Net Earnings Per Share (Basic And Dilutive Net Earnings Per Share Reconciliations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Aug. 31, 2023	May 31, 2023	Aug. 31, 2022	May 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Net earnings	$ 118,635	$ 228,298	$ 125,905	$ 252,265	$ 346,933	$ 378,170
Weighted average common shares outstanding, shares	158,479		158,801		158,298	159,556
Weighted average common shares and dilutive potential common shares, shares	159,238		160,218		158,900	161,015
Basic net earnings per share (in dollars per share)	$ 0.75		$ 0.79		$ 2.19	$ 2.37
Diluted net earnings per share (in dollars per share)	$ 0.75		$ 0.79		$ 2.18	$ 2.35
Stock options
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	581		1,125		373	1,151
Stock-settled stock units and awards
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	178		292		229	308