Statement of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Deferred tax adjusted to foreign currency translation	$ 6,087	$ 3,254	$ 2,273
Deferred tax adjusted to pension	$ 1,276	$ 138	$ 3,718
Dividends paid per share	$ 2.20	$ 0.70	$ 0.70
Retained Earnings [Member]
Dividends paid per share	$ 2.20	$ 0.70	$ 0.70
Accumulated Other Comprehensive Income (Loss) [Member]
Deferred tax adjusted to foreign currency translation	$ 6,087	$ 3,254	$ 2,273
Deferred tax adjusted to pension	$ 1,276	$ 138	$ 3,718