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Fair Value Measurements - Additional Information (Details) $ in Millions | Jun. 30, 2021 USD ($)
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Fair Value Disclosures [Abstract] |
Estimated fair value of the CVR liability | $ 0

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- Definition Estimated fair value of CVR liability. + References No definition available. + Details
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Namespace Prefix: | acet_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration