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Benefit Plans (Benefit Plan Information) (Details) - USD ($) $ in Thousands	Feb. 28, 2021	Feb. 29, 2020
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 209,773	$ 168,835
Projected benefit obligation	307,992	310,939
Funded status recognized	(98,219)	(142,104)
Current liability	(639)	(615)
Noncurrent liability	(97,580)	(141,489)
Net amount recognized	(98,219)	(142,104)
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Plan assets	209,773	168,835
Projected benefit obligation	295,930	298,441
Funded status recognized	(86,157)	(129,606)
Current liability	0	0
Noncurrent liability	(86,157)	(129,606)
Net amount recognized	(86,157)	(129,606)
Restoration Plan
Defined Benefit Plan Disclosure [Line Items]
Plan assets	0	0
Projected benefit obligation	12,062	12,498
Funded status recognized	(12,062)	(12,498)
Current liability	(639)	(615)
Noncurrent liability	(11,423)	(11,883)
Net amount recognized	$ (12,062)	$ (12,498)

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- Definition

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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