v3.26.3
Fair Value of Financial Instruments - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
$ / shares
Dec. 31, 2025
USD ($)
$ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 1,501,652 [1] $ 1,812,990 [2]
Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: 1,409,732 1,677,033
Level 3 | Senior secured first lien debt | Discounted Cash Flow | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 829,167 $ 1,125,658
Level 3 | Senior secured first lien debt | Discounted Cash Flow | Minimum | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.096 0.083
Level 3 | Senior secured first lien debt | Discounted Cash Flow | Maximum | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.711 0.561
Level 3 | Senior secured first lien debt | Discounted Cash Flow | Weighted Average | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.163 0.133
Level 3 | Senior secured first lien debt | Market Comparable Approach | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 99,614 $ 123,118
Level 3 | Senior secured first lien debt | Market Comparable Approach | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 72,909 $ 43,583
Level 3 | Senior secured first lien debt | Market Comparable Approach | Minimum | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.75 0.75
Level 3 | Senior secured first lien debt | Market Comparable Approach | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 2.75 1.50
Level 3 | Senior secured first lien debt | Market Comparable Approach | Maximum | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 5.00 4.00
Level 3 | Senior secured first lien debt | Market Comparable Approach | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 12.50 5.00
Level 3 | Senior secured first lien debt | Market Comparable Approach | Weighted Average | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 1.84 1.71
Level 3 | Senior secured first lien debt | Market Comparable Approach | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 8.4 3.33
Level 3 | Senior secured first lien debt | Other | Probability Weighted Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 24,104 $ 34,919
Level 3 | Senior secured first lien debt | Other | Insurance Claim Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.46 0.383
Investments, at fair value: $ 24,699 $ 23,133
Level 3 | Senior secured first lien debt | Other | Minimum | Probability Weighted Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.14 0.15
Level 3 | Senior secured first lien debt | Other | Maximum | Probability Weighted Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 1 1
Level 3 | Senior secured first lien debt | Other | Weighted Average | Probability Weighted Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.99 0.97
Level 3 | Senior secured first lien debt | Broker Quotes | Broker Quotes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 3,477 $ 20,114
Level 3 | Senior secured second lien debt | Market Comparable Approach | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 1.33 1.43
Investments, at fair value: $ 0 $ 0
Level 3 | Collateralized securities and structured products - equity | Discounted Cash Flow | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input   0.135
Investments, at fair value:   $ 5,028
Level 3 | Unsecured debt | Discounted Cash Flow | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.145 0.123
Investments, at fair value: $ 1,620 $ 1,646
Level 3 | Unsecured debt | Market Comparable Approach | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input   9.75
Investments, at fair value:   $ 153
Level 3 | Unsecured debt | Other | Probability Weighted Recovery Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.25 0.25
Investments, at fair value: $ 4,809 $ 4,840
Level 3 | Unsecured debt | Options Pricing Model | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.21  
Investments, at fair value: $ 1,239  
Level 3 | Equity | Discounted Cash Flow | Discount Rates    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.085  
Investments, at fair value: $ 6,774  
Level 3 | Equity | Market Comparable Approach | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: 74,352 34,934
Level 3 | Equity | Market Comparable Approach | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: 146,174 $ 127,094
Level 3 | Equity | Market Comparable Approach | $ per kW    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input | $ / shares   1,000
Investments, at fair value: $ 99,241 $ 105,657
Level 3 | Equity | Market Comparable Approach | Minimum | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.43 0.35
Level 3 | Equity | Market Comparable Approach | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 2.75 4.00
Level 3 | Equity | Market Comparable Approach | Minimum | $ per kW    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input | $ / shares 938  
Level 3 | Equity | Market Comparable Approach | Maximum | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 5 4.00
Level 3 | Equity | Market Comparable Approach | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 22.75 26.38
Level 3 | Equity | Market Comparable Approach | Weighted Average | Revenue Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.72 0.63
Level 3 | Equity | Market Comparable Approach | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 11.68 12.49
Level 3 | Equity | Other | Other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 2,019 $ 810
Level 3 | Equity | Broker Quotes | Broker Quotes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: 255 9,571
Level 3 | Equity | Options Pricing Model | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Investments, at fair value: $ 19,279 $ 16,775
Level 3 | Equity | Options Pricing Model | Minimum | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.40 0.433
Level 3 | Equity | Options Pricing Model | Maximum | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.80 1.125
Level 3 | Equity | Options Pricing Model | Weighted Average | Expected Volatility    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.57 0.573
[1] Fair value determined in good faith by CION Investment Management, LLC, or CIM, as the Company’s valuation designee, subject to oversight of the Company's board of directors (see Note 9 and Note 2), using significant unobservable inputs unless otherwise noted.
[2] Fair value determined in good faith by CIM, as the Company's valuation designee, subject to the oversight of the Company's board of directors (see Note 9 and Note 2), using significant unobservable inputs unless otherwise noted.