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Derivatives (Details) (Options, Cash flow hedges)
In Thousands, unless otherwise specified
Mar. 31, 2014
Brazilian Real calls
BRL
Mar. 31, 2014
Brazilian Real calls
Fair value, Level 2
USD ($)
Jun. 30, 2013
Brazilian Real calls
Fair value, Level 2
USD ($)
Mar. 31, 2014
Brazilian Real puts
BRL
Mar. 31, 2014
Brazilian Real puts
Fair value, Level 2
USD ($)
Jun. 30, 2013
Brazilian Real puts
Fair value, Level 2
USD ($)
Derivative [Line Items]            
Notional amount 96,000     (96,000)    
Fair value   $ 334 $ 365   $ (264) $ (1,004)