Asset Purchase Agreement (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Aug. 31, 2025	Dec. 31, 2025
Asset Purchase Agreement
Initial payments	$ 10.0
Contingent milestone payments	$ 90.0
Gains on sale of non-financial assets		$ 10.2

Amount of contingent milestone payments receivable from asset sale agreement.

No definition available.

Name:	gpcr_AssetSaleContingentMilestonePayments
Namespace Prefix:	gpcr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration