Provision for Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2013
Tax Credit Carryforward [Line Items]
Tax provision on foreign earnings	$ 1.5
Minimum likelihood of tax benefits being recognized upon ultimate settlement	50.00%		50.00%
Valuation allowance increase	$ 0.1	$ 0.1
Effective tax rate for continuing operations			31.80%
U.S. statutory rate			35.00%

The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of foreign enacted tax law to the foreign taxable Income or Loss from continuing operations.

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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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- Definition

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 amount of the change in the period in the valuation allowance for a specified deferred tax asset.

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