3.19.2 html 181 326 1 false 41 0 false 7 false false R1.htm 0001000 - Document - Document And Entity Information Sheet http://www.inwk.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 1001000 - Statement - Condensed Consolidated Statement of Comprehensive Income Sheet http://www.inwk.com/role/CondensedConsolidatedStatementOfComprehensiveIncome Condensed Consolidated Statement of Comprehensive Income Statements 2 false false R3.htm 1002000 - Statement - Condensed Consolidated Balance Sheet Sheet http://www.inwk.com/role/CondensedConsolidatedBalanceSheet Condensed Consolidated Balance Sheet Statements 3 false false R4.htm 1002001 - Statement - Condensed Consolidated Balance Sheet (Parenthetical) Sheet http://www.inwk.com/role/CondensedConsolidatedBalanceSheetParenthetical Condensed Consolidated Balance Sheet (Parenthetical) Statements 4 false false R5.htm 1003000 - Statement - Condensed Consolidated Statement of Stockholders' Equity Statement Sheet http://www.inwk.com/role/CondensedConsolidatedStatementOfStockholdersEquityStatement Condensed Consolidated Statement of Stockholders' Equity Statement Statements 5 false false R6.htm 1004000 - Statement - Condensed Consolidated Statement of Cash Flows Sheet http://www.inwk.com/role/CondensedConsolidatedStatementOfCashFlows Condensed Consolidated Statement of Cash Flows Statements 6 false false R7.htm 2101100 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.inwk.com/role/SummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 7 false false R8.htm 2104100 - Disclosure - Revenue Recognition Sheet http://www.inwk.com/role/RevenueRecognition Revenue Recognition Notes 8 false false R9.htm 2105100 - Disclosure - Goodwill Sheet http://www.inwk.com/role/Goodwill Goodwill Notes 9 false false R10.htm 2105100 - Disclosure - Leases Sheet http://www.inwk.com/role/Leases Leases Notes 10 false false R11.htm 2108100 - Disclosure - Other Intangible Assets Sheet http://www.inwk.com/role/OtherIntangibleAssets Other Intangible Assets Notes 11 false false R12.htm 2109100 - Disclosure - Restructuring Activities and Other Charges Sheet http://www.inwk.com/role/RestructuringActivitiesAndOtherCharges Restructuring Activities and Other Charges Notes 12 false false R13.htm 2110100 - Disclosure - Income Taxes Sheet http://www.inwk.com/role/IncomeTaxes Income Taxes Notes 13 false false R14.htm 2111100 - Disclosure - Earnings Per Share Sheet http://www.inwk.com/role/EarningsPerShare Earnings Per Share Notes 14 false false R15.htm 2113100 - Disclosure - Related Party Transactions Sheet http://www.inwk.com/role/RelatedPartyTransactions Related Party Transactions Notes 15 false false R16.htm 2120100 - Disclosure - Fair Value Measurement Sheet http://www.inwk.com/role/FairValueMeasurement Fair Value Measurement Notes 16 false false R17.htm 2121100 - Disclosure - Commitments and Contingencies Sheet http://www.inwk.com/role/CommitmentsAndContingencies Commitments and Contingencies Notes 17 false false R18.htm 2122100 - Disclosure - Revolving Credit Facilities Sheet http://www.inwk.com/role/RevolvingCreditFacilities Revolving Credit Facilities Notes 18 false false R19.htm 2123100 - Disclosure - Share Repurchase Program Sheet http://www.inwk.com/role/ShareRepurchaseProgram Share Repurchase Program Notes 19 false false R20.htm 2124100 - Disclosure - Business Segments Sheet http://www.inwk.com/role/BusinessSegments Business Segments Notes 20 false false R21.htm 2125100 - Disclosure - Subsequent Events Sheet http://www.inwk.com/role/SubsequentEvents Subsequent Events Notes 21 false false R22.htm 2201201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.inwk.com/role/SummaryOfSignificantAccountingPolicies 22 false false R23.htm 2304301 - Disclosure - Revenue Recognition Revenue Recognition (Tables) Sheet http://www.inwk.com/role/RevenueRecognitionRevenueRecognitionTables Revenue Recognition Revenue Recognition (Tables) Tables 23 false false R24.htm 2305301 - Disclosure - Goodwill (Tables) Sheet http://www.inwk.com/role/GoodwillTables Goodwill (Tables) Tables http://www.inwk.com/role/Goodwill 24 false false R25.htm 2305301 - Disclosure - Leases (Tables) Sheet http://www.inwk.com/role/LeasesTables Leases (Tables) Tables http://www.inwk.com/role/Leases 25 false false R26.htm 2308301 - Disclosure - Other Intangible Assets (Tables) Sheet http://www.inwk.com/role/OtherIntangibleAssetsTables Other Intangible Assets (Tables) Tables http://www.inwk.com/role/OtherIntangibleAssets 26 false false R27.htm 2309301 - Disclosure - Restructuring Activities and Other Charges (Tables) Sheet http://www.inwk.com/role/RestructuringActivitiesAndOtherChargesTables Restructuring Activities and Other Charges (Tables) Tables http://www.inwk.com/role/RestructuringActivitiesAndOtherCharges 27 false false R28.htm 2311301 - Disclosure - Earnings Per Share (Tables) Sheet http://www.inwk.com/role/EarningsPerShareTables Earnings Per Share (Tables) Tables http://www.inwk.com/role/EarningsPerShare 28 false false R29.htm 2324301 - Disclosure - Business Segments (Tables) Sheet http://www.inwk.com/role/BusinessSegmentsTables Business Segments (Tables) Tables http://www.inwk.com/role/BusinessSegments 29 false false R30.htm 2401402 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies 30 false false R31.htm 2404402 - Disclosure - Revenue Recognition (Details) Sheet http://www.inwk.com/role/RevenueRecognitionDetails Revenue Recognition (Details) Details http://www.inwk.com/role/RevenueRecognitionRevenueRecognitionTables 31 false false R32.htm 2405402 - Disclosure - Goodwill (Details) Sheet http://www.inwk.com/role/GoodwillDetails Goodwill (Details) Details http://www.inwk.com/role/GoodwillTables 32 false false R33.htm 2405402 - Disclosure - Leases - Narrative (Details) Sheet http://www.inwk.com/role/LeasesNarrativeDetails Leases - Narrative (Details) Details 33 false false R34.htm 2405403 - Disclosure - Leases - Supplemental Balance Sheet Information (Details) Sheet http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails Leases - Supplemental Balance Sheet Information (Details) Details 34 false false R35.htm 2405404 - Disclosure - Leases - Components of Lease Cost (Details) Sheet http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails Leases - Components of Lease Cost (Details) Details 35 false false R36.htm 2405405 - Disclosure - Leases - Average Lease Terms and Discount Rates (Details) Sheet http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails Leases - Average Lease Terms and Discount Rates (Details) Details 36 false false R37.htm 2405406 - Disclosure - Leases - Supplemental Cash Flow Information (Details) Sheet http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails Leases - Supplemental Cash Flow Information (Details) Details 37 false false R38.htm 2405407 - Disclosure - Leases - Aggregate Future Lease Payments (Details) Sheet http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails Leases - Aggregate Future Lease Payments (Details) Details 38 false false R39.htm 2406401 - Disclosure - Contingent Consideration - Contingent Consideration (Details) Sheet http://www.inwk.com/role/ContingentConsiderationContingentConsiderationDetails Contingent Consideration - Contingent Consideration (Details) Details 39 false false R40.htm 2408402 - Disclosure - Other Intangible Assets - Schedule of Other Intangible Assets (Details) Sheet http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfOtherIntangibleAssetsDetails Other Intangible Assets - Schedule of Other Intangible Assets (Details) Details 40 false false R41.htm 2408403 - Disclosure - Other Intangible Assets - Additional Information (Details) Sheet http://www.inwk.com/role/OtherIntangibleAssetsAdditionalInformationDetails Other Intangible Assets - Additional Information (Details) Details 41 false false R42.htm 2408404 - Disclosure - Other Intangible Assets - Schedule of Other Intangible Amortization (Details) Sheet http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfOtherIntangibleAmortizationDetails Other Intangible Assets - Schedule of Other Intangible Amortization (Details) Details 42 false false R43.htm 2409402 - Disclosure - Restructuring Activities and Other Charges - Narrative (Details) Sheet http://www.inwk.com/role/RestructuringActivitiesAndOtherChargesNarrativeDetails Restructuring Activities and Other Charges - Narrative (Details) Details 43 false false R44.htm 2409403 - Disclosure - Restructuring Activities and Other Charges (Details) Sheet http://www.inwk.com/role/RestructuringActivitiesAndOtherChargesDetails Restructuring Activities and Other Charges (Details) Details http://www.inwk.com/role/RestructuringActivitiesAndOtherChargesTables 44 false false R45.htm 2410401 - Disclosure - Income Taxes (Details) Sheet http://www.inwk.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.inwk.com/role/IncomeTaxes 45 false false R46.htm 2411402 - Disclosure - Earnings Per Share - Schedule of Basic and Diluted Earnings per Share (Details) Sheet http://www.inwk.com/role/EarningsPerShareScheduleOfBasicAndDilutedEarningsPerShareDetails Earnings Per Share - Schedule of Basic and Diluted Earnings per Share (Details) Details 46 false false R47.htm 2413401 - Disclosure - Related Party Transactions (Details) Sheet http://www.inwk.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://www.inwk.com/role/RelatedPartyTransactions 47 false false R48.htm 2421401 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.inwk.com/role/CommitmentsAndContingenciesDetails Commitments and Contingencies (Details) Details http://www.inwk.com/role/CommitmentsAndContingencies 48 false false R49.htm 2422401 - Disclosure - Revolving Credit Facilities (Details) Sheet http://www.inwk.com/role/RevolvingCreditFacilitiesDetails Revolving Credit Facilities (Details) Details http://www.inwk.com/role/RevolvingCreditFacilities 49 false false R50.htm 2423401 - Disclosure - Share Repurchase Program (Details) Sheet http://www.inwk.com/role/ShareRepurchaseProgramDetails Share Repurchase Program (Details) Details http://www.inwk.com/role/ShareRepurchaseProgram 50 false false R51.htm 2424402 - Disclosure - Business Segments - Schedule of Business Segment Financial Information (Details) Sheet http://www.inwk.com/role/BusinessSegmentsScheduleOfBusinessSegmentFinancialInformationDetails Business Segments - Schedule of Business Segment Financial Information (Details) Details 51 false false R52.htm 2424403 - Disclosure - Business Segments - Schedule of Business Segments Adjusted EBITDA (Details) Sheet http://www.inwk.com/role/BusinessSegmentsScheduleOfBusinessSegmentsAdjustedEbitdaDetails Business Segments - Schedule of Business Segments Adjusted EBITDA (Details) Details 52 false false R53.htm 2425401 - Disclosure - Subsequent Events (Details) Sheet http://www.inwk.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://www.inwk.com/role/SubsequentEvents 53 false false All Reports Book All Reports inwk-20190630.xml inwk-20190630.xsd inwk-20190630_cal.xml inwk-20190630_def.xml inwk-20190630_lab.xml inwk-20190630_pre.xml http://xbrl.sec.gov/currency/2017-01-31 http://fasb.org/us-gaap/2018-01-31 http://xbrl.sec.gov/dei/2018-01-31 http://xbrl.sec.gov/exch/2018-01-31 http://fasb.org/srt/2018-01-31 true true