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Retirement Plans (Components Of Net Pension Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Aug. 31, 2017 | Aug. 31, 2016 | Aug. 31, 2017 | Aug. 31, 2016
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net pension expense | $ 169 | $ 204 | $ 338 | $ 406
Pension Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net pension expense | 52 | 84 | 104 | 166
Restoration Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net pension expense | $ 117 | $ 120 | $ 234 | $ 240

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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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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Details
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- Details
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