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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Effective income tax rate (in hundredths)	50.70%	47.70%	50.80%	49.20%
U.S. Federal statutory rate (in hundredths)	35.00%
Expected annual effective income tax rate	mid-forty percent range
Statement [Line Items]
Tax rate excluding discrete items and French business tax (in hundredths)	34.00%	37.00%	35.00%	37.00%
Gross unrecognized tax benefits, including interest and penalties	$ 30.6		$ 30.6		$ 27.0
Related tax benefits	3.6		3.6		3.6
Net unrecognized tax benefits	27.0		27.0		23.4
Minimum [Member]
Statement [Line Items]
Unrecognized tax benefits to reverse because of expiration of statute of limitations	5.0		5.0
Maximum [Member]
Statement [Line Items]
Unrecognized tax benefits to reverse because of expiration of statute of limitations	$ 6.0		$ 6.0

X

- Definition

A ratio calculated by dividing the expected annual income tax expense attributable to continuing operations by GAAP-basis forecast pretax income from continuing operations. This ratio represents the effective income tax rate that the Company expects to realize for the fiscal year, as of the balance sheet date.

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Represents the income tax rate excluding the impact of discrete items and French business tax.

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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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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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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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

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