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Segment Information - Additional Information (Detail)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
shares
Sep. 30, 2025
USD ($)
Segment
shares
Segment Reporting Information [Line Items]    
Number of operating segment | Segment   2
Gyre | Gyre Pharmaceuticals    
Segment Reporting Information [Line Items]    
Capital contribution | $ $ 1,280 $ 1,280
Additional shares | shares 9,184,910 9,184,910
CPI Contribution    
Segment Reporting Information [Line Items]    
Indirect ownership interest   56.00%
CPI Contribution | Gyre    
Segment Reporting Information [Line Items]    
Indirect ownership interest   61.70%