Income Taxes	6 Months Ended
Jun. 30, 2012
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are subject to U.S. federal income tax and various state, local, and international income taxes in numerous jurisdictions. Our domestic and international tax liabilities are subject to the allocation of revenue and expenses in different jurisdictions and the timing of recognizing revenue and expenses. Additionally, the amount of income taxes paid is subject to our interpretation of applicable tax laws in the jurisdictions in which we file. We currently file income tax returns in the U.S., and all foreign jurisdictions in which we have entities, which are periodically under audit by federal, state, and international tax authorities. These audits can involve complex matters that may require an extended period of time for resolution. There are no income tax examinations currently in process. Although the outcome of open tax audits is uncertain, in management’s opinion, adequate provisions for income taxes have been made. If actual outcomes differ materially from these estimates, they could have a material impact on our financial condition and results of operations. Differences between actual results and assumptions, or changes in assumptions in future periods are recorded in the period they become known. To the extent additional information becomes available prior to resolution; such accruals are adjusted to reflect probable outcomes. Our effective tax rate is impacted by earnings being realized in countries which have lower statutory rates.

Income Taxes

6 Months Ended

Jun. 30, 2012

We are subject to U.S. federal income tax and various state, local, and international income taxes in numerous jurisdictions. Our domestic and international tax liabilities are subject to the allocation of revenue and expenses in different jurisdictions and the timing of recognizing revenue and expenses. Additionally, the amount of income taxes paid is subject to our interpretation of applicable tax laws in the jurisdictions in which we file.

We currently file income tax returns in the U.S., and all foreign jurisdictions in which we have entities, which are periodically under audit by federal, state, and international tax authorities. These audits can involve complex matters that may require an extended period of time for resolution. There are no income tax examinations currently in process. Although the outcome of open tax audits is uncertain, in management’s opinion, adequate provisions for income taxes have been made. If actual outcomes differ materially from these estimates, they could have a material impact on our financial condition and results of operations. Differences between actual results and assumptions, or changes in assumptions in future periods are recorded in the period they become known. To the extent additional information becomes available prior to resolution; such accruals are adjusted to reflect probable outcomes. Our effective tax rate is impacted by earnings being realized in countries which have lower statutory rates.