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Summary of Significant Accounting Policies - Additional Information (Details) - Customer	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Accounting Policies [Abstract]
Number of Customer	1	1
Customers percentage of total revenue	100.00%	100.00%

X

- Definition

Customers percentage of total revenue.

+ References

No definition available.

+ Details

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X

- Definition

Number of customer.

+ References

No definition available.

+ Details

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Namespace Prefix:	acet_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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