Description of Business and Summary of Significant Accounting Policies - Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Aug. 31, 2018	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Impairment of long-lived assets held-for-use	$ 3,473	$ 0	$ 3,473	$ 0
Venezuela [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Impairment of long-lived assets held-for-use		$ 0		$ 0