Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 285,267	$ 296,696	$ 722,023	$ 301,674
Other comprehensive income (loss), net of taxes:
Net change in retirement benefit plan unrecognized actuarial losses	658	728	1,317	1,456
Net change in cash flow hedge unrecognized losses	2,753	4,251	5,031	(11,811)
Other comprehensive income (loss), net of taxes	3,411	4,979	6,348	(10,355)
TOTAL COMPREHENSIVE INCOME	$ 288,678	$ 301,675	$ 728,371	$ 291,319