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Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair value, level 3 transfers out, amount	$ 0	$ 0

X

- Definition

Fair value, level 3 transfers out, amount.

+ References

No definition available.

+ Details

Name:	ikna_FairValueLevel3TransfersOutAmount
Namespace Prefix:	ikna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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