represents the information pertaining to Adjustment of warrant derivative liability Transfer into Level 3.

No definition available.

Name:	lcyau_AdjustmentOfWarrantDerivativeLiabilityTransferIntoLevel3
Namespace Prefix:	lcyau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the information pertaining to change in fair value warrant derivative liability.

+ References

No definition available.

+ Details

Name:	lcyau_ChangeInFairValueWarrantDerivativeLiability
Namespace Prefix:	lcyau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the information pertaining to Gain on derivative liability warrant.

+ References

No definition available.

+ Details

Name:	lcyau_GainOnDerivativeLiabilityWarrant
Namespace Prefix:	lcyau_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Value of input used to measure derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

+ Details

Name:	us-gaap_DerivativeLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Par value per share of mandatory redeemable financial instrument classified as liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109262807&loc=d3e22094-110879

+ Details

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

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputSharePriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendPaymentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

Fair Value Measurements (Details) - Level 3	3 Months Ended
Fair Value Measurements (Details) - Level 3	Mar. 31, 2021 USD ($)	Oct. 14, 2020 Y $ / shares USD ($)
Fair Value Measurements
December 31, 2020	$ 0
Transfer into Level 3	18,720,000
Loss on derivative liability	960,000
Ending Balance	$ 19,680,000
Public Offering
Fair Value Measurements
Unobservable inputs \| $ / shares		9.96
Public Offering \| Measurement Input, Risk Free Interest Rate [Member]
Fair Value Measurements
Unobservable inputs		0.38
Public Offering \| Measurement Input, Price Volatility [Member]
Fair Value Measurements
Unobservable inputs		19.0
Public Offering \| Measurement Input, Share Price [Member]
Fair Value Measurements
Unobservable inputs \| $ / shares		9.58
Public Offering \| Measurement Input, Expected Term [Member]
Fair Value Measurements
Unobservable inputs \| Y		0.75
Public Offering \| Measurement Input, Expected Dividend Payment [Member]
Fair Value Measurements
Unobservable inputs		0
Public Offering \| Public Warrants
Fair Value Measurements
Fair value per warrant \| $ / shares		$ 1.13
Public Offering \| Sponsor Warrants
Fair Value Measurements
Fair value per warrant \| $ / shares		$ 1.15