Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Line Items]
Income tax expense	$ 19,642	$ 29,345	$ 47,259	$ 41,646
Effective tax rate for continuing operations	32.60%	33.30%	31.20%	32.40%
U.S. federal statutory rate			35.00%
Valuation allowance amount	28,776		28,776
Liability for uncertain tax positions noncurrent	4,857		4,857
U.S. [Member]
Income Tax Disclosure [Line Items]
Valuation allowance amount	19,880		19,880
Non U.S [Member]
Income Tax Disclosure [Line Items]
Valuation allowance amount	$ 8,896		$ 8,896

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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