Income Taxes	9 Months Ended
Sep. 30, 2012
Income Tax Expense (Benefit) [Abstract]
Income Taxes	Income Taxes The Company calculates an effective income tax rate each quarter based upon forecasted annual income by jurisdiction, statutory tax rates and other tax-related items. The impact of discrete items is recognized in the interim period in which they occur. The effective tax rates for the three months ended September 30, 2012 and September 30, 2011 were 39.7% and 34.3%, respectively. The effective income tax rate for both periods was unfavorably impacted by losses in foreign jurisdictions on which no tax benefit has been recognized. The rate for the three months ended September 30, 2011 was favorably impacted primarily by Federal income tax credits under the Hiring Incentives to Restore Employment ("HIRE") Act . The effective tax rates for the nine months ended September 30, 2012 and September 30, 2011 were 40.3% and 24.4%, respectively. The effective income tax rate for both periods was unfavorably impacted by losses in foreign jurisdictions and reductions to deferred tax assets for stock-based compensation grants that expired with no corresponding tax benefit. In addition, the 2011 rate was favorably impacted by a reduction in the fine reserve for the United Kingdom's Office of Fair Trading ("OFT") matter and Federal income tax credits under the HIRE Act.

Income Taxes

9 Months Ended

Sep. 30, 2012

Income Tax Expense (Benefit) [Abstract]

The Company calculates an effective income tax rate each quarter based upon forecasted annual income by jurisdiction, statutory tax rates and other tax-related items. The impact of discrete items is recognized in the interim period in which they occur.

The effective tax rates for the three months ended September 30, 2012 and September 30, 2011 were 39.7% and 34.3%, respectively. The effective income tax rate for both periods was unfavorably impacted by losses in foreign jurisdictions on which no tax benefit has been recognized. The rate for the three months ended September 30, 2011 was favorably impacted primarily by Federal income tax credits under the Hiring Incentives to Restore Employment ("HIRE") Act .

The effective tax rates for the nine months ended September 30, 2012 and September 30, 2011 were 40.3% and 24.4%, respectively. The effective income tax rate for both periods was unfavorably impacted by losses in foreign jurisdictions and reductions to deferred tax assets for stock-based compensation grants that expired with no corresponding tax benefit. In addition, the 2011 rate was favorably impacted by a reduction in the fine reserve for the United Kingdom's Office of Fair Trading ("OFT") matter and Federal income tax credits under the HIRE Act.