CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Feb. 28, 2021	Feb. 29, 2020
Statement Of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	35,229,000	34,322,000
Common stock, shares outstanding	35,229,000	34,322,000