Income Taxes	6 Months Ended
May 31, 2011
Income Taxes [Abstract]
Income Taxes	Note 4: Income Taxes We provide for deferred income taxes resulting from temporary differences between financial and taxable income. We record valuation allowances to reduce deferred tax assets to the amount that is more likely than not to be realized. We have not provided for U.S. income taxes on the undistributed earnings of non-U.S. subsidiaries, as these earnings have been permanently reinvested or would be principally offset by foreign tax credits. Our federal and state income tax returns are closed by statute for all years prior to fiscal 2007 and we are no longer subject to audit for those periods. Certain state taxing authorities are currently examining our income tax returns for years through fiscal 2008. Tax authorities for certain non-U.S. jurisdictions are also examining returns affecting unrecognized tax benefits, none of which are material to our balance sheet, cash flows or statements of operations. With some exceptions, we are generally no longer subject to tax examinations in non-U.S. jurisdictions for years prior to fiscal 2005. The U.S. research and development tax credit was retroactively reinstated in December 2010. As a result, in the first quarter of fiscal 2011, we recorded a tax benefit of $2.0 million related to qualifying research and development activities for the period January 2010 through November 2010. We believe that we have adequately provided for any reasonably foreseeable outcomes related to our tax audits and that any settlement will not have a material adverse effect on our consolidated financial position or results of operations. However, there can be no assurances as to the possible outcomes.

Income Taxes

6 Months Ended

May 31, 2011

Note 4: Income Taxes

We provide for deferred income taxes resulting from temporary differences between financial and taxable income. We record valuation allowances to reduce deferred tax assets to the amount that is more likely than not to be realized. We have not provided for U.S. income taxes on the undistributed earnings of non-U.S. subsidiaries, as these earnings have been permanently reinvested or would be principally offset by foreign tax credits.

Our federal and state income tax returns are closed by statute for all years prior to fiscal 2007 and we are no longer subject to audit for those periods. Certain state taxing authorities are currently examining our income tax returns for years through fiscal 2008. Tax authorities for certain non-U.S. jurisdictions are also examining returns affecting unrecognized tax benefits, none of which are material to our balance sheet, cash flows or statements of operations. With some exceptions, we are generally no longer subject to tax examinations in non-U.S. jurisdictions for years prior to fiscal 2005.

The U.S. research and development tax credit was retroactively reinstated in December 2010. As a result, in the first quarter of fiscal 2011, we recorded a tax benefit of $2.0 million related to qualifying research and development activities for the period January 2010 through November 2010.

We believe that we have adequately provided for any reasonably foreseeable outcomes related to our tax audits and that any settlement will not have a material adverse effect on our consolidated financial position or results of operations. However, there can be no assurances as to the possible outcomes.