$ANGI
Angi Inc. Stock $angi

$angi Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000170511020000003 Filed on February 28, 2020

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$279.0M	$303.1M	$294.8M
YoY Change	24.99%	66.81%	63.15%
Cost Of Revenue	$13.43M	$14.02M	$14.70M
YoY Change	14.93%	75.21%	94.43%
Gross Profit	$265.6M	$289.1M	$280.1M
YoY Change	25.54%	66.42%	61.78%
Gross Profit Margin	95.19%	95.38%	95.01%
Selling, General & Admin	$210.6M	$218.6M	$221.5M
YoY Change	0.81%	-15.92%	35.85%
% of Gross Profit	79.3%	75.6%	79.08%
Research & Development	$16.40M	$15.31M	$13.66M
YoY Change	6.49%	-23.49%	96.77%
% of Gross Profit	6.18%	5.3%	4.88%
Depreciation & Amortization	$20.60M	$21.70M	$21.70M
YoY Change	-2.83%	244.44%	267.8%
% of Gross Profit	7.76%	7.51%	7.75%
Operating Expenses	$247.7M	$233.9M	$235.2M
YoY Change	0.94%	-16.46%	38.33%
Operating Profit	$17.89M	$33.52M	$23.26M
YoY Change	-152.73%	-129.79%	-920.24%
Interest Expense	-$2.800M	$3.132M	$3.011M
YoY Change	27.27%
% of Operating Profit	-15.66%	9.35%	12.94%
Other Income/Expense, Net	$14.90M	$1.566M	$1.053M
YoY Change	-15000.0%	14.81%	108.51%
Pretax Income	$29.90M	$31.93M	$21.27M
YoY Change	-182.6%	-128.25%	-581.99%
Income Tax	-$6.900M	$5.140M	-$1.753M
% Of Pretax Income	-23.08%	16.1%	-8.24%
Net Earnings	$36.81M	$26.79M	$23.02M
YoY Change	-163.22%	-137.12%	-92192.0%
Net Earnings / Revenue	13.19%	8.84%	7.81%
Basic Earnings Per Share	$0.07	$0.06	$0.05
Diluted Earnings Per Share	$0.07	$0.05	$0.05
COMMON SHARES
Basic Shares Outstanding		481.6M shares	480.6M shares
Diluted Shares Outstanding		520.8M shares	508.8M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$361.9M	$314.4M	$255.6M
YoY Change	63.38%	428.33%	423.77%
Cash & Equivalents	$337.0M	$279.5M	$255.6M
Short-Term Investments	$24.95M	$34.87M
Other Short-Term Assets	$84.93M	$61.86M	$54.98M
YoY Change	564.99%	164.35%	170.83%
Inventory
Prepaid Expenses	$16.22M
Receivables	$27.26M	$44.39M	$43.41M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$474.1M	$420.6M	$354.0M
YoY Change	80.7%	270.25%	320.91%
LONG-TERM ASSETS
Property, Plant & Equipment	$70.86M	$58.78M	$53.40M
YoY Change	32.96%	23.48%	-31.1%
Goodwill	$894.7M	$769.1M	$769.0M
YoY Change	16.16%
Intangibles	$304.3M	$280.6M	$296.2M
YoY Change	-7.39%
Long-Term Investments
YoY Change
Other Assets	$23.20M	$7.427M	$8.022M
YoY Change	1019.69%	-89.81%
Total Long-Term Assets	$1.334B	$1.158B	$1.174B
YoY Change	10.71%	-6.44%	1377.13%
TOTAL ASSETS
Total Short-Term Assets	$474.1M	$420.6M	$354.0M
Total Long-Term Assets	$1.334B	$1.158B	$1.174B
Total Assets	$1.808B	$1.579B	$1.528B
YoY Change	23.22%	16.81%	834.17%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$20.10M	$18.70M	$22.40M
YoY Change	6.35%	-62.6%	37.42%
Accrued Expenses	$106.0M	$81.47M	$66.45M
YoY Change	40.99%	-9.48%	288.58%
Deferred Revenue	$61.40M	$66.67M	$69.40M
YoY Change	-1.56%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$13.75M	$13.75M	$13.75M
YoY Change	0.0%		358.33%
Total Short-Term Liabilities	$201.2M	$180.6M	$172.0M
YoY Change	17.65%	-9.24%	76.77%
LONG-TERM LIABILITIES
Long-Term Debt	$245.0M	$248.5M	$251.7M
YoY Change	-5.16%	212.52%	356.88%
Other Long-Term Liabilities	$16.85M	$11.61M	$9.247M
YoY Change	185.91%	136.94%	285.29%
Total Long-Term Liabilities	$261.8M	$260.1M	$261.0M
YoY Change	-0.9%	208.13%	353.89%
TOTAL LIABILITIES
Total Short-Term Liabilities	$201.2M	$180.6M	$172.0M
Total Long-Term Liabilities	$261.8M	$260.1M	$261.0M
Total Liabilities	$463.1M	$440.7M	$433.0M
YoY Change	6.39%	38.84%	179.71%
SHAREHOLDERS EQUITY
Retained Earnings	-$18.80M	-$55.48M	-$82.10M
YoY Change	-84.56%
Common Stock	$1.333B	$1.156B	$1.139B
YoY Change	19.84%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.313B	$1.103B	$1.058B
YoY Change
Total Liabilities & Shareholders Equity	$1.808B	$1.579B	$1.528B
YoY Change	23.22%	16.81%	834.17%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	$36.81M	$26.79M	$23.02M
YoY Change	-163.22%	-137.12%	-92192.0%
Depreciation, Depletion And Amortization	$20.60M	$21.70M	$21.70M
YoY Change	-2.83%	244.44%	267.8%
Cash From Operating Activities	$70.00M	$80.10M	$62.50M
YoY Change	-596.45%	221.69%	172.93%
INVESTING ACTIVITIES
Capital Expenditures	-$14.10M	-$11.50M	-$12.50M
YoY Change	34.29%	71.64%	111.86%
Acquisitions
YoY Change
Other Investing Activities	$13.80M	-$34.80M	$0.00
YoY Change	13700.0%	74.0%	-100.0%
Cash From Investing Activities	-$300.0K	-$46.30M	-$12.50M
YoY Change	-97.14%	74.06%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-11.20M	-9.500M	-22.90M
YoY Change	-106.0%	-161.69%	12.81%
NET CHANGE
Cash From Operating Activities	70.00M	80.10M	62.50M
Cash From Investing Activities	-300.0K	-46.30M	-12.50M
Cash From Financing Activities	-11.20M	-9.500M	-22.90M
Net Change In Cash	58.50M	24.30M	27.10M
YoY Change	-63.89%	77.37%	942.31%
FREE CASH FLOW
Cash From Operating Activities	$70.00M	$80.10M	$62.50M
Capital Expenditures	-$14.10M	-$11.50M	-$12.50M
Free Cash Flow	$84.10M	$91.60M	$75.00M
YoY Change	-2436.11%	189.87%	160.42%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	13044000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	29365000	shares
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001705110
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	16603000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20293000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-38220
CY2019	dei	Entity Registrant Name EntityRegistrantName	ANGI HOMESERVICES INC.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-1204801
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	3601 Walnut Street
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Denver
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CO
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	80205
CY2019	dei	City Area Code CityAreaCode	303
CY2019	dei	Local Phone Number LocalPhoneNumber	963-7200
CY2019	dei	Security12b Title Security12bTitle	Class A Common Stock, par value $0.001
CY2019	dei	Trading Symbol TradingSymbol	ANGI
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	1109210119	USD
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CY2018Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	24947000	USD
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CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	67759000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	84933000	USD
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CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	101243000	USD
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CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	231946000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	396000	USD
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CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4968000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	35710000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	72648000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-99559000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	485000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	189000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1409000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-86000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-766000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	1015000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	399000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-577000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-394000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35311000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73225000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-99165000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	162613000	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-103136000	USD
CY2017	iaci	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest Total OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterestTotal	4210000	USD
CY2017	iaci	Stockholders Equity Invested Capital Value Period Increase Decrease StockholdersEquityInvestedCapitalValuePeriodIncreaseDecrease	46339000	USD
CY2017	iaci	Stock Issued During Period Value Capital Contribution Post Ipo StockIssuedDuringPeriodValueCapitalContributionPostIPO	779471000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	125451000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-8490000	USD
CY2017	iaci	Stock Issued During Period Value Related Party Employee Matters Agreement StockIssuedDuringPeriodValueRelatedPartyEmployeeMattersAgreement	0	USD
CY2017	iaci	Adjustmentsto Additional Paidin Capital Reallocationof Net Book Value AdjustmentstoAdditionalPaidinCapitalReallocationofNetBookValue	0	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	848000	USD
CY2017	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-3332000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-816000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1003094000	USD
CY2018Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	25649000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	77653000	USD
CY2018	iaci	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest Total OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterestTotal	-4277000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	95940000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-25091000	USD
CY2018	iaci	Stock Issued During Period Value Related Party Employee Matters Agreement StockIssuedDuringPeriodValueRelatedPartyEmployeeMattersAgreement	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	35314000	USD
CY2018	iaci	Stock Issued During Period Value Post Closing Adjustment Provision StockIssuedDuringPeriodValuePostClosingAdjustmentProvision	0	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	165797000	USD
CY2018	iaci	Adjustmentsto Additional Paidin Capital Distributionto Parent AdjustmentstoAdditionalPaidinCapitalDistributiontoParent	12100000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	1236000	USD
CY2018	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-1244000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	2198000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1321987000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	35172000	USD
CY2019	iaci	Other Comprehensive Income Loss Netof Tax Including Portion Attributableto Nonredeemable Noncontrolling Interest Total OtherComprehensiveIncomeLossNetofTaxIncludingPortionAttributabletoNonredeemableNoncontrollingInterestTotal	357000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	65815000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-32957000	USD
CY2019	iaci	Stock Issued During Period Value Related Party Employee Matters Agreement StockIssuedDuringPeriodValueRelatedPartyEmployeeMattersAgreement	-1765000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	57949000	USD
CY2019	iaci	Adjustmentsto Additional Paidin Capital Tax Sharing Agreement AdjustmentstoAdditionalPaidinCapitalTaxSharingAgreement	1151000	USD
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-8242000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	17000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1323552000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	77507000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-104527000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	68255000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	97078000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	149230000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55482000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	62212000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23261000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	64278000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	47242000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	27514000	USD
CY2019	us-gaap	Depreciation Depreciation	39915000	USD
CY2018	us-gaap	Depreciation Depreciation	24310000	USD
CY2017	us-gaap	Depreciation Depreciation	14543000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3250000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8368000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-48350000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-218000	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	13237000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-7987000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	519000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	911000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	78954000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	47686000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	33179000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-13382000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12959000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4523000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	13627000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-576000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	778000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1650000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	725000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-2054000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3743000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-2029000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	10995000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	214161000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	223700000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	41823000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	20341000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-3669000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	66340000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	68804000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	46976000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26837000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	25000000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	35000000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	59671000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	23615000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	10412000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	103000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	25000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40633000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57591000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-93177000	USD
CY2019	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	0	USD
CY2018	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	1904000	USD
CY2017	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	181580000	USD
CY2019	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	56905000	USD
CY2017	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	275000000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	13750000	USD
CY2018	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	13750000	USD
CY2017	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2168000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3013000	USD
CY2019	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2018	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2017	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	131360000	USD
CY2019	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	1008000	USD
CY2018	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2017	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	573000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4693000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1653000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	35284000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	29844000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10113000	USD
CY2019	iaci	Transfersfromtoforperiods Priorto Combination TransfersfromtoforperiodsPriortoCombination	0	USD
CY2018	iaci	Transfersfromtoforperiods Priorto Combination TransfersfromtoforperiodsPriortoCombination	0	USD
CY2017	iaci	Transfersfromtoforperiods Priorto Combination TransfersfromtoforperiodsPriortoCombination	24178000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	11355000	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2017	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	0	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	71000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	6061000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	12789000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3732000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	13000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	37000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-121532000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-49021000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	224733000	USD
CY2019	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	51996000	USD
CY2018	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	117088000	USD
CY2017	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	173379000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	661000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1217000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	52657000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	117300000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	174596000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338821000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221521000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46925000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	391478000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338821000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221521000	USD
CY2019	us-gaap	Nature Of Operations NatureOfOperations	ORGANIZATION<div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">ANGI Homeservices Inc. connects quality home service professionals across </span><span style="font-family:inherit;font-size:10pt;"><span>500</span></span><span style="font-family:inherit;font-size:10pt;"> different categories, from repairing and remodeling to cleaning and landscaping, with consumers. Over </span><span style="font-family:inherit;font-size:10pt;"><span>250,000</span></span><span style="font-family:inherit;font-size:10pt;"> domestic service professionals find work through ANGI Homeservices, and consumers turn to at least one of our brands to find a professional for more than </span><span style="font-family:inherit;font-size:10pt;"><span>25 million</span></span><span style="font-family:inherit;font-size:10pt;"> projects each year. We've established category-transforming products with brands such as HomeAdvisor, Angie’s List, Handy and Fixd Repair. </span></div><div style="line-height:120%;padding-bottom:16px;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On </span><span style="font-family:inherit;font-size:10pt;">September 29, 2017</span><span style="font-family:inherit;font-size:10pt;">, IAC/InterActiveCorp's ("IAC") HomeAdvisor business and Angie's List Inc. ("Angie's List") combined under a new publicly traded company called ANGI Homeservices Inc. (the "Combination"). At </span><span style="font-family:inherit;font-size:10pt;">December 31, 2019</span><span style="font-family:inherit;font-size:10pt;">, IAC owned </span><span style="font-family:inherit;font-size:10pt;"><span>84.1%</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>98.1%</span></span><span style="font-family:inherit;font-size:10pt;"> of the economic interest and voting interest, respectively, of ANGI Homeservices. See "</span><a href="#s1F730B6BD8155E60BD40BC7AF2AF4F91" style="font-family:inherit;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Note 4—Business Combinations</span></a><span style="font-family:inherit;font-size:10pt;">" for additional information related to the Combination.</span></div><div style="line-height:120%;padding-bottom:13px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The HomeAdvisor digital marketplace service connects consumers with service professionals nationwide for home repair, maintenance and improvement projects. HomeAdvisor provides consumers with tools and resources to help them find local, pre-screened and customer-rated service professionals, as well as instantly book appointments with those professionals online or connect with them by telephone. Effective </span><span style="font-family:inherit;font-size:10pt;">September 29, 2017</span><span style="font-family:inherit;font-size:10pt;">, the Company also owns and operates Angie’s List, which connects consumers with service professionals for local services through a nationwide online directory of service professionals in over </span><span style="font-family:inherit;font-size:10pt;"><span>700</span></span><span style="font-family:inherit;font-size:10pt;"> service categories, as well as provides consumers with valuable tools, services and content, including verified reviews of local service professionals, to help them research, shop and hire for local services. On </span><span style="font-family:inherit;font-size:10pt;">October 19, 2018</span><span style="font-family:inherit;font-size:10pt;">, the Company acquired Handy Technologies, Inc. ("Handy"), a leading platform for connecting individuals looking for household services (primarily cleaning and handyman services) with top-quality, pre-screened independent service professionals. Together, we refer to the HomeAdvisor and Handy businesses in the United States as the ("Marketplace"). On January 25, 2019, the Company completed the acquisition of Fixd Repair, a home warranty and service company. We also own and operate mHelpDesk, a provider of cloud-based field service software for small to mid-size businesses. Prior to its sale on December 31, 2018, the Company also operated Felix, a pay-per-call advertising service business that was included in our North America segment. In addition to its market-leading U.S. operations, ANGI Homeservices owns leading home services online marketplaces in France (Travaux), Germany (MyHammer), Netherlands (Werkspot), United Kingdom (MyBuilder), Canada (HomeStars) and Italy (Instapro), as well as operations in Austria (MyHammer).</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The Company has </span><span style="font-family:inherit;font-size:10pt;"><span>two</span></span><span style="font-family:inherit;font-size:10pt;"> operating segments: (i) North America (United States and Canada), which includes HomeAdvisor, Angie's List, Handy, mHelpDesk, HomeStars, Fixd Repair and Felix, for periods prior to its sale on December 31, 2018, and (ii) Europe, which includes Travaux, MyHammer, MyBuilder, Werkspot and Instapro.</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">As used herein, "ANGI Homeservices," the "Company," "ANGI," "we," "our" or "us" and similar terms refer to ANGI Homeservices Inc and its subsidiaries (unless the context requires otherwise).</span></div>
CY2019	iaci	Numberof Service Categories NumberofServiceCategories	500	service_category
CY2019Q4	iaci	Numberof Service Professionals NumberofServiceProfessionals	250000	service_professional
CY2019Q4	iaci	Numberof Projects NumberofProjects	25000000	project
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	operating_segment
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:0px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Estimates</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Management of the Company is required to make certain estimates, judgments and assumptions during the preparation of its consolidated and combined financial statements in accordance with GAAP. These estimates, judgments and assumptions impact the reported amounts of assets, liabilities, revenue and expenses and the related disclosure of contingent assets and liabilities. Actual results could differ from these estimates.</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:29px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On an ongoing basis, the Company evaluates its estimates and judgments, including those related to: the fair values of cash equivalents and marketable debt securities; the carrying value of accounts receivable, including the determination of the allowance for doubtful accounts; the determination of revenue reserves; the carrying value of right-of-use assets ("ROU assets"); the useful lives and recoverability of definite-lived intangible assets and capitalized software, leasehold improvements and equipment; the recoverability of goodwill and indefinite-lived intangible assets; unrecognized tax benefits; the valuation allowance for deferred income tax assets; and the fair value of and forfeiture rates for stock-based awards, among others. The Company bases its estimates and judgments on historical experience, its forecasts and budgets and other factors that the Company considers relevant.</span></div>
CY2019	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	56800000	USD
CY2018	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	50000000.0	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	35100000	USD
CY2019	iaci	Cash Equivalents Maturity Period At Purchase Less Than CashEquivalentsMaturityPeriodAtPurchaseLessThan	P91D
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	35500000	USD
CY2018Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	29700000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	4000000.0	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	3400000	USD
CY2018Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	4200000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	58400000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	61900000	USD
CY2018Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	64100000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	61000000.0	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	61200000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	58200000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	61400000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	200000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	500000	USD
CY2017Q4	iaci	Market Capitalization MarketCapitalization	3600000000	USD
CY2018Q4	iaci	Market Capitalization Exceeds Carrying Value Amount MarketCapitalizationExceedsCarryingValueAmount	2200000000	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	484300000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	334700000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	282300000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:0px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Certain Risks and Concentrations</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The Company’s business is subject to certain risks and concentrations including dependence on third-party technology providers, exposure to risks associated with online commerce security and credit card fraud.</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Financial instruments, which potentially subject the Company to concentration of credit risk, consist primarily of cash and cash equivalents and marketable debt securities. Cash and cash equivalents are maintained with financial institutions and are in excess of Federal Deposit Insurance Corporation insurance limits.</span></div>
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:0px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassifications</span></div><div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Certain prior year amounts have been reclassified to conform to the current year presentation.</span></div>
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	39821000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	82652000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-132000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-6175000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-12628000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-21633000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	33646000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	70024000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-153633000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8467000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-351000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1719000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-43000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-443000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	819000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-20000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	21000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	806000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	905000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-334000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1582000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	885000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-756000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3416000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5549000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-38587000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	517000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1100000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1296000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3250000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8368000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-48350000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1668000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7483000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-49106000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	158727000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	124877000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	33613000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	35991000	USD
CY2019Q4	iaci	Deferred Tax Assets Noncurrent Lease Liabilities DeferredTaxAssetsNoncurrentLeaseLiabilities	32642000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	26226000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	14786000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	251208000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	175654000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	71472000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	58903000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	179736000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	116751000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	63900000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	75722000	USD
CY2019Q4	iaci	Deferred Tax Liabilities Rightof Use Assets DeferredTaxLiabilitiesRightofUseAssets	24836000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12377000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3432000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	110596000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	79722000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	69140000	USD
CY2019Q4	iaci	Deferred Tax Liabilities Capitalized Coststo Obtaina Contract DeferredTaxLiabilitiesCapitalizedCoststoObtainaContract	9400000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	37029000	USD
CY2019Q4	iaci	Deferred Tax Asset Payableto Parent DeferredTaxAssetPayabletoParent	75700000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	83000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	568000	USD
CY2019	iaci	Operating Loss Carryforwards Not Subject To Expiration OperatingLossCarryforwardsNotSubjectToExpiration	298000000.0	USD
CY2019	iaci	Income Tax Expense Benefit Related To Operating Loss Carryforwards IncomeTaxExpenseBenefitRelatedToOperatingLossCarryforwards	-28200000	USD
CY2019	iaci	Income Tax Expense Benefit Relatedto Operating Loss Carryforwards Recordedas Increase Decreasein Goodwill IncomeTaxExpenseBenefitRelatedtoOperatingLossCarryforwardsRecordedasIncreaseDecreaseinGoodwill	-26900000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	71500000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7066000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14705000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-53771000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2693000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4702000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-3678000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-12768000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-25184000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-32702000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3308000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1169000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	784000	USD
CY2019	iaci	Effective Income Tax Rate Reconciliation Nondeductible Expense Unbenefited Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseUnbenefitedLosses	1523000	USD
CY2018	iaci	Effective Income Tax Rate Reconciliation Nondeductible Expense Unbenefited Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseUnbenefitedLosses	2227000	USD
CY2017	iaci	Effective Income Tax Rate Reconciliation Nondeductible Expense Unbenefited Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseUnbenefitedLosses	5915000	USD
CY2019	iaci	Effective Income Tax Rate Reconciliation Changein Tax Rate EffectiveIncomeTaxRateReconciliationChangeinTaxRate	-502000	USD
CY2018	iaci	Effective Income Tax Rate Reconciliation Changein Tax Rate EffectiveIncomeTaxRateReconciliationChangeinTaxRate	1431000	USD
CY2017	iaci	Effective Income Tax Rate Reconciliation Changein Tax Rate EffectiveIncomeTaxRateReconciliationChangeinTaxRate	-33002000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2624000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1333000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2912000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1668000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7483000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-49106000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-46459000	USD
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.16
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.11
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2356000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1548000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	602000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1325000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	411000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	235000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	344000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	397000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	711000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4025000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2356000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1548000	USD
CY2019Q4	iaci	Unrecognized Tax Benefits Including Tax Interest Accrued UnrecognizedTaxBenefitsIncludingTaxInterestAccrued	4100000	USD
CY2018Q4	iaci	Unrecognized Tax Benefits Including Tax Interest Accrued UnrecognizedTaxBenefitsIncludingTaxInterestAccrued	2400000	USD
CY2019Q4	iaci	Unrecognized Tax Benefits Unrelated To Federal Income Taxes Statute Of Limitations Expiring To Be Recognized In Subsequent Periods That Would Income Impact Tax Expense Continuing Operations UnrecognizedTaxBenefitsUnrelatedToFederalIncomeTaxesStatuteOfLimitationsExpiringToBeRecognizedInSubsequentPeriodsThatWouldIncomeImpactTaxExpenseContinuingOperations	4000000.0	USD
CY2018Q4	iaci	Change In Unrecognized Tax Benefits Unrelated To The Federal Income Taxes Statute Of Limitations Expiring Reasonably Possible Within Twelve Months Of The Current Reporting Period ChangeInUnrecognizedTaxBenefitsUnrelatedToTheFederalIncomeTaxesStatuteOfLimitationsExpiringReasonablyPossibleWithinTwelveMonthsOfTheCurrentReportingPeriod	2400000	USD
CY2019Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	1400000	USD
CY2019Q4	iaci	Decreasein Unrecognized Tax Benefitsis Reasonably Possible Amountwhichwould Reduce Income Tax Provision DecreaseinUnrecognizedTaxBenefitsisReasonablyPossibleAmountwhichwouldReduceIncomeTaxProvision	1200000	USD
CY2017	iaci	Effective Income Tax Rate Reconciliation Changein Tax Rate EffectiveIncomeTaxRateReconciliationChangeinTaxRate	-33000000.0	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1155960000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	986301000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	75577000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	8148000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	190000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	0	USD
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.15
CY2017	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	-0.11
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	231946000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	244971000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	883960000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	894709000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	171599000	USD
CY2018Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	171486000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	80126000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	132809000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1135685000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1199004000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	894709000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	18326000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	29266000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	191000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	883960000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	770226000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	142768000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	14373000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-3912000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	894709000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	221334000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	141208000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	80126000	USD
CY2019	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P3Y9M18D
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	218398000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	85589000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	132809000	USD
CY2018	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P3Y9M18D
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	14951000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	13964000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1409000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	34829000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	34829000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	77318000	USD
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	77318000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	504875000	shares
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	42298000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-103118000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	28800000	USD
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	517919000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	484232000	shares
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	575000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	80126000	USD
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	513597000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	430612000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	430612000	shares
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-103118000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	504875000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	504875000	shares
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	24947000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	24947000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	25000000.0	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	35000000.0	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	314850000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	330151000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1800000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	2500000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	247500000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	261250000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	13750000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	13750000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1804000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	484232000	shares
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	2529000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	484232000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	430612000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	430612000	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.24
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.24
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5500000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3100000	shares
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	13750000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	13750000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	27500000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	192500000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	247500000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	13750000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1804000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	231946000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	7700000	shares
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	482000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	482000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-4041000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	52000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4093000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	3980000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	27000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3953000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	35314000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	35314000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	77507000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	77507000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-104527000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-104527000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	485000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	485000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	189000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	189000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1409000	USD
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	54100000	shares
CY2019	iaci	Share Based Compensation Arrangement By Share Based Payment Award Number Of Active Plans ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfActivePlans	1	plan
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	49500000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	108000000.0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	71100000	USD
CY2019	iaci	Sharebased Compensation Arrangementby Sharebased Payment Award Percentageof Withholding Rate SharebasedCompensationArrangementbySharebasedPaymentAwardPercentageofWithholdingRate	0.50
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	19600000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	33158000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.42
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2019Q4	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	9009000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.06
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	158000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	8.16
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	7000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	23.21
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	23984000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.89
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y4M24D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	114687000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	15208000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.52
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y1M6D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	78854000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	107500000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	151200000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	100700000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	900000	shares
CY2017Q4	iaci	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value With Exercise Price Equal To Market Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueWithExercisePriceEqualToMarketPrice	4.30
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	217700000	USD
CY2019	iaci	Sharebased Compensation Arrangementby Sharebased Payment Award Plan Modification Incremental Compensation Cost Recognized In Current Period SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationIncrementalCompensationCostRecognizedInCurrentPeriod	29000000.0	USD
CY2018	iaci	Sharebased Compensation Arrangementby Sharebased Payment Award Plan Modification Incremental Compensation Cost Recognized In Current Period SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationIncrementalCompensationCostRecognizedInCurrentPeriod	56900000	USD
CY2017	iaci	Sharebased Compensation Arrangementby Sharebased Payment Award Plan Modification Incremental Compensation Cost Recognized In Current Period SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationIncrementalCompensationCostRecognizedInCurrentPeriod	93400000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Accelerated Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost	3900000	USD
CY2017Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	6600000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	600000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4700000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1700000	USD
CY2019	iaci	Sharebased Compensation Arrangementby Sharebased Payment Award Percentageof Withholding Rate SharebasedCompensationArrangementbySharebasedPaymentAwardPercentageofWithholdingRate	0.50
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	3979000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.67
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	472000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	4.03
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	4000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	4.03
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	3503000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	3.62
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1326205000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1132241000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	736386000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1326205000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1132241000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	736386000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1326205000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1132241000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	736386000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	103361000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	70859000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	38645000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	63906000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	-147871000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	38645000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	63906000	USD
CY2019	iaci	Interest Expense Third Party InterestExpenseThirdParty	11493000	USD
CY2019	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	16000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	6510000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	33646000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1668000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	35314000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	485000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	34829000	USD
CY2018	iaci	Interest Expense Third Party InterestExpenseThirdParty	11623000	USD
CY2018	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	118000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	17859000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	70024000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7483000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	77507000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	189000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	77318000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	-147871000	USD
CY2017	iaci	Interest Expense Third Party InterestExpenseThirdParty	1765000	USD
CY2017	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	5971000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	1974000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-153633000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-49106000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-104527000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1409000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-103118000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	68804000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	46976000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26837000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	101243000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	13234000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	119375000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	132609000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	18557000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	2901000	USD
CY2019	us-gaap	Lease Cost LeaseCost	21458000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	600000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	1400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	19882000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	23059000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	21890000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	20658000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	19875000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	62534000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	167898000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	35289000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	132609000	USD
CY2019Q4	iaci	Lessee Operating Lease Lease Notyet Commenced Amount LesseeOperatingLeaseLeaseNotyetCommencedAmount	300000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y8M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0599
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	58701000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	18363000	USD
CY2018Q4	iaci	Proceeds Receivable From Sale Of Business ProceedsReceivableFromSaleOfBusiness	24250000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	21790000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	16218000	USD
CY2019Q4	iaci	Proceeds Receivable From Sale Of Business ProceedsReceivableFromSaleOfBusiness	0	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	10866000	USD
CY2019Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	35103000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	35482000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	8983000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	67759000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	84933000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	171588000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	107332000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	68227000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	36473000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	103361000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	70859000	USD
CY2019Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	29682000	USD
CY2018Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	20216000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	28630000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	24977000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	58685000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	60794000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	116997000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	105987000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	6510000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	17859000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	1974000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	8000000.0	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	4800000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	390565000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	336984000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	221521000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	36377000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	504000	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	1417000	USD
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2016Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	409000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	420000	USD
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	USD
CY2016Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	10548000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	391478000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	338821000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221521000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46925000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	10290000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	12148000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2019	iaci	Interest Paid Related Party InterestPaidRelatedParty	54000	USD
CY2018	iaci	Interest Paid Related Party InterestPaidRelatedParty	155000	USD
CY2017	iaci	Interest Paid Related Party InterestPaidRelatedParty	6169000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	12224000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	332000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	1700000	USD
CY2019	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	957000	USD
CY2018	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	172000	USD
CY2017	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	402000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	303443000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	343896000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	357358000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	321508000	USD
CY2019Q1	us-gaap	Cost Of Revenue CostOfRevenue	10011000	USD
CY2019Q2	us-gaap	Cost Of Revenue CostOfRevenue	10722000	USD
CY2019Q3	us-gaap	Cost Of Revenue CostOfRevenue	13312000	USD
CY2019Q4	us-gaap	Cost Of Revenue CostOfRevenue	12448000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-3641000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	11403000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	24726000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	6157000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	9851000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	7234000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	18324000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	-95000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	9969000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6968000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17999000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-107000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.02
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.02
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.04
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	255311000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	294822000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	303116000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278992000	USD
CY2018Q1	us-gaap	Cost Of Revenue CostOfRevenue	13595000	USD
CY2018Q2	us-gaap	Cost Of Revenue CostOfRevenue	14703000	USD
CY2018Q3	us-gaap	Cost Of Revenue CostOfRevenue	14015000	USD
CY2018Q4	us-gaap	Cost Of Revenue CostOfRevenue	13426000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-10756000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	23262000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	33515000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	17885000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	-9114000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	23023000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	26786000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	36812000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8885000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22899000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26617000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	36687000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.06
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07

Files In Submission

Name	View Source	Status
0001705110-20-000003-index-headers.html	Edgar Link	pending
0001705110-20-000003-index.html	Edgar Link	pending
0001705110-20-000003.txt	Edgar Link	pending
0001705110-20-000003-xbrl.zip	Edgar Link	pending
angi-20193112x10k.htm	Edgar Link	pending
angi-20193112x10k_htm.xml	Edgar Link	completed
angi-ex21120191231.htm	Edgar Link	pending
angi-ex23120191231.htm	Edgar Link	pending
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$ANGI
Angi Inc. Stock $angi

2018 Q4 Form 10-K Financial Statement

#000170511020000003 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ANGI Angi Inc. Stock $angi

2018 Q4 Form 10-K Financial Statement

#000170511020000003 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ANGI
Angi Inc. Stock $angi