Quarterly report pursuant to Section 13 or 15(d)

Derivative Instrument and Hedging Transactions (Outstanding Commitments) (Details)

v3.3.1.900
Derivative Instrument and Hedging Transactions (Outstanding Commitments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Jun. 30, 2015
Derivative [Line Items]    
Purchase commitments $ 353,421 $ 444,023
Sale commitments (226,942) (249,081)
Margin sales commitments (12,456) (12,430)
Open derivative contracts 290,827 310,316
Precious metals forward contracts at market values    
Derivative [Line Items]    
Open derivative contracts 124,497 202,323
Future contracts    
Derivative [Line Items]    
Open derivative contracts $ 166,330 $ 107,993