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Provision for Income Taxes Reconciles with U.S. Federal Statutory Rate (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||
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Dec. 31, 2009
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Reconciliation of Statutory Federal Tax Rate [Line Items] | ||||
| Provision for income taxes | $ 7.3 | $ 168.0 | $ 131.9 | $ 106.6 |
| Effective income tax rate reduction | 2.10% | |||
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- Details
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- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to other deductions received under enacted tax laws not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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