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Long-Term Debt - Interest rates (Details) - Credit Agreement | 3 Months Ended
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May 31, 2017 | May 31, 2016
Minimum |  |
Revolving Line of Credit |  |
Interest rate range during each year (as a percent) | 2.30% | 1.90%
Maximum |  |
Revolving Line of Credit |  |
Interest rate range during each year (as a percent) | 4.50% | 4.00%

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- Definition The effective interest rate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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