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v3.21.1

Borrowings and debt (Details 3) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | $ 1,593,043 | $ 1,526,095
2021 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 252,045 |
2022 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 525,175 |
2023 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 108,436 |
2024 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 64,757 |
More than 5 years |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 618,154 |
2026 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | 12,238 |
2027 |  |
Disclosure of Long term borrowings Terms [Line Items] |  |
long-term borrowings and debt | $ 12,238 |

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