{
 "instance": {
  "inwk201910-k.htm": {
   "axisCustom": 0,
   "axisStandard": 29,
   "contextCount": 402,
   "dts": {
    "calculationLink": {
     "local": [
      "inwk-20191231_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "inwk-20191231_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "inwk201910-k.htm"
     ]
    },
    "labelLink": {
     "local": [
      "inwk-20191231_lab.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml",
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "inwk-20191231_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml",
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "inwk-20191231.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd",
      "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd",
      "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd"
     ]
    }
   },
   "elementCount": 755,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2019-01-31": 32,
    "http://www.inwk.com/20191231": 2,
    "http://xbrl.sec.gov/dei/2019-01-31": 5,
    "total": 39
   },
   "keyCustom": 92,
   "keyStandard": 469,
   "memberCustom": 25,
   "memberStandard": 62,
   "nsprefix": "inwk",
   "nsuri": "http://www.inwk.com/20191231",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001000 - Document - Cover",
     "role": "http://www.inwk.com/role/Cover",
     "shortName": "Cover",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2105100 - Disclosure - Leases",
     "role": "http://www.inwk.com/role/Leases",
     "shortName": "Leases",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R100": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AccountsReceivableNetCurrent",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2440403 - Disclosure - Revision of Prior Period Financial Statements - Revised Consolidated Balance Sheet Amounts (Details)",
     "role": "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
     "shortName": "Revision of Prior Period Financial Statements - Revised Consolidated Balance Sheet Amounts (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q3",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:AccountsReceivableNetCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R101": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2440404 - Disclosure - Revision of Prior Period Financial Statements - Revised Consolidated Statements of Cash Flows Amounts (Details)",
     "role": "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
     "shortName": "Revision of Prior Period Financial Statements - Revised Consolidated Statements of Cash Flows Amounts (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2018Q4YTD_srt_RestatementAxis_srt_ScenarioPreviouslyReportedMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:DeferredIncomeTaxExpenseBenefit",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2107100 - Disclosure - Revenue Recognition",
     "role": "http://www.inwk.com/role/RevenueRecognition",
     "shortName": "Revenue Recognition",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2109100 - Disclosure - Goodwill",
     "role": "http://www.inwk.com/role/Goodwill",
     "shortName": "Goodwill",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2111100 - Disclosure - Other Intangible Assets",
     "role": "http://www.inwk.com/role/OtherIntangibleAssets",
     "shortName": "Other Intangible Assets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestructuringImpairmentAndOtherActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2113100 - Disclosure - Restructuring Activities and Charges",
     "role": "http://www.inwk.com/role/RestructuringActivitiesAndCharges",
     "shortName": "Restructuring Activities and Charges",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestructuringImpairmentAndOtherActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2115100 - Disclosure - Property and Equipment",
     "role": "http://www.inwk.com/role/PropertyAndEquipment",
     "shortName": "Property and Equipment",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2117100 - Disclosure - Revolving Credit Facilities",
     "role": "http://www.inwk.com/role/RevolvingCreditFacilities",
     "shortName": "Revolving Credit Facilities",
     "subGroupType": "",
     "uniqueAnchor": null
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2119100 - Disclosure - Long-Term Debt",
     "role": "http://www.inwk.com/role/LongTermDebt",
     "shortName": "Long-Term Debt",
     "subGroupType": "",
     "uniqueAnchor": null
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2121100 - Disclosure - Commitments and Contingencies",
     "role": "http://www.inwk.com/role/CommitmentsAndContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2123100 - Disclosure - Income Taxes",
     "role": "http://www.inwk.com/role/IncomeTaxes",
     "shortName": "Income Taxes",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001000 - Statement - Consolidated Statements of Operations",
     "role": "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
     "shortName": "Consolidated Statements of Operations",
     "subGroupType": "",
     "uniqueAnchor": null
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2125100 - Disclosure - Fair Value Measurement",
     "role": "http://www.inwk.com/role/FairValueMeasurement",
     "shortName": "Fair Value Measurement",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2127100 - Disclosure - (Loss) Earnings Per Share",
     "role": "http://www.inwk.com/role/LossEarningsPerShare",
     "shortName": "(Loss) Earnings Per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2129100 - Disclosure - Share Repurchase Program",
     "role": "http://www.inwk.com/role/ShareRepurchaseProgram",
     "shortName": "Share Repurchase Program",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2131100 - Disclosure - Stock-Based Compensation Plan",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlan",
     "shortName": "Stock-Based Compensation Plan",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CompensationAndEmployeeBenefitPlansTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2133100 - Disclosure - Benefit Plans",
     "role": "http://www.inwk.com/role/BenefitPlans",
     "shortName": "Benefit Plans",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CompensationAndEmployeeBenefitPlansTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2135100 - Disclosure - Related Party Transactions",
     "role": "http://www.inwk.com/role/RelatedPartyTransactions",
     "shortName": "Related Party Transactions",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2137100 - Disclosure - Business Segments",
     "role": "http://www.inwk.com/role/BusinessSegments",
     "shortName": "Business Segments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:QuarterlyFinancialInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2139100 - Disclosure - Quarterly Selected Financial Information (Unaudited)",
     "role": "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnaudited",
     "shortName": "Quarterly Selected Financial Information (Unaudited)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:QuarterlyFinancialInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountingChangesAndErrorCorrectionsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2140100 - Disclosure - Revision of Prior Period Financial Statements",
     "role": "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatements",
     "shortName": "Revision of Prior Period Financial Statements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountingChangesAndErrorCorrectionsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2203201 - Disclosure - Summary of Significant Accounting Policies (Policies)",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies",
     "shortName": "Summary of Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002000 - Statement - Consolidated Statements of Comprehensive Income (Loss)",
     "role": "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
     "shortName": "Consolidated Statements of Comprehensive Income (Loss)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountsReceivableAllowanceForCreditLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2303302 - Disclosure - Summary of Significant Accounting Policies (Tables)",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesTables",
     "shortName": "Summary of Significant Accounting Policies (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountsReceivableAllowanceForCreditLossTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "inwk:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2305301 - Disclosure - Leases (Tables)",
     "role": "http://www.inwk.com/role/LeasesTables",
     "shortName": "Leases (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "inwk:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2307301 - Disclosure - Revenue Recognition (Tables)",
     "role": "http://www.inwk.com/role/RevenueRecognitionTables",
     "shortName": "Revenue Recognition (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfGoodwillTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2309301 - Disclosure - Goodwill (Tables)",
     "role": "http://www.inwk.com/role/GoodwillTables",
     "shortName": "Goodwill (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfGoodwillTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2311301 - Disclosure - Other Intangible Assets (Tables)",
     "role": "http://www.inwk.com/role/OtherIntangibleAssetsTables",
     "shortName": "Other Intangible Assets (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2313301 - Disclosure - Restructuring Activities and Charges (Tables)",
     "role": "http://www.inwk.com/role/RestructuringActivitiesAndChargesTables",
     "shortName": "Restructuring Activities and Charges (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2315301 - Disclosure - Property and Equipment (Tables)",
     "role": "http://www.inwk.com/role/PropertyAndEquipmentTables",
     "shortName": "Property and Equipment (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": null
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2317301 - Disclosure - Revolving Credit Facilities (Tables)",
     "role": "http://www.inwk.com/role/RevolvingCreditFacilitiesTables",
     "shortName": "Revolving Credit Facilities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": null
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2319301 - Disclosure - Long-Term Debt (Tables)",
     "role": "http://www.inwk.com/role/LongTermDebtTables",
     "shortName": "Long-Term Debt (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "lang": "en-US",
      "name": "inwk:ScheduleofWarrantLiabilitiesatFairValueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2323301 - Disclosure - Income Taxes (Tables)",
     "role": "http://www.inwk.com/role/IncomeTaxesTables",
     "shortName": "Income Taxes (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003000 - Statement - Consolidated Balance Sheets",
     "role": "http://www.inwk.com/role/ConsolidatedBalanceSheets",
     "shortName": "Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2325301 - Disclosure - Fair Value Measurement (Tables)",
     "role": "http://www.inwk.com/role/FairValueMeasurementTables",
     "shortName": "Fair Value Measurement (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2327301 - Disclosure - (Loss) Earnings Per Share (Tables)",
     "role": "http://www.inwk.com/role/LossEarningsPerShareTables",
     "shortName": "(Loss) Earnings Per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2331301 - Disclosure - Stock-Based Compensation Plan (Tables)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanTables",
     "shortName": "Stock-Based Compensation Plan (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2337301 - Disclosure - Business Segments (Tables)",
     "role": "http://www.inwk.com/role/BusinessSegmentsTables",
     "shortName": "Business Segments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2339301 - Disclosure - Quarterly Selected Financial Information (Unaudited) (Tables)",
     "role": "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedTables",
     "shortName": "Quarterly Selected Financial Information (Unaudited) (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2340301 - Disclosure - Revision of Prior Period Financial Statements (Tables)",
     "role": "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsTables",
     "shortName": "Revision of Prior Period Financial Statements (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ForeignCurrencyTransactionGainLossRealized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2403403 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
     "shortName": "Summary of Significant Accounting Policies - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ForeignCurrencyTransactionGainLossRealized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:AccountsReceivableAllowanceForCreditLossTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivable",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2403404 - Disclosure - Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details)",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails",
     "shortName": "Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:AccountsReceivableAllowanceForCreditLossTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2016Q4",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_PropertyPlantAndEquipmentByTypeAxis_us-gaap_ComputerEquipmentMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2403406 - Disclosure - Summary of Significant Accounting Policies - Summary of Property and Equipment (Details)",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails",
     "shortName": "Summary of Significant Accounting Policies - Summary of Property and Equipment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_PropertyPlantAndEquipmentByTypeAxis_us-gaap_ComputerEquipmentMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:OperatingandFinanceLeaseRightofUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405402 - Disclosure - Leases - Narrative (Details)",
     "role": "http://www.inwk.com/role/LeasesNarrativeDetails",
     "shortName": "Leases - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2019Q1Jan01_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_us-gaap_AccountingStandardsUpdate201602Member",
      "decimals": "-5",
      "lang": null,
      "name": "inwk:OperatingandFinanceLeaseRightofUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": null,
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003501 - Statement - Consolidated Balance Sheets [Parenthetical]",
     "role": "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical",
     "shortName": "Consolidated Balance Sheets [Parenthetical]",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "inwk:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405403 - Disclosure - Leases - Supplemental Balance Sheet Information (Details)",
     "role": "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails",
     "shortName": "Leases - Supplemental Balance Sheet Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "inwk:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405404 - Disclosure - Leases - Components of Lease Cost (Details)",
     "role": "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails",
     "shortName": "Leases - Components of Lease Cost (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405405 - Disclosure - Leases - Average Lease Terms and Discount Rates (Details)",
     "role": "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails",
     "shortName": "Leases - Average Lease Terms and Discount Rates (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405406 - Disclosure - Leases - Supplemental Cash Flow Information (Details)",
     "role": "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails",
     "shortName": "Leases - Supplemental Cash Flow Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405407 - Disclosure - Leases - Aggregate Future Lease Payments (Details)",
     "role": "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails",
     "shortName": "Leases - Aggregate Future Lease Payments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:CapitalizedContractCostAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407402 - Disclosure - Revenue Recognition (Details)",
     "role": "http://www.inwk.com/role/RevenueRecognitionDetails",
     "shortName": "Revenue Recognition (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:CapitalizedContractCostAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:Goodwill",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409402 - Disclosure - Goodwill - Schedule of Goodwill (Details)",
     "role": "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
     "shortName": "Goodwill - Schedule of Goodwill (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfGoodwillTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:GoodwillForeignCurrencyTranslationGainLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2018Q4QTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:GoodwillImpairmentLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409403 - Disclosure - Goodwill - Narrative (Details)",
     "role": "http://www.inwk.com/role/GoodwillNarrativeDetails",
     "shortName": "Goodwill - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FiniteLivedIntangibleAssetsGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411402 - Disclosure - Other Intangible Assets - Schedule of Intangible Assets (Details)",
     "role": "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
     "shortName": "Other Intangible Assets - Schedule of Intangible Assets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FiniteLivedIntangibleAssetsGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AmortizationOfIntangibleAssets",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411403 - Disclosure - Other Intangible Assets - Narrative (Details)",
     "role": "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
     "shortName": "Other Intangible Assets - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AmortizationOfIntangibleAssets",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004000 - Statement - Consolidated Statements of Stockholders' Equity",
     "role": "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
     "shortName": "Consolidated Statements of Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411404 - Disclosure - Other Intangible Assets - Schedule of Future Amortization Expense (Details)",
     "role": "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails",
     "shortName": "Other Intangible Assets - Schedule of Future Amortization Expense (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RestructuringCharges",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413402 - Disclosure - Restructuring Activities and Charges - Narrative (Details)",
     "role": "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
     "shortName": "Restructuring Activities and Charges - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2018Q3Aug10_us-gaap_RestructuringPlanAxis_inwk_RestructuringPlan2018Member",
      "decimals": "-5",
      "lang": null,
      "name": "inwk:RestructuringandRelatedCostExpectedCostNoncash",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R62": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RestructuringCharges",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413403 - Disclosure - Restructuring Activities and Charges - Schedule of Restructuring Charges (Details)",
     "role": "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
     "shortName": "Restructuring Activities and Charges - Schedule of Restructuring Charges (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_RestructuringPlanAxis_inwk_RestructuringPlan2018Member",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:PrepaymentsforRestructuring",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R63": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RestructuringCharges",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413404 - Disclosure - Restructuring Activities and Charges - Schedule of Restructuring Costs by Segment (Details)",
     "role": "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails",
     "shortName": "Restructuring Activities and Charges - Schedule of Restructuring Costs by Segment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_srt_ConsolidationItemsAxis_us-gaap_OperatingSegmentsMember_us-gaap_RestructuringPlanAxis_inwk_RestructuringPlan2018Member_us-gaap_StatementBusinessSegmentsAxis_inwk_NorthAmericaSegmentMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:RestructuringCharges",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R64": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415402 - Disclosure - Property and Equipment - Schedule of Property and Equipment (Details)",
     "role": "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
     "shortName": "Property and Equipment - Schedule of Property and Equipment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R65": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:Depreciation",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415403 - Disclosure - Property and Equipment - Narrative (Details)",
     "role": "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
     "shortName": "Property and Equipment - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2017Q4QTD",
      "decimals": "-5",
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentDisposals",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R66": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2019Q3Jul16_srt_StatementGeographicalAxis_country_CN_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417402 - Disclosure - Revolving Credit Facilities - Narrative (Details)",
     "role": "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
     "shortName": "Revolving Credit Facilities - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2019Q3Jul16_srt_StatementGeographicalAxis_country_CN_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R67": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417403 - Disclosure - Revolving Credit Facilities - Change in Fair Value of ABL Embedded Derivative (Details)",
     "role": "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
     "shortName": "Revolving Credit Facilities - Change in Fair Value of ABL Embedded Derivative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember_us-gaap_DebtInstrumentAxis_inwk_ABLCreditAgreementMember",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:EmbeddedDerivativeIssuanceOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R68": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember_us-gaap_DebtInstrumentAxis_inwk_ABLCreditAgreementMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:LineOfCredit",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417404 - Disclosure - Revolving Credit Facilities - Summary of ABL Credit Facility (Details)",
     "role": "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails",
     "shortName": "Revolving Credit Facilities - Summary of ABL Credit Facility (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember_us-gaap_DebtInstrumentAxis_inwk_ABLCreditAgreementMember",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:LongtermLineofCreditBeforeDiscountsandDerivativeLiabilityNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R69": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "D2019Q3SD",
      "decimals": "4",
      "first": true,
      "lang": null,
      "name": "inwk:DebtInstrumentConvertedDebtInterestRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419402 - Disclosure - Long-Term Debt - Narrative (Details)",
     "role": "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
     "shortName": "Long-Term Debt - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "D2019Q3SD",
      "decimals": "4",
      "first": true,
      "lang": null,
      "name": "inwk:DebtInstrumentConvertedDebtInterestRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q3YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005000 - Statement - Consolidated Statements of Cash Flows",
     "role": "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
     "shortName": "Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R70": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419403 - Disclosure - Long-Term Debt - Change in Fair Value of Term Loan Embedded Derivative (Details)",
     "role": "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
     "shortName": "Long-Term Debt - Change in Fair Value of Term Loan Embedded Derivative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_CreditFacilityAxis_inwk_TermLoanFacilityMember_us-gaap_DebtInstrumentAxis_inwk_TermLoanCreditAgreementMember",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:EmbeddedDerivativeIssuanceOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R71": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:WarrantLiabilityGainLossonWarrants",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419404 - Disclosure - Long-Term Debt - Change in Fair Value of Initial Warrant (Details)",
     "role": "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
     "shortName": "Long-Term Debt - Change in Fair Value of Initial Warrant (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "inwk:ScheduleofWarrantLiabilitiesatFairValueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_ClassOfWarrantOrRightAxis_inwk_InitialWarrantMember",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:WarrantLiabilityIssuanceOfWarrant",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R72": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_CreditFacilityAxis_inwk_TermLoanFacilityMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:LineOfCredit",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419405 - Disclosure - Long-Term Debt - Summary of Term Loan Credit Facility (Details)",
     "role": "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
     "shortName": "Long-Term Debt - Summary of Term Loan Credit Facility (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_CreditFacilityAxis_inwk_TermLoanFacilityMember",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:LongtermLineofCreditBeforeDiscountsandDerivativeLiabilityNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R73": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "D2013Q4dec01-dec31_srt_LitigationCaseAxis_inwk_WrongfulTerminationLawsuitProductionsGraphicsMember",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LossContingencyDamagesSoughtValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421403 - Disclosure - Commitments and Contingencies - Narrative (Details)",
     "role": "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails",
     "shortName": "Commitments and Contingencies - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "D2013Q4dec01-dec31_srt_LitigationCaseAxis_inwk_WrongfulTerminationLawsuitProductionsGraphicsMember",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:LossContingencyDamagesSoughtValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R74": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CurrentFederalTaxExpenseBenefit",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423402 - Disclosure - Income Taxes - Components of Income Taxes (Details)",
     "role": "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails",
     "shortName": "Income Taxes - Components of Income Taxes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CurrentFederalTaxExpenseBenefit",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R75": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423403 - Disclosure - Income Taxes - Effective Income Tax Reconciliation (Details)",
     "role": "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails",
     "shortName": "Income Taxes - Effective Income Tax Reconciliation (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R76": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DeferredTaxAssetsInventory",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423404 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details)",
     "role": "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails",
     "shortName": "Income Taxes - Deferred Tax Assets and Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DeferredTaxAssetsInventory",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R77": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423405 - Disclosure - Income Taxes - Narrative (Details)",
     "role": "http://www.inwk.com/role/IncomeTaxesNarrativeDetails",
     "shortName": "Income Taxes - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R78": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefits",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2423406 - Disclosure - Income Taxes - Uncertain Tax Positions (Details)",
     "role": "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails",
     "shortName": "Income Taxes - Uncertain Tax Positions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R79": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:SaleOfStockPricePerShare",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2425402 - Disclosure - Fair Value Measurement - Schedule of Fair Value Assumptions (Details)",
     "role": "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails",
     "shortName": "Fair Value Measurement - Schedule of Fair Value Assumptions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:SaleOfStockPricePerShare",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NatureOfOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101100 - Disclosure - Description of the Business",
     "role": "http://www.inwk.com/role/DescriptionOfBusiness",
     "shortName": "Description of the Business",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NatureOfOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R80": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:WarrantLiabilityFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2425403 - Disclosure - Fair Value Measurement - Schedule of Fair Value Measurements (Details)",
     "role": "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
     "shortName": "Fair Value Measurement - Schedule of Fair Value Measurements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:WarrantLiabilityFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R81": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2017Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427402 - Disclosure - (Loss) Earnings Per Share - Narrative (Details)",
     "role": "http://www.inwk.com/role/LossEarningsPerShareNarrativeDetails",
     "shortName": "(Loss) Earnings Per Share - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2017Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R82": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427403 - Disclosure - (Loss) Earnings Per Share - Schedule of Earnings Per Share (Details)",
     "role": "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails",
     "shortName": "(Loss) Earnings Per Share - Schedule of Earnings Per Share (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:WeightedAverageNumberOfSharesOutstandingBeforeAdjustments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R83": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2015Q1feb12",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2429401 - Disclosure - Share Repurchase Program (Details)",
     "role": "http://www.inwk.com/role/ShareRepurchaseProgramDetails",
     "shortName": "Share Repurchase Program (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2015Q1feb12",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R84": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431402 - Disclosure - Stock-Based Compensation Plan - Narrative (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
     "shortName": "Stock-Based Compensation Plan - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R85": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431403 - Disclosure - Stock-Based Compensation Plan - Stock Option Activity (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails",
     "shortName": "Stock-Based Compensation Plan - Stock Option Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R86": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431404 - Disclosure - Stock-Based Compensation Plan - Option Assumptions (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
     "shortName": "Stock-Based Compensation Plan - Option Assumptions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R87": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_StockAppreciationRightsSARSMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431405 - Disclosure - Stock-Based Compensation Plan - SAR Activity (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails",
     "shortName": "Stock-Based Compensation Plan - SAR Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_StockAppreciationRightsSARSMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R88": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_RestrictedStockMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431407 - Disclosure - Stock-Based Compensation Plan - Restricted Share Activity (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
     "shortName": "Stock-Based Compensation Plan - Restricted Share Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_us-gaap_RestrictedStockMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R89": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_RestrictedStockUnitsRSUMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431408 - Disclosure - Stock-Based Compensation Plan - Restricted Share Unit Activity (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails",
     "shortName": "Stock-Based Compensation Plan - Restricted Share Unit Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_us-gaap_RestrictedStockUnitsRSUMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2103100 - Disclosure - Summary of Significant Accounting Policies",
     "role": "http://www.inwk.com/role/SummaryOfSignificantAccountingPolicies",
     "shortName": "Summary of Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R90": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_PerformanceSharesMember",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431409 - Disclosure - Stock-Based Compensation Plan - Performance Share Unit Activity (Details)",
     "role": "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
     "shortName": "Stock-Based Compensation Plan - Performance Share Unit Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_us-gaap_PerformanceSharesMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R91": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "inwk:DefinedContributionPlanRequiredPeriodofService",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2433401 - Disclosure - Benefit Plans (Details)",
     "role": "http://www.inwk.com/role/BenefitPlansDetails",
     "shortName": "Benefit Plans (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "inwk:DefinedContributionPlanRequiredPeriodofService",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R92": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_inwk_ArthurJ.GallagherCo.Member",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromRelatedParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2435401 - Disclosure - Related Party Transactions (Details)",
     "role": "http://www.inwk.com/role/RelatedPartyTransactionsDetails",
     "shortName": "Related Party Transactions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_inwk_ArthurJ.GallagherCo.Member",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromRelatedParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R93": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437402 - Disclosure - Business Segments - Narrative (Details)",
     "role": "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
     "shortName": "Business Segments - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     }
    },
    "R94": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:NetRevenueFromThirdParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437403 - Disclosure - Business Segments - Revenue by Segment (Details)",
     "role": "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
     "shortName": "Business Segments - Revenue by Segment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:NetRevenueFromThirdParties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R95": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "inwk:EarningsBeforeInterestTaxDepreciationAndAmortization",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437404 - Disclosure - Business Segments - EBITDA and Adjusted EBITDA (Details)",
     "role": "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
     "shortName": "Business Segments - EBITDA and Adjusted EBITDA (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "inwk:ScheduleOfEarningsBeforeInterestTaxDepreciationAndAmortizationReconciliationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "lang": null,
      "name": "inwk:SharebasedPaymentArrangementExcludingStockAppreciationRightsNoncashExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R96": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:Assets",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437405 - Disclosure - Business Segments - Assets by Segment (Details)",
     "role": "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
     "shortName": "Business Segments - Assets by Segment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_srt_ConsolidationItemsAxis_us-gaap_OperatingSegmentsMember_us-gaap_StatementBusinessSegmentsAxis_inwk_NorthAmericaSegmentMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:Assets",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R97": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentNet",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437406 - Disclosure - Business Segments - Long-lived Assets by Segment (Details)",
     "role": "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
     "shortName": "Business Segments - Long-lived Assets by Segment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FI2019Q4_srt_ConsolidationItemsAxis_us-gaap_OperatingSegmentsMember_us-gaap_StatementBusinessSegmentsAxis_inwk_NorthAmericaSegmentMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R98": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2439402 - Disclosure - Quarterly Selected Financial Information (Unaudited) (Details)",
     "role": "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
     "shortName": "Quarterly Selected Financial Information (Unaudited) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "2",
      "lang": null,
      "name": "us-gaap:EarningsPerShareBasicAndDiluted",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     }
    },
    "R99": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q4QTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2440402 - Disclosure - Revision of Prior Period Financial Statements - Revised Consolidated Statements of Income Amounts (Details)",
     "role": "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails",
     "shortName": "Revision of Prior Period Financial Statements - Revised Consolidated Statements of Income Amounts (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "FD2019Q3QTD",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R9999": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "inwk201910-k.htm",
      "contextRef": "I2018Q1Jan1_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_us-gaap_AccountingStandardsUpdate201409Member",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "",
     "isDefault": "false",
     "longName": "Uncategorized Items - inwk201910-k.htm",
     "role": "http://xbrl.sec.gov/role/uncategorizedFacts",
     "shortName": "Uncategorized Items - inwk201910-k.htm",
     "subGroupType": "",
     "uniqueAnchor": null
    }
   },
   "segmentCount": 87,
   "tag": {
    "country_CN": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "CHINA",
        "terseLabel": "China"
       }
      }
     },
     "localname": "CN",
     "nsuri": "http://xbrl.sec.gov/country/2017-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "country_GB": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "UNITED KINGDOM",
        "terseLabel": "UK"
       }
      }
     },
     "localname": "GB",
     "nsuri": "http://xbrl.sec.gov/country/2017-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "country_US": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "UNITED STATES",
        "terseLabel": "US"
       }
      }
     },
     "localname": "US",
     "nsuri": "http://xbrl.sec.gov/country/2017-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover page."
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentAnnualReport": {
     "auth_ref": [
      "r511"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an annual report.",
        "label": "Document Annual Report",
        "terseLabel": "Document Annual Report"
       }
      }
     },
     "localname": "DocumentAnnualReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r510"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_DocumentsIncorporatedByReferenceTextBlock": {
     "auth_ref": [
      "r508"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Documents incorporated by reference.",
        "label": "Documents Incorporated by Reference [Text Block]",
        "terseLabel": "Documents Incorporated by Reference"
       }
      }
     },
     "localname": "DocumentsIncorporatedByReferenceTextBlock",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "label": "Entity Common Stock, Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Filer Category",
        "terseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r513"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityPublicFloat": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.",
        "label": "Entity Public Float",
        "terseLabel": "Entity Public Float"
       }
      }
     },
     "localname": "EntityPublicFloat",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r512"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_EntityVoluntaryFilers": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.",
        "label": "Entity Voluntary Filers",
        "terseLabel": "Entity Voluntary Filers"
       }
      }
     },
     "localname": "EntityVoluntaryFilers",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityWellKnownSeasonedIssuer": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.",
        "label": "Entity Well-known Seasoned Issuer",
        "terseLabel": "Entity Well-known Seasoned Issuer"
       }
      }
     },
     "localname": "EntityWellKnownSeasonedIssuer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r507"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r509"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Cover"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "inwk_ABLCreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "ABL Credit Agreement [Member]",
        "label": "ABL Credit Agreement [Member]",
        "terseLabel": "ABL Credit Agreement"
       }
      }
     },
     "localname": "ABLCreditAgreementMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_AccountReceivableFinancingTerm": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Account Receivable Financing Term",
        "label": "Account Receivable Financing Term",
        "terseLabel": "Term on financing receivables"
       }
      }
     },
     "localname": "AccountReceivableFinancingTerm",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_AmortizationofImplementationCost": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amortization of Implementation Cost",
        "label": "Amortization of Implementation Cost",
        "terseLabel": "Contract implementation cost amortization"
       }
      }
     },
     "localname": "AmortizationofImplementationCost",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ArthurJ.GallagherCo.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Arthur J. Gallagher &amp; Co. [Member]",
        "label": "Arthur J. Gallagher &amp; Co. [Member]",
        "terseLabel": "Arthur J. Gallagher &amp; Co."
       }
      }
     },
     "localname": "ArthurJ.GallagherCo.Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_AssetsAndLiabilitiesLesseeTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assets And Liabilities, Lessee [Table Text Block]",
        "label": "Assets And Liabilities, Lessee [Table Text Block]",
        "terseLabel": "Assets and Liabilities, Lessee"
       }
      }
     },
     "localname": "AssetsAndLiabilitiesLesseeTableTextBlock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "inwk_BalanceSheetsParentheticalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "",
        "label": "Balance Sheets Parenthetical [Abstract]"
       }
      }
     },
     "localname": "BalanceSheetsParentheticalAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "xbrltype": "stringItemType"
    },
    "inwk_BenefitofTaxExemptiononDilutedEarningsPerShare": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Benefit of Tax Exemption on Diluted Earnings Per Share",
        "label": "Benefit of Tax Exemption on Diluted Earnings Per Share",
        "terseLabel": "Benefit of tax exemptions on diluted earnings per share"
       }
      }
     },
     "localname": "BenefitofTaxExemptiononDilutedEarningsPerShare",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_BuildtoSuitPropertyPlantandEquipmentNet": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Build to Suit Property Plant and Equipment, Net",
        "label": "Build to Suit Property Plant and Equipment, Net",
        "terseLabel": "Build to suit property, plant and equipment, net"
       }
      }
     },
     "localname": "BuildtoSuitPropertyPlantandEquipmentNet",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_CashFlowLesseeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cash Flow, Lessee [Abstract]",
        "label": "Cash Flow, Lessee [Abstract]",
        "terseLabel": "Cash paid for amounts included in the measurement of lease liabilities:"
       }
      }
     },
     "localname": "CashFlowLesseeAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_ChileTaxAuthorityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "",
        "label": "Chile Tax Authority [Member]",
        "terseLabel": "Chile tax authority"
       }
      }
     },
     "localname": "ChileTaxAuthorityMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_CompensationRealignmentandOtherRetentionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Compensation Realignment and Other Retention [Member]",
        "label": "Compensation Realignment and Other Retention [Member]",
        "terseLabel": "Compensation Realignment and Other Retention"
       }
      }
     },
     "localname": "CompensationRealignmentandOtherRetentionMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_ContractwithCustomerLiabilityCashReceived": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contract with Customer, Liability, Cash Received",
        "label": "Contract with Customer, Liability, Cash Received",
        "terseLabel": "Cash received"
       }
      }
     },
     "localname": "ContractwithCustomerLiabilityCashReceived",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognitionDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_CreditAgreementDue2019Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Credit Agreement Due 2019 [Member]",
        "label": "Credit Agreement Due 2019 [Member]",
        "terseLabel": "Credit Agreement Due 2019"
       }
      }
     },
     "localname": "CreditAgreementDue2019Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_CreditAgreementDue2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Credit Agreement Due 2020 [Member]",
        "label": "Credit Agreement Due 2020 [Member]",
        "terseLabel": "Credit Agreement Due 2020"
       }
      }
     },
     "localname": "CreditAgreementDue2020Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_CreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Credit Agreement [Member]",
        "label": "Credit Agreement [Member]",
        "terseLabel": "Credit Agreement"
       }
      }
     },
     "localname": "CreditAgreementMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_CzechKorunaAppreciationImpactonGrossProfit": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 17.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Czech Koruna Appreciation Impact on Gross Profit",
        "label": "Czech Koruna Appreciation Impact on Gross Profit",
        "terseLabel": "Czech currency impact on procurement margin"
       }
      }
     },
     "localname": "CzechKorunaAppreciationImpactonGrossProfit",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_CzechRepublicTaxAuthorityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Czech Republic Tax Authority [Member]",
        "label": "Czech Republic Tax Authority [Member]",
        "terseLabel": "Czech Republic tax authority"
       }
      }
     },
     "localname": "CzechRepublicTaxAuthorityMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_DebtInstrumentConversionRatio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Instrument Conversion Ratio",
        "label": "Debt Instrument Conversion Ratio",
        "terseLabel": "Conversion ratio"
       }
      }
     },
     "localname": "DebtInstrumentConversionRatio",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "inwk_DebtInstrumentConvertedDebtInterestRate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Instrument, Converted Debt, Interest Rate",
        "label": "Debt Instrument, Converted Debt, Interest Rate",
        "terseLabel": "Debt instrument, converted debt, interest rate"
       }
      }
     },
     "localname": "DebtInstrumentConvertedDebtInterestRate",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "inwk_DebtInstrumentCovenantLeverageRatioMaximum": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt Instrument, Covenant, Leverage Ratio, Maximum",
        "label": "Debt Instrument, Covenant, Leverage Ratio, Maximum",
        "terseLabel": "Debt instrument, covenant, leverage ratio, maximum"
       }
      }
     },
     "localname": "DebtInstrumentCovenantLeverageRatioMaximum",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "inwk_DeferredTaxAssetsNetOperatingLossCarryforward": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax assets attributable to net operating loss carryforward.",
        "label": "Deferred Tax Assets Net Operating Loss Carryforward",
        "verboseLabel": "Net operating loss carryforward"
       }
      }
     },
     "localname": "DeferredTaxAssetsNetOperatingLossCarryforward",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_DeferredTaxAssetsOperatingLeaseLiability": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Deferred Tax Assets, Operating Lease, Liability",
        "label": "Deferred Tax Assets, Operating Lease, Liability",
        "terseLabel": "ASC 842 lease liability"
       }
      }
     },
     "localname": "DeferredTaxAssetsOperatingLeaseLiability",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_DeferredTaxLiabilitiesFixedAssets": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to fixed assets.",
        "label": "Deferred Tax Liabilities Fixed Assets",
        "negatedLabel": "Fixed assets"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesFixedAssets",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_DeferredTaxLiabilitiesNonCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "",
        "label": "Deferred Tax Liabilities Non current [Abstract]",
        "verboseLabel": "Deferred tax liabilities:"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesNonCurrentAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_DeferredTaxLiabilitiesPrepaidExpensesNoncurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Deferred Tax Liabilities, Prepaid Expenses, Noncurrent",
        "label": "Deferred Tax Liabilities, Prepaid Expenses, Noncurrent",
        "negatedTerseLabel": "Prepaid &amp; other expenses"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesPrepaidExpensesNoncurrent",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_DefinedContributionPlanRequiredPeriodofService": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Defined Contribution Plan, Required Period of Service",
        "label": "Defined Contribution Plan, Required Period of Service",
        "terseLabel": "Required period of service"
       }
      }
     },
     "localname": "DefinedContributionPlanRequiredPeriodofService",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BenefitPlansDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_DefrredTaxAssetsStockOptions": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax assets attributable to noncurrent stock options.",
        "label": "Defrred Tax Assets Stock Options",
        "verboseLabel": "Deductible stock-based compensation"
       }
      }
     },
     "localname": "DefrredTaxAssetsStockOptions",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_EarningsBeforeInterestTaxDepreciationAndAmortization": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the earnings before interest, tax, depreciation and amortization.",
        "label": "Earnings Before Interest Tax Depreciation and Amortization",
        "terseLabel": "Adjusted EBITDA"
       }
      }
     },
     "localname": "EarningsBeforeInterestTaxDepreciationAndAmortization",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_EffectiveIncomeTaxRateReconciliationTaxReformBEAT": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 13.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Effective Income Tax Rate Reconciliation, Tax Reform BEAT",
        "label": "Effective Income Tax Rate Reconciliation, Tax Reform BEAT",
        "terseLabel": "Tax reform BEAT"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationTaxReformBEAT",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_EffectiveIncomeTaxRateReconciliationTaxReformGlobalIntangibleLowtaxedIncome": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 12.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Effective Income Tax Rate Reconciliation, Tax Reform Global Intangible Low-taxed Income",
        "label": "Effective Income Tax Rate Reconciliation, Tax Reform Global Intangible Low-taxed Income",
        "terseLabel": "Tax reform global intangible low-taxed income"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationTaxReformGlobalIntangibleLowtaxedIncome",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_EmbeddedDerivativeIssuanceOfDebt": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Embedded Derivative, Issuance Of Debt",
        "label": "Embedded Derivative, Issuance Of Debt",
        "terseLabel": "Issuance of associated debt (July 16, 2019)"
       }
      }
     },
     "localname": "EmbeddedDerivativeIssuanceOfDebt",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_EmploymentArbitrationClaimMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Employment Arbitration Claim [Member]",
        "label": "Employment Arbitration Claim [Member]",
        "terseLabel": "Employment Arbitration Claim"
       }
      }
     },
     "localname": "EmploymentArbitrationClaimMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_EnovaInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Enova Inc. [Member]",
        "label": "Enova Inc. [Member]",
        "terseLabel": "Enova Inc."
       }
      }
     },
     "localname": "EnovaInc.Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_EuropeMiddleEastandAfricaSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Europe, Middle East, and Africa Segment [Member]",
        "label": "Europe, Middle East, and Africa Segment [Member]",
        "terseLabel": "EMEA"
       }
      }
     },
     "localname": "EuropeMiddleEastandAfricaSegmentMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_ExecutiveSuccessionSearchCosts": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Executive Succession Search Costs",
        "label": "Executive Succession Search Costs",
        "negatedTerseLabel": "Executive search fees"
       }
      }
     },
     "localname": "ExecutiveSuccessionSearchCosts",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Finance Lease, Assets And Liabilities, Lessee [Abstract]",
        "label": "Finance Lease, Assets And Liabilities, Lessee [Abstract]",
        "terseLabel": "Finance leases:"
       }
      }
     },
     "localname": "FinanceLeaseAssetsAndLiabilitiesLesseeAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_FinanceLeaseCost": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Finance Lease, Cost",
        "label": "Finance Lease, Cost",
        "totalLabel": "Total finance lease cost"
       }
      }
     },
     "localname": "FinanceLeaseCost",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_FinanceLeaseRightofUseAssetAccumulatedDepreciation": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseRightOfUseAsset",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Finance Lease, Right-of-Use Asset, Accumulated Depreciation",
        "label": "Finance Lease, Right-of-Use Asset, Accumulated Depreciation",
        "negatedTerseLabel": "Less: Accumulated amortization"
       }
      }
     },
     "localname": "FinanceLeaseRightofUseAssetAccumulatedDepreciation",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_FinanceLeaseRightofUseAssetGross": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseRightOfUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Finance Lease, Right-of-Use Asset, Gross",
        "label": "Finance Lease, Right-of-Use Asset, Gross",
        "terseLabel": "Right of use assets, cost"
       }
      }
     },
     "localname": "FinanceLeaseRightofUseAssetGross",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_FinancingObligationNoncurrent": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing Obligation, Noncurrent",
        "label": "Financing Obligation, Noncurrent",
        "terseLabel": "Financing obligation, noncurrent"
       }
      }
     },
     "localname": "FinancingObligationNoncurrent",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_GermanyTaxAuthorityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Germany Tax Authority [Member]",
        "label": "Germany Tax Authority [Member]",
        "terseLabel": "Germany tax authority"
       }
      }
     },
     "localname": "GermanyTaxAuthorityMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_GrantOfIncomeTaxExemptionPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grant Of Income Tax Exemption Period",
        "label": "Grant Of Income Tax Exemption Period",
        "terseLabel": "Grant of income tax exemption period"
       }
      }
     },
     "localname": "GrantOfIncomeTaxExemptionPeriod",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_IncomeTaxReconciliationEffectOfNonFederalOperations": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to effect of non US operations.",
        "label": "Income Tax Reconciliation Effect Of Non Federal Operations",
        "negatedLabel": "Effect of non-US operations"
       }
      }
     },
     "localname": "IncomeTaxReconciliationEffectOfNonFederalOperations",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_IncomeTaxReconciliationNontaxableContingentLiabilityAndGoodwillImpairment": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to nontaxable contingent liability fair value changes and goodwill impairment during the period.",
        "label": "Income Tax Reconciliation Nontaxable Contingent Liability And Goodwill Impairment",
        "verboseLabel": "Nontaxable contingent liability fair value changes and goodwill impairment"
       }
      }
     },
     "localname": "IncomeTaxReconciliationNontaxableContingentLiabilityAndGoodwillImpairment",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_IncomeTaxReconciliationTaxCreditsResearchAndDevelopment": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to research and development tax credits generated or utilized under enacted tax laws during the period.",
        "label": "Income Tax Reconciliation Tax Credits Research And Development",
        "negatedLabel": "Research and development credit"
       }
      }
     },
     "localname": "IncomeTaxReconciliationTaxCreditsResearchAndDevelopment",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_IncreaseDecreaseinAccountsReceivableandUnbilledReceivables": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Also includes the increase (decrease) during the reporting period for revenue recognized for shipments made to customers for which the related billings have not occurred.",
        "label": "Increase (Decrease) in Accounts Receivable and Unbilled Receivables",
        "negatedLabel": "Accounts receivable and unbilled revenue"
       }
      }
     },
     "localname": "IncreaseDecreaseinAccountsReceivableandUnbilledReceivables",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_InitialWarrantMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Initial Warrant [Member]",
        "label": "Initial Warrant [Member]",
        "terseLabel": "Initial Warrant"
       }
      }
     },
     "localname": "InitialWarrantMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_InternalUseSoftwareMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "",
        "label": "Internal Use Software [Member]",
        "terseLabel": "Internal Use Software"
       }
      }
     },
     "localname": "InternalUseSoftwareMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_LatinAmericaSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Latin America Segment [Member]",
        "label": "Latin America Segment [Member]",
        "terseLabel": "LATAM"
       }
      }
     },
     "localname": "LatinAmericaSegmentMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_LeaseLiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Liabilities [Abstract]",
        "label": "Lease, Liabilities [Abstract]",
        "terseLabel": "Lease liabilities:"
       }
      }
     },
     "localname": "LeaseLiabilitiesAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_LeaseLiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Liabilities, Current [Abstract]",
        "label": "Lease, Liabilities, Current [Abstract]",
        "terseLabel": "Current:"
       }
      }
     },
     "localname": "LeaseLiabilitiesCurrentAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_LeaseLiabilityNoncurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Liability, Noncurrent [Abstract]",
        "label": "Lease, Liability, Noncurrent [Abstract]",
        "terseLabel": "Non-current:"
       }
      }
     },
     "localname": "LeaseLiabilityNoncurrentAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_LeasePayments": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Payments",
        "label": "Lease, Payments",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "LeasePayments",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LegacyERPSystemMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Legacy ERP System [Member]",
        "label": "Legacy ERP System [Member]",
        "terseLabel": "Legacy ERP system"
       }
      }
     },
     "localname": "LegacyERPSystemMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_LesseeFinanceLeaseCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessee, Finance Lease, Cost [Abstract]",
        "label": "Lessee, Finance Lease, Cost [Abstract]",
        "terseLabel": "Finance lease cost:"
       }
      }
     },
     "localname": "LesseeFinanceLeaseCostAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_LesseeLeaseTermOfContract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessee, Lease, Term Of Contract",
        "label": "Lessee, Lease, Term Of Contract",
        "terseLabel": "Lessee, lease, term of contract"
       }
      }
     },
     "localname": "LesseeLeaseTermOfContract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_LineOfCreditFacilityIncreasedCurrentBorrowingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increased current borrowing capacity under the credit facility.",
        "label": "Line of Credit Facility Increased Current Borrowing Capacity",
        "terseLabel": "Increased current borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityIncreasedCurrentBorrowingCapacity",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LineOfCreditFacilityUnusedCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The unused availability under the line of credit facility.",
        "label": "Line of Credit Facility Unused Capacity",
        "terseLabel": "Unused capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityUnusedCapacity",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LineofCreditFacilityAdditionalIncreasetoBorrowingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line of Credit Facility, Additional Increase to Borrowing Capacity",
        "label": "Line of Credit Facility, Additional Increase to Borrowing Capacity",
        "terseLabel": "Additional increase to borrowing capacity"
       }
      }
     },
     "localname": "LineofCreditFacilityAdditionalIncreasetoBorrowingCapacity",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LineofCreditOriginalIssueDiscount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line of Credit, Original Issue Discount",
        "label": "Line of Credit, Original Issue Discount",
        "negatedLabel": "Less: Original Issue Discount",
        "terseLabel": "Original issue discount"
       }
      }
     },
     "localname": "LineofCreditOriginalIssueDiscount",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LongtermLineofCreditBeforeDiscountsandDerivativeLiabilityNoncurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LineOfCredit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Long-term Line of Credit Before Discounts and Derivative Liability, Noncurrent",
        "label": "Long-term Line of Credit Before Discounts and Derivative Liability, Noncurrent",
        "terseLabel": "Long-term portion of Credit Facility"
       }
      }
     },
     "localname": "LongtermLineofCreditBeforeDiscountsandDerivativeLiabilityNoncurrent",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LossContingencyDamagesMaximumContingentConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the amount of maximum damages payable as a contingent consideration.",
        "label": "Loss Contingency Damages Maximum Contingent Consideration",
        "terseLabel": "Maximum consideration"
       }
      }
     },
     "localname": "LossContingencyDamagesMaximumContingentConsideration",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LossContingencyDamagesValueContingentConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the amount of damages paid as a contingent consideration.",
        "label": "Loss Contingency Damages Value Contingent Consideration",
        "terseLabel": "Contingent consideration"
       }
      }
     },
     "localname": "LossContingencyDamagesValueContingentConsideration",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_LossContingencyDamagesValueFixedConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the amount of damages paid as a contingent the amount of damages paid as a contingent consideration.",
        "label": "Loss Contingency Damages Value Fixed Consideration",
        "terseLabel": "Fixed consideration"
       }
      }
     },
     "localname": "LossContingencyDamagesValueFixedConsideration",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_MaximumLeverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum Leverage Ratio",
        "label": "Maximum Leverage Ratio",
        "terseLabel": "Maximum leverage ratio"
       }
      }
     },
     "localname": "MaximumLeverageRatio",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "inwk_MinimumLeverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Minimum Leverage Ratio",
        "label": "Minimum Leverage Ratio",
        "terseLabel": "Minimum leverage ratio"
       }
      }
     },
     "localname": "MinimumLeverageRatio",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "inwk_NetRevenueFromOtherSegments": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of total revenue for the reportable segments, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be \"operating revenue\" for purposes of the taxonomy.",
        "label": "Net Revenue From Other Segments",
        "verboseLabel": "Revenue from other segments"
       }
      }
     },
     "localname": "NetRevenueFromOtherSegments",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_NetRevenueFromThirdParties": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Net revenue from third parties involved by chance or only incidentally in a legal proceeding, agreement, or other transaction, especially one against whom a defendant claims indemnity.",
        "label": "Net Revenue From Third Parties",
        "verboseLabel": "Revenue from third parties"
       }
      }
     },
     "localname": "NetRevenueFromThirdParties",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_NoncashAdjustmentToBuildToSuitLeases": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncash Adjustment To Build To Suit Leases",
        "label": "Noncash Adjustment To Build To Suit Leases",
        "terseLabel": "Buildings - Build to Suit Leases"
       }
      }
     },
     "localname": "NoncashAdjustmentToBuildToSuitLeases",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_NoncashorPartNoncashAcquisitionNoncashFinancialorEquityInstrumentConsiderationValueofSharesRepurchased": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Value of Shares Repurchased",
        "label": "Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Value of Shares Repurchased",
        "terseLabel": "Repurchases of common stock"
       }
      }
     },
     "localname": "NoncashorPartNoncashAcquisitionNoncashFinancialorEquityInstrumentConsiderationValueofSharesRepurchased",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_NorthAmericaSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "North America Segment [Member]",
        "label": "North America Segment [Member]",
        "terseLabel": "North America"
       }
      }
     },
     "localname": "NorthAmericaSegmentMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Lease, Assets And Liabilities, Lessee [Abstract]",
        "label": "Operating Lease, Assets And Liabilities, Lessee [Abstract]",
        "terseLabel": "Operating leases:"
       }
      }
     },
     "localname": "OperatingLeaseAssetsAndLiabilitiesLesseeAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_OperatingLeaseRightofUseAssetDeferredTaxEffect": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Lease, Right-of-Use Asset, Deferred Tax Effect",
        "label": "Operating Lease, Right-of-Use Asset, Deferred Tax Effect",
        "terseLabel": "Operating lease, deferred tax effect"
       }
      }
     },
     "localname": "OperatingLeaseRightofUseAssetDeferredTaxEffect",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingLossCarryForwardLimit": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the amount of operating loss carry forward annual limitation on use.",
        "label": "Operating Loss Carry Forward Limit",
        "terseLabel": "Limitation on operating loss carryforward"
       }
      }
     },
     "localname": "OperatingLossCarryForwardLimit",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingLossCarryfowardsAcquiredInBusinessCombination": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Loss Carryfowards Acquired In Business Combination",
        "label": "Operating Loss Carryfowards Acquired In Business Combination",
        "terseLabel": "Operating loss carryforwards, acquired in business combination"
       }
      }
     },
     "localname": "OperatingLossCarryfowardsAcquiredInBusinessCombination",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingandFinanceLeaseLiability": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating and Finance Lease, Liability",
        "label": "Operating and Finance Lease, Liability",
        "terseLabel": "Lease liabilities, net",
        "totalLabel": "Total lease liabilities"
       }
      }
     },
     "localname": "OperatingandFinanceLeaseLiability",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingandFinanceLeaseLiabilityNoncurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Non current lease including both operating and finance leases",
        "label": "Operating and Finance Lease, Liability, Noncurrent",
        "terseLabel": "Lease liabilities"
       }
      }
     },
     "localname": "OperatingandFinanceLeaseLiabilityNoncurrent",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingandFinanceLeaseRightofUseAsset": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherAssets",
       "weight": 1.0
      },
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating and Finance Lease, Right-of-Use Asset",
        "label": "Operating and Finance Lease, Right-of-Use Asset",
        "terseLabel": "Right of use assets, net",
        "totalLabel": "Total right of use assets, net"
       }
      }
     },
     "localname": "OperatingandFinanceLeaseRightofUseAsset",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_OperatingandFinanceLeaseRightofUseAssetsLiabilitiesNet": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating and Finance Lease, Right-of-Use Assets (Liabilities), Net",
        "label": "Operating and Finance Lease, Right-of-Use Assets (Liabilities), Net",
        "terseLabel": "Lease, right-of-use assets (liabilities), net"
       }
      }
     },
     "localname": "OperatingandFinanceLeaseRightofUseAssetsLiabilitiesNet",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_PrepaymentsforRestructuring": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Prepayments for Restructuring",
        "label": "Prepayments for Restructuring",
        "terseLabel": "Prepayments"
       }
      }
     },
     "localname": "PrepaymentsforRestructuring",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ProfessionalFeesRelatedtoASC606Implementation": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 14.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Professional Fees Related to ASC 606 Implementation",
        "label": "Professional Fees Related to ASC 606 Implementation",
        "negatedTerseLabel": "Professional fees related to ASC 606 implementation"
       }
      }
     },
     "localname": "ProfessionalFeesRelatedtoASC606Implementation",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ProfessionalFeesRelatedtoRestatement": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Professional Fees Related to Restatement",
        "label": "Professional Fees Related to Restatement",
        "negatedTerseLabel": "Professional fees related to control remediation"
       }
      }
     },
     "localname": "ProfessionalFeesRelatedtoRestatement",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_RestructuringPlan2015Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Restructuring Plan, 2015 [Member]",
        "label": "Restructuring Plan, 2015 [Member]",
        "terseLabel": "Restructuring Plan, 2015"
       }
      }
     },
     "localname": "RestructuringPlan2015Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_RestructuringPlan2018Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Restructuring Plan, 2018 [Member]",
        "label": "Restructuring Plan, 2018 [Member]",
        "terseLabel": "Restructuring Plan, 2018"
       }
      }
     },
     "localname": "RestructuringPlan2018Member",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_RestructuringandRelatedCostExpectedCostNoncash": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Restructuring and Related Cost, Expected Cost, Noncash",
        "label": "Restructuring and Related Cost, Expected Cost, Noncash",
        "terseLabel": "Non-cash settlements / adjustments"
       }
      }
     },
     "localname": "RestructuringandRelatedCostExpectedCostNoncash",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_RestructuringandRelatedCostExtensionPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Restructuring and Related Cost, Extension Period",
        "label": "Restructuring and Related Cost, Extension Period",
        "terseLabel": "Restructuring and related cost, extension period"
       }
      }
     },
     "localname": "RestructuringandRelatedCostExtensionPeriod",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_RetailInventoryObsolete": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 13.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Retail Inventory, Obsolete",
        "label": "Retail Inventory, Obsolete",
        "negatedTerseLabel": "Obsolete retail inventory"
       }
      }
     },
     "localname": "RetailInventoryObsolete",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_RevisionofPriorPeriodFinancialStatementsPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Revision of Prior Period Financial Statements [Policy Text Block]",
        "label": "Revision of Prior Period Financial Statements [Policy Text Block]",
        "terseLabel": "Revision of Prior Period Financial Statements"
       }
      }
     },
     "localname": "RevisionofPriorPeriodFinancialStatementsPolicyTextBlock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "inwk_ScheduleOfEarningsBeforeInterestTaxDepreciationAndAmortizationReconciliationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Table represents the earnings before interest tax depreciation and amortization reconciliation during the period.",
        "label": "Schedule Of Earnings Before Interest Tax Depreciation and Amortization Reconciliation [Table Text Block]",
        "verboseLabel": "Schedule of EBITDA Reconciliation"
       }
      }
     },
     "localname": "ScheduleOfEarningsBeforeInterestTaxDepreciationAndAmortizationReconciliationTableTextBlock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "inwk_ScheduleofWarrantLiabilitiesatFairValueTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of Warrant Liabilities at Fair Value [Table Text Block]",
        "label": "Schedule of Warrant Liabilities at Fair Value [Table Text Block]",
        "terseLabel": "Schedule of Warrant Liabilities at Fair Value"
       }
      }
     },
     "localname": "ScheduleofWarrantLiabilitiesatFairValueTableTextBlock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "inwk_SegmentConcentrationRiskMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Segment Concentration Risk [Member]",
        "label": "Segment Concentration Risk [Member]",
        "terseLabel": "Segment Concentration Risk"
       }
      }
     },
     "localname": "SegmentConcentrationRiskMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_SeniorLeadershipTransitionandOtherEmployeeRelatedCosts": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 12.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Senior Leadership Transition and Other Employee-Related Costs",
        "label": "Senior Leadership Transition and Other Employee-Related Costs",
        "negatedTerseLabel": "Senior leadership transition and other employee-related costs"
       }
      }
     },
     "localname": "SeniorLeadershipTransitionandOtherEmployeeRelatedCosts",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableAggregateIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Aggregate Intrinsic Value",
        "label": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Aggregate Intrinsic Value",
        "terseLabel": "Vested and exercisable"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableAggregateIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Number",
        "label": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Number",
        "terseLabel": "Vested and exercisable (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableNumber",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "inwk_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Weighted Average Exercise Price",
        "label": "Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Vested and Exercisable, Weighted Average Exercise Price",
        "terseLabel": "Vested and exercisable (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVestedandExercisableWeightedAverageExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodAggregateIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The average of the accumulated differences between the fair values on underlying shares and exercises prices to acquire such shares as of the grant date on options that were forfeited.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Aggregate Intrinsic Value",
        "terseLabel": "Forfeited"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodAggregateIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options granted outstanding.",
        "label": "Share based Compensation Arrangement By Share based Payment Award Options Grants In Period Intrinsic Value",
        "terseLabel": "Granted"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisesinPeriodAggregateIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period, Aggregate Intrinsic Value",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period, Aggregate Intrinsic Value",
        "terseLabel": "Exercised"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsExercisesinPeriodAggregateIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsForfeituresandExpirationsinPeriodAggregateIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures and Expirations in Period, Aggregate Intrinsic Value",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures and Expirations in Period, Aggregate Intrinsic Value",
        "terseLabel": "Forfeited/Expired"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsForfeituresandExpirationsinPeriodAggregateIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodAggregateIntrinsicValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Aggregate Intrinsic Value",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Aggregate Intrinsic Value",
        "terseLabel": "Granted"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodAggregateIntrinsicValue",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsExercisesinPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercises in Period, Weighted Average Exercise Price",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercises in Period, Weighted Average Exercise Price",
        "terseLabel": "Exercised (in USD per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsExercisesinPeriodWeightedAverageExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsForfeituresandExpirationsinPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations in Period, Weighted Average Exercise Price",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations in Period, Weighted Average Exercise Price",
        "terseLabel": "Forfeited/Expired (in USD per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsForfeituresandExpirationsinPeriodWeightedAverageExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantsinPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Grants in Period, Weighted Average Exercise Price",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Grants in Period, Weighted Average Exercise Price",
        "terseLabel": "Granted (in USD per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantsinPeriodWeightedAverageExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Exercise Price",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Exercise Price",
        "periodEndLabel": "Ending balance (in USD per share)",
        "periodStartLabel": "Beginning balance (in USD per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_SharebasedCompensationArrangementbySharebasedPaymentAwardTargetVestingPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Target Vesting Percentage",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Target Vesting Percentage",
        "terseLabel": "Target vesting percentage"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardTargetVestingPercentage",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "inwk_SharebasedPaymentArrangementExcludingStockAppreciationRightsNoncashExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Payment Arrangement, Excluding Stock Appreciation Rights, Noncash Expense",
        "label": "Share-based Payment Arrangement, Excluding Stock Appreciation Rights, Noncash Expense",
        "negatedLabel": "Stock-based compensation - equity classified awards"
       }
      }
     },
     "localname": "SharebasedPaymentArrangementExcludingStockAppreciationRightsNoncashExpense",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_SoftwareIncludingInternalUseSoftwareMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "",
        "label": "Software Including Internal Use Software [Member]",
        "terseLabel": "Software, including internal-use software"
       }
      }
     },
     "localname": "SoftwareIncludingInternalUseSoftwareMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_StockAppreciationRightMarketToMarket": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock Appreciation Right Market-To-Market",
        "label": "Stock Appreciation Right Market-To-Market",
        "negatedTerseLabel": "Stock-based compensation - SARs market-to-market"
       }
      }
     },
     "localname": "StockAppreciationRightMarketToMarket",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_StockIssuedDuringPeriodValueContingentConsiderationfromAcquisitions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock Issued During Period, Value, Contingent Consideration from Acquisitions",
        "label": "Stock Issued During Period, Value, Contingent Consideration from Acquisitions",
        "terseLabel": "Shares issued as payment of contingent consideration"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueContingentConsiderationfromAcquisitions",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_StockRepurchaseProgramExtensionPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock Repurchase Program, Extension Period",
        "label": "Stock Repurchase Program, Extension Period",
        "terseLabel": "Stock repurchase program, extension period"
       }
      }
     },
     "localname": "StockRepurchaseProgramExtensionPeriod",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_TermLoanCreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Term Loan Credit Agreement [Member]",
        "label": "Term Loan Credit Agreement [Member]",
        "terseLabel": "Term Loan Credit Agreement"
       }
      }
     },
     "localname": "TermLoanCreditAgreementMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_TermLoanFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Term Loan Facility [Member]",
        "label": "Term Loan Facility [Member]",
        "terseLabel": "Term Loan Facility",
        "verboseLabel": "Term loan facility"
       }
      }
     },
     "localname": "TermLoanFacilityMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_TwoThousandandSixStockIncentivePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "2006 Stock Incentive Plan",
        "label": "Two Thousand and Six Stock Incentive Plan [Member]",
        "terseLabel": "2006 Stock Incentive Plan"
       }
      }
     },
     "localname": "TwoThousandandSixStockIncentivePlanMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "inwk_UnamortizedDiscountandDeferredFinancingCosts": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unamortized Discount and Deferred Financing Costs",
        "label": "Unamortized Discount and Deferred Financing Costs",
        "terseLabel": "Unamortized discount and deferred financing costs"
       }
      }
     },
     "localname": "UnamortizedDiscountandDeferredFinancingCosts",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_UnbilledRevenueandAccruedAccountsPayablePolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unbilled Revenue and Accrued Accounts Payable [Policy Text Block]",
        "label": "Unbilled Revenue and Accrued Accounts Payable [Policy Text Block]",
        "terseLabel": "Unbilled Revenue and Accrued Accounts Payable"
       }
      }
     },
     "localname": "UnbilledRevenueandAccruedAccountsPayablePolicyTextBlock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "inwk_UncertainTaxPositionsReserveReversal": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Uncertain Tax Positions, Reserve, Reversal",
        "label": "Uncertain Tax Positions, Reserve, Reversal",
        "terseLabel": "Uncertain tax positions, reversal"
       }
      }
     },
     "localname": "UncertainTaxPositionsReserveReversal",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_WarrantExercisePercentOfCommonStock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant, Exercise Percent Of Common Stock",
        "label": "Warrant, Exercise Percent Of Common Stock",
        "terseLabel": "Warrant, exercise price of common stock"
       }
      }
     },
     "localname": "WarrantExercisePercentOfCommonStock",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "inwk_WarrantLiabilityExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Exercise Price",
        "label": "Warrant Liability, Exercise Price",
        "terseLabel": "Exercise price (in USD per share)"
       }
      }
     },
     "localname": "WarrantLiabilityExercisePrice",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "inwk_WarrantLiabilityExpirationPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Expiration Period",
        "label": "Warrant Liability, Expiration Period",
        "terseLabel": "Time until expiration (years)"
       }
      }
     },
     "localname": "WarrantLiabilityExpirationPeriod",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_WarrantLiabilityFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_FinancialLiabilitiesFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Fair Value Disclosure",
        "label": "Warrant Liability, Fair Value Disclosure",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Warrant",
        "verboseLabel": "Initial Warrant Liability"
       }
      }
     },
     "localname": "WarrantLiabilityFairValueDisclosure",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_WarrantLiabilityGainLossonWarrants": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Gain (Loss) on Warrants",
        "label": "Warrant Liability, Gain (Loss) on Warrants",
        "negatedTerseLabel": "Change in fair value of warrant",
        "terseLabel": "Change in fair value"
       }
      }
     },
     "localname": "WarrantLiabilityGainLossonWarrants",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_WarrantLiabilityIssuanceOfWarrant": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Issuance Of Warrant",
        "label": "Warrant Liability, Issuance Of Warrant",
        "terseLabel": "Issuance of initial warrant (July 16, 2019)"
       }
      }
     },
     "localname": "WarrantLiabilityIssuanceOfWarrant",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "inwk_WarrantLiabilityMeasurementInput": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrant Liability, Measurement Input",
        "label": "Warrant Liability, Measurement Input",
        "terseLabel": "Warrant liability, measurement input"
       }
      }
     },
     "localname": "WarrantLiabilityMeasurementInput",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "inwk_WarrantsAndRightsOutstandingExercisePeriodAfterTriggeringEvent": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Warrants And Rights Outstanding, Exercise Period After Triggering Event",
        "label": "Warrants And Rights Outstanding, Exercise Period After Triggering Event",
        "terseLabel": "Warrants and rights outstanding, exercise period after triggering event"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingExercisePeriodAfterTriggeringEvent",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "inwk_WeightedAverageDiscountRateAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted Average Discount Rate [Abstract]",
        "label": "Weighted Average Discount Rate [Abstract]",
        "terseLabel": "Weighted-average discount rate"
       }
      }
     },
     "localname": "WeightedAverageDiscountRateAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_WeightedAverageNumberOfSharesOutstandingBeforeAdjustments": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted Average Number Of Shares Outstanding, Before Adjustments",
        "label": "Weighted Average Number Of Shares Outstanding, Before Adjustments",
        "terseLabel": "Weighted average number of shares outstanding (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBeforeAdjustments",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "inwk_WeightedAverageRemainingLeaseTermAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted Average Remaining Lease Term [Abstract]",
        "label": "Weighted Average Remaining Lease Term [Abstract]",
        "terseLabel": "Weighted-average remaining lease term (years)"
       }
      }
     },
     "localname": "WeightedAverageRemainingLeaseTermAbstract",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "inwk_WrongfulTerminationLawsuitProductionsGraphicsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Wrongful Termination Lawsuit - Productions Graphics [Member]",
        "label": "Wrongful Termination Lawsuit - Productions Graphics [Member]",
        "terseLabel": "Wrongful Termination Lawsuit - Productions Graphics"
       }
      }
     },
     "localname": "WrongfulTerminationLawsuitProductionsGraphicsMember",
     "nsuri": "http://www.inwk.com/20191231",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_CondensedFinancialStatementsCaptionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Condensed Financial Statements, Captions [Line Items]",
        "terseLabel": "Condensed Financial Statements, Captions [Line Items]"
       }
      }
     },
     "localname": "CondensedFinancialStatementsCaptionsLineItems",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidationItemsAxis": {
     "auth_ref": [
      "r159",
      "r167"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidation Items [Axis]",
        "terseLabel": "Consolidation Items [Axis]"
       }
      }
     },
     "localname": "ConsolidationItemsAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidationItemsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Consolidation Items [Domain]",
        "terseLabel": "Consolidation Items [Domain]"
       }
      }
     },
     "localname": "ConsolidationItemsDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_LitigationCaseAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Litigation Case [Axis]",
        "terseLabel": "Litigation Case [Axis]"
       }
      }
     },
     "localname": "LitigationCaseAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_LitigationCaseTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Litigation Case [Domain]",
        "terseLabel": "Litigation Case [Domain]"
       }
      }
     },
     "localname": "LitigationCaseTypeDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RestatementAdjustmentMember": {
     "auth_ref": [
      "r126",
      "r128",
      "r129",
      "r130"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Restatement Adjustment [Member]",
        "terseLabel": "Adjustments"
       }
      }
     },
     "localname": "RestatementAdjustmentMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RestatementAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Restatement [Axis]",
        "terseLabel": "Restatement [Axis]"
       }
      }
     },
     "localname": "RestatementAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RestatementDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Restatement [Domain]",
        "terseLabel": "Restatement [Domain]"
       }
      }
     },
     "localname": "RestatementDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioForecastMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Forecast [Member]",
        "terseLabel": "Forecast"
       }
      }
     },
     "localname": "ScenarioForecastMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioPreviouslyReportedMember": {
     "auth_ref": [
      "r128",
      "r129",
      "r130"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Previously Reported [Member]",
        "terseLabel": "As Reported"
       }
      }
     },
     "localname": "ScenarioPreviouslyReportedMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioUnspecifiedDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Scenario [Domain]",
        "terseLabel": "Scenario [Domain]"
       }
      }
     },
     "localname": "ScenarioUnspecifiedDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScheduleOfCondensedFinancialStatementsTable": {
     "auth_ref": [
      "r122",
      "r394"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Condensed Financial Statements [Table]",
        "terseLabel": "Condensed Financial Statements [Table]"
       }
      }
     },
     "localname": "ScheduleOfCondensedFinancialStatementsTable",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_SegmentGeographicalDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Geographical [Domain]",
        "terseLabel": "Geographical [Domain]"
       }
      }
     },
     "localname": "SegmentGeographicalDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_StatementGeographicalAxis": {
     "auth_ref": [
      "r168",
      "r276",
      "r279",
      "r498",
      "r504",
      "r506"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Geographical [Axis]",
        "terseLabel": "Geographical [Axis]"
       }
      }
     },
     "localname": "StatementGeographicalAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_StatementScenarioAxis": {
     "auth_ref": [
      "r246",
      "r458"
     ],
     "lang": {
      "en-US": {
       "role": {
        "label": "Scenario [Axis]",
        "terseLabel": "Scenario [Axis]"
       }
      }
     },
     "localname": "StatementScenarioAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingChangesAndErrorCorrectionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accounting Changes and Error Corrections [Abstract]"
       }
      }
     },
     "localname": "AccountingChangesAndErrorCorrectionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingChangesAndErrorCorrectionsTextBlock": {
     "auth_ref": [
      "r131"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for reporting accounting changes and error corrections. It includes the conveyance of information necessary for a user of the Company's financial information to understand all aspects and required disclosure information concerning all changes and error corrections reported in the Company's financial statements for the period.",
        "label": "Accounting Changes and Error Corrections [Text Block]",
        "terseLabel": "Revision of Prior Period Financial Statements"
       }
      }
     },
     "localname": "AccountingChangesAndErrorCorrectionsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AccountingPoliciesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accounting Policies [Abstract]"
       }
      }
     },
     "localname": "AccountingPoliciesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingStandardsUpdate201409Member": {
     "auth_ref": [
      "r280"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2014-09 Revenue from Contracts with Customers (Topic 606).",
        "label": "Accounting Standards Update 2014-09 [Member]",
        "terseLabel": "ASU 2014-09"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201409Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingStandardsUpdate201602Member": {
     "auth_ref": [
      "r428"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).",
        "label": "Accounting Standards Update 2016-02 [Member]",
        "terseLabel": "ASU 2016-02"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201602Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingStandardsUpdate201609Member": {
     "auth_ref": [
      "r327",
      "r328",
      "r329",
      "r330",
      "r331",
      "r332",
      "r333",
      "r334",
      "r335",
      "r336"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.",
        "label": "Accounting Standards Update 2016-09 [Member]",
        "terseLabel": "ASU 2016-09"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201609Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingStandardsUpdate201613Member": {
     "auth_ref": [
      "r182"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-13 Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.",
        "label": "Accounting Standards Update 2016-13 [Member]",
        "terseLabel": "ASU 2016-13"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201613Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingStandardsUpdate201616Member": {
     "auth_ref": [
      "r379",
      "r380"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-16 Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory.",
        "label": "Accounting Standards Update 2016-16 [Member]",
        "terseLabel": "ASU 2016-16"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201616Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r38"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accounts Payable, Current",
        "verboseLabel": "Accounts payable"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock": {
     "auth_ref": [
      "r189"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of allowance for credit loss on accounts receivable.",
        "label": "Accounts Receivable, Allowance for Credit Loss [Table Text Block]",
        "terseLabel": "Schedule of Allowance for Doubtful Accounts"
       }
      }
     },
     "localname": "AccountsReceivableAllowanceForCreditLossTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AccountsReceivableNetCurrent": {
     "auth_ref": [
      "r4",
      "r26",
      "r170",
      "r171",
      "r277"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "verboseLabel": "Accounts receivable, net of allowance for doubtful accounts of $3,830 and $4,880, respectively"
       }
      }
     },
     "localname": "AccountsReceivableNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r41"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrued Liabilities, Current",
        "verboseLabel": "Accrued expenses"
       }
      }
     },
     "localname": "AccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": {
     "auth_ref": [
      "r36",
      "r225"
     ],
     "calculation": {
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
        "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment",
        "negatedLabel": "Less: Accumulated depreciation"
       }
      }
     },
     "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r56",
      "r58",
      "r59"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "terseLabel": "Accumulated other comprehensive loss"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r55",
      "r59",
      "r60",
      "r396"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Attributable to Parent [Member]",
        "terseLabel": "Accumulated Other Comprehensive Loss"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Acquired Finite-Lived Intangible Assets [Line Items]",
        "terseLabel": "Acquired Finite-Lived Intangible Assets [Line Items]"
       }
      }
     },
     "localname": "AcquiredFiniteLivedIntangibleAssetsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife": {
     "auth_ref": [
      "r210"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Acquired Finite-lived Intangible Assets, Weighted Average Useful Life",
        "terseLabel": "Weighted Average Life in Years",
        "verboseLabel": "Weighted average life of intangible assets"
       }
      }
     },
     "localname": "AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r27"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "label": "Additional Paid in Capital, Common Stock",
        "verboseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
        "label": "Additional Paid-in Capital [Member]",
        "terseLabel": "Additional Paid-in-Capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": {
     "auth_ref": [
      "r125"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by new accounting pronouncement.",
        "label": "Adjustments for New Accounting Pronouncements [Axis]",
        "terseLabel": "Adjustments for New Accounting Pronouncements [Axis]"
       }
      }
     },
     "localname": "AdjustmentsForNewAccountingPronouncementsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r291",
      "r293",
      "r339",
      "r340"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition",
        "verboseLabel": "Stock based compensation expense"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation": {
     "auth_ref": [
      "r262",
      "r267",
      "r341"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.",
        "label": "Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation",
        "terseLabel": "Income tax benefit from share-based compensation"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Adjustments to reconcile net (loss) income to net cash provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdvertisingCostsPolicyTextBlock": {
     "auth_ref": [
      "r343"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for advertising cost.",
        "label": "Advertising Cost [Policy Text Block]",
        "terseLabel": "Advertising"
       }
      }
     },
     "localname": "AdvertisingCostsPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AdvertisingExpense": {
     "auth_ref": [
      "r344"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.",
        "label": "Advertising Expense",
        "terseLabel": "Advertising expense"
       }
      }
     },
     "localname": "AdvertisingExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllocatedShareBasedCompensationExpense": {
     "auth_ref": [
      "r293",
      "r323",
      "r338"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "Share-based Payment Arrangement, Expense",
        "terseLabel": "Share-based compensation expense"
       }
      }
     },
     "localname": "AllocatedShareBasedCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivable": {
     "auth_ref": [
      "r176",
      "r183",
      "r184",
      "r188"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss on accounts receivable.",
        "label": "Accounts Receivable, Allowance for Credit Loss",
        "periodEndLabel": "Balance at end of period",
        "periodStartLabel": "Balance at beginning of period"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": {
     "auth_ref": [
      "r32",
      "r176",
      "r183"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.",
        "label": "Accounts Receivable, Allowance for Credit Loss, Current",
        "verboseLabel": "Accounts receivable, allowance for doubtful accounts"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries": {
     "auth_ref": [
      "r187"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in allowance for credit loss on accounts receivable, from recovery.",
        "label": "Accounts Receivable, Allowance for Credit Loss, Recovery",
        "terseLabel": "Uncollectible accounts written off, net of recoveries"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableRecoveries",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]",
        "terseLabel": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableRollforward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs": {
     "auth_ref": [
      "r186"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of direct write-downs of accounts receivable charged against the allowance.",
        "label": "Accounts Receivable, Allowance for Credit Loss, Writeoff",
        "negatedTerseLabel": "Uncollectible accounts written off, net of recoveries"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableWriteOffs",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfDebtDiscountPremium": {
     "auth_ref": [
      "r80",
      "r101",
      "r421"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.",
        "label": "Amortization of Debt Discount (Premium)",
        "terseLabel": "Amortization of debt discount"
       }
      }
     },
     "localname": "AmortizationOfDebtDiscountPremium",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfFinancingCosts": {
     "auth_ref": [
      "r73",
      "r101",
      "r423"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense attributable to debt issuance costs.",
        "label": "Amortization of Debt Issuance Costs",
        "terseLabel": "Amortization of deferred financing costs"
       }
      }
     },
     "localname": "AmortizationOfFinancingCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfIntangibleAssets": {
     "auth_ref": [
      "r101",
      "r208",
      "r216"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.",
        "label": "Amortization of Intangible Assets",
        "terseLabel": "Amortization of intangible assets"
       }
      }
     },
     "localname": "AmortizationOfIntangibleAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "verboseLabel": "Shares excluded from EPS (in shares)"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShareNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r164",
      "r476",
      "r490"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "terseLabel": "Total assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets [Abstract]",
        "verboseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r7",
      "r9",
      "r51"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Current",
        "terseLabel": "Total current assets",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets, Current [Abstract]",
        "verboseLabel": "Current assets:"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r294",
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type [Axis]"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BaseRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Minimum rate investor will accept.",
        "label": "Base Rate [Member]",
        "terseLabel": "Base Rate"
       }
      }
     },
     "localname": "BaseRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "terseLabel": "Basis of Presentation and Consolidation"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BridgeLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financing which is expected to be replaced by a medium to long-term loan. The loan \"bridges\" the gap in time when otherwise no financing would be in place.",
        "label": "Bridge Loan [Member]",
        "terseLabel": "Bridge Loan"
       }
      }
     },
     "localname": "BridgeLoanMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BuildingMember": {
     "auth_ref": [
      "r224"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Facility held for productive use including, but not limited to, office, production, storage and distribution facilities.",
        "label": "Building [Member]",
        "terseLabel": "Buildings"
       }
      }
     },
     "localname": "BuildingMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1": {
     "auth_ref": [
      "r100",
      "r393"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 16.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.",
        "label": "Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability",
        "negatedTerseLabel": "Change in fair value of contingent consideration",
        "terseLabel": "Change in fair value of contingent consideration liability",
        "verboseLabel": "Change in fair value of contingent consideration"
       }
      }
     },
     "localname": "BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessDevelopment": {
     "auth_ref": [
      "r72"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 15.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Business development involves the development of products and services, their delivery, design and their implementation. Business development includes a number of techniques designed to grow an economic enterprise. Such techniques include, but are not limited to, assessments of marketing opportunities and target markets, intelligence gathering on customers and competitors, generating leads for possible sales, follow-up sales activity, formal proposal writing and business model design. Business development involves evaluating a business and then realizing its full potential, using such tools as marketing, sales, information management and customer service.",
        "label": "Business Development",
        "negatedTerseLabel": "Business development realignment"
       }
      }
     },
     "localname": "BusinessDevelopment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedContractCostAmortization": {
     "auth_ref": [
      "r197"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "label": "Capitalized Contract Cost, Amortization",
        "terseLabel": "Capitalized contract cost, amortization"
       }
      }
     },
     "localname": "CapitalizedContractCostAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognitionDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedContractCostImpairmentLoss": {
     "auth_ref": [
      "r197"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "label": "Capitalized Contract Cost, Impairment Loss",
        "terseLabel": "Capitalized contract cost, impairment loss"
       }
      }
     },
     "localname": "CapitalizedContractCostImpairmentLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevenueRecognitionDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedContractCostNet": {
     "auth_ref": [
      "r196"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "label": "Capitalized Contract Cost, Net",
        "terseLabel": "Costs to fulfill"
       }
      }
     },
     "localname": "CapitalizedContractCostNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognitionDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r2",
      "r33",
      "r103"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash and Cash Equivalents, at Carrying Value",
        "verboseLabel": "Cash and cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsPolicyTextBlock": {
     "auth_ref": [
      "r13",
      "r104",
      "r107"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.",
        "label": "Cash and Cash Equivalents, Policy [Policy Text Block]",
        "terseLabel": "Cash and Cash Equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r96",
      "r103",
      "r106"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "periodEndLabel": "Cash and cash equivalents, end of period",
        "periodStartLabel": "Cash and cash equivalents, beginning of period"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r96",
      "r417"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "totalLabel": "Increase (decrease) in cash and cash equivalents"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ClassOfWarrantOrRightAxis": {
     "auth_ref": [
      "r121",
      "r270",
      "r292"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of warrant or right issued.",
        "label": "Class of Warrant or Right [Axis]",
        "terseLabel": "Class of Warrant or Right [Axis]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightDomain": {
     "auth_ref": [
      "r112"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the class or type of warrant or right outstanding. Warrants and rights represent derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months.",
        "label": "Class of Warrant or Right [Domain]",
        "terseLabel": "Class of Warrant or Right [Domain]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": {
     "auth_ref": [
      "r120"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Exercise price per share or per unit of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights",
        "terseLabel": "Class of warrant or right, exercise price (in usd per share)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights": {
     "auth_ref": [
      "r119"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.",
        "label": "Class of Warrant or Right, Number of Securities Called by Warrants or Rights",
        "terseLabel": "Number of warrants or rights exercisable (in shares)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r45",
      "r245",
      "r481",
      "r494"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
        "label": "Commitments and Contingencies",
        "terseLabel": "Commitments and contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r244",
      "r254"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "verboseLabel": "Commitments and Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock, Par or Stated Value Per Share",
        "verboseLabel": "Common stock, par value (in USD per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock, Shares Authorized",
        "verboseLabel": "Common stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.",
        "label": "Common Stock, Shares, Issued",
        "verboseLabel": "Common stock, shares issued (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r24",
      "r262"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock, Shares, Outstanding",
        "verboseLabel": "Common stock, shares outstanding (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r24"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Common Stock, Value, Issued",
        "verboseLabel": "Common stock, par value $0.0001 per share, 200,000 and 200,000 shares authorized, 64,820 and 64,495 shares issued, 52,133 and 51,807 shares outstanding, respectively"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CompensationAndEmployeeBenefitPlansTextBlock": {
     "auth_ref": [
      "r283",
      "r284",
      "r290",
      "r342"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.",
        "label": "Compensation and Employee Benefit Plans [Text Block]",
        "terseLabel": "Benefit Plans"
       }
      }
     },
     "localname": "CompensationAndEmployeeBenefitPlansTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BenefitPlans"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CompensationAndRetirementDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Retirement Benefits [Abstract]"
       }
      }
     },
     "localname": "CompensationAndRetirementDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r63",
      "r65",
      "r395",
      "r397"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest",
        "terseLabel": "Comprehensive income (loss)",
        "totalLabel": "Comprehensive (loss) income"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomePolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for comprehensive income.",
        "label": "Comprehensive Income, Policy [Policy Text Block]",
        "terseLabel": "Comprehensive (Loss) Income"
       }
      }
     },
     "localname": "ComprehensiveIncomePolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ComputerEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Long lived, depreciable assets that are used in the creation, maintenance and utilization of information systems.",
        "label": "Computer Equipment [Member]",
        "terseLabel": "Computer equipment"
       }
      }
     },
     "localname": "ComputerEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConcentrationRiskBenchmarkDomain": {
     "auth_ref": [
      "r152",
      "r153",
      "r411",
      "r412"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.",
        "label": "Concentration Risk Benchmark [Domain]",
        "terseLabel": "Concentration Risk Benchmark [Domain]"
       }
      }
     },
     "localname": "ConcentrationRiskBenchmarkDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConcentrationRiskByBenchmarkAxis": {
     "auth_ref": [
      "r152",
      "r153",
      "r411",
      "r412",
      "r500"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by benchmark of concentration risk.",
        "label": "Concentration Risk Benchmark [Axis]",
        "terseLabel": "Concentration Risk Benchmark [Axis]"
       }
      }
     },
     "localname": "ConcentrationRiskByBenchmarkAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskByTypeAxis": {
     "auth_ref": [
      "r152",
      "r153",
      "r411",
      "r412",
      "r500"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.",
        "label": "Concentration Risk Type [Axis]",
        "terseLabel": "Concentration Risk Type [Axis]"
       }
      }
     },
     "localname": "ConcentrationRiskByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskPercentage1": {
     "auth_ref": [
      "r152",
      "r153",
      "r411",
      "r412"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.",
        "label": "Concentration Risk, Percentage",
        "terseLabel": "Concentration risk, percentage"
       }
      }
     },
     "localname": "ConcentrationRiskPercentage1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ConcentrationRiskTypeDomain": {
     "auth_ref": [
      "r152",
      "r153",
      "r411",
      "r412"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.",
        "label": "Concentration Risk Type [Domain]",
        "terseLabel": "Concentration Risk Type [Domain]"
       }
      }
     },
     "localname": "ConcentrationRiskTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ContractTerminationMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Termination of a contract associated with exit from or disposal of business activities or restructurings pursuant to a plan.",
        "label": "Contract Termination [Member]",
        "terseLabel": "Lease and Contract Termination Costs"
       }
      }
     },
     "localname": "ContractTerminationMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of contract balances and changes in contract balances.",
        "label": "Contract with Customer, Asset and Liability [Table Text Block]",
        "terseLabel": "Contract with Customer, Liability"
       }
      }
     },
     "localname": "ContractWithCustomerAssetAndLiabilityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognitionTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityCurrent": {
     "auth_ref": [
      "r272",
      "r273",
      "r277"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.",
        "label": "Contract with Customer, Liability, Current",
        "terseLabel": "Deferred revenue",
        "verboseLabel": "Contract liabilities"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevenueRecognitionDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": {
     "auth_ref": [
      "r278"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.",
        "label": "Contract with Customer, Liability, Revenue Recognized",
        "terseLabel": "Revenue recognized"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityRevenueRecognized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognitionDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfGoodsAndServicesSold": {
     "auth_ref": [
      "r76"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.",
        "label": "Cost of Goods and Services Sold",
        "terseLabel": "Cost of goods sold"
       }
      }
     },
     "localname": "CostOfGoodsAndServicesSold",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfSalesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing cost of sales.",
        "label": "Cost of Sales [Member]",
        "terseLabel": "Cost of Good Sold"
       }
      }
     },
     "localname": "CostOfSalesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostOfSalesPolicyTextBlock": {
     "auth_ref": [
      "r282"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for cost of product sold and service rendered.",
        "label": "Cost of Goods and Service [Policy Text Block]",
        "terseLabel": "Cost of Goods Sold"
       }
      }
     },
     "localname": "CostOfSalesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CreditFacilityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Axis]",
        "terseLabel": "Credit Facility [Axis]"
       }
      }
     },
     "localname": "CreditFacilityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Domain]",
        "terseLabel": "Credit Facility [Domain]"
       }
      }
     },
     "localname": "CreditFacilityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.",
        "label": "Cumulative Effect of New Accounting Principle in Period of Adoption",
        "terseLabel": "Cumulative effect of change related to adoption"
       }
      }
     },
     "localname": "CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1": {
     "auth_ref": [
      "r130"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the cumulative effect on retained earnings net of related income tax effect.",
        "label": "Cumulative Effect on Retained Earnings, Net of Tax",
        "terseLabel": "Cumulative effect of pre-2017 revision adjustments"
       }
      }
     },
     "localname": "CumulativeEffectOnRetainedEarningsNetOfTax1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CurrentFederalTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r376",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Current Federal Tax Expense (Benefit)",
        "verboseLabel": "Federal"
       }
      }
     },
     "localname": "CurrentFederalTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CurrentForeignTaxExpenseBenefit": {
     "auth_ref": [
      "r118",
      "r378"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Current Foreign Tax Expense (Benefit)",
        "verboseLabel": "Foreign"
       }
      }
     },
     "localname": "CurrentForeignTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CurrentIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r376",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.",
        "label": "Current Income Tax Expense (Benefit)",
        "totalLabel": "Total current income tax expense"
       }
      }
     },
     "localname": "CurrentIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Current Income Tax Expense (Benefit), Continuing Operations [Abstract]",
        "verboseLabel": "Current income tax expense (benefit):"
       }
      }
     },
     "localname": "CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CurrentStateAndLocalTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r376",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Current State and Local Tax Expense (Benefit)",
        "verboseLabel": "State"
       }
      }
     },
     "localname": "CurrentStateAndLocalTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CustomerListsMember": {
     "auth_ref": [
      "r391"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information about customers such as their name and contact information; it may also be an extensive database that includes other information about the customers such as their order history and demographic information.",
        "label": "Customer Lists [Member]",
        "terseLabel": "Customer lists"
       }
      }
     },
     "localname": "CustomerListsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtDisclosureTextBlock": {
     "auth_ref": [
      "r261"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.",
        "label": "Debt Disclosure [Text Block]",
        "terseLabel": "Revolving Credit Facilities",
        "verboseLabel": "Long-Term Debt"
       }
      }
     },
     "localname": "DebtDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebt",
      "http://www.inwk.com/role/RevolvingCreditFacilities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r18",
      "r19",
      "r20",
      "r477",
      "r479",
      "r488"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "terseLabel": "Basis spread on variable rate"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentConvertibleThresholdTradingDays": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.",
        "label": "Debt Instrument, Convertible, Threshold Trading Days",
        "terseLabel": "Debt instrument, convertible, threshold trading days"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleThresholdTradingDays",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Debt Instrument [Line Items]",
        "terseLabel": "Debt Instrument [Line Items]"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r43"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument, Name [Domain]",
        "terseLabel": "Debt Instrument, Name [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentPeriodicPaymentPrincipal": {
     "auth_ref": [
      "r43"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the required periodic payments applied to principal.",
        "label": "Debt Instrument, Periodic Payment, Principal",
        "terseLabel": "Debt instrument, periodic payment, principal"
       }
      }
     },
     "localname": "DebtInstrumentPeriodicPaymentPrincipal",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r43",
      "r115",
      "r263",
      "r264",
      "r265",
      "r266",
      "r421",
      "r422",
      "r424",
      "r485"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table]",
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscount": {
     "auth_ref": [
      "r421",
      "r424"
     ],
     "calculation": {
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LongTermLineOfCredit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt discount.",
        "label": "Debt Instrument, Unamortized Discount",
        "negatedTerseLabel": "Less: ABL Embedded Derivative Discount"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtPolicyTextBlock": {
     "auth_ref": [
      "r107",
      "r259"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy related to debt. Includes, but is not limited to, debt issuance costs, the effects of refinancings, method of amortizing debt issuance costs and original issue discount, and classifications of debt.",
        "label": "Debt, Policy [Policy Text Block]",
        "terseLabel": "Deferred Financing Fees and Debt Discounts"
       }
      }
     },
     "localname": "DebtPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DeferredFederalIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r377",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Deferred Federal Income Tax Expense (Benefit)",
        "verboseLabel": "Federal"
       }
      }
     },
     "localname": "DeferredFederalIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredFinanceCostsNet": {
     "auth_ref": [
      "r37",
      "r423"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Net",
        "terseLabel": "Debt issuance costs"
       }
      }
     },
     "localname": "DeferredFinanceCostsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredFinanceCostsNoncurrentNet": {
     "auth_ref": [
      "r37",
      "r423"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Noncurrent, Net",
        "terseLabel": "Deferred financing costs"
       }
      }
     },
     "localname": "DeferredFinanceCostsNoncurrentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredForeignIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r377",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Deferred Foreign Income Tax Expense (Benefit)",
        "verboseLabel": "Foreign"
       }
      }
     },
     "localname": "DeferredForeignIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxAssetsNet": {
     "auth_ref": [
      "r370"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_OtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.",
        "label": "Deferred Income Tax Assets, Net",
        "verboseLabel": "Deferred income taxes"
       }
      }
     },
     "localname": "DeferredIncomeTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r101",
      "r111",
      "r377",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 17.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Deferred Income Tax Expense (Benefit)",
        "totalLabel": "Total deferred income tax expense",
        "verboseLabel": "Deferred income taxes"
       }
      }
     },
     "localname": "DeferredIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]",
        "verboseLabel": "Deferred income tax expense (benefit):"
       }
      }
     },
     "localname": "DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DeferredIncomeTaxLiabilities": {
     "auth_ref": [
      "r21",
      "r22",
      "r366",
      "r478",
      "r487"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.",
        "label": "Deferred Tax Liabilities, Gross",
        "negatedTotalLabel": "Deferred tax liabilities"
       }
      }
     },
     "localname": "DeferredIncomeTaxLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxLiabilitiesNet": {
     "auth_ref": [
      "r353",
      "r370"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.",
        "label": "Deferred Income Tax Liabilities, Net",
        "terseLabel": "Deferred income taxes"
       }
      }
     },
     "localname": "DeferredIncomeTaxLiabilitiesNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r377",
      "r382"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Deferred State and Local Income Tax Expense (Benefit)",
        "verboseLabel": "State"
       }
      }
     },
     "localname": "DeferredStateAndLocalIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.",
        "label": "Deferred Tax Assets, Goodwill and Intangible Assets",
        "terseLabel": "Income tax basis in excess of financial statement basis in intangible assets"
       }
      }
     },
     "localname": "DeferredTaxAssetsGoodwillAndIntangibleAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsGross": {
     "auth_ref": [
      "r367"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "Deferred Tax Assets, Gross",
        "totalLabel": "Deferred tax assets"
       }
      }
     },
     "localname": "DeferredTaxAssetsGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsInventory": {
     "auth_ref": [
      "r346",
      "r374",
      "r375"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.",
        "label": "Deferred Tax Assets, Inventory",
        "terseLabel": "Inventory reserve"
       }
      }
     },
     "localname": "DeferredTaxAssetsInventory",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsNet": {
     "auth_ref": [
      "r368"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxLiabilities",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "Deferred Tax Assets, Net of Valuation Allowance",
        "totalLabel": "Net deferred tax assets"
       }
      }
     },
     "localname": "DeferredTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsNetNoncurrentClassificationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Classification [Abstract]",
        "verboseLabel": "Deferred tax assets:"
       }
      }
     },
     "localname": "DeferredTaxAssetsNetNoncurrentClassificationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.",
        "label": "Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration",
        "terseLabel": "Operating loss carryforward, not subject to expiration"
       }
      }
     },
     "localname": "DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsTaxCreditCarryforwards": {
     "auth_ref": [
      "r372",
      "r374",
      "r375"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.",
        "label": "Deferred Tax Assets, Tax Credit Carryforwards",
        "verboseLabel": "Tax credit carryforwards"
       }
      }
     },
     "localname": "DeferredTaxAssetsTaxCreditCarryforwards",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther": {
     "auth_ref": [
      "r345",
      "r374",
      "r375"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.",
        "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other",
        "verboseLabel": "Other reserves and allowances"
       }
      }
     },
     "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r369"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.",
        "label": "Deferred Tax Assets, Valuation Allowance",
        "negatedLabel": "Valuation allowance",
        "terseLabel": "Valuation allowance"
       }
      }
     },
     "localname": "DeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails",
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilities": {
     "auth_ref": [
      "r353",
      "r370"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.",
        "label": "Deferred Tax Liabilities, Net",
        "negatedTotalLabel": "Net deferred tax liability"
       }
      }
     },
     "localname": "DeferredTaxLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets": {
     "auth_ref": [
      "r346",
      "r374",
      "r375"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill.",
        "label": "Deferred Tax Liabilities, Goodwill and Intangible Assets",
        "negatedLabel": "Intangible assets"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesGoodwillAndIntangibleAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilitiesLeasingArrangements": {
     "auth_ref": [
      "r346",
      "r374",
      "r375"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.",
        "label": "Deferred Tax Liabilities, Leasing Arrangements",
        "negatedTerseLabel": "ASC 842 right of use asset"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesLeasingArrangements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings": {
     "auth_ref": [
      "r374"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.",
        "label": "Deferred Tax Liabilities, Undistributed Foreign Earnings",
        "terseLabel": "Deferred tax liabilities, undistributed foreign earnings"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesUndistributedForeignEarnings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedContributionPlanCostRecognized": {
     "auth_ref": [
      "r289"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost for defined contribution plan.",
        "label": "Defined Contribution Plan, Cost",
        "terseLabel": "Contribution to 401(k)"
       }
      }
     },
     "localname": "DefinedContributionPlanCostRecognized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Depreciation": {
     "auth_ref": [
      "r101",
      "r223"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.",
        "label": "Depreciation",
        "terseLabel": "Depreciation expense"
       }
      }
     },
     "localname": "Depreciation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepreciationDepletionAndAmortization": {
     "auth_ref": [
      "r101",
      "r162"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
        "label": "Depreciation, Depletion and Amortization",
        "negatedLabel": "Depreciation and amortization",
        "verboseLabel": "Depreciation and amortization"
       }
      }
     },
     "localname": "DepreciationDepletionAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r52",
      "r53",
      "r410"
     ],
     "calculation": {
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinancialLiabilitiesFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability",
        "terseLabel": "Derivative"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r342"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement [Text Block]",
        "terseLabel": "Stock-Based Compensation Plan"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlan"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Payment Arrangement [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock": {
     "auth_ref": [
      "r294",
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of share-based payment arrangement.",
        "label": "Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]",
        "terseLabel": "Disclosure of Share-based Compensation Arrangements by Share-based Payment Award"
       }
      }
     },
     "localname": "DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DomesticCountryMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government that is entitled to levy and collect income taxes from the entity in its country of domicile.",
        "label": "Domestic Tax Authority [Member]",
        "terseLabel": "Domestic Tax Authority"
       }
      }
     },
     "localname": "DomesticCountryMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DueFromRelatedPartiesCurrent": {
     "auth_ref": [
      "r5",
      "r14",
      "r25",
      "r113",
      "r450"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).",
        "label": "Due from Related Parties, Current",
        "terseLabel": "Net amount receivable from related parties"
       }
      }
     },
     "localname": "DueFromRelatedPartiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r70",
      "r126",
      "r134",
      "r137",
      "r138",
      "r139",
      "r142",
      "r483",
      "r496"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic",
        "terseLabel": "Basic (loss) earnings per share (in USD per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicAndDiluted": {
     "auth_ref": [
      "r138"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic and Diluted",
        "terseLabel": "Basic and diluted (in USD per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasicAndDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r70",
      "r126",
      "r134",
      "r137",
      "r138",
      "r139",
      "r142",
      "r483",
      "r496"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share, Diluted",
        "terseLabel": "Diluted (loss) earnings per share (in USD per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r143"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "(Loss) Earnings Per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r417"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "terseLabel": "Effect of exchange rate changes on cash and cash equivalents"
       }
      }
     },
     "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies": {
     "auth_ref": [
      "r354",
      "r355",
      "r381"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.",
        "label": "Effective Income Tax Rate Reconciliation, Tax Contingency, Percent",
        "terseLabel": "Unrecognized tax benefits that would impact effective tax rate, percent"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationTaxContingencies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability": {
     "auth_ref": [
      "r399"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.",
        "label": "Embedded Derivative, Fair Value of Embedded Derivative Liability",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet": {
     "auth_ref": [
      "r398"
     ],
     "calculation": {
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LongTermLineOfCredit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.",
        "label": "Embedded Derivative, Fair Value of Embedded Derivative, Net",
        "negatedTerseLabel": "ABL Embedded Derivative Liability",
        "terseLabel": "Term Loan Embedded Derivative Liability"
       }
      }
     },
     "localname": "EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet": {
     "auth_ref": [
      "r400"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.",
        "label": "Embedded Derivative, Gain (Loss) on Embedded Derivative, Net",
        "negatedTerseLabel": "Change in fair value of embedded derivative",
        "terseLabel": "Change in fair value"
       }
      }
     },
     "localname": "EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": {
     "auth_ref": [
      "r324"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition",
        "terseLabel": "Period for recognition of compensation expense"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": {
     "auth_ref": [
      "r324"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount",
        "terseLabel": "Unrecognized stock-based compensation on options"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeSeveranceMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Termination of an employee associated with exit from or disposal of business activities or restructurings pursuant to a plan.",
        "label": "Employee Severance [Member]",
        "terseLabel": "Employee Severance and Related Benefits"
       }
      }
     },
     "localname": "EmployeeSeveranceMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EmployeeStockOptionMember": {
     "auth_ref": [
      "r322"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.",
        "label": "Share-based Payment Arrangement, Option [Member]",
        "terseLabel": "Stock Option"
       }
      }
     },
     "localname": "EmployeeStockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Equity [Abstract]"
       }
      }
     },
     "localname": "EquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r262"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component [Domain]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Error Corrections and Prior Period Adjustments Restatement [Line Items]",
        "terseLabel": "Error Corrections and Prior Period Adjustments Restatement [Line Items]"
       }
      }
     },
     "localname": "ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EurodollarMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate based on U.S. dollar denominated deposits at foreign banks or foreign branches of U.S. banks.",
        "label": "Eurodollar [Member]",
        "terseLabel": "Eurodollar"
       }
      }
     },
     "localname": "EurodollarMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
        "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r401",
      "r402",
      "r403",
      "r408"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.",
        "label": "Fair Value, Recurring and Nonrecurring [Table]",
        "terseLabel": "Fair Value, Recurring and Nonrecurring [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]",
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table]",
        "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]",
        "terseLabel": "Schedule of Fair Value Measurements, Valuation Techniques"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r285",
      "r286",
      "r288",
      "r402",
      "r459"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r401",
      "r402",
      "r405",
      "r406",
      "r409"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by measurement frequency.",
        "label": "Measurement Frequency [Axis]",
        "terseLabel": "Measurement Frequency [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementFrequencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "auth_ref": [
      "r407"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.",
        "label": "Fair Value Disclosures [Text Block]",
        "verboseLabel": "Fair Value Measurement"
       }
      }
     },
     "localname": "FairValueDisclosuresTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurement"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r285",
      "r286",
      "r288",
      "r402",
      "r460"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "terseLabel": "Significant Other Observable Inputs (Level 2)"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r285",
      "r286",
      "r288",
      "r402",
      "r461"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Inputs, Level 3 [Member]",
        "terseLabel": "Significant Unobservable Inputs (Level 3)"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock": {
     "auth_ref": [
      "r401",
      "r402"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).  Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]",
        "terseLabel": "Schedule of Fair Value, Liabilities Measured on Recurring Basis"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]",
        "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfInitialWarrantDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Measurement Frequency [Domain]",
        "terseLabel": "Measurement Frequency [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.",
        "label": "Fair Value Measurement, Policy [Policy Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueMeasurementPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "terseLabel": "Fair Value Hierarchy and NAV [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r407",
      "r409"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.",
        "label": "Fair Value, Recurring [Member]",
        "terseLabel": "Fair Value, Recurring"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]",
        "terseLabel": "Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]"
       }
      }
     },
     "localname": "FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtChangeInFairValueOfTermLoanEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinanceLeaseInterestExpense": {
     "auth_ref": [
      "r432",
      "r437",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 2.0,
       "parentTag": "inwk_FinanceLeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest expense on finance lease liability.",
        "label": "Finance Lease, Interest Expense",
        "terseLabel": "Interest on lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseInterestPaymentOnLiability": {
     "auth_ref": [
      "r433",
      "r442"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails": {
       "order": 1.0,
       "parentTag": "inwk_LeasePayments",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of interest paid on finance lease liability.",
        "label": "Finance Lease, Interest Payment on Liability",
        "terseLabel": "Operating cash flows from finance leases"
       }
      }
     },
     "localname": "FinanceLeaseInterestPaymentOnLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Finance Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Finance"
       }
      }
     },
     "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinanceLeaseLiability": {
     "auth_ref": [
      "r431",
      "r446"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "label": "Finance Lease, Liability",
        "terseLabel": "Present value of lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityCurrent": {
     "auth_ref": [
      "r431"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "inwk_OperatingandFinanceLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.",
        "label": "Finance Lease, Liability, Current",
        "terseLabel": "Finance"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r446"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.",
        "label": "Finance Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Finance Lease, Liability, Maturity"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FinanceLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r431"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 4.0,
       "parentTag": "inwk_OperatingandFinanceLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.",
        "label": "Finance Lease, Liability, Noncurrent",
        "terseLabel": "Finance"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Payment, Due",
        "totalLabel": "Total lease payments"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in next fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r446"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAsset": {
     "auth_ref": [
      "r430"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "inwk_OperatingandFinanceLeaseRightofUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under finance lease.",
        "label": "Finance Lease, Right-of-Use Asset",
        "totalLabel": "Right of use assets, net"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAssetAmortization": {
     "auth_ref": [
      "r432",
      "r437",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 1.0,
       "parentTag": "inwk_FinanceLeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense attributable to right-of-use asset from finance lease.",
        "label": "Finance Lease, Right-of-Use Asset, Amortization",
        "terseLabel": "Amortization of right of use assets"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAssetAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r444",
      "r447"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for finance lease calculated at point in time.",
        "label": "Finance Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Finance leases"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r443",
      "r447"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Finance Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Finance leases"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FinancialLiabilitiesFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.",
        "label": "Financial Liabilities Fair Value Disclosure",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "FinancialLiabilitiesFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetUsefulLife": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Finite-Lived Intangible Asset, Useful Life",
        "terseLabel": "Useful life of intangible assets"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": {
     "auth_ref": [
      "r215"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Accumulated Amortization",
        "negatedTerseLabel": "Less accumulated amortization and impairment:"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Five",
        "verboseLabel": "2024"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {
     "auth_ref": [
      "r217"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": {
     "auth_ref": [
      "r209",
      "r211",
      "r215",
      "r218",
      "r462"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by major type or class of finite-lived intangible assets.",
        "label": "Finite-Lived Intangible Assets by Major Class [Axis]",
        "terseLabel": "Finite-Lived Intangible Assets By Major Class [Axis]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsGross": {
     "auth_ref": [
      "r215",
      "r462"
     ],
     "calculation": {
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Gross",
        "terseLabel": "Intangible assets, gross"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Finite-Lived Intangible Assets [Line Items]",
        "terseLabel": "Finite-Lived Intangible Assets [Line Items]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "auth_ref": [
      "r209",
      "r214"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.",
        "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]",
        "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsNet": {
     "auth_ref": [
      "r215"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Net",
        "verboseLabel": "Finite-lived intangible assets"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ForeignCountryMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax departments of governments entitled to levy and collect income taxes from the entity outside the entity's country of domicile.",
        "label": "Foreign Tax Authority [Member]",
        "terseLabel": "Foreign Tax Authority"
       }
      }
     },
     "localname": "ForeignCountryMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ForeignCurrencyTransactionGainLossRealized": {
     "auth_ref": [
      "r414",
      "r415",
      "r416"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.",
        "label": "Foreign Currency Transaction Gain (Loss), Realized",
        "terseLabel": "Realized gain (loss) on foreign currency transactions"
       }
      }
     },
     "localname": "ForeignCurrencyTransactionGainLossRealized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ForeignCurrencyTransactionGainLossUnrealized": {
     "auth_ref": [
      "r102",
      "r414",
      "r415",
      "r416"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.",
        "label": "Foreign Currency Transaction Gain (Loss), Unrealized",
        "negatedTerseLabel": "Unrealized foreign exchange loss"
       }
      }
     },
     "localname": "ForeignCurrencyTransactionGainLossUnrealized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock": {
     "auth_ref": [
      "r107",
      "r416",
      "r419"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy.",
        "label": "Foreign Currency Transactions and Translations Policy [Policy Text Block]",
        "verboseLabel": "Foreign Currency Translation and Highly Inflationary Accounting"
       }
      }
     },
     "localname": "ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FurnitureAndFixturesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
        "label": "Furniture and Fixtures [Member]",
        "terseLabel": "Office equipment and furniture"
       }
      }
     },
     "localname": "FurnitureAndFixturesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r198",
      "r200"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "verboseLabel": "Goodwill"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Goodwill and Intangible Assets Disclosure [Abstract]"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy": {
     "auth_ref": [
      "r107",
      "r203"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for goodwill. This accounting policy also may address how an entity assesses and measures impairment of goodwill, how reporting units are determined, how goodwill is allocated to such units, and how the fair values of the reporting units are determined.",
        "label": "Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]",
        "terseLabel": "Goodwill"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsGoodwillPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy": {
     "auth_ref": [
      "r107",
      "r212"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined.",
        "label": "Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]",
        "terseLabel": "Other Intangible Assets"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsIntangibleAssetsPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_GoodwillDisclosureTextBlock": {
     "auth_ref": [
      "r206"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for goodwill.",
        "label": "Goodwill Disclosure [Text Block]",
        "terseLabel": "Goodwill"
       }
      }
     },
     "localname": "GoodwillDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Goodwill"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_GoodwillForeignCurrencyTranslationGainLoss": {
     "auth_ref": [
      "r202"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill, Foreign Currency Translation Gain (Loss)",
        "terseLabel": "Foreign exchange impact"
       }
      }
     },
     "localname": "GoodwillForeignCurrencyTranslationGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillImpairmentLoss": {
     "auth_ref": [
      "r101",
      "r199",
      "r201",
      "r204"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 10.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 5.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill, Impairment Loss",
        "negatedLabel": "Goodwill impairment",
        "negatedTerseLabel": "Goodwill impairment",
        "terseLabel": "Goodwill impairment"
       }
      }
     },
     "localname": "GoodwillImpairmentLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Goodwill [Line Items]",
        "terseLabel": "Goodwill [Line Items]"
       }
      }
     },
     "localname": "GoodwillLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_GoodwillRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Goodwill [Roll Forward]",
        "terseLabel": "Goodwill [Roll Forward]"
       }
      }
     },
     "localname": "GoodwillRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_GrossProfit": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
        "label": "Gross Profit",
        "terseLabel": "Gross profit",
        "totalLabel": "Gross profit"
       }
      }
     },
     "localname": "GrossProfit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImpairmentOfIntangibleAssetsFinitelived": {
     "auth_ref": [
      "r101",
      "r219"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 11.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 6.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.",
        "label": "Impairment of Intangible Assets, Finite-lived",
        "negatedLabel": "Intangible and long-lived asset impairment",
        "terseLabel": "Intangible and other asset impairments",
        "verboseLabel": "Intangible and other asset impairments"
       }
      }
     },
     "localname": "ImpairmentOfIntangibleAssetsFinitelived",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign": {
     "auth_ref": [
      "r117"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.",
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Foreign",
        "verboseLabel": "Income (loss) from foreign operations"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": {
     "auth_ref": [
      "r117"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.",
        "label": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest",
        "terseLabel": "(Loss) income before income taxes",
        "totalLabel": "(Loss) income before income taxes"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r228"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location [Axis]"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location [Domain]"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxAuthorityAxis": {
     "auth_ref": [
      "r358"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by tax jurisdiction.",
        "label": "Income Tax Authority [Axis]",
        "terseLabel": "Income Tax Authority [Axis]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxAuthorityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Agency, division or body classification that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.",
        "label": "Income Tax Authority [Domain]",
        "terseLabel": "Income Tax Authority [Domain]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxAuthorityNameAxis": {
     "auth_ref": [
      "r358"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by name of taxing authority.",
        "label": "Income Tax Authority, Name [Axis]",
        "terseLabel": "Income Tax Authority, Name [Axis]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxAuthorityNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Named agency, division or body that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.",
        "label": "Income Tax Authority, Name [Domain]",
        "terseLabel": "Income Tax Authority, Name [Domain]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Tax Disclosure [Abstract]"
       }
      }
     },
     "localname": "IncomeTaxDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxDisclosureTextBlock": {
     "auth_ref": [
      "r388"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.",
        "label": "Income Tax Disclosure [Text Block]",
        "verboseLabel": "Income Taxes"
       }
      }
     },
     "localname": "IncomeTaxDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxes"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense": {
     "auth_ref": [
      "r356"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 8.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.",
        "label": "Income Tax Examination, Penalties and Interest Expense",
        "negatedTerseLabel": "Sales and use tax audit"
       }
      }
     },
     "localname": "IncomeTaxExaminationPenaltiesAndInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r111",
      "r163",
      "r384"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Income Tax Expense (Benefit)",
        "negatedLabel": "(Benefit) provision for income tax",
        "terseLabel": "Provision (benefit) for income tax",
        "totalLabel": "Provision (benefit) for income taxes"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/IncomeTaxesComponentsOfIncomeTaxesDetails",
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxPolicyTextBlock": {
     "auth_ref": [
      "r66",
      "r107",
      "r351",
      "r352",
      "r364",
      "r365",
      "r371",
      "r386",
      "r505"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.",
        "label": "Income Tax, Policy [Policy Text Block]",
        "terseLabel": "Income Taxes"
       }
      }
     },
     "localname": "IncomeTaxPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r350",
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 8.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.",
        "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount",
        "terseLabel": "Change in valuation allowances"
       }
      }
     },
     "localname": "IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails",
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate": {
     "auth_ref": [
      "r349",
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.",
        "label": "Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount",
        "terseLabel": "Federal, state and international deferred tax rate change"
       }
      }
     },
     "localname": "IncomeTaxReconciliationChangeInEnactedTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": {
     "auth_ref": [
      "r110",
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.",
        "label": "Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount",
        "verboseLabel": "Tax (benefit) provision at U.S. federal income tax rate"
       }
      }
     },
     "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther": {
     "auth_ref": [
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 11.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.",
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount",
        "terseLabel": "Nondeductible expense and other"
       }
      }
     },
     "localname": "IncomeTaxReconciliationNondeductibleExpenseOther",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationOtherAdjustments": {
     "auth_ref": [
      "r354"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 10.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.",
        "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Amount",
        "terseLabel": "Write-off of deferred taxes and tax receivables"
       }
      }
     },
     "localname": "IncomeTaxReconciliationOtherAdjustments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes": {
     "auth_ref": [
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 9.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).",
        "label": "Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount",
        "terseLabel": "Prior year provision to return adjustment"
       }
      }
     },
     "localname": "IncomeTaxReconciliationPriorYearIncomeTaxes",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings": {
     "auth_ref": [
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings.",
        "label": "Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount",
        "terseLabel": "Transition tax"
       }
      }
     },
     "localname": "IncomeTaxReconciliationRepatriationOfForeignEarnings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes": {
     "auth_ref": [
      "r110",
      "r354",
      "r355"
     ],
     "calculation": {
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).",
        "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount",
        "verboseLabel": "State income taxes, net of federal income tax effect"
       }
      }
     },
     "localname": "IncomeTaxReconciliationStateAndLocalIncomeTaxes",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesEffectiveIncomeTaxReconciliationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesPaid": {
     "auth_ref": [
      "r98",
      "r105"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.",
        "label": "Income Taxes Paid",
        "terseLabel": "Income taxes paid"
       }
      }
     },
     "localname": "IncomeTaxesPaid",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayable": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 15.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
        "label": "Increase (Decrease) in Accounts Payable",
        "verboseLabel": "Accounts payable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedLiabilities": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 16.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.",
        "label": "Increase (Decrease) in Accrued Liabilities",
        "terseLabel": "Accrued expenses and other liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInInventories": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.",
        "label": "Increase (Decrease) in Inventories",
        "negatedLabel": "Inventories"
       }
      }
     },
     "localname": "IncreaseDecreaseInInventories",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]",
        "verboseLabel": "Changes in assets and liabilities:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.",
        "label": "Increase (Decrease) in Prepaid Expense and Other Assets",
        "negatedLabel": "Prepaid expenses and other assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
        "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]"
       }
      }
     },
     "localname": "IncreaseDecreaseInStockholdersEquityRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities": {
     "auth_ref": [
      "r136",
      "r141"
     ],
     "calculation": {
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.",
        "label": "Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities",
        "terseLabel": "Issuance of warrants (in shares)"
       }
      }
     },
     "localname": "IncrementalCommonSharesAttributableToConversionOfDebtSecurities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements": {
     "auth_ref": [
      "r135",
      "r141"
     ],
     "calculation": {
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.",
        "label": "Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements",
        "verboseLabel": "Employee stock options and restricted common shares (in shares)"
       }
      }
     },
     "localname": "IncrementalCommonSharesAttributableToShareBasedPaymentArrangements",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_IntangibleAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r222"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for all or part of the information related to intangible assets.",
        "label": "Intangible Assets Disclosure [Text Block]",
        "terseLabel": "Other Intangible Assets"
       }
      }
     },
     "localname": "IntangibleAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssets"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IntangibleAssetsNetExcludingGoodwill": {
     "auth_ref": [
      "r207",
      "r213"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherAssets",
       "weight": 1.0
      },
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.",
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "totalLabel": "Intangible assets, net",
        "verboseLabel": "Intangible assets, net"
       }
      }
     },
     "localname": "IntangibleAssetsNetExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfFutureAmortizationExpenseDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpense": {
     "auth_ref": [
      "r68",
      "r161",
      "r420",
      "r423",
      "r484"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.",
        "label": "Interest Expense",
        "negatedLabel": "Interest expense"
       }
      }
     },
     "localname": "InterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseDebt": {
     "auth_ref": [
      "r80",
      "r260"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense for debt.",
        "label": "Interest Expense, Debt",
        "terseLabel": "Interest expense"
       }
      }
     },
     "localname": "InterestExpenseDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r94",
      "r97",
      "r105"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "terseLabel": "Interest paid"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InternalUseSoftwarePolicy": {
     "auth_ref": [
      "r107",
      "r220",
      "r221"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for costs incurred when both (1) the software is acquired, internally developed, or modified solely to meet the entity's internal needs, and (2) during the software's development or modification, no substantive plan exists or is being developed to market the software externally.",
        "label": "Internal Use Software, Policy [Policy Text Block]",
        "terseLabel": "Internal-Use Software"
       }
      }
     },
     "localname": "InternalUseSoftwarePolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IntersegmentEliminationMember": {
     "auth_ref": [
      "r166"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Eliminating entries used in operating segment consolidation.",
        "label": "Intersegment Eliminations [Member]",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "IntersegmentEliminationMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InventoryNet": {
     "auth_ref": [
      "r3",
      "r48",
      "r191"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.",
        "label": "Inventory, Net",
        "verboseLabel": "Inventories"
       }
      }
     },
     "localname": "InventoryNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryPolicyTextBlock": {
     "auth_ref": [
      "r12",
      "r49",
      "r107",
      "r144",
      "r192",
      "r193"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.",
        "label": "Inventory, Policy [Policy Text Block]",
        "terseLabel": "Inventories"
       }
      }
     },
     "localname": "InventoryPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InventoryValuationReserves": {
     "auth_ref": [
      "r48",
      "r123",
      "r191",
      "r194"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of valuation reserve for inventory.",
        "label": "Inventory Valuation Reserves",
        "terseLabel": "Inventory reserve"
       }
      }
     },
     "localname": "InventoryValuationReserves",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeInterest": {
     "auth_ref": [
      "r78",
      "r160"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.",
        "label": "Investment Income, Interest",
        "verboseLabel": "Interest income"
       }
      }
     },
     "localname": "InvestmentIncomeInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCost": {
     "auth_ref": [
      "r445",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease cost recognized by lessee for lease contract.",
        "label": "Lease, Cost",
        "totalLabel": "Total lease cost"
       }
      }
     },
     "localname": "LeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r445"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
        "label": "Lease, Cost [Table Text Block]",
        "terseLabel": "Lease, Cost"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LeaseholdsAndLeaseholdImprovementsMember": {
     "auth_ref": [
      "r224"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assets held by a lessee under a capital lease and any addition or improvement to assets held under a lease arrangement (including addition or improvement to assets held by lessee under an operating lease arrangement).",
        "label": "Leaseholds and Leasehold Improvements [Member]",
        "terseLabel": "Leasehold improvements"
       }
      }
     },
     "localname": "LeaseholdsAndLeaseholdImprovementsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LeasesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Leases [Abstract]"
       }
      }
     },
     "localname": "LeasesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeFinanceLeasesTextBlock": {
     "auth_ref": [
      "r448"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.",
        "label": "Lessee, Finance Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeFinanceLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeLeaseDescriptionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Lessee, Lease, Description [Line Items]",
        "terseLabel": "Lessee, Lease, Description [Line Items]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeaseDescriptionTable": {
     "auth_ref": [
      "r436"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about lessee's leases.",
        "label": "Lessee, Lease, Description [Table]",
        "terseLabel": "Lessee, Lease, Description [Table]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeasesPolicyTextBlock": {
     "auth_ref": [
      "r435"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for leasing arrangement entered into by lessee.",
        "label": "Lessee, Leases [Policy Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeLeasesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r446"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.",
        "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Lessee, Operating Lease, Liability, Maturity"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetailsCalc2": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due",
        "totalLabel": "Total lease payments"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r446"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetailsCalc2": {
       "order": 1.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeasesTextBlock": {
     "auth_ref": [
      "r448"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.",
        "label": "Lessee, Operating Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeOperatingLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LetterOfCreditMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).",
        "label": "Letter of Credit [Member]",
        "terseLabel": "Letter of Credit"
       }
      }
     },
     "localname": "LetterOfCreditMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LettersOfCreditOutstandingAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.",
        "label": "Letters of Credit Outstanding, Amount",
        "terseLabel": "Letters of credit outstanding"
       }
      }
     },
     "localname": "LettersOfCreditOutstandingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r40"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "label": "Liabilities",
        "terseLabel": "Total liabilities",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r31",
      "r480",
      "r492"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities and Equity",
        "terseLabel": "Total liabilities and stockholders' equity",
        "totalLabel": "Total liabilities and stockholders' equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "verboseLabel": "Liabilities and stockholders' equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r42"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities, Current",
        "terseLabel": "Total current liabilities",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities, Current [Abstract]",
        "verboseLabel": "Current liabilities:"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCredit": {
     "auth_ref": [
      "r20",
      "r479",
      "r488"
     ],
     "calculation": {
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Long-term Line of Credit",
        "terseLabel": "ABL Credit Facility outstanding",
        "totalLabel": "ABL Credit Facility outstanding",
        "verboseLabel": "Term Loan Credit Facility outstanding"
       }
      }
     },
     "localname": "LineOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Line of Credit Facility [Line Items]",
        "terseLabel": "Line of Credit Facility [Line Items]"
       }
      }
     },
     "localname": "LineOfCreditFacilityLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "auth_ref": [
      "r39"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "terseLabel": "Revolving commitment amount"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityTable": {
     "auth_ref": [
      "r39",
      "r115"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.",
        "label": "Line of Credit Facility [Table]",
        "terseLabel": "Line of Credit Facility [Table]"
       }
      }
     },
     "localname": "LineOfCreditFacilityTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LinesOfCreditCurrent": {
     "auth_ref": [
      "r18",
      "r477"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LineOfCredit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Line of Credit, Current",
        "negatedLabel": "Less: Current portion of Term Loan Credit Facility",
        "negatedTerseLabel": "Less: Current portion of ABL Credit Facility for UK Borrowings",
        "terseLabel": "Line of credit - current"
       }
      }
     },
     "localname": "LinesOfCreditCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LinesOfCreditFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinancialLiabilitiesFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.",
        "label": "Lines of Credit, Fair Value Disclosure",
        "terseLabel": "Line of credit, fair value"
       }
      }
     },
     "localname": "LinesOfCreditFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LondonInterbankOfferedRateLIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.",
        "label": "London Interbank Offered Rate (LIBOR) [Member]",
        "terseLabel": "LIBOR"
       }
      }
     },
     "localname": "LondonInterbankOfferedRateLIBORMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermLineOfCredit": {
     "auth_ref": [
      "r43",
      "r257",
      "r258"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "label": "Long-term Line of Credit, Noncurrent",
        "terseLabel": "Line of credit - non-current",
        "totalLabel": "Total Revolving credit facility - non-current",
        "verboseLabel": "Total Term Loan - Non-current"
       }
      }
     },
     "localname": "LongTermLineOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/LongTermDebtSummaryOfTermLoanCreditFacilityDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingenciesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Loss Contingencies [Line Items]",
        "terseLabel": "Loss Contingencies [Line Items]"
       }
      }
     },
     "localname": "LossContingenciesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesTable": {
     "auth_ref": [
      "r245",
      "r246",
      "r247",
      "r249",
      "r250",
      "r251",
      "r253",
      "r255",
      "r256"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.",
        "label": "Loss Contingencies [Table]",
        "terseLabel": "Loss Contingencies [Table]"
       }
      }
     },
     "localname": "LossContingenciesTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingencyDamagesSoughtValue": {
     "auth_ref": [
      "r245",
      "r248",
      "r252"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The value (monetary amount) of the award the plaintiff seeks in the legal matter.",
        "label": "Loss Contingency, Damages Sought, Value",
        "verboseLabel": "Damages sought"
       }
      }
     },
     "localname": "LossContingencyDamagesSoughtValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/CommitmentsAndContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MeasurementInputExpectedDividendRateMember": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using expected dividend rate to be paid to holder of share per year.",
        "label": "Measurement Input, Expected Dividend Rate [Member]",
        "terseLabel": "Expected dividend yield"
       }
      }
     },
     "localname": "MeasurementInputExpectedDividendRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputPriceVolatilityMember": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using rate at which price of security will increase (decrease) for given set of returns.",
        "label": "Measurement Input, Price Volatility [Member]",
        "terseLabel": "Expected volatility"
       }
      }
     },
     "localname": "MeasurementInputPriceVolatilityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputRiskFreeInterestRateMember": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using interest rate on instrument with zero risk of financial loss.",
        "label": "Measurement Input, Risk Free Interest Rate [Member]",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "MeasurementInputRiskFreeInterestRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputTypeAxis": {
     "auth_ref": [
      "r404"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Axis]",
        "terseLabel": "Measurement Input Type [Axis]"
       }
      }
     },
     "localname": "MeasurementInputTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MeasurementInputTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Domain]",
        "terseLabel": "Measurement Input Type [Domain]"
       }
      }
     },
     "localname": "MeasurementInputTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MexicanTaxAuthorityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government of Mexico.",
        "label": "Mexican Tax Authority [Member]",
        "terseLabel": "Mexico tax authority"
       }
      }
     },
     "localname": "MexicanTaxAuthorityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MinistryOfEconomicAffairsAndFinanceItalyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government of Italy.",
        "label": "Ministry of Economic Affairs and Finance, Italy [Member]",
        "terseLabel": "Italy tax authority"
       }
      }
     },
     "localname": "MinistryOfEconomicAffairsAndFinanceItalyMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MinistryOfTheEconomyFinanceAndIndustryFranceMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government of France.",
        "label": "Ministry of the Economy, Finance and Industry, France [Member]",
        "terseLabel": "France tax authority"
       }
      }
     },
     "localname": "MinistryOfTheEconomyFinanceAndIndustryFranceMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NationalTaxAgencyJapanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government of Japan.",
        "label": "National Tax Agency, Japan [Member]",
        "terseLabel": "Japan tax authority"
       }
      }
     },
     "localname": "NationalTaxAgencyJapanMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NatureOfOperations": {
     "auth_ref": [
      "r147",
      "r157"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.",
        "label": "Nature of Operations [Text Block]",
        "terseLabel": "Description of the Business"
       }
      }
     },
     "localname": "NatureOfOperations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/DescriptionOfBusiness"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "totalLabel": "Net cash provided by (used in) financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "verboseLabel": "Cash flows from financing activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r96"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "terseLabel": "Net cash used in investing activities",
        "totalLabel": "Net cash used in investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "verboseLabel": "Cash flows from investing activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r96",
      "r99",
      "r102"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "terseLabel": "Net cash (used in) provided by operating activities",
        "totalLabel": "Net cash provided by operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "verboseLabel": "Cash flows from operating activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r61",
      "r64",
      "r69",
      "r102",
      "r141",
      "r482",
      "r495"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 18.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income (Loss) Attributable to Parent",
        "terseLabel": "Net loss",
        "totalLabel": "Net (loss) income",
        "verboseLabel": "Net (loss) income"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": {
     "auth_ref": [
      "r125",
      "r127"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summarization of the changes in an accounting principle or a new accounting pronouncement, including the line items affected by the change and the financial effects of the change on those particular line items.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Table]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Table]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]",
        "terseLabel": "Recent Accounting Pronouncements"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NoncashInvestingAndFinancingItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Noncash Investing and Financing Items [Abstract]",
        "terseLabel": "Supplemental non-cash investing and financing activities:"
       }
      }
     },
     "localname": "NoncashInvestingAndFinancingItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoncompeteAgreementsMember": {
     "auth_ref": [
      "r390"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Agreement in which one party agrees not to pursue a similar trade in competition with another party.",
        "label": "Noncompete Agreements [Member]",
        "terseLabel": "Non-competition agreements"
       }
      }
     },
     "localname": "NoncompeteAgreementsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r79"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "label": "Nonoperating Income (Expense)",
        "terseLabel": "Total other expense",
        "totalLabel": "Total other expense"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "verboseLabel": "Other income (expense):"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NumberOfOperatingSegments": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.",
        "label": "Number of Operating Segments",
        "terseLabel": "Number of segments"
       }
      }
     },
     "localname": "NumberOfOperatingSegments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_OfficeEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tangible personal property used in an office setting. Examples include, but are not limited to, computers, copiers and fax machine.",
        "label": "Office Equipment [Member]",
        "terseLabel": "Office equipment"
       }
      }
     },
     "localname": "OfficeEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OperatingExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Operating Expenses [Abstract]",
        "verboseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "OperatingExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income (Loss)",
        "terseLabel": "(Loss) income from operations",
        "totalLabel": "Income (loss) from operations"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r438",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "label": "Operating Lease, Cost",
        "terseLabel": "Operating lease cost"
       }
      }
     },
     "localname": "OperatingLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseImpairmentLoss": {
     "auth_ref": [
      "r429"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of loss from impairment of right-of-use asset from operating lease.",
        "label": "Operating Lease, Impairment Loss",
        "terseLabel": "Operating lease, impairment loss"
       }
      }
     },
     "localname": "OperatingLeaseImpairmentLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Operating"
       }
      }
     },
     "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r431"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetailsCalc2": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Operating Lease, Liability",
        "verboseLabel": "Present value of lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r431"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "inwk_OperatingandFinanceLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease, Liability, Current",
        "terseLabel": "Operating"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r431"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 3.0,
       "parentTag": "inwk_OperatingandFinanceLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease, Liability, Noncurrent",
        "terseLabel": "Operating"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r434",
      "r442"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails": {
       "order": 2.0,
       "parentTag": "inwk_LeasePayments",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease, Payments",
        "terseLabel": "Operating cash flows from operating leases"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r430"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "inwk_OperatingandFinanceLeaseRightofUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease, Right-of-Use Asset",
        "verboseLabel": "Right of use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesSupplementalBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r444",
      "r447"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for operating lease calculated at point in time.",
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r443",
      "r447"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Operating Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Operating leases"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAverageLeaseTermsAndDiscountRatesDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "label": "Operating Leases, Future Minimum Payments Due",
        "totalLabel": "Total lease payments"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]",
        "terseLabel": "Operating"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "terseLabel": "2019"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFiveYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFourYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInThreeYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInTwoYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter": {
     "auth_ref": [
      "r425",
      "r426"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueThereafter",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesAggregateFutureLeasePaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLossCarryforwards": {
     "auth_ref": [
      "r372"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.",
        "label": "Operating Loss Carryforwards",
        "terseLabel": "Operating loss carryforwards"
       }
      }
     },
     "localname": "OperatingLossCarryforwards",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLossCarryforwardsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Operating Loss Carryforwards [Line Items]",
        "terseLabel": "Income Tax Disclosure [Line Items]"
       }
      }
     },
     "localname": "OperatingLossCarryforwardsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLossCarryforwardsTable": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.",
        "label": "Operating Loss Carryforwards [Table]",
        "terseLabel": "Operating Loss Carryforwards [Table]"
       }
      }
     },
     "localname": "OperatingLossCarryforwardsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingSegmentsMember": {
     "auth_ref": [
      "r159",
      "r167"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifies components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Operating Segments [Member]",
        "terseLabel": "Operating Segments"
       }
      }
     },
     "localname": "OperatingSegmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherAssets": {
     "auth_ref": [
      "r17",
      "r475",
      "r489"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of assets classified as other.",
        "label": "Other Assets",
        "totalLabel": "Total intangibles and other assets"
       }
      }
     },
     "localname": "OtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsCurrent": {
     "auth_ref": [
      "r50"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current assets classified as other.",
        "label": "Other Assets, Current",
        "verboseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r37"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_OtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets, Noncurrent",
        "verboseLabel": "Other non-current assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossBeforeTax": {
     "auth_ref": [
      "r181"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before tax, after reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), before Tax",
        "totalLabel": "Other comprehensive income (loss), before tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Other Comprehensive Income (Loss), before Tax [Abstract]",
        "verboseLabel": "Other comprehensive income (loss), before tax:"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax": {
     "auth_ref": [
      "r54",
      "r56",
      "r413",
      "r418"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossBeforeTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax",
        "terseLabel": "Foreign currency translation adjustments"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r62",
      "r65",
      "r67",
      "r262"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), Net of Tax",
        "terseLabel": "Total other comprehensive income, net of tax",
        "totalLabel": "Other comprehensive income (loss), net of tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss",
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossTax": {
     "auth_ref": [
      "r57",
      "r383",
      "r385"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of tax expense (benefit) allocated to other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), Tax",
        "terseLabel": "Provision (benefit) for income tax related to components of other comprehensive (loss) income"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesCurrent": {
     "auth_ref": [
      "r10",
      "r11",
      "r41"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Current",
        "verboseLabel": "Other current liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r44"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Noncurrent",
        "verboseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpense": {
     "auth_ref": [
      "r81"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": 1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Income (Expense)",
        "terseLabel": "Other, net"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherOperatingActivitiesCashFlowStatement": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example,  cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).",
        "label": "Other Operating Activities, Cash Flow Statement",
        "verboseLabel": "Other operating activities, net"
       }
      }
     },
     "localname": "OtherOperatingActivitiesCashFlowStatement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherReceivablesNetCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.",
        "label": "Other Receivables, Net, Current",
        "terseLabel": "Other receivables"
       }
      }
     },
     "localname": "OtherReceivablesNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherRestructuringMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Restructuring and related activities classified as other.",
        "label": "Other Restructuring [Member]",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherRestructuringMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PatentsMember": {
     "auth_ref": [
      "r392"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Exclusive legal right granted by the government to the owner of the patent to exploit an invention or a process for a period of time specified by law.",
        "label": "Patents [Member]",
        "terseLabel": "Patents"
       }
      }
     },
     "localname": "PatentsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities": {
     "auth_ref": [
      "r92"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.",
        "label": "Payment for Contingent Consideration Liability, Financing Activities",
        "negatedTerseLabel": "Payments of contingent consideration"
       }
      }
     },
     "localname": "PaymentForContingentConsiderationLiabilityFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForRepurchaseOfCommonStock": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow to reacquire common stock during the period.",
        "label": "Payments for Repurchase of Common Stock",
        "negatedTerseLabel": "Repurchases of common stock"
       }
      }
     },
     "localname": "PaymentsForRepurchaseOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForRestructuring": {
     "auth_ref": [
      "r95",
      "r233"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.",
        "label": "Payments for Restructuring",
        "negatedTerseLabel": "Cash payments"
       }
      }
     },
     "localname": "PaymentsForRestructuring",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtIssuanceCosts": {
     "auth_ref": [
      "r91"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.",
        "label": "Payments of Debt Issuance Costs",
        "negatedTerseLabel": "Payment of debt issuance costs"
       }
      }
     },
     "localname": "PaymentsOfDebtIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": {
     "auth_ref": [
      "r84"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.",
        "label": "Payments to Acquire Businesses, Net of Cash Acquired",
        "negatedTerseLabel": "Payments for acquisitions, net of cash acquired"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r85"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "negatedLabel": "Purchases of property and equipment",
        "terseLabel": "Capital expenditures"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PerformanceSharesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based payment arrangement awarded for meeting performance target.",
        "label": "Performance Shares [Member]",
        "terseLabel": "Performance Share Units (PSUs)"
       }
      }
     },
     "localname": "PerformanceSharesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r294",
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name [Axis]"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name [Domain]"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PrepaidExpenseAndOtherAssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Prepaid Expense and Other Assets [Abstract]",
        "verboseLabel": "Intangibles and other assets:"
       }
      }
     },
     "localname": "PrepaidExpenseAndOtherAssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PrepaidExpenseCurrent": {
     "auth_ref": [
      "r6",
      "r8",
      "r195"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense, Current",
        "verboseLabel": "Prepaid expenses"
       }
      }
     },
     "localname": "PrepaidExpenseCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrimeRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate charged by financial institutions to their most creditworthy borrowers.",
        "label": "Prime Rate [Member]",
        "terseLabel": "Prime Rate"
       }
      }
     },
     "localname": "PrimeRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PriorPeriodReclassificationAdjustment": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of a reclassification adjustment made to prior period financial statement amounts.",
        "label": "Prior Period Reclassification Adjustment",
        "terseLabel": "Prior period reclassification adjustment"
       }
      }
     },
     "localname": "PriorPeriodReclassificationAdjustment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfSecuredDebt": {
     "auth_ref": [
      "r87"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.",
        "label": "Proceeds from Issuance of Secured Debt",
        "terseLabel": "Proceeds from net short-term secured borrowings"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfSecuredDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromLinesOfCredit": {
     "auth_ref": [
      "r87",
      "r116"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.",
        "label": "Proceeds from Lines of Credit",
        "terseLabel": "Proceeds from lines of credit"
       }
      }
     },
     "localname": "ProceedsFromLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromPaymentsForOtherFinancingActivities": {
     "auth_ref": [
      "r88",
      "r93",
      "r122"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities classified as other.",
        "label": "Proceeds from (Payments for) Other Financing Activities",
        "verboseLabel": "Other financing activities, net"
       }
      }
     },
     "localname": "ProceedsFromPaymentsForOtherFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfBuildings": {
     "auth_ref": [
      "r83"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from sale of buildings.",
        "label": "Proceeds from Sale of Buildings",
        "terseLabel": "Proceeds from sale of property and equipment"
       }
      }
     },
     "localname": "ProceedsFromSaleOfBuildings",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromStockOptionsExercised": {
     "auth_ref": [
      "r86",
      "r326"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.",
        "label": "Proceeds from Stock Options Exercised",
        "terseLabel": "Proceeds from exercise of stock options"
       }
      }
     },
     "localname": "ProceedsFromStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProfessionalFees": {
     "auth_ref": [
      "r501",
      "r503"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 9.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.",
        "label": "Professional Fees",
        "negatedLabel": "Other professional fees"
       }
      }
     },
     "localname": "ProfessionalFees",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Property, Plant and Equipment [Abstract]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentByTypeAxis": {
     "auth_ref": [
      "r36",
      "r226"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
        "label": "Property, Plant and Equipment, Type [Axis]",
        "terseLabel": "Property, Plant and Equipment, Type [Axis]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": {
     "auth_ref": [
      "r230"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.",
        "label": "Property, Plant and Equipment Disclosure [Text Block]",
        "terseLabel": "Property and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipment"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentDisposals": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.",
        "label": "Property, Plant and Equipment, Disposals",
        "terseLabel": "Property, plant and equipment, disposals"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentDisposals",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentGross": {
     "auth_ref": [
      "r35",
      "r224"
     ],
     "calculation": {
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Gross",
        "terseLabel": "Total Property and Equipment, Gross"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Property, Plant and Equipment [Line Items]",
        "terseLabel": "Property, Plant and Equipment [Line Items]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r15",
      "r16",
      "r226",
      "r493"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Net",
        "terseLabel": "Build-to-suit financing lease assets",
        "totalLabel": "Property and Equipment, Net",
        "verboseLabel": "Property and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": {
     "auth_ref": [
      "r34",
      "r107",
      "r226"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments.",
        "label": "Property, Plant and Equipment, Policy [Policy Text Block]",
        "terseLabel": "Property and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTextBlock": {
     "auth_ref": [
      "r15",
      "r226"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table Text Block]",
        "terseLabel": "Schedule of Property and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentTables",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTypeDomain": {
     "auth_ref": [
      "r15",
      "r224"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "label": "Property, Plant and Equipment, Type [Domain]",
        "terseLabel": "Property, Plant and Equipment, Type [Domain]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentUsefulLife": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.",
        "label": "Property, Plant and Equipment, Useful Life",
        "verboseLabel": "Useful life of property and equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ProvisionForDoubtfulAccounts": {
     "auth_ref": [
      "r71",
      "r185"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.",
        "label": "Accounts Receivable, Credit Loss Expense (Reversal)",
        "terseLabel": "Charged to expense",
        "verboseLabel": "Bad debt provision"
       }
      }
     },
     "localname": "ProvisionForDoubtfulAccounts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfAllowanceForDoubtfulAccountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_QuarterlyFinancialInformationDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Quarterly Financial Information Disclosure [Abstract]"
       }
      }
     },
     "localname": "QuarterlyFinancialInformationDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_QuarterlyFinancialInformationTextBlock": {
     "auth_ref": [
      "r146"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.",
        "label": "Quarterly Financial Information [Text Block]",
        "terseLabel": "Quarterly Selected Financial Information (Unaudited)"
       }
      }
     },
     "localname": "QuarterlyFinancialInformationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnaudited"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RatioOfIndebtednessToNetCapital1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indebtedness divided by net capital.",
        "label": "Ratio of Indebtedness to Net Capital",
        "terseLabel": "Ratio of indebtedness to net capital"
       }
      }
     },
     "localname": "RatioOfIndebtednessToNetCapital1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]",
        "terseLabel": "Uncertain tax positions"
       }
      }
     },
     "localname": "ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyDomain": {
     "auth_ref": [
      "r456"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Domain]",
        "terseLabel": "Related Party [Domain]"
       }
      }
     },
     "localname": "RelatedPartyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty": {
     "auth_ref": [
      "r449"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.",
        "label": "Related Party Transaction, Expenses from Transactions with Related Party",
        "terseLabel": "Amount billed to the Company for consideration of services"
       }
      }
     },
     "localname": "RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Related Party Transaction [Line Items]",
        "terseLabel": "Related Party Transaction [Line Items]"
       }
      }
     },
     "localname": "RelatedPartyTransactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Related Party Transactions [Abstract]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": {
     "auth_ref": [
      "r287",
      "r451",
      "r452",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r472",
      "r473",
      "r474"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Axis]",
        "terseLabel": "Related Party [Axis]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsByRelatedPartyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": {
     "auth_ref": [
      "r456"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Related Party Transactions Disclosure [Text Block]",
        "verboseLabel": "Related Party Transactions"
       }
      }
     },
     "localname": "RelatedPartyTransactionsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactions"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RepaymentsOfLinesOfCredit": {
     "auth_ref": [
      "r90",
      "r116"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.",
        "label": "Repayments of Lines of Credit",
        "negatedTerseLabel": "Repayments of lines of credit"
       }
      }
     },
     "localname": "RepaymentsOfLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfSecuredDebt": {
     "auth_ref": [
      "r90"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.",
        "label": "Repayments of Secured Debt",
        "negatedTerseLabel": "Repayments of net short-term secured borrowings"
       }
      }
     },
     "localname": "RepaymentsOfSecuredDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockMember": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.",
        "label": "Restricted Stock [Member]",
        "terseLabel": "Restricted Share"
       }
      }
     },
     "localname": "RestrictedStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedStockUnitsRSUMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
        "label": "Restricted Stock Units (RSUs) [Member]",
        "terseLabel": "Restricted Share Units (RSUs)"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestructuringAndRelatedActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Restructuring and Related Activities [Abstract]"
       }
      }
     },
     "localname": "RestructuringAndRelatedActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringAndRelatedCostExpectedCost1": {
     "auth_ref": [
      "r232",
      "r234",
      "r241",
      "r243"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount expected to be recognized in earnings for the specified restructuring cost.",
        "label": "Restructuring and Related Cost, Expected Cost",
        "terseLabel": "Restructuring charges, expected cost"
       }
      }
     },
     "localname": "RestructuringAndRelatedCostExpectedCost1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The expected number of positions to be eliminated as a result of restructuring activities.",
        "label": "Restructuring and Related Cost, Expected Number of Positions Eliminated",
        "terseLabel": "Expected number of positions eliminated"
       }
      }
     },
     "localname": "RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_RestructuringCharges": {
     "auth_ref": [
      "r101",
      "r231",
      "r237",
      "r242"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 7.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.",
        "label": "Restructuring Charges",
        "negatedLabel": "Restructuring charges",
        "terseLabel": "Restructuring charges",
        "verboseLabel": "Charges"
       }
      }
     },
     "localname": "RestructuringCharges",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsEbitdaAndAdjustedEbitdaDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestructuringCostAndReserveAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of restructuring cost.",
        "label": "Restructuring Type [Axis]",
        "terseLabel": "Restructuring Type [Axis]"
       }
      }
     },
     "localname": "RestructuringCostAndReserveAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringCostAndReserveLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Restructuring Cost and Reserve [Line Items]",
        "terseLabel": "Restructuring Cost and Reserve [Line Items]"
       }
      }
     },
     "localname": "RestructuringCostAndReserveLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringImpairmentAndOtherActivitiesDisclosureTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.",
        "label": "Restructuring, Impairment, and Other Activities Disclosure [Text Block]",
        "terseLabel": "Restructuring Activities and Charges"
       }
      }
     },
     "localname": "RestructuringImpairmentAndOtherActivitiesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndCharges"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RestructuringPlanAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by individual restructuring plan.",
        "label": "Restructuring Plan [Axis]",
        "terseLabel": "Restructuring Plan [Axis]"
       }
      }
     },
     "localname": "RestructuringPlanAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringPlanDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identification of the individual restructuring plans.",
        "label": "Restructuring Plan [Domain]",
        "terseLabel": "Restructuring Plan [Domain]"
       }
      }
     },
     "localname": "RestructuringPlanDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestructuringReserve": {
     "auth_ref": [
      "r233",
      "r239"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.",
        "label": "Restructuring Reserve",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "RestructuringReserve",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestructuringReserveRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Restructuring Reserve [Roll Forward]",
        "terseLabel": "Restructuring Reserve [Roll Forward]"
       }
      }
     },
     "localname": "RestructuringReserveRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringReserveSettledWithoutCash2": {
     "auth_ref": [
      "r231",
      "r238"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of decrease in the reserve for full or partial settlement through consideration other than cash.",
        "label": "Restructuring Reserve, Settled without Cash",
        "negatedTerseLabel": "Non-cash settlements/adjustments"
       }
      }
     },
     "localname": "RestructuringReserveSettledWithoutCash2",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r28",
      "r267",
      "r491"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings (Accumulated Deficit)",
        "terseLabel": "Retained earnings"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Retained Earnings"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Revenue from Contract with Customer [Abstract]"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": {
     "auth_ref": [
      "r275",
      "r276"
     ],
     "calculation": {
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
        "label": "Revenue from Contract with Customer, Excluding Assessed Tax",
        "terseLabel": "Revenue",
        "totalLabel": "Total revenue",
        "verboseLabel": "Revenue"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerExcludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerSegmentBenchmarkMember": {
     "auth_ref": [
      "r152"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Revenue from specified business segment for satisfaction of performance obligation by transferring promised product and service to customer, when it serves as benchmark in concentration of risk calculation.",
        "label": "Revenue from Contract with Customer, Segment Benchmark [Member]",
        "terseLabel": "Revenue from Contract with Customer, Segment Benchmark"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerSegmentBenchmarkMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r281"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue from Contract with Customer [Text Block]",
        "terseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevenueRecognition"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueFromRelatedParties": {
     "auth_ref": [
      "r74",
      "r502"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.",
        "label": "Revenue from Related Parties",
        "terseLabel": "Print procurement services"
       }
      }
     },
     "localname": "RevenueFromRelatedParties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueRecognitionPolicyTextBlock": {
     "auth_ref": [
      "r108",
      "r109"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources.",
        "label": "Revenue [Policy Text Block]",
        "verboseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RevenueRecognitionPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevolvingCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.",
        "label": "Revolving Credit Facility [Member]",
        "terseLabel": "Revolving Credit Facility",
        "verboseLabel": "Revolving credit facility"
       }
      }
     },
     "localname": "RevolvingCreditFacilityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueMeasurementsDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesChangeInFairValueOfAblEmbeddedDerivativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesSummaryOfAblCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SaleOfStockPricePerShare": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.",
        "label": "Sale of Stock, Price Per Share",
        "terseLabel": "Stock price (in USD per share)"
       }
      }
     },
     "localname": "SaleOfStockPricePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/FairValueMeasurementScheduleOfFairValueAssumptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable": {
     "auth_ref": [
      "r209"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the major classes of acquired finite-lived intangible assets showing the amount, any significant residual value, weighted average amortization period, and other characteristics. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company.",
        "label": "Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]",
        "terseLabel": "Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]"
       }
      }
     },
     "localname": "ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": {
     "auth_ref": [
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.",
        "label": "Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]",
        "terseLabel": "Schedule of Components of Income Tax Expense (Benefit)"
       }
      }
     },
     "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.",
        "label": "Schedule of Debt [Table Text Block]",
        "terseLabel": "Schedule of Debt"
       }
      }
     },
     "localname": "ScheduleOfDebtTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtTables",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": {
     "auth_ref": [
      "r370"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.",
        "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]",
        "terseLabel": "Schedule of Deferred Tax Assets and Liabilities"
       }
      }
     },
     "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of derivative liabilities at fair value.",
        "label": "Schedule of Derivative Liabilities at Fair Value [Table Text Block]",
        "terseLabel": "Schedule of Derivative Liabilities at Fair Value"
       }
      }
     },
     "localname": "ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtTables",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r141"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "verboseLabel": "Schedule of (Loss) Earnings Per Share"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LossEarningsPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": {
     "auth_ref": [
      "r354"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.",
        "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]",
        "terseLabel": "Schedule of Effective Income Tax Rate Reconciliation"
       }
      }
     },
     "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable": {
     "auth_ref": [
      "r128",
      "r129",
      "r130"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of prior period adjustments to correct an error in previously issued financial statements. The disclosure may include, but is not limited to: (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustment (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. This table can be used to disclose the amounts as previously reported and the effect of the correction or other adjustment on per line item or per share amount basis. This table uses as its line items financial statement line items that are affected by prior period adjustments.",
        "label": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]",
        "terseLabel": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]"
       }
      }
     },
     "localname": "ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfCashFlowsAmountsDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock": {
     "auth_ref": [
      "r128",
      "r129",
      "r130"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made.",
        "label": "Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]",
        "terseLabel": "Schedule of Revision of Prior Period Financial Statements"
       }
      }
     },
     "localname": "ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": {
     "auth_ref": [
      "r209",
      "r214"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Schedule of Finite-Lived Intangible Assets [Table]",
        "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]"
       }
      }
     },
     "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": {
     "auth_ref": [
      "r209",
      "r214"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.",
        "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]",
        "terseLabel": "Schedule of Finite-Lived Intangible Assets"
       }
      }
     },
     "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock": {
     "auth_ref": [
      "r427"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.",
        "label": "Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]",
        "terseLabel": "Schedule of Future Minimum Rental Payments for Operating Leases"
       }
      }
     },
     "localname": "ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfGoodwillTable": {
     "auth_ref": [
      "r203",
      "r205"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of goodwill and the changes during the year due to acquisition, sale, impairment or for other reasons.",
        "label": "Schedule of Goodwill [Table]",
        "terseLabel": "Schedule of Goodwill [Table]"
       }
      }
     },
     "localname": "ScheduleOfGoodwillTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfGoodwillTextBlock": {
     "auth_ref": [
      "r203",
      "r205"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.",
        "label": "Schedule of Goodwill [Table Text Block]",
        "terseLabel": "Schedule of Goodwill"
       }
      }
     },
     "localname": "ScheduleOfGoodwillTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/GoodwillTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock": {
     "auth_ref": [
      "r307"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the changes in outstanding nonvested performance-based units.",
        "label": "Schedule of Nonvested Performance-based Units Activity [Table Text Block]",
        "terseLabel": "Schedule of Nonvested Performance-based Units Activity"
       }
      }
     },
     "localname": "ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": {
     "auth_ref": [
      "r36",
      "r226"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table]",
        "terseLabel": "Property, Plant and Equipment [Table]"
       }
      }
     },
     "localname": "ScheduleOfPropertyPlantAndEquipmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesSummaryOfPropertyAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": {
     "auth_ref": [
      "r145"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.",
        "label": "Quarterly Financial Information [Table Text Block]",
        "terseLabel": "Quarterly Financial Information"
       }
      }
     },
     "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": {
     "auth_ref": [
      "r114",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of quantitative and qualitative information pertaining to related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Schedule of Related Party Transactions, by Related Party [Table]",
        "terseLabel": "Schedule of Related Party Transactions, by Related Party [Table]"
       }
      }
     },
     "localname": "ScheduleOfRelatedPartyTransactionsByRelatedPartyTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRestructuringAndRelatedCostsTable": {
     "auth_ref": [
      "r235",
      "r236",
      "r240"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Table presenting the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and the amount of and periodic changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost by type of restructuring.",
        "label": "Schedule of Restructuring and Related Costs [Table]",
        "terseLabel": "Schedule of Restructuring and Related Costs [Table]"
       }
      }
     },
     "localname": "ScheduleOfRestructuringAndRelatedCostsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock": {
     "auth_ref": [
      "r235",
      "r236",
      "r240"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.",
        "label": "Restructuring and Related Costs [Table Text Block]",
        "terseLabel": "Schedule of Restructuring Charges"
       }
      }
     },
     "localname": "ScheduleOfRestructuringAndRelatedCostsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": {
     "auth_ref": [
      "r158",
      "r164",
      "r165",
      "r166",
      "r203"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table disclosing the profit or loss and total assets for each reportable segment of the entity. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table]",
        "terseLabel": "Schedule of Segment Reporting Information, by Segment [Table]"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": {
     "auth_ref": [
      "r158",
      "r164",
      "r165",
      "r166",
      "r203"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table Text Block]",
        "verboseLabel": "Schedule of Segment Reporting Information, by Segment"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r294",
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about share-based payment arrangement.",
        "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]",
        "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": {
     "auth_ref": [
      "r299",
      "r312",
      "r315"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.",
        "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]",
        "terseLabel": "Schedule of Share-based Compensation, Stock Options, Activity"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": {
     "auth_ref": [
      "r317"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.",
        "label": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]",
        "terseLabel": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions"
       }
      }
     },
     "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.",
        "label": "Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]",
        "terseLabel": "Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity"
       }
      }
     },
     "localname": "ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": {
     "auth_ref": [
      "r214"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.",
        "label": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]",
        "terseLabel": "Schedule of Future Amortization Expense"
       }
      }
     },
     "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SegmentDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Segments [Domain]",
        "terseLabel": "Segments [Domain]"
       }
      }
     },
     "localname": "SegmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SegmentReportingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Segment Reporting [Abstract]"
       }
      }
     },
     "localname": "SegmentReportingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SegmentReportingDisclosureTextBlock": {
     "auth_ref": [
      "r169"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.",
        "label": "Segment Reporting Disclosure [Text Block]",
        "verboseLabel": "Business Segments"
       }
      }
     },
     "localname": "SegmentReportingDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SegmentReportingInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Segment Reporting Information [Line Items]",
        "terseLabel": "Segment Reporting Information [Line Items]"
       }
      }
     },
     "localname": "SegmentReportingInformationLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r77",
      "r190"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.",
        "label": "Selling, General and Administrative Expense",
        "terseLabel": "Selling, general and administrative expenses"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedStatementsOfIncomeAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpensesMember": {
     "auth_ref": [
      "r82"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing selling, general and administrative expense.",
        "label": "Selling, General and Administrative Expenses [Member]",
        "terseLabel": "Selling, General and Administrative Expenses"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpensesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Noncash Expense",
        "verboseLabel": "Stock-based compensation expense"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1": {
     "auth_ref": [
      "r295"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period",
        "terseLabel": "Award vesting period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]",
        "terseLabel": "Weighted- Average Exercise Price"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period",
        "negatedTerseLabel": "Forfeited (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r311"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value",
        "terseLabel": "Forfeited (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r309"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period",
        "terseLabel": "Granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r309"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Granted (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r308"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
        "periodEndLabel": "Nonvested shares, ending balance (in shares)",
        "periodStartLabel": "Nonvested shares, beginning balance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r308"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Nonvested shares, ending balance (in USD per share)",
        "periodStartLabel": "Nonvested shares, beginning balance (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms",
        "terseLabel": "Outstanding weighted average contractual life (in years)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": {
     "auth_ref": [
      "r310"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period",
        "negatedLabel": "Vested (in shares)",
        "negatedTerseLabel": "Vested and transferred to unrestricted common stock (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": {
     "auth_ref": [
      "r314"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value",
        "terseLabel": "Equity instruments other than options, vested in period, fair value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r310"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Vested and transferred to unrestricted common stock (in USD per share)",
        "verboseLabel": "Vested (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": {
     "auth_ref": [
      "r320"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate",
        "verboseLabel": "Dividend yield"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": {
     "auth_ref": [
      "r319"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate",
        "verboseLabel": "Volatility"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": {
     "auth_ref": [
      "r321"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate",
        "verboseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised": {
     "auth_ref": [
      "r304"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of non-option equity instruments exercised by participants.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised",
        "terseLabel": "Exercised (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations": {
     "auth_ref": [
      "r306"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares under non-option equity instrument agreements that were either cancelled or expired.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations",
        "terseLabel": "Forfeited/Expired (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted": {
     "auth_ref": [
      "r303"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Net number of non-option equity instruments granted to participants.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted",
        "terseLabel": "Granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber": {
     "auth_ref": [
      "r300",
      "r302"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of equity instruments other than options outstanding, including both vested and non-vested instruments.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]",
        "terseLabel": "Outstanding SARs"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of additional shares authorized for issuance under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized",
        "terseLabel": "Shares authorized (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": {
     "auth_ref": [
      "r296"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares authorized for issuance under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized",
        "terseLabel": "Additional shares authorized (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]",
        "terseLabel": "Aggregate Intrinsic Value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": {
     "auth_ref": [
      "r314"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value",
        "verboseLabel": "Exercised"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period",
        "negatedLabel": "Forfeited (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Gross number of share options (or share units) granted during the period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross",
        "terseLabel": "Granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r313"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Grants in period (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": {
     "auth_ref": [
      "r325"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value",
        "periodEndLabel": "Ending balance, Outstanding",
        "periodStartLabel": "Beginning balance, Outstanding"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": {
     "auth_ref": [
      "r301",
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of options outstanding, including both vested and non-vested options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number",
        "periodEndLabel": "Ending balance, Outstanding (in shares)",
        "periodStartLabel": "Beginning balance, Outstanding (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]",
        "terseLabel": "Outstanding Options"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r300"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price",
        "periodEndLabel": "Ending balance, Outstanding (in USD per share)",
        "periodStartLabel": "Beginning balance, Outstanding (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]",
        "terseLabel": "Weighted- Average Exercise Price"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue": {
     "auth_ref": [
      "r315"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value",
        "terseLabel": "Options vested and exercisable"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number",
        "verboseLabel": "Options vested and exercisable (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price",
        "terseLabel": "Options vested and exercisable (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r292",
      "r297"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]",
        "terseLabel": "Award Type [Domain]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanPerformanceShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanRestrictedShareUnitActivityDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price",
        "terseLabel": "Exercised (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price",
        "terseLabel": "Forfeited (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price",
        "terseLabel": "Granted (in USD per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": {
     "auth_ref": [
      "r107",
      "r294",
      "r298"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.",
        "label": "Share-based Payment Arrangement [Policy Text Block]",
        "verboseLabel": "Stock-Based Compensation"
       }
      }
     },
     "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SharePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Price of a single share of a number of saleable stocks of a company.",
        "label": "Share Price",
        "terseLabel": "Share price (in USD per share)"
       }
      }
     },
     "localname": "SharePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]",
        "terseLabel": "Aggregate Intrinsic Value"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": {
     "auth_ref": [
      "r318",
      "r337"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term",
        "terseLabel": "Term of award",
        "verboseLabel": "Expected life"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": {
     "auth_ref": [
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term",
        "terseLabel": "Weighted average remaining contractual life, exercisable"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term",
        "terseLabel": "Weighted average remaining contractual life, vested"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares issued which are neither cancelled nor held in the treasury.",
        "label": "Shares, Outstanding",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)"
       }
      }
     },
     "localname": "SharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShortTermLeaseCost": {
     "auth_ref": [
      "r439",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of short-term lease cost, excluding expense for lease with term of one month or less.",
        "label": "Short-term Lease, Cost",
        "terseLabel": "Short-term lease cost"
       }
      }
     },
     "localname": "ShortTermLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r124"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.",
        "label": "Significant Accounting Policies [Text Block]",
        "verboseLabel": "Summary of Significant Accounting Policies"
       }
      }
     },
     "localname": "SignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_StateAdministrationOfTaxationChinaMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government of China.",
        "label": "State Administration of Taxation, China [Member]",
        "terseLabel": "China tax authority"
       }
      }
     },
     "localname": "StateAdministrationOfTaxationChinaMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StateAndLocalJurisdictionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of a state or local government entitled to levy and collect income taxes from the entity.",
        "label": "State and Local Jurisdiction [Member]",
        "terseLabel": "State and Local Jurisdiction"
       }
      }
     },
     "localname": "StateAndLocalJurisdictionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementBusinessSegmentsAxis": {
     "auth_ref": [
      "r1",
      "r164",
      "r203",
      "r229",
      "r234",
      "r243",
      "r497"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by business segments.",
        "label": "Segments [Axis]",
        "terseLabel": "Segments [Axis]"
       }
      }
     },
     "localname": "StatementBusinessSegmentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/BusinessSegmentsAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsLongLivedAssetsBySegmentDetails",
      "http://www.inwk.com/role/BusinessSegmentsNarrativeDetails",
      "http://www.inwk.com/role/BusinessSegmentsRevenueBySegmentDetails",
      "http://www.inwk.com/role/GoodwillNarrativeDetails",
      "http://www.inwk.com/role/GoodwillScheduleOfGoodwillDetails",
      "http://www.inwk.com/role/OtherIntangibleAssetsNarrativeDetails",
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringCostsBySegmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r47",
      "r262"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockAppreciationRightsSARSMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Right to receive cash or shares equal to appreciation of predetermined number of grantor's shares during predetermined time period.",
        "label": "Stock Appreciation Rights (SARs) [Member]",
        "terseLabel": "Stock Appreciation Rights (SARs)"
       }
      }
     },
     "localname": "StockAppreciationRightsSARSMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/StockBasedCompensationPlanNarrativeDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanOptionAssumptionsDetails",
      "http://www.inwk.com/role/StockBasedCompensationPlanSarActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": {
     "auth_ref": [
      "r23",
      "r24",
      "r267"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.",
        "label": "Stock Issued During Period, Shares, Acquisitions",
        "terseLabel": "Issuance of treasury shares as consideration for acquisition (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesAcquisitions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": {
     "auth_ref": [
      "r23",
      "r24",
      "r262",
      "r267",
      "r304"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of share options (or share units) exercised during the current period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period",
        "negatedTerseLabel": "Exercised (in shares)",
        "terseLabel": "Issuance of common stock upon exercise of stock awards (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/StockBasedCompensationPlanStockOptionActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueAcquisitions": {
     "auth_ref": [
      "r47",
      "r262",
      "r267"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of stock issued pursuant to acquisitions during the period.",
        "label": "Stock Issued During Period, Value, Acquisitions",
        "verboseLabel": "Issuance of treasury shares as consideration for acquisition"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueAcquisitions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": {
     "auth_ref": [
      "r47",
      "r262",
      "r267"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of stock issued as a result of the exercise of stock options.",
        "label": "Stock Issued During Period, Value, Stock Options Exercised",
        "verboseLabel": "Issuance of common stock upon exercise of stock awards"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchaseProgramAuthorizedAmount1": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of stock repurchase plan authorized.",
        "label": "Stock Repurchase Program, Authorized Amount",
        "terseLabel": "Authorized share repurchase"
       }
      }
     },
     "localname": "StockRepurchaseProgramAuthorizedAmount1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchaseProgramPeriodInForce1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Stock Repurchase Program, Period in Force",
        "terseLabel": "Term of share repurchase program"
       }
      }
     },
     "localname": "StockRepurchaseProgramPeriodInForce1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_StockRepurchasedDuringPeriodShares": {
     "auth_ref": [
      "r23",
      "r24",
      "r262",
      "r267"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.",
        "label": "Stock Repurchased During Period, Shares",
        "terseLabel": "Acquisition of treasury shares (in shares)"
       }
      }
     },
     "localname": "StockRepurchasedDuringPeriodShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockRepurchasedDuringPeriodValue": {
     "auth_ref": [
      "r23",
      "r24",
      "r262",
      "r267"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.",
        "label": "Stock Repurchased During Period, Value",
        "negatedTerseLabel": "Acquisition of treasury shares",
        "terseLabel": "Value of shares repurchased"
       }
      }
     },
     "localname": "StockRepurchasedDuringPeriodValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r24",
      "r29",
      "r30",
      "r178"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders' Equity Attributable to Parent",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Total stockholders' equity",
        "totalLabel": "Total stockholders' equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Stockholders' Equity Attributable to Parent [Abstract]",
        "verboseLabel": "Stockholders' equity:"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r271"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders' Equity Note Disclosure [Text Block]",
        "terseLabel": "Share Repurchase Program"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ShareRepurchaseProgram"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubleaseIncome": {
     "auth_ref": [
      "r441",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of sublease income excluding finance and operating lease expense.",
        "label": "Sublease Income",
        "negatedTerseLabel": "Less: Sublease income"
       }
      }
     },
     "localname": "SubleaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SubsequentEventMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event [Member]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventTypeAxis": {
     "auth_ref": [
      "r457"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Axis]",
        "terseLabel": "Subsequent Event Type [Axis]"
       }
      }
     },
     "localname": "SubsequentEventTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeDomain": {
     "auth_ref": [
      "r457"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Domain]",
        "terseLabel": "Subsequent Event Type [Domain]"
       }
      }
     },
     "localname": "SubsequentEventTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SummaryOfIncomeTaxContingenciesTextBlock": {
     "auth_ref": [
      "r357",
      "r363",
      "r365"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.",
        "label": "Summary of Income Tax Contingencies [Table Text Block]",
        "terseLabel": "Summary of Uncertain Tax Positions"
       }
      }
     },
     "localname": "SummaryOfIncomeTaxContingenciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental disclosure of cash flow information:"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TangibleAssetImpairmentCharges": {
     "auth_ref": [
      "r0",
      "r227"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.",
        "label": "Tangible Asset Impairment Charges",
        "terseLabel": "Long-lived asset impairment charge"
       }
      }
     },
     "localname": "TangibleAssetImpairmentCharges",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/PropertyAndEquipmentNarrativeDetails",
      "http://www.inwk.com/role/QuarterlySelectedFinancialInformationUnauditedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TradeAndOtherAccountsReceivablePolicy": {
     "auth_ref": [
      "r172",
      "r173",
      "r174",
      "r175",
      "r177",
      "r179"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for accounts receivable.",
        "label": "Accounts Receivable [Policy Text Block]",
        "terseLabel": "Accounts Receivable"
       }
      }
     },
     "localname": "TradeAndOtherAccountsReceivablePolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy": {
     "auth_ref": [
      "r180"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for treatment of receivables that are billable but have not been billed as of the balance sheet date.",
        "label": "Trade and Other Accounts Receivable, Unbilled Receivables, Policy [Policy Text Block]",
        "terseLabel": "Other Receivables"
       }
      }
     },
     "localname": "TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_TradeNamesMember": {
     "auth_ref": [
      "r389"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Rights acquired through registration of a business name to gain or protect exclusive use thereof.",
        "label": "Trade Names [Member]",
        "terseLabel": "Trade names"
       }
      }
     },
     "localname": "TradeNamesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/OtherIntangibleAssetsScheduleOfIntangibleAssetsDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockAcquiredAverageCostPerShare": {
     "auth_ref": [
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total cost of shares repurchased divided by the total number of shares repurchased.",
        "label": "Treasury Stock Acquired, Average Cost Per Share",
        "terseLabel": "Cost per share acquired (in USD per share)"
       }
      }
     },
     "localname": "TreasuryStockAcquiredAverageCostPerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ShareRepurchaseProgramDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_TreasuryStockMember": {
     "auth_ref": [
      "r46",
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Shares of an entity that have been repurchased by the entity. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.",
        "label": "Treasury Stock [Member]",
        "terseLabel": "Treasury Stock"
       }
      }
     },
     "localname": "TreasuryStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TreasuryStockShares": {
     "auth_ref": [
      "r46",
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.",
        "label": "Treasury Stock, Shares",
        "verboseLabel": "Treasury stock at cost, shares (in shares)"
       }
      }
     },
     "localname": "TreasuryStockShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_TreasuryStockValue": {
     "auth_ref": [
      "r46",
      "r268",
      "r269"
     ],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.",
        "label": "Treasury Stock, Value",
        "negatedLabel": "Treasury stock at cost, 12,688 and 12,688 shares, respectively"
       }
      }
     },
     "localname": "TreasuryStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TypeOfAdoptionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Adoption and early adoption of sources of change to generally accepted accounting principles (GAAP) in the United States. The FASB released the FASB Accounting Standards Codification as the authoritative source of literature effective for interim and annual periods ending after September 15, 2009. As part of the Codification process, the FASB issues Accounting Standards Updates to amend the Codification but otherwise the Accounting Standards Updates are not authoritative in their own right. All previous accounting standards (such as FASB Statements of Financial Accounting Standards, FASB Interpretations, FASB Staff Positions, Emerging Issues Task Force Consensuses, other pronouncements of the FASB or other designated bodies, or other forms of GAAP are considered accounting pronouncements) were superseded upon the adoption of the Codification. For an interim period, references to the superseded standards are included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.",
        "label": "Type of Adoption [Domain]",
        "terseLabel": "Type of Adoption [Domain]"
       }
      }
     },
     "localname": "TypeOfAdoptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfStockholdersEquity",
      "http://www.inwk.com/role/LeasesNarrativeDetails",
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TypeOfRestructuringDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identification of the types of restructuring costs.",
        "label": "Type of Restructuring [Domain]",
        "terseLabel": "Type of Restructuring [Domain]"
       }
      }
     },
     "localname": "TypeOfRestructuringDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesNarrativeDetails",
      "http://www.inwk.com/role/RestructuringActivitiesAndChargesScheduleOfRestructuringChargesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UnbilledReceivablesCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.inwk.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.",
        "label": "Unbilled Receivables, Current",
        "verboseLabel": "Unbilled revenue"
       }
      }
     },
     "localname": "UnbilledReceivablesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedBalanceSheets",
      "http://www.inwk.com/role/RevisionOfPriorPeriodFinancialStatementsRevisedConsolidatedBalanceSheetAmountsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UndistributedEarningsOfForeignSubsidiaries": {
     "auth_ref": [
      "r347",
      "r387",
      "r486",
      "r499"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.",
        "label": "Undistributed Earnings of Foreign Subsidiaries",
        "terseLabel": "Undistributed earnings for foreign operations"
       }
      }
     },
     "localname": "UndistributedEarningsOfForeignSubsidiaries",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefits": {
     "auth_ref": [
      "r348",
      "r359"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unrecognized tax benefits.",
        "label": "Unrecognized Tax Benefits",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Unrecognized tax benefits"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails",
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions": {
     "auth_ref": [
      "r361"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.",
        "label": "Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions",
        "negatedTerseLabel": "Additions (subtractions) based on tax positions related to the current year"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions": {
     "auth_ref": [
      "r360"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.",
        "label": "Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions",
        "negatedTerseLabel": "Additions (subtractions) based on tax positions related to the prior year"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense": {
     "auth_ref": [
      "r356"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.",
        "label": "Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense",
        "terseLabel": "Interest and penalties"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations": {
     "auth_ref": [
      "r362"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.",
        "label": "Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations",
        "terseLabel": "Statute of limitations lapses"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesUncertainTaxPositionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r148",
      "r149",
      "r150",
      "r151",
      "r154",
      "r155",
      "r156"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use of Estimates, Policy [Policy Text Block]",
        "terseLabel": "Preparation of Financial Statements and Use of Estimates"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/SummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount": {
     "auth_ref": [
      "r350"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.",
        "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount",
        "terseLabel": "Increase in valuation allowance"
       }
      }
     },
     "localname": "ValuationAllowanceDeferredTaxAssetChangeInAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/IncomeTaxesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableLeaseCost": {
     "auth_ref": [
      "r440",
      "r447"
     ],
     "calculation": {
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
        "label": "Variable Lease, Cost",
        "terseLabel": "Variable lease cost"
       }
      }
     },
     "localname": "VariableLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LeasesComponentsOfLeaseCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableRateAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of variable rate.",
        "label": "Variable Rate [Axis]",
        "terseLabel": "Variable Rate [Axis]"
       }
      }
     },
     "localname": "VariableRateAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableRateDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.",
        "label": "Variable Rate [Domain]",
        "terseLabel": "Variable Rate [Domain]"
       }
      }
     },
     "localname": "VariableRateDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/LongTermDebtNarrativeDetails",
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r133",
      "r139"
     ],
     "calculation": {
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.",
        "label": "Weighted Average Number of Shares Outstanding, Diluted",
        "terseLabel": "Weighted average shares outstanding - diluted (in shares)",
        "totalLabel": "Weighted average shares outstanding - diluted (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r132",
      "r139"
     ],
     "calculation": {
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.",
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "terseLabel": "Weighted average shares outstanding - basic (in shares)",
        "totalLabel": "Weighted average shares outstanding - basic (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/ConsolidatedStatementsOfOperations",
      "http://www.inwk.com/role/LossEarningsPerShareScheduleOfEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WriteOffOfDeferredDebtIssuanceCost": {
     "auth_ref": [
      "r80"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.",
        "label": "Write off of Deferred Debt Issuance Cost",
        "terseLabel": "Write off of deferred debt issuance cost"
       }
      }
     },
     "localname": "WriteOffOfDeferredDebtIssuanceCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.inwk.com/role/RevolvingCreditFacilitiesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    }
   },
   "unitCount": 8
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6904-107765"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4273-108586"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(e),(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(h)(1)(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(i)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(i)(4))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04(a))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-09)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "250",
   "URI": "http://asc.fasb.org/topic&trid=2122394"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1448-109256"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1505-109256"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1252-109256"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1500-109256"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1930-109256"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1337-109256"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(11))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117327953&loc=d3e4984-109258"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e543-108305"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "270",
   "URI": "http://asc.fasb.org/topic&trid=2126967"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "275",
   "URI": "http://asc.fasb.org/topic&trid=2134479"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "280",
   "URI": "http://asc.fasb.org/topic&trid=2134510"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(17))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4531-111522"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e4975-111524"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5033-111524"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5093-111524"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "310",
   "URI": "http://asc.fasb.org/topic&trid=2196771"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33775-111570"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118950378&loc=SL82887624-210437"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116846819&loc=d3e3927-108312"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4556-108314"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.BB)",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "10",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/subtopic&trid=2144439"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(26)(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(3)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "((a)(1),(b))",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(2)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(3)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(26)(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "40",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=118172244&loc=d3e17916-109280"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "50",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=16397303&loc=d3e19379-109286"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "350",
   "URI": "http://asc.fasb.org/topic&trid=2144416"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "360",
   "URI": "http://asc.fasb.org/topic&trid=2155823"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.3)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.3)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.4(b)(2))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.4(b))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.4)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(b)(1))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(b))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(d))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14615-108349"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14394-108349"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3)(a)(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14453-108349"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14472-108349"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12053-110248"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "50",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "705",
   "URI": "http://asc.fasb.org/topic&trid=2122478"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "710",
   "URI": "http://asc.fasb.org/topic&trid=2127225"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "712",
   "URI": "http://asc.fasb.org/topic&trid=2197446"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(n)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "70",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "715",
   "URI": "http://asc.fasb.org/topic&trid=2235017"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b),(f)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)-(4)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(4)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79507997-165333"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79507997-165333"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508013-165333"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508013-165333"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508029-165333"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508029-165333"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508043-165333"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508043-165333"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508057-165333"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116863282&loc=SL79508057-165333"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.D.2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.F)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "740",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116859624&loc=d3e23524-113945"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "35",
   "Subparagraph": "(a)",
   "Topic": "720",
   "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "35",
   "Subparagraph": "(b)",
   "Topic": "720",
   "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28200-109314"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32059-109318"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32123-109318"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32247-109318"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32280-109318"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e31931-109318"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.14)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(4)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b),(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117331771&loc=SL96870463-158277"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117331771&loc=SL96870463-158277"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 6.I.7)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e39076-109324"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "30",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=65884525&loc=d3e40913-109327"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "740",
   "URI": "http://asc.fasb.org/topic&trid=2144680"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(b),22(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5333-128473"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "38",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5504-128473"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=d3e5283-111683"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "15",
   "Topic": "815",
   "URI": "http://asc.fasb.org/subtopic&trid=2229187"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(1)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "20",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118948100&loc=d3e30304-110892"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=109240200&loc=d3e30690-110894"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=109240200&loc=d3e30700-110894"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b,d)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(Note 3)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888369&loc=SL77918431-209957"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918666-209980"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(4)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888251"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "850",
   "URI": "http://asc.fasb.org/topic&trid=2122745"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29,30)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "340",
   "Topic": "928",
   "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(1)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(2)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(15)(2))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.9)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r485": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r486": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6479915&loc=d3e66715-112838"
  },
  "r487": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(15)(b)(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r488": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r489": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(10))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r490": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r491": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r492": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r493": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r494": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r495": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r496": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r497": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r498": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r499": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6487024&loc=d3e29054-158556"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.8)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r500": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "825",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195"
  },
  "r501": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "220",
   "Subparagraph": "(k)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262090&loc=SL114874205-224268"
  },
  "r502": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.6-07.1(c))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272"
  },
  "r503": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.6-07.2(a),(b),(c),(d))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=116637345&loc=SL114874292-224272"
  },
  "r504": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "310",
   "Subparagraph": "(SX 210.12-29(Footnote 4))",
   "Topic": "948",
   "URI": "http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014"
  },
  "r505": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650"
  },
  "r506": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 2))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
  },
  "r507": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r508": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-23"
  },
  "r509": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r510": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1-"
  },
  "r511": {
   "Name": "Forms 10-K, 20-F, 40-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "15",
   "Subsection": "d-1"
  },
  "r512": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r513": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(210.5-03(11))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(5))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(6))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(8))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1(e))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1,2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2(a),(d))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7(b))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6787-107765"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.8)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6801-107765"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  }
 },
 "version": "2.1"
}
