Income Taxes	3 Months Ended
Mar. 31, 2013
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 6. INCOME TAXES During the three months ended March 31, 2013, we recognized $9.9 million of income tax expense compared to a benefit of $39.3 million in the comparable 2012 period. The effective income tax rate was 27.2% during the three months ended March 31, 2013 compared to 34.5% in the comparable 2012 period. The decrease in the effective tax rate is largely driven by the reinstatement of the research and development tax credit effective January 2013, which resulted in recording a benefit for the estimated 2013 credit as well as the recording of the credit for 2012 in the three-month period ending March 31, 2013. Also contributing to the decrease in the effective tax rate is a reduction in the state tax rate due to law changes and the impact of a current period foreign rate differential for certain of our foreign operations, which had a favorable impact during the three months ended March 31, 2013 compared to an unfavorable impact during the comparable 2012 period. These decreases were partially offset by the impact of certain excess golden parachute payments. During the three months ended March 31, 2012, the effective tax rate benefited from the favorable impact of certain excess golden parachute payments. This benefit did not reoccur during the three months ended March 31, 2013.

Income Taxes

3 Months Ended

Mar. 31, 2013

NOTE 6. INCOME TAXES

During the three months ended March 31, 2013, we recognized $9.9 million of income tax expense compared to a benefit of $39.3 million in the comparable 2012 period. The effective income tax rate was 27.2% during the three months ended March 31, 2013 compared to 34.5% in the comparable 2012 period. The decrease in the effective tax rate is largely driven by the reinstatement of the research and development tax credit effective January 2013, which resulted in recording a benefit for the estimated 2013 credit as well as the recording of the credit for 2012 in the three-month period ending March 31, 2013. Also contributing to the decrease in the effective tax rate is a reduction in the state tax rate due to law changes and the impact of a current period foreign rate differential for certain of our foreign operations, which had a favorable impact during the three months ended March 31, 2013 compared to an unfavorable impact during the comparable 2012 period. These decreases were partially offset by the impact of certain excess golden parachute payments. During the three months ended March 31, 2012, the effective tax rate benefited from the favorable impact of certain excess golden parachute payments. This benefit did not reoccur during the three months ended March 31, 2013.