Annual report pursuant to Section 13 and 15(d)

DEBT - SBIC Debentures - Schedule of Maturities Dates and Fixed Interest Rates (Details)

v3.22.4
DEBT - SBIC Debentures - Schedule of Maturities Dates and Fixed Interest Rates (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Debentures $ 2,007,000 $ 1,805,000
Unsecured Notes | 3.16% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.16%  
Debentures $ 16,000 16,000
Unsecured Notes | 3.39% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.95%  
Debentures $ 39,000 39,000
Unsecured Notes | 3.55% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.55%  
Debentures $ 24,800 24,800
Unsecured Notes | 3.52% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.52%  
Debentures $ 40,400 40,400
Unsecured Notes | 3.19% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.19%  
Debentures $ 34,600 34,600
Unsecured Notes | 3.41% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.41%  
Debentures $ 43,000 43,000
Unsecured Notes | 3.55% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 3.55%  
Debentures $ 32,000 32,000
Unsecured Notes | 2.35% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 2.35%  
Debentures $ 15,000 15,000
Unsecured Notes | 1.13% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 1.13%  
Debentures $ 10,000 10,000
Unsecured Notes | 1.31% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 1.31%  
Debentures $ 10,000 10,000
Unsecured Notes | 1.94% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 1.94%  
Debentures $ 25,200 25,200
Unsecured Notes | 1.58% Fixed Interest Rate    
Debt Instrument [Line Items]    
Debt instrument, interest rate, stated percentage 1.58%  
Debentures $ 60,000 60,000
Unsecured Notes | SBIC debentures    
Debt Instrument [Line Items]    
Debentures $ 350,000 $ 350,000