Receivables - Schedule of Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	$ 104,522	$ 89,000
Customer Trade Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	84,615	12,197
Wholesale Trade Advances
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	17,047	26,959
Due from Brokers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	$ 2,860	$ 49,844