Stock And Stock-Based Incentive Plans (Composition Of Share-Based Compensation Expense - By Grant Type) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	$ 88,172	$ 111,933	$ 124,211
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	38,629	33,598	31,500
Cash-Settled Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	23,567	52,435	72,243
Stock-Settled Market Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	15,617	13,984	15,596
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	5,123	6,289	489
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	1,850	1,925	1,925
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	806	966	147
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	2,580	2,736	2,311
Total other share-based incentives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense, before income taxes	$ 10,359	$ 11,916	$ 4,872