Supplementary cash flow information - Net change in non-cash working capital (Details) - CAD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
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| Cash Flow Statement [Abstract] | ||
| Accounts receivable | $ 80,109 | $ 106,360 |
| Work in progress | (63,386) | (8,999) |
| Prepaid expenses and other assets | 49,158 | 4,466 |
| Long-term financial assets | (9,329) | (24,423) |
| Accounts payable and accrued liabilities | (167,764) | 22,151 |
| Accrued compensation and employee-related liabilities | (59,885) | (27,689) |
| Deferred revenue | (1,932) | 50,420 |
| Income taxes | (85,430) | (98,207) |
| Provisions | 122,426 | (594) |
| Long-term liabilities | 7,739 | 33,540 |
| Derivative financial instruments | 118 | 634 |
| Retirement benefits obligations | 9,133 | 7,337 |
| Increase (decrease) in working capital | $ (119,043) | $ 64,996 |
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- Definition Adjustments For Decrease (Increase) In Non-Current Financial Assets No definition available.
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- Definition Adjustments For Decrease (Increase) In Prepayments And Other Current Assets No definition available.
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- Definition Adjustments For Decrease (Increase) In Work In Progress No definition available.
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- Definition Adjustments For Increase (Decrease) In Provisions No definition available.
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- Definition Adjustments For Increase (Decrease) In Short-Term Employee Benefits Accruals No definition available.
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- Definition Adjustments For Increase (Decrease) In Tax Liabilities No definition available.
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- Definition Cash Flows Statement [Abstract] No definition available.
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- Definition Adjustments for decrease (increase) in loans and advances to banks to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Loans and advances to banks; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Adjustments for decrease (increase) in trade and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other receivables; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Adjustments for the increase (decrease) in deferred income including contract liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Deferred income including contract liabilities; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Adjustments for increase (decrease) in derivative financial liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Derivative financial liabilities; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Adjustments for increase (decrease) in employee benefit liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The increase (decrease) in working capital. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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