Consolidated Condensed Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 46,095	$ 44,017	$ 86,789	$ 81,809
Other comprehensive income (loss), net of tax:
Cash flow hedge activity - interest rate swaps	(3,168)	101	(7,161)	205
Cash flow hedge activity - foreign currency contracts	424	478	1,215	3,811
Total other comprehensive income (loss), net of tax	(2,744)	579	(5,946)	4,016
Comprehensive income	$ 43,351	$ 44,596	$ 80,843	$ 85,825