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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Income tax expense	$ (8.7)	$ (8.5)	$ (27.3)	$ (18.4)
Effective tax rate	34.70%	35.90%	35.50%	31.60%
Reduction in unrecognized tax benefits from completion of IRS audit	$ 1.5

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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