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Benefit Plans (Components Of Net Pension Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Feb. 28, 2021 | Feb. 29, 2020 | Feb. 28, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total net pension (benefit) expense | $ (945) | $ (1,107) | $ (207)
Total net actuarial (gain) loss (1) | (33,913) | 68,861 | 4,560
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total net pension (benefit) expense | (1,378) | (1,595) | (681)
Total net actuarial (gain) loss (1) | (33,703) | 67,385 | 4,478
Restoration Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total net pension (benefit) expense | 433 | 488 | 474
Total net actuarial (gain) loss (1) | $ (210) | $ 1,476 | $ 82

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