XML 30 R19.htm IDEA: XBRL DOCUMENT v3.21.1

FAIR VALUE MEASUREMENTS (Tables)

4 Months Ended

Dec. 31, 2020

FAIR VALUE MEASUREMENTS

Summary of gross holding losses and fair value of held-to-maturity securities

		Asset		Level		Fair Value
December 31, 2020		U.S. Treasury Securities Money Market Fund		1		232,301,973

Schedule of fair value hierarchy for liabilities measured at fair value on a recurring basis

		Level 1			Level 2			Level 3			Total
Warrant liabilities:
Public Warrants		$	18,975,000		$	—		$	—		$	18,975,000
Private Placement Warrants			—			—			14,685,000			14,685,000
Total warrant liabilities		$	18,975,000		$	0		$	14,685,000		$	33,660,000

Schedule of quantitative information regarding Level 3 fair value measurements inputs

								As of December 31,
		At issuance						2020
Exercise price		$	11.50					$	11.50
IPO price		$	10.00					$	10.00
Implied stock price range (or underlying asset price at December 31, 2020)		$	9.35	-	$	9.66		$	10.12
Volatility			14%	-	23%				21%
Term			5.75						5.70
Risk-free rate			0.46%						0.46%
Dividend yield			0.0%						0.0%

Schedule of changes in fair value of warrant liabilities

		Private						Warrant
		Placement			Public			Liabilities
Initial measurement on November 27, 2020		$	9,879,000		$	12,650,000		$	22,529,000
Change in valuation inputs or other assumptions(1)			4,806,000			6,325,000			11,131,000
Fair value as of December 31, 2020		$	14,685,000		$	18,975,000		$	33,660,000

X

- Definition

Disclosure of assumptions used in estimating the fair value of warrants.

+ References

No definition available.

+ Details

Name:	svsvu_DisclosureOfAssumptionsUsedInEstimatingFairValueOfWarrantsTableTextBlock
Namespace Prefix:	svsvu_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule of changes in the fair value of warrant liabilities.

+ References

No definition available.

+ Details

Name:	svsvu_ScheduleOfChangesInFairValueOfWarrantLiabilitiesTableTextBlock
Namespace Prefix:	svsvu_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5B
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269825-111563

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-URI http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration