XML 81 R42.htm IDEA: XBRL DOCUMENT
v3.21.1

Intangible assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Text Block [Abstract] |
Disclosure of reconciliation of changes in intangible assets and goodwill [text block] | Changes to intangible assets during 2020 and 2019 consisted of the following:
(Euros in thousands) |  | Patents and licenses |  |  | Software licenses |  |  | Total |
Cost as of January 1, 2019 |  |  | 1,201 |  |  |  | 551 |  |  |  | 1,752 |
Additions |  |  | — |  |  |  | 91 |  |  |  | 91 |
Currency translation differences |  |  | 19 |  |  |  | 1 |  |  |  | 20 |
Cost as of December 31, 2019 |  |  | 1,220 |  |  |  | 643 |  |  |  | 1,863 |
Accumulated amortization as of January 1, 2019 |  |  | 314 |  |  |  | 399 |  |  |  | 713 |
Additions |  |  | 24 |  |  |  | 87 |  |  |  | 111 |
Currency translation differences |  |  | 31 |  |  |  | — |  |  |  | 31 |
Accumulated amortization as of December 31, 2019 |  |  | 369 |  |  |  | 486 |  |  |  | 855 |
Net book value as of December 31, 2019 |  |  | 851 |  |  |  | 157 |  |  |  | 1,008 |
Cost as of January 1, 2020 |  |  | 1,220 |  |  |  | 643 |  |  |  | 1,863 |
Additions |  |  | — |  |  |  | 104 |  |  |  | 104 |
Currency translation differences |  |  | (88 | ) |  |  | (9 | ) |  |  | (97 | )
Cost as of December 31, 2020 |  |  | 1,132 |  |  |  | 738 |  |  |  | 1,870 |
Accumulated amortization as of January 1, 2020 |  |  | 369 |  |  |  | 486 |  |  |  | 855 |
Additions |  |  | 56 |  |  |  | 71 |  |  |  | 126 |
Currency translation differences |  |  | (22 | ) |  |  | (3 | ) |  |  | (25 | )
Accumulated amortization as of December 31, 2020 |  |  | 403 |  |  |  | 554 |  |  |  | 956 |
Net book value as of December 31, 2020 |  |  | 730 |  |  |  | 184 |  |  |  | 914 |
Disclosure Of Amortization Expenses [Table Text Block] | Amortization expense is classified as follows within the Consolidated Statement of Loss:
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (Euros in thousands) |
Research and development expenses |  |  | 31 |  |  |  | 28 |  |  |  | 9 |
General and administrative expenses |  |  | 95 |  |  |  | 83 |  |  |  | 109 |
Total |  |  | 126 |  |  |  | 111 |  |  |  | 118 |

X
- Definition The disclosure of the reconciliation of changes in intangible assets and goodwill. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Paragraph 118 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of amortization expenses. + References No definition available. + Details
Name: | imtx_DisclosureOfAmortizationExpensesTableTextBlock
Namespace Prefix: | imtx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block. + References No definition available. + Details
Name: | imtx_TextBlockAbstract
Namespace Prefix: | imtx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration