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Income Taxes Income Taxes Narrative (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2013
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Mar. 31, 2012
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| US Federal Statutory Tax Rate | 35.00% | 35.00% |
| Income Tax Reconciliation, Tax Credits, Research | $ 4.0 | |
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to research tax credits generated or utilized under enacted tax laws during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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