Estimate of effective income tax rate reconciliation income inclusion global intangible low tax income tax.

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- Definition

Income taxes.

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Period within which company does not anticipate unrecognized tax benefits to change.

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- Definition

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		9 Months Ended
	Mar. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Provision for income taxes		$ 1,896	$ 2,493	$ 2,338	$ 4,647
Effective tax rate (as a percentage)		12.60%	23.70%	12.90%	28.00%
Federal corporate tax rate						21.00%	35.00%
Liability for unrecognized tax benefits	$ 2,419	$ 2,527		$ 2,527		$ 2,527
Period within which the company does not anticipate total unrecognized tax benefits to change				within the next twelve months
Income tax expense due to tax reform	$ 1,381
Non-US
Income Taxes [Line Items]
Estimate of effective income tax rate reconciliation income inclusion of global intangible low tax income tax				$ 3,028