Benefit Plans - 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. 29, 2024	Feb. 28, 2023	Feb. 28, 2022
Change in benefit obligation
Projected benefit obligation at beginning of year	$ 49,888	$ 64,752
Service cost	673	944	$ 1,075
Interest cost	2,456	1,967	1,682
Actuarial (gain) loss	1,572	(12,824)
Other assumption change	(122)	69
Benefits paid	(2,731)	(4,885)
Settlement	0	(135)
Projected benefit obligation at end of year	51,736	49,888	64,752
Change in plan assets:
Fair value of plan assets at beginning of year	49,242	59,023
Company contributions	1,200	2,000
Gain on plan assets	4,105	(6,896)
Fair value of plan assets at end of year	51,816	49,242	$ 59,023
Unfunded status	80	(646)
Accumulated benefit obligation at end of year	$ 48,438	$ 46,904