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Commitments and Contingencies (Details) - USD ($)		8 Months Ended
	Feb. 12, 2020	Sep. 30, 2020	Jun. 26, 2020
Underwriting Agreement [Abstract]
Sale of stock underwriter option term	45 days	45 days
Underwriting fee discount (in dollars per share)	$ 0.20	$ 0.20
Underwriting expense	$ 7,200,000
Deferred underwriting discount (in dollars per share)	$ 0.35	$ 0.35
Deferred underwriting fees	$ 12,600,000	$ 14,490,000	$ 14,490,000
Over-Allotment Option [Member]
Underwriting Agreement [Abstract]
Units that can be purchased to cover over-allotments (in shares)	5,400,000	5,400,000
Underwriting expense	$ 8,280,000	$ 8,280,000
Deferred underwriting fees	$ 14,490,000

X

- Definition

Per share deferred fee proceeds of an Initial Public Offering paid to the underwriter.

+ References

No definition available.

+ Details

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

X

- Definition

Carrying value as of the balance sheet date of outstanding underwriting fee payable initially due after one year or beyond the operating cycle if longer, excluding current portion.

+ References

No definition available.

+ Details

Name:	lgvw_DeferredUnderwritingFeePayableNonCurrent
Namespace Prefix:	lgvw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Period of underwriter to purchase options.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	lgvw_UnderwritingAgreementAbstract
Namespace Prefix:	lgvw_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share or per unit amount of underwriting discount.

+ References

No definition available.

+ Details

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

X

- Definition

The maximum number of shares that can be purchased by underwriters to cover over-allotments.

+ References

No definition available.

+ Details

Name:	lgvw_UnitsThatCanBePurchasedToCoverOverAllotments
Namespace Prefix:	lgvw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Cash paid for expenses incurred during underwriting activities (the process to review insurance applications, evaluate risks, accept or reject applications, and determine the premiums to be charged) for insurance companies.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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