v3.20.1

Other non-current assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Other non-current assets |
Schedule of other non-current assets |
|  | December 31,
| 2019 |  | 2018 |  | 2017
| (Euro, in thousands)
Non-current restricted cash | € | 1,418 |  | € | 1,276 |  | € | 1,158
Financial assets held at fair value through profit or loss |  | 11,275 |  |  | 6,000 |  |  | 1,754
Other non-current assets |  | 1,399 |  |  | 643 |  |  | 549
Total other non-current assets | € | 14,091 |  | € | 7,919 |  | € | 3,461
Schedule of financial assets held at fair value through profit or loss |
|  | December 31,
| 2019 |  | 2018 |  | 2017
| (Euro, in thousands)
Costs at January 1 | € | 4,818 |  | € | 2,373 |  | € | 2,750
Acquisitions of the year |  | — |  |  | 4,736 |  |  | —
Disposals of the year |  | (82) |  |  | (2,291) |  |  | (377)
Costs at December 31, |  | 4,736 |  |  | 4,818 |  |  | 2,373
Fair value adjustment at January 1 |  | 1,182 |  |  | (619) |  |  | (399)
Cancellation of fair value adjustment following disposal |  | 2 |  |  | 598 |  |  | 55
Fair value adjustment of the year |  | 5,355 |  |  | 1,203 |  |  | (275)
Fair value adjustment at December 31, |  | 6,539 |  |  | 1,182 |  |  | (619)
Net book value at December 31, | € | 11,275 |  | € | 6,000 |  | € | 1,754

X
- Definition The disclosure of detailed information about other non-current assets. + References No definition available. + Details
Name: | glpg_DisclosureOfDetailedInformationAboutOtherNoncurrentAssetsTableTextBlock
Namespace Prefix: | glpg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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 disclosure of financial instruments measured at fair value through profit or loss. [Refer: At fair value [member]; Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_10_e&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration