3.26.1 html 159 261 1 false 60 0 false 7 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.zillowgroup.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Statements 4 false false R5.htm 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 5 false false R6.htm 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS??? EQUITY Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITY CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS??? EQUITY Statements 6 false false R7.htm 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.zillowgroup.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 9952157 - Disclosure - Organization and Description of Business Sheet http://www.zillowgroup.com/role/OrganizationandDescriptionofBusiness Organization and Description of Business Notes 8 false false R9.htm 9952158 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.zillowgroup.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 9 false false R10.htm 9952159 - Disclosure - Financial Instruments Sheet http://www.zillowgroup.com/role/FinancialInstruments Financial Instruments Notes 10 false false R11.htm 9952160 - Disclosure - Property and Equipment, Net Sheet http://www.zillowgroup.com/role/PropertyandEquipmentNet Property and Equipment, Net Notes 11 false false R12.htm 9952161 - Disclosure - Intangible Assets, Net Sheet http://www.zillowgroup.com/role/IntangibleAssetsNet Intangible Assets, Net Notes 12 false false R13.htm 9952162 - Disclosure - Debt Sheet http://www.zillowgroup.com/role/Debt Debt Notes 13 false false R14.htm 9952163 - Disclosure - Income Taxes Sheet http://www.zillowgroup.com/role/IncomeTaxes Income Taxes Notes 14 false false R15.htm 9952164 - Disclosure - Share Repurchase Authorizations Sheet http://www.zillowgroup.com/role/ShareRepurchaseAuthorizations Share Repurchase Authorizations Notes 15 false false R16.htm 9952165 - Disclosure - Share-Based Awards Sheet http://www.zillowgroup.com/role/ShareBasedAwards Share-Based Awards Notes 16 false false R17.htm 9952166 - Disclosure - Net Income Per Share Sheet http://www.zillowgroup.com/role/NetIncomePerShare Net Income Per Share Notes 17 false false R18.htm 9952167 - Disclosure - Commitments and Contingencies Sheet http://www.zillowgroup.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 18 false false R19.htm 9952168 - Disclosure - Revenue and Contract Balances Sheet http://www.zillowgroup.com/role/RevenueandContractBalances Revenue and Contract Balances Notes 19 false false R20.htm 9952169 - Disclosure - Segment Information Sheet http://www.zillowgroup.com/role/SegmentInformation Segment Information Notes 20 false false R21.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 21 false false R22.htm 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.zillowgroup.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.zillowgroup.com/role/SummaryofSignificantAccountingPolicies 22 false false R23.htm 9955512 - Disclosure - Financial Instruments (Tables) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsTables Financial Instruments (Tables) Tables http://www.zillowgroup.com/role/FinancialInstruments 23 false false R24.htm 9955513 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.zillowgroup.com/role/PropertyandEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.zillowgroup.com/role/PropertyandEquipmentNet 24 false false R25.htm 9955514 - Disclosure - Intangible Assets, Net (Tables) Sheet http://www.zillowgroup.com/role/IntangibleAssetsNetTables Intangible Assets, Net (Tables) Tables http://www.zillowgroup.com/role/IntangibleAssetsNet 25 false false R26.htm 9955515 - Disclosure - Debt (Tables) Sheet http://www.zillowgroup.com/role/DebtTables Debt (Tables) Tables http://www.zillowgroup.com/role/Debt 26 false false R27.htm 9955516 - Disclosure - Share Repurchase Authorizations (Tables) Sheet http://www.zillowgroup.com/role/ShareRepurchaseAuthorizationsTables Share Repurchase Authorizations (Tables) Tables http://www.zillowgroup.com/role/ShareRepurchaseAuthorizations 27 false false R28.htm 9955517 - Disclosure - Share-Based Awards (Tables) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsTables Share-Based Awards (Tables) Tables http://www.zillowgroup.com/role/ShareBasedAwards 28 false false R29.htm 9955518 - Disclosure - Net Income Per Share (Tables) Sheet http://www.zillowgroup.com/role/NetIncomePerShareTables Net Income Per Share (Tables) Tables http://www.zillowgroup.com/role/NetIncomePerShare 29 false false R30.htm 9955519 - Disclosure - Segment Information (Tables) Sheet http://www.zillowgroup.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.zillowgroup.com/role/SegmentInformation 30 false false R31.htm 9955520 - Disclosure - Financial Instruments - Narrative (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsNarrativeDetails Financial Instruments - Narrative (Details) Details 31 false false R32.htm 9955521 - Disclosure - Financial Instruments - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsScheduleofFairValueMeasurementInputsandValuationTechniquesDetails Financial Instruments - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) Details 32 false false R33.htm 9955522 - Disclosure - Financial Instruments - Schedule of Changes in IRLCs (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsScheduleofChangesinIRLCsDetails Financial Instruments - Schedule of Changes in IRLCs (Details) Details 33 false false R34.htm 9955523 - Disclosure - Financial Instruments - Schedule of Notional Amounts (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsScheduleofNotionalAmountsDetails Financial Instruments - Schedule of Notional Amounts (Details) Details 34 false false R35.htm 9955524 - Disclosure - Financial Instruments - Schedule of Balances of Cash Equivalents and Investments (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsScheduleofBalancesofCashEquivalentsandInvestmentsDetails Financial Instruments - Schedule of Balances of Cash Equivalents and Investments (Details) Details 35 false false R36.htm 9955525 - Disclosure - Financial Instruments - Schedule of Debt-securities, Available-for-sale (Details) Sheet http://www.zillowgroup.com/role/FinancialInstrumentsScheduleofDebtsecuritiesAvailableforsaleDetails Financial Instruments - Schedule of Debt-securities, Available-for-sale (Details) Details 36 false false R37.htm 9955526 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) Sheet http://www.zillowgroup.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentNetDetails Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) Details 37 false false R38.htm 9955527 - Disclosure - Property and Equipment, Net - Narrative (Details) Sheet http://www.zillowgroup.com/role/PropertyandEquipmentNetNarrativeDetails Property and Equipment, Net - Narrative (Details) Details 38 false false R39.htm 9955528 - Disclosure - Intangible Assets, Net - Schedule of Intangible Assets, Net (Details) Sheet http://www.zillowgroup.com/role/IntangibleAssetsNetScheduleofIntangibleAssetsNetDetails Intangible Assets, Net - Schedule of Intangible Assets, Net (Details) Details 39 false false R40.htm 9955529 - Disclosure - Intangible Assets, Net - Narrative (Details) Sheet http://www.zillowgroup.com/role/IntangibleAssetsNetNarrativeDetails Intangible Assets, Net - Narrative (Details) Details 40 false false R41.htm 9955530 - Disclosure - Debt - Schedule of Revolving Credit Facilities and Lines of Credit (Details) Sheet http://www.zillowgroup.com/role/DebtScheduleofRevolvingCreditFacilitiesandLinesofCreditDetails Debt - Schedule of Revolving Credit Facilities and Lines of Credit (Details) Details 41 false false R42.htm 9955531 - Disclosure - Debt - Narrative (Details) Sheet http://www.zillowgroup.com/role/DebtNarrativeDetails Debt - Narrative (Details) Details 42 false false R43.htm 9955532 - Disclosure - Income Taxes (Details) Sheet http://www.zillowgroup.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.zillowgroup.com/role/IncomeTaxes 43 false false R44.htm 9955533 - Disclosure - Share Repurchase Authorizations - Narrative (Details) Sheet http://www.zillowgroup.com/role/ShareRepurchaseAuthorizationsNarrativeDetails Share Repurchase Authorizations - Narrative (Details) Details 44 false false R45.htm 9955534 - Disclosure - Share Repurchase Authorizations - Schedule of Repurchase Agreements (Details) Sheet http://www.zillowgroup.com/role/ShareRepurchaseAuthorizationsScheduleofRepurchaseAgreementsDetails Share Repurchase Authorizations - Schedule of Repurchase Agreements (Details) Details 45 false false R46.htm 9955535 - Disclosure - Share-Based Awards - Narrative (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsNarrativeDetails Share-Based Awards - Narrative (Details) Details 46 false false R47.htm 9955536 - Disclosure - Share-Based Awards - Schedule of Option Award Activity (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsScheduleofOptionAwardActivityDetails Share-Based Awards - Schedule of Option Award Activity (Details) Details 47 false false R48.htm 9955537 - Disclosure - Share-Based Awards - Schedule of Fair Value of Options Granted, Estimated at Date of Grant Using Black Scholes Merton Option Pricing Model (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsScheduleofFairValueofOptionsGrantedEstimatedatDateofGrantUsingBlackScholesMertonOptionPricingModelDetails Share-Based Awards - Schedule of Fair Value of Options Granted, Estimated at Date of Grant Using Black Scholes Merton Option Pricing Model (Details) Details 48 false false R49.htm 9955538 - Disclosure - Share-Based Awards - Schedule of Restricted Stock Units Activity (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsScheduleofRestrictedStockUnitsActivityDetails Share-Based Awards - Schedule of Restricted Stock Units Activity (Details) Details 49 false false R50.htm 9955539 - Disclosure - Share-Based Awards -Schedule of Effects of Share Based Compensation in Consolidated Statements of Operations (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsScheduleofEffectsofShareBasedCompensationinConsolidatedStatementsofOperationsDetails Share-Based Awards -Schedule of Effects of Share Based Compensation in Consolidated Statements of Operations (Details) Details 50 false false R51.htm 9955540 - Disclosure - Share-Based Awards - Schedule of Option Award Activity (Details) Sheet http://www.zillowgroup.com/role/ShareBasedAwardsScheduleofOptionAwardActivityDetails_1 Share-Based Awards - Schedule of Option Award Activity (Details) Details 51 false false R52.htm 9955541 - Disclosure - Net Income Per Share - Schedule of Denominators Used in Basic and Diluted Per Share Calculations (Details) Sheet http://www.zillowgroup.com/role/NetIncomePerShareScheduleofDenominatorsUsedinBasicandDilutedPerShareCalculationsDetails Net Income Per Share - Schedule of Denominators Used in Basic and Diluted Per Share Calculations (Details) Details 52 false false R53.htm 9955542 - Disclosure - Net Income Per Share - Schedule of Class C Capital Stock Equivalents Were Excluded From Calculations of Diluted Net Income (Loss) Per Share (Details) Sheet http://www.zillowgroup.com/role/NetIncomePerShareScheduleofClassCCapitalStockEquivalentsWereExcludedFromCalculationsofDilutedNetIncomeLossPerShareDetails Net Income Per Share - Schedule of Class C Capital Stock Equivalents Were Excluded From Calculations of Diluted Net Income (Loss) Per Share (Details) Details 53 false false R54.htm 9955543 - Disclosure - Commitments and Contingencies - Narrative (Details) Sheet http://www.zillowgroup.com/role/CommitmentsandContingenciesNarrativeDetails Commitments and Contingencies - Narrative (Details) Details 54 false false R55.htm 9955544 - Disclosure - Revenue and Contract Balances - Narrative (Details) Sheet http://www.zillowgroup.com/role/RevenueandContractBalancesNarrativeDetails Revenue and Contract Balances - Narrative (Details) Details 55 false false R56.htm 9955545 - Disclosure - Segment Information (Details) Sheet http://www.zillowgroup.com/role/SegmentInformationDetails Segment Information (Details) Details http://www.zillowgroup.com/role/SegmentInformationTables 56 false false All Reports Book All Reports z-20260331.htm z-20260331.xsd z-20260331_cal.xml z-20260331_def.xml z-20260331_lab.xml z-20260331_pre.xml http://fasb.org/srt/2026 http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 true true