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Fair Value Measurements - Revenue by Major Customers by Reporting Segments (Details) - Customer Concentration Risk | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Total Gross Product Sales | Customer A |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 41.00% | 44.00% |
Total Gross Product Sales | Customer B |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 28.00% | 28.00% |
Total Gross Product Sales | Customer C |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 17.00% | 13.00% |
Accounts Receivable | Customer A |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 45.00% |  | 41.00%
Accounts Receivable | Customer B |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 29.00% |  | 37.00%
Accounts Receivable | Customer C |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage | 15.00% |  |
Accounts Receivable | Customer D |  |  |
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] |  |  |
Concentration risk, percentage |  |  | 11.00%

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