Accounts Receivable and Allowance for Doubtful Receivables - Allowance for Doubtful Receivables (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2023	May 31, 2022
Receivables [Abstract]
Balance at beginning of period	$ 1,709	$ 1,200
Bad debt expense, net of recoveries	135	180
Accounts written off	(25)	(45)
Balance at end of period	$ 1,819	$ 1,335