Member] | Senior Secured Loans [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 1,239,329 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 111,569 119,021
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 33,576 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 728,730 712,544
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 47,939 48,256
Recurring Fair Value [Member] | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 172 138
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 172 138
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 2,065,093 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 1,239,329 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 111,569 119,021
Recurring Fair Value [Member] | Level 3 [Member] | Preferred Equity [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets 33,576 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 $ 680,619 $ 664,150