Income Taxes

3 Months Ended

Mar. 31, 2012

Income Taxes

Income Taxes

13.  Income Taxes

The Company performs a quarterly review of the annual effective tax rate and makes changes if necessary based on new information or events. The estimated annual effective tax rate is forecasted quarterly using actual historical information and forward-looking estimates. The estimated annual effective tax rate may fluctuate due to changes in forecasted annual operating income; changes in the forecasted mix of earnings by country; changes to the valuation allowance for deferred tax assets (such changes would be recorded discretely in the quarter in which they occur); changes to actual or forecasted permanent book to tax differences (non-deductible expenses); impacts from future tax settlements with state, federal or foreign tax authorities (such changes would be recorded discretely in the quarter in which they occur); or impacts from tax law changes. To the extent such changes impact deferred tax assets/liabilities, these changes would generally be recorded discretely in the quarter in which they occur.  Additionally, the annual effective tax rate differs from the statutory U.S. Federal tax rate of 35% primarily because of valuation allowances in some jurisdictions and varying non-U.S. tax rates.