Quarterly report pursuant to Section 13 or 15(d)

Accounts Payables (Details)

v2.4.1.9
Accounts Payables (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Jun. 30, 2014
Accounts Payable, Current [Abstract]    
Trade payable to customers payables $ 754amrk_TradePayableToCustomersAndConsignorPayablesCurrent $ 366amrk_TradePayableToCustomersAndConsignorPayablesCurrent
Advances from customers 57,784us-gaap_CustomerAdvancesCurrent 38,739us-gaap_CustomerAdvancesCurrent
Liability on deferred revenue 14,810us-gaap_DeferredRevenueCurrent 4,177us-gaap_DeferredRevenueCurrent
Net liability on margin accounts 6,994amrk_NetLiabilityOnMarginAccountsCurrent 8,983amrk_NetLiabilityOnMarginAccountsCurrent
Other accounts payable 1,478us-gaap_AccountsPayableOtherCurrent 1,362us-gaap_AccountsPayableOtherCurrent
Accounts payable, current, excluding derivative liabilities 81,820amrk_AccountsPayablecurrentExcludingderivativeliabilities 53,627amrk_AccountsPayablecurrentExcludingderivativeliabilities
Derivative liabilities — open sales and purchase commitments, net 560amrk_DerivativeLiabilitiesOpenPurchasesandSalesCommitments 848amrk_DerivativeLiabilitiesOpenPurchasesandSalesCommitments
Derivative liabilities — futures contracts 0amrk_DerivativeLiabilitiesFutureContracts 8,078amrk_DerivativeLiabilitiesFutureContracts
Derivative liabilities — forward contracts 4,951amrk_DerivativeLiabilitiesForwardContracts 14,873amrk_DerivativeLiabilitiesForwardContracts
Accounts payable $ 87,331us-gaap_AccountsPayableCurrent $ 77,426us-gaap_AccountsPayableCurrent