The Company and Basis of Presentation (Details) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2025 USD ($) shares	Aug. 31, 2024 USD ($) shares	Aug. 31, 2025 USD ($) segment shares	Aug. 31, 2024 USD ($) shares	May 31, 2025 USD ($) shares	Feb. 28, 2025 USD ($) shares	May 31, 2024 USD ($) shares	Feb. 29, 2024 USD ($) shares
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of operating segments | segment			3
Common stock issued under stock-based plans and related tax expense	$ (411)	$ (400)	$ (5,007)	$ (4,967)
Share-based compensation	4,339	4,903	9,424	7,438
Secondary public offering and issuance of additional common stock		(55)		308,668
Dividends on Series A Preferred Stock				(1,200)
Dividends, Cash	(6,012)	(5,076)	(11,097)	(9,343)
Redemption premium on Series A Preferred Stock				(75,198)
Net income (loss)	89,346	35,419	260,254	75,021
Other comprehensive income	(585)	(3,836)	1,906	(3,001)
Stockholders' Equity Attributable to Parent	1,303,031	999,756	1,303,031	999,756	$ 1,214,298	$ 1,045,495	$ 967,232	$ 700,769
Capital in Excess of Par Value
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Common stock issued under stock-based plans and related tax expense	(426)	(420)	(5,116)	(5,099)
Share-based compensation	4,339	4,903	9,424	7,438
Secondary public offering and issuance of additional common stock		(55)		304,068
Stockholders' Equity Attributable to Parent	424,333	411,263	424,333	411,263	$ 418,399	$ 418,004	$ 405,309	$ 103,330
Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Common stock issued under stock-based plans and related tax expense	$ 15	$ 20	$ 109	$ 132
Common stock issued under stock-based plans and related income tax expense (shares) | shares	15	20	109	132
Secondary public offering and issuance of additional common stock				$ 4,600
Secondary public offering and issuance of additional common stock (in shares) | shares				4,600
Shares, Issued | shares	30,057	29,877	30,057	29,877	30,007	29,913	29,814	25,102
Stockholders' Equity Attributable to Parent	$ 30,057	$ 29,877	$ 30,057	$ 29,877	$ 30,007	$ 29,913	$ 29,814	$ 25,102
Retained Earnings
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Dividends on Series A Preferred Stock				(1,200)
Dividends, Cash	(6,012)	(5,076)	(11,097)	(9,343)
Redemption premium on Series A Preferred Stock				(75,198)
Net income (loss)	89,346	35,419	260,254	75,021
Stockholders' Equity Attributable to Parent	858,315	565,511	858,315	565,511	774,981	609,158	535,168	576,231
Accumulated Other Comprehensive Income (Loss)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other comprehensive income	(585)	(3,836)	1,906	(3,001)
Stockholders' Equity Attributable to Parent	$ (9,674)	$ (6,895)	$ (9,674)	$ (6,895)	$ (9,089)	$ (11,580)	$ (3,059)	$ (3,894)
AIS Joint Venture
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage of investment	40.00%		40.00%