Name:	lgv_AdditionalSharesIssuedWithClosingOfBusinessCombination
Namespace Prefix:	lgv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Name:	lgv_NoticePeriodToRedeemWarrants
Namespace Prefix:	lgv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	lgv_NumberOfTradingDays
Namespace Prefix:	lgv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Percentage of the aggregate gross proceeds from such issuances represent the total equity proceeds, and interest thereon, available for the funding of a Business Combination on the date of the completion of a Business Combination (net of redemptions).

No definition available.

Name:	lgv_PercentageOfAggregateGrossProceedsOfIssuanceAvailableForFundingOfBusinessCombination
Namespace Prefix:	lgv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	lgv_PercentageOfExercisePriceOfPublicWarrantsIsAdjustedHigherThanTheMarketValueOfNewlyIssuedPrice
Namespace Prefix:	lgv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	lgv_PercentageOfRedemptionTriggeredPriceIsAdjustedHigherThanTheMarketValueOfNewlyIssuedPrice
Namespace Prefix:	lgv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	lgv_PeriodForRegistrationStatementToBecomeEffective
Namespace Prefix:	lgv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	lgv_PeriodToExerciseWarrantsAfterBusinessCombination
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Data Type:	xbrli:durationItemType
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Period Type:	duration

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

No definition available.

Name:	lgv_PeriodToFileRegistrationStatementAfterInitialBusinessCombination
Namespace Prefix:	lgv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Threshold price per share of ordinary shares to redeem warrants for cash once the warrants become exercisable.

No definition available.

Name:	lgv_SharePriceThresholdToRedeemWarrantsForCash
Namespace Prefix:	lgv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Name:	lgv_TradingDaysThreshold
Namespace Prefix:	lgv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of warrants or rights outstanding.

No definition available.

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

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

No definition available.

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

- References

No definition available.

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

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgv_PublicWarrantsMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_ClassOfWarrantOrRightAxis=lgv_PrivatePlacementWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis=lgv_WarrantsAndRightsSubjectToMandatoryRedemptionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
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