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Equity-accounted investees - Assets, Liabilities, Revenue and Expenses of Associates (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Equity-Accounted Investees [Line Items] |  |  |
Current assets | $ 5,578,440 | $ 5,866,141 |
Non-current assets | 5,917,129 | 4,912,696 |
Current liabilities | 2,218,816 | 2,513,876 |
Non-current liabilities | 4,078,686 | 3,787,532 |
Revenue | 4,528,761 | 7,467,490 | $ 10,710,578
Net income (loss) | 691,841 | 930,267 | 3,914,284
Other comprehensive income | (23,187) | 145,828 | 14,291
Comprehensive income | 668,654 | 1,076,095 | 3,928,575
Total for all associates |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets | 55,861 | 90,570 |
Non-current assets | 20,391 | 150,268 |
Current liabilities | 27,794 | 55,090 |
Non-current liabilities | 0 | 917 |
Revenue | 141,449 | 138,801 | 127,542
Net income (loss) | 18,449 | 5,629 | 23,180
Other comprehensive income | (23) | 12 | (21)
Comprehensive income | 18,426 | 5,641 | 23,159
Ajay North America |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets | 28,246 | 26,280 |
Non-current assets | 16,438 | 16,307 |
Current liabilities | 9,032 | 6,553 |
Non-current liabilities | 0 | 0 |
Revenue | 72,487 | 60,019 | 63,482
Net income (loss) | 11,677 | 7,617 | 10,919
Other comprehensive income | 0 | 0 | 0
Comprehensive income | 11,677 | 7,617 | 10,919
Ajay Europe SARL |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets | 27,615 | 27,263 |
Non-current assets | 3,953 | 3,197 |
Current liabilities | 18,762 | 15,015 |
Non-current liabilities | 0 | 0 |
Revenue | 68,962 | 73,952 | 64,060
Net income (loss) | 6,772 | 8,025 | 12,261
Other comprehensive income | (23) | 12 | (21)
Comprehensive income | $ 6,749 | 8,037 | $ 12,240
SAS Adionics |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets |  | 19,645 |
Non-current assets |  | 12,294 |
Current liabilities |  | 5,141 |
Non-current liabilities |  | 917 |
Revenue |  | 4,156 |
Net income (loss) |  | (4,924) |
Other comprehensive income |  | 0 |
Comprehensive income |  | (4,924) |
Electric Era Technologies Inc. |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets |  | 15,486 |
Non-current assets |  | 242 |
Current liabilities |  | 3,702 |
Non-current liabilities |  | 0 |
Revenue |  | 674 |
Net income (loss) |  | (3,177) |
Other comprehensive income |  | 0 |
Comprehensive income |  | (3,177) |
Altilium Metals Ltd. |  |  |
Equity-Accounted Investees [Line Items] |  |  |
Current assets |  | 1,896 |
Non-current assets |  | 118,228 |
Current liabilities |  | 24,679 |
Non-current liabilities |  | 0 |
Revenue |  | 0 |
Net income (loss) |  | (1,912) |
Other comprehensive income |  | 0 |
Comprehensive income |  | $ (1,912) |

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