Annual report pursuant to Section 13 and 15(d)

Hedging Transactions (Outstanding Commitments) (Details)

v2.4.0.8
Hedging Transactions (Outstanding Commitments) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Jun. 30, 2013
Derivative [Line Items]    
Purchase commitments $ 489,944 $ 461,883
Sale commitments (190,108) (272,044)
Margin sales commitments (15,751) (13,651)
Open derivative contracts 427,039 256,271
Precious metals forward contracts at market values
    
Derivative [Line Items]    
Open derivative contracts 206,055 84,999
Future contracts
    
Derivative [Line Items]    
Open derivative contracts $ 220,984 $ 171,272