Benefit Plans (Components Of Net Pension Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Defined Benefit Plan Disclosure [Line Items]
Total net pension (benefit) expense	$ (2,068)	$ (945)	$ (1,107)
Total net actuarial (gain) loss (1)	(22,517)	(33,913)	68,861
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Total net pension (benefit) expense	(2,493)	(1,378)	(1,595)
Total net actuarial (gain) loss (1)	(21,941)	(33,703)	67,385
Restoration Plan
Defined Benefit Plan Disclosure [Line Items]
Total net pension (benefit) expense	425	433	488
Total net actuarial (gain) loss (1)	$ (576)	$ (210)	$ 1,476