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Fair Value Measurements - Additional information (Details) - SPRING VALLEY ACQUISITION CORP - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Fair value assets, Transfers from Level 1 to Level 2 | $ 0 | $ 0
Fair value assets, Transfers from Level 2 to Level 1 | 0 | 0
Fair value assets, Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Fair value liabilities, Transfers from Level 1 to Level 2 | 0 | 0
Fair value liabilities, Transfers from Level 2 to Level 1 | 0 | 0
Fair value liabilities, Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | $ 0 | $ 0

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- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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