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Financial instruments - Schedule of Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Level 1 |  |
Fair Value of Financial Instruments [Line Items] |  |
Long-term investments carried at fair value | $ 2,058 | $ 1,054,665
Other receivables | 0 | 0
Total derivative instruments | 0 | 0
Total financial assets | 2,058 | 1,054,665
Long-term debt | 1,922,563 | 1,824,103
Convertible debentures | 249 | 276
Total derivative instruments | 0 | 0
Total financial liabilities | 1,922,812 | 1,824,379
Level 1 | Cross-currency interest rate swap | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 0
Level 1 | Interest rate forwards | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 0 | 0
Total derivative instruments | 0 | 0
Level 1 | Interest rate cap | Not designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 0
Level 1 | Commodity contracts | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 0 |
Level 1 | Commodity contracts | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 0 | 0
Level 1 | Currency Forward Contract | Designated as a hedge | Net investment hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 0
Level 2 |  |
Fair Value of Financial Instruments [Line Items] |  |
Long-term investments carried at fair value | 0 | 0
Other receivables | 578 | 611
Total derivative instruments | 108,466 | 74,790
Total financial assets | 109,044 | 75,401
Long-term debt | 4,212,956 | 4,628,106
Convertible debentures | 0 | 0
Total derivative instruments | 19,423 | 26,680
Total financial liabilities | 4,232,379 | 4,654,786
Level 2 | Cross-currency interest rate swap | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 5,547
Level 2 | Interest rate forwards | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 108,296 | 72,936
Total derivative instruments | 19,089 | 11,790
Level 2 | Interest rate cap | Not designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 1,854
Level 2 | Commodity contracts | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 170 |
Level 2 | Commodity contracts | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 334 | 2,564
Level 2 | Currency Forward Contract | Designated as a hedge | Net investment hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 6,779
Carrying amount |  |
Fair Value of Financial Instruments [Line Items] |  |
Long-term investments carried at fair value | 2,058 | 1,054,665
Other receivables | 688 | 726
Total derivative instruments | 108,466 | 74,790
Total financial assets | 111,212 | 1,130,181
Long-term debt | 6,207,040 | 7,500,155
Convertible debentures | 250 | 230
Total derivative instruments | 19,423 | 26,680
Total financial liabilities | 6,226,713 | 7,527,065
Carrying amount | Cross-currency interest rate swap | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 5,547
Carrying amount | Interest rate forwards | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 108,296 | 72,936
Total derivative instruments | 19,089 | 11,790
Carrying amount | Interest rate cap | Not designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 1,854
Carrying amount | Commodity contracts | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 170 |
Carrying amount | Commodity contracts | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 334 | 2,564
Carrying amount | Currency Forward Contract | Designated as a hedge | Net investment hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 6,779
Fair value |  |
Fair Value of Financial Instruments [Line Items] |  |
Long-term investments carried at fair value | 2,058 | 1,054,665
Other receivables | 578 | 611
Total derivative instruments | 108,466 | 74,790
Total financial assets | 111,102 | 1,130,066
Long-term debt | 6,135,519 | 6,452,209
Convertible debentures | 249 | 276
Total derivative instruments | 19,423 | 26,680
Total financial liabilities | 6,155,191 | 6,479,165
Fair value | Cross-currency interest rate swap | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 5,547
Fair value | Interest rate forwards | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 108,296 | 72,936
Total derivative instruments | 19,089 | 11,790
Fair value | Interest rate cap | Not designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | 1,854
Fair value | Commodity contracts | Designated as a hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | 170 |
Fair value | Commodity contracts | Designated as a hedge | Cash flow hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments | $ 334 | 2,564
Fair value | Currency Forward Contract | Designated as a hedge | Net investment hedge |  |
Fair Value of Financial Instruments [Line Items] |  |
Total derivative instruments |  | $ 6,779

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