Benefit Plans (Schedule Of Fair Value Of Plan Assets) (Details) - USD ($) $ in Thousands	Feb. 29, 2020	Feb. 28, 2019
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 168,835	$ 166,020
Investment payables, net
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	(85)
Equity securities | Collective funds (NAV):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	104,823	0
Equity securities | Level 1 | Mutual funds (Level 1):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	106,367
Equity securities – international | Level 1 | Mutual funds (Level 1):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	20,410	20,481
Fixed income securities | Collective funds (NAV):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	43,182	0
Fixed income securities | Level 1 | Mutual funds (Level 1):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	38,038
Short-term Investments | Collective funds (NAV):
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 420	$ 1,219