Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Financing Agreements - Lines of Credit - Additional Information (Details) - Line of Credit - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Jun. 30, 2019
Bridge Loan | LIBOR          
Debt Instrument [Line Items]          
Variable rate     4.50%    
Trading Credit Facility          
Debt Instrument [Line Items]          
Interest expense $ 1,900,000 $ 2,000,000 $ 6,000,000 $ 5,900,000  
Percentage of total expense recognized 38.30% 47.60% 39.20% 47.50%  
Effective rate of interest 4.15% 4.89% 4.37% 4.73%  
Revolving Credit Facility | LIBOR          
Debt Instrument [Line Items]          
Variable rate     2.50%    
A-Mark | Trading Credit Facility          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity $ 270,000,000   $ 270,000,000    
Line of credit, current borrowing capacity 220,000,000   220,000,000    
Line of credit, accordion option 50,000,000   50,000,000    
Payments of financing costs     4,100,000    
Accumulated amortization of loan cost $ 700,000   $ 700,000   $ 600,000
Variable rate basis     one-month LIBOR    
Credit facility, interest rate at period end 0.99%   0.99%   2.40%
Borrowings due on demand $ 175,000,000   $ 175,000,000   $ 167,000,000
Borrowings available $ 91,700,000   91,700,000   $ 11,600,000
Line of credit facility, tangible net worth financial covenant     $ 48,100,000