Income Taxes	9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate (provision for income taxes as a percentage of income from continuing operations before equity in earnings of affiliates and income taxes) was 35.0% and 36.9% for the three months ended September 30, 2013 and 2012, respectively, and 38.7% and 40.9% for the nine months ended September 30, 2013 and 2012, respectively. The change in the effective rate is primarily attributable to the impact of the effective state tax rate and research and development tax credits. Income taxes included in equity in earnings of affiliates were $3.5 million and $5.2 million for the three months ended September 30, 2013 and 2012, respectively, and $14.8 million and $18.7 million for the nine months ended September 30, 2013 and 2012, respectively. For the purpose of segment reporting, these amounts are not reflected at the segment level but are recorded within corporate. It is reasonably possible that the amount of the unrecognized benefit with respect to certain unrecognized tax positions could significantly increase or decrease within the next 12 months. These changes may be the result of items such as ongoing audits, competent authority proceedings related to transfer pricing, or the expiration of federal and state statutes of limitation for the assessment of taxes. The Company is currently under examination for tax years 2006 through 2011 by the U.S. and various state taxing authorities.

Income Taxes

9 Months Ended

Sep. 30, 2013

The effective income tax rate (provision for income taxes as a percentage of income from continuing operations before equity in earnings of affiliates and income taxes) was 35.0% and 36.9% for the three months ended September 30, 2013 and 2012, respectively, and 38.7% and 40.9% for the nine months ended September 30, 2013 and 2012, respectively. The change in the effective rate is primarily attributable to the impact of the effective state tax rate and research and development tax credits.

Income taxes included in equity in earnings of affiliates were $3.5 million and $5.2 million for the three months ended September 30, 2013 and 2012, respectively, and $14.8 million and $18.7 million for the nine months ended September 30, 2013 and 2012, respectively. For the purpose of segment reporting, these amounts are not reflected at the segment level but are recorded within corporate.

It is reasonably possible that the amount of the unrecognized benefit with respect to certain unrecognized tax positions could significantly increase or decrease within the next 12 months. These changes may be the result of items such as ongoing audits, competent authority proceedings related to transfer pricing, or the expiration of federal and state statutes of limitation for the assessment of taxes. The Company is currently under examination for tax years 2006 through 2011 by the U.S. and various state taxing authorities.