Represents information about Federal Depository Insurance Coverage.

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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-Publisher FASB
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Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Nov. 27, 2020	Sep. 30, 2020	Aug. 31, 2020	Dec. 31, 2019
Temporary equity, shares outstanding	6,000,000	6,000,000	6,000,000	6,000,000				6,000,000
Unrecognized tax benefits		$ 0
Purchase of aggregate shares		15,000	55,000
SPRING VALLEY ACQUISITION CORP
Unrecognized tax benefits	$ 0	$ 0
Unrecognized tax benefits accrued for interest and penalties	$ 0	0
Federal depository insurance coverage		$ 250,000
SPRING VALLEY ACQUISITION CORP \| Class A Common Stock
Temporary equity, shares outstanding	23,000,000	23,000,000
SPRING VALLEY ACQUISITION CORP \| Class A Common Stock \| Private Placement Warrants
Purchase of aggregate shares	22,529,000	22,529,000
SPRING VALLEY ACQUISITION CORP \| Class A Ordinary Shares Subject to Possible Redemption.
Temporary equity, shares outstanding		23,000,000	23,000,000			23,000,000	23,000,000
SPRING VALLEY ACQUISITION CORP \| Class A Ordinary Shares Subject to Possible Redemption. \| Initial Public Offering
Temporary equity, shares outstanding		23,000,000			23,000,000