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v3.23.2

Revenue, Deferred revenue (Details) - GBP (£) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Deferred revenue [Abstract] |  |  |  |  |
Revenue recognized | £ 1,602,000 |  | £ 3,204,000 |  |
Revenue recognised related to performance obligations | 0 | £ 0 | 0 | £ 0 |
Aggregate non-refundable fee payment | £ 4,331,000 |  | £ 4,331,000 |  | £ 4,331,000

X
- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate amount of the entity's considered to be non refundable. + References No definition available. + Details
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Namespace Prefix: | imcr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of revenue recognized that was previously reported as deferred revenue. + References No definition available. + Details
Name: | imcr_DeferredRevenuesRevenueRecognized
Namespace Prefix: | imcr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of revenue recognized related to performance obligations. + References No definition available. + Details
Name: | imcr_RevenueRecognizedRelatedToPerformanceObligations
Namespace Prefix: | imcr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration