Summary of Significant Accounting Policies - Sales and Marketing Expenses (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Summary of Significant Accounting Policies | |||
| Advertising and promotion expenses | $ 9.6 | $ 15.0 | $ 17.4 |