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Fair Value Measurement - Schedule of Financial Assets and Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 3,023 $ 0
Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 3,023 11,839
Derivative financial instrument asset 1,174 792
Financial Assets 4,197 12,631
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 3,023 11,839
Derivative financial instrument asset 1,174 792
Financial Assets $ 4,197 $ 12,631