Trade and other receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Trade and other receivables [Abstract]
Trade receivables	$ 196,888	$ 258,088
Tax receivables	44,450	50,663
Prepayments	27,115	12,074
Other accounts receivable	7,222	10,910
Trade and other receivables	$ 275,675	$ 331,735

The amount of current prepayments. [Refer: Prepayments]

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Balance Type:	debit
Period Type:	instant

- 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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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

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+ Details

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Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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