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Derivatives and Hedging Activities - Derivative Contracts and Changes in Underlying Value of the Foreign Currency Exposures (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
General Discussion of Derivative Instruments and Hedging Activities [Abstract]        
Net foreign exchange derivative contract (gains) losses $ (199) $ (598) $ (959) $ (2,300)
Net foreign currency transactional and re-measurement (gains) losses 507 1,026 1,879 3,555
Net foreign currency (gains) losses $ 308 $ 428 $ 920 $ 1,255