Stockholders' Equity, Warrants (Details) - $ / shares		8 Months Ended
Feb. 12, 2020	Sep. 30, 2020
Warrants [Abstract]
Period to exercise warrants after public offerings	12 months	12 months
Period to exercise warrants after business combination	30 days	30 days
Number of days to file registration statement	15 days	15 days
Period for registration statement to become effective	60 days	60 days
Limitation period to transfer, assign or sell warrants	30 days	30 days
Warrants Redemption, Common Stock Price Equals or Exceeds $18.00 [Member]
Warrants [Abstract]
Warrant redemption price (in dollars per share)	$ 0.01	$ 0.01
Notice period to redeem warrants	30 days	30 days
Number of trading days	20 days	20 days
Trading day threshold period	30 days	30 days
Warrants Redemption, Common Stock Price Equals or Exceeds $10.00 [Member]
Warrants [Abstract]
Period to redeem outstanding warrants after warrants become exercisable	90 days	90 days
Warrant redemption price (in dollars per share)	$ 0.10	$ 0.10
Notice period to redeem warrants	30 days	30 days
Trading day threshold period	30 days	30 days
Class A Common Stock [Member]
Warrants [Abstract]
Percentage of exercise price of public warrants is adjusted higher than the market value of newly issued price	115.00%	115.00%
Percentage of redemption triggered price is adjusted higher than the market value of newly issued price	180.00%	180.00%
Class A Common Stock [Member] \| Warrants Redemption, Common Stock Price Equals or Exceeds $18.00 [Member]
Warrants [Abstract]
Share price (in dollars per share)	$ 18.00	$ 18.00
Class A Common Stock [Member] \| Warrants Redemption, Common Stock Price Equals or Exceeds $10.00 [Member]
Warrants [Abstract]
Share price (in dollars per share)	10.00	10.00
Class A Common Stock [Member] \| Maximum [Member]
Warrants [Abstract]
Additional shares issued with the closing of business combination (in dollars per share)	$ 9.20	$ 9.20

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

No definition available.

Name:	lgvw_ClassOfWarrantOrRightRedemptionPriceOfWarrantsOrRights
Namespace Prefix:	lgvw_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of time in which warrant holders may not transfer, assign or sell warrants held until after the completion of the initial Business Combination, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_LimitationPeriodToTransferAssignOrSellWarrants
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period to provide written notice to redeem warrants, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_NoticePeriodToRedeemWarrants
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of trading days for common stock price to exceed threshold, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_NumberOfTradingDays
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of the exercise price of the public warrants will be adjusted (to the nearest cent) to be equal to or higher of the market value and the newly issued price.

+ References

No definition available.

+ Details

Name:	lgvw_PercentageOfExercisePriceOfPublicWarrantsIsAdjustedHigherThanMarketValueOfNewlyIssuedPrice
Namespace Prefix:	lgvw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of redemption trigger price will be adjusted (to the nearest cent) to be equal to or higher than the market value and the newly issued price.

+ References

No definition available.

+ Details

Name:	lgvw_PercentageOfRedemptionTriggeredPriceIsAdjustedHigherThanMarketValueOfNewlyIssuedPrice
Namespace Prefix:	lgvw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time required to pass after the filing of a registration statement to become effective before warrant holders may be permitted to exercise warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_PeriodForRegistrationStatementToBecomeEffective
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period for warrants to exercise after the completion of a business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_PeriodToExerciseWarrantsAfterBusinessCombination
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period for warrants to exercise after the completion of public offering, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_PeriodToExerciseWarrantsAfterPublicOfferings
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period the entity is required to file a registration statement following the closing of a Business Combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_PeriodToFileRegistrationStatement
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period to redeem outstanding warrants after warrants become exercisable, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_PeriodToRedeemOutstandingWarrantsAfterWarrantsBecomeExercisable
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share price threshold for issuance of additional shares or equity-linked securities for capital raising purposes in connection with the closing of a Business Combination.

+ References

No definition available.

+ Details

Name:	lgvw_SharePriceThresholdForIssuanceOfAdditionalSharesWithClosingOfBusinessCombination
Namespace Prefix:	lgvw_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified trading days that common stock price exceeds threshold price per share, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	lgvw_TradingDaysThreshold
Namespace Prefix:	lgvw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

- References

No definition available.

+ Details

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

- Details

Name:	us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis=lgvw_WarrantsRedemptionConditionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis=lgvw_WarrantsRedemptionConditionTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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