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Capital Stock - Summary of Option Activity (Details)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Feb. 28, 2023
USD ($)
$ / shares
shares
Number (000’s)  
Options Outstanding, Number, Beginning Balance | shares 728
Exercised during the year, Number | shares (97)
Forfeited/cancelled/expired during the year, Number | shares (142)
Options Outstanding, Number, Ending Balance | shares 489
Stock options vested and expected to Vest, Number | shares 489
Exercisable, Number | shares 489
Weighted Average Exercise Price  
Beginning balance (usd per share) | $ / shares $ 4.70
Exercised during the year (usd per share) | $ / shares 3.59
Forfeited/cancelled/expired during the year (usd per share) | $ / shares 5.71
Ending balance (usd per share) | $ / shares 4.63
Vested and expected to vest (usd per share) | $ / shares 4.63
Exercisable (usd per share) | $ / shares $ 4.63
Additional Disclosures [Abstract]  
Average Remaining Contractual Life in Years 4 years 8 months 26 days
Stock options vested and expected to vest, Average Remaining Contractual Life in Years 4 years 8 months 26 days
Exercisable, Weighted Average Remaining Contractual Term 4 years 8 months 26 days
Aggregate Intrinsic Value | $ $ 0
Stock Options Vested and Expected to Vest, Aggregate Intrinsic Value | $ 0
Exercisable, Aggregate Intrinsic Value | $ $ 0