|
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Sep. 30, 2012
|
Sep. 30, 2011
|
Dec. 31, 2011
|
|
| Income Tax Disclosure [Abstract] | |||||
| Effective tax rate | 4.40% | 15.20% | 6.50% | 10.00% | |
| Tax benefit from reduction of liability for uncertain tax positions | $ 0.2 | ||||
| Unrecognized tax benefits | $ 1.1 | $ 1.1 | $ 1.2 | ||
| X | ||||||||||
|
- Definition
Income Tax Expense (Benefit), Continuing Operations, Adjustment to Unrecognized Tax Benefits No definition available.
|
| X | ||||||||||
|
- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|