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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Aug. 31, 2023
May 31, 2023
Statement of Financial Position [Abstract]    
Accounts receivable, allowances $ 1,878 $ 2,150
Preferred stock, par value (in usd per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in usd per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 75,000,000 75,000,000
Common stock, shares issued (in shares) 40,586,641 39,981,422
Common stock, shares outstanding (in shares) 40,216,641 39,611,422
Treasury stock, shares (in shares) 370,000 370,000