v3.26.3
Summary of Significant Accounting Policies - Schedule of Concentration Credit Risk (Detail) - Customer Concentration Risk [Member]
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Account Receivable [Member] | Customer A [Member]          
Product Information [Line Items]          
Percentage of credit risk     30.00%   18.00%
Account Receivable [Member] | Customer B [Member]          
Product Information [Line Items]          
Percentage of credit risk     30.00%   15.00%
Account Receivable [Member] | Customer C [Member]          
Product Information [Line Items]          
Percentage of credit risk     25.00%   21.00%
Account Receivable [Member] | Customer D [Member]          
Product Information [Line Items]          
Percentage of credit risk         12.00%
Account Receivable [Member] | Customer E [Member]          
Product Information [Line Items]          
Percentage of credit risk         16.00%
Gross Product Revenue [Member] | Customer A [Member]          
Product Information [Line Items]          
Percentage of credit risk 27.00% 25.00% 25.00% 22.00%  
Gross Product Revenue [Member] | Customer B [Member]          
Product Information [Line Items]          
Percentage of credit risk 24.00% 23.00% 25.00% 24.00%  
Gross Product Revenue [Member] | Customer C [Member]          
Product Information [Line Items]          
Percentage of credit risk 22.00% 21.00% 20.00% 21.00%  
Gross Product Revenue [Member] | Customer D [Member]          
Product Information [Line Items]          
Percentage of credit risk   14.00%   13.00%