CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Beginning balance at Feb. 28, 2011	$ 347,683	$ 75,134	$ 121,306	$ 234,636	$ (8,448)	$ (74,945)
Beginning balance, treasury stock, shares at Feb. 28, 2011						(4,197,567)
Beginning balance common stock, shares at Feb. 28, 2011		30,053,443
Net earnings	31,358			31,358
Foreign currency translation, net of deferred tax of $436, $279 and $910 respectively	(705)				(705)
Unrealized gain on derivative instruments, net of deferred tax benefit of $230	372				372
Adjustment to pension, net of deferred tax of $2,476, $1,031, and $2435 respectively	(4,004)				(4,004)
Dividends declared ($.62, $.88 and $.525 per share respectively)	(16,132)			(16,132)
Excess tax benefit of stock option exercises and restricted stock grants	63		63
Stock based compensation	1,025		1,025
Exercise of stock options and restricted stock grants	217		(1,004)			1,221
Exercise of stock options and restricted stock grants, shares						67,999
Stock repurchases	(2)					(2)
Stock repurchases, shares	(100)					(100)
Ending balance at Feb. 29, 2012	359,875	75,134	121,390	249,862	(12,785)	(73,726)
Ending balance treasury stock, shares at Feb. 29, 2012						(4,129,668)
Ending balance common stock, shares at Feb. 29, 2012		30,053,443
Net earnings	24,715			24,715
Foreign currency translation, net of deferred tax of $436, $279 and $910 respectively	(451)				(451)
Adjustment to pension, net of deferred tax of $2,476, $1,031, and $2435 respectively	(1,667)				(1,667)
Dividends declared ($.62, $.88 and $.525 per share respectively)	(22,864)			(22,864)
Excess tax benefit of stock option exercises and restricted stock grants	66		66
Stock based compensation	1,459		1,459
Exercise of stock options and restricted stock grants	85		(729)			814
Exercise of stock options and restricted stock grants, shares						45,078
Stock repurchases	(2)					(2)
Stock repurchases, shares	(175)					(175)
Ending balance at Feb. 28, 2013	361,216	75,134	122,186	251,713	(14,903)	(72,914)
Ending balance treasury stock, shares at Feb. 28, 2013						(4,084,765)
Ending balance common stock, shares at Feb. 28, 2013	30,053,443	30,053,443
Net earnings	13,189			13,189
Foreign currency translation, net of deferred tax of $436, $279 and $910 respectively	(1,486)				(1,486)
Adjustment to pension, net of deferred tax of $2,476, $1,031, and $2435 respectively	3,976				3,976
Dividends declared ($.62, $.88 and $.525 per share respectively)	(13,765)			(13,765)
Excess tax benefit of stock option exercises and restricted stock grants	17		17
Stock based compensation	1,532		1,532
Exercise of stock options and restricted stock grants	94		(1,218)			1,312
Exercise of stock options and restricted stock grants, shares						73,503
Stock repurchases	(1,838)					(1,838)
Stock repurchases, shares	(112)					(120,014)
Ending balance at Feb. 28, 2014	$ 362,935	$ 75,134	$ 122,517	$ 251,137	$ (12,413)	$ (73,440)
Ending balance treasury stock, shares at Feb. 28, 2014						(4,131,276)
Ending balance common stock, shares at Feb. 28, 2014	30,053,443	30,053,443