Commitments and Contingencies (Details) - USD ($)	Mar. 31, 2021	Mar. 09, 2021
Commitments and Contingencies
Deferred fee per unit	$ 3.5
Deferred underwriting fee payable	$ 9,660,000	$ 9,660,000

The carrying value as of balance sheet date of underwriting fees payable or deferred, classified as noncurrent.

No definition available.

Name:	avtcu_DeferredOfferingCostsNoncurrent
Namespace Prefix:	avtcu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant