Quarterly report pursuant to Section 13 or 15(d)

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

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Financing Agreements - Lines of Credit - Trading Credit Facility - Additional Information (Details) - Trading Credit Facility - Line of Credit - USD ($)
3 Months Ended 6 Months Ended
Dec. 21, 2021
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Jun. 30, 2024
Debt Instrument [Line Items]            
Line of credit, maturity date Dec. 21, 2024     Sep. 30, 2026    
Applicable margin of basis points 2.36%          
Credit facility, interest rate at period end       4.50%    
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap:SecuredOvernightFinancingRateSofrMember     us-gaap:SecuredOvernightFinancingRateSofrMember    
Stated interest rate (in percentage)   6.90%   6.90%    
Accumulated amortization of loan cost   $ 4,400,000   $ 4,400,000   $ 3,400,000
Variable rate basis       daily SOFR rate    
Borrowings due on demand   225,000,000   $ 225,000,000   245,000,000
Borrowings available   197,500,000   197,500,000   $ 145,500,000
Line of credit, increase in incremental facility   190,000,000   190,000,000    
Line of credit facility amended increase in incremental facility       422,500,000    
Interest expense   $ 6,500,000 $ 5,900,000 $ 12,900,000 $ 11,600,000  
Percentage of total expense recognized   63.20% 58.30% 63.50% 58.20%  
Effective rate of interest   8.70% 8.70% 8.90% 8.40%  
Maximum            
Debt Instrument [Line Items]            
Line of credit, current borrowing capacity $ 350,000,000