Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Feb. 28, 2023	Feb. 28, 2022
Statement of Financial Position [Abstract]
Receivables allowance	$ (1,678)	$ (843)
Less: accumulated depreciation	(178,961)	(161,006)
Accumulated amortization	$ (168,574)	$ (150,309)
Cumulative preferred stock, par value (usd per share)	$ 1.00	$ 1.00
Cumulative preferred stock, non-voting, authorized shares (in shares)	2,000,000	2,000,000
Cumulative preferred stock, non-voting, issued shares (in shares)	0	0
Common stock, par value (usd per share)	$ 0.10	$ 0.10
Common stock, authorized shares (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	23,994,405	23,800,305
Common stock, shares outstanding (in shares)	23,994,405	23,800,305