XML 76 R55.htm IDEA: XBRL DOCUMENT v3.21.2

DESCRIPTION OF ORGANIZATION AND PLAN OF BUSINESS OPERATIONS (Details) - USD ($)			3 Months Ended	4 Months Ended
	Nov. 28, 2020	Nov. 27, 2020	Mar. 31, 2021	Dec. 31, 2020	Oct. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Exercise price of warrants		$ 11.50
Proceeds from issuance of warrants				$ 8,900,000
Assets held in trust			$ 232,300,000
Threshold minimum aggregate fair market value as a percentage of the assts held in the Trust Account			80.00%
Threshold percentage of public shares subject to redemption without the Company's prior written consent			50.00%
Minimum net tangible assets upon consummation of the Business Combination			$ 5,000,001
Redemption threshold as percent of outstanding			15.00%
Obligation to redeem public shares if entity does not complete a business combination (as a percent)			100.00%
Additional period to consummate business combination			6 months
Maximum net interest to pay dissolution expenses			$ 100,000
Class A Common Stock | Maximum
Subsidiary, Sale of Stock [Line Items]
Share price			$ 9.20
Public Offering
Subsidiary, Sale of Stock [Line Items]
Number of units issued		23,000,000
Share price		$ 10.00
Gross proceeds		$ 230,000,000
Purchase price, per unit			10.10		$ 10.10
Over-allotment
Subsidiary, Sale of Stock [Line Items]
Number of units issued		3,000,000
Share price		$ 10.00
Exercise price of warrants		11.50	$ 11.50
Purchase price, per unit		$ 10.00
Private placement warrants
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued	8,900,000	8,900,000	8,900,000
Exercise price of warrants		$ 1.00	$ 1.00
Proceeds from issuance of warrants	$ 8,900,000	$ 8,900,000	$ 8,900,000
Purchase price, per unit	$ 1.00
Business Combination
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued			2,300,000
Exercise price of warrants			$ 1.00
Assets held in trust			$ 2,300,000

X

- Definition

The additional period required to consummate business combination.

+ References

No definition available.

+ Details

Name:	svsvu_ConsummateBusinessCombinationAdditionalPeriod
Namespace Prefix:	svsvu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the maximum net interest to pay dissolution expenses.

+ References

No definition available.

+ Details

Name:	svsvu_MaximumNetInterestToPayDissolutionExpenses
Namespace Prefix:	svsvu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the minimum net tangible assets upon consummation of the Business Combination.

+ References

No definition available.

+ Details

Name:	svsvu_MinimumNetTangibleAssetsUponConsummationOfBusinessCombination
Namespace Prefix:	svsvu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the threshold percentage of Obligation to redeem Public Shares if entity does not complete a Business Combination.

+ References

No definition available.

+ Details

Name:	svsvu_PercentageObligationToRedeemPublicSharesIfEntityDoesNotCompleteBusinessCombinationSource2
Namespace Prefix:	svsvu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of proceeds from sale of membership interests.

+ References

No definition available.

+ Details

Name:	svsvu_ProceedsFromIssuanceOfUnits
Namespace Prefix:	svsvu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the threshold minimum aggregate fair market value as a percentage of the assets held in the Trust Account.

+ References

No definition available.

+ Details

Name:	svsvu_ThresholdMinimumAggregateFairMarketValueAsPercentageOfAssetsHeldInTrustAccount
Namespace Prefix:	svsvu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the threshold percentage of outstanding voting securities of the target to be acquired by post-transaction company to complete business combination.

+ References

No definition available.

+ Details

Name:	svsvu_ThresholdPercentageOfOutstandingVotingSecuritiesOfTargetToBeAcquiredByPostTransactionCompanyToCompleteBusinessCombination
Namespace Prefix:	svsvu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This represents threshold percentage of Public Shares subject to redemption without the Company's prior written consent

+ References

No definition available.

+ Details

Name:	svsvu_ThresholdPercentageOfPublicSharesSubjectToRedemptionWithoutCompanysPriorWrittenConsent
Namespace Prefix:	svsvu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of new units issued during the period.

+ References

No definition available.

+ Details

Name:	svsvu_UnitsIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	svsvu_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(b))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_AssetsHeldInTrust
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesIssuedPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiarySaleOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=svsvu_BusinessCombinationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: