v2.3.0.11
Income Taxes
3 Months Ended
Apr. 30, 2011
Income Taxes  
Income Taxes

8.  Income Taxes

 

We file a U.S. federal income tax return and income tax returns in various states and foreign jurisdictions. We are no longer subject to U.S. federal income tax examinations for years before 2010 and, with few exceptions, are no longer subject to state and local or non-U.S. income tax examinations by tax authorities for years before 2003.

 

We accrue for the effects of uncertain tax positions and the related potential penalties and interest.

 

It is reasonably possible that the amount of the unrecognized tax benefit liabilities with respect to our other unrecognized tax positions will increase or decrease during the next twelve months; however an estimate of the amount or range of the change cannot be made at this time.