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Earnings (Loss) Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Feb. 28, 2025
Feb. 29, 2024
Feb. 28, 2023
Earnings Per Share [Abstract]      
Net income (loss) for basic and diluted earnings (loss) per share available to common shareholders from continuing operations $ (8.5) $ 5.6 $ (215.5)
Debentures fair value impact on EPS 0.0 [1] 0.0 [1] 137.4 [2]
Interest expense, Debt on diluted EPS from continuing operations [2] 0.0 [1] 0.0 6.4
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted (8.5) 5.6 (346.5)
Net loss (79.0) (130.2) (734.4)
Debentures fair value impact on Diluted EPS from net income (loss) [1] 0.0 0.0  
Interest expense, debt adjustment impact on EPS 0.0 [1] 0.0 [1] 6.4 [2]
Net Income (Loss) Available to Common Stockholders, Diluted $ (79.0) $ (130.2) $ (865.4)
Weighted-average number of shares outstanding (000's) - basic and diluted 591,470 584,543 578,654
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements 0 [3] 7,954 [4] 0 [3]
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities 0 [1] 0 [1] 60,833 [2]
Weighted Average Number of Shares Outstanding, Diluted 591,470 592,497 639,487
Basic earnings (loss) per share from continuing operations $ (0.01) $ 0.01 $ (0.37)
Earnings Per Share, Basic (0.13) (0.22) (1.27)
Diluted earnings (loss) per share from continuing operations (0.01) 0.01 (0.54)
Earnings Per Share, Diluted $ (0.13) $ (0.22) $ (1.35)
[1] The Company has not presented the dilutive effect of the Debentures using the if-converted method in the calculation of diluted loss per share for the years ended February 28, 2025 and February 29, 2024, as to do so would be antidilutive. See Note 7 for details on the Debentures.
[2] The Company has presented the dilutive effect of the 2020 Debentures using the if-converted method, assuming conversion at the beginning of the fiscal year for the year ended February 28, 2023. Accordingly, to calculate diluted loss per share, the Company adjusted net income (loss) by eliminating the fair value adjustment made to the 2020 Debentures and interest expense incurred on the 2020 Debentures in the year ended February 28, 2023, and added the number of shares that would have been issued upon conversion to the diluted weighted average number of shares outstanding. See Note 7 for details on the 2020 Debentures.
[3] The Company has not presented the dilutive effect of in-the-money options and RSUs that will be settled upon vesting by the issuance of new common shares in the calculation of diluted loss per share for the years ended February 28, 2025 and February 28, 2023 as to do so would be antidilutive.
[4] The Company has presented the dilutive effect of in-the-money options and RSUs that will be settled upon vesting by the issuance of new common shares in the calculation of diluted loss per share for the year ended February 29, 2024.