Income Taxes - Components of Provision for (Recovery of) Income Tax and Income from Continuing Operations Before Income Tax (Details) - USD ($) $ in Millions |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Feb. 28, 2025 |
Feb. 29, 2024 |
||||||||
| Income Tax Disclosure [Abstract] | ||||||||||
| Statutory Canadian tax rate, Percent | 15.00% | [1] | 26.50% | [2] | 26.50% | [2] | ||||
| Expected provision for (recovery of) income taxes from continuing operations | $ 8.9 | $ 2.3 | $ 7.9 | |||||||
| Differences in income taxes resulting from: | ||||||||||
| Valuation allowance | (5.5) | 1.6 | (3.3) | |||||||
| Investment tax credits | (3.3) | (8.1) | (10.0) | |||||||
| Change in unrecognized income tax benefits | (0.1) | (1.1) | ||||||||
| Foreign tax rate differences | 0.1 | 5.9 | 4.5 | |||||||
| Non-deductible permanent difference | 1.1 | 8.8 | 7.7 | |||||||
| Goodwill impairment | 0.0 | 4.2 | ||||||||
| Effective Income Tax Rate Reconciliation, Period Peroid Adjustments, Amount | 0.4 | (0.4) | 8.6 | |||||||
| Other differences | 0.2 | 7.0 | 5.7 | |||||||
| Provision for income taxes (note 6) | $ 5.8 | $ 17.0 | $ 24.2 | |||||||
| ||||||||||
| X | ||||||||||
- Definition Difference in income tax resulting from. No definition available.
|
| X | ||||||||||
- Definition Difference in income taxes resulting from Goodwill impairment No definition available.
|
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Period Peroid Adjustments, Amount No definition available.
|
| X | ||||||||||
- Definition Non-deductible permanent difference No definition available.
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to investment tax credit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|