Trade and Other Receivables - Summary of Detailed Information about Trade and Other Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Trade And Other Current Receivables [Abstract]
Trade receivable	$ 150	$ 1,019
VAT receivable	9,982	10,614
Income tax refund receivable	3,587
Other receivables	12	59
Trade and other receivables	$ 13,731	$ 11,692

Current income tax refund receivable.

No definition available.

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Namespace Prefix:	alo_
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
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- 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
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- 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_
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Balance Type:	debit
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- References

No definition available.

+ Details

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