CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 31, 2014	May 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 8,032	$ 8,506
Foreign currency translation adjustment, net of deferred taxes	980	150
Comprehensive income	$ 9,012	$ 8,656