Employee Defined Contribution Plans (Details) - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Mainland China Government Plan | ||||
| Defined Contribution Plan Disclosure [Line Items] | ||||
| Defined contribution plan expense | $ 24.9 | $ 26.0 | $ 25.8 | |
| 401(k) Plan | ||||
| Defined Contribution Plan Disclosure [Line Items] | ||||
| Defined contribution plan expense | $ 0.9 | $ 1.1 | $ 1.0 | |
| Employer matching contribution percentage | 100.00% | 100.00% | 100.00% | |
| Percentage of employee contribution that the employer matches | 5.00% | 5.00% | 5.00% | |
| Employers matching contribution, annual vesting percentage | 100.00% | |||
| Mandatory Provident Fund | ||||
| Defined Contribution Plan Disclosure [Line Items] | ||||
| Defined contribution plan expense | $ 0.1 | $ 0.2 | $ 0.2 | |
| Maximum | 401(k) Plan | ||||
| Defined Contribution Plan Disclosure [Line Items] | ||||
| Percentage of employees eligible compensation the employer matches | 5.00% | 5.00% | 5.00% | |