OTHER LIABILITIES - Other Plans (Details) $ in Millions	12 Months Ended
Dec. 31, 2021 USD ($) plan installment	Dec. 31, 2020 USD ($)
Details of other plans
Number of defined contribution plans \| plan	2
Basic Plan
Details of other plans
Percentage of Agnico Eagle's contribution for employees to a defined contribution plan (as a percent)	5.00%
Agnico Eagle's contribution amount to a defined contribution plan	$ 17.0	$ 13.6
Supplemental Plan
Details of other plans
Agnico Eagle's contribution amount to a defined contribution plan	$ 1.5	1.3
Percentage of Agnico Eagle's contribution for designated executives to a defined contribution plan (as a percent)	10.00%
Net contribution plan liability in relation to plan	$ 10.6	11.5
Number of pension payable in annual installments \| installment	5
Key management personnel \| Basic Plan
Details of other plans
Agnico Eagle's contribution amount to a defined contribution plan	$ 0.2	0.2
Key management personnel \| Supplemental Plan
Details of other plans
Agnico Eagle's contribution amount to a defined contribution plan	$ 0.9	$ 1.0

Percentage of designated executive's earnings which the employer contributes to a defined contribution plan.

No definition available.

Name:	aem_DefinedBenefitsPlansEmployerContributionPercentOfDesignatedExecutiveSEarnings
Namespace Prefix:	aem_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of employees' basic pay which the employer contributes to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	aem_DefinedBenefitsPlansEmployerContributionPercentOfEmployeesBasicPay
Namespace Prefix:	aem_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of employer's contribution to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	aem_DefinedContributionPlansEmployerContributionAmount
Namespace Prefix:	aem_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of deficit or surplus in a contribution plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling.

+ References

No definition available.

+ Details

Name:	aem_NetContributionPlanLiabilityAsset
Namespace Prefix:	aem_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of defined contribution plans.

+ References

No definition available.

+ Details

Name:	aem_NumberOfDefinedContributionPlans
Namespace Prefix:	aem_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of installments that the pension payable is paid following the conversion of the notional account balance of the Supplemental Plan at the retirement date.

+ References

No definition available.

+ Details

Name:	aem_NumberOfPensionPayableInInstallments
Namespace Prefix:	aem_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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.

+ Details

Name:	ifrs-full_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=aem_DefinedBenefitBasicPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=aem_DefinedBenefitSupplementalPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_KeyManagementPersonnelOfEntityOrParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: