Other Income - Components of Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Liabilities Disclosure [Abstract]
Foreign exchange gain	$ 595	$ 4,794	$ 182	$ 4,774
Other income	19	19	67	49
Total	$ 614	$ 4,813	$ 249	$ 4,823

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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-Name Accounting Standards Codification
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Amount of income related to nonoperating activities, classified as other.

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