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Equity Investment - Additional Information (Detail) - USD ($) shares in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Apr. 01, 2020 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Bi Pa |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Cost method ownership percentage |  | 15.00% | 15.00% |
Impairment of investments |  | $ 0 | $ 0 |
Investments value |  | 2,884,000 |  | $ 2,884,000
Clean Seed Capital Group Ltd |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |
Equity Method Investment Shares Purchased | 6,250 |  |  |
Equity investment ownership position | 8.00% |  |  |
Joint venture, consideration | $ 1,190,000 |  |  |
Fair value of stock |  | 1,599,000 |  | $ 1,516,000
Gain from equity method investment |  | $ 83,000 | $ 1,066,000 |

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