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v3.22.2.2

Long-term debt - Long-term debt (Details) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 CAD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2022 CAD ($) tranche payment | Sep. 30, 2022 USD ($) tranche payment | Sep. 30, 2021 CAD ($) | Sep. 30, 2022 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  | $ 3,267,034 |  | $ 3,401,656 |
Current portion |  |  | 93,447 |  | 392,727 |
Long-term debt |  |  | 3,173,587 |  | 3,008,929 |
Repayments of borrowings |  |  | 401,654 |  | 1,888,777 |
Settled cross-currency swap agreement |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | 69,300 |  |  |
2011 U.S. Senior Notes |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | 319,663 |  |  | $ 250,000,000
Borrowings |  |  | 0 |  | 318,009 |
2011 U.S. Senior Notes | Remaining tranche |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Repayments of borrowings |  | $ 250,000,000 |  |  |  |
2011 U.S. Senior Notes | Remaining tranche | Settled interest rate swap agreement |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Repayments of borrowings | $ 319,663 |  |  |  |  |
2014 U.S. Senior Notes |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  | $ 550,177 |  | $ 570,298 |
Number of remaining yearly payments | payment |  |  | 2 | 2 |  |
Borrowings, number of tranches | tranche |  |  | 2 | 2 |  |
Borrowings, number of yearly payments | payment |  |  | 7 | 7 |  |
2014 U.S. Senior Notes | Later than one year and not later than two years |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 412,680 |  |  | $ 300,000,000
2014 U.S. Senior Notes | Gross carrying amount |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 550,240 |  |  |
2014 U.S. Senior Notes | Weighted average |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings, maturity term |  |  | 1 year 9 months 18 days | 1 year 9 months 18 days |  |
Borrowings, interest rate |  |  | 3.98% |  | 3.95% | 3.98%
2014 U.S. Senior Notes | Remaining total tranches |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 137,560 |  |  | $ 100,000,000
2014 U.S. Senior Notes | Tranche six | Less than one year |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | 50,000 |  |  |
2014 U.S. Senior Notes | Tranche seven | Later than one year and not later than two years |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | 50,000 |  |  |
2014 U.S. Senior Notes | Tranche five |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Repayments of borrowings |  |  |  | $ 50,000,000 |  |
2014 U.S. Senior Notes | Tranche five | Settled cross-currency swap agreement |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Repayments of borrowings |  |  | 64,880 |  |  |
2021 U.S. Senior Notes |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  |  |  |  | 1,000,000,000
Borrowings |  |  | $ 1,361,974 |  | $ 1,253,226 |
Borrowings, number of tranches | tranche |  |  | 2 | 2 |  |
2021 U.S. Senior Notes | Later than three years and not later than four years |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 825,360 |  |  | 600,000,000
2021 U.S. Senior Notes | Beyond five years |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | 550,240 |  |  | $ 400,000,000
2021 U.S. Senior Notes | Gross carrying amount |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 1,375,600 |  |  |
2021 U.S. Senior Notes | Weighted average |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings, maturity term |  |  | 6 years | 6 years |  |
Borrowings, interest rate |  |  | 1.79% |  |  | 1.79%
2021 CAD Senior Notes |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  | $ 595,900 |  | 595,331 |
Borrowings, interest rate |  |  | 2.10% |  |  | 2.10%
2021 CAD Senior Notes | Beyond five years |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 600,000,000
2021 CAD Senior Notes | Gross carrying amount |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 600,000 |  |  |
Unsecured committed term loan credit facility |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  | 687,705 |  | 633,623 |
Unsecured committed term loan credit facility | Gross carrying amount |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Notional amount |  |  | $ 687,800 |  |  |
Unsecured committed term loan credit facility | LIBOR | Weighted average |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings, interest rate |  |  | 4.00% |  |  | 4.00%
Other long-term debt |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  | $ 71,278 |  | $ 31,169 |

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