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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

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-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

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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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-Section 50
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+ References

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