Profit Appropriation and Restricted Net Assets (Details) $ in Millions |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2021
USD ($)
fund
|
Dec. 31, 2020
USD ($)
|
|
| Profit Appropriation and Restricted Net Assets | ||
| Minimum percentage of after-tax profit transferred by Chinese subsidiaries to general reserve fund | 10.00% | |
| Maximum percentage criteria for appropriation of after-tax profit of Chinese subsidiaries to general reserve fund | 50.00% | |
| Number of reserve funds except general reserve fund, appropriation at the entity's discretion | fund | 2 | |
| Minimum percentage of after-tax profit transferred by VIEs to statutory reserve fund | 10.00% | |
| Maximum percentage criteria for in appropriation of after-tax profit by VIEs to certain statutory reserve funds | 50.00% | |
| Reserves made to non-distributable general reserve/statutory surplus funds (in dollars) | $ 139.6 | $ 127.2 |
| Net assets subject to restriction for the Group (in dollars) | $ 480.7 | |
| Percent of restricted net assets of total consolidated net assets | 13.00% |