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Stock And Stock-Based Incentive Plans Stock And Stock-Based Incentive Plans (Unrecognized Compensation Expense) (Details) $ in Millions | 12 Months Ended
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Feb. 28, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 59.6
Weighted Average Remaining Recognition Life (Years) | 1 year 10 months 24 days
Stock Option |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 44.0
Weighted Average Remaining Recognition Life (Years) | 2 years 1 month 6 days
Stock-Settled Market Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 14.9
Weighted Average Remaining Recognition Life (Years) | 1 year 2 months 12 days
Performance Shares |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 0.5
Weighted Average Remaining Recognition Life (Years) | 1 year 2 months 12 days
Deferred Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 0.0
Weighted Average Remaining Recognition Life (Years) | 0 years
Restricted Stock Awards |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 0.2
Weighted Average Remaining Recognition Life (Years) | 2 years
Total other share-based incentives |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 0.7
Weighted Average Remaining Recognition Life (Years) | 1 year 4 months 24 days

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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