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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