Average Realized Price Per Ounce

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- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Other Comprehensive Income

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- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Impact On Pre-Tax Earnings

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- Definition

Sensitivity Analysis For Types Of Market Risk, Reasonably Possible Change In Risk Variable, Percent

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- Definition

Unrealized Gain (Loss) on Derivatives1

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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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- Definition

The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard
-URIDate 2019-03-27

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Financial Instruments and Risk Management (Market Price Risk) (Details) $ in Millions		12 Months Ended
	Jan. 07, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) $ / oz
Disclosure of detailed information about hedged items [line items]
Gains (losses) on change in fair value of derivatives	$ 3.9
Unrealized gains		$ 0.6	$ 0.4
Market risk [member]
Disclosure of detailed information about hedged items [line items]
Potential percentage change in value		1000.00%
Impact on other comprehensive income		$ 2.1	0.8
Gold Options [Member] \| Market risk [member]
Disclosure of detailed information about hedged items [line items]
Potential percentage change in value		10.00%
Impact on pre-tax earnings		$ 66.6	$ 63.0
Bottom of range [member] \| Gold Options [Member] \| Market risk [member]
Disclosure of detailed information about hedged items [line items]
Average realized price per ounce \| $ / oz			1,270
Top of range [member] \| Gold Options [Member] \| Market risk [member]
Disclosure of detailed information about hedged items [line items]
Average realized price per ounce \| $ / oz			1,546