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Summary of Significant Accounting Policies and Related Information - Corporate Overview and Principals of Consolidation (Details)
12 Months Ended
Feb. 28, 2021
Segment
$ / shares
Feb. 29, 2020
$ / shares
Accounting Policies [Abstract]    
Common stock, par value (usd per share) | $ / shares $ 0.10 $ 0.10
Number of segments | Segment 3