v3.25.1

Other non-current assets - Summary (Details) - EUR (€) € in Thousands	Dec. 31, 2024	Dec. 31, 2023
Other non-current assets
Non-current restricted cash	€ 1,985	€ 5,533
Non-current portion of upfront payment to NovAlix	2,580	4,656
Non-current portion of advance related to the NovAliX transaction	2,877	5,563
Other non-current assets	1,266	318
Total other non-current assets	€ 8,708	€ 16,070

X

- Definition

The amount of noncurrent portion of advance made to a counterparty in a collaborative arrangement.

+ References

No definition available.

+ Details

Name:	glpg_NoncurrentPortionOfAdvanceMadeToCounterpartyInCollaborativeArrangement
Namespace Prefix:	glpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of noncurrent portion of upfront payment made to a counterparty in a collaborative arrangement.

+ References

No definition available.

+ Details

Name:	glpg_NoncurrentPortionOfUpfrontPaymentToCounterpartyInCollaborativeArrangement
Namespace Prefix:	glpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of miscellaneous other non current assets.

+ References

No definition available.

+ Details

Name:	glpg_OtherMiscellaneousNonCurrentAssets
Namespace Prefix:	glpg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

n/a

+ References

No definition available.

+ Details

Name:	glpg_OtherNoncurrentAssetsAbstract
Namespace Prefix:	glpg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of non-current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

+ References

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

+ Details

Name:	ifrs-full_NoncurrentRestrictedCashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

+ References

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

+ Details

Name:	ifrs-full_OtherNoncurrentAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant