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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Effective tax rate	81.00%	654.00%	44.00%	74.00%
Unrecognized deferred tax liability related to undistributed earnings of non-U.S. subsidiaries	$ 489		$ 489
Decrease in unrecognized tax benefits due to settlements with tax authority			390
Total unrecognized tax benefits	198		198
Accrued interest and penalties	$ 516		$ 516		$ 651

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- Definition

Accrued interest and penalties related to uncertain tax positions.

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Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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