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, 2023	Feb. 28, 2022	Feb. 28, 2021
Change in benefit obligation
Projected benefit obligation at beginning of year	$ 64,752	$ 66,018
Service cost	944	1,075	$ 1,271
Interest cost	1,967	1,682	1,754
Actuarial (gain) loss	12,824	(151)
Other assumption change	(69)	155
Benefits paid	(4,885)	(4,148)
Settlement	135	(121)
Projected benefit obligation at end of year	49,888	64,752	66,018
Change in plan assets:
Fair value of plan assets at beginning of year	59,023	59,719
Company contributions	2,000	1,000
Gain on plan assets	6,896	2,452
Benefits paid	(6,896)	(2,452)
Fair value of plan assets at end of year	49,242	59,023	$ 59,719
Unfunded status	(646)	(5,729)
Accumulated benefit obligation at end of year	$ 46,904	$ 60,216