Quarterly report pursuant to Section 13 or 15(d)

Financing Agreements - Lines of Credit - Additional Information (Details)

v3.22.2.2
Financing Agreements - Lines of Credit - Additional Information (Details) - Trading Credit Facility - Line of Credit - USD ($)
3 Months Ended
Dec. 21, 2021
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Debt Instrument [Line Items]        
Line of credit facility term 3 years      
Line of credit, termination date Dec. 21, 2024      
Stated interest rate (in percentage)   5.30%    
Accumulated amortization of loan cost   $ 3,200,000   $ 3,400,000
Variable rate basis   daily SOFR rate    
Credit facility, interest rate at period end   2.98%    
Borrowings due on demand   $ 63,000,000.0   215,000,000.0
Borrowings available   162,800,000   $ 122,000,000.0
Interest expense   $ 2,500,000 $ 2,000,000.0  
Percentage of total expense recognized   40.20% 36.30%  
Effective rate of interest   5.57% 3.55%  
Maximum        
Debt Instrument [Line Items]        
Line of credit, current borrowing capacity $ 350,000,000.0      
Minimum        
Debt Instrument [Line Items]        
Lender holding percentage of revolving commitments   66.67%    
SOFR        
Debt Instrument [Line Items]        
Applicable margin of basis points 2.36%