Label	Element	Value
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	$ 5,453,000
Dividends, Preferred Stock	us-gaap_DividendsPreferredStock	413,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	704,000
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	48,000
Carvana Group [Member]
Adjustments To Additional Paid In Capital, Deferred Tax Assets, Valuation Allowance, Basis Difference In Acquired Units	cvna_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAssetsValuationAllowanceBasisDifferenceInAcquiredUnits	20,523,000
Adjustments To Additional Paid In Capital, Deferred Tax Assets, Basis Difference In Acquired Units	cvna_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAssetsBasisDifferenceInAcquiredUnits	20,523,000
Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Conversion of Units	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	(174,144,000)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5,453,000
Dividends, Preferred Stock	us-gaap_DividendsPreferredStock	413,000
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	205,785,000
Noncontrolling Interest, Other Adjustment	cvna_NoncontrollingInterestOtherAdjustment	340,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	704,000
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	(1,000)
Stock Issued During Period, Value, Stock Options Exercised	us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	48,000
Additional Paid-in Capital [Member] | Carvana Group [Member]
Adjustments To Additional Paid In Capital, Deferred Tax Assets, Valuation Allowance, Basis Difference In Acquired Units	cvna_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAssetsValuationAllowanceBasisDifferenceInAcquiredUnits	20,523,000
Adjustments To Additional Paid In Capital, Deferred Tax Assets, Basis Difference In Acquired Units	cvna_AdjustmentsToAdditionalPaidInCapitalDeferredTaxAssetsBasisDifferenceInAcquiredUnits	20,523,000
Retained Earnings [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	(12,899,000)
Noncontrolling Interest [Member]
Stock Issued During Period, Value, Conversion of Units	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	259,254,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	(101,475,000)
Noncontrolling Interest, Other Adjustment	cvna_NoncontrollingInterestOtherAdjustment	(340,000)
Member Units [Member]
Stock Issued During Period, Value, Conversion of Units	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	(85,227,000)
Limited Liability Company (LLC) Members' Equity, Unit-based Payment Arrangement	us-gaap_LimitedLiabilityCompanyLLCMembersEquityUnitBasedCompensation	158,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	(49,942,000)
Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock	us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock	9,439,000
Stock Issued During Period, Value, Conversion of Convertible Securities	us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	$ 260,411,000
Common Class A [Member] | Common Stock [Member]
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation	47,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	us-gaap_MinorityInterestDecreaseFromRedemptions	$ (2,000)
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	15,000
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	$ 1,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	533,000
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	15,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised	3,000
Noncontrolling Interest, Decrease From Redemption Or Purchase Of Interest, Shares	cvna_NoncontrollingInterestDecreaseFromRedemptionOrPurchaseOfInterestShares	(2,607,000)
Convertible Preferred Stock [Member] | Preferred Stock [Member]
Equity Instrument, Convertible, Beneficial Conversion Feature Accretion	cvna_EquityInstrumentConvertibleBeneficialConversionFeatureAccretion	$ (1,237,000)
Adjustments To Additional Paid In Capital, Convertible Equity With Conversion Feature	cvna_AdjustmentsToAdditionalPaidInCapitalConvertibleEquityWithConversionFeature	(2,617,000)
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	$ 98,507,000
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	100,000
Convertible Preferred Stock [Member] | Additional Paid-in Capital [Member]
Equity Instrument, Convertible, Beneficial Conversion Feature Accretion	cvna_EquityInstrumentConvertibleBeneficialConversionFeatureAccretion	$ 1,237,000
Adjustments To Additional Paid In Capital, Convertible Equity With Conversion Feature	cvna_AdjustmentsToAdditionalPaidInCapitalConvertibleEquityWithConversionFeature	2,617,000
Common Class B [Member]
Stock Issued During Period, Value, Conversion of Units	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	85,227,000
Common Class B [Member] | Common Stock [Member]
Stock Issued During Period, Value, Conversion of Units	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	$ 117,000
Stock Issued During Period, Shares, Conversion of Units	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits	117,236,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	us-gaap_MinorityInterestDecreaseFromRedemptions	$ 2,000
Noncontrolling Interest, Decrease From Redemption Or Purchase Of Interest, Shares	cvna_NoncontrollingInterestDecreaseFromRedemptionOrPurchaseOfInterestShares	2,572,000