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Year in which the entity's net operating loss carryforwards expire.

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Income Tax [Line Items]

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Unrecognized tax benefits income tax penalties and interest accrued net of federal tax benefits.

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Amount of previously accrued interest and penalties related to settled tax positions reversed in the period.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate net of federal benefit received from state positions.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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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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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits.

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

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax [Line Items]
Tax benefit from stock options exercised	$ 400,000	$ 3,200,000	$ 2,200,000
Income tax benefit charged to additional paid-in capital	400,000	2,300,000	1,200,000
Federal net operating losses, deferred tax asset before valuation allowance	13,700,000
Deferred tax assets before valuation allowances	140,146,000	126,563,000
Foreign net operating losses, deferred tax asset before valuation allowance	48,600,000
Foreign income tax credits	$ 53,976,000	53,976,000
Foreign income tax credits, expiration period	2023
Valuation allowance	$ 105,541,000	91,672,000
Increase (decrease) in valuation allowance	13,900,000
Cash and cash equivalents	762,576,000	540,403,000	740,884,000	$ 491,912,000
Undistributed earnings	1,900,000,000
Unrecognized tax benefits	94,915,000	92,538,000	66,984,000
Unrecognized tax benefits that would affect our effective tax rate	39,100,000	43,800,000
Unrecognized tax benefits that would affect our effective tax rate, net of federal benefits received	35,700,000	40,700,000
Accrued expense and penalties	2,900,000	3,200,000	3,000,000
Accrued interest and penalties reversed			$ 10,500,000
Liability for interest and penalties	31,700,000	28,800,000
Interest expense	24,300,000	22,100,000
Minimum [Member]
Income Tax [Line Items]
Anticipated settlement of unrecognized tax benefits	61,600,000
Maximum [Member]
Income Tax [Line Items]
Anticipated settlement of unrecognized tax benefits		$ 63,100,000
Non-U.S Subsidiaries [Member]
Income Tax [Line Items]
Cash and cash equivalents	408,900,000
Non-U.S. Net Operating Losses and Other Assets [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	(2,800,000)
Foreign currency translation [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	(500,000)
U.S. net operating losses and other assets [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	(600,000)
Foreign net operating loss adjustments [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	16,900,000
Non-U.S. net operating losses and other foreign assets [Member]
Income Tax [Line Items]
Increase (decrease) in valuation allowance	900,000
Federal [Member]
Income Tax [Line Items]
Net operating loss carryforwards	$ 39,100,000
Operating loss carryforward, expiration period	2023
State [Member]
Income Tax [Line Items]
Deferred tax assets before valuation allowances	$ 2,900,000
Operating loss carryforward, expiration period	2017
Foreign [Member]
Income Tax [Line Items]
Operating loss carryforward, expiration period	2017