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v3.22.1

Commitments - Additional Information (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($)
Commitments [Abstract] |
Prior notification period to terminate arrangement | 12 months
Minimum non-cancellable costs | $ 40.6
Obligated to pay to Lonza | $ 5.8

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- Definition Commitments + References No definition available. + Details
Name: | aclx_CommitmentsAbstract
Namespace Prefix: | aclx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum non-cancellable costs. + References No definition available. + Details
Name: | aclx_MinimumNonCancellableCosts
Namespace Prefix: | aclx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Prior notification period to terminate arrangement. + References No definition available. + Details
Name: | aclx_PriorNotificationPeriodToTerminateArrangement
Namespace Prefix: | aclx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant