Income Taxes - Deferred Tax Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Net Deferred Income Tax Liability [Abstract]
Deferred income tax assets, non-current	$ 111	$ 0
Non-current deferred income tax liabilities	(11,888)	(8,558)
Net deferred income tax liabilities	$ (11,777)	$ (8,558)

No definition available.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax.

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