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Income Taxes (Details 7) (IRS, USD $) In Millions, unless otherwise specified | 1 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2011 M | Jan. 05, 2011 | Oct. 14, 2009
IRS |  |  |
Tax Examinations |  |  |
Additional income tax from assessment of tax years 2003 and 2004 |  |  | $ 24.9
Total assessment from assessment of tax years 2003 and 2004 including interest, withholding tax and utilization of credits |  |  | 51.9
Income tax benefit from the settlement of the 2003 through 2004 tax examination |  |  | 17.8
Total assessment from assessment of tax years 2005 and 2006 including interest, withholding tax and utilization of credits |  | $ 19.6 |
Reasonably possible period during which resolution could occur (in months) | 12 |  |

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