Commitments and Contingencies - Summary of Expected Undiscounted Cashflow (Detail) $ in Thousands	Dec. 31, 2024 USD ($)
Leases [Abstract]
2025	$ 873
Total	$ 873

Lessor operating sub lease payments to be received next twelve months.

No definition available.

Name:	artv_LessorOperatingSubLeasePaymentsToBeReceivedNextTwelveMonths
Namespace Prefix:	artv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant