Shareholders' Equity - Changes in Shareholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		94 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			$ 298,546
Beginning Balance, Shares			30,053,443
Net loss	$ 6,784	$ 11,046	$ (10,094)	$ 20,217
Foreign currency translation, net of deferred tax of $6,087		$ (2,611)	9,940	$ (3,275)
Dividends paid ($1.85 per share)			(48,187)
Stock based compensation			679
Stock based compensation allocated to loss on sale of discontinued operations			112
Exercise of stock options and restricted stock			2,910
Stock repurchases			$ (1,786)
Stock repurchases, shares			(103,705)		(822,216)
Ending Balance, Amount	$ 252,120		$ 252,120		$ 252,120
Ending Balance, Shares	30,053,443		30,053,443		30,053,443
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			$ 75,134
Beginning Balance, Shares			30,053,443
Ending Balance, Amount	$ 75,134		$ 75,134		$ 75,134
Ending Balance, Shares	30,053,443		30,053,443		30,053,443
Additional Paid-in Capital [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			$ 121,597
Stock based compensation			679
Stock based compensation allocated to loss on sale of discontinued operations			112
Exercise of stock options and restricted stock			(1,810)
Ending Balance, Amount	$ 120,578		120,578		$ 120,578
Retained Earnings [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			206,105
Net loss			(10,094)
Dividends paid ($1.85 per share)			(48,187)
Ending Balance, Amount	147,824		147,824		147,824
Accumulated Other Comprehensive Income (Loss) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			(27,285)
Foreign currency translation, net of deferred tax of $6,087			9,940
Ending Balance, Amount	(17,345)		(17,345)		(17,345)
Treasury Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Amount			$ (77,005)
Beginning Balance, Treasury Stock, Shares			(4,437,005)
Exercise of stock options and restricted stock			$ 4,720
Exercise of stock options and restricted stock, shares			282,988
Stock repurchases			$ (1,786)
Stock repurchases, shares			(103,705)
Ending Balance, Amount	$ (74,071)		$ (74,071)		$ (74,071)
Ending Balance, Treasury Stock, Shares	(4,257,722)		(4,257,722)		(4,257,722)