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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2013
Income Taxes
Income Taxes	Note 7 — Income Taxes The income tax provisions for the quarter and six months ended June 30, 2013 were $20.6 million and $38.5 million, respectively. The effective tax rate for both periods was about 30%. The first half of 2013 benefitted from the extension of the 2012 and 2013 U.S. Research & Development tax credits that was enacted in January 2013. The full retroactive benefit from 2012 was taken in the first quarter of 2013 for a benefit of $0.6 million. The income tax provisions for the quarter and six months ended June 30, 2012 were $22.1 million and $40.5 million, respectively. The effective tax rate for both periods was just under 32%.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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