Share-Based Compensation Plans Share Based Compensation Expense in SG&A (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense, net of tax	$ 5,765	$ 6,336	$ 25,994	$ 19,248
SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	6,549	6,739	28,349	20,654
Less income tax benefits	(784)	(403)	(2,355)	(1,406)
Stock options \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	0	3	0	18
Service Condition Awards \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	3,117	1,677	8,353	5,261
Performance Condition Awards \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	1,622	4,407	14,706	13,873
Market Condition Awards \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	1,115	0	3,504	0
Employee stock purchase plan \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	535	491	1,303	977
Directors stock compensation \| SG&A
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 160	$ 161	$ 483	$ 525

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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