Summary of Significant Accounting Policies - Contract Liability Details (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Contract Liability Details [Abstract]
Contract with Customer, Liability, Revenue Recognized				$ 20.1
Future Revenues	$ 2.3	$ 1.8	$ 52.8
Revenue, Remaining Performance Obligation				$ 56.9

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130549-203045

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration