Long-term Investments - Impairment (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Long-term Investments | |||
| Impairment charge | $ 106,800,000 | $ 211,985,000 | $ 249,935,000 |
| Write-offs of prepayments | 0 | 1,500,000 | $ 19,100,000 |
| Equity Method | |||
| Long-term Investments | |||
| Other impairments | 30,700,000 | ||
| A game company | Equity Method | |||
| Long-term Investments | |||
| Impairment charge | 39,300,000 | ||
| A game company | Cost Method | |||
| Long-term Investments | |||
| Impairment charge | 39,300,000 | ||
| Loans to investees. | |||
| Long-term Investments | |||
| Impairment charge | 82,200,000 | ||
| Yixia Tech | Cost Method | |||
| Long-term Investments | |||
| Impairment charge | $ 75,300,000 | ||
| Equity Investee In ECommerce Business | Cost Method | |||
| Long-term Investments | |||
| Impairment charge | $ 59,800,000 | ||