v3.7.0.1

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Excess amount for financial reporting over tax basis of investments in foreign subsidiaries reinvested indefinitely	$ 265,000,000
Unrecognized deferred tax liability on basis differentials reinvested indefinitely	24,800,000
Investments in foreign subsidiaries	3,900,000	$ 2,200,000
Tax benefit relating to enactment of change in law		3,200,000
Deferred tax on outside basis of foreign shares	(1,800,000)	3,000,000	$ 31,600,000
NOl carryforward, valuation allowance	15,300,000	11,800,000
Research and experimentation tax credit	2,400,000	1,300,000
Reserve for unrecognized tax benefits	4,100,000	7,200,000	7,400,000	$ 9,600,000
Deferred tax assets, net operating losses reduction		2,700,000
Indemnification asset related to the foreign tax contingencies, including interest and penalties	4,700,000	7,600,000
Interest and penalty expense related to unrecognized tax benefits	100,000	200,000	200,000
Accrued liability for penalties and interest	1,400,000	1,300,000	$ 1,100,000
Significant change in unrecognized tax benefits is reasonably possible over the next twelve months	$ 0	0
Earliest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2004
Latest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2016
Foreign Tax Authority [Member]
Income Taxes [Line Items]
NOL carryforward	$ 57,600,000	40,200,000
Reserve for unrecognized tax benefits	4,100,000	$ 4,500,000
Foreign Tax Authority [Member] | Expire in Various Years Ranging from 2018 Through 2025 [Member]
Income Taxes [Line Items]
NOL carryforward	$ 5,400,000
Expiration period	Of the December 31, 2016 balance, foreign NOL carryforwards totaling $5.4 million will expire in various years ranging from 2018 through 2025
Foreign Tax Authority [Member] | No Expiration Date [Member]
Income Taxes [Line Items]
NOL carryforward	$ 52,300,000

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The amount of indemnification assets (amounts to be reimbursed if and when certain assumed liabilities are paid) recognized at the acquisition date of a business combination.

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Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.

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Amount of tax (expense) benefit from continuing operations attributable to government grants to the extent recognized as a reduction of income tax expense.

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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 repatriation of foreign earnings.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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