Revenues Contract Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2020	May 31, 2019	Feb. 29, 2020	Feb. 28, 2019
Contract Liability [Abstract]
Contract with Customer, Liability	$ 17,365	$ 22,319	$ 18,418	$ 56,928
Increase (Decrease) in Contract with Customer, Liability	4,796	10,970
Contract with Customer, Liability, Revenue Recognized	$ (5,849)	$ (45,579)