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, 2025	May 31, 2025	Aug. 31, 2024	May 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Net earnings	$ 95,378	$ 210,381	$ 132,809	$ 152,440	$ 305,759	$ 285,249
Weighted average common shares outstanding, shares	149,291		155,866		150,714	156,513
Weighted average common shares and dilutive potential common shares, shares	149,637		156,526		151,122	157,116
Basic net earnings per share (in dollars per share)	$ 0.64		$ 0.85		$ 2.03	$ 1.82
Diluted net earnings per share (in dollars per share)	$ 0.64		$ 0.85		$ 2.02	$ 1.82
Stock options
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	0		349		13	316
Stock-settled stock units and awards
Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items]
Dilutive potential common shares, shares	346		311		395	287