Condensed Consolidated Statement of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance, beginning balance (shares) at Feb. 28, 2023		24,912
Balance, beginning balance at Feb. 28, 2023	$ 619,738	$ 24,912	$ 93,357	$ 506,042	$ (4,573)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	9,488		9,488
Common stock issued under stock-based plans and related income tax expense (shares)		122
Common stock issued under stock-based plans and related tax expense	(1,689)	$ 122	(1,811)
Common stock issued under employee stock purchase plan (shares)		68
Common stock issued under employee stock purchase plan	2,364	$ 68	2,296
Dividends on Series A Preferred Stock	(14,400)
Cash dividends paid on common shares	(17,018)			(17,018)
Net income available to common shareholders	101,607			101,607
Other comprehensive income (loss)	679			0	679
Balance, ending balance (shares) at Feb. 29, 2024		25,102
Balance, ending balance at Feb. 29, 2024	700,769	$ 25,102	103,330	576,231	(3,894)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	13,251		13,251
Common stock issued under stock-based plans and related income tax expense (shares)		137
Common stock issued under stock-based plans and related tax expense	(5,229)	$ 137	(5,366)
Common stock issued under employee stock purchase plan (shares)		74
Common stock issued under employee stock purchase plan	2,795	$ 74	2,721
Secondary public offering and issuance of additional common stock (in shares)		4,600
Secondary public offering and issuance of additional common stock	308,668	$ 4,600	304,068
Dividends on Series A Preferred Stock	(1,200)
Cash dividends paid on common shares	(19,508)			(19,508)
Redemption premium on Series A Preferred Stock	(75,198)			(75,198)
Net income available to common shareholders	128,833			128,833
Other comprehensive income (loss)	(7,686)
Balance, ending balance (shares) at Feb. 28, 2025		29,913
Balance, ending balance at Feb. 28, 2025	1,045,495	$ 29,913	418,004	609,158	(11,580)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	14,824		14,824
Common stock issued under stock-based plans and related income tax expense (shares)		110
Common stock issued under stock-based plans and related tax expense	(5,096)	$ 110	(5,206)
Common stock issued under employee stock purchase plan (shares)		58
Common stock issued under employee stock purchase plan	3,591	$ 58	3,533
Repurchase and retirement of treasury shares (shares)		(201)
Repurchase and retirement of common stock	(20,000)	$ (201)		(19,799)
Cash dividends paid on common shares	(23,075)			(23,075)
Net income available to common shareholders	317,260			317,260
Other comprehensive income (loss)	4,032
Balance, ending balance (shares) at Feb. 28, 2026		29,880
Balance, ending balance at Feb. 28, 2026	$ 1,337,031	$ 29,880	$ 431,155	$ 883,544	$ (7,548)