Name:	hafn_BorrowingCapacityLineOfCreditFacilityRefinanced
Namespace Prefix:	hafn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The cancelled 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 credit facility.

No definition available.

Name:	hafn_CancelledBorrowingCapacityLineOfCreditFacility
Namespace Prefix:	hafn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Commitment fees paid as a percentage of facilities' margin to have revolving credit facilities.

No definition available.

Name:	hafn_CreditFacilitiesCommitmentFeesAsAPercentageOfFacilitiesMargin
Namespace Prefix:	hafn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The maturity of borrowings.

No definition available.

Name:	hafn_MaturityOfBorrowings
Namespace Prefix:	hafn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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 credit facility.

No definition available.

Name:	hafn_MaximumBorrowingCapacityLineOfCreditFacility
Namespace Prefix:	hafn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The number of credit and borrowing base facilities from external financial institutions.

No definition available.

Name:	hafn_NumberOfCreditFacilities
Namespace Prefix:	hafn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The partially cancelled 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 credit facility.

No definition available.

Name:	hafn_PartiallyCancelledBorrowingCapacityLineOfCreditFacility
Namespace Prefix:	hafn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

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

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

- References

No definition available.

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

The maturity of borrowings. [Refer: Borrowings]

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