Derivative Instruments - (Details Textual) - Mexican Peso Forward Contracts	6 Months Ended
Dec. 31, 2017
Derivative [Line Items]
Forward contract settlement dates, beginning	Oct. 16, 2015
Forward contract settlement dates, ending	Jun. 15, 2018

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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