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Consolidated Condensed Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Aug. 31, 2018
Feb. 28, 2018
Statement of Financial Position [Abstract]    
Receivables - principally trade, allowances (in dollars) $ 1,646 $ 2,912
Property and equipment, accumulated depreciation (in dollars) 122,234 115,202
Other intangible assets, accumulated amortization (in dollars) 174,831 167,354
Other assets, accumulated amortization (in dollars) $ 2,068 $ 2,022
Cumulative preferred stock, non-voting, par (in dollars per share) $ 1 $ 1
Cumulative preferred stock, non-voting, Authorized shares 2,000,000 2,000,000
Cumulative preferred stock, non-voting, issued shares 0 0
Common stock, par (in dollars per share) $ 0.10 $ 0.10
Common stock, authorized shares 50,000,000 50,000,000
Common stock, shares issued 26,380,366 26,575,634
Common stock, shares outstanding 26,380,366 26,575,634