Disclosure of detailed information about trade and other receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Statements Line Items
Trade receivables	$ 5,627	$ 8,114
IVA receivables	15,353	19,989
Income taxes recoverable	5,587	5,549
Due from related parties	1	2
Other receivables	379	358
Accounts receivable	$ 26,947	$ 34,012

Statement [Line Items]

No definition available.

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- Definition

The current amount of current tax assets. [Refer: Current tax assets]

+ References

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-URIDate 2018-03-16

+ 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

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+ Details

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

- Definition

The amount of current value added tax receivables. [Refer: Value added tax receivables]

+ References

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

The amount of current receivables due from related parties. [Refer: Related parties [member]]

+ References

+ Details

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