Name:	adn_ContractualObligationQuantityFiscalYearMaturityAbstract
Namespace Prefix:	adn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Quantity of contractual obligation quantity in fourth fiscal year following current fiscal year.

No definition available.

Name:	adn_ContractualObligationQuantityYearFour
Namespace Prefix:	adn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

Quantity of contractual obligation quantity in next fiscal year following current fiscal year.

No definition available.

Name:	adn_ContractualObligationQuantityYearOne
Namespace Prefix:	adn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

Quantity of contractual obligation quantity in third fiscal year following current fiscal year.

No definition available.

Name:	adn_ContractualObligationQuantityYearThree
Namespace Prefix:	adn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

Quantity of contractual obligation quantity in second fiscal year following current fiscal year.

No definition available.

Name:	adn_ContractualObligationQuantityYearTwo
Namespace Prefix:	adn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

No definition available.

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_ContractualObligationDueInFourthYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_ContractualObligationDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_ContractualObligationDueInSecondYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of contractual obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.

Name:	us-gaap_ContractualObligationDueInThirdYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.