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. This ratio excludes the impact of the French Business Tax.

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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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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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-Name Accounting Standards Codification
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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-Publisher FASB
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-Paragraph 21
-Subparagraph c
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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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-Publisher FASB
-Name FASB Interpretation (FIN)
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-Paragraph 21
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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Effective income tax rate	47.70%	51.50%	49.20%	59.20%
Effective income tax rate, excluding French Business Tax	37.00%		37.00%
U.S. Federal statutory rate	35.00%
Expected annual effective income tax rate					46.00%
Income Tax Contingency [Line Items]
Gross unrecognized tax benefits	$ 27.1		$ 27.1			$ 26.4
Interest and penalties	1.5		1.5			1.4
Related tax benefits	4.3		4.3			4.3
Unrecognized tax benefits that would favorably impact effective tax rate if recognized	$ 22.8		$ 22.8