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Benefit Plans (Schedule Of Fair Value Of Plan Assets) (Details) - USD ($)
$ in Thousands
Feb. 28, 2021
Feb. 29, 2020
Defined Benefit Plan Disclosure [Line Items]    
Plan assets $ 209,773 $ 168,835
Equity securities – international | Level 1 | Mutual funds (Level 1):    
Defined Benefit Plan Disclosure [Line Items]    
Plan assets 25,741 20,410
Short-term Investments | Collective funds (NAV):    
Defined Benefit Plan Disclosure [Line Items]    
Plan assets 1,633 420
Equity securities | Collective funds (NAV):    
Defined Benefit Plan Disclosure [Line Items]    
Plan assets 131,039 104,823
Fixed income securities | Collective funds (NAV):    
Defined Benefit Plan Disclosure [Line Items]    
Plan assets $ 51,360 $ 43,182