The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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Balance Type:	credit
Period Type:	instant

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
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- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

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- Definition

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

+ References

No definition available.

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- Definition

The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 17
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_17_d&doctype=Standard
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- Definition

The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

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Balance Type:	debit
Period Type:	instant

- Definition

The amount of letter of credit.

+ References

No definition available.

+ Details

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

- Definition

The revolving credit facility to extend the maturity of the borrowings.

+ References

No definition available.

+ Details

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- Definition

The Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The amount of proceeds from letter of credit.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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LONG-TERM DEBT AND CREDIT FACILITIES - Revolving credit and term loan (Details) - USD ($) $ in Millions			3 Months Ended				12 Months Ended
	Aug. 04, 2022	Mar. 07, 2022	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Long-term debt
Carrying Amount			$ 2,592.9				$ 2,592.9	$ 1,629.9
Repayment of debt							$ 340.0	500.0
Standby fee (as percent of unused availability)							0.29%
Amount held in separate bank account for repayments			10.1				$ 10.1	11.4
Tasiast Mauritanie Ltd. S.A.
Long-term debt
Carrying Amount			$ 160.0				160.0
Repayment of debt							$ 40.0
Interest rate (as a percent)			4.38%				4.38%
Amount held in separate bank account for repayments			$ 27.8				$ 27.8
Revolving credit facility
Long-term debt
Carrying Amount			206.7				206.7	$ 206.5
Maximum borrowing capacity	$ 1,500.0		1,500.0				1,500.0
Letters of credit			6.7				6.7
Extend the maturity	1 year
Borrowings, maturity	August 4, 2027
Amount drawn from letter of credit			$ 100.0	$ 100.0			$ 200.0
Repayment of debt				$ 200.0	$ 100.0
Interest rate (as a percent)			1.45%				1.45%
Revolving credit facility \| Great Bear acquisition
Long-term debt
Amount drawn from letter of credit		$ 1,100.0				$ 1,100.0
Letter of credit \| Minimum
Long-term debt
Interest rate (as a percent)			0.967%				0.967%
Letter of credit \| Maximum
Long-term debt
Interest rate (as a percent)			1.45%				1.45%
Term Loan
Long-term debt
Carrying Amount			$ 998.2				$ 998.2
Interest rate (as a percent)			1.25%				1.25%	1.25%
Term Loan \| Great Bear acquisition
Long-term debt
Maximum borrowing capacity		1,000.0
Repayment of debt		$ 1,000.0