Consolidated Statements of Shareholder's Equity Statement - USD ($) $ in Thousands	Total	Common Shares	Preferred Stock	Additional Paid-In Capital	Retained Earnings
Balance, shares at Feb. 28, 2023		14,048
Balance at Feb. 28, 2023	$ 1,871,458	$ 0	$ 0	$ 1,878,774	$ (7,316)
Preferred stock, balance, shares at Feb. 28, 2023			400
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	22,770				22,770
Balance, shares at May. 31, 2023		14,048
Balance at May. 31, 2023	1,894,228	$ 0	$ 0	1,878,774	15,454
Preferred stock, balance, shares at May. 31, 2023			400
Balance, shares at Feb. 29, 2024		15,564
Balance at Feb. 29, 2024	$ 2,133,774	$ 0	$ 0	2,078,774	55,000
Preferred stock, balance, shares at Feb. 29, 2024	400		400
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 16,081				16,081
Balance, shares at May. 31, 2024	15,564	15,564
Balance at May. 31, 2024	$ 2,149,855	$ 0	$ 0	$ 2,078,774	$ 71,081
Preferred stock, balance, shares at May. 31, 2024	400		400