Trade and other receivables (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Trade and other receivables [Abstract]
Trade receivables	$ 236,406	$ 258,088
Tax receivables	56,554	50,663
Prepayments	22,616	12,074
Other accounts receivable	8,691	10,910
Trade and other receivables	324,267	$ 331,735
Increase in trade receivables	$ 28,000

Adjustments for decrease (increase) in trade accounts receivable to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of current prepayments. [Refer: Prepayments]

+ References

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- Definition

The amount of current receivables from taxes other than income tax. [Refer: Receivables from taxes other than income tax]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of current trade receivables. [Refer: Trade receivables]

+ References

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- Definition

The amount of current other receivables. [Refer: Other receivables]

+ References

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- Definition

The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

+ References

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