Condensed Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss
Balance (shares) at Feb. 28, 2021		25,108
Balance at Feb. 28, 2021	$ 623,292	$ 25,108	$ 75,979	$ 547,289	$ (25,084)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	1,811		1,811
Common stock issued under stock-based plans and related income tax expense (shares)		89
Common stock issued under stock-based plans and related income tax expense	(2,101)	$ 89	(2,190)
Repurchase and retirement of treasury shares (shares)		(126)
Repurchase and retirement of treasury shares	(6,264)	$ (126)		(6,138)
Cash dividends paid	(4,245)			(4,245)
Net income	22,337			22,337
Foreign currency translation	2,581			(70)	2,651
Balance (shares) at May. 31, 2021		25,071
Balance at May. 31, 2021	637,411	$ 25,071	75,600	559,173	(22,433)
Balance (shares) at Feb. 28, 2022		24,688
Balance at Feb. 28, 2022	667,365	$ 24,688	85,847	584,154	(27,324)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	1,998		1,998
Common stock issued under stock-based plans and related income tax expense (shares)		100
Common stock issued under stock-based plans and related income tax expense	(2,313)	$ 100	(2,413)
Cash dividends paid	(4,192)			(4,192)
Net income	24,077			24,077
Foreign currency translation	624				624
Balance (shares) at May. 31, 2022		24,788
Balance at May. 31, 2022	$ 687,559	$ 24,788	$ 85,432	$ 604,039	$ (26,700)