Represents amount of letters of credit.

No definition available.

Name:	hbm_LettersOfCredit
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Letters of credit issued to support reclamation or pension obligations

+ References

No definition available.

+ Details

Name:	hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for repayments of revolving credit facility.

+ References

No definition available.

+ Details

Name:	hbm_RepaymentsOfRevolvingCreditFacility
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents revolving credit facility accordion feature.

+ References

No definition available.

+ Details

Name:	hbm_RevolvingCreditFacilityAccordionFeature
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents surety bonds issued to support its reclamation obligations.

+ References

No definition available.

+ Details

Name:	hbm_SuretyBondsIssuedToSupportReclamationObligations
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents amount of unamortized transaction costs - revolving credit facilities.

+ References

No definition available.

+ Details

Name:	hbm_UnamortizedTransactionCosts
Namespace Prefix:	hbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of interest and other costs that an entity incurs in connection with the borrowing of funds that are recognised as an expense.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_BorrowingCostsRecognisedAsExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of instruments issued by the entity that represent indebtedness.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_DebtSecurities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Definition

The cash outflow for debt issue costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_17&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_PaymentsForDebtIssueCosts
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for repayments of bonds, notes and debentures.

+ References

+ Details

Name:	ifrs-full_RepaymentsOfBondsNotesAndDebentures
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 50
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_UndrawnBorrowingFacilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hbm_SeniorUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hbm_SeniorNotesDue2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hbm_SeniorNotesDue2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hbm_SeniorSecuredRevolvingCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=country_CA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=country_PE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=hbm_ManitobaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=hbm_ArizonaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SegmentsAxis=stpr_CA-BC
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	ifrs-full_BorrowingsByNameAxis=hbm_LetterOfCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-term debt (Narrative) (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended		24 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 CAD ($)	Dec. 31, 2025 USD ($)
Disclosure of detailed information about borrowings [line items]
Transaction costs		$ 11.7	$ 15.1
Senior unsecured notes [Member]
Disclosure of detailed information about borrowings [line items]
Face amount of debt instruments						$ 1,014.9
Repurchased and retired		102.5	82.6
Unamortized transaction costs		0.1	0.6
Senior notes due 2026 [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate					4.50%	4.50%
Face amount of debt instruments						$ 472.5
Repurchased and retired		102.5		$ 127.5
Other expenses		0.4	0.7
Senior notes due 2029 [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate					6.125%	6.125%
Face amount of debt instruments						$ 542.4
Repurchased and retired				$ 57.6
Senior secured revolving credit facilities [Member]
Disclosure of detailed information about borrowings [line items]
Undrawn borrowing facilities						450.0
Revolving credit facility accordion feature						150.0
Transaction costs	$ 2.5		2.5
Senior secured revolving credit facilities [Member] \| Canada [Member]
Disclosure of detailed information about borrowings [line items]
Repayments of revolving credit facility			10.0
Senior secured revolving credit facilities [Member] \| Peru [Member]
Disclosure of detailed information about borrowings [line items]
Repayments of revolving credit facility			$ 90.0
Letters of credit issued to support reclamation or pension obligations						0.0
Surety bonds issued to support reclamation obligations		23.3
Letters of credit						111.7
Senior secured revolving credit facilities [Member] \| Manitoba [Member]
Disclosure of detailed information about borrowings [line items]
Letters of credit issued to support reclamation or pension obligations						25.2
Senior secured revolving credit facilities [Member] \| Arizona [Member]
Disclosure of detailed information about borrowings [line items]
Surety bonds issued to support reclamation obligations		18.4
Senior secured revolving credit facilities [Member] \| British Columbia [Member]
Disclosure of detailed information about borrowings [line items]
Surety bonds issued to support reclamation obligations		47.9
Letters of credit						0.3
Senior secured revolving credit facilities [Member] \| British Columbia [Member] \| BC Hydro [Member]
Disclosure of detailed information about borrowings [line items]
Surety bonds issued to support reclamation obligations		$ 1.0
Letter of credit facility [Member]
Disclosure of detailed information about borrowings [line items]
Letters of credit					$ 130.0
Letter of credit facility [Member] \| Manitoba [Member]
Disclosure of detailed information about borrowings [line items]
Letters of credit issued to support reclamation or pension obligations						$ 56.4