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Income Taxes
3 Months Ended
Mar. 31, 2014
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

The Company calculates an effective income tax rate each quarter using the estimated annual effective rate method 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. Discrete items and the mix of domestic and foreign pre-tax income and losses with no tax benefit may significantly impact the interim period income tax provision and increase the volatility of the interim period effective tax rate at low levels of pre-tax income.
The effective tax rates for the three months ended March 31, 2014 and 2013 were 55.7% and 47.5%, respectively. During the three months ended March 31, 2014, the Company recorded a $0.5 million charge for the write-off of deferred tax assets related to the forfeiture of the outstanding equity awards due to the separation of the CEO.