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Subsequent Events - Additional Information (Details) - Subsequent Event - Amgen Agreement - Amgen Inc. $ in Millions | May 08, 2023 USD ($)
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Subsequent Event [Line Items] |
Upfront payment received | $ 30
Eligible to earn success-based milestone payments | $ 500

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- Definition Eligible to earn success-based milestone payments. + References No definition available. + Details
Name: | tcrx_EligibleToEarnSuccessBasedMilestonePayments
Namespace Prefix: | tcrx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition License upfront payment received. + References No definition available. + Details
Name: | tcrx_LicenseUpfrontPaymentReceived
Namespace Prefix: | tcrx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_OwnershipAxis=tcrx_AmgenAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_CounterpartyNameAxis=tcrx_AmgenIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |