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Fair Value Measurements and Fair Value of Financial Instruments - Additional Information (Detail)	Jun. 30, 2022 USD ($)
Fair Value Disclosures [Abstract]
Marketable securities other-than-temporarily impaired	$ 0

X

- Definition

Other than temporary impaired investments available for sale securities.

+ References

No definition available.

+ Details

Name:	advm_OtherThanTemporaryImpairedInvestmentsAvailableForSaleSecurities
Namespace Prefix:	advm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration