Consolidated Statements of Stockholders' Equity (Deficit) (Parenthetical) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($)
Statement of Stockholders' Equity [Abstract]
Net issuance costs and underwriting fees	$ 13,800

Amount of net issuance cost and underwriting fees during the period of an entity.

No definition available.

Name:	akro_NetIssuanceCostAndUnderwritingFees
Namespace Prefix:	akro_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration