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Accumulated other comprehensive income | 12 Months Ended
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Sep. 30, 2022
Disclosure of analysis of other comprehensive income by item [abstract] |
Accumulated other comprehensive income | Accumulated other comprehensive income
| As at September 30, 2022 | As at September 30, 2021
| $ | $
Items that will be reclassified subsequently to net earnings: |  |
Net unrealized gains on translating financial statements of foreign operations, net of accumulated income tax expense of $45,419 ($43,208 as at September 30, 2021) | 291,532 |  | 611,230 |
Net losses on cross-currency swaps and on translating long-term debt designated as hedges of net investments in foreign operations, net of accumulated income tax recovery of $43,936 ($41,611 as at September 30, 2021) | (271,690) |  | (267,149) |
Deferred gains of hedging on cross-currency swaps, net of accumulated income tax expense of $4,664 ($2,369 as at September 30, 2021) | 28,274 |  | 6,569 |
Net unrealized gains on cash flow hedges, net of accumulated income tax expense of $10,398 $1,252 as at September 30, 2021) | 30,274 |  | 5,029 |
Net unrealized (losses) gains on financial assets at fair value through other comprehensive income, net of accumulated income tax recovery of $1,367 (net of accumulated income tax expense of $592 as at September 30, 2021) | (4,072) |  | 2,191 |
Items that will not be reclassified subsequently to net earnings: |  |
Net remeasurement losses on defined benefit plans, net of accumulated income tax recovery of $12,095 ($11,084 as at September 30, 2021) | (34,572) |  | (26,290) |
| 39,746 |  | 331,580 |
For the year ended September 30, 2022, $4,151,000 of the net unrealized gains on cash flow hedges, net of income tax expense of $998,000, previously recognized in other comprehensive income were reclassified in the consolidated statements of earnings ($412,000 of net unrealized loss on cash flow hedges, net of income tax recovery of $623,000, were reclassified for the year ended September 30, 2021). For the year ended September 30, 2022, $10,746,000 of the deferred gains of hedging on cross-currency swaps, net of income tax expense of 3,876,000, were also reclassified in the consolidated statements of earnings ($10,317,000 and $3,719,000, respectively for the year ended September 30, 2021).

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