Financial risk management - Additional information (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
FINANCIAL RISK MANAGEMENT
Description of functional currency	U.S. dollars
Percentage of gains losses on exchange differences on translation recognised in profit or loss	10.00%
Percentage of changes in differences on commodity price recognised in net earnings and other comprehensive income	10.00%
At 1 percent change
FINANCIAL RISK MANAGEMENT
Interest income	$ 1.9

The description of the currency of the primary economic environment in which the entity operates.

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The amount of income arising from interest.

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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No definition available.

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- Definition

It represents the percentage of changes in price of commodity impact on net earnings and other comprehensive income.

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No definition available.

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- Definition

It represents the percentage of impact on functional currency against host currency.

+ References

No definition available.

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