Equity Method Investment (Details) - USD ($) $ in Thousands |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
Oct. 31, 2020 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Schedule of Equity Method Investments [Line Items] | |||
| Gain on deconsolidation of subsidiary | $ 37,459 | ||
| Loss from equity method investment | $ (4,831) | (234) | |
| Angel Pharmaceuticals Co. Ltd | |||
| Schedule of Equity Method Investments [Line Items] | |||
| Ownership interest (as percent) | 53.20% | 49.70% | |
| Exclusive grant back period | 7 years | ||
| Equity interest at its fair value | 37,500 | ||
| Gain on deconsolidation of subsidiary | 37,500 | ||
| Equity reserved (as percent) | 7.00% | ||
| Loss from equity method investment | $ 0 | $ 200 | |