Other Receivables (Additional Information) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Apr. 30, 2024
Other Receivables, Net, Current [Abstract]
Other receivable	$ 3,629	$ 3,635	$ 3,500

Amount due from parties in nontrade transactions, classified as other.

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Name:	us-gaap_OtherReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Syndax Pharmaceuticals Inc 10-Q