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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s 2013 income tax rate for the six months ended June 30, 2013 was 34.8% compared to 35.3% for the same period last year. The Company's 2013 effective tax rate was favorably impacted by the reinstatement of the U.S. Federal Research and Development tax credit with the enactment of the American Taxpayer Relief Act of 2012 at the beginning of 2013. The Company recorded the benefit of the Research and Development tax credit for the full year of 2012 in the first quarter of 2013 and, through six months of 2013, half of the benefit of the 2013 tax credit.

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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