Summary of Significant Accounting Policies - Contract Liability Details (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Movement In Contract With Customer, Liability [Roll Forward]
Balance at beginning of period	$ 18,418	$ 56,928
Contract liabilities added during the period	11,868	14,292
Sales recognized during the period	(14,148)	(52,802)
Balance at end of period	$ 16,138	$ 18,418