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v3.22.4

Share-based compensation, Plans Outstanding (Details) | 12 Months Ended | 74 Months Ended
--- | --- | ---
Dec. 31, 2022 Options plan | Dec. 31, 2021 Options | Dec. 31, 2020 Options | Dec. 31, 2022 Options
Share-based compensation [Abstract] |  |  |  |
Number of equity-based instrument plans | plan | 2 |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Number of options awarded (in shares) | 1,090,316 | 1,110,914 | 1,073,027 |
Share Option Plan C1 [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Number of options awarded (in shares) |  |  |  | 6,775,250
Vesting conditions | 4 years |  |  |
Contractual life of options | 10 years |  |  |
2016 SOIP [Member] | Executives and Directors [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Number of options awarded (in shares) |  |  |  | 3,277,044
Contractual life of options | 10 years |  |  |
2016 SOIP [Member] | Employees [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Number of options awarded (in shares) |  |  |  | 1,811,687
Vesting conditions | 4 years |  |  |
Contractual life of options | 10 years |  |  |
2016 SOIP, Vesting Condition 1 [Member] | Executives and Directors [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Vesting conditions | 1 year |  |  |
2016 SOIP, Vesting Condition 2 [Member] | Executives and Directors [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Vesting conditions | 3 years |  |  |
2016 SOIP, Vesting Condition 3 [Member] | Executives and Directors [Member] |  |  |  |
Share-based plans outstanding [Abstract] |  |  |  |
Vesting conditions | 4 years |  |  |

X
- Definition The maximum term of options granted for a type of share-based payment arrangement that existed at any time during the period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Namespace Prefix: | aciu_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of equity-based instrument plans approved by the entity. + References No definition available. + Details
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Namespace Prefix: | aciu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition For vesting requirements for a type of share-based payment arrangement that existed at any time during the period, this element represents the period which an employees' right to exercise an award is no longer contingent on satisfaction of a service condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Period Type: | duration

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- References No definition available. + Details
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- Definition The number of share options granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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