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Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate was 28.8% in the first quarter of 2015 compared to 32.6% for same quarter of 2014. Effective tax rates differ from statutory federal income tax rates, primarily due to the domestic manufacturing deduction, provisions for state and local income taxes and permanent tax differences. During calendar year 2014, the Company amended its tax return filings for calendar years 2010 through 2013 to claim incremental research and development tax credits. During the first quarter of 2015, the Internal Revenue Service concluded its audit of the Company's original and amended filings for calendar years through 2012, and as a result, the Company realized additional benefits of approximately $3.9 million from the reversal of the uncertain tax position reserve related to the amended filings.

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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