Annual report [Section 13 and 15(d), not S-K Item 405]

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

v3.25.2
Financing Agreements - Lines of Credit - Trading Credit Facility - Additional Information (Details) - Trading Credit Facility - Line of Credit - USD ($)
12 Months Ended
Dec. 21, 2021
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
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%    
Accumulated amortization of loan cost   $ 3,500,000 $ 3,400,000  
Variable rate basis   daily SOFR rate    
Borrowings due on demand   $ 345,000,000 245,000,000  
Borrowings available   99,100,000 145,500,000  
Line of credit, increase in incremental facility   190,000,000    
Line of credit facility amended increase in incremental facility   467,000,000    
Interest expense   $ 26,600,000 $ 24,300,000 $ 15,900,000
Percentage of total expense recognized   57.50% 61.40% 50.30%
Effective rate of interest   8.70% 8.50% 7.20%
Maximum        
Debt Instrument [Line Items]        
Line of credit, current borrowing capacity $ 350,000,000