Pension Plan - Schedule of Accumulated Benefit Obligation, Change in PBO, Change in Pension Plan Assets, Funded Status, and Reconciliation to Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Change in benefit obligation
Projected benefit obligation at beginning of year	$ 66,018	$ 69,536
Service cost	1,075	1,271	$ 1,088
Interest cost	1,682	1,754	2,254
Actuarial (gain) loss	(151)	638
Other assumption change	155	(347)
Benefits paid	(4,148)	(5,126)
Settlement	(121)	432
Projected benefit obligation at end of year	64,752	66,018	69,536
Change in plan assets:
Fair value of plan assets at beginning of year	59,719	60,600
Company contributions	1,000	0
Gain on plan assets	2,452	4,245
Benefits paid	(2,452)	(4,245)
Fair value of plan assets at end of year	59,023	59,719	$ 60,600
Unfunded status	(5,729)	(6,299)
Accumulated benefit obligation at end of year	$ 60,216	$ 60,981