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Income Taxes (Details) (USD $) | 3 Months Ended
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May 31, 2014 | May 31, 2013
Income Taxes |  |
Effective income tax rate (as a percent) | 17.00% | 19.00%
Asset impairment charges | $ 9,000,000 | $ 12,049,000
Tax benefit related to asset impairment charges | $ 860,000 | $ 20,000

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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