Quarterly report pursuant to Section 13 or 15(d)

Hedging Transactions (Narrative) (Details)

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Hedging Transactions (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Foreign Exchange
Jun. 30, 2014
Foreign Exchange
Sep. 30, 2014
Forward contracts
Jun. 30, 2014
Forward contracts
Derivative [Line Items]            
Realized loss on future commodity contracts, net $ (6,356) $ (17,589)        
Derivative usual settlement period 2 days          
Derivative open positions expected settlement period 30 days          
Unrealized losses on foreign exchange 9 (36)        
Open inventory sale commitments     $ 1,433 $ 2,684 $ 3,489 $ 3,829