Name:	hafn_CancelledBorrowingCapacityLineOfCreditFacility
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 refinanced 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_RefinancedBorrowingCapacityLineOfCreditFacility
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
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

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 interest rate on borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_7&doctype=Standard
-URIDate 2024-03-27

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

The maturity of borrowings. [Refer: Borrowings]