v3.26.1
Borrowings - GBDC 3 2022 Debt Securitization - Narrative (Details) - GBDC 3 2022 Debt Securitization
$ in Thousands
Jun. 03, 2024
USD ($)
Debt Instrument [Line Items]  
Debt instrument, face amount $ 401,750
Subordinated debt  
Debt Instrument [Line Items]  
Debt instrument, face amount 149,750
Class A Senior Secured Floating Rate Notes  
Debt Instrument [Line Items]  
Debt instrument, face amount $ 252,000
Debt instrument, basis spread on variable rate 2.00%