Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 30, 2014	Feb. 28, 2014
Consolidated Condensed Balance Sheets
Receivables - principally trade, allowances (in dollars)	$ 6,248	$ 4,679
Property and equipment, accumulated depreciation (in dollars)	81,217	71,516
Other intangible assets, accumulated amortization (in dollars)	113,093	94,698
Other assets, accumulated amortization (in dollars)	$ 8,664	$ 6,781
Cumulative preferred stock, non-voting, par (in dollars per share)	$ 1.00	$ 1.00
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	28,425,523	32,272,519
Common stock, shares outstanding	28,425,523	32,272,519