Income Taxes	3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]
Income Taxes	12. Income Taxes We and our subsidiaries are subject to U.S. federal income tax as well as income tax of numerous state and foreign jurisdictions. We are generally no longer subject to U.S. federal tax examinations for taxable years before 2008 and with limited exceptions, state and foreign income tax examinations for taxable years before 2004. We recognize potential accrued interest and penalties related to unrecognized tax benefits in Income Tax Expense. In addition to the liability of $3,476 for unrecognized tax benefits as of March 31, 2012 was approximately $406 for accrued interest and penalties. The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate as of March 31, 2012 was $3,258. To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be revised and reflected as an adjustment of the Income Tax Expense. Unrecognized tax benefits were reduced by $61 during the first three months of 2012 for expiration of the statute of limitations in various jurisdictions. We are currently under examination by the Internal Revenue Service for the 2009 tax year. Although the outcome of this matter cannot currently be determined, we believe adequate provision has been made for any potential unfavorable financial statement impact. We are currently undergoing income tax examinations in various foreign jurisdictions covering 2004 to 2008 for which settlement is expected prior to year end. Although the final outcome of these examinations cannot be currently determined, we believe that we have adequate reserves with respect to these examinations.

Income Taxes

3 Months Ended

Mar. 31, 2012

12. Income Taxes

We and our subsidiaries are subject to U.S. federal income tax as well as income tax of numerous state and foreign jurisdictions. We are generally no longer subject to U.S. federal tax examinations for taxable years before 2008 and with limited exceptions, state and foreign income tax examinations for taxable years before 2004.

We recognize potential accrued interest and penalties related to unrecognized tax benefits in Income Tax Expense. In addition to the liability of $3,476 for unrecognized tax benefits as of March 31, 2012 was approximately $406 for accrued interest and penalties. The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate as of March 31, 2012 was $3,258. To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be revised and reflected as an adjustment of the Income Tax Expense.

Unrecognized tax benefits were reduced by $61 during the first three months of 2012 for expiration of the statute of limitations in various jurisdictions.

We are currently under examination by the Internal Revenue Service for the 2009 tax year. Although the outcome of this matter cannot currently be determined, we believe adequate provision has been made for any potential unfavorable financial statement impact. We are currently undergoing income tax examinations in various foreign jurisdictions covering 2004 to 2008 for which settlement is expected prior to year end. Although the final outcome of these examinations cannot be currently determined, we believe that we have adequate reserves with respect to these examinations.