0001213900-21-043089 | 10-Q | XBRL Viewer | Northern Genesis Acquisition Corp II

Fair Value Measurements (Details) - Schedule of changes in fair value of private and public warrant liabilities	6 Months Ended
Jun. 30, 2021 USD ($)
Fair Value Measurements (Details) - Schedule of changes in fair value of private and public warrant liabilities [Line Items]
Initial measurement on January 15, 2021	$ 30,583,467

Summary of Significant Accounting Policies (Details) - Schedule of calculation of basic and diluted net income (loss) per common share - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2021
Numerator: Earnings allocable to common stock subject to possible redemption
Interest earned on marketable securities held in Trust Account	$ 15,025	$ (23,366)
Net income allocable to common stock subject to possible redemption
Denominator: Weighted Average common stock subject to possible redemption
Basic and diluted weighted average shares outstanding, common stock subject to possible redemption (in Shares)	37,153,752	61,945,851
Denominator: Weighted Average Non-redeemable Common stock
Basic and diluted weighted average shares outstanding, Non-redeemable Common stock	$ 14,596,248	$ 14,393,060

Public Offering (Details)	6 Months Ended
Jun. 30, 2021
Public Offering (Details) [Line Items]
Public offering, description	Each Unit consists of one share of common stock and one-third of one redeemable warrant redeemable warrant (“Public Warrant”). Each whole Public Warrant entitles the holder to purchase one share of common stock at a price of $11.50 per share, subject to adjustment (see Note 8).

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Notes Details Summary of Significant Accounting Policies (Details) - Schedule of calculation of basic and diluted net income (loss) per common share Public Offering (Details) Fair Value Measurements (Details) - Schedule of changes in fair value of private and public warrant liabilities Uncategorized Uncategorized Items - f10q0621_northerngen2_htm.xml All Reports

Label	Element	Value
StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	ngab_StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	$ (3,652)
StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	ngab_StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	(365,244,981)
StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	ngab_StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	(365,248,633)
StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption	ngab_StockIssueDuringPeriodValueSharesSubjectToPossibleRedemption
TransactionCost	ngab_TransactionCost	23,221,415
InitialClassificationOfFPALiability	ngab_InitialClassificationOfFPALiability	(966,667)
InitialClassificationOfFPALiability	ngab_InitialClassificationOfFPALiability	(966,667)
InitialClassificationOfFPALiability	ngab_InitialClassificationOfFPALiability
InitialClassificationOfFPALiability	ngab_InitialClassificationOfFPALiability
SharesSubjectToPossibleRedemption	ngab_SharesSubjectToPossibleRedemption	41,400,000
SharesSubjectToPossibleRedemption	ngab_SharesSubjectToPossibleRedemption	41,400,000
SharesSubjectToPossibleRedemption	ngab_SharesSubjectToPossibleRedemption	0
InitialClassificationOfWarrantLiabilities	ngab_InitialClassificationOfWarrantLiabilities	$ 30,583,467
FPALiability	ngab_FPALiability	1,106,667
FPALiability	ngab_FPALiability
SponsorSupportAgreementAndFoundationInvestorSupportAgreement	ngab_SponsorSupportAgreementAndFoundationInvestorSupportAgreement	(i) a relative percentage of up to 1,130,239 Founder Shares to the extent that the Sponsor’s institutional investors fail to hold, at the Closing, at least one-half of the shares of NGA Common Stock issued to such investors in connection with our initial public offering, and (ii) up to 627,910 Founder Shares (currently expected to be 393,025 Founder Shares) in connection with the Forward Purchase Agreement investment.
ProceedsFromIssuanceBusinessCombination	ngab_ProceedsFromIssuanceBusinessCombination	$ 75,000,000
CommonStocksSharesOutstanding	ngab_CommonStocksSharesOutstanding	10,350,000
ChangeInFairValueOfFPALiability	ngab_ChangeInFairValueOfFPALiability	$ 140,000
ChangeInFairValueOfFPALiability	ngab_ChangeInFairValueOfFPALiability	140,000
BorrowingsOutstanding	ngab_BorrowingsOutstanding	0
BorrowingsOutstanding	ngab_BorrowingsOutstanding	117,917
AggregateMaximumAmount	ngab_AggregateMaximumAmount	75,000,000
AggregateMaximumAmount	ngab_AggregateMaximumAmount	75,000,000
AggregateMaximumAmount	ngab_AggregateMaximumAmount	150,000,000
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(63)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(6,295,906)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(6,295,969)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(425)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(119,812)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(42,335,161)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption	(42,455,398)
ChangeInValueOfCommonStockSubjectToRedemption	ngab_ChangeInValueOfCommonStockSubjectToRedemption
ChangeInValueOfCommonStockSubjectToRedemptionShares	ngab_ChangeInValueOfCommonStockSubjectToRedemptionShares	(628,889)
ChangeInValueOfCommonStockSubjectToRedemptionShares	ngab_ChangeInValueOfCommonStockSubjectToRedemptionShares	(4,246,248)
DeferredUnderwritingFeePayable	ngab_DeferredUnderwritingFeePayable	$ 14,490,000
DeferredUnderwritingFeePayable	ngab_DeferredUnderwritingFeePayable
DeferredUnderwritingFees	ngab_DeferredUnderwritingFees	14,490,000
AccruedOfferingCosts	ngab_AccruedOfferingCosts	107,000
AccruedOfferingCosts	ngab_AccruedOfferingCosts
NetInterestToDissolutionExpenses	ngab_NetInterestToDissolutionExpenses	100,000
OfferingCostsAllocatedToWarrantAndFPAliabilities	ngab_OfferingCostsAllocatedToWarrantAndFPAliabilities	1,148,289
OfferingCostsAllocatedToWarrantAndFPAliabilities	ngab_OfferingCostsAllocatedToWarrantAndFPAliabilities
SaleOfPrivatePlacementWarrants	ngab_SaleOfPrivatePlacementWarrants	6,686,667
BasicAndDilutedWeightedAverageSharesOutstandingNonredeemableCommonStock	ngab_BasicAndDilutedWeightedAverageSharesOutstandingNonredeemableCommonStock	14,596,248
BasicAndDilutedWeightedAverageSharesOutstandingNonredeemableCommonStock	ngab_BasicAndDilutedWeightedAverageSharesOutstandingNonredeemableCommonStock	14,393,060
ProjectedObligationsExpectsToPay	ngab_ProjectedObligationsExpectsToPay	$ 2,000,000
FairValueOfPrivatePlacementWarrants	ngab_FairValueOfPrivatePlacementWarrants	1.54
FairValueOfPrivatePlacementWarrants	ngab_FairValueOfPrivatePlacementWarrants	$ 1.74
ForwardPurchaseAgreementDescription	ngab_ForwardPurchaseAgreementDescription	the Company entered into the forward purchase agreement (the “Forward Purchase Agreement”) with Northern Genesis Capital LLC (the “forward purchase investor”), pursuant to which, if the Company determines to raise capital by issuing equity securities in connection with the closing of its initial business combination, the forward purchase investor, an entity which is affiliated with the Company’s Sponsor, agreed and has the first right to purchase, subject to certain conditions, in an aggregate maximum amount of $75,000,000 of either (i) a number of units (the “forward purchase units”), consisting of one share of Class A common stock (the “forward purchase shares”) and one-sixth of one redeemable warrant (the “forward purchase warrants”), for $10.00 per unit or (ii) a number of forward purchase shares for $9.75 per share (such forward purchase shares valued at $9.75 per share or the forward purchase units, as the case may be, the “forward purchase securities”), in a private placement that would close simultaneously with the closing of the Initial Business Combination.
FranchiseAndIncomeTaxes	ngab_FranchiseAndIncomeTaxes	$ 414,000,000
HeldInTheTrustAccountDescription	ngab_HeldInTheTrustAccountDescription	In order to protect the amounts held in the Trust Account, the Sponsor will agree to be liable to the Company if and to the extent any claims by a vendor for services rendered or products sold to the Company, or a prospective target business with which the Company has discussed entering into a transaction agreement, reduce the amount of funds in the Trust Account to below (i) $10.00 per Public Share or (ii) such lesser amount per Public Share held in the Trust Account as of the date of the liquidation of the Trust Account due to reductions in the value of trust assets, in each case net of the interest which may be withdrawn to pay the Company’s tax obligation and up to $100,000 for liquidation excepts, except as to any claims by a third party who executed a waiver of any and all rights to seek access to the Trust Account (even if such waiver is deemed to be unenforceable) and except as to any claims under the Company’s indemnity of the underwriters of Initial Public Offering against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the “Securities Act”).
OfficeRentPerMonth	ngab_OfficeRentPerMonth	$ 10,000
SaleOfStockNumberOfShareIssuedInTransaction	ngab_SaleOfStockNumberOfShareIssuedInTransaction	8,625,000
InitialPayment	ngab_InitialPayment	$ 440,000
InitialPayment	ngab_InitialPayment	200,000
LossOnInitialIssuanceOfPrivateWarrants	ngab_LossOnInitialIssuanceOfPrivateWarrants	267,467
LossOnInitialIssuanceOfPrivateWarrants	ngab_LossOnInitialIssuanceOfPrivateWarrants
GrossProceedsFromInitialPublicOffering	ngab_GrossProceedsFromInitialPublicOffering	414,000,000
PaymentToServices	ngab_PaymentToServices	30,000
PaymentToServices	ngab_PaymentToServices	60,000
OfferingCostsAllocableToWarrantLiabilities	ngab_OfferingCostsAllocableToWarrantLiabilities	$ 1,148,289
OrdinarySharesSubjectToPossibleRedemption	ngab_OrdinarySharesSubjectToPossibleRedemption	41,400,000
OrdinarySharesSubjectToPossibleRedemption	ngab_OrdinarySharesSubjectToPossibleRedemption	0
SaleOfWarrants	ngab_SaleOfWarrants	6,686,667
WarrantExpireTerm	ngab_WarrantExpireTerm	5 years
ForwardPurchaseUnits	ngab_ForwardPurchaseUnits	7,500,000
PurchaseOfAggregateShares	ngab_PurchaseOfAggregateShares	20,486,667
AmountHeldOutsideTrustAccount	ngab_AmountHeldOutsideTrustAccount	$ 1,080,000
PersonnelServicesAgreementPaymentAmount	ngab_PersonnelServicesAgreementPaymentAmount	80,000
InitialClassificationOfCommonStockSubjectToPossibleRedemption	ngab_InitialClassificationOfCommonStockSubjectToPossibleRedemption	365,248,633
NetTangibleAssets	ngab_NetTangibleAssets	5,000,001
WorkingCapitalLoans	ngab_WorkingCapitalLoans	3,000,000
ChangeInValueOfCommonStockSubjectToPossibleRedemption	ngab_ChangeInValueOfCommonStockSubjectToPossibleRedemption	$ 48,751,367
StockIssueDuringPeriodSharesSubjectToPossibleRedemption	ngab_StockIssueDuringPeriodSharesSubjectToPossibleRedemption	(36,524,863)