Capital Stock - Summary of Unvested Stock Options (Details) shares in Thousands	12 Months Ended
	Feb. 29, 2020 $ / shares shares
Number (000’s)
Options Outstanding, Number, Beginning Balance	9,014
Granted during the year, Number	0
Options Outstanding, Number, Ending Balance	5,705
Unvested stock options [Member]
Number (000’s)
Options Outstanding, Number, Beginning Balance	8,458
Vested during the year, Number	(4,317)
Options Forfeited during the year, Number	(1,901)
Options Outstanding, Number, Ending Balance	2,240
Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 5.45
Weighted Average Grant Date Fair Value, Vested during the periods (usd per share) | $ / shares	5.77
Weighted Average Grant Date Fair Value, Forfeited during the periods (usd per share) | $ / shares	5.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 4.91