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Income Taxes	9 Months Ended
Income Taxes	Aug. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes [Text Block]	Income Taxes Our effective tax rate is estimated based upon the effective tax rate expected to be applicable for the full year. Our effective tax rate for the three and nine months ended August 31, 2014 was 24.6 percent and 23.1 percent, respectively, compared to 0.5 percent and 17.2 percent for the same periods of 2013. The lower tax rate in 2013 reflects the impact of discrete period items, including certain one-time expenses related to the Polk acquisition.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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