$CDLX
Cardlytics, Inc. Stock $cdlx

$cdlx Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000166607121000029 Filed on March 01, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2018 Q4
Revenue	$67.08M	$69.29M	$47.82M
YoY Change	-3.19%	44.9%	21.77%
Cost Of Revenue	$38.39M	$38.99M	$26.22M
YoY Change	-1.54%	48.7%	17.26%
Gross Profit	$28.69M	$30.31M	$21.60M
YoY Change	-5.34%	40.32%	27.74%
Gross Profit Margin	42.77%	43.74%	45.17%
Selling, General & Admin	$27.71M	$24.74M	$27.83M
YoY Change	12.0%	-11.1%	76.7%
% of Gross Profit	96.58%	81.62%	128.84%
Research & Development	$5.090M	$2.960M	$3.770M
YoY Change	71.96%	-21.49%	43.89%
% of Gross Profit	17.74%	9.77%	17.45%
Depreciation & Amortization	$2.020M	$1.360M	$810.0K
YoY Change	48.53%	67.9%	10.96%
% of Gross Profit	7.04%	4.49%	3.75%
Operating Expenses	$34.81M	$29.05M	$32.41M
YoY Change	19.83%	-10.37%	69.69%
Operating Profit	-$6.120M	$1.260M	-$10.81M
YoY Change	-585.71%	-111.66%	393.61%
Interest Expense	-$660.0K	$310.0K	-$760.0K
YoY Change	-312.9%	-140.79%	-59.14%
% of Operating Profit		24.6%
Other Income/Expense, Net		$1.860M	$0.00
YoY Change
Pretax Income	-$6.780M	$3.430M	-$11.57M
YoY Change	-297.67%	-129.65%	184.98%
Income Tax	$0.00	$0.00	$0.00
% Of Pretax Income		0.0%
Net Earnings	-$6.780M	$3.430M	-$11.57M
YoY Change	-297.67%	-129.65%	184.98%
Net Earnings / Revenue	-10.11%	4.95%	-24.19%
Basic Earnings Per Share
Diluted Earnings Per Share	-$244.7K	$131.0K	-$531.0K
COMMON SHARES
Basic Shares Outstanding	27.46M shares	25.71M shares	21.41M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2020 Q4	2019 Q4	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$293.2M	$104.5M	$39.60M
YoY Change	180.57%	163.89%	85.92%
Cash & Equivalents	$293.2M	$104.5M	$39.62M
Short-Term Investments
Other Short-Term Assets	$5.800M	$5.900M	$24.20M
YoY Change	-1.69%	-75.62%	1052.38%
Inventory
Prepaid Expenses
Receivables	$81.25M	$81.45M	$58.13M
Other Receivables	$5.306M	$3.908M	$2.417M
Total Short-Term Assets	$385.6M	$195.7M	$124.4M
YoY Change	97.0%	57.38%	66.65%
LONG-TERM ASSETS
Property, Plant & Equipment	$13.87M	$14.29M	$10.23M
YoY Change	-2.97%	39.69%	39.77%
Goodwill	$0.00
YoY Change
Intangibles	$447.0K	$389.0K	$370.0K
YoY Change	14.91%	5.14%	-29.92%
Long-Term Investments
YoY Change
Other Assets	$1.786M	$1.706M	$1.293M
YoY Change	4.69%	31.94%	-69.39%
Total Long-Term Assets	$36.95M	$28.58M	$29.40M
YoY Change	29.26%	-2.76%	12.5%
TOTAL ASSETS
Total Short-Term Assets	$385.6M	$195.7M	$124.4M
Total Long-Term Assets	$36.95M	$28.58M	$29.40M
Total Assets	$422.5M	$224.3M	$153.8M
YoY Change	88.37%	45.88%	52.61%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.363M	$1.229M	$2.099M
YoY Change	10.9%	-41.45%	35.07%
Accrued Expenses	$5.515M	$6.018M	$4.388M
YoY Change	-8.36%	37.15%	-4.92%
Deferred Revenue	$349.0K	$1.127M	$346.0K
YoY Change	-69.03%	225.72%	162.12%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$13.00K	$24.00K	$21.00K
YoY Change	-45.83%	14.29%	-52.27%
Total Short-Term Liabilities	$81.27M	$78.40M	$51.92M
YoY Change	3.66%	51.0%	23.22%
LONG-TERM LIABILITIES
Long-Term Debt	$174.0M	$13.00K	$46.69M
YoY Change	1338446.15%	-99.97%	-18.04%
Other Long-Term Liabilities	$679.0K	$0.00
YoY Change
Total Long-Term Liabilities	$174.7M	$81.05M	$101.8M
YoY Change	115.54%	-20.38%	-9.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$81.27M	$78.40M	$51.92M
Total Long-Term Liabilities	$174.7M	$81.05M	$101.8M
Total Liabilities	$265.3M	$81.05M	$153.7M
YoY Change	227.4%	-47.27%	-0.93%
SHAREHOLDERS EQUITY
Retained Earnings	-$394.1M	-$338.6M	-$321.5M
YoY Change	16.37%	5.33%	19.76%
Common Stock	$551.4M	$480.6M	$66.10M
YoY Change	14.74%	627.05%	12.62%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$157.2M	$143.3M	$51.98M
YoY Change
Total Liabilities & Shareholders Equity	$422.5M	$224.3M	$153.8M
YoY Change	88.37%	45.88%	52.61%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2018 Q4
OPERATING ACTIVITIES
Net Income	-$6.780M	$3.430M	-$11.57M
YoY Change	-297.67%	-129.65%	184.98%
Depreciation, Depletion And Amortization	$2.020M	$1.360M	$810.0K
YoY Change	48.53%	67.9%	10.96%
Cash From Operating Activities	$5.610M	$4.100M	-$4.700M
YoY Change	36.83%	-187.23%	-15.01%
INVESTING ACTIVITIES
Capital Expenditures	-$3.860M	-$4.610M	-$3.150M
YoY Change	-16.27%	46.35%	472.73%
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities	-$3.860M	-$4.610M	-$3.150M
YoY Change	-16.27%	46.35%	472.73%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	3.420M	9.130M	50.00K
YoY Change	-62.54%	18160.0%	-105.75%
NET CHANGE
Cash From Operating Activities	5.610M	4.100M	-4.700M
Cash From Investing Activities	-3.860M	-4.610M	-3.150M
Cash From Financing Activities	3.420M	9.130M	50.00K
Net Change In Cash	5.170M	8.620M	-7.800M
YoY Change	-40.02%	-210.51%	12.23%
FREE CASH FLOW
Cash From Operating Activities	$5.610M	$4.100M	-$4.700M
Capital Expenditures	-$3.860M	-$4.610M	-$3.150M
Free Cash Flow	$9.470M	$8.710M	-$1.550M
YoY Change	8.73%	-661.94%	-68.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001666071
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-38386
CY2020	dei	Entity Registrant Name EntityRegistrantName	CARDLYTICS, INC.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-3039436
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	675 Ponce de Leon Ave. NE, Ste 6000
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Atlanta
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	GA
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	30308
CY2020	dei	City Area Code CityAreaCode	(888)
CY2020	dei	Local Phone Number LocalPhoneNumber	792-5802
CY2020	dei	Security12b Title Security12bTitle	Common Stock
CY2020	dei	Trading Symbol TradingSymbol	CDLX
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	1800000000	USD
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CY2018	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	1735000	USD
CY2018	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	1735000	USD
CY2018	cdlx	Adjustments To Additional Paid In Capital Accretion To Redemption Value AdjustmentsToAdditionalPaidInCapitalAccretionToRedemptionValue	157000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	926000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-53042000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	51975000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12052000	USD
CY2019	cdlx	Stock Issued During Period Shares Warrants Exercised In Period StockIssuedDuringPeriodSharesWarrantsExercisedInPeriod	17659000	shares
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15888000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	0	USD
CY2019	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1904000	shares
CY2019	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	61309000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition	2208000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition	2208000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-680000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-17144000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	143267000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	10176000	USD
CY2020	cdlx	Stock Issued During Period Shares Warrants Exercised In Period StockIssuedDuringPeriodSharesWarrantsExercisedInPeriod	0	shares
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	32872000	USD
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	779000	shares
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2837000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	51416000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	51416000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature	-26450000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Convertible Debt With Conversion Feature AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature	-26450000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1504000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-55422000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	157192000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-53042000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-17144000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-55422000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	130000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1201000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1196000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3282000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4535000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7826000	USD
CY2018	cdlx	Capitalized Contract Cost Amortization Interest Expense CapitalizedContractCostAmortizationInterestExpense	282000	USD
CY2019	cdlx	Capitalized Contract Cost Amortization Interest Expense CapitalizedContractCostAmortizationInterestExpense	95000	USD
CY2019	cdlx	Contractwith Customer Asset Deferred Implementation Costs Amortization ContractwithCustomerAssetDeferredImplementationCostsAmortization	2869000	USD
CY2020	cdlx	Contractwith Customer Asset Deferred Implementation Costs Amortization ContractwithCustomerAssetDeferredImplementationCostsAmortization	4598000	USD
CY2020	cdlx	Capitalized Contract Cost Amortization Interest Expense CapitalizedContractCostAmortizationInterestExpense	312000	USD
CY2018	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	0	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	3766000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2326000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	0	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2486000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	26790000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	15851000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	32396000	USD
CY2018	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	6760000	USD
CY2019	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2020	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4641000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	570000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1003000	USD
CY2018	cdlx	Contractwith Customer Asset Deferred Implementation Costs Amortization ContractwithCustomerAssetDeferredImplementationCostsAmortization	1618000	USD
CY2018	cdlx	Settlement Of Paidin Kind Interest SettlementOfPaidinKindInterest	8353000	USD
CY2019	cdlx	Settlement Of Paidin Kind Interest SettlementOfPaidinKindInterest	0	USD
CY2020	cdlx	Settlement Of Paidin Kind Interest SettlementOfPaidinKindInterest	0	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9426000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	26018000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2396000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2275000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2224000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	65000	USD
CY2018	cdlx	Increase Decrease In Deferred Financial Institution Implementation Costs IncreaseDecreaseInDeferredFinancialInstitutionImplementationCosts	-9250000	USD
CY2019	cdlx	Increase Decrease In Deferred Financial Institution Implementation Costs IncreaseDecreaseInDeferredFinancialInstitutionImplementationCosts	0	USD
CY2020	cdlx	Increase Decrease In Deferred Financial Institution Implementation Costs IncreaseDecreaseInDeferredFinancialInstitutionImplementationCosts	0	USD
CY2018	cdlx	Contractwith Customer Asset Deferred Financial Institution Implementation Costs Recoveries Through Financial Institution Share Net ContractwithCustomerAssetDeferredFinancialInstitutionImplementationCostsRecoveriesThroughFinancialInstitutionShareNet	5380000	USD
CY2019	cdlx	Contractwith Customer Asset Deferred Financial Institution Implementation Costs Recoveries Through Financial Institution Share Net ContractwithCustomerAssetDeferredFinancialInstitutionImplementationCostsRecoveriesThroughFinancialInstitutionShareNet	4625000	USD
CY2020	cdlx	Contractwith Customer Asset Deferred Financial Institution Implementation Costs Recoveries Through Financial Institution Share Net ContractwithCustomerAssetDeferredFinancialInstitutionImplementationCostsRecoveriesThroughFinancialInstitutionShareNet	0	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	911000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-601000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	16000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	3255000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	6152000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-1238000	USD
CY2018	cdlx	Increase Decrease In Financial Institution Share Liability IncreaseDecreaseInFinancialInstitutionShareLiability	3742000	USD
CY2019	cdlx	Increase Decrease In Financial Institution Share Liability IncreaseDecreaseInFinancialInstitutionShareLiability	14301000	USD
CY2020	cdlx	Increase Decrease In Financial Institution Share Liability IncreaseDecreaseInFinancialInstitutionShareLiability	-4499000	USD
CY2018	cdlx	Increase Decrease In Consumer Incentive Liability IncreaseDecreaseInConsumerIncentiveLiability	4234000	USD
CY2019	cdlx	Increase Decrease In Consumer Incentive Liability IncreaseDecreaseInConsumerIncentiveLiability	8385000	USD
CY2020	cdlx	Increase Decrease In Consumer Incentive Liability IncreaseDecreaseInConsumerIncentiveLiability	4429000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-18995000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	11457000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-7598000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5920000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8277000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5408000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	23000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	31000	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	76000	USD
CY2018	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	1399000	USD
CY2019	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	2712000	USD
CY2020	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	4633000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7342000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11020000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10117000	USD
CY2018	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	47435000	USD
CY2019	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	52581000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	46698000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	23000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	223100000	USD
CY2018	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	0	USD
CY2019	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	0	USD
CY2020	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	26450000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	72334000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	91216000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	10185000	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1949000	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	196000	USD
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	48000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	143000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	382000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	65191000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	44179000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	206430000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-246000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	101000	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	47000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	38608000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	44717000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	188762000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21262000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59870000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	104587000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59870000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	104587000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	293349000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	39623000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	104458000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	293239000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	20247000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	129000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	110000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59870000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	104587000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	293349000	USD
CY2018	us-gaap	Interest Paid InterestPaid	9733000	USD
CY2019	us-gaap	Interest Paid InterestPaid	1266000	USD
CY2020	us-gaap	Interest Paid InterestPaid	63000	USD
CY2018Q4	cdlx	Property And Equipment Incurred But Not Yet Paid PropertyAndEquipmentIncurredButNotYetPaid	640000	USD
CY2019Q4	cdlx	Property And Equipment Incurred But Not Yet Paid PropertyAndEquipmentIncurredButNotYetPaid	456000	USD
CY2020Q4	cdlx	Property And Equipment Incurred But Not Yet Paid PropertyAndEquipmentIncurredButNotYetPaid	242000	USD
CY2018Q4	cdlx	Capitalized Software Development Costs Incurredbut Notyet Paid CapitalizedSoftwareDevelopmentCostsIncurredbutNotyetPaid	0	USD
CY2019Q4	cdlx	Capitalized Software Development Costs Incurredbut Notyet Paid CapitalizedSoftwareDevelopmentCostsIncurredbutNotyetPaid	10000	USD
CY2020Q4	cdlx	Capitalized Software Development Costs Incurredbut Notyet Paid CapitalizedSoftwareDevelopmentCostsIncurredbutNotyetPaid	68000	USD
CY2018Q1	cdlx	Proceeds From Issuance Of Common Stock Trigger Amount For Conversion Of Redeemable Convertible Preferred Stock ProceedsFromIssuanceOfCommonStockTriggerAmountForConversionOfRedeemableConvertiblePreferredStock	70000000.0	USD
CY2018Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2018Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2018Q1	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	25000000	shares
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	130000	USD
CY2018Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	421355	shares
CY2018Q1	cdlx	Proceedsfrom Issuance Initial Public Offering Gross ProceedsfromIssuanceInitialPublicOfferingGross	5500000	USD
CY2018Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	5821355	shares
CY2018Q1	cdlx	Proceedsfrom Issuance Initial Public Offering Gross ProceedsfromIssuanceInitialPublicOfferingGross	75700000	USD
CY2018Q1	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	66100000	USD
CY2018Q1	cdlx	Saleofstockdiscountsandcommissions Saleofstockdiscountsandcommissions	5300000	USD
CY2018Q1	cdlx	Saleof Stock Issuance Costs SaleofStockIssuanceCosts	4300000	USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2019Q3	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	1904154	shares
CY2019Q3	cdlx	Proceeds From Issuance Secondary Public Offering Net ProceedsFromIssuanceSecondaryPublicOfferingNet	61300000	USD
CY2019Q3	cdlx	Saleof Stock Issuance Costs SaleofStockIssuanceCosts	200000	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	230000000.0	USD
CY2020Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0100
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1201000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual results could differ from these estimates. Significant items subject to such estimates and assumptions include revenue recognition, internal-use software development costs, income taxes, stock-based compensation, income tax valuation allowance, contingencies and changes in fair value of our preferred stock warrants and common stock warrants. We base our estimates on historical experience and also on assumptions that we believe are reasonable. Changes in facts or circumstances may cause us to change our assumptions and estimates in future periods and it is possible that actual results could differ from our current or revised future estimates.</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Restructuring</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the first quarter of 2020, we began a strategic shift within our organization to increase productivity and optimize performance. This plan has resulted in severance and medical benefits totaling $1.3 million during the year ended December 31, 2020. We recognize these costs when the extent of our actions is determined and the costs can be estimated. These charges are reflected on our consolidated statement of operations for the year ended December 31, 2020, as follows: $1.1 million in sales and marketing expense, $0.1 million in general and administrative expense and $0.1 million in research and development expense. Severance and medical benefits of $0.9 million have been paid to former employees through December 31, 2020.</span></div>
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	105000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	169000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	255000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1196000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	66000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1115000	USD
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	864000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	169000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	255000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	587000	USD
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	400000	USD
CY2019Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	600000	USD
CY2020Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	500000	USD
CY2020	cdlx	Number Of Patents Approved NumberOfPatentsApproved	4	patent
CY2014	cdlx	Number Of Patents Approved NumberOfPatentsApproved	3	patent
CY2019	cdlx	Number Of Patents Approved NumberOfPatentsApproved	1	patent
CY2018Q4	cdlx	Finite Lived Intangible Assets Not Yet Capitalized FiniteLivedIntangibleAssetsNotYetCapitalized	300000	USD
CY2019Q4	cdlx	Finite Lived Intangible Assets Not Yet Capitalized FiniteLivedIntangibleAssetsNotYetCapitalized	300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	448000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	518000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	59000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	71000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	389000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	447000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	5537000	USD
CY2020Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	9230000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	1722000	USD
CY2020Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	2931000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	3815000	USD
CY2020Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	6299000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-900000	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	230000000.0	USD
CY2020Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0100
CY2020Q3	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	222700000	USD
CY2020Q4	cdlx	Debt Issuance Costs Amortization Next Twelve Months DebtIssuanceCostsAmortizationNextTwelveMonths	909000	USD
CY2020Q4	cdlx	Debt Issuance Costs Amortization Year Two DebtIssuanceCostsAmortizationYearTwo	1006000	USD
CY2020Q4	cdlx	Debt Issuance Costs Amortization Year Three DebtIssuanceCostsAmortizationYearThree	1151000	USD
CY2020Q4	cdlx	Debt Issuance Costs Amortization Year Four DebtIssuanceCostsAmortizationYearFour	1312000	USD
CY2020Q4	cdlx	Debt Issuance Costs Amortization Year Five DebtIssuanceCostsAmortizationYearFive	1036000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	5414000	USD
CY2017Q4	us-gaap	Deferred Costs DeferredCosts	3144000	USD
CY2018Q4	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2019Q4	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2018	cdlx	Deferred Offering Costs Incurred During Period DeferredOfferingCostsIncurredDuringPeriod	1135000	USD
CY2019	cdlx	Deferred Offering Costs Incurred During Period DeferredOfferingCostsIncurredDuringPeriod	196000	USD
CY2020	cdlx	Deferred Offering Costs Incurred During Period DeferredOfferingCostsIncurredDuringPeriod	0	USD
CY2018	cdlx	Saleof Stock Issuance Costs SaleofStockIssuanceCosts	4279000	USD
CY2019	cdlx	Saleof Stock Issuance Costs SaleofStockIssuanceCosts	196000	USD
CY2020	cdlx	Saleof Stock Issuance Costs SaleofStockIssuanceCosts	0	USD
CY2018Q4	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2019Q4	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2020Q4	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2018	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	900000	USD
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1400000	USD
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1000000.0	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	150684000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	210430000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	186892000	USD
CY2018	cdlx	Consumer Incentives Expense ConsumerIncentivesExpense	68300000	USD
CY2019	cdlx	Consumer Incentives Expense ConsumerIncentivesExpense	105600000	USD
CY2020	cdlx	Consumer Incentives Expense ConsumerIncentivesExpense	76500000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10300000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	13500000	USD
CY2020Q1	us-gaap	Deferred Rent Credit DeferredRentCredit	3200000	USD
CY2020	cdlx	Operating Lease Modification OperatingLeaseModification	2200000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	4078000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	847000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	232000	USD
CY2020Q4	cdlx	Lease Weighted Average Discount Rate Percent LeaseWeightedAverageDiscountRatePercent	0.034
CY2020	cdlx	Lease Weighted Average Remaining Lease Term LeaseWeightedAverageRemainingLeaseTerm	P3Y3M
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5097000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4681000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2692000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1807000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	611000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	14888000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	789000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	14099000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3040000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2759000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	2808000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1847000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1807000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	611000	USD
CY2020Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	12872000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30911000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	35112000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	16621000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21247000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	14290000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	13865000	USD
CY2019Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	1096000	USD
CY2020Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	557000	USD
CY2019Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	1067000	USD
CY2020Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	548000	USD
CY2019Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	29000	USD
CY2020Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	9000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	3000000.0	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	4000000.0	USD
CY2020	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5600000	USD
CY2019Q4	us-gaap	Senior Notes SeniorNotes	0	USD
CY2020Q4	us-gaap	Senior Notes SeniorNotes	174011000	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	37000	USD
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	174024000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	24000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	13000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	13000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	174011000	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	230000000.0	USD
CY2020Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0100
CY2020Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0100
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Consecutive Trading Days1 DebtInstrumentConvertibleThresholdConsecutiveTradingDays1	30000	numberOfDays
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Percentage Of Stock Price Trigger DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger	1.30
CY2020Q3	us-gaap	Debt Instrument Convertible Conversion Ratio1 DebtInstrumentConvertibleConversionRatio1	11.7457
CY2020Q3	us-gaap	Debt Instrument Convertible Conversion Price1 DebtInstrumentConvertibleConversionPrice1	85140
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Percentage Of Stock Price Trigger DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger	1.30
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Consecutive Trading Days1 DebtInstrumentConvertibleThresholdConsecutiveTradingDays1	30000	numberOfDays
CY2020Q3	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2020Q3	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Consecutive Trading Days1 DebtInstrumentConvertibleThresholdConsecutiveTradingDays1	30000	numberOfDays
CY2020Q3	us-gaap	Debt Instrument Convertible Threshold Consecutive Trading Days1 DebtInstrumentConvertibleThresholdConsecutiveTradingDays1	30000	numberOfDays
CY2020Q3	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	222700000	USD
CY2020Q3	us-gaap	Debt Instrument Call Feature DebtInstrumentCallFeature	26.5 million
CY2020Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	230000000	USD
CY2020Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	50610000	USD
CY2020Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5379000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	174011000	USD
CY2020Q3	us-gaap	Debt Instrument Convertible Carrying Amount Of The Equity Component DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent	53096000	USD
CY2020Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1680000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	51416000	USD
CY2020Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	626000	USD
CY2020Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2486000	USD
CY2020Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	217000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	3329000	USD
CY2020Q3	us-gaap	Debt Instrument Call Feature DebtInstrumentCallFeature	26.5 million
CY2020Q4	cdlx	Line Of Credit Facility Maximum Borrowing Capacity Percentage Of Eligible Accounts Receivable LineOfCreditFacilityMaximumBorrowingCapacityPercentageOfEligibleAccountsReceivable	0.85
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	13000	USD
CY2020Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	13000	USD
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	1875000	shares
CY2018Q1	cdlx	Sharebased Compensation Arrangementby Sharebased Payment Award Numberof Shares Remaining For Available For Issuance SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesRemainingForAvailableForIssuance	61247	shares
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	1222316	shares
CY2020Q4	cdlx	Sharebased Compensation Arrangementby Sharebased Payment Award Numberof Shares Authorized Annual Percentage Increase SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofSharesAuthorizedAnnualPercentageIncrease	0.05
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	1393040	shares
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26790000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15851000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	32396000	USD
CY2020	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	100000	USD
CY2020	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	100000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2514000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.42
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	29000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	24.24
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	357000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.25
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	197000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	24.10
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	215000	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	16.60
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1774000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.55
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	39000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	20.64
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	716000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	16.84
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	31000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.95
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	66000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	22.37
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1000000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.99
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	467000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	21.78
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	29523000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	19000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	27.83
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	1000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	21.89
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	513000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.91
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	61009000	USD
CY2020Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	480000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.72
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	57126000	USD
CY2019Q2	cdlx	Sharebased Compensation Arrangementby Sharebased Payment Award Monthly Average Closing Price Common Stock Threshold SharebasedCompensationArrangementbySharebasedPaymentAwardMonthlyAverageClosingPriceCommonStockThreshold	142.77
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	6000000.0	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4800000	USD
CY2019Q2	cdlx	Sharebased Compensation Arrangementby Sharebased Payment Award Monthly Average Closing Price Common Stock Threshold SharebasedCompensationArrangementbySharebasedPaymentAwardMonthlyAverageClosingPriceCommonStockThreshold	142.77
CY2020	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	474120	shares
CY2020Q1	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	278608000	shares
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-48897000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-13464000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-42613000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-4145000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3680000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-12809000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-53042000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-17144000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-55422000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6896000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1326000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23062000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1264000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	622000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3744000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	916000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	222000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1713000	USD
CY2018	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-105000	USD
CY2019	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	598000	USD
CY2020	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-117000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	8971000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	2768000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	28402000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
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Files In Submission

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$CDLX
Cardlytics, Inc. Stock $cdlx

2020 Q4 Form 10-K Financial Statement

#000166607121000029 Filed on March 01, 2021

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$CDLX Cardlytics, Inc. Stock $cdlx

2020 Q4 Form 10-K Financial Statement

#000166607121000029 Filed on March 01, 2021

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$CDLX
Cardlytics, Inc. Stock $cdlx