Other Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other income, net			$ 230	$ 1,346	$ 414
Foreign Currency Transaction Gain (Loss), before Tax	$ (13,324)	$ (660)	$ (23,258)	$ 18,137	$ (213)

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

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