v3.25.3
Product Revenue - Additional Information (Detail) - USD ($)
9 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Disaggregation of Revenue [Line Items]    
Accounts receivable $ 31,877,000 $ 30,766,000
Bad debt write-offs 0  
Credit losses 0 0
Product Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Accounts receivable $ 26,500,000 $ 27,800,000