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Share-Based Compensation Plans - Unrecognized share based compensation expense (Details) $ in Thousands	12 Months Ended
	Feb. 28, 2019 USD ($)
Stock options
UNRECOGNIZED SHARE-BASED COMPENSATION EXPENSE
Unrecognized Compensation Expense	$ 244
Weighted Average Period of Recognition (in months)	8 years 7 months 6 days
Restricted stock units (RSUs and PSUs)
UNRECOGNIZED SHARE-BASED COMPENSATION EXPENSE
Unrecognized Compensation Expense	$ 18,519
Weighted Average Period of Recognition (in months)	26 years 4 months 24 days

X

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Topic 718
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- References

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