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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal Income Tax Rate	21.00%	35.00%
Expense (benefit) from revaluation of net deferred tax liabilities		$ (4,683)
Provision for income taxes related to deemed mandatory repatriation		1,250
One time income tax adjustment related tax cuts and jobs act	$ 1,089
Interest and penalties related to unrecognized tax benefits accrued	2,368	$ 2,257	$ 408
Undistributed foreign earnings reinvested	$ 4,297

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One time income tax adjustment related tax cuts and jobs act of 2017.

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Tax cuts and jobs act of 2017 change in tax rate income tax expense (benefit).

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Tax cuts and jobs act of 2017 income tax expense accounting provisional, mandatory deemed repatriation tax.

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
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Amount of foreign earnings repatriated from subsidiaries outside the country of domicile.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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-Publisher FASB
-Name Accounting Standards Codification
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