Income Taxes	3 Months Ended
Mar. 31, 2012
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The company had an effective tax rate of 20.7% on earnings before tax for the three month period ended March 31, 2012 compared to an expected rate at the US statutory rate of 35%. The company's effective tax rate for the three months ended March 31, 2012 was lower than the U.S. federal statutory rate, principally due to foreign taxes recognized at rates below the U.S. statutory rate. The company also benefited year to date from countries with valuation allowances included in the combined effective rate due to expected current year profits. The company had an effective tax rate of 25.5% on earnings before tax for the three month period ended March 31, 2011, respectively, compared to an expected rate at the U.S. statutory rate of 35%. The company's effective tax rate for the three months ended March 31, 2011 was lower than the U.S. federal statutory rate as a result of foreign earnings taxed at an effective rate lower than the US statutory rate and a net profit for the quarter related to countries with tax valuation allowances. The company had a domestic profit in the first quarter of 2012, but continued to be in a three-year cumulative loss position in the U.S. principally as a result of recording pre-tax expenses in prior periods related to the extinguishment of convertible debt at a premium and the write-off of goodwill. As a result of the loss position, the majority of the U.S. deferred tax assets continue to be subject to a valuation allowance.

Income Taxes

3 Months Ended

Mar. 31, 2012

The company had an effective tax rate of 20.7% on earnings before tax for the three month period ended March 31, 2012 compared to an expected rate at the US statutory rate of 35%. The company's effective tax rate for the three months ended March 31, 2012 was lower than the U.S. federal statutory rate, principally due to foreign taxes recognized at rates below the U.S. statutory rate. The company also benefited year to date from countries with valuation allowances included in the combined effective rate due to expected current year profits. The company had an effective tax rate of 25.5% on earnings before tax for the three month period ended March 31, 2011, respectively, compared to an expected rate at the U.S. statutory rate of 35%. The company's effective tax rate for the three months ended March 31, 2011 was lower than the U.S. federal statutory rate as a result of foreign earnings taxed at an effective rate lower than the US statutory rate and a net profit for the quarter related to countries with tax valuation allowances. The company had a domestic profit in the first quarter of 2012, but continued to be in a three-year cumulative loss position in the U.S. principally as a result of recording pre-tax expenses in prior periods related to the extinguishment of convertible debt at a premium and the write-off of goodwill. As a result of the loss position, the majority of the U.S. deferred tax assets continue to be subject to a valuation allowance.