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Related Party Transactions - Founder Shares (Details) - SPRING VALLEY ACQUISITION CORP - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 22, 2020 | Sep. 30, 2020 | Aug. 21, 2020 | Sep. 30, 2020 | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Aug. 31, 2020 | Aug. 22, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares subject to forfeiture, as a percent of issued and outstanding shares (as a percent) |  |  | 20.00% |  | 20.00% |  |  |  |
Shares subject to forfeiture |  |  |  |  | 750,000 |  |  |  |
Stock price trigger to transfer, assign or sell any shares or warrants of the company, after the completion of the initial business combination (in dollars per share) |  |  | $ 12.00 |  | $ 12.00 |  |  |  |
Threshold trading days for transfer, assign or sale of shares or warrants, after the completion of the initial business combination |  |  |  |  | 20 days |  |  |  |
Restrictions on transfer period of time after business combination completion |  |  |  |  | 1 year |  |  |  |
Threshold period after the business combination in which the 20 trading days within any 30 trading day period commences |  |  | 30 days |  | 30 days |  |  |  |
Threshold period for not to transfer, assign or sell any of their shares or warrants after the completion of the initial business combination |  |  | 150 days |  | 150 days |  |  |  |
Each of the Company's directors |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Number of shares transferred |  |  |  | 120,000 |  |  |  |  |
Class B ordinary share |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Common shares, shares outstanding |  | 5,750,000 |  | 5,750,000 | 5,750,000 | 5,750,000 | 5,750,000 | 5,750,000 |
Over-allotment option | Class B ordinary share |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Shares subject to forfeiture |  |  | 750,000 |  |  |  |  |  |
Shares no longer subject to forfeiture |  |  | 750,000 |  | 750,000 |  |  |  |
Sponsor | Class B ordinary share |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Consideration received |  |  | $ 25,000 |  |  |  |  |  |
Shares issued |  |  | 7,187,500 |  |  |  |  |  |
Number of shares surrender | 1,437,500 |  |  |  |  |  |  |  |
Common shares, shares outstanding |  |  |  |  |  |  |  |  | 5,750,000
Beneficial Owner | Each of the Company's directors |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Number of shares transferred |  | 40,000 |  | 40,000 |  |  |  |  |
Beneficial Owner | Class B ordinary share |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Consideration received | $ 0 |  | $ 25,000 |  |  |  |  |  |
Shares issued |  |  | 7,187,500 |  |  |  |  |  |
Number of shares surrender | 1,437,500 |  |  |  |  |  |  |  |
Common shares, shares outstanding | 5,750,000 |  |  |  |  |  |  |  |

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