Pension Plan - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Nov. 30, 2024	Feb. 29, 2024
Defined Benefit Plan Disclosure [Line Items]
Employees covered under noncontributory Pension Plan	12.00%
Compensation period preceding retirement and termination	5 years
Period used for calculating Pension Plan liability	25 years
Contribution to avoid a Pension Benefit Guaranty Corporation variable premium	$ 1.2	$ 1.2
Unfunded pension liability	0.1
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions	1.0
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contributions	$ 3.0