{ "instance": { "a201910-k.htm": { "axisCustom": 3, "axisStandard": 36, "contextCount": 460, "dts": { "calculationLink": { "local": [ "grpn-20191231_cal.xml" ] }, "definitionLink": { "local": [ "grpn-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": [ "a201910-k.htm" ] }, "labelLink": { "local": [ "grpn-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", "http://xbrl.fasb.org/srt/2019/elts/srt-doc-2019-01-31.xml" ] }, "presentationLink": { "local": [ "grpn-20191231_pre.xml" ] }, "referenceLink": { "remote": [ "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml", "http://xbrl.fasb.org/srt/2019/elts/srt-ref-2019-01-31.xml", "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml" ] }, "schema": { "local": [ "grpn-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/invest/2013/invest-2013-01-31.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/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd", "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd" ] } }, "elementCount": 948, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2019-01-31": 21, "http://www.groupon.com/20191231": 2, "http://xbrl.sec.gov/dei/2019-01-31": 5, "total": 28 }, "keyCustom": 81, "keyStandard": 618, "memberCustom": 25, "memberStandard": 76, "nsprefix": "grpn", "nsuri": "http://www.groupon.com/20191231", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-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 PAGE", "role": "http://www.groupon.com/role/CoverPage", "shortName": "COVER PAGE", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-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": "a201910-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": "2102100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES", "role": "http://www.groupon.com/role/SummaryOfSignificantAccountingPolicies", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R100": { "firstAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:VariableInterestEntityOwnershipPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414401 - Disclosure - VARIABLE INTEREST ENTITY (Details)", "role": "http://www.groupon.com/role/VariableInterestEntityDetails", "shortName": "VARIABLE INTEREST ENTITY (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:VariableInterestEntityOwnershipPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R101": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:FairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquityMethodInvestments", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415402 - Disclosure - FAIR VALUE MEASUREMENTS - Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs (Details)", "role": "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "shortName": "FAIR VALUE MEASUREMENTS - Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4_us-gaap_FairValueByMeasurementFrequencyAxis_us-gaap_FairValueMeasurementsRecurringMember", "decimals": "-3", "lang": null, "name": "us-gaap:EquityMethodInvestments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R102": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:EarningsPerShareDiluted", "reportCount": 1, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415402 - Disclosure - INCOME (LOSS) PER SHARE - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share (Details)", "role": "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "shortName": "INCOME (LOSS) PER SHARE - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD_us-gaap_StatementClassOfStockAxis_us-gaap_RestrictedStockMember", "decimals": "0", "lang": null, "name": "us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R103": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415403 - Disclosure - FAIR VALUE MEASUREMENTS - Additional Information (Details)", "role": "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "shortName": "FAIR VALUE MEASUREMENTS - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:FairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R104": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415403 - Disclosure - INCOME (LOSS) PER SHARE - Schedule of Weighted-Average Potentially Dilutive Instruments (Details)", "role": "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "shortName": "INCOME (LOSS) PER SHARE - Schedule of Weighted-Average Potentially Dilutive Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "0", "lang": null, "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R105": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecurities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415404 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details)", "role": "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "shortName": "FAIR VALUE MEASUREMENTS - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R106": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416402 - Disclosure - SEGMENT INFORMATION - Additional Information (Details)", "role": "http://www.groupon.com/role/SegmentInformationAdditionalInformationDetails", "shortName": "SEGMENT INFORMATION - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R107": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensation", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416403 - Disclosure - SEGMENT INFORMATION - Schedule of Revenue by Segment (Details)", "role": "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "shortName": "SEGMENT INFORMATION - Schedule of Revenue by Segment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD_us-gaap_StatementBusinessSegmentsAxis_srt_NorthAmericaMember", "decimals": "-3", "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R108": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:GrossProfit", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416404 - Disclosure - SEGMENT INFORMATION - Schedule of Gross Profit by Segment (Details)", "role": "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "shortName": "SEGMENT INFORMATION - Schedule of Gross Profit by Segment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD_us-gaap_StatementBusinessSegmentsAxis_srt_NorthAmericaMember", "decimals": "-3", "lang": null, "name": "us-gaap:GrossProfit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R109": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416405 - Disclosure - SEGMENT INFORMATION - Schedule of Operating Income by Segment (Details)", "role": "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "shortName": "SEGMENT INFORMATION - Schedule of Operating Income by Segment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD_us-gaap_StatementBusinessSegmentsAxis_srt_NorthAmericaMember", "decimals": "-3", "lang": null, "name": "us-gaap:OperatingIncomeLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2103100 - Disclosure - DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS", "role": "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositions", "shortName": "DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R110": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-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": "2416406 - Disclosure - SEGMENT INFORMATION - Schedule of Total Assets, Tangible Property and Equipment, Depreciation and Amortization and Property Additions by Segment (Details)", "role": "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails", "shortName": "SEGMENT INFORMATION - Schedule of Total Assets, Tangible Property and Equipment, Depreciation and Amortization and Property Additions by Segment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:DepreciationAndAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R111": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:OperatingLeaseLeaseIncomeTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceived", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417401 - Disclosure - RELATED PARTY TRANSACTION (Details)", "role": "http://www.groupon.com/role/RelatedPartyTransactionDetails", "shortName": "RELATED PARTY TRANSACTION (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_grpn_UptakeMember", "decimals": "-5", "lang": null, "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceived", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R112": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Revenues", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418402 - Disclosure - QUARTERLY RESULTS (UNAUDITED) (Details)", "role": "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails", "shortName": "QUARTERLY RESULTS (UNAUDITED) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "lang": null, "name": "us-gaap:CostOfRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R113": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RestructuringCharges", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418403 - Disclosure - QUARTERLY RESULTS (UNAUDITED) - Additional Information (Details)", "role": "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "shortName": "QUARTERLY RESULTS (UNAUDITED) - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2018Q3QTD_srt_LitigationCaseAxis_grpn_IBMPatentLitigationCaseMember", "decimals": "-5", "lang": null, "name": "us-gaap:GainLossRelatedToLitigationSettlement", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R114": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "D2020Q1Jan20-20_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember", "decimals": "2", "first": true, "lang": null, "name": "grpn:OtherEquityMethodInvestmentsOwnershipPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2419401 - Disclosure - SUBSEQUENT EVENTS (Details)", "role": "http://www.groupon.com/role/SubsequentEventsDetails", "shortName": "SUBSEQUENT EVENTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "D2020Q1Jan20-20_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember", "decimals": "2", "first": true, "lang": null, "name": "grpn:OtherEquityMethodInvestmentsOwnershipPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R115": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2018Q4_us-gaap_ValuationAllowancesAndReservesTypeAxis_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "", "isDefault": "false", "longName": "2420401 - Schedule - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)", "role": "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "shortName": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2016Q4_us-gaap_ValuationAllowancesAndReservesTypeAxis_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember", "decimals": "-3", "lang": null, "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104100 - Disclosure - BUSINESS COMBINATIONS", "role": "http://www.groupon.com/role/BusinessCombinations", "shortName": "BUSINESS COMBINATIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2105100 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET", "role": "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNet", "shortName": "PROPERTY, EQUIPMENT AND SOFTWARE, NET", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2106100 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssets", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CostAndEquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2106100 - Disclosure - INVESTMENTS", "role": "http://www.groupon.com/role/Investments", "shortName": "INVESTMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CostAndEquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2107100 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformation", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2108100 - Disclosure - FINANCING ARRANGEMENTS", "role": "http://www.groupon.com/role/FinancingArrangements", "shortName": "FINANCING ARRANGEMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2109100 - Disclosure - LEASES", "role": "http://www.groupon.com/role/Leases", "shortName": "LEASES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2110100 - Disclosure - COMMITMENTS AND CONTINGENCIES", "role": "http://www.groupon.com/role/CommitmentsAndContingencies", "shortName": "COMMITMENTS AND CONTINGENCIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001000 - Statement - CONSOLIDATED BALANCE SHEETS", "role": "http://www.groupon.com/role/ConsolidatedBalanceSheets", "shortName": "CONSOLIDATED BALANCE SHEETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:AccountsReceivableNetCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2110100 - Disclosure - STOCKHOLDERS' EQUITY", "role": "http://www.groupon.com/role/StockholdersEquity", "shortName": "STOCKHOLDERS' EQUITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2111100 - Disclosure - COMPENSATION ARRANGEMENTS", "role": "http://www.groupon.com/role/CompensationArrangements", "shortName": "COMPENSATION ARRANGEMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2111100 - Disclosure - REVENUE RECOGNITION", "role": "http://www.groupon.com/role/RevenueRecognition", "shortName": "REVENUE RECOGNITION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2112100 - Disclosure - RESTRUCTURING", "role": "http://www.groupon.com/role/Restructuring", "shortName": "RESTRUCTURING", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2113100 - Disclosure - INCOME TAXES", "role": "http://www.groupon.com/role/IncomeTaxes", "shortName": "INCOME TAXES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2114100 - Disclosure - VARIABLE INTEREST ENTITY", "role": "http://www.groupon.com/role/VariableInterestEntity", "shortName": "VARIABLE INTEREST ENTITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-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": "2115100 - Disclosure - FAIR VALUE MEASUREMENTS", "role": "http://www.groupon.com/role/FairValueMeasurements", "shortName": "FAIR VALUE MEASUREMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-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": "2115100 - Disclosure - INCOME (LOSS) PER SHARE", "role": "http://www.groupon.com/role/IncomeLossPerShare", "shortName": "INCOME (LOSS) PER SHARE", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2116100 - Disclosure - SEGMENT INFORMATION", "role": "http://www.groupon.com/role/SegmentInformation", "shortName": "SEGMENT INFORMATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-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": "2117100 - Disclosure - RELATED PARTY TRANSACTION", "role": "http://www.groupon.com/role/RelatedPartyTransaction", "shortName": "RELATED PARTY TRANSACTION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:TreasuryStockShares", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001501 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)", "role": "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "shortName": "CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R30": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-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": "2118100 - Disclosure - QUARTERLY RESULTS (UNAUDITED)", "role": "http://www.groupon.com/role/QuarterlyResultsUnaudited", "shortName": "QUARTERLY RESULTS (UNAUDITED)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2119100 - Disclosure - SUBSEQUENT EVENTS", "role": "http://www.groupon.com/role/SubsequentEvents", "shortName": "SUBSEQUENT EVENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "", "isDefault": "false", "longName": "2120100 - Schedule - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS", "role": "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccounts", "shortName": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)", "role": "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2302302 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)", "role": "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesTables", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "grpn:ScheduleofGainLossonBusinessDispositionsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2303301 - Disclosure - DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS (Tables)", "role": "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsTables", "shortName": "DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "grpn:ScheduleofGainLossonBusinessDispositionsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2304301 - Disclosure - BUSINESS COMBINATIONS (Tables)", "role": "http://www.groupon.com/role/BusinessCombinationsTables", "shortName": "BUSINESS COMBINATIONS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2305301 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET (Tables)", "role": "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetTables", "shortName": "PROPERTY, EQUIPMENT AND SOFTWARE, NET (Tables)", "subGroupType": "tables", "uniqueAnchor": null }, "R38": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2306301 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsTables", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2306301 - Disclosure - INVESTMENTS (Tables)", "role": "http://www.groupon.com/role/InvestmentsTables", "shortName": "INVESTMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS", "role": "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "shortName": "CONSOLIDATED STATEMENTS OF OPERATIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:OperatingExpenses", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2307301 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION (Tables)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConvertibleDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2308301 - Disclosure - FINANCING ARRANGEMENTS (Tables)", "role": "http://www.groupon.com/role/FinancingArrangementsTables", "shortName": "FINANCING ARRANGEMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConvertibleDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2309301 - Disclosure - LEASES (Tables)", "role": "http://www.groupon.com/role/LeasesTables", "shortName": "LEASES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermPurchaseCommitmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2310301 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables)", "role": "http://www.groupon.com/role/CommitmentsAndContingenciesTables", "shortName": "COMMITMENTS AND CONTINGENCIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermPurchaseCommitmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2311301 - Disclosure - COMPENSATION ARRANGEMENTS (Tables)", "role": "http://www.groupon.com/role/CompensationArrangementsTables", "shortName": "COMPENSATION ARRANGEMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2311301 - Disclosure - REVENUE RECOGNITION (Tables)", "role": "http://www.groupon.com/role/RevenueRecognitionTables", "shortName": "REVENUE RECOGNITION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2312301 - Disclosure - RESTRUCTURING (Tables)", "role": "http://www.groupon.com/role/RestructuringTables", "shortName": "RESTRUCTURING (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2313301 - Disclosure - INCOME TAXES (Tables)", "role": "http://www.groupon.com/role/IncomeTaxesTables", "shortName": "INCOME TAXES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2315301 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)", "role": "http://www.groupon.com/role/FairValueMeasurementsTables", "shortName": "FAIR VALUE MEASUREMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "baseRef": "a201910-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": "2315301 - Disclosure - INCOME (LOSS) PER SHARE (Tables)", "role": "http://www.groupon.com/role/IncomeLossPerShareTables", "shortName": "INCOME (LOSS) PER SHARE (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)", "role": "http://www.groupon.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": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:ComprehensiveIncomeNetOfTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2316301 - Disclosure - SEGMENT INFORMATION (Tables)", "role": "http://www.groupon.com/role/SegmentInformationTables", "shortName": "SEGMENT INFORMATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2318301 - Disclosure - QUARTERLY RESULTS (UNAUDITED) (Tables)", "role": "http://www.groupon.com/role/QuarterlyResultsUnauditedTables", "shortName": "QUARTERLY RESULTS (UNAUDITED) (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2401401 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Details)", "role": "http://www.groupon.com/role/DescriptionOfBusinessAndBasisOfPresentationDetails", "shortName": "DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R53": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2018Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ReclassificationFromAociCurrentPeriodTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)", "role": "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2018Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ReclassificationFromAociCurrentPeriodTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402404 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details)", "role": "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2017Q4", "decimals": "-3", "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:NumberOfCountriesInWhichEntityOperates", "reportCount": 1, "unitRef": "numberofcountries", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403402 - Disclosure - DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS (Details)", "role": "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "shortName": "DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2016Q4", "decimals": "2", "lang": null, "name": "grpn:DiscontinuedOperationsPercentageofSubsidiarySold", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "span", "span", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ProfessionalFees", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404402 - Disclosure - BUSINESS COMBINATIONS - Additional Information (Details)", "role": "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "shortName": "BUSINESS COMBINATIONS - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "I2018Q2_us-gaap_BusinessAcquisitionAxis_grpn_CloudSavingsMember", "decimals": "2", "lang": null, "name": "us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "D2018Q4SD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:PaymentsForProceedsFromPreviousAcquisition", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404403 - Disclosure - BUSINESS COMBINATIONS - Summary of Fair Value of Consideration Transferred in Acquisition (Details)", "role": "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "shortName": "BUSINESS COMBINATIONS - Summary of Fair Value of Consideration Transferred in Acquisition (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "D2018Q4_us-gaap_BusinessAcquisitionAxis_grpn_CloudSavingsMember", "decimals": "-3", "lang": null, "name": "us-gaap:PaymentsToAcquireBusinessesGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "D2018Q2_us-gaap_BusinessAcquisitionAxis_grpn_CloudSavingsMember", "decimals": "-5", "first": true, "lang": null, "name": "grpn:ContingentConsiderationInConnectionWithAcquisitions", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404404 - Disclosure - BUSINESS COMBINATIONS - Allocation of Aggregate Acquisition Price (Details)", "role": "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "shortName": "BUSINESS COMBINATIONS - Allocation of Aggregate Acquisition Price (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R59": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:CapitalLeasedAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2405402 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details)", "role": "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "shortName": "PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:CapitalLeasedAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R6": { "firstAnchor": null, "groupType": "statement", "isDefault": "false", "longName": "1003501 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)", "role": "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossConsolidatedStatementsOfComprehensiveIncomeLossParenthetical", "shortName": "CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R60": { "firstAnchor": { "ancestors": [ "span", "span", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:CapitalizedComputerSoftwareAmortization1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2405403 - Disclosure - PROPERTY, EQUIPMENT AND SOFTWARE, NET Depreciation and Amortization (Details)", "role": "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "shortName": "PROPERTY, EQUIPMENT AND SOFTWARE, NET Depreciation and Amortization (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "ix:continuation", "ix:continuation", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:CapitalizedComputerSoftwareAmortization1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406402 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details)", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - 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": "a201910-k.htm", "contextRef": "FI2017Q4", "decimals": "-3", "lang": null, "name": "us-gaap:Goodwill", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecurities", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406402 - Disclosure - INVESTMENTS - Summary of Investments (Details)", "role": "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "shortName": "INVESTMENTS - Summary of Investments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2018Q4_us-gaap_InvestmentTypeAxis_grpn_NearbuyMember", "decimals": "-3", "lang": null, "name": "us-gaap:LiabilitiesCurrent", "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": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "grpn:FiniteLivedIntangibleAssetsAmortizationExpenseTotal", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406403 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Intangible Assets (Details)", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "grpn:FiniteLivedIntangibleAssetsAmortizationExpenseTotal", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesAmortizedCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406403 - Disclosure - INVESTMENTS - Schedule of Activity for Available For Sale Securities (Details)", "role": "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails", "shortName": "INVESTMENTS - Schedule of Activity for Available For Sale Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleSecuritiesAmortizedCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406404 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Details)", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R66": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406404 - Disclosure - INVESTMENTS - Additional Information (Details)", "role": "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "shortName": "INVESTMENTS - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2017Q4", "decimals": "-3", "lang": null, "name": "us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406405 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Estimated Future Amortization Expense (Details)", "role": "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Estimated Future Amortization Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestIncomeOther", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407402 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Other Income (Expense) (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Other Income (Expense) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestIncomeOther", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfOtherCurrentAssetsTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InventoryFinishedGoodsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407403 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Prepaid and Other Current Assets (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Prepaid and Other Current Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfOtherCurrentAssetsTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InventoryFinishedGoodsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-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 - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY", "role": "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-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" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofAccruedMerchantandSupplierPayablesTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "grpn:Merchantpayables", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407404 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accrued Merchant and Supplier Payables (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accrued Merchant and Supplier Payables (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofAccruedMerchantandSupplierPayablesTableTextBlock", "us-gaap:AdditionalFinancialInformationDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "grpn:Merchantpayables", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CustomerRefundLiabilityCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407405 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accrued Expense and Other Current Liabilities (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accrued Expense and Other Current Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CustomerRefundLiabilityCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "us-gaap:OtherNoncurrentLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AccruedIncomeTaxesNoncurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407406 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Other Non-current Liabilities (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Other Non-current Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "us-gaap:OtherNoncurrentLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AccruedIncomeTaxesNoncurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407407 - Disclosure - SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accumulated Other Comprehensive Income (Loss) (Details)", "role": "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails", "shortName": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION - Schedule of Accumulated Other Comprehensive Income (Loss) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "grpn:OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ConvertibleDebtFairValueDisclosures", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408402 - Disclosure - FINANCING ARRANGEMENTS - Schedule of Notes (Details)", "role": "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails", "shortName": "FINANCING ARRANGEMENTS - Schedule of Notes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ConvertibleDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofConvertibleDebtInterestExpenseTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestExpenseDebtExcludingAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408403 - Disclosure - FINANCING ARRANGEMENTS - Schedule of Convertible Debt Interest Expense (Details)", "role": "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails", "shortName": "FINANCING ARRANGEMENTS - Schedule of Convertible Debt Interest Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofConvertibleDebtInterestExpenseTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:InterestExpenseDebtExcludingAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:DebtDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2016Q2YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ProceedsFromDebtNetOfIssuanceCosts", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408404 - Disclosure - FINANCING ARRANGEMENTS - Convertible Senior Notes (Details)", "role": "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "shortName": "FINANCING ARRANGEMENTS - Convertible Senior Notes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:DebtDisclosureTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2016Q2YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ProceedsFromDebtNetOfIssuanceCosts", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2016Q2QTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DerivativeCostOfHedge", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408405 - Disclosure - FINANCING ARRANGEMENTS - Note Hedges and Warrants (Details)", "role": "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails", "shortName": "FINANCING ARRANGEMENTS - Note Hedges and Warrants (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2016Q2QTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DerivativeCostOfHedge", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2018Q3", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408406 - Disclosure - FINANCING ARRANGEMENTS - Revolving Credit Facility (Details)", "role": "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "shortName": "FINANCING ARRANGEMENTS - Revolving Credit Facility (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4_us-gaap_DebtInstrumentAxis_grpn_A2019CreditAgreementMember", "decimals": "-5", "lang": null, "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2018Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LeaseAndRentalExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409402 - Disclosure - LEASES - Additional Information (Details)", "role": "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "shortName": "LEASES - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2018Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LeaseAndRentalExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS", "role": "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:IncreaseDecreaseInAccountsReceivable", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409403 - Disclosure - LEASES Right-of-Use Assets (Details)", "role": "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails", "shortName": "LEASES Right-of-Use Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:FinanceLeaseRightOfUseAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseRightOfUseAssetAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409404 - Disclosure - LEASES Total Lease Cost (Details)", "role": "http://www.groupon.com/role/LeasesTotalLeaseCostDetails", "shortName": "LEASES Total Lease Cost (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseRightOfUseAssetAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409405 - Disclosure - LEASES Future Lease Amount (Details)", "role": "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails", "shortName": "LEASES Future Lease Amount (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:OperatingLeaseLeaseIncomeTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409406 - Disclosure - LEASES Sublease (Details)", "role": "http://www.groupon.com/role/LeasesSubleaseDetails", "shortName": "LEASES Sublease (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:OperatingLeaseLeaseIncomeTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:SupplementalCashFlowInformationRelatedtoLeasesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseInterestPaymentOnLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409407 - Disclosure - LEASES Supplemental Cash Flow (Details)", "role": "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails", "shortName": "LEASES Supplemental Cash Flow (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:SupplementalCashFlowInformationRelatedtoLeasesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseInterestPaymentOnLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:PreferredStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410401 - Disclosure - STOCKHOLDERS' EQUITY (Details)", "role": "http://www.groupon.com/role/StockholdersEquityDetails", "shortName": "STOCKHOLDERS' EQUITY (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:PreferredStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LongTermPurchaseCommitmentTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PurchaseObligationDueInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410402 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)", "role": "http://www.groupon.com/role/CommitmentsAndContingenciesDetails", "shortName": "COMMITMENTS AND CONTINGENCIES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LongTermPurchaseCommitmentTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PurchaseObligationDueInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "span", "span", "ix:continuation", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411402 - Disclosure - COMPENSATION ARRANGEMENTS - Additional Information (Details)", "role": "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "shortName": "COMPENSATION ARRANGEMENTS - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "ix:continuation", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R88": { "firstAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AmortizationOfDeferredCharges", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411402 - Disclosure - REVENUE RECOGNITION - Additional Information (Details)", "role": "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "shortName": "REVENUE RECOGNITION - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "lang": null, "name": "us-gaap:ContractWithCustomerLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2018Q4", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:SharesOutstanding", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411403 - Disclosure - COMPENSATION ARRANGEMENTS - Restricted Stock Units (Details)", "role": "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "shortName": "COMPENSATION ARRANGEMENTS - Restricted Stock Units (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R9": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101100 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION", "role": "http://www.groupon.com/role/DescriptionOfBusinessAndBasisOfPresentation", "shortName": "DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R90": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "grpn:CustomerCreditsCreditsIssued", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411403 - Disclosure - REVENUE RECOGNITION - Liability for Customer Credits Rollforward (Details)", "role": "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails", "shortName": "REVENUE RECOGNITION - Liability for Customer Credits Rollforward (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "grpn:CustomerCreditsCreditsIssued", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411404 - Disclosure - COMPENSATION ARRANGEMENTS - Stock Options (Details)", "role": "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "shortName": "COMPENSATION ARRANGEMENTS - Stock Options (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensation", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2412402 - Disclosure - RESTRUCTURING - Summary of Costs Incurred by Segment Related to Restructuring (Details)", "role": "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "shortName": "RESTRUCTURING - Summary of Costs Incurred by Segment Related to Restructuring (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD_us-gaap_RestructuringCostAndReserveAxis_us-gaap_EmployeeSeveranceMember", "decimals": "-3", "lang": null, "name": "us-gaap:RestructuringCharges", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensation", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2412403 - Disclosure - RESTRUCTURING - Schedule of Restructuring Liability (Details)", "role": "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "shortName": "RESTRUCTURING - Schedule of Restructuring Liability (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfRestructuringReserveByTypeOfCostTextBlock", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:RestructuringAndRelatedCostIncurredCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413402 - Disclosure - INCOME TAXES - Additional Information (Details)", "role": "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "shortName": "INCOME TAXES - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R95": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413403 - Disclosure - INCOME TAXES - Schedule of Pretax Income (Loss) (Details)", "role": "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails", "shortName": "INCOME TAXES - Schedule of Pretax Income (Loss) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentIncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413404 - Disclosure - INCOME TAXES - Schedule of Provision (Benefit) for Income Taxes (Details)", "role": "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails", "shortName": "INCOME TAXES - Schedule of Provision (Benefit) for Income Taxes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentIncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2413405 - Disclosure - INCOME TAXES - Differences Between Income Tax Provision (Benefit) (Details)", "role": "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails", "shortName": "INCOME TAXES - Differences Between Income Tax Provision (Benefit) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R98": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413406 - Disclosure - INCOME TAXES - Deferred Tax Assets and Liabilities (Details)", "role": "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails", "shortName": "INCOME TAXES - Deferred Tax Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R99": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofUnrecognizedTaxBenefitsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-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": "2413407 - Disclosure - INCOME TAXES - Unrecognized Tax Benefits (Details)", "role": "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails", "shortName": "INCOME TAXES - Unrecognized Tax Benefits (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "grpn:ScheduleofUnrecognizedTaxBenefitsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "a201910-k.htm", "contextRef": "FI2016Q4", "decimals": "-3", "lang": null, "name": "us-gaap:UnrecognizedTaxBenefits", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } } }, "segmentCount": 115, "tag": { "country_CH": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "SWITZERLAND", "terseLabel": "SWITZERLAND" } } }, "localname": "CH", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "country_GB": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "UNITED KINGDOM", "terseLabel": "UNITED KINGDOM" } } }, "localname": "GB", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "country_IE": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "IRELAND", "terseLabel": "IRELAND" } } }, "localname": "IE", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "country_US": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "UNITED STATES", "terseLabel": "UNITED STATES" } } }, "localname": "US", "nsuri": "http://xbrl.sec.gov/country/2017-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentAnnualReport": { "auth_ref": [ "r653" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "dateItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r652" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "submissionTypeItemType" }, "dei_DocumentsIncorporatedByReferenceTextBlock": { "auth_ref": [ "r650" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r654" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.", "label": "Entity [Domain]", "terseLabel": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r654" ], "lang": { "en-US": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r654" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r655" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "monetaryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r654" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r654" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r654" ], "lang": { "en-US": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Smaller Reporting Company" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.groupon.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r654" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]", "terseLabel": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "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.groupon.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_LocationDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A domain representing all geographic locations. Depending on the axis, it may contain members that are specific geographies, or synthetic entity-specific geographical groups.", "label": "Location [Domain]", "terseLabel": "Location [Domain]" } } }, "localname": "LocationDomain", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r649" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r651" ], "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.groupon.com/role/CoverPage" ], "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.groupon.com/role/CoverPage" ], "xbrltype": "tradingSymbolItemType" }, "grpn_A2008PlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "2008 Plan [Member]", "label": "2008 Plan [Member]", "terseLabel": "2008 Plan" } } }, "localname": "A2008PlanMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_A2010PlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "2010 Plan [Member] [Member]", "label": "2010 Plan [Member]", "terseLabel": "2010 Plan" } } }, "localname": "A2010PlanMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_A2011PlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "2011 Plan [Member]", "label": "2011 Plan [Member]", "terseLabel": "2011 Plan" } } }, "localname": "A2011PlanMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_A2019CreditAgreementMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "2019 Credit Agreement [Member]", "label": "2019 Credit Agreement [Member]", "terseLabel": "2019 Credit Agreement [Member]" } } }, "localname": "A2019CreditAgreementMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "grpn_A600WestChicagoMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "600 West Chicago [Member]", "label": "600 West Chicago [Member]", "terseLabel": "600 West Chicago [Member]" } } }, "localname": "A600WestChicagoMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_Accruedmerchantandsupplierpayable": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accrued merchant and supplier payable", "label": "Accrued merchant and supplier payable", "terseLabel": "Accrued merchant and supplier payables", "totalLabel": "Total accrued merchant and supplier payables" } } }, "localname": "Accruedmerchantandsupplierpayable", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_AccumulatedAmortizationRightofuseAssets": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails": { "order": 2.0, "parentTag": "grpn_LeaseRightofUseAssetNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated Amortization, Right-of-use Assets", "label": "Accumulated Amortization, Right-of-use Assets", "negatedTerseLabel": "Less: accumulated depreciation and amortization" } } }, "localname": "AccumulatedAmortizationRightofuseAssets", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_AcquisitionRelatedBenefitExpenseNet": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Acquisition Related (Benefit) Expense, Net", "label": "Acquisition Related (Benefit) Expense, Net", "terseLabel": "Restructuring charges", "verboseLabel": "Acquisition related (benefit) expense, net" } } }, "localname": "AcquisitionRelatedBenefitExpenseNet", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "grpn_AllHoldersMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "All Holders [Member]", "label": "All Holders [Member]", "terseLabel": "All Holders [Member]" } } }, "localname": "AllHoldersMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_AssetImpairmentsRelatedtoRestructuringMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Asset Impairments Related to Restructuring [Member]", "label": "Asset Impairments Related to Restructuring [Member]", "terseLabel": "Asset Impairments Related to Restructuring" } } }, "localname": "AssetImpairmentsRelatedtoRestructuringMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "grpn_AvailableforSaleSecuritiesRedeemablePreferredSharesOwnershipPercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Available for Sale Securities, Redeemable Preferred Shares, Ownership Percentage", "label": "Available for Sale Securities, Redeemable Preferred Shares, Ownership Percentage", "terseLabel": "Available for Sale Securities, Redeemable Preferred Shares, Ownership Percentage", "verboseLabel": "Available for sale securities, percent ownership of voting stock" } } }, "localname": "AvailableforSaleSecuritiesRedeemablePreferredSharesOwnershipPercentage", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "percentItemType" }, "grpn_BasicAndDilutedNetIncomeLossPerShareDenominatorAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Basic And Diluted Net Income (Loss) Per Share, Denominator [Abstract]", "label": "Basic And Diluted Net Income (Loss) Per Share, Denominator [Abstract]", "terseLabel": "Denominator" } } }, "localname": "BasicAndDilutedNetIncomeLossPerShareDenominatorAbstract", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "xbrltype": "stringItemType" }, "grpn_BasicAndDilutedNetIncomeLossPerShareNumeratorAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Basic And Diluted Net Income (Loss) Per Share, Numerator [Abstract]", "label": "Basic And Diluted Net Income (Loss) Per Share, Numerator [Abstract]", "terseLabel": "Numerator" } } }, "localname": "BasicAndDilutedNetIncomeLossPerShareNumeratorAbstract", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "xbrltype": "stringItemType" }, "grpn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets, Including Goodwill", "label": "Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Assets, Including Goodwill", "terseLabel": "Goodwill" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "grpn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedMerchantandSupplierPayables": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Merchant and Supplier Payables", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Merchant and Supplier Payables", "terseLabel": "Accrued merchant and supplier payables" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedMerchantandSupplierPayables", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "grpn_BusinessCombinationsRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedExpenses": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses", "label": "Business Combinations, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses", "terseLabel": "Accrued expenses and other current liabilities" } } }, "localname": "BusinessCombinationsRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedAccruedExpenses", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "grpn_CapitalUnitClassA1Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Capital Unit, Class A-1 [Member]", "label": "Capital Unit, Class A-1 [Member]", "terseLabel": "Capital Unit, Class A-1 [Member]" } } }, "localname": "CapitalUnitClassA1Member", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Cash, Cash Equivalents, and Restricted Cash, Period Increase (Decrease), Including Cash from Discontinued Operations", "label": "Cash, Cash Equivalents, and Restricted Cash, Period Increase (Decrease), Including Cash from Discontinued Operations", "totalLabel": "Net increase (decrease) in cash, cash equivalents and restricted cash, including cash classified within current assets of discontinued operations" } } }, "localname": "CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "grpn_CashInstitutionCovenant": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Cash Institution Covenant", "label": "Cash Institution Covenant", "terseLabel": "Amount of accounts held with lenders" } } }, "localname": "CashInstitutionCovenant", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "grpn_Cashreceivablefromdisposition": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Cash receivable from disposition", "label": "Cash receivable from disposition", "terseLabel": "Cash proceeds receivable" } } }, "localname": "Cashreceivablefromdisposition", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_CategoryAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Category [Axis]", "label": "Category [Axis]", "terseLabel": "Category [Axis]" } } }, "localname": "CategoryAxis", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "stringItemType" }, "grpn_CategoryDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Domain] for Category [Axis]", "label": "Category [Domain]", "terseLabel": "Category [Domain]" } } }, "localname": "CategoryDomain", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_CloudSavingsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cloud Savings [Member]", "label": "Cloud Savings [Member]", "terseLabel": "Cloud Savings [Member]" } } }, "localname": "CloudSavingsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_CondensedConsolidatedStatementOfStockholdersEquityTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Condensed Consolidated Statement of Stockholders Equity [Table]", "label": "Condensed Consolidated Statement of Stockholders Equity [Table]", "terseLabel": "Condensed Consolidated Statement of Stockholders Equity [Table]" } } }, "localname": "CondensedConsolidatedStatementOfStockholdersEquityTable", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "stringItemType" }, "grpn_ContingentConsiderationInConnectionWithAcquisitions": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Contingent consideration in connection with acquisitions - noncash investing activity", "label": "Contingent consideration in connection with acquisitions", "terseLabel": "Contingent consideration liability incurred in connection with acquisition of business", "verboseLabel": "Contingent consideration in connection with acquisitions" } } }, "localname": "ContingentConsiderationInConnectionWithAcquisitions", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_ContractLiabilityforTransitionServices": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Contract Liability for Transition Services", "label": "Contract Liability for Transition Services", "terseLabel": "Less: Unfavorable contract liability for transition services" } } }, "localname": "ContractLiabilityforTransitionServices", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_ConvertibleNoteHedgeStrikePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Convertible Note Hedge, Strike Price", "label": "Convertible Note Hedge, Strike Price", "terseLabel": "Strike price (in usd per share)" } } }, "localname": "ConvertibleNoteHedgeStrikePrice", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "perShareItemType" }, "grpn_CountryAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Country [Axis]", "label": "Country [Axis]", "terseLabel": "Country [Axis]" } } }, "localname": "CountryAxis", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "stringItemType" }, "grpn_CountryDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Domain] for Country [Axis]", "label": "Country [Domain]", "terseLabel": "Country [Domain]" } } }, "localname": "CountryDomain", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_CriteriaforContingentlyIssuableShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Criteria for Contingently Issuable Shares", "label": "Criteria for Contingently Issuable Shares", "terseLabel": "Criteria for Contingently Issuable Shares" } } }, "localname": "CriteriaforContingentlyIssuableShares", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "perShareItemType" }, "grpn_CustomerCreditsBreakageRevenueRecognized": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Customer Credits, Breakage Revenue Recognized", "label": "Customer Credits, Breakage Revenue Recognized", "negatedTerseLabel": "Customer Credits, Breakage Revenue Recognized" } } }, "localname": "CustomerCreditsBreakageRevenueRecognized", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "grpn_CustomerCreditsCreditsIssued": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Customer Credits, Credits Issued", "label": "Customer Credits, Credits Issued", "terseLabel": "Customer Credits, Credits Issued" } } }, "localname": "CustomerCreditsCreditsIssued", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "grpn_CustomerCreditsCreditsRedeemed": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Customer Credits, Credits Redeemed", "label": "Customer Credits, Credits Redeemed", "negatedTerseLabel": "Customer Credits, Credits Redeemed" } } }, "localname": "CustomerCreditsCreditsRedeemed", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "grpn_CustomerCreditsForeignCurrencyTranslation": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Customer Credits, Foreign Currency Translation", "label": "Customer Credits, Foreign Currency Translation", "negatedTerseLabel": "Customer Credits, Foreign Currency Translation" } } }, "localname": "CustomerCreditsForeignCurrencyTranslation", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "grpn_Customercredits": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Credits to customers that can be applied to future purchases on our online marketplaces. Credits are primarily issued for refunds or for customer relationship purposes.", "label": "Customer credits", "terseLabel": "Customer credits" } } }, "localname": "Customercredits", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_DeferredTaxAssetsOperatingLeaseLiability": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "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": "Operating lease obligation" } } }, "localname": "DeferredTaxAssetsOperatingLeaseLiability", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_DeferredTaxLiabilityOperatingLeaseRightOfUseAsset": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Deferred Tax Liability, Operating Lease, Right-Of-Use Asset", "label": "Deferred Tax Liability, Operating Lease, Right-Of-Use Asset", "negatedTerseLabel": "Right-of-use asset" } } }, "localname": "DeferredTaxLiabilityOperatingLeaseRightOfUseAsset", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_DiscontinuedOperationsIncomeLossfromDiscontinuedOperationsbeforeIncomeTaxandGainLossonDisposal": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Discontinued Operations, Income (Loss) from Discontinued Operations, before Income Tax and Gain (Loss) on Disposal", "label": "Discontinued Operations, Income (Loss) from Discontinued Operations, before Income Tax and Gain (Loss) on Disposal", "negatedTerseLabel": "Income (loss) from discontinued operations before loss on dispositions and provision for income taxes" } } }, "localname": "DiscontinuedOperationsIncomeLossfromDiscontinuedOperationsbeforeIncomeTaxandGainLossonDisposal", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_DiscontinuedOperationsNetBookValueofDisposals": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Discontinued Operations, Net Book Value of Disposals Upon Closing of the Transactions", "label": "Discontinued Operations, Net Book Value of Disposals", "terseLabel": "Less: Net book value upon closing of the transactions" } } }, "localname": "DiscontinuedOperationsNetBookValueofDisposals", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_DiscontinuedOperationsPercentageofSubsidiarySold": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Discontinued Operations, Percentage of Subsidiary Sold", "label": "Discontinued Operations, Percentage of Subsidiary Sold", "terseLabel": "Percentage of controlling stake" } } }, "localname": "DiscontinuedOperationsPercentageofSubsidiarySold", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "percentItemType" }, "grpn_DispositionofIntangibleAssetsGrossConsiderationReceived": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Disposition of Intangible Assets, Gross Consideration Received", "label": "Disposition of Intangible Assets, Gross Consideration Received", "terseLabel": "Disposition of Intangible Assets, Gross Consideration Received" } } }, "localname": "DispositionofIntangibleAssetsGrossConsiderationReceived", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EffectiveIncomeTaxRateReconciliationExpenseOrdinaryStockLoss": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 12.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Expense, Ordinary Stock Loss", "label": "Effective Income Tax Rate Reconciliation, Expense, Ordinary Stock Loss", "negatedLabel": "Ordinary stock loss" } } }, "localname": "EffectiveIncomeTaxRateReconciliationExpenseOrdinaryStockLoss", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EffectiveIncomeTaxRateReconciliationExpirationOfOperatingLossCarryforward": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 13.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Expiration Of Operating Loss Carryforward", "label": "Effective Income Tax Rate Reconciliation, Expiration Of Operating Loss Carryforward", "terseLabel": "Net operating loss expiration" } } }, "localname": "EffectiveIncomeTaxRateReconciliationExpirationOfOperatingLossCarryforward", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EffectiveIncomeTaxRateReconciliationForgivenessofIntercompanyLiabilities": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 11.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Forgiveness of Intercompany Liabilities", "label": "Effective Income Tax Rate Reconciliation, Forgiveness of Intercompany Liabilities", "negatedLabel": "Forgiveness of intercompany liabilities" } } }, "localname": "EffectiveIncomeTaxRateReconciliationForgivenessofIntercompanyLiabilities", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EquityInvestmentDispositions": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Investment, Dispositions", "label": "Equity Investment, Dispositions", "negatedTerseLabel": "Equity Investment, Dispositions" } } }, "localname": "EquityInvestmentDispositions", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EquityInvestmentTransfertoOtherEquityInvestments": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Investment, Transfer to Other Equity Investments", "label": "Equity Investment, Transfer to Other Equity Investments", "terseLabel": "Equity Investment, Transfer to Other Equity Investments" } } }, "localname": "EquityInvestmentTransfertoOtherEquityInvestments", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_EquityMethodInvestmentSummarizedFinancialInformationGainLossBeforeIncomeTaxes": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Gain (Loss) Before Income Taxes", "label": "Equity Method Investment, Summarized Financial Information, Gain (Loss) Before Income Taxes", "terseLabel": "Equity Method Investment, Summarized Financial Information, Gain (Loss) Before Income Taxes" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationGainLossBeforeIncomeTaxes", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs [Table Text Block]", "label": "Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs [Table Text Block]", "terseLabel": "Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs" } } }, "localname": "FairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "grpn_FairValueMeasurementWithUnobservableInputReconciliationAssetProceedsFromSalesandMaturitiesofConvertibleDebtSecurity": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair Value, Measurement With Unobservable Input Reconciliation, Asset, Proceeds From Sales and Maturities of Convertible Debt Security", "label": "Fair Value, Measurement With Unobservable Input Reconciliation, Asset, Proceeds From Sales and Maturities of Convertible Debt Security", "negatedTerseLabel": "Proceeds from Convertible Debt" } } }, "localname": "FairValueMeasurementWithUnobservableInputReconciliationAssetProceedsFromSalesandMaturitiesofConvertibleDebtSecurity", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FairValueMeasurementwithUnobservableInputReconciliationRecurringBasisAssetAvailableForSaleInvestmentTransfertoOtherEquityInvestment": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair Value, Measurement with unobservable input reconciliation, recurring basis, asset, available-for-sale investment transfer to other equity investment", "label": "Fair Value, Measurement with Unobservable Input Reconciliation, Recurring Basis, Asset, Available-For-Sale Investment Transfer to Other Equity Investment", "negatedTerseLabel": "available-for-sale investment transfer to other equity investment" } } }, "localname": "FairValueMeasurementwithUnobservableInputReconciliationRecurringBasisAssetAvailableForSaleInvestmentTransfertoOtherEquityInvestment", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyTranslation": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Foreign Currency Translation", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Foreign Currency Translation", "terseLabel": "Foreign Currency Contracts, Liability, Fair Value Disclosure" } } }, "localname": "FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyTranslation", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FairValueOptionInvestmentRecapitalizationTransactionSharesIssued": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fair-Value Option Investment, Recapitalization Transaction, Shares Issued", "label": "Fair-Value Option Investment, Recapitalization Transaction, Shares Issued", "terseLabel": "Fair-Value Option Investment, Recapitalization Transaction, Shares Issued" } } }, "localname": "FairValueOptionInvestmentRecapitalizationTransactionSharesIssued", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "sharesItemType" }, "grpn_FairValueOptionInvestmentsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fair Value Option Investments [Member]", "label": "Fair Value Option Investments [Member]", "terseLabel": "Fair Value Option Investments" } } }, "localname": "FairValueOptionInvestmentsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_FairValueOptionInvestmentsRecapitalizationTransactionLiquidationPreference": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair-Value Option Investments, Recapitalization Transaction, Liquidation Preference", "label": "Fair-Value Option Investments, Recapitalization Transaction, Liquidation Preference", "terseLabel": "Fair-Value Option Investments, Recapitalization Transaction, Liquidation Preference" } } }, "localname": "FairValueOptionInvestmentsRecapitalizationTransactionLiquidationPreference", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FairValueOptionInvestmentsRecapitalizationTransactionOwnershipPercentageOutstanding": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fair-Value Option Investments, Recapitalization Transaction, Ownership Percentage Outstanding", "label": "Fair-Value Option Investments, Recapitalization Transaction, Ownership Percentage Outstanding", "terseLabel": "Fair-Value Option Investments, Recapitalization Transaction, Ownership Percentage Outstanding" } } }, "localname": "FairValueOptionInvestmentsRecapitalizationTransactionOwnershipPercentageOutstanding", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "percentItemType" }, "grpn_FinanceLeaseCost": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 1.0, "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.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "grpn_FiniteLivedIntangibleAssetsAmortizationExpenseTotal": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Finite-Lived Intangible Assets, Amortization Expense, Total - The sum of the amortization expense for the remainder of 2012 through the year 2016 and beyond for what is actually calculable.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Total", "terseLabel": "Finite-Lived Intangible Assets, Amortization Expense, Total" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseTotal", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_ForeignCurrencyTranslationEquityInvestment": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Foreign Currency Translation, Equity Investment", "label": "Foreign Currency Translation, Equity Investment", "terseLabel": "Foreign Currency Translation, Equity Investment" } } }, "localname": "ForeignCurrencyTranslationEquityInvestment", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_GainonExpirationofIndemnityLiability": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Gain on Expiration of Indemnity Liability", "label": "Gain on Expiration of Indemnity Liability", "terseLabel": "Gain on Expiration of Indemnity Liability" } } }, "localname": "GainonExpirationofIndemnityLiability", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_GoodsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Goods [Member]", "label": "Goods [Member]", "terseLabel": "Goods" } } }, "localname": "GoodsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_GoodwillReallocationtoNewSegment": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Goodwill, Reallocation to New Segment", "label": "Goodwill, Reallocation to New Segment", "terseLabel": "Goodwill, Reallocation to New Segment" } } }, "localname": "GoodwillReallocationtoNewSegment", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "grpn_GrouponLatinAmericaMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Groupon Latin America [Member]", "label": "Groupon Latin America [Member]", "terseLabel": "Groupon Latin America [Member]" } } }, "localname": "GrouponLatinAmericaMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "domainItemType" }, "grpn_HedgingActivitySharesCovered": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Hedging Activity, Shares Covered", "label": "Hedging Activity, Shares Covered", "terseLabel": "Number of shares available to be purchased (in shares)" } } }, "localname": "HedgingActivitySharesCovered", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "sharesItemType" }, "grpn_HostingArrangementServiceContractImplementationCostCapitalizedAmountCapitalized": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Amount Capitalized", "label": "Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Amount Capitalized", "terseLabel": "Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Amount Capitalized" } } }, "localname": "HostingArrangementServiceContractImplementationCostCapitalizedAmountCapitalized", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_IBMLawsuitMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "IBM [Member]", "label": "IBM Lawsuit [Member]", "terseLabel": "IBM Lawsuit [Member]" } } }, "localname": "IBMLawsuitMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_IBMPatentLitigationCaseMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "IBM Patent Litigation Case [Member]", "label": "IBM Patent Litigation Case [Member]", "terseLabel": "IBM Patent Litigation Case" } } }, "localname": "IBMPatentLitigationCaseMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "grpn_IncreaseDecreaseInAccruedMerchantPayables": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 16.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) in Accrued Merchant Payables", "label": "Increase (Decrease) in Accrued Merchant Payables", "terseLabel": "Accrued merchant and supplier payables" } } }, "localname": "IncreaseDecreaseInAccruedMerchantPayables", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "grpn_IncreaseDecreaseInOperatingLeaseLiability": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 18.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) In Operating Lease, Liability", "label": "Increase (Decrease) In Operating Lease, Liability", "terseLabel": "Operating lease obligations" } } }, "localname": "IncreaseDecreaseInOperatingLeaseLiability", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "grpn_IncreaseDecreaseInOperatingLeaseRightOfUseAsset": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) In Operating Lease, Right-Of-Use Asset", "label": "Increase (Decrease) In Operating Lease, Right-Of-Use Asset", "negatedTerseLabel": "Right-of-use assets - operating leases" } } }, "localname": "IncreaseDecreaseInOperatingLeaseRightOfUseAsset", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "grpn_IndemnificationLiabilities": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Indemnification Liabilities Assumed", "label": "Indemnification Liabilities", "terseLabel": "Less: Indemnification liabilities", "verboseLabel": "Indemnification Liabilities" } } }, "localname": "IndemnificationLiabilities", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_IndemnificationLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Indemnification Liability", "label": "Indemnification Liability", "verboseLabel": "Estimated indemnification liability" } } }, "localname": "IndemnificationLiability", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_IndemnificationLiabilityMaximumExposure": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Indemnification Liability, Estimated Maximum Exposure", "label": "Indemnification Liability, Maximum Exposure", "verboseLabel": "Maximum exposure of indemnification liability" } } }, "localname": "IndemnificationLiabilityMaximumExposure", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_InternationalMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "International [Member]", "label": "International [Member]", "terseLabel": "International" } } }, "localname": "InternationalMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_LeaseLiabilityCurrent": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 7.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lease Liability, Current", "label": "Lease Liability, Current", "terseLabel": "Current portion of lease obligations" } } }, "localname": "LeaseLiabilityCurrent", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_LeaseRightofUseAsset": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails": { "order": 1.0, "parentTag": "grpn_LeaseRightofUseAssetNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Lease, Right of Use Asset", "label": "Lease, Right of Use Asset", "totalLabel": "Total right-of-use assets, gross" } } }, "localname": "LeaseRightofUseAsset", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_LeaseRightofUseAssetNet": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Lease, Right of Use Asset, Net", "label": "Lease, Right of Use Asset, Net", "totalLabel": "Right-of-use assets, net" } } }, "localname": "LeaseRightofUseAssetNet", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_LeasesDiscountRate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Leases, Discount Rate", "label": "Leases, Discount Rate", "terseLabel": "Discount rate" } } }, "localname": "LeasesDiscountRate", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "grpn_LesseeOperatingLeaseLiabilityLeaseNotyetCommencedPaymentsDue": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Operating Lease, Liability, Lease Not yet Commenced, Payments Due", "label": "Lessee, Operating Lease, Liability, Lease Not yet Commenced, Payments Due", "terseLabel": "Lessee, Operating Lease, Liability, Lease Not yet Commenced, Payments Due" } } }, "localname": "LesseeOperatingLeaseLiabilityLeaseNotyetCommencedPaymentsDue", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_LineofCreditSecuredOutstandingStockPercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line of Credit, Secured, Outstanding Stock Percentage", "label": "Line of Credit, Secured, Outstanding Stock Percentage", "terseLabel": "Outstanding stock percentage" } } }, "localname": "LineofCreditSecuredOutstandingStockPercentage", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "percentItemType" }, "grpn_LocalMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Local [Member]", "label": "Local [Member]", "terseLabel": "Local" } } }, "localname": "LocalMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_LocationAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Location [Axis]", "label": "Location [Axis]", "terseLabel": "Location [Axis]" } } }, "localname": "LocationAxis", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "grpn_MarketbasedPerformanceShareUnitsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Market-based Performance Share Units [Member]", "label": "Market-based Performance Share Units [Member]", "terseLabel": "Market-based Performance Share Units [Member]" } } }, "localname": "MarketbasedPerformanceShareUnitsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "domainItemType" }, "grpn_MerchantRelationshipsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Merchant relationships [Member] - Intangible asset realized in purchase accounting for pre-existing relationships with merchant partners that resulted from a business combination.", "label": "Merchant relationships [Member]", "terseLabel": "Merchant relationships" } } }, "localname": "MerchantRelationshipsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "grpn_Merchantpayables": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails": { "order": 1.0, "parentTag": "grpn_Accruedmerchantandsupplierpayable", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Merchant payables", "label": "Merchant payables", "terseLabel": "Accrued merchant payables" } } }, "localname": "Merchantpayables", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_MonsterLPMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Monster LP [Member]", "label": "Monster LP [Member]", "terseLabel": "Monster LP" } } }, "localname": "MonsterLPMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_NearbuyMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Nearbuy [Member]", "label": "Nearbuy [Member]", "terseLabel": "Nearbuy" } } }, "localname": "NearbuyMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_NumberofCountriesExitedinconnectionwithDiscontinuedOperations": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of Countries Exited in connection with Discontinued Operations", "label": "Number of Countries Exited in connection with Discontinued Operations", "terseLabel": "Number of Countries Exited in connection with Discontinued Operations", "verboseLabel": "Number of Countries in which Entity Operates" } } }, "localname": "NumberofCountriesExitedinconnectionwithDiscontinuedOperations", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DescriptionOfBusinessAndBasisOfPresentationDetails", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "integerItemType" }, "grpn_ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 9.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Observable Price Change Adjustments, Investments, Upward Adjustment", "label": "Observable Price Change Adjustments, Investments, Upward Adjustment", "negatedTerseLabel": "Upward adjustment for observable price change of investment", "terseLabel": "Observable Price Change Adjustments, Investments, Upward Adjustment" } } }, "localname": "ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "grpn_OperatingLeaseLiabilityCurrentAdditionalAmountRecognizedDuetoAdoptionofTopic842": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Operating Lease, Liability, Current, Additional Amount Recognized Due to Adoption of Topic 842", "label": "Operating Lease, Liability, Current, Additional Amount Recognized Due to Adoption of Topic 842", "terseLabel": "Additional lease obligations recognized" } } }, "localname": "OperatingLeaseLiabilityCurrentAdditionalAmountRecognizedDuetoAdoptionofTopic842", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_OperatingLeaseRightofUseAssetNet": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Operating Lease, Right-of-Use Asset, Net", "label": "Operating Lease, Right-of-Use Asset, Net", "terseLabel": "Right-of-use assets - operating leases, net" } } }, "localname": "OperatingLeaseRightofUseAssetNet", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "grpn_OrderUpIntangibleMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "OrderUp Intangible [Member]", "label": "OrderUp Intangible [Member]", "terseLabel": "OrderUp Intangible [Member]" } } }, "localname": "OrderUpIntangibleMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "grpn_OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Net of Tax", "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Net of Tax", "negatedTerseLabel": "Reclassification adjustment included in income (loss) from discontinued operations" } } }, "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "grpn_OtherComprehensiveIncomeLossFromContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Comprehensive Income (Loss) From Continuing Operations [Abstract]", "label": "Other Comprehensive Income (Loss) From Continuing Operations [Abstract]", "terseLabel": "Other comprehensive income (loss) from continuing operations:" } } }, "localname": "OtherComprehensiveIncomeLossFromContinuingOperationsAbstract", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "stringItemType" }, "grpn_OtherComprehensiveIncomeLossFromDiscontinuedOperationsForeignCurrencyTranslationAdjustmentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Comprehensive Income (Loss) From Discontinued Operations - Foreign Currency Translation Adjustments [Abstract]", "label": "Other Comprehensive Income (Loss) From Discontinued Operations - Foreign Currency Translation Adjustments [Abstract]", "terseLabel": "Other comprehensive income (loss) from discontinued operations - foreign currency translation adjustments:" } } }, "localname": "OtherComprehensiveIncomeLossFromDiscontinuedOperationsForeignCurrencyTranslationAdjustmentsAbstract", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "stringItemType" }, "grpn_OtherContractualCommitmentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Contractual Commitments [Abstract]", "label": "Other Contractual Commitments [Abstract]", "terseLabel": "Other Contractual Commitments [Abstract]" } } }, "localname": "OtherContractualCommitmentsAbstract", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "stringItemType" }, "grpn_OtherEquityInvestmentsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Equity Investments [Member]", "label": "Other Equity Investments [Member]", "terseLabel": "Other Equity Investments" } } }, "localname": "OtherEquityInvestmentsMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "grpn_OtherEquityMethodInvestmentsOwnershipPercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Equity Method Investments, Ownership Percentage", "label": "Other Equity Method Investments, Ownership Percentage", "terseLabel": "Percentage of equity interest sold in other equity method investments", "verboseLabel": "Other Equity Method Investments, Ownership Percentage" } } }, "localname": "OtherEquityMethodInvestmentsOwnershipPercentage", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "grpn_OtherStockbasedCompensationMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Stock-based Compensation [Member]", "label": "Other Stock-based Compensation [Member]", "terseLabel": "Other stock-based compensation awards", "verboseLabel": "Other Stock-based Compensation [Member]" } } }, "localname": "OtherStockbasedCompensationMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "grpn_Payablestosuppliersofinventories": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails": { "order": 2.0, "parentTag": "grpn_Accruedmerchantandsupplierpayable", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Payables to suppliers of inventories", "label": "Payables to suppliers of inventories", "terseLabel": "Accrued supplier payables (1)" } } }, "localname": "Payablestosuppliersofinventories", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedMerchantAndSupplierPayablesDetails" ], "xbrltype": "monetaryItemType" }, "grpn_PaymentsForFinanceLeasesBusinessAcquisitions": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Payments For Finance Leases, Business Acquisitions", "label": "Payments For Finance Leases, Business Acquisitions", "negatedTerseLabel": "Payment of financing obligation related to acquisition" } } }, "localname": "PaymentsForFinanceLeasesBusinessAcquisitions", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "grpn_PresentValueofFinancingObligation": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present Value of Financing Obligation to acquire additional shares of a previously acquired business", "label": "Present Value of Financing Obligation", "terseLabel": "Financing obligation incurred in connection with acquisition of business" } } }, "localname": "PresentValueofFinancingObligation", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "grpn_ReclassificationfromAOCICurrentPeriodStrandedTaxEffectsASU201802Tax": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Reclassification from AOCI, Current Period, Stranded Tax Effects ASU 2018-02, Tax", "label": "Reclassification from AOCI, Current Period, Stranded Tax Effects ASU 2018-02, Tax", "terseLabel": "Reclassification for impact of U.S. tax rate change", "verboseLabel": "Reclassification from AOCI, Current Period, Stranded Tax Effects ASU 2018-02, Tax" } } }, "localname": "ReclassificationfromAOCICurrentPeriodStrandedTaxEffectsASU201802Tax", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "grpn_Reclassificationofcontingentliabilitytononfairvalue": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Reclassification of contingent liability to non-fair value when the liability is no longer contingent", "label": "Reclassification of contingent liability to non-fair value", "negatedTerseLabel": "Reclassification of contingent liability to non-fair value" } } }, "localname": "Reclassificationofcontingentliabilitytononfairvalue", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_RestructuringLiabilityRollforwardLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Line Items] for Restructuring Liability Rollforward [Table]", "label": "Restructuring Liability Rollforward [Line Items]", "terseLabel": "Restructuring Liability Rollforward [Line Items]" } } }, "localname": "RestructuringLiabilityRollforwardLineItems", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "stringItemType" }, "grpn_RestructuringLiabilityRollforwardRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Restructuring Liability Rollforward [Roll Forward]", "label": "Restructuring Liability Rollforward [Roll Forward]", "terseLabel": "Restructuring Liability Rollforward [Roll Forward]" } } }, "localname": "RestructuringLiabilityRollforwardRollForward", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "stringItemType" }, "grpn_RestructuringLiabilityRollforwardTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Restructuring Liability Rollforward [Table]", "label": "Restructuring Liability Rollforward [Table]", "terseLabel": "Restructuring Liability Rollforward [Table]" } } }, "localname": "RestructuringLiabilityRollforwardTable", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "stringItemType" }, "grpn_RevenuefromContractwithCustomersRevenueconstrainedandtoberecognizedinfutureperiods": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Revenue from Contract with Customers, Revenue constrained and to be recognized in future periods", "label": "Revenue from Contract with Customers, Revenue constrained and to be recognized in future periods", "terseLabel": "Revenue from Contract with Customers, Revenue constrained and to be recognized in future periods" } } }, "localname": "RevenuefromContractwithCustomersRevenueconstrainedandtoberecognizedinfutureperiods", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "grpn_ScheduleofAccruedMerchantandSupplierPayablesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Table Text Block] for Schedule of Accrued Merchant and Supplier Payables [Table]", "label": "Schedule of Accrued Merchant and Supplier Payables [Table Text Block]", "terseLabel": "Schedule of Accrued Merchant and Supplier Payables" } } }, "localname": "ScheduleofAccruedMerchantandSupplierPayablesTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "grpn_ScheduleofConvertibleDebtInterestExpenseTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule of Convertible Debt Interest Expense [Table Text Block]", "label": "Schedule of Convertible Debt Interest Expense [Table Text Block]", "terseLabel": "Schedule of Convertible Debt Interest Expense" } } }, "localname": "ScheduleofConvertibleDebtInterestExpenseTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsTables" ], "xbrltype": "textBlockItemType" }, "grpn_ScheduleofEquityMethodInvestmentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule of Equity Method Investments [Abstract]", "label": "Schedule of Equity Method Investments [Abstract]" } } }, "localname": "ScheduleofEquityMethodInvestmentsAbstract", "nsuri": "http://www.groupon.com/20191231", "xbrltype": "stringItemType" }, "grpn_ScheduleofGainLossonBusinessDispositionsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Table Text Block] for Schedule of Gain (Loss) on Business Dispositions [Table]", "label": "Schedule of Gain (Loss) on Business Dispositions [Table Text Block]", "verboseLabel": "Schedule of Gain (Loss) on Business Dispositions" } } }, "localname": "ScheduleofGainLossonBusinessDispositionsTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsTables" ], "xbrltype": "textBlockItemType" }, "grpn_ScheduleofUnrecognizedTaxBenefitsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule of Unrecognized Tax Benefits [Table Text Block]", "label": "Schedule of Unrecognized Tax Benefits [Table Text Block]", "terseLabel": "Summary of Unrecognized Tax Benefits" } } }, "localname": "ScheduleofUnrecognizedTaxBenefitsTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "grpn_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsCostOfEquityRate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Cost Of Equity Rate", "label": "Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Cost Of Equity Rate", "terseLabel": "Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Cost Of Equity Rate" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsCostOfEquityRate", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "grpn_SharesIssuedToSettleLiabilityClassifiedAwards": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Shares issued to settle liability-classified awards", "label": "Shares issued to settle liability-classified awards", "terseLabel": "Shares issued to settle liability-classified awards" } } }, "localname": "SharesIssuedToSettleLiabilityClassifiedAwards", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "grpn_SharesIssuedToSettleLiabilityClassifiedAwardsNumberOfShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Shares Issued To Settle Liability-Classified Awards, Number Of Shares", "label": "Shares Issued To Settle Liability-Classified Awards, Number Of Shares", "terseLabel": "Shares issued to settle liability-classified awards (in shares)" } } }, "localname": "SharesIssuedToSettleLiabilityClassifiedAwardsNumberOfShares", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "grpn_SupplementalCashFlowInformationRelatedtoLeasesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Supplemental Cash Flow Information Related to Leases [Table Text Block]", "label": "Supplemental Cash Flow Information Related to Leases [Table Text Block]", "terseLabel": "Schedule of Supplemental Cash Flow Information" } } }, "localname": "SupplementalCashFlowInformationRelatedtoLeasesTableTextBlock", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "grpn_SupplementalConsolidatedBalanceSheetStatementofOperationsInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Supplemental Consolidated Balance Sheet & Statement of Operations Information [Abstract]", "label": "Supplemental Consolidated Balance Sheet & Statement of Operations Information [Abstract]" } } }, "localname": "SupplementalConsolidatedBalanceSheetStatementofOperationsInformationAbstract", "nsuri": "http://www.groupon.com/20191231", "xbrltype": "stringItemType" }, "grpn_TaxShortfallsonStockbasedCompensation": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 9.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Tax Shortfalls on Stock-based Compensation", "label": "Tax Shortfalls on Stock-based Compensation", "negatedLabel": "Tax shortfalls on stock-based compensation awards" } } }, "localname": "TaxShortfallsonStockbasedCompensation", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "grpn_TravelMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Travel [Member]", "label": "Travel [Member]", "terseLabel": "Travel" } } }, "localname": "TravelMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "grpn_UnrestrictedCashCovenant": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Unrestricted Cash Covenant", "label": "Unrestricted Cash Covenant", "terseLabel": "Unrestricted cash covenant amount" } } }, "localname": "UnrestrictedCashCovenant", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "grpn_UptakeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Uptake [Member]", "label": "Uptake [Member]", "terseLabel": "Uptake" } } }, "localname": "UptakeMember", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "domainItemType" }, "grpn_ValuationAllowanceRecognizedAgainstLossCarryforwards": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Valuation Allowance Recognized Against Loss Carryforwards", "label": "Valuation Allowance Recognized Against Loss Carryforwards", "terseLabel": "Valuation Allowance Recognized Against Loss Carryforwards" } } }, "localname": "ValuationAllowanceRecognizedAgainstLossCarryforwards", "nsuri": "http://www.groupon.com/20191231", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "grpn_VariableInterestEntityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Variable Interest Entity [Abstract]", "label": "Variable Interest Entity [Abstract]" } } }, "localname": "VariableInterestEntityAbstract", "nsuri": "http://www.groupon.com/20191231", "xbrltype": "stringItemType" }, "invest_InvestmentAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investment [Axis]", "terseLabel": "Investment [Axis]" } } }, "localname": "InvestmentAxis", "nsuri": "http://xbrl.sec.gov/invest/2013-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "stringItemType" }, "invest_InvestmentDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investment [Domain]", "terseLabel": "Investment [Domain]" } } }, "localname": "InvestmentDomain", "nsuri": "http://xbrl.sec.gov/invest/2013-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "domainItemType" }, "invest_InvestmentIssuerAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investment Issuer [Axis]", "terseLabel": "Investment Issuer [Axis]" } } }, "localname": "InvestmentIssuerAxis", "nsuri": "http://xbrl.sec.gov/invest/2013-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "invest_InvestmentIssuerDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investment Issuer [Domain]", "terseLabel": "Investment Issuer [Domain]" } } }, "localname": "InvestmentIssuerDomain", "nsuri": "http://xbrl.sec.gov/invest/2013-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_CondensedStatementOfComprehensiveIncomeTable": { "auth_ref": [ "r185", "r481", "r656" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about condensed statement of comprehensive income (loss) including, but not limited to, statements of comprehensive income (loss) of consolidated entities and consolidation eliminations.", "label": "Condensed Statement of Comprehensive Income [Table]", "terseLabel": "Condensed Statement of Comprehensive Income [Table]" } } }, "localname": "CondensedStatementOfComprehensiveIncomeTable", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "stringItemType" }, "srt_CondensedStatementOfIncomeCaptionsLineItems": { "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": "Condensed Statement of Income Captions [Line Items]", "terseLabel": "Condensed Statement of Income Captions [Line Items]" } } }, "localname": "CondensedStatementOfIncomeCaptionsLineItems", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "stringItemType" }, "srt_EquityMethodInvesteeNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of investment, including named security. Excludes consolidated entity.", "label": "Investment, Name [Domain]", "terseLabel": "Investment, Name [Domain]" } } }, "localname": "EquityMethodInvesteeNameDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "srt_LitigationCaseAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of judicial proceeding, alternative dispute resolution or claim.", "label": "Litigation Case [Axis]", "terseLabel": "Litigation Case [Axis]" } } }, "localname": "LitigationCaseAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "stringItemType" }, "srt_LitigationCaseTypeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Judicial proceeding, alternative dispute resolution or claim. For example, but not limited to, name of case, category of litigation, or other differentiating information.", "label": "Litigation Case [Domain]", "terseLabel": "Litigation Case [Domain]" } } }, "localname": "LitigationCaseTypeDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Upper limit of the provided range.", "label": "Maximum [Member]", "terseLabel": "Maximum", "verboseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lower limit of the provided range.", "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_NorthAmericaMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Continent of North America.", "label": "North America [Member]", "terseLabel": "North America", "verboseLabel": "North America" } } }, "localname": "NorthAmericaMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r237", "r371", "r374", "r632", "r633" ], "lang": { "en-US": { "role": { "documentation": "Information by product and service, or group of similar products and similar services.", "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Product or service, or a group of similar products or similar services.", "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_RestatementAdjustmentMember": { "auth_ref": [ "r190", "r192", "r193", "r194" ], "lang": { "en-US": { "role": { "documentation": "Effect of a correction of an error, other prior year adjustment, or application of a new accounting pronouncement on a financial statement line item or any per share amounts. The cumulative effect of the change on retained earnings or net assets in the statement of financial position would also be represented under this domain member.", "label": "Restatement Adjustment [Member]", "terseLabel": "Restatement Adjustment" } } }, "localname": "RestatementAdjustmentMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "srt_RestatementAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by revision of previously issued financial statements.", "label": "Restatement [Axis]", "terseLabel": "Restatement [Axis]" } } }, "localname": "RestatementAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "srt_RestatementDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revision of previously issued financial statements.", "label": "Restatement [Domain]", "terseLabel": "Restatement [Domain]" } } }, "localname": "RestatementDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis": { "auth_ref": [ "r265" ], "lang": { "en-US": { "role": { "documentation": "Information by name of investment, including named security. Excludes consolidated entity.", "label": "Investment, Name [Axis]", "terseLabel": "Investment, Name [Axis]" } } }, "localname": "ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock": { "auth_ref": [ "r187", "r657" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]", "terseLabel": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS" } } }, "localname": "ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccounts" ], "xbrltype": "textBlockItemType" }, "srt_ValuationAndQualifyingAccountsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]" } } }, "localname": "ValuationAndQualifyingAccountsAbstract", "nsuri": "http://fasb.org/srt/2019-01-31", "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureLineItems": { "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": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureLineItems", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureTable": { "auth_ref": [ "r187", "r657" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureTable", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "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": [ "r376" ], "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": "Accounting Standards Update 2014-09" } } }, "localname": "AccountingStandardsUpdate201409Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdate201602Member": { "auth_ref": [ "r544" ], "lang": { "en-US": { "role": { "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).", "label": "Accounting Standards Update 2016-02 [Member]", "terseLabel": "Accounting Standards Update 2016-02" } } }, "localname": "AccountingStandardsUpdate201602Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdate201616Member": { "auth_ref": [ "r454", "r455" ], "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": "Accounting Standards Update 2016-16 [Member]" } } }, "localname": "AccountingStandardsUpdate201616Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdate201618Member": { "auth_ref": [ "r173" ], "lang": { "en-US": { "role": { "documentation": "Accounting Standards Update 2016-18 Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force).", "label": "Accounting Standards Update 2016-18 [Member]", "terseLabel": "Accounting Standards Update 2016-18 [Member]" } } }, "localname": "AccountingStandardsUpdate201618Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountsPayableCurrent": { "auth_ref": [ "r78" ], "calculation": { "http://www.groupon.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", "terseLabel": "Accounts payable" } } }, "localname": "AccountsPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableNetCurrent": { "auth_ref": [ "r29", "r62", "r240", "r241", "r372" ], "calculation": { "http://www.groupon.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", "terseLabel": "Accounts receivable, net" } } }, "localname": "AccountsReceivableNetCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedIncomeTaxesNoncurrent": { "auth_ref": [ "r56", "r599", "r618" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.", "label": "Accrued Income Taxes, Noncurrent", "terseLabel": "Contingent income tax liabilities" } } }, "localname": "AccruedIncomeTaxesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedLiabilitiesAndOtherLiabilities": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.", "label": "Accrued Liabilities and Other Liabilities", "terseLabel": "Accrued expenses and other current liabilities" } } }, "localname": "AccruedLiabilitiesAndOtherLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedLiabilitiesCurrent": { "auth_ref": [ "r82" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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", "totalLabel": "Total accrued expenses and other current liabilities" } } }, "localname": "AccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedMarketingCostsCurrent": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accrued Marketing Costs, Current", "terseLabel": "Accrued marketing" } } }, "localname": "AccruedMarketingCostsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember": { "auth_ref": [ "r105", "r111", "r115", "r382", "r492" ], "lang": { "en-US": { "role": { "documentation": "Accumulated other comprehensive (income) loss related to defined benefit plans attributable to the parent.", "label": "Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]", "terseLabel": "Accumulated Defined Benefit Plans Adjustment Attributable to Parent" } } }, "localname": "AccumulatedDefinedBenefitPlansAdjustmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r76", "r309" ], "calculation": { "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails": { "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", "negatedTerseLabel": "Less: accumulated depreciation and amortization" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember": { "auth_ref": [ "r102", "r103", "r104", "r111", "r115" ], "lang": { "en-US": { "role": { "documentation": "Accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), attributable to parent.", "label": "AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]", "terseLabel": "Unrealized gain (loss) on available-for-sale securities" } } }, "localname": "AccumulatedNetUnrealizedInvestmentGainLossMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": { "auth_ref": [ "r110" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax", "periodEndLabel": "Unrealized gain (loss) on available-for-sale securities, ending balance", "periodStartLabel": "Unrealized gain (loss) on available-for-sale securities, beginning balance" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax": { "auth_ref": [ "r106", "r111" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).", "label": "Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax", "terseLabel": "Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax": { "auth_ref": [ "r99", "r108", "r110", "r111", "r517", "r524", "r529" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.", "label": "Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax", "periodEndLabel": "Foreign currency translation adjustments, ending balance", "periodStartLabel": "Foreign currency translation adjustments, beginning balance" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems": { "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": "Accumulated Other Comprehensive Income (Loss) [Line Items]", "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Line Items]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r108", "r110", "r111" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "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 income (loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about components of accumulated other comprehensive income (loss).", "label": "Accumulated Other Comprehensive Income (Loss) [Table]", "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Table]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r107", "r111", "r115", "r492" ], "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 Income (Loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedTranslationAdjustmentMember": { "auth_ref": [ "r100", "r111", "r115", "r492" ], "lang": { "en-US": { "role": { "documentation": "Accumulated other comprehensive income (loss) resulting from 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, attributable to the parent.", "label": "Accumulated Foreign Currency Adjustment Attributable to Parent [Member]", "terseLabel": "Foreign currency translation adjustments" } } }, "localname": "AccumulatedTranslationAdjustmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AdditionalFinancialInformationDisclosureTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The entire disclosures of supplemental information, including descriptions and amounts, related to the balance sheet, income statement, and/or cash flow statement.", "label": "Additional Financial Information Disclosure [Text Block]", "terseLabel": "SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION" } } }, "localname": "AdditionalFinancialInformationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformation" ], "xbrltype": "textBlockItemType" }, "us-gaap_AdditionalPaidInCapital": { "auth_ref": [ "r63" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "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. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.", "label": "Additional Paid in Capital", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapital", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.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.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": { "auth_ref": [ "r189" ], "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.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Decrease for Tax Withholding Obligation", "negatedTerseLabel": "Tax withholdings related to net share settlements of stock-based compensation awards" } } }, "localname": "AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt": { "auth_ref": [ "r346" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.", "label": "Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt", "terseLabel": "Equity component of convertible debt" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for restricted stock unit under share-based payment arrangement.", "label": "APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition", "terseLabel": "Vesting of restricted stock units and performance share units" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "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 income (loss) to net cash provided by operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AmortizationOfDebtDiscountPremium": { "auth_ref": [ "r138", "r164", "r531" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 }, "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_InterestExpenseDebt", "weight": 1.0 } }, "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 on convertible senior notes", "verboseLabel": "Amortization of debt discount" } } }, "localname": "AmortizationOfDebtDiscountPremium", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfDeferredCharges": { "auth_ref": [ "r136" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of amortization of deferred charges applied against earnings during the period.", "label": "Amortization of Deferred Charges", "terseLabel": "Amortization of Deferred Charges", "verboseLabel": "Amortization" } } }, "localname": "AmortizationOfDeferredCharges", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r164", "r294", "r300" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 } }, "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 acquired intangible assets" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r201" ], "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", "terseLabel": "Antidilutive securities excluded from computation of earnings per share (in shares)" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "auth_ref": [ "r201" ], "lang": { "en-US": { "role": { "documentation": "Information by type of antidilutive security.", "label": "Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities [Axis]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": { "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": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]", "terseLabel": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "auth_ref": [ "r201" ], "lang": { "en-US": { "role": { "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.", "label": "Antidilutive Securities, Name [Domain]", "terseLabel": "Antidilutive Securities, Name [Domain]" } } }, "localname": "AntidilutiveSecuritiesNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Assets": { "auth_ref": [ "r227", "r597", "r617" ], "calculation": { "http://www.groupon.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": "Assets", "totalLabel": "Total Assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r31", "r33", "r98" ], "calculation": { "http://www.groupon.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": "Assets, Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets, Current [Abstract]", "terseLabel": "Current assets:" } } }, "localname": "AssetsCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsNoncurrent": { "auth_ref": [ "r44", "r45", "r46", "r47", "r48", "r49", "r50", "r51" ], "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 after one year or beyond the normal operating cycle, if longer.", "label": "Assets, Noncurrent", "terseLabel": "Assets, Noncurrent" } } }, "localname": "AssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate": { "auth_ref": [ "r581" ], "lang": { "en-US": { "role": { "documentation": "Discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer regardless of when the transfer occurred.", "label": "Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate", "terseLabel": "Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate" } } }, "localname": "AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_AvailableForSaleSecurities": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails": { "order": 2.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesAmortizedCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.", "label": "Available-for-sale Securities", "negatedLabel": "Available-for-sale securities, Fair Value", "terseLabel": "Available-for-sale Securities" } } }, "localname": "AvailableForSaleSecurities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "auth_ref": [ "r252" ], "calculation": { "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails": { "order": 1.0, "parentTag": "us-gaap_AvailableForSaleSecuritiesAmortizedCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.", "label": "Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax", "terseLabel": "Available-for-sale securities, Gross Unrealized Gain" } } }, "localname": "AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesAmortizedCost": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.", "label": "Available-for-sale Securities, Amortized Cost Basis", "totalLabel": "Available-for-sale securities, Amortized Cost" } } }, "localname": "AvailableForSaleSecuritiesAmortizedCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r249", "r251", "r278" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale", "terseLabel": "Debt Securities, Available-for-sale" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r390", "r413" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by location on balance sheet (statement of financial position).", "label": "Balance Sheet Location [Axis]", "terseLabel": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r501", "r502" ], "lang": { "en-US": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]", "terseLabel": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r465", "r466" ], "lang": { "en-US": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]", "terseLabel": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionLineItems": { "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": "Business Acquisition [Line Items]", "terseLabel": "Business Acquisition [Line Items]" } } }, "localname": "BusinessAcquisitionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired": { "auth_ref": [ "r464" ], "lang": { "en-US": { "role": { "documentation": "Percentage of voting equity interests acquired at the acquisition date in the business combination.", "label": "Business Acquisition, Percentage of Voting Interests Acquired", "terseLabel": "Percentage of outstanding shares acquired" } } }, "localname": "BusinessAcquisitionPercentageOfVotingInterestsAcquired", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_BusinessCombinationConsiderationTransferred1": { "auth_ref": [ "r473", "r474", "r476" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.", "label": "Business Combination, Consideration Transferred", "terseLabel": "Total acquisition price" } } }, "localname": "BusinessCombinationConsiderationTransferred1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationContingentConsiderationLiability": { "auth_ref": [ "r472", "r475", "r479" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liability recognized arising from contingent consideration in a business combination.", "label": "Business Combination, Contingent Consideration, Liability", "terseLabel": "Business Combination, Contingent Consideration, Liability" } } }, "localname": "BusinessCombinationContingentConsiderationLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationDisclosureTextBlock": { "auth_ref": [ "r480" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).", "label": "Business Combination Disclosure [Text Block]", "terseLabel": "BUSINESS COMBINATIONS" } } }, "localname": "BusinessCombinationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinations" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets": { "auth_ref": [ "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets", "terseLabel": "Other intangible assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": { "auth_ref": [ "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. 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.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents", "terseLabel": "Cash and cash equivalents" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets": { "auth_ref": [ "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets", "terseLabel": "Prepaid expenses and other current assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables": { "auth_ref": [ "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables", "terseLabel": "Accounts receivable" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable": { "auth_ref": [ "r468" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable", "terseLabel": "Accounts payable" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of intangible assets, excluding goodwill, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill", "terseLabel": "Intangible assets (1) :", "verboseLabel": "Intangible assets acquired" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities": { "auth_ref": [ "r468" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities", "terseLabel": "Total liabilities assumed" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther": { "auth_ref": [ "r468" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other", "terseLabel": "Other non-current liabilities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": { "auth_ref": [ "r467", "r468" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of property, plant, and equipment recognized as of the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment", "terseLabel": "Property, equipment and software" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Business Combinations [Abstract]" } } }, "localname": "BusinessCombinationsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_BusinessCombinationsPolicy": { "auth_ref": [ "r174", "r463" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for completed business combinations (purchase method, acquisition method or combination of entities under common control). This accounting policy may include a general discussion of the purchase method or acquisition method of accounting (including for example, the treatment accorded contingent consideration, the identification of assets and liabilities, the purchase price allocation process, how the fair values of acquired assets and liabilities are determined) and the entity's specific application thereof. An entity that acquires another entity in a leveraged buyout transaction generally discloses the accounting policy followed by the acquiring entity in determining the basis used to value its interest in the acquired entity, and the rationale for that accounting policy.", "label": "Business Combinations Policy [Policy Text Block]", "terseLabel": "Business Combinations" } } }, "localname": "BusinessCombinationsPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock": { "auth_ref": [ "r27", "r188", "r220" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Business Description and Basis of Presentation [Text Block]", "terseLabel": "DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION" } } }, "localname": "BusinessDescriptionAndBasisOfPresentationTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DescriptionOfBusinessAndBasisOfPresentation" ], "xbrltype": "textBlockItemType" }, "us-gaap_CapitalLeaseObligations": { "auth_ref": [ "r54", "r543", "r619" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetailsCalc2": { "order": 2.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.", "label": "Capital Lease Obligations", "terseLabel": "Total long-term capital lease obligations" } } }, "localname": "CapitalLeaseObligations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeaseObligationsCurrent": { "auth_ref": [ "r52", "r541", "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetailsCalc2": { "order": 1.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of capital lease obligation due within one year or the normal operating cycle, if longer.", "label": "Capital Lease Obligations, Current", "negatedTerseLabel": "Less: Current portion of capital lease obligations" } } }, "localname": "CapitalLeaseObligationsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeaseObligationsIncurred": { "auth_ref": [ "r169", "r170" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in lease obligation from new lease.", "label": "Lease Obligation Incurred", "terseLabel": "Equipment acquired under capital lease arrangements (2)" } } }, "localname": "CapitalLeaseObligationsIncurred", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasedAssetsGross": { "auth_ref": [ "r540" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.", "label": "Capital Leased Assets, Gross", "terseLabel": "Capital Leased Assets, Gross" } } }, "localname": "CapitalLeasedAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDue": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 1.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases.", "label": "Capital Leases, Future Minimum Payments Due", "totalLabel": "Total minimum lease payments" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 1.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due, Next Twelve Months", "terseLabel": "2019" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 5.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due in Five Years", "terseLabel": "2023" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueInFiveYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 4.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due in Four Years", "terseLabel": "2022" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueInFourYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 3.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due in Three Years", "terseLabel": "2021" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueInThreeYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 2.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due in Two Years", "terseLabel": "2020" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueInTwoYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 6.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of minimum lease payments for capital leases 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": "Capital Leases, Future Minimum Payments Due Thereafter", "terseLabel": "Thereafter" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsDueThereafter", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 2.0, "parentTag": "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount necessary to reduce net minimum lease payments to present value for capital leases.", "label": "Capital Leases, Future Minimum Payments, Interest Included in Payments", "negatedTerseLabel": "Less: Amount representing interest" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments": { "auth_ref": [ "r543" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.groupon.com/role/LeasesFutureLeaseAmountDetailsCalc2": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.", "label": "Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments", "totalLabel": "Present value of net minimum capital lease payments" } } }, "localname": "CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesIncomeStatementAmortizationExpense": { "auth_ref": [ "r542", "r645" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The charge for the use of long-lived depreciable capital leased assets for the period.", "label": "Capital Leases, Income Statement, Amortization Expense", "terseLabel": "Capital Leases, Income Statement, Amortization Expense" } } }, "localname": "CapitalLeasesIncomeStatementAmortizationExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalUnitClassAMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Class A of capital units, which are a type of ownership interest in a corporation.", "label": "Capital Unit, Class A [Member]", "terseLabel": "Capital Unit, Class A [Member]" } } }, "localname": "CapitalUnitClassAMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CapitalUnitClassDomain": { "auth_ref": [ "r635" ], "lang": { "en-US": { "role": { "documentation": "Description of the type or class of capital units or capital shares.", "label": "Capital Unit, Class [Domain]", "terseLabel": "Capital Unit, Class [Domain]" } } }, "localname": "CapitalUnitClassDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CapitalUnitsByClassAxis": { "auth_ref": [ "r634", "r636" ], "lang": { "en-US": { "role": { "documentation": "Information by type or class of the entity's capital units.", "label": "Capital Units by Class [Axis]", "terseLabel": "Capital Units by Class [Axis]" } } }, "localname": "CapitalUnitsByClassAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CapitalizedComputerSoftwareAmortization1": { "auth_ref": [ "r647", "r648" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for amortization of capitalized computer software costs.", "label": "Capitalized Computer Software, Amortization", "terseLabel": "Capitalized Computer Software, Amortization" } } }, "localname": "CapitalizedComputerSoftwareAmortization1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalizedComputerSoftwareNet": { "auth_ref": [ "r646" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.", "label": "Capitalized Computer Software, Net", "terseLabel": "Capitalized Computer Software, Net" } } }, "localname": "CapitalizedComputerSoftwareNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r28", "r72", "r166" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "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", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r43", "r167", "r174" ], "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, Cash Equivalents and Restricted Cash" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r160", "r166", "r172" ], "calculation": { "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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, cash equivalents and restricted cash, end of period", "periodStartLabel": "Cash, cash equivalents and restricted cash, beginning of period", "terseLabel": "Cash, cash equivalents and restricted cash", "totalLabel": "Cash, cash equivalents and restricted cash" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r160", "r523" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "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": "Net increase (decrease) in cash, cash equivalents and restricted cash" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]", "terseLabel": "Non-cash investing and financing activities" } } }, "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations": { "auth_ref": [ "r20", "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) of investing activities of 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": "Cash Provided by (Used in) Investing Activities, Discontinued Operations", "terseLabel": "Net cash provided by (used in) investing activities from discontinued operations" } } }, "localname": "CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations": { "auth_ref": [ "r20", "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Cash Provided by (Used in) Operating Activities, Discontinued Operations", "terseLabel": "Net cash provided by (used in) operating activities from discontinued operations" } } }, "localname": "CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ClassOfStockDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.", "label": "Class of Stock [Domain]", "terseLabel": "Class of Stock [Domain]" } } }, "localname": "ClassOfStockDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfStockLineItems": { "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": "Class of Stock [Line Items]", "terseLabel": "Class of Stock [Line Items]" } } }, "localname": "ClassOfStockLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": { "auth_ref": [ "r184" ], "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 of Warrants or Rights", "verboseLabel": "Exercise price (in usd per share)" } } }, "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r87", "r334", "r605", "r624" ], "calculation": { "http://www.groupon.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 (see Note 11)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.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": [ "r333", "r341" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "COMMITMENTS AND CONTINGENCIES" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonClassAMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Classification of common stock representing ownership interest in a corporation.", "label": "Common Class A [Member]", "terseLabel": "Common Class A [Member]" } } }, "localname": "CommonClassAMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r91" ], "lang": { "en-US": { "role": { "documentation": "Aggregate number of common shares reserved for future issuance.", "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Common Stock, Capital Shares Reserved for Future Issuance" } } }, "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r61" ], "lang": { "en-US": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value (in usd per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r61" ], "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", "terseLabel": "Common stock, shares authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r61" ], "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", "terseLabel": "Common stock, shares issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r61", "r356" ], "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", "terseLabel": "Common stock, shares outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r61" ], "calculation": { "http://www.groupon.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", "terseLabel": "Common stock, par value $0.0001 per share, 2,010,000,000 shares authorized; 771,697,087 shares issued and 565,814,732 shares outstanding at December 31, 2019; 760,939,440 shares issued and 569,084,312 shares outstanding at December 31, 2018" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommonStockVotingRights": { "auth_ref": [ "r357" ], "lang": { "en-US": { "role": { "documentation": "Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.", "label": "Common Stock, Voting Rights", "terseLabel": "Common Stock, Voting Rights" } } }, "localname": "CommonStockVotingRights", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r118", "r120", "r121" ], "calculation": { "http://www.groupon.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, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive income (loss) attributable to Groupon, Inc." } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest": { "auth_ref": [ "r118", "r120", "r486", "r487", "r497" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": -1.0 }, "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest", "negatedTerseLabel": "Comprehensive income attributable to noncontrolling interests" } } }, "localname": "ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r118", "r120", "r485", "r497" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "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 income (loss)" } } }, "localname": "ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "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 hardware" } } }, "localname": "ComputerEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConsolidationPolicyTextBlock": { "auth_ref": [ "r174", "r488", "r498", "r499" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.", "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Principles of Consolidation" } } }, "localname": "ConsolidationPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock": { "auth_ref": [ "r369" ], "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": "Deferred Revenue, by Arrangement, Disclosure" } } }, "localname": "ContractWithCustomerAssetAndLiabilityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ContractWithCustomerLiability": { "auth_ref": [ "r367", "r368", "r372" ], "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.", "label": "Contract with Customer, Liability", "terseLabel": "Deferred Revenue" } } }, "localname": "ContractWithCustomerLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": { "auth_ref": [ "r373" ], "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": "Deferred Revenue, Revenue Recognized" } } }, "localname": "ContractWithCustomerLiabilityRevenueRecognized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConvertibleDebt": { "auth_ref": [ "r54", "r601", "r619" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.", "label": "Convertible Debt", "terseLabel": "Aggregate principal amount of convertible senior notes" } } }, "localname": "ConvertibleDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConvertibleDebtFairValueDisclosures": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.", "label": "Convertible Debt, Fair Value Disclosures", "terseLabel": "Estimated fair value of convertible notes", "verboseLabel": "Convertible Debt, Fair Value Disclosures" } } }, "localname": "ConvertibleDebtFairValueDisclosures", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConvertibleDebtMember": { "auth_ref": [ "r345" ], "lang": { "en-US": { "role": { "documentation": "Borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.", "label": "Convertible Debt [Member]", "terseLabel": "Convertible Debt [Member]" } } }, "localname": "ConvertibleDebtMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConvertibleDebtNoncurrent": { "auth_ref": [ "r85" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.", "label": "Convertible Debt, Noncurrent", "terseLabel": "Convertible senior notes, net" } } }, "localname": "ConvertibleDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConvertibleDebtSecuritiesMember": { "auth_ref": [ "r379" ], "lang": { "en-US": { "role": { "documentation": "Debt securities that can be exchanged for equity of the debt issuer at the option of the issuer or the holder.", "label": "Convertible Debt Securities [Member]", "terseLabel": "Convertible Debt Securities" } } }, "localname": "ConvertibleDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConvertibleDebtTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components.", "label": "Convertible Debt [Table Text Block]", "terseLabel": "Schedule of Notes" } } }, "localname": "ConvertibleDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConvertibleLongTermNotesPayable": { "auth_ref": [ "r85" ], "calculation": { "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.", "label": "Convertible Notes Payable, Noncurrent", "totalLabel": "Net carrying amount of liability component" } } }, "localname": "ConvertibleLongTermNotesPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostAndEquityMethodInvestmentsDisclosureTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for cost method and equity method investments included basis, impairment losses, recognized or unrecognized gains (losses).", "label": "Cost and Equity Method Investments Disclosure [Text Block]", "terseLabel": "INVESTMENTS" } } }, "localname": "CostAndEquityMethodInvestmentsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/Investments" ], "xbrltype": "textBlockItemType" }, "us-gaap_CostOfGoodsAndServicesSold": { "auth_ref": [ "r134" ], "calculation": { "http://www.groupon.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", "negatedTerseLabel": "Total cost of revenue", "terseLabel": "Total cost of revenue" } } }, "localname": "CostOfGoodsAndServicesSold", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostOfRevenue": { "auth_ref": [ "r135" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.", "label": "Cost of Revenue", "terseLabel": "Cost of Revenue" } } }, "localname": "CostOfRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostOfRevenueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Cost of Revenue [Abstract]", "terseLabel": "Cost of revenue:" } } }, "localname": "CostOfRevenueAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "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 Sales" } } }, "localname": "CostOfSalesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "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 adjustment" } } }, "localname": "CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1": { "auth_ref": [ "r194" ], "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", "negatedTerseLabel": "Cumulative effect of change in accounting principle, net of tax", "terseLabel": "Cumulative effect of change in accounting principle, net of tax" } } }, "localname": "CumulativeEffectOnRetainedEarningsNetOfTax1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentIncomeTaxExpenseBenefit": { "auth_ref": [ "r179", "r451", "r456" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails": { "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)", "terseLabel": "Total current taxes" } } }, "localname": "CurrentIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CustomerRefundLiabilityCurrent": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.", "label": "Customer Refund Liability, Current", "terseLabel": "Refunds reserve" } } }, "localname": "CustomerRefundLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CustomerRelationshipsMember": { "auth_ref": [ "r470" ], "lang": { "en-US": { "role": { "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.", "label": "Customer Relationships [Member]", "terseLabel": "Customer relationships", "verboseLabel": "Customer Relationships [Member]" } } }, "localname": "CustomerRelationshipsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtConversionConvertedInstrumentAmount1": { "auth_ref": [ "r169", "r171" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Debt Conversion, Converted Instrument, Amount", "terseLabel": "Principal amount converted initially" } } }, "localname": "DebtConversionConvertedInstrumentAmount1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtConversionConvertedInstrumentSharesIssued1": { "auth_ref": [ "r169", "r171" ], "lang": { "en-US": { "role": { "documentation": "The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or payments in the period.", "label": "Debt Conversion, Converted Instrument, Shares Issued", "terseLabel": "Number of shares converted (in shares)" } } }, "localname": "DebtConversionConvertedInstrumentSharesIssued1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "sharesItemType" }, "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": [ "r351" ], "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": "FINANCING ARRANGEMENTS" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangements" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r52", "r53", "r54", "r598", "r601", "r616" ], "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent": { "auth_ref": [ "r347" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.", "label": "Debt Instrument, Convertible, Carrying Amount of Equity Component", "terseLabel": "Net carrying amount of equity component" } } }, "localname": "DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentConvertibleConversionPrice1": { "auth_ref": [ "r348" ], "lang": { "en-US": { "role": { "documentation": "The price per share of the conversion feature embedded in the debt instrument.", "label": "Debt Instrument, Convertible, Conversion Price", "terseLabel": "Conversion price (in usd per share)" } } }, "localname": "DebtInstrumentConvertibleConversionPrice1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.", "label": "Debt Instrument, Convertible, Threshold Consecutive Trading Days", "terseLabel": "Consecutive trading days" } } }, "localname": "DebtInstrumentConvertibleThresholdConsecutiveTradingDays1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.", "label": "Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger", "terseLabel": "Closing price of stock, trigger price (in usd per share)" } } }, "localname": "DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "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": "Number of threshold trading days" } } }, "localname": "DebtInstrumentConvertibleThresholdTradingDays", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "integerItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r532", "r534" ], "calculation": { "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails": { "order": 1.0, "parentTag": "us-gaap_ConvertibleLongTermNotesPayable", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "Debt Instrument, Face Amount", "terseLabel": "Principal amount" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateEffectivePercentage": { "auth_ref": [ "r84", "r349", "r532" ], "lang": { "en-US": { "role": { "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.", "label": "Debt Instrument, Interest Rate, Effective Percentage", "terseLabel": "Effective interest rate" } } }, "localname": "DebtInstrumentInterestRateEffectivePercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r84" ], "lang": { "en-US": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "Stated interest rate" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "percentItemType" }, "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r85" ], "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r85", "r182", "r357", "r360", "r361", "r362", "r531", "r532", "r534", "r614" ], "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentUnamortizedDiscount": { "auth_ref": [ "r531", "r534" ], "calculation": { "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails": { "order": 2.0, "parentTag": "us-gaap_ConvertibleLongTermNotesPayable", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after accumulated amortization, of debt discount.", "label": "Debt Instrument, Unamortized Discount", "negatedTerseLabel": "Less: debt discount", "terseLabel": "Debt Instrument, Unamortized Discount" } } }, "localname": "DebtInstrumentUnamortizedDiscount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtRelatedCommitmentFeesAndDebtIssuanceCosts": { "auth_ref": [ "r138" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Represents the charge against earnings during the period for commitment fees and debt issuance expenses.", "label": "Debt Related Commitment Fees and Debt Issuance Costs", "terseLabel": "Debt related commitment fees and issuance costs" } } }, "localname": "DebtRelatedCommitmentFeesAndDebtIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible": { "auth_ref": [ "r432" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.", "label": "Decrease in Unrecognized Tax Benefits is Reasonably Possible", "terseLabel": "Decrease in Unrecognized Tax Benefits is Reasonably Possible" } } }, "localname": "DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredCostsCurrentAndNoncurrent": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of deferred costs.", "label": "Deferred Costs", "terseLabel": "Deferred Costs" } } }, "localname": "DeferredCostsCurrentAndNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredFinanceCostsNet": { "auth_ref": [ "r77", "r533" ], "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r164", "r179", "r452", "r456" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 }, "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails": { "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)", "terseLabel": "Deferred income taxes", "verboseLabel": "Total deferred taxes" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilities": { "auth_ref": [ "r57", "r58", "r442", "r600", "r615" ], "calculation": { "http://www.groupon.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", "totalLabel": "Total deferred tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences, after deferred tax asset, and other tax liabilities expected to be paid after one year or operating cycle, if longer.", "label": "Deferred Income Taxes and Other Tax Liabilities, Noncurrent", "terseLabel": "Deferred income taxes" } } }, "localname": "DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredRentCreditNoncurrent": { "auth_ref": [ "r88", "r536" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date.", "label": "Deferred Rent Credit, Noncurrent", "terseLabel": "Deferred rent" } } }, "localname": "DeferredRentCreditNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredRevenue": { "auth_ref": [ "r68" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.", "label": "Deferred Revenue", "verboseLabel": "Deferred revenue" } } }, "localname": "DeferredRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 5.0, "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": "Intangible assets, net" } } }, "localname": "DeferredTaxAssetsGoodwillAndIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGross": { "auth_ref": [ "r443" ], "calculation": { "http://www.groupon.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": "Total deferred tax assets" } } }, "localname": "DeferredTaxAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsInvestments": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 6.0, "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 investments (excludes investments in subsidiaries and equity method investments).", "label": "Deferred Tax Assets, Investments", "terseLabel": "Investments" } } }, "localname": "DeferredTaxAssetsInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsLiabilitiesNet": { "auth_ref": [ "r446" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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, without jurisdictional netting.", "label": "Deferred Tax Assets, Net", "totalLabel": "Net deferred tax asset (liability)" } } }, "localname": "DeferredTaxAssetsLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsNet": { "auth_ref": [ "r444" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsLiabilitiesNet", "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": "Deferred tax assets, net of valuation allowance" } } }, "localname": "DeferredTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r417", "r449", "r450" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 4.0, "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 operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards", "terseLabel": "Deferred Tax Assets, Operating Loss Carryforwards", "verboseLabel": "Net operating loss and tax credit carryforwards (1)" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic": { "auth_ref": [ "r417", "r449", "r450" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards, Domestic", "terseLabel": "Deferred Tax Assets, Operating Loss Carryforwards, Domestic" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwardsDomestic", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign": { "auth_ref": [ "r417", "r449", "r450" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards, Foreign", "terseLabel": "Deferred Tax Assets, Operating Loss Carryforwards, Foreign" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwardsForeign", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal": { "auth_ref": [ "r417", "r449", "r450" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards, State and Local", "terseLabel": "Deferred Tax Assets, Operating Loss Carryforwards, State and Local" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOther": { "auth_ref": [ "r420", "r449", "r450" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 8.0, "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, classified as other.", "label": "Deferred Tax Assets, Other", "terseLabel": "Other" } } }, "localname": "DeferredTaxAssetsOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost": { "auth_ref": [ "r417", "r449", "r450" ], "calculation": { "http://www.groupon.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 share-based compensation.", "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost", "terseLabel": "Stock-based compensation" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals": { "auth_ref": [ "r418", "r449", "r450" ], "calculation": { "http://www.groupon.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 reserves and accruals.", "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals", "terseLabel": "Accrued expenses and other liabilities" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsUnrealizedCurrencyLosses": { "auth_ref": [ "r419", "r449", "r450" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 7.0, "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 unrealized losses on foreign currency transactions.", "label": "Deferred Tax Assets, Unrealized Currency Losses", "terseLabel": "Unrealized foreign currency exchange losses" } } }, "localname": "DeferredTaxAssetsUnrealizedCurrencyLosses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r445" ], "calculation": { "http://www.groupon.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", "negatedTerseLabel": "Less: Valuation allowances (1)", "terseLabel": "Deferred Tax Assets, Valuation Allowance" } } }, "localname": "DeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilities": { "auth_ref": [ "r427", "r446" ], "calculation": { "http://www.groupon.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 asset (liability)" } } }, "localname": "DeferredTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesFinancingArrangements": { "auth_ref": [ "r420", "r449", "r450" ], "calculation": { "http://www.groupon.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 financing arrangements.", "label": "Deferred Tax Liabilities, Financing Arrangements", "negatedTerseLabel": "Convertible senior notes" } } }, "localname": "DeferredTaxLiabilitiesFinancingArrangements", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPrepaidExpenses": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.", "label": "Deferred Tax Liabilities, Prepaid Expenses", "negatedTerseLabel": "Prepaid expenses and other assets" } } }, "localname": "DeferredTaxLiabilitiesPrepaidExpenses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r420", "r449", "r450" ], "calculation": { "http://www.groupon.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 taxable temporary differences from property, plant, and equipment.", "label": "Deferred Tax Liabilities, Property, Plant and Equipment", "negatedTerseLabel": "Property, equipment and software, net" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome": { "auth_ref": [ "r420", "r449", "r450" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 5.0, "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 tax deferred revenue or income classified as other.", "label": "Deferred Tax Liabilities, Tax Deferred Income", "negatedTerseLabel": "Deferred revenue" } } }, "localname": "DeferredTaxLiabilitiesTaxDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationAndAmortization": { "auth_ref": [ "r164", "r307" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.", "label": "Depreciation, Depletion and Amortization, Nonproduction", "terseLabel": "Depreciation, Depletion and Amortization, Nonproduction" } } }, "localname": "DepreciationAndAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r164", "r225" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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", "terseLabel": "Depreciation and amortization of property, equipment and software" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeCostOfHedge": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The premium (cost) of a hedge, expensed during the period.", "label": "Derivative, Cost of Hedge", "terseLabel": "Derivative, Cost of Hedge" } } }, "localname": "DerivativeCostOfHedge", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DevelopedTechnologyRightsMember": { "auth_ref": [ "r471" ], "lang": { "en-US": { "role": { "documentation": "Rights to developed technology, which can include the right to develop, use, market, sell, or offer for sale products, compounds, or intellectual property.", "label": "Developed Technology Rights [Member]", "terseLabel": "Developed technology" } } }, "localname": "DevelopedTechnologyRightsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member": { "auth_ref": [ "r375" ], "lang": { "en-US": { "role": { "documentation": "Effect in current period from application of guidance for revenue from contract with customer compared with guidance for revenue recognition applicable prior to change when using transition method for cumulative effect in period including initial date of application.", "label": "Difference between Revenue Guidance in Effect before and after Topic 606 [Member]", "terseLabel": "Difference between Revenue Guidance in Effect before and after Topic 606 [Member]" } } }, "localname": "DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r415" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "terseLabel": "COMPENSATION ARRANGEMENTS" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangements" ], "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_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax": { "auth_ref": [ "r7", "r9", "r11", "r22" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.", "label": "Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax", "terseLabel": "Loss on dispositions" } } }, "localname": "DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax [Abstract]" } } }, "localname": "DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_EarningsPerShareBasic", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.", "label": "Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share", "terseLabel": "Discontinued operations (in usd per share)" } } }, "localname": "DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_EarningsPerShareDiluted", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.", "label": "Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share", "terseLabel": "Discontinued operations (in usd per share)", "verboseLabel": "Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share" } } }, "localname": "DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation": { "auth_ref": [ "r8", "r9", "r10", "r11", "r19", "r22", "r428", "r459" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.", "label": "Discontinued Operation, Tax Effect of Discontinued Operation", "negatedTerseLabel": "Provision for income taxes", "terseLabel": "Discontinued Operations" } } }, "localname": "DiscontinuedOperationTaxEffectOfDiscontinuedOperation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DiscontinuedOperationsDisposedOfBySaleMember": { "auth_ref": [ "r3" ], "lang": { "en-US": { "role": { "documentation": "Component or group of components disposed of by sale and representing a strategic shift that has or will have a major effect on operations and financial results.", "label": "Discontinued Operations, Disposed of by Sale [Member]", "terseLabel": "Discontinued Operations, Disposed of by Sale" } } }, "localname": "DiscontinuedOperationsDisposedOfBySaleMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DisposalGroupIncludingDiscontinuedOperationAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]", "terseLabel": "Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]" } } }, "localname": "DisposalGroupIncludingDiscontinuedOperationAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses": { "auth_ref": [ "r527" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of foreign currency translation gain (loss) in the disposal group, including discontinued operation, recognized in the statement of income as a result of the sale or complete or substantially complete liquidation of an investment in a foreign entity.", "label": "Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)", "terseLabel": "Cumulative translation gain reclassified to earnings" } } }, "localname": "DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]", "terseLabel": "Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]" } } }, "localname": "DisposalGroupNotDiscontinuedOperationIncomeStatementDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock": { "auth_ref": [ "r26", "r316" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.", "label": "Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]", "terseLabel": "DISCONTINUED OPERATIONS AND OTHER BUSINESS DISPOSITIONS" } } }, "localname": "DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositions" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of disposal group.", "label": "Disposal Group Name [Domain]", "terseLabel": "Disposal Group Name [Domain]" } } }, "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share [Abstract]", "terseLabel": "Basic net income (loss) per share:" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r129", "r190", "r197", "r198", "r199", "r200", "r203", "r610", "r630" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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 net income (loss) per share (in usd per share)", "totalLabel": "Basic net income (loss) per share (in usd per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r129", "r190", "r197", "r198", "r199", "r200", "r203", "r610", "r630" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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", "totalLabel": "Diluted net income (loss) per share (in usd per share)", "verboseLabel": "Earnings Per Share, Diluted" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDilutedAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share, Diluted [Abstract]", "terseLabel": "Diluted net income (loss) per share:" } } }, "localname": "EarningsPerShareDilutedAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r204" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "terseLabel": "INCOME (LOSS) PER SHARE" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations": { "auth_ref": [ "r523" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "grpn_CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations", "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; including, but not limited to, 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, Including Disposal Group and Discontinued Operations", "terseLabel": "Effect of exchange rate changes on cash, cash equivalents and restricted cash, including cash classified within current assets of discontinued operations" } } }, "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r82" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Employee-related Liabilities, Current", "terseLabel": "Compensation and benefits" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount": { "auth_ref": [ "r411" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost capitalized for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Amount Capitalized", "terseLabel": "Share-based Payment Arrangement, Amount Capitalized" } } }, "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "auth_ref": [ "r412" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount", "terseLabel": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r412" ], "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": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "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 Benefit Costs" } } }, "localname": "EmployeeSeveranceMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EmployeeStockMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock.", "label": "Employee Stock [Member]", "terseLabel": "Employee Stock [Member]" } } }, "localname": "EmployeeStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "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": [ "r356" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityMethodInvestmentOwnershipPercentage": { "auth_ref": [ "r265" ], "lang": { "en-US": { "role": { "documentation": "The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.", "label": "Equity Method Investment, Ownership Percentage", "terseLabel": "Equity method investment, percent ownership of voting stock" } } }, "localname": "EquityMethodInvestmentOwnershipPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss": { "auth_ref": [ "r25", "r176", "r264", "r268" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of gross profit (loss) reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Gross Profit (Loss)", "terseLabel": "Equity Method Investment, Summarized Financial Information, Gross Profit (Loss)" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss": { "auth_ref": [ "r25", "r176", "r264", "r268", "r518" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Net Income (Loss)", "terseLabel": "Equity Method Investment, Summarized Financial Information, Net Income (Loss)" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue": { "auth_ref": [ "r25", "r268" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue from sale of product and rendering of service reported by equity method investee.", "label": "Equity Method Investment, Summarized Financial Information, Revenue", "terseLabel": "Equity Method Investment, Summarized Financial Information, Revenue" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestments": { "auth_ref": [ "r73", "r228", "r263" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.", "label": "Equity Method Investments", "terseLabel": "Equity method investments" } } }, "localname": "EquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentsDisclosureTextBlock": { "auth_ref": [ "r270", "r500" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.", "label": "Equity Method Investments and Joint Ventures Disclosure [Text Block]", "terseLabel": "VARIABLE INTEREST ENTITY" } } }, "localname": "EquityMethodInvestmentsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/VariableInterestEntity" ], "xbrltype": "textBlockItemType" }, "us-gaap_EquityMethodInvestmentsTextBlock": { "auth_ref": [ "r269" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.", "label": "Equity Method Investments [Table Text Block]", "verboseLabel": "Summary of Investments" } } }, "localname": "EquityMethodInvestmentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount": { "auth_ref": [ "r260" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in equity security without readily determinable fair value.", "label": "Equity Securities without Readily Determinable Fair Value, Amount", "terseLabel": "Equity Securities without Readily Determinable Fair Value, Amount" } } }, "localname": "EquitySecuritiesWithoutReadilyDeterminableFairValueAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount": { "auth_ref": [ "r261" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of impairment loss on investment in equity security without readily determinable fair value.", "label": "Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount", "negatedTerseLabel": "Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount" } } }, "localname": "EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount": { "auth_ref": [ "r262" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 8.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.", "label": "Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount", "terseLabel": "Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount" } } }, "localname": "EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FacilityClosingMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Closing of a facility associated with exit from or disposal of business activities or restructurings pursuant to a plan.", "label": "Facility Closing [Member]", "terseLabel": "Facility Closing" } } }, "localname": "FacilityClosingMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "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.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r504", "r505", "r506", "r515" ], "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.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss": { "auth_ref": [ "r513" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.", "label": "Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)", "terseLabel": "Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": { "auth_ref": [ "r509" ], "lang": { "en-US": { "role": { "documentation": "Class of asset.", "label": "Asset Class [Domain]", "terseLabel": "Asset Class [Domain]" } } }, "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueByAssetClassAxis": { "auth_ref": [ "r504", "r515" ], "lang": { "en-US": { "role": { "documentation": "Information by class of asset.", "label": "Asset Class [Axis]", "terseLabel": "Asset Class [Axis]" } } }, "localname": "FairValueByAssetClassAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r379", "r380", "r386", "r505", "r577" ], "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.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r504", "r505", "r507", "r508", "r516" ], "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.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "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": [ "r514" ], "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]", "terseLabel": "FAIR VALUE MEASUREMENTS" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r379", "r380", "r386", "r505", "r578" ], "lang": { "en-US": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]", "netLabel": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r379", "r380", "r386", "r505", "r579" ], "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": "Level 2", "verboseLabel": "Fair Value, Inputs, Level 2 [Member]" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r379", "r380", "r386", "r505", "r580" ], "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": "Level 3", "verboseLabel": "Fair Value, Inputs, Level 3 [Member]" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss": { "auth_ref": [ "r513" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.", "label": "Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)", "terseLabel": "Unrealized (Losses) Gains Still Held - Liabilities" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "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.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1": { "auth_ref": [ "r510" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings", "negatedTerseLabel": "Unrealized Gain (Loss) on Securities" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss": { "auth_ref": [ "r511" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)", "negatedTerseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)", "terseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements": { "auth_ref": [ "r512" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements", "negatedLabel": "Payment for Contingent Consideration Liability, Operating Activities" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue": { "auth_ref": [ "r509" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value", "terseLabel": "Fair value option investments", "verboseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": { "auth_ref": [ "r510" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings", "terseLabel": "(Gain) loss, net from changes in fair value of contingent consideration" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues": { "auth_ref": [ "r512" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances", "terseLabel": "Contingent consideration liability incurred in connection with acquisition of business" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": { "auth_ref": [ "r509" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value", "terseLabel": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "monetaryItemType" }, "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.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r514", "r516" ], "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 [Member]", "verboseLabel": "Fair Value, Measurements, Recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOptionChangesInFairValueGainLoss1": { "auth_ref": [ "r519" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 3.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.", "label": "Fair Value, Option, Changes in Fair Value, Gain (Loss)", "negatedTerseLabel": "(Gain) loss from changes in fair value of investments", "netLabel": "Gains (losses), net on changes in fair value of investments", "terseLabel": "(Gain) loss from changes in fair value of investments" } } }, "localname": "FairValueOptionChangesInFairValueGainLoss1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseInterestExpense": { "auth_ref": [ "r547", "r553", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 2.0, "parentTag": "grpn_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.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseInterestPaymentOnLiability": { "auth_ref": [ "r549", "r558" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest paid on finance lease liability.", "label": "Finance Lease, Interest Payment on Liability", "negatedTerseLabel": "Operating cash flows from finance leases" } } }, "localname": "FinanceLeaseInterestPaymentOnLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finance Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Finance Leases" } } }, "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinanceLeaseLiability": { "auth_ref": [ "r546", "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.", "label": "Finance Lease, Liability", "totalLabel": "Present value of net minimum lease payments" } } }, "localname": "FinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityCurrent": { "auth_ref": [ "r546" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiability", "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", "negatedTerseLabel": "Less: Current portion of lease obligations" } } }, "localname": "FinanceLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r563" ], "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": "Schedule of Finance Lease Liabilities" } } }, "localname": "FinanceLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinanceLeaseLiabilityNoncurrent": { "auth_ref": [ "r546" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiability", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "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": "Total long-term lease obligations" } } }, "localname": "FinanceLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDue": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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 minimum lease payments" } } }, "localname": "FinanceLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r563" ], "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: Amount representing interest" } } }, "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeasePrincipalPayments": { "auth_ref": [ "r548", "r558" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for principal payment on finance lease.", "label": "Finance Lease, Principal Payments", "negatedTerseLabel": "Payments of finance lease obligations" } } }, "localname": "FinanceLeasePrincipalPayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAsset": { "auth_ref": [ "r545" ], "calculation": { "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails": { "order": 2.0, "parentTag": "grpn_LeaseRightofUseAsset", "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", "terseLabel": "Right-of-use assets - finance leases (1)" } } }, "localname": "FinanceLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAssetAmortization": { "auth_ref": [ "r547", "r553", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 1.0, "parentTag": "grpn_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.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r561", "r564" ], "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": "Weighted average discount rate under finance leases" } } }, "localname": "FinanceLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r560", "r564" ], "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": "Weighted average remaining lease term under finance leases" } } }, "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r271", "r272", "r273", "r274", "r275", "r279", "r280", "r281", "r282" ], "lang": { "en-US": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument [Axis]" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "stringItemType" }, "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": "Intangible assets, useful life" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r299" ], "calculation": { "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "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", "terseLabel": "Accumulated Amortization" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive": { "auth_ref": [], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": { "auth_ref": [ "r301" ], "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": "2019" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": { "auth_ref": [ "r301" ], "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", "terseLabel": "2023" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": { "auth_ref": [ "r301" ], "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": "2022" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": { "auth_ref": [ "r301" ], "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": "2021" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": { "auth_ref": [ "r301" ], "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": "2020" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r295", "r296", "r299", "r302", "r583" ], "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.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r299", "r583" ], "calculation": { "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "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": "Gross Carrying Value" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r295", "r298" ], "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.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNet": { "auth_ref": [ "r299" ], "calculation": { "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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", "terseLabel": "Finite-Lived Intangible Assets, Net", "totalLabel": "Net Carrying Value" } } }, "localname": "FiniteLivedIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfEstimatedFutureAmortizationExpenseDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "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": "International" } } }, "localname": "ForeignCountryMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ForeignCurrencyTransactionGainLossBeforeTax": { "auth_ref": [ "r520", "r521", "r522" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 5.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.", "label": "Foreign Currency Transaction Gain (Loss), before Tax", "terseLabel": "Foreign currency gains (losses), net" } } }, "localname": "ForeignCurrencyTransactionGainLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock": { "auth_ref": [ "r174", "r522", "r529" ], "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]", "terseLabel": "Foreign Currency" } } }, "localname": "ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.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": "Furniture and fixtures" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnDispositionOfIntangibleAssets": { "auth_ref": [ "r164" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 }, "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 4.0, "parentTag": "us-gaap_OperatingExpenses", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) on sale or disposal of intangible assets.", "label": "Gain (Loss) on Disposition of Intangible Assets", "negatedLabel": "Gain on sale of intangible assets", "negatedTerseLabel": "Gain on sale of intangible assets", "terseLabel": "Gain (Loss) on Disposition of Intangible Assets" } } }, "localname": "GainLossOnDispositionOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfBusiness": { "auth_ref": [ "r164", "r493" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.", "label": "Gain (Loss) on Disposition of Business", "terseLabel": "Gain (Loss) on Disposition of Business" } } }, "localname": "GainLossOnSaleOfBusiness", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfEquityInvestments": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence.", "label": "Gain (Loss) on Sale of Equity Investments", "terseLabel": "Gain (Loss) on Sale of Equity Investments" } } }, "localname": "GainLossOnSaleOfEquityInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfInvestments": { "auth_ref": [ "r164" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 4.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.", "label": "Gain (Loss) on Sale of Investments", "negatedTerseLabel": "(Gain) loss on sale of investment", "terseLabel": "Gain on sale of investment" } } }, "localname": "GainLossOnSaleOfInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossRelatedToLitigationSettlement": { "auth_ref": [ "r334" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.", "label": "Gain (Loss) Related to Litigation Settlement", "terseLabel": "Gain (Loss) Related to Litigation Settlement" } } }, "localname": "GainLossRelatedToLitigationSettlement", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GeographicDistributionDomesticMember": { "auth_ref": [ "r276" ], "lang": { "en-US": { "role": { "documentation": "Allocation of business activity identified as domestic.", "label": "Geographic Distribution, Domestic [Member]", "terseLabel": "Geographic Distribution, Domestic" } } }, "localname": "GeographicDistributionDomesticMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GeographicDistributionForeignMember": { "auth_ref": [ "r277" ], "lang": { "en-US": { "role": { "documentation": "Allocation of business activity identified as foreign.", "label": "Geographic Distribution, Foreign [Member]", "terseLabel": "Geographic Distribution, Foreign" } } }, "localname": "GeographicDistributionForeignMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r288", "r289" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Assets", "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", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "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_GoodwillAndIntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r305" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for goodwill and intangible assets.", "label": "Goodwill and Intangible Assets Disclosure [Text Block]", "terseLabel": "GOODWILL AND OTHER INTANGIBLE ASSETS" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy": { "auth_ref": [ "r174", "r291" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillForeignCurrencyTranslationGainLoss": { "auth_ref": [ "r290" ], "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 currency translation" } } }, "localname": "GoodwillForeignCurrencyTranslationGainLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GrossProfit": { "auth_ref": [ "r132" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "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.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock": { "auth_ref": [ "r174", "r306", "r315" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets.", "label": "Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]", "terseLabel": "Impairment of Long-Lived Assets" } } }, "localname": "ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossFromContinuingOperations": { "auth_ref": [ "r133", "r165", "r200", "r484" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of income (loss) from continuing operations attributable to the parent.", "label": "Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent", "terseLabel": "Net income (loss) attributable to common stockholders - continuing operations" } } }, "localname": "IncomeLossFromContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic": { "auth_ref": [ "r183" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Domestic", "verboseLabel": "United States" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "auth_ref": [ "r127", "r190", "r596", "r607", "r631" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 }, "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest", "totalLabel": "Income (loss) from continuing operations before provision (benefit) for income taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign": { "auth_ref": [ "r183" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "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": "International" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r183" ], "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": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r485" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 }, "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 }, "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_ProfitLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.", "label": "Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Income (loss) from continuing operations", "totalLabel": "Income (loss) from continuing operations", "verboseLabel": "Income (loss) from continuing operations" } } }, "localname": "IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsPerBasicShare": { "auth_ref": [ "r124", "r129", "r197", "r198", "r199", "r606", "r608", "r610", "r627" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_EarningsPerShareBasic", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.", "label": "Income (Loss) from Continuing Operations, Per Basic Share", "terseLabel": "Continuing operations (in usd per share)", "verboseLabel": "Income (Loss) from Continuing Operations, Per Basic Share" } } }, "localname": "IncomeLossFromContinuingOperationsPerBasicShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare": { "auth_ref": [ "r124", "r129", "r197", "r198", "r199", "r200", "r610", "r627", "r630" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_EarningsPerShareDiluted", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) derived from continuing operations during 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": "Income (Loss) from Continuing Operations, Per Diluted Share", "terseLabel": "Continuing operations (in usd per share)", "verboseLabel": "Income (Loss) from Continuing Operations, Per Diluted Share" } } }, "localname": "IncomeLossFromContinuingOperationsPerDilutedShare", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax": { "auth_ref": [ "r7", "r8", "r9", "r10", "r11", "r22", "r129", "r628" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_ProfitLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.", "label": "Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Income (loss) from discontinued operations, net of tax", "verboseLabel": "Less: Income (loss) from discontinued operations, net of tax" } } }, "localname": "IncomeLossFromDiscontinuedOperationsNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity": { "auth_ref": [ "r7", "r8", "r9", "r10", "r11", "r19", "r22", "r485" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 4.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.", "label": "Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent", "terseLabel": "Income (loss) from discontinued operations" } } }, "localname": "IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by name of disposal group.", "label": "Disposal Group Name [Axis]", "terseLabel": "Disposal Group Name [Axis]" } } }, "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems": { "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": "Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]", "terseLabel": "Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]" } } }, "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable": { "auth_ref": [ "r1", "r13", "r14", "r15", "r16", "r17", "r18", "r21", "r23", "r24", "r25", "r313", "r314" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.", "label": "Disposal Groups, Including Discontinued Operations [Table]", "terseLabel": "Disposal Groups, Including Discontinued Operations [Table]" } } }, "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r311" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxAuthorityAxis": { "auth_ref": [ "r433" ], "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.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "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.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "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": [ "r462" ], "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]", "terseLabel": "INCOME TAXES" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued": { "auth_ref": [ "r431" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.", "label": "Income Tax Examination, Penalties and Interest Accrued", "terseLabel": "Income Tax Examination, Penalties and Interest Accrued" } } }, "localname": "IncomeTaxExaminationPenaltiesAndInterestAccrued", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxExaminationPenaltiesAndInterestExpense": { "auth_ref": [ "r431" ], "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", "terseLabel": "Income Tax Examination, Penalties and Interest Expense" } } }, "localname": "IncomeTaxExaminationPenaltiesAndInterestExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r179", "r226", "r458" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest", "weight": -1.0 }, "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems", "weight": 1.0 }, "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails": { "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)", "terseLabel": "Provision (benefit) for income taxes", "totalLabel": "Provision (benefit) for income taxes", "verboseLabel": "Continuing Operations" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems": { "auth_ref": [ "r460" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current tax expense (benefit) and deferred tax expense (benefit) pertaining to income (loss) from continuing operations and income (loss) from discontinued operations.", "label": "Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations", "totalLabel": "Total" } } }, "localname": "IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfPretaxIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r122", "r174", "r425", "r426", "r440", "r441", "r447", "r461", "r644" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r424", "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "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 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.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate": { "auth_ref": [ "r423", "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 5.0, "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": "Reclassification for impact of U.S. tax rate change", "verboseLabel": "Effect of income tax rate changes on deferred items (2)" } } }, "localname": "IncomeTaxReconciliationChangeInEnactedTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential": { "auth_ref": [ "r177", "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "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 foreign income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount", "terseLabel": "Foreign income and losses taxed at different rates (1)" } } }, "localname": "IncomeTaxReconciliationForeignIncomeTaxRateDifferential", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r178", "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "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", "terseLabel": "U.S. federal income tax provision (benefit) at statutory rate" } } }, "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther": { "auth_ref": [ "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 14.0, "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": "Non-deductible or non-taxable items" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost": { "auth_ref": [ "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 8.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount", "terseLabel": "Non-deductible stock-based compensation expense" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationOtherAdjustments": { "auth_ref": [ "r429" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 6.0, "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": "Tax effects of intercompany transactions" } } }, "localname": "IncomeTaxReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r178", "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "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 state and local income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount", "terseLabel": "State income taxes, net of federal benefits, and state tax credits" } } }, "localname": "IncomeTaxReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationTaxCreditsResearch": { "auth_ref": [ "r429", "r430" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 10.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "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 research tax credit.", "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount", "negatedLabel": "Federal research and development credits" } } }, "localname": "IncomeTaxReconciliationTaxCreditsResearch", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r168" ], "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, net of any cash received during the current period as refunds for the overpayment of taxes.", "label": "Income Taxes Paid, Net", "terseLabel": "Income tax payments (refunds)" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesReceivable": { "auth_ref": [ "r94", "r604", "r626" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails": { "order": 3.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.", "label": "Income Taxes Receivable, Current", "terseLabel": "Income taxes receivable" } } }, "localname": "IncomeTaxesReceivable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayable": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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", "terseLabel": "Accounts payable" } } }, "localname": "IncreaseDecreaseInAccountsPayable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsReceivable": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 12.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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.", "label": "Increase (Decrease) in Accounts Receivable", "negatedTerseLabel": "Accounts receivable" } } }, "localname": "IncreaseDecreaseInAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccruedLiabilities": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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 current liabilities" } } }, "localname": "IncreaseDecreaseInAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInIncomeTaxes": { "auth_ref": [ "r163" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.", "label": "Increase (Decrease) in Income Taxes", "terseLabel": "Increase (Decrease) in Income Taxes" } } }, "localname": "IncreaseDecreaseInIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract]", "terseLabel": "Change in assets and liabilities, net of acquisitions and dispositions:" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssetsAndLiabilitiesNetAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 19.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.", "label": "Increase (Decrease) in Other Operating Assets and Liabilities, Net", "negatedTerseLabel": "Other, net" } } }, "localname": "IncreaseDecreaseInOtherOperatingCapitalNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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", "negatedTerseLabel": "Prepaid expenses and other current assets" } } }, "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "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.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "stringItemType" }, "us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants": { "auth_ref": [ "r200" ], "lang": { "en-US": { "role": { "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.", "label": "Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants", "terseLabel": "Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants" } } }, "localname": "IncrementalCommonSharesAttributableToCallOptionsAndWarrants", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis": { "auth_ref": [ "r375" ], "lang": { "en-US": { "role": { "documentation": "Information about effect of transition method for cumulative effect in initial period of application.", "label": "Initial Application Period Cumulative Effect Transition [Axis]", "terseLabel": "Initial Application Period Cumulative Effect Transition [Axis]" } } }, "localname": "InitialApplicationPeriodCumulativeEffectTransitionAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InitialApplicationPeriodCumulativeEffectTransitionDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Effect of transition method for cumulative effect in initial period of application.", "label": "Initial Application Period Cumulative Effect Transition [Domain]", "terseLabel": "Initial Application Period Cumulative Effect Transition [Domain]" } } }, "localname": "InitialApplicationPeriodCumulativeEffectTransitionDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r293", "r297" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "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)", "terseLabel": "Intangible assets, net" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r125", "r224", "r530", "r533", "r611" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "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", "negatedTerseLabel": "Interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseDebt": { "auth_ref": [ "r138", "r350" ], "calculation": { "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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", "totalLabel": "Total" } } }, "localname": "InterestExpenseDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseDebtExcludingAmortization": { "auth_ref": [ "r140" ], "calculation": { "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_InterestExpenseDebt", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.", "label": "Interest Expense, Debt, Excluding Amortization", "terseLabel": "Contractual interest (3.25% of the principal amount per annum)" } } }, "localname": "InterestExpenseDebtExcludingAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsScheduleOfConvertibleDebtInterestExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestIncomeOther": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income earned from interest bearing assets classified as other.", "label": "Interest Income, Other", "terseLabel": "Interest income" } } }, "localname": "InterestIncomeOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r157", "r161", "r168" ], "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": "Cash paid for interest" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterimPeriodCostsNotAllocableDomain": { "auth_ref": [ "r208" ], "lang": { "en-US": { "role": { "documentation": "This element represents the type of costs and expenses incurred during an interim period that cannot be readily identified with the activities or benefits of other interim periods and are charged to the interim period in which incurred.", "label": "Interim Period, Costs Not Allocable [Domain]", "terseLabel": "Interim Period, Costs Not Allocable [Domain]" } } }, "localname": "InterimPeriodCostsNotAllocableDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InternalUseSoftwarePolicy": { "auth_ref": [ "r174", "r303", "r304" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InventoryFinishedGoodsNetOfReserves": { "auth_ref": [ "r69", "r286" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.", "label": "Inventory, Finished Goods, Net of Reserves", "terseLabel": "Merchandise inventories" } } }, "localname": "InventoryFinishedGoodsNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryPolicyTextBlock": { "auth_ref": [ "r38", "r96", "r174", "r207", "r284", "r285" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentPolicyTextBlock": { "auth_ref": [ "r266" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for investment in financial asset.", "label": "Investment, Policy [Policy Text Block]", "terseLabel": "Financial Instruments" } } }, "localname": "InvestmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentTypeAxis": { "auth_ref": [ "r639", "r640", "r641", "r642" ], "lang": { "en-US": { "role": { "documentation": "Information by type of investments.", "label": "Investment Type [Axis]", "terseLabel": "Investment Type [Axis]" } } }, "localname": "InvestmentTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InvestmentTypeCategorizationMember": { "auth_ref": [ "r639", "r640", "r641", "r642" ], "lang": { "en-US": { "role": { "documentation": "Asset obtained to generate income or appreciate in value.", "label": "Investments [Domain]", "terseLabel": "Investments [Domain]" } } }, "localname": "InvestmentTypeCategorizationMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Investments": { "auth_ref": [ "r625" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "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 investments.", "label": "Investments", "terseLabel": "Investments (including $1,405 and $84,242 at December 31, 2019 and December 31, 2018 at fair value)" } } }, "localname": "Investments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentsFairValueDisclosure": { "auth_ref": [ "r504" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.", "label": "Investments, Fair Value Disclosure", "terseLabel": "Investments, Fair Value Disclosure" } } }, "localname": "InvestmentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseAndRentalExpense": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.", "label": "Operating Leases, Rent Expense", "terseLabel": "Operating Leases, Rent Expense" } } }, "localname": "LeaseAndRentalExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseArrangementTypeAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by group of related lease arrangements. For example, but not limited to, leases grouped by facility or contractual terms.", "label": "Lease Arrangement, Type [Axis]", "terseLabel": "Lease Arrangement, Type [Axis]" } } }, "localname": "LeaseArrangementTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LeaseArrangementTypeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Group of related lease arrangements. For example, but not limited to, leases grouped by facility or contractual terms.", "label": "Lease Arrangement, Type [Domain]", "terseLabel": "Lease Arrangement, Type [Domain]" } } }, "localname": "LeaseArrangementTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r562", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "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.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r562" ], "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": "Schedule of Lease Cost" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeaseholdImprovementsMember": { "auth_ref": [ "r308" ], "lang": { "en-US": { "role": { "documentation": "Additions or improvements to assets held under a lease arrangement.", "label": "Leasehold Improvements [Member]", "terseLabel": "Leasehold improvements" } } }, "localname": "LeaseholdImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "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_LesseeLeasesPolicyTextBlock": { "auth_ref": [ "r551" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for leasing arrangement entered into by lessee.", "label": "Lessee, Leases [Policy Text Block]", "terseLabel": "Lease and Asset Retirement Obligations" } } }, "localname": "LesseeLeasesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1": { "auth_ref": [ "r552" ], "lang": { "en-US": { "role": { "documentation": "Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract", "terseLabel": "Lessee, Finance Lease, Lease Not yet Commenced, Term of Contract" } } }, "localname": "LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r563" ], "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": "Schedule of Operating Lease Liabilities" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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", "terseLabel": "Lessee, Operating Lease, Liability, Payments, Due", "totalLabel": "Total minimum lease payments" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r563" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r563" ], "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: Amount representing interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r565" ], "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.groupon.com/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LessorOperatingLeasePaymentsFiscalYearMaturityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]", "terseLabel": "Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]" } } }, "localname": "LessorOperatingLeasePaymentsFiscalYearMaturityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceived": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor for operating lease.", "label": "Lessor, Operating Lease, Payments to be Received", "terseLabel": "Payments to be received under operating leases", "totalLabel": "Total future sublease income" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceived", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails", "http://www.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedFiveYears": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 5.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Five Years", "terseLabel": "2024" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedFiveYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedFourYears": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 4.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor in fourth year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Four Years", "terseLabel": "2023" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedFourYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 1.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor in next fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Next Twelve Months", "terseLabel": "2020" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedThereafter": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 6.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor after fifth fiscal year following latest statement of financial position date for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Thereafter", "terseLabel": "Thereafter" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedThereafter", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedThreeYears": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 3.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor in third fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Three Years", "terseLabel": "2022" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedThreeYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeasePaymentsToBeReceivedTwoYears": { "auth_ref": [ "r566" ], "calculation": { "http://www.groupon.com/role/LeasesSubleaseDetails": { "order": 2.0, "parentTag": "us-gaap_LessorOperatingLeasePaymentsToBeReceived", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease payments to be received by lessor in second fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.", "label": "Lessor, Operating Lease, Payments to be Received, Two Years", "terseLabel": "2021" } } }, "localname": "LessorOperatingLeasePaymentsToBeReceivedTwoYears", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSubleaseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LessorOperatingLeaseRenewalTerm": { "auth_ref": [ "r567" ], "lang": { "en-US": { "role": { "documentation": "Term of lessor's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessor, Operating Lease, Renewal Term", "terseLabel": "Lessor, Operating Lease, Renewal Term" } } }, "localname": "LessorOperatingLeaseRenewalTerm", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "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": "Outstanding amount of lines of credit" } } }, "localname": "LettersOfCreditOutstandingAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r81" ], "calculation": { "http://www.groupon.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", "totalLabel": "Total Liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r67", "r603", "r622" ], "calculation": { "http://www.groupon.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", "totalLabel": "Total Liabilities and Equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "Liabilities and Equity" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r83" ], "calculation": { "http://www.groupon.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": "Liabilities, Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities, Current [Abstract]", "terseLabel": "Current liabilities:" } } }, "localname": "LiabilitiesCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesNoncurrent": { "auth_ref": [ "r40", "r41", "r42", "r54", "r55" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation due after one year or beyond the normal operating cycle, if longer.", "label": "Liabilities, Noncurrent", "terseLabel": "Liabilities, Noncurrent", "totalLabel": "Total other non-current liabilities", "verboseLabel": "Other non-current liabilities" } } }, "localname": "LiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r79" ], "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": "Aggregate principal amount", "verboseLabel": "Line of Credit Facility, Maximum Borrowing Capacity" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.", "label": "Line of Credit Facility, Unused Capacity, Commitment Fee Percentage", "terseLabel": "Unused commitment fee percentage" } } }, "localname": "LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "percentItemType" }, "us-gaap_LongTermPurchaseCommitmentTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount.", "label": "Long-term Purchase Commitment [Table Text Block]", "terseLabel": "Long-term Purchase Commitment" } } }, "localname": "LongTermPurchaseCommitmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r85" ], "lang": { "en-US": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]", "terseLabel": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r85", "r344" ], "lang": { "en-US": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. 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": "Long-term Debt, Type [Domain]", "terseLabel": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingenciesTable": { "auth_ref": [ "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r342", "r343" ], "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.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingencyAccrualProvision": { "auth_ref": [ "r334" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.", "label": "Loss Contingency Accrual, Provision", "terseLabel": "Provision for loss contingency" } } }, "localname": "LossContingencyAccrualProvision", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MachineryAndEquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.", "label": "Machinery and Equipment [Member]", "terseLabel": "Warehouse equipment" } } }, "localname": "MachineryAndEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MarketingExpense": { "auth_ref": [ "r137" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.", "label": "Marketing Expense", "negatedTerseLabel": "Marketing expense", "verboseLabel": "Marketing" } } }, "localname": "MarketingExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MinorityInterest": { "auth_ref": [ "r95", "r602", "r621" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "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 is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).", "label": "Stockholders' Equity Attributable to Noncontrolling Interest", "terseLabel": "Noncontrolling interests" } } }, "localname": "MinorityInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders": { "auth_ref": [ "r363" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.", "label": "Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders", "negatedTerseLabel": "Distributions to noncontrolling interest holders" } } }, "localname": "MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_MovementInCustomerRefundableFeesRollForward": { "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": "Movement in Customer Refundable Fees [Roll Forward]", "terseLabel": "Movement in Customer Refundable Fees [Roll Forward]" } } }, "localname": "MovementInCustomerRefundableFeesRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionLiabilityForCustomerCreditsRollforwardDetails" ], "xbrltype": "stringItemType" }, "us-gaap_MovementInValuationAllowancesAndReservesRollForward": { "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": "SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]", "terseLabel": "SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]" } } }, "localname": "MovementInValuationAllowancesAndReservesRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NatureOfExpenseAxis": { "auth_ref": [ "r208" ], "lang": { "en-US": { "role": { "documentation": "Information by type of cost or expense.", "label": "Nature of Expense [Axis]", "terseLabel": "Nature of Expense [Axis]" } } }, "localname": "NatureOfExpenseAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInDiscontinuedOperations": { "auth_ref": [ "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (decrease) in cash associated with the entity's discontinued operations.", "label": "Net Cash Provided by (Used in) Discontinued Operations", "negatedTerseLabel": "Less: Net increase (decrease) in cash classified within current assets of discontinued operations" } } }, "localname": "NetCashProvidedByUsedInDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "grpn_CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations", "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.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "grpn_CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations", "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", "totalLabel": "Net cash provided by (used in) investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations": { "auth_ref": [ "r160" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) of investing activities, excluding 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, Continuing Operations", "totalLabel": "Net cash provided by (used in) investing activities from continuing operations" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r160", "r162", "r165" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "grpn_CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations", "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", "totalLabel": "Net cash provided by (used in) operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations": { "auth_ref": [ "r160", "r162", "r165" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, excluding 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, Continuing Operations", "totalLabel": "Net cash provided by (used in) operating activities from continuing operations" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r116", "r119", "r128", "r165", "r202", "r609", "r629" ], "calculation": { "http://www.groupon.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 income (loss) attributable to parent", "totalLabel": "Net income (loss) attributable to Groupon, Inc.", "verboseLabel": "Net income (loss) attributable to common stockholders" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest": { "auth_ref": [ "r116", "r119", "r490", "r496" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of Net Income (Loss) attributable to noncontrolling interest.", "label": "Net Income (Loss) Attributable to Noncontrolling Interest", "terseLabel": "Less: Net income (loss) attributable to noncontrolling interests", "verboseLabel": "Net income attributable to noncontrolling interests" } } }, "localname": "NetIncomeLossAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.", "label": "New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification", "terseLabel": "New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification" } } }, "localname": "NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": { "auth_ref": [ "r189", "r191" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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": "Adoption of New Accounting Standards" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionInvestmentsAcquired1": { "auth_ref": [ "r169", "r170", "r171" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Noncash or Part Noncash Acquisition, Investments Acquired", "terseLabel": "Noncash or Part Noncash Acquisition, Investments Acquired", "verboseLabel": "Fair value of minority investments retained or acquired" } } }, "localname": "NoncashOrPartNoncashAcquisitionInvestmentsAcquired1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1": { "auth_ref": [ "r169", "r170", "r171" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction.", "label": "Noncash or Part Noncash Divestiture, Amount of Consideration Received", "terseLabel": "Total net consideration received" } } }, "localname": "NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncontrollingInterestMember": { "auth_ref": [ "r482" ], "lang": { "en-US": { "role": { "documentation": "This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.", "label": "Noncontrolling Interest [Member]", "terseLabel": "Non-controlling Interests" } } }, "localname": "NoncontrollingInterestMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_NumberOfCountriesInWhichEntityOperates": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The number of countries in which the entity operates as of balance sheet date.", "label": "Number of Countries in which Entity Operates", "terseLabel": "Number of countries in which operations were ceased within", "verboseLabel": "Number of Countries in which Entity Operates" } } }, "localname": "NumberOfCountriesInWhichEntityOperates", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfReportableSegments": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.", "label": "Number of Reportable Segments", "terseLabel": "Number of Reportable Segments" } } }, "localname": "NumberOfReportableSegments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DescriptionOfBusinessAndBasisOfPresentationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/SegmentInformationAdditionalInformationDetails" ], "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.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OperatingExpenses": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.", "label": "Operating Expenses", "totalLabel": "Total operating expenses" } } }, "localname": "OperatingExpenses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingExpensesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Operating Expenses [Abstract]", "terseLabel": "Operating expenses:" } } }, "localname": "OperatingExpensesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "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": "Income (loss) from operations", "totalLabel": "Income (loss) from operations" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r554", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 2.0, "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 (1)" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLeaseIncomeTableTextBlock": { "auth_ref": [ "r210", "r568" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of components of income from operating lease.", "label": "Operating Lease, Lease Income [Table Text Block]", "terseLabel": "Schedule of Lease Income" } } }, "localname": "OperatingLeaseLeaseIncomeTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Operating Leases" } } }, "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r546" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease, Liability", "totalLabel": "Present value of net minimum lease payments" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityCurrent": { "auth_ref": [ "r546" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 1.0, "parentTag": "us-gaap_OperatingLeaseLiability", "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", "negatedTerseLabel": "Less: Current portion of lease obligations" } } }, "localname": "OperatingLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "auth_ref": [ "r546" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "order": 2.0, "parentTag": "us-gaap_OperatingLeaseLiability", "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 lease obligations", "verboseLabel": "Total long-term lease obligations" } } }, "localname": "OperatingLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r550", "r558" ], "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", "negatedTerseLabel": "Operating cash flows from operating leases" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r545" ], "calculation": { "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails": { "order": 1.0, "parentTag": "grpn_LeaseRightofUseAsset", "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", "terseLabel": "Right-of-use assets - operating leases" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/LeasesRightOfUseAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r561", "r564" ], "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": "Weighted average discount rate under operating leases" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r560", "r564" ], "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": "Weighted average remaining lease term under operating leases" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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 minimum lease payments" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter": { "auth_ref": [ "r535", "r537" ], "calculation": { "http://www.groupon.com/role/LeasesFutureLeaseAmountDetails": { "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.groupon.com/role/LeasesFutureLeaseAmountDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue": { "auth_ref": [ "r539" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of revenue recognized for the period under subleasing arrangements.", "label": "Operating Leases, Income Statement, Sublease Revenue", "terseLabel": "Operating Leases, Income Statement, Sublease Revenue" } } }, "localname": "OperatingLeasesIncomeStatementSubleaseRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "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": "Operating Loss Carryforwards [Line Items]" } } }, "localname": "OperatingLossCarryforwardsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLossCarryforwardsTable": { "auth_ref": [ "r448" ], "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.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "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_OtherAccruedLiabilitiesCurrent": { "auth_ref": [ "r35", "r36", "r37", "r82" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 8.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.", "label": "Other Accrued Liabilities, Current", "verboseLabel": "Other" } } }, "localname": "OtherAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsCurrent": { "auth_ref": [ "r97" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails": { "order": 4.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current assets classified as other.", "label": "Other Assets, Current", "terseLabel": "Other" } } }, "localname": "OtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r77" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "terseLabel": "Other non-current assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax": { "auth_ref": [ "r109", "r485" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit) for increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.", "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax", "terseLabel": "Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax" } } }, "localname": "OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax": { "auth_ref": [ "r101", "r108", "r524", "r525", "r528", "r529" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax, before 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 Gain (Loss) Arising During Period, Net of Tax", "terseLabel": "Net unrealized gain (loss) during the period" } } }, "localname": "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax": { "auth_ref": [ "r108", "r112", "r114", "r381" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.", "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax", "terseLabel": "Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax" } } }, "localname": "OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": { "auth_ref": [ "r102", "r103", "r108" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax", "totalLabel": "Net change in unrealized gain (loss) on available-for-sale securities" } } }, "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax": { "auth_ref": [ "r102", "r103", "r109" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax", "terseLabel": "Tax effect" } } }, "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossConsolidatedStatementsOfComprehensiveIncomeLossParenthetical" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax": { "auth_ref": [ "r99", "r526" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax and 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, Net of Tax", "terseLabel": "Net change in unrealized gain (loss) on foreign currency translation adjustments", "verboseLabel": "Foreign currency translation" } } }, "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax": { "auth_ref": [ "r108", "r112", "r113", "r114", "r527" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.", "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax", "negatedTerseLabel": "Reclassification adjustment included in income (loss) from discontinued operations" } } }, "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r117", "r120", "r123", "r356" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 2.0, "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": "Other comprehensive income (loss)", "totalLabel": "Other comprehensive income (loss)" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax": { "auth_ref": [ "r106", "r108" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.", "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax", "negatedLabel": "Net change in unrealized gain (loss) on defined benefit pension plan" } } }, "localname": "OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax": { "auth_ref": [ "r108", "r112", "r114", "r259" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 4.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.", "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax", "negatedTerseLabel": "Reclassification adjustment for realized (gain) loss on investment included in income (loss) from continuing operations" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax": { "auth_ref": [ "r108", "r112", "r114" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized loss realized upon the write-down of available-for-sale securities.", "label": "Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax", "negatedTerseLabel": "Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, before Tax" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax": { "auth_ref": [ "r108", "r112", "r114", "r381" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.", "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax", "terseLabel": "Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": { "auth_ref": [ "r102", "r108" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.", "label": "Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax", "terseLabel": "Net unrealized gain (loss) during the period" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherIncomeMember": { "auth_ref": [ "r503" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other revenue.", "label": "Other Income [Member]", "terseLabel": "Other Income" } } }, "localname": "OtherIncomeMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Intangible assets classified as other.", "label": "Other Intangible Assets [Member]", "terseLabel": "Other Intangible Assets" } } }, "localname": "OtherIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherIntangibleAssetsNet": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.", "label": "Other Intangible Assets, Net", "terseLabel": "Other Intangible Assets, Net" } } }, "localname": "OtherIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r86" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "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", "terseLabel": "Other" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherNonCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherMachineryAndEquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other tangible personal property, nonconsumable in nature, with finite lives used to produce goods and services.", "label": "Other Machinery and Equipment [Member]", "terseLabel": "Other Machinery and Equipment" } } }, "localname": "OtherMachineryAndEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherNoncashIncomeExpense": { "auth_ref": [ "r165" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 6.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.", "label": "Other Noncash Income (Expense)", "terseLabel": "Other" } } }, "localname": "OtherNoncashIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncurrentAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other noncurrent assets.", "label": "Other Noncurrent Assets [Member]", "terseLabel": "Other Noncurrent Assets" } } }, "localname": "OtherNoncurrentAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherNoncurrentLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of other noncurrent liabilities.", "label": "Other Noncurrent Liabilities [Table Text Block]", "terseLabel": "Schedule of Other Non-current Liabilities" } } }, "localname": "OtherNoncurrentLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r139" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.", "label": "Other Nonoperating Income (Expense)", "netLabel": "Other income (expense), net", "totalLabel": "Other income (expense), net", "verboseLabel": "Other income, net" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNonoperatingIncomeExpenseMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other nonoperating income (expense).", "label": "Other Nonoperating Income (Expense) [Member]", "terseLabel": "Other Income (Expense)" } } }, "localname": "OtherNonoperatingIncomeExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherRestructuringMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Restructuring and related activities classified as other.", "label": "Other Restructuring [Member]", "terseLabel": "Other Exit Costs" } } }, "localname": "OtherRestructuringMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.", "label": "Other than Temporary Impairment Losses, Investments, Available-for-sale Securities", "negatedTerseLabel": "Other than Temporary Impairment Losses, Investments, Available-for-sale Securities", "terseLabel": "Other than Temporary Impairment Losses, Investments, Available-for-sale Securities", "verboseLabel": "Other than Temporary Impairment Losses, Investments, Available-for-sale Securities" } } }, "localname": "OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails": { "order": 7.0, "parentTag": "us-gaap_OtherNonoperatingIncomeExpense", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.", "label": "Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net", "negatedLabel": "Impairments of investments", "terseLabel": "Impairments of investments" } } }, "localname": "OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfOtherIncomeExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ParentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portion of equity, or net assets, in the consolidated entity attributable, directly or indirectly, to the parent. Excludes noncontrolling interests.", "label": "Parent [Member]", "terseLabel": "Total Groupon, Inc. Stockholders' Equity" } } }, "localname": "ParentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PatentsMember": { "auth_ref": [ "r471" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities": { "auth_ref": [ "r155" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 7.0, "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 related to acquisitions" } } }, "localname": "PaymentForContingentConsiderationLiabilityFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromOtherInvestingActivities": { "auth_ref": [ "r146", "r149", "r185" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash (inflow) outflow from investing activities classified as other.", "label": "Payments for (Proceeds from) Other Investing Activities", "negatedTerseLabel": "Acquisitions of intangible assets and other investing activities" } } }, "localname": "PaymentsForProceedsFromOtherInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromPreviousAcquisition": { "auth_ref": [ "r185" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net cash inflow or outflow associated with the aggregate amount of adjustment to the purchase price of a previous acquisition.", "label": "Payments for (Proceeds from) Previous Acquisition", "terseLabel": "Payments for (Proceeds from) Previous Acquisition" } } }, "localname": "PaymentsForProceedsFromPreviousAcquisition", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r153" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "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": "Payments for repurchases of common stock", "terseLabel": "Payments for Repurchase of Common Stock" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRestructuring": { "auth_ref": [ "r158", "r319" ], "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.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDebtIssuanceCosts": { "auth_ref": [ "r154" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "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": "Issuance costs for revolving credit agreement" } } }, "localname": "PaymentsOfDebtIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [ "r153" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Payment, Tax Withholding, Share-based Payment Arrangement", "negatedTerseLabel": "Taxes paid related to net share settlements of stock-based compensation awards" } } }, "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesGross": { "auth_ref": [ "r147", "r477" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.", "label": "Payments to Acquire Businesses, Gross", "terseLabel": "Cash" } } }, "localname": "PaymentsToAcquireBusinessesGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": { "auth_ref": [ "r147" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "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": "Acquisition of business, net of acquired cash" } } }, "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireInvestments": { "auth_ref": [ "r149" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the purchase of all investments (debt, security, other) during the period.", "label": "Payments to Acquire Investments", "negatedTerseLabel": "Payments to Acquire Investments", "terseLabel": "Payments to Acquire Investments" } } }, "localname": "PaymentsToAcquireInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r148" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "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", "negatedTerseLabel": "Purchases of property and equipment and capitalized software" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToMinorityShareholders": { "auth_ref": [ "r156" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.", "label": "Payments to Noncontrolling Interests", "negatedLabel": "Distributions to noncontrolling interest holders" } } }, "localname": "PaymentsToMinorityShareholders", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionPlansDefinedBenefitMember": { "auth_ref": [ "r378", "r384", "r385", "r387" ], "lang": { "en-US": { "role": { "documentation": "Plan designed to provide participant with pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes other postretirement benefits.", "label": "Pension Plan [Member]", "terseLabel": "Pension Plan [Member]" } } }, "localname": "PensionPlansDefinedBenefitMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "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 Shares" } } }, "localname": "PerformanceSharesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r390", "r413" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r89" ], "lang": { "en-US": { "role": { "documentation": "Aggregate number of nonredeemable preferred shares reserved for future issuance.", "label": "Preferred Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Preferred Stock, Capital Shares Reserved for Future Issuance" } } }, "localname": "PreferredStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockLiquidationPreferenceValue": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of the difference between preference in liquidation and the par or stated values of the preferred shares.", "label": "Preferred Stock, Liquidation Preference, Value", "terseLabel": "Preferred Stock, Liquidation Preference, Value" } } }, "localname": "PreferredStockLiquidationPreferenceValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r60" ], "lang": { "en-US": { "role": { "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.", "label": "Preferred Stock, Shares Outstanding", "terseLabel": "Preferred Stock, Shares Outstanding" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": { "auth_ref": [ "r31", "r70", "r71" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.", "label": "Prepaid Expense and Other Assets, Current", "terseLabel": "Prepaid expenses and other current assets", "totalLabel": "Total prepaid expenses and other current assets" } } }, "localname": "PrepaidExpenseAndOtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpenseCurrent": { "auth_ref": [ "r30", "r32", "r287" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "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", "terseLabel": "Prepaid expenses" } } }, "localname": "PrepaidExpenseCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfPrepaidAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing prepaid expenses and other current assets.", "label": "Prepaid Expenses and Other Current Assets [Member]", "terseLabel": "Prepaid Expenses and Other Current Assets" } } }, "localname": "PrepaidExpensesAndOtherCurrentAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PriorPeriodReclassificationAdjustmentDescription": { "auth_ref": [ "r0" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements.", "label": "Reclassification, Policy [Policy Text Block]", "terseLabel": "Reclassification and Terminology Changes" } } }, "localname": "PriorPeriodReclassificationAdjustmentDescription", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ProceedsFromContributedCapital": { "auth_ref": [ "r150" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the amount received by a corporation from a shareholder during the period.", "label": "Proceeds from Contributed Capital", "terseLabel": "Proceeds from Contributed Capital" } } }, "localname": "ProceedsFromContributedCapital", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromDebtNetOfIssuanceCosts": { "auth_ref": [ "r151" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.", "label": "Proceeds from Debt, Net of Issuance Costs", "terseLabel": "Net proceeds" } } }, "localname": "ProceedsFromDebtNetOfIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested": { "auth_ref": [ "r144" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents the cash inflow during the period from the sale of a component of the entity.", "label": "Proceeds from Divestiture of Businesses, Net of Cash Divested", "terseLabel": "Cash proceeds received" } } }, "localname": "ProceedsFromDivestitureOfBusinessesNetOfCashDivested", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfWarrants": { "auth_ref": [ "r150" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).", "label": "Proceeds from Issuance of Warrants", "terseLabel": "Proceeds from issuance of warrants" } } }, "localname": "ProceedsFromIssuanceOfWarrants", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsNoteHedgesAndWarrantsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromPaymentsForOtherFinancingActivities": { "auth_ref": [ "r152", "r156", "r185" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 9.0, "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", "terseLabel": "Other financing activities" } } }, "localname": "ProceedsFromPaymentsForOtherFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleAndMaturityOfOtherInvestments": { "auth_ref": [ "r146" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy.", "label": "Proceeds from Sale and Maturity of Other Investments", "terseLabel": "Proceeds from sales and maturities of investments" } } }, "localname": "ProceedsFromSaleAndMaturityOfOtherInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r142", "r143", "r250" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Proceeds from Sale of Debt Securities, Available-for-sale", "terseLabel": "Proceeds from Sale of Debt Securities, Available-for-sale" } } }, "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfEquityMethodInvestments": { "auth_ref": [ "r144" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.", "label": "Proceeds from Sale of Equity Method Investments", "terseLabel": "Proceeds from sale of equity method investments", "verboseLabel": "Proceeds from Sale of Equity Method Investments" } } }, "localname": "ProceedsFromSaleOfEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails", "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfIntangibleAssets": { "auth_ref": [ "r145" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill.", "label": "Proceeds from Sale of Intangible Assets", "terseLabel": "Proceeds from sale of intangible assets" } } }, "localname": "ProceedsFromSaleOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfInterestInPartnershipUnit": { "auth_ref": [ "r150" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The proceeds from the sale of an interest in a unit of partnership.", "label": "Proceeds from Sale of Interest in Partnership Unit", "terseLabel": "Proceeds from Sale of Interest in Partnership Unit" } } }, "localname": "ProceedsFromSaleOfInterestInPartnershipUnit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromStockOptionsExercised": { "auth_ref": [ "r150", "r414" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 4.0, "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 stock option exercises and employee stock purchase plan" } } }, "localname": "ProceedsFromStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProductMember": { "auth_ref": [ "r374" ], "lang": { "en-US": { "role": { "documentation": "Article or substance produced by nature, labor or machinery.", "label": "Product [Member]", "terseLabel": "Product" } } }, "localname": "ProductMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProfessionalFees": { "auth_ref": [ "r637", "r638" ], "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": "Less: transaction costs", "terseLabel": "Professional Fees" } } }, "localname": "ProfessionalFees", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLoss": { "auth_ref": [ "r116", "r119", "r159", "r227", "r236", "r485", "r489", "r491", "r496", "r497" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.", "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Net income (loss)", "totalLabel": "Net income (loss)" } } }, "localname": "ProfitLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "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_PropertyPlantAndEquipmentAdditions": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of acquisition 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, Additions", "terseLabel": "Property, Plant and Equipment, Additions" } } }, "localname": "PropertyPlantAndEquipmentAdditions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r76", "r310" ], "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.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": { "auth_ref": [ "r316" ], "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, EQUIPMENT AND SOFTWARE, NET" } } }, "localname": "PropertyPlantAndEquipmentDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNet" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r75", "r308" ], "calculation": { "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails": { "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, equipment and software, gross" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "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.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r47", "r48", "r310", "r623" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails": { "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": "Property, Plant and Equipment, Net", "totalLabel": "Property, equipment and software, net", "verboseLabel": "Property, equipment and software, net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r74", "r174", "r310" ], "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.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r47", "r310" ], "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, Plant, Equipment and Software", "verboseLabel": "Property, Plant, and Equipment and Intangible Assets" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetTables", "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r47", "r308" ], "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.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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", "terseLabel": "Property, Plant and Equipment, Useful Life" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_PurchaseObligation": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.", "label": "Purchase Obligation", "totalLabel": "Total" } } }, "localname": "PurchaseObligation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueAfterFifthYear": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 6.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing after the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due after Fifth Year", "terseLabel": "Thereafter" } } }, "localname": "PurchaseObligationDueAfterFifthYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueInFifthYear": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 5.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing in the fifth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due in Fifth Year", "terseLabel": "2024" } } }, "localname": "PurchaseObligationDueInFifthYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueInFourthYear": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 4.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing in the fourth fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due in Fourth Year", "terseLabel": "2023" } } }, "localname": "PurchaseObligationDueInFourthYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueInNextTwelveMonths": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 1.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due in Next Twelve Months", "terseLabel": "2020" } } }, "localname": "PurchaseObligationDueInNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueInSecondYear": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 2.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing in the second fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due in Second Year", "terseLabel": "2021" } } }, "localname": "PurchaseObligationDueInSecondYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PurchaseObligationDueInThirdYear": { "auth_ref": [], "calculation": { "http://www.groupon.com/role/CommitmentsAndContingenciesDetails": { "order": 3.0, "parentTag": "us-gaap_PurchaseObligation", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Minimum amount of purchase arrangement maturing in the third fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments.", "label": "Purchase Obligation, Due in Third Year", "terseLabel": "2022" } } }, "localname": "PurchaseObligationDueInThirdYear", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CommitmentsAndContingenciesDetails" ], "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": [ "r212" ], "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 RESULTS (UNAUDITED)" } } }, "localname": "QuarterlyFinancialInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnaudited" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax": { "auth_ref": [ "r111", "r115", "r123" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of reclassification adjustments of other comprehensive income (loss).", "label": "Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax", "terseLabel": "Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax" } } }, "localname": "ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReclassificationFromAociCurrentPeriodTax": { "auth_ref": [ "r109", "r114", "r457" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss).", "label": "Reclassification from AOCI, Current Period, Tax", "terseLabel": "Reclassification from AOCI, Current Period, Tax" } } }, "localname": "ReclassificationFromAociCurrentPeriodTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable": { "auth_ref": [ "r232", "r234" ], "lang": { "en-US": { "role": { "documentation": "Identification, description, and amounts of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.", "label": "Reconciliation of Assets from Segment to Consolidated [Table]", "terseLabel": "Reconciliation of Assets from Segment to Consolidated [Table]" } } }, "localname": "ReconciliationOfAssetsFromSegmentToConsolidatedTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock": { "auth_ref": [ "r232", "r234" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.", "label": "Reconciliation of Assets from Segment to Consolidated [Table Text Block]", "terseLabel": "Schedule of Total Assets by Segment" } } }, "localname": "ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable": { "auth_ref": [ "r231", "r234" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.", "label": "Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table]", "terseLabel": "Schedule of Operating Income (Loss) by Segment [Table]" } } }, "localname": "ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock": { "auth_ref": [ "r231", "r234" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.", "label": "Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]", "terseLabel": "Schedule of Operating Income by Reportable Segment" } } }, "localname": "ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTable": { "auth_ref": [ "r230", "r234" ], "lang": { "en-US": { "role": { "documentation": "Identification, description, and amounts of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.", "label": "Reconciliation of Revenue from Segments to Consolidated [Table]", "terseLabel": "Schedule of Revenue by Segment [Table]" } } }, "localname": "ReconciliationOfRevenueFromSegmentsToConsolidatedTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock": { "auth_ref": [ "r230", "r234" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.", "label": "Reconciliation of Revenue from Segments to Consolidated [Table Text Block]", "terseLabel": "Schedule of Revenue by Reportable Segment" } } }, "localname": "ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_RedeemablePreferredStockMember": { "auth_ref": [ "r39", "r353" ], "lang": { "en-US": { "role": { "documentation": "Description of type or class of redeemable preferred stock. For instance, cumulative preferred stock, noncumulative preferred stock, convertible or series.", "label": "Redeemable Preferred Stock [Member]", "terseLabel": "Redeemable Preferred Stock" } } }, "localname": "RedeemablePreferredStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyDomain": { "auth_ref": [ "r574" ], "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.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/RelatedPartyTransactionDetails" ], "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": [ "r383", "r569", "r570", "r584", "r585", "r586", "r587", "r588", "r589", "r590", "r591", "r592", "r593", "r594", "r595" ], "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.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": { "auth_ref": [ "r574" ], "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]", "terseLabel": "RELATED PARTY TRANSACTION" } } }, "localname": "RelatedPartyTransactionsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RelatedPartyTransaction" ], "xbrltype": "textBlockItemType" }, "us-gaap_RestrictedCashAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Restricted Cash [Abstract]", "terseLabel": "Restricted Cash [Abstract]" } } }, "localname": "RestrictedCashAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_RestrictedCashCurrent": { "auth_ref": [ "r28", "r43", "r172" ], "calculation": { "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash restricted as to withdrawal or usage, classified as current. 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.", "label": "Restricted Cash, Current", "terseLabel": "Restricted cash included in prepaid expenses and other current assets" } } }, "localname": "RestrictedCashCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedCashNoncurrent": { "auth_ref": [ "r34", "r51", "r172", "r643" ], "calculation": { "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash restricted as to withdrawal or usage, classified as noncurrent. 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.", "label": "Restricted Cash, Noncurrent", "terseLabel": "Restricted cash included in other non-current assets" } } }, "localname": "RestrictedCashNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfReconciliationOfCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r201" ], "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 Stock [Member]" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "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 Stock Units (RSUs)" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "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_RestructuringAndRelatedActivitiesDisclosureTextBlock": { "auth_ref": [ "r332" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.", "label": "Restructuring and Related Activities Disclosure [Text Block]", "terseLabel": "RESTRUCTURING" } } }, "localname": "RestructuringAndRelatedActivitiesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/Restructuring" ], "xbrltype": "textBlockItemType" }, "us-gaap_RestructuringAndRelatedCostIncurredCost": { "auth_ref": [ "r318", "r321", "r327", "r331" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.", "label": "Restructuring and Related Cost, Incurred Cost", "terseLabel": "Charges payable in cash" } } }, "localname": "RestructuringAndRelatedCostIncurredCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestructuringCharges": { "auth_ref": [ "r164", "r317", "r324", "r329" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 3.0, "parentTag": "us-gaap_OperatingExpenses", "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", "negatedTerseLabel": "Restructuring", "terseLabel": "Restructuring charges", "verboseLabel": "Restructuring charges (credits)" } } }, "localname": "RestructuringCharges", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestructuringChargesMember": { "auth_ref": [ "r320", "r324", "r330" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption in which the reported facts about restructuring charges have been included.", "label": "Restructuring Charges [Member]", "terseLabel": "Restructuring Charges" } } }, "localname": "RestructuringChargesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "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.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RestructuringCosts": { "auth_ref": [ "r164" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after cash payment, 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 Costs", "terseLabel": "Restructuring Costs" } } }, "localname": "RestructuringCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "monetaryItemType" }, "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.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "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.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestructuringReserve": { "auth_ref": [ "r319", "r325" ], "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": "Restructuring reserve, ending balance", "periodStartLabel": "Restructuring reserve, beginning balance" } } }, "localname": "RestructuringReserve", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestructuringReserveTranslationAdjustment": { "auth_ref": [ "r319", "r328" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.", "label": "Restructuring Reserve, Foreign Currency Translation Gain (Loss)", "terseLabel": "Foreign currency translation" } } }, "localname": "RestructuringReserveTranslationAdjustment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r64", "r363", "r620" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "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)", "negatedTerseLabel": "Accumulated deficit", "terseLabel": "Accumulated deficit" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets", "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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": "Accumulated Deficit" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "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": [ "r370", "r371" ], "calculation": { "http://www.groupon.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": "Total revenue", "verboseLabel": "Revenues" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": { "auth_ref": [ "r175", "r377" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for revenue from contract with customer.", "label": "Revenue from Contract with Customer [Policy Text Block]", "terseLabel": "Costs of Obtaining Contracts and Cost of Revenue" } } }, "localname": "RevenueFromContractWithCustomerPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r377" ], "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.groupon.com/role/RevenueRecognition" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems": { "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": "Revenue, Initial Application Period Cumulative Effect Transition [Line Items]", "terseLabel": "Revenue, Initial Application Period Cumulative Effect Transition [Line Items]" } } }, "localname": "RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information when using transition method for cumulative effect in initial period of application for revenue from contract with customer.", "label": "Revenue, Initial Application Period Cumulative Effect Transition [Table]", "terseLabel": "Revenue, Initial Application Period Cumulative Effect Transition [Table]" } } }, "localname": "RevenueInitialApplicationPeriodCumulativeEffectTransitionTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r126", "r222", "r223", "r235" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).", "label": "Revenues", "terseLabel": "Revenues" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/QuarterlyResultsUnauditedDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenuesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Revenues [Abstract]", "terseLabel": "Revenue:" } } }, "localname": "RevenuesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": { "auth_ref": [ "r559", "r564" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability", "terseLabel": "Right-of-use assets obtained in exchange for lease liabilities:" } } }, "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r559", "r564" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Operating leases" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of accrued liabilities.", "label": "Schedule of Accrued Liabilities [Table Text Block]", "terseLabel": "Schedule of Accrued Expenses and Other Current Liabilities" } } }, "localname": "ScheduleOfAccruedLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": { "auth_ref": [ "r111" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of accumulated other comprehensive income (loss).", "label": "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]", "terseLabel": "Schedule of Accumulated Other Comprehensive Income (Loss)" } } }, "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable": { "auth_ref": [ "r295" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": { "auth_ref": [ "r201" ], "lang": { "en-US": { "role": { "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]", "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": { "auth_ref": [ "r201" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]", "terseLabel": "Schedule of Weighted-Average Potentially Dilutive Instruments" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": { "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 Securities, Available-for-sale [Line Items]", "terseLabel": "Debt Securities, Available-for-sale [Line Items]" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.", "label": "Schedule of Available-for-sale Securities Reconciliation [Table Text Block]", "terseLabel": "Schedule of Activity for Available For Sale Securities" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAvailableForSaleSecuritiesTable": { "auth_ref": [ "r253", "r254", "r255", "r256", "r257", "r258", "r612", "r613" ], "lang": { "en-US": { "role": { "documentation": "Schedule of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.", "label": "Schedule of Available-for-sale Securities [Table]", "terseLabel": "Schedule of Available-for-sale Securities [Table]" } } }, "localname": "ScheduleOfAvailableForSaleSecuritiesTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsScheduleOfActivityForAvailableForSaleSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock": { "auth_ref": [ "r478" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the equity interest issued or issuable in a business acquisition (or series of individually immaterial business acquisitions) planned, initiated, or completed during the period.", "label": "Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table Text Block]", "terseLabel": "Summary of Fair Value of Consideration Transferred in Acquisition" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionEquityInterestIssuedOrIssuableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": { "auth_ref": [ "r465", "r466" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.", "label": "Schedule of Business Acquisitions, by Acquisition [Table]", "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock": { "auth_ref": [ "r465", "r466" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.", "label": "Schedule of Business Acquisitions, by Acquisition [Table Text Block]", "terseLabel": "Summary of Allocation of Aggregate Acquisition Price" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [ "r453" ], "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) [Table Text Block]" } } }, "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r446" ], "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 [Table Text Block]" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock": { "auth_ref": [ "r1", "r13", "r14", "r15", "r16", "r17", "r18", "r21", "r23", "r24", "r25", "r313", "r314" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.", "label": "Disposal Groups, Including Discontinued Operations [Table Text Block]", "terseLabel": "Schedule of Major Classes of Line Items Included in Income (Loss) From Discontinued Operations" } } }, "localname": "ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r202" ], "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]", "terseLabel": "Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r429" ], "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 [Table Text Block]" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEquityMethodInvestmentsLineItems": { "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": "Schedule of Equity Method Investments [Line Items]", "terseLabel": "Schedule of Equity Method Investments [Line Items]" } } }, "localname": "ScheduleOfEquityMethodInvestmentsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEquityMethodInvestmentsTable": { "auth_ref": [ "r267" ], "lang": { "en-US": { "role": { "documentation": "Summarization of information required and determined to be disclosed concerning equity method investments in common stock. The summarized information includes: (a) the name of each investee or group of investees for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available.", "label": "Schedule of Equity Method Investments [Table]", "terseLabel": "Schedule of Equity Method Investments [Table]" } } }, "localname": "ScheduleOfEquityMethodInvestmentsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": { "auth_ref": [ "r504", "r505" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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).", "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]", "terseLabel": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis" } } }, "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r295", "r298" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r295", "r298" ], "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 Intangible Assets" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock": { "auth_ref": [ "r538" ], "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 [Table Text Block]" } } }, "localname": "ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfGoodwillTable": { "auth_ref": [ "r291", "r292" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfGoodwillTextBlock": { "auth_ref": [ "r291", "r292" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock": { "auth_ref": [ "r183" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of income before income tax between domestic and foreign jurisdictions.", "label": "Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]", "terseLabel": "Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]" } } }, "localname": "ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock": { "auth_ref": [ "r189", "r191", "r205", "r206", "r211" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.", "label": "Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]", "terseLabel": "Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash" } } }, "localname": "ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the carrying amounts of other current assets.", "label": "Schedule of Other Current Assets [Table Text Block]", "terseLabel": "Schedule of Prepaid and Other Current Assets" } } }, "localname": "ScheduleOfOtherCurrentAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.", "label": "Schedule of Other Nonoperating Income (Expense) [Table Text Block]", "terseLabel": "Schedule of Other Income (Expense)" } } }, "localname": "ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r76", "r310" ], "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.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": { "auth_ref": [ "r209" ], "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 [Table Text Block]" } } }, "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/QuarterlyResultsUnauditedTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": { "auth_ref": [ "r180", "r569", "r570", "r571", "r572", "r573" ], "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.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfRestructuringAndRelatedCostsTable": { "auth_ref": [ "r322", "r323", "r326" ], "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.groupon.com/role/QuarterlyResultsUnauditedAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock": { "auth_ref": [ "r322", "r323", "r326" ], "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": "Summary of Costs Incurred by Segment Related to Restructuring" } } }, "localname": "ScheduleOfRestructuringAndRelatedCostsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock": { "auth_ref": [ "r319", "r328" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of 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. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.", "label": "Schedule of Restructuring Reserve by Type of Cost [Table Text Block]", "terseLabel": "Schedule of Restructuring Liability" } } }, "localname": "ScheduleOfRestructuringReserveByTypeOfCostTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/RestructuringTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock": { "auth_ref": [ "r131", "r238" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.", "label": "Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]", "terseLabel": "Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]" } } }, "localname": "ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": { "auth_ref": [ "r221", "r227", "r229", "r233", "r291" ], "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.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": { "auth_ref": [ "r221", "r227", "r229", "r233", "r291" ], "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]", "terseLabel": "Schedule of Gross Profit by Reportable Segment" } } }, "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock": { "auth_ref": [ "r400", "r405", "r408" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.", "label": "Share-based Payment Arrangement, Activity [Table Text Block]", "terseLabel": "Schedule of Stock-Based Compensation Expense" } } }, "localname": "ScheduleOfShareBasedCompensationActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r390", "r413" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": { "auth_ref": [ "r395" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.", "label": "Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]", "terseLabel": "Schedule of Restricted Stock Unit Activity" } } }, "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock": { "auth_ref": [ "r395" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year.", "label": "Share-based Payment Arrangement, Option and Stock Appreciation Rights, Activity [Table Text Block]", "terseLabel": "Schedule of Stock Option Activity" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r90", "r181", "r352", "r354", "r355", "r357", "r358", "r359", "r360", "r361", "r362", "r363" ], "lang": { "en-US": { "role": { "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.", "label": "Schedule of Stock by Class [Table]", "terseLabel": "Schedule of Stock by Class [Table]" } } }, "localname": "ScheduleOfStockByClassTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": { "auth_ref": [ "r298" ], "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 Estimated Future Amortization Expense" } } }, "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SegmentContinuingOperationsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Component of an entity expected to operate in the foreseeable future.", "label": "Continuing Operations [Member]", "terseLabel": "Continuing Operations" } } }, "localname": "SegmentContinuingOperationsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentDiscontinuedOperationsMember": { "auth_ref": [ "r2", "r4", "r5", "r6" ], "lang": { "en-US": { "role": { "documentation": "Component or group of components disposed of or classified as held-for-sale and representing a strategic shift that has or will have a major effect on operations and financial results. Includes a business or nonprofit activity on acquisition classified as held-for-sale.", "label": "Discontinued Operations [Member]", "terseLabel": "Discontinued Operations" } } }, "localname": "SegmentDiscontinuedOperationsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "xbrltype": "domainItemType" }, "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentOperatingActivitiesDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Operations of an entity including continuing and discontinued operations.", "label": "Operating Activities [Domain]", "terseLabel": "Operating Activities [Domain]" } } }, "localname": "SegmentOperatingActivitiesDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "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_SegmentReportingAssetReconcilingItemLineItems": { "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, Asset Reconciling Item [Line Items]", "terseLabel": "Segment Reporting, Asset Reconciling Item [Line Items]" } } }, "localname": "SegmentReportingAssetReconcilingItemLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingDisclosureTextBlock": { "auth_ref": [ "r239" ], "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]", "terseLabel": "SEGMENT INFORMATION" } } }, "localname": "SegmentReportingDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformation" ], "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.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems": { "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, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]", "terseLabel": "Schedule of Operating Income (Loss) by Segment" } } }, "localname": "SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingRevenueReconcilingItemLineItems": { "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, Revenue Reconciling Item [Line Items]", "terseLabel": "Schedule of Revenue by Segment [Line Items]" } } }, "localname": "SegmentReportingRevenueReconcilingItemLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SellingAndMarketingExpenseMember": { "auth_ref": [ "r130" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing selling and marketing expense.", "label": "Selling and Marketing Expense [Member]", "terseLabel": "Selling and Marketing Expense" } } }, "localname": "SellingAndMarketingExpenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r137", "r283" ], "calculation": { "http://www.groupon.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_OperatingExpenses", "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", "netLabel": "Selling, general and administrative expense", "terseLabel": "Selling, general and administrative" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpensesMember": { "auth_ref": [ "r141" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SeniorNotesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Bond that takes priority over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior debt holders receive priority for (must receive) repayment prior to (relative to) junior and unsecured (general) creditors.", "label": "Senior Notes [Member]", "terseLabel": "Senior Notes" } } }, "localname": "SeniorNotesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ServiceMember": { "auth_ref": [ "r374" ], "lang": { "en-US": { "role": { "documentation": "Assistance, including, but not limited to, technology, license and maintenance, license and service, maintenance, oil and gas, and financial service.", "label": "Service [Member]", "terseLabel": "Service" } } }, "localname": "ServiceMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDepreciationAndAmortizationDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r163" ], "calculation": { "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations", "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", "terseLabel": "Stock-based compensation" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r391" ], "lang": { "en-US": { "role": { "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "verboseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r399" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r404" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r402" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r402" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r401" ], "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", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r401" ], "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", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r403" ], "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", "terseLabel": "Vesting of restricted stock units and performance share units (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "auth_ref": [ "r407" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r403" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate": { "auth_ref": [ "r410" ], "lang": { "en-US": { "role": { "documentation": "Rate of weighted-average expected volatility for award under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": { "auth_ref": [ "r413" ], "lang": { "en-US": { "role": { "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": { "auth_ref": [ "r407" ], "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", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": { "auth_ref": [ "r409" ], "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", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r388", "r393" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "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": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "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": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r174", "r390", "r394" ], "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]", "terseLabel": "Stock-Based Compensation" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions": { "auth_ref": [ "r396" ], "lang": { "en-US": { "role": { "documentation": "The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.", "label": "Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding", "terseLabel": "Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding" } } }, "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "sharesItemType" }, "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" } } }, "localname": "SharePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": { "auth_ref": [ "r391" ], "lang": { "en-US": { "role": { "documentation": "Percentage of vesting of award under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "auth_ref": [ "r392" ], "lang": { "en-US": { "role": { "documentation": "Period from grant date that an equity-based award expires, 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, Expiration Period", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r413" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of non-vested options forfeited.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average grant-date fair value of non-vested options forfeited.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r409" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, 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, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1": { "auth_ref": [ "r397" ], "lang": { "en-US": { "role": { "documentation": "Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.", "label": "Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price", "terseLabel": "Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price" } } }, "localname": "SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails" ], "xbrltype": "perShareItemType" }, "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)", "terseLabel": "Shares, Outstanding" } } }, "localname": "SharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation", "negatedTerseLabel": "Tax withholdings related to net share settlements of stock-based compensation awards (in shares)" } } }, "localname": "SharesPaidForTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_ShortTermLeaseCost": { "auth_ref": [ "r555", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 4.0, "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.groupon.com/role/LeasesTotalLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r188" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "terseLabel": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SoftwareAndSoftwareDevelopmentCostsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Purchased software applications and internally developed software for sale, licensing or long-term internal use.", "label": "Software and Software Development Costs [Member]", "terseLabel": "Purchased software" } } }, "localname": "SoftwareAndSoftwareDevelopmentCostsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SoftwareDevelopmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Internally developed software for sale, licensing or long-term internal use.", "label": "Software Development [Member]", "terseLabel": "Internally-developed software" } } }, "localname": "SoftwareDevelopmentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/PropertyEquipmentAndSoftwareNetDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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" } } }, "localname": "StateAndLocalJurisdictionMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementBusinessSegmentsAxis": { "auth_ref": [ "r12", "r227", "r291", "r312", "r321", "r331", "r632" ], "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.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfGoodwillDetails", "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfGrossProfitBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfOperatingIncomeBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfRevenueBySegmentDetails", "http://www.groupon.com/role/SegmentInformationScheduleOfTotalAssetsTangiblePropertyAndEquipmentDepreciationAndAmortizationAndPropertyAdditionsBySegmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementClassOfStockAxis": { "auth_ref": [ "r59", "r60", "r61", "r356" ], "lang": { "en-US": { "role": { "documentation": "Information by the different classes of stock of the entity.", "label": "Class of Stock [Axis]", "terseLabel": "Class of Stock [Axis]" } } }, "localname": "StatementClassOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails", "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r93", "r356" ], "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.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/FinancingArrangementsScheduleOfNotesDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/RevenueRecognitionAdditionalInformationDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "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.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "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_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "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_StatementOperatingActivitiesSegmentAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by continuing and discontinuing operations.", "label": "Operating Activities [Axis]", "terseLabel": "Operating Activities [Axis]" } } }, "localname": "StatementOperatingActivitiesSegmentAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://www.groupon.com/role/DiscontinuedOperationsAndOtherBusinessDispositionsDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails" ], "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.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows", "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/LeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": { "auth_ref": [ "r60", "r61", "r356", "r363" ], "lang": { "en-US": { "role": { "documentation": "Number of shares issued during the period as a result of an employee stock purchase plan.", "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plans", "terseLabel": "Stock Issued During Period, Shares, Employee Stock Purchase Plans", "verboseLabel": "Shares issued under employee stock purchase plan (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r60", "r61", "r356", "r363", "r398" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "terseLabel": "Exercise in stock options (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsStockOptionsDetails", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": { "auth_ref": [ "r60", "r61", "r356", "r363" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.", "label": "Stock Issued During Period, Value, Employee Stock Purchase Plan", "terseLabel": "Shares issued under employee stock purchase plan" } } }, "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross": { "auth_ref": [ "r60", "r61", "r356", "r363" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate value of stock related to Restricted Stock Awards issued during the period.", "label": "Stock Issued During Period, Value, Restricted Stock Award, Gross", "terseLabel": "Stock Issued During Period, Value, Restricted Stock Award, Gross" } } }, "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CompensationArrangementsAdditionalInformationDetails", "http://www.groupon.com/role/CompensationArrangementsRestrictedStockUnitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation": { "auth_ref": [ "r60", "r61", "r363", "r389", "r406" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).", "label": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture", "terseLabel": "Stock-based compensation on equity-classified awards" } } }, "localname": "StockIssuedDuringPeriodValueShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "auth_ref": [ "r93", "r356", "r363" ], "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", "terseLabel": "Exercise of stock options" } } }, "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockOrUnitsAvailableForDistributions": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of stock or units eligible for distribution to members or limited partners of the limited liability company (LLC) or limited partnership (LP).", "label": "Stock or Units Available for Distributions", "terseLabel": "Stock or Units Available for Distributions" } } }, "localname": "StockOrUnitsAvailableForDistributions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/InvestmentsAdditionalInformationDetails", "http://www.groupon.com/role/InvestmentsSummaryOfInvestmentsDetails" ], "xbrltype": "sharesItemType" }, "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": "Stock Repurchase Program, Authorized Amount" } } }, "localname": "StockRepurchaseProgramAuthorizedAmount1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.", "label": "Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased", "terseLabel": "Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased" } } }, "localname": "StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedDuringPeriodShares": { "auth_ref": [ "r60", "r61", "r356", "r363" ], "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": "Stock Repurchased During Period, Shares" } } }, "localname": "StockRepurchasedDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedDuringPeriodValue": { "auth_ref": [ "r60", "r61", "r356", "r363" ], "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", "terseLabel": "Stock Repurchased During Period, Value" } } }, "localname": "StockRepurchasedDuringPeriodValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r61", "r65", "r66", "r247" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "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", "totalLabel": "Total Groupon, Inc. Stockholders' Equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Stockholders' Equity Attributable to Parent [Abstract]", "terseLabel": "Stockholders' Equity" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r482", "r483", "r495" ], "calculation": { "http://www.groupon.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.", "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "totalLabel": "Total Equity" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityNoteDisclosureTextBlock": { "auth_ref": [ "r366" ], "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": "STOCKHOLDERS' EQUITY" } } }, "localname": "StockholdersEquityNoteDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/StockholdersEquity" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubleaseIncome": { "auth_ref": [ "r557", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "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": "Sublease income, gross (2)", "terseLabel": "Sublease Income" } } }, "localname": "SubleaseIncome", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/LeasesTotalLeaseCostDetails", "http://www.groupon.com/role/RelatedPartyTransactionDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SubsequentEventLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.", "label": "Subsequent Event [Line Items]", "terseLabel": "Subsequent Event [Line Items]" } } }, "localname": "SubsequentEventLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTable": { "auth_ref": [ "r575" ], "lang": { "en-US": { "role": { "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.", "label": "Subsequent Event [Table]", "terseLabel": "Subsequent Event [Table]" } } }, "localname": "SubsequentEventTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r575" ], "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r575" ], "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.groupon.com/role/FinancingArrangementsConvertibleSeniorNotesDetails", "http://www.groupon.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Subsequent Events [Abstract]" } } }, "localname": "SubsequentEventsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r576" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.", "label": "Subsequent Events [Text Block]", "terseLabel": "Subsequent Events" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SubsequentEvents" ], "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.groupon.com/role/CondensedConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions": { "auth_ref": [ "r416", "r421" ], "calculation": { "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails": { "order": 7.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.", "label": "Tax Adjustments, Settlements, and Unusual Provisions", "terseLabel": "Adjustments related to uncertain tax positions" } } }, "localname": "TaxAdjustmentsSettlementsAndUnusualProvisions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesDifferencesBetweenIncomeTaxProvisionBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TaxesPayableCurrent": { "auth_ref": [ "r80" ], "calculation": { "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_AccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Taxes Payable, Current", "terseLabel": "Income taxes payable" } } }, "localname": "TaxesPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SupplementalConsolidatedBalanceSheetsAndStatementsOfOperationsInformationScheduleOfAccruedExpenseAndOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TradeAndOtherAccountsReceivablePolicy": { "auth_ref": [ "r242", "r243", "r244", "r245", "r246", "r248" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for accounts receivable.", "label": "Accounts Receivable [Policy Text Block]", "terseLabel": "Accounts Receivable, Net" } } }, "localname": "TradeAndOtherAccountsReceivablePolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_TradeNamesMember": { "auth_ref": [ "r469" ], "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.groupon.com/role/BusinessCombinationsAdditionalInformationDetails", "http://www.groupon.com/role/BusinessCombinationsAllocationOfAggregateAcquisitionPriceDetails", "http://www.groupon.com/role/BusinessCombinationsSummaryOfFairValueOfConsiderationTransferredInAcquisitionDetails", "http://www.groupon.com/role/GoodwillAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r582" ], "lang": { "en-US": { "role": { "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.", "label": "Financial Instruments [Domain]", "terseLabel": "Financial Instruments [Domain]" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/FairValueMeasurementsFairValueAssetsAndLiabilitiesReconciliationOfLevel3InputsDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockMember": { "auth_ref": [ "r92", "r364" ], "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.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockShares": { "auth_ref": [ "r92", "r364" ], "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", "negatedPeriodEndLabel": "Treasury stock, ending balance (in shares)", "negatedPeriodStartLabel": "Treasury stock, beginning balance (in shares)", "terseLabel": "Treasury stock (in shares)" } } }, "localname": "TreasuryStockShares", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedBalanceSheetsParenthetical", "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockSharesAcquired": { "auth_ref": [ "r61", "r356", "r363" ], "lang": { "en-US": { "role": { "documentation": "Number of shares that have been repurchased during the period and are being held in treasury.", "label": "Treasury Stock, Shares, Acquired", "negatedTerseLabel": "Repurchases of common stock (in shares)" } } }, "localname": "TreasuryStockSharesAcquired", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockValue": { "auth_ref": [ "r92", "r364", "r365" ], "calculation": { "http://www.groupon.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", "negatedPeriodEndLabel": "Treasury stock, ending balance", "negatedPeriodStartLabel": "Treasury stock, beginning balance", "negatedTerseLabel": "Treasury stock, at cost, 205,882,355 and 191,855,128 shares at December 31, 2019 and December 31, 2018" } } }, "localname": "TreasuryStockValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_TreasuryStockValueAcquiredParValueMethod": { "auth_ref": [ "r356", "r363", "r364" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.", "label": "Treasury Stock, Value, Acquired, Par Value Method", "negatedTerseLabel": "Repurchases of common stock" } } }, "localname": "TreasuryStockValueAcquiredParValueMethod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity" ], "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.groupon.com/role/CondensedConsolidatedStatementsOfStockholdersEquity", "http://www.groupon.com/role/LeasesAdditionalInformationDetails", "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesAdditionalInformationDetails" ], "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.groupon.com/role/FairValueMeasurementsAdditionalInformationDetails", "http://www.groupon.com/role/FairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails", "http://www.groupon.com/role/RestructuringScheduleOfRestructuringLiabilityDetails", "http://www.groupon.com/role/RestructuringSummaryOfCostsIncurredBySegmentRelatedToRestructuringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnrecognizedTaxBenefits": { "auth_ref": [ "r422", "r434" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrecognized tax benefits.", "label": "Unrecognized Tax Benefits", "periodEndLabel": "Ending Balance", "periodStartLabel": "Beginning Balance" } } }, "localname": "UnrecognizedTaxBenefits", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation": { "auth_ref": [ "r434" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.", "label": "Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation", "negatedTerseLabel": "Foreign currency translation" } } }, "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions": { "auth_ref": [ "r435" ], "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": "Decreases related to prior year tax positions" } } }, "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities": { "auth_ref": [ "r437" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.", "label": "Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities", "terseLabel": "Decreases based on settlements with taxing authorities" } } }, "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions": { "auth_ref": [ "r436" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.", "label": "Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions", "terseLabel": "Increases related to current year tax positions" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation": { "auth_ref": [ "r434" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from foreign currency translation.", "label": "Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation", "terseLabel": "Foreign currency translation" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions": { "auth_ref": [ "r435" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.", "label": "Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions", "terseLabel": "Increases related to prior year tax positions" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations": { "auth_ref": [ "r438" ], "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", "negatedTerseLabel": "Decreases due to lapse of statute limitations" } } }, "localname": "UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate": { "auth_ref": [ "r439" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.", "label": "Unrecognized Tax Benefits that Would Impact Effective Tax Rate", "terseLabel": "Unrecognized Tax Benefits that Would Impact Effective Tax Rate" } } }, "localname": "UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r213", "r214", "r215", "r216", "r217", "r218", "r219" ], "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": "Use of Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/SummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember": { "auth_ref": [ "r186" ], "lang": { "en-US": { "role": { "documentation": "Valuation allowance of deferred tax asset attributable to deductible temporary difference and carryforward.", "label": "SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]", "terseLabel": "Tax Valuation Allowance" } } }, "localname": "ValuationAllowanceOfDeferredTaxAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesBalance": { "auth_ref": [ "r187" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount", "periodEndLabel": "Balance at End of Year", "periodStartLabel": "Balance at Beginning of Year" } } }, "localname": "ValuationAllowancesAndReservesBalance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense": { "auth_ref": [ "r187" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense", "terseLabel": "Net Increase (Decrease) to Expense (1)" } } }, "localname": "ValuationAllowancesAndReservesChargedToCostAndExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]", "terseLabel": "SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]" } } }, "localname": "ValuationAllowancesAndReservesDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesPeriodIncreaseDecrease": { "auth_ref": [ "r187" ], "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Period Increase (Decrease)", "terseLabel": "Acquisitions and Other" } } }, "localname": "ValuationAllowancesAndReservesPeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesTypeAxis": { "auth_ref": [ "r187" ], "lang": { "en-US": { "role": { "documentation": "Information by valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]", "terseLabel": "SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]" } } }, "localname": "ValuationAllowancesAndReservesTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityOwnershipPercentage": { "auth_ref": [ "r494" ], "lang": { "en-US": { "role": { "documentation": "Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).", "label": "Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage", "terseLabel": "Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage" } } }, "localname": "VariableInterestEntityOwnershipPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/VariableInterestEntityDetails" ], "xbrltype": "percentItemType" }, "us-gaap_VariableLeaseCost": { "auth_ref": [ "r556", "r564" ], "calculation": { "http://www.groupon.com/role/LeasesTotalLeaseCostDetails": { "order": 3.0, "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.groupon.com/role/LeasesTotalLeaseCostDetails" ], "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "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.groupon.com/role/FinancingArrangementsRevolvingCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WarrantMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Security that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.", "label": "Warrant [Member]", "terseLabel": "Warrants" } } }, "localname": "WarrantMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": { "auth_ref": [ "r200" ], "lang": { "en-US": { "role": { "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.", "label": "Weighted Average Number Diluted Shares Outstanding Adjustment", "terseLabel": "Weighted Average Number Diluted Shares Outstanding Adjustment" } } }, "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r196", "r200" ], "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 Number of Shares Outstanding, Diluted", "verboseLabel": "Diluted (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]", "terseLabel": "Weighted average number of shares outstanding:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r195", "r200" ], "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": "Basic (in shares)", "verboseLabel": "Weighted-average common shares outstanding (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.groupon.com/role/ConsolidatedStatementsOfOperations", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfComputationOfBasicAndDilutedNetIncomeLossPerShareDetails", "http://www.groupon.com/role/IncomeLossPerShareScheduleOfWeightedAveragePotentiallyDilutiveInstrumentsDetails" ], "xbrltype": "sharesItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721533-107759" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=d3e1012-107759" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a),(b),(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a-c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(i),(j),(k)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(i-k)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580" }, "r107": { "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" }, "r108": { "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" }, "r109": { "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" }, "r11": { "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" }, "r110": { "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" }, "r111": { "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" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e689-108580" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e709-108580" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "17A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL34724391-108580" }, "r115": { "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" }, "r116": { "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" }, "r117": { "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" }, "r118": { "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" }, "r119": { "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" }, "r12": { "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" }, "r120": { "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" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580" }, "r122": { "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" }, "r123": { "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" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(13))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868656-224227" }, "r125": { "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" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(10))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r128": { "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" }, "r129": { "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" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760" }, "r130": { "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" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.1)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r132": { "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" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.13)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r134": { "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" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.2)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.3)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r137": { "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" }, "r138": { "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" }, "r139": { "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" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1474-107760" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "8", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r141": { "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" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585" }, "r145": { "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" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585" }, "r147": { "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" }, "r148": { "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" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721659-107760" }, "r150": { "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" }, "r151": { "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" }, "r152": { "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" }, "r153": { "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" }, "r154": { "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" }, "r155": { "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" }, "r156": { "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" }, "r157": { "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" }, "r158": { "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" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721663-107760" }, "r160": { "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" }, "r161": { "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" }, "r162": { "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" }, "r163": { "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" }, "r164": { "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" }, "r165": { "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" }, "r166": { "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" }, "r167": { "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" }, "r168": { "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" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721665-107760" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586" }, "r172": { "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" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513396&loc=SL98516241-196980" }, "r174": { "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" }, "r175": { "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" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r178": { "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" }, "r179": { "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" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721671-107760" }, "r180": { "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" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(d),(e))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r182": { "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" }, "r183": { "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" }, "r184": { "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" }, "r185": { "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" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(ColumnA))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690" }, "r187": { "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" }, "r188": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r189": { "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" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760" }, "r190": { "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" }, "r191": { "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" }, "r192": { "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" }, "r193": { "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" }, "r194": { "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" }, "r195": { "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" }, "r196": { "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" }, "r197": { "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" }, "r198": { "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" }, "r199": { "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" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721491-107759" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760" }, "r200": { "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" }, "r201": { "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" }, "r202": { "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" }, "r203": { "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" }, "r204": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e725-108305" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e765-108305" }, "r207": { "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" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e639-108305" }, "r209": { "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" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "5B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=118952077&loc=SL77927221-108306" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.10-01.(b)(6))", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699" }, "r212": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "270", "URI": "http://asc.fasb.org/topic&trid=2126967" }, "r213": { "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" }, "r214": { "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" }, "r215": { "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" }, "r216": { "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" }, "r217": { "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" }, "r218": { "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" }, "r219": { "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" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "5C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760" }, "r220": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r221": { "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" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r223": { "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" }, "r224": { "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" }, "r225": { "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" }, "r226": { "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" }, "r227": { "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" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599" }, "r229": { "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" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "5C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r233": { "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" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8924-108599" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599" }, "r238": { "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" }, "r239": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "280", "URI": "http://asc.fasb.org/topic&trid=2134510" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "5D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721677-107760" }, "r240": { "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" }, "r241": { "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" }, "r242": { "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" }, "r243": { "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" }, "r244": { "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" }, "r245": { "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" }, "r246": { "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" }, "r247": { "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" }, "r248": { "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" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27198-111563" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27337-111563" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27340-111563" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)-(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563" }, "r26": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/subtopic&trid=2122178" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33912-111571" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(b)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r27": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r270": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "323", "URI": "http://asc.fasb.org/topic&trid=2196965" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919244-210447" }, "r272": { "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" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(e)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921835-210448" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(e)(2)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955255&loc=SL82921835-210448" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455" }, "r28": { "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" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922895-210455" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118942371&loc=SL82922954-210456" }, "r283": { "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" }, "r284": { "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" }, "r285": { "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" }, "r286": { "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" }, "r287": { "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" }, "r288": { "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" }, "r289": { "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" }, "r29": { "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" }, "r290": { "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" }, "r291": { "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" }, "r292": { "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" }, "r293": { "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" }, "r294": { "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" }, "r295": { "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" }, "r296": { "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" }, "r297": { "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" }, "r298": { "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" }, "r299": { "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" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721494-107759" }, "r30": { "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" }, "r300": { "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" }, "r301": { "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" }, "r302": { "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" }, "r303": { "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" }, "r304": { "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" }, "r305": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226317&loc=d3e202-110218" }, "r307": { "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" }, "r308": { "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" }, "r309": { "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" }, "r31": { "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" }, "r310": { "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" }, "r311": { "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" }, "r312": { "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" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=SL51724579-110230" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.CC)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742" }, "r316": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "360", "URI": "http://asc.fasb.org/topic&trid=2155823" }, "r317": { "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" }, "r318": { "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" }, "r319": { "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" }, "r32": { "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" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869" }, "r321": { "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" }, "r322": { "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" }, "r323": { "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" }, "r324": { "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" }, "r325": { "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" }, "r326": { "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" }, "r327": { "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" }, "r328": { "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" }, "r329": { "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" }, "r33": { "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" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.P.4(c))", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747" }, "r331": { "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" }, "r332": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "420", "URI": "http://asc.fasb.org/topic&trid=2175745" }, "r333": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r334": { "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" }, "r335": { "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" }, "r336": { "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" }, "r337": { "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" }, "r338": { "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" }, "r339": { "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" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6812-107765" }, "r340": { "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" }, "r341": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r342": { "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" }, "r343": { "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" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109126253&loc=d3e4852-112606" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870" }, "r35": { "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" }, "r350": { "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" }, "r351": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(CFRR 211.02)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21553-112644" }, "r356": { "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" }, "r357": { "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" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6935-107765" }, "r360": { "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" }, "r361": { "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" }, "r362": { "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" }, "r363": { "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" }, "r364": { "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" }, "r365": { "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" }, "r366": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "505", "URI": "http://asc.fasb.org/topic&trid=2208762" }, "r367": { "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" }, "r368": { "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" }, "r369": { "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" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e7018-107765" }, "r370": { "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" }, "r371": { "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" }, "r372": { "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" }, "r373": { "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" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(i)(1)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048" }, "r376": { "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" }, "r377": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "712", "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664" }, "r379": { "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" }, "r38": { "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" }, "r380": { "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" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(j)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r383": { "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" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920" }, "r386": { "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" }, "r387": { "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" }, "r388": { "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" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(27)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r390": { "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" }, "r391": { "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" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r393": { "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" }, "r394": { "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" }, "r395": { "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" }, "r396": { "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" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r398": { "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" }, "r399": { "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" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721494-107759" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(24))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r400": { "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" }, "r401": { "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" }, "r402": { "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" }, "r403": { "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" }, "r404": { "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" }, "r405": { "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" }, "r406": { "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" }, "r407": { "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" }, "r408": { "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" }, "r409": { "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" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(25))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r410": { "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" }, "r411": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r412": { "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" }, "r413": { "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" }, "r414": { "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" }, "r415": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28511-109314" }, "r417": { "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" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(26))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r420": { "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" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28446-109314" }, "r422": { "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" }, "r423": { "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" }, "r424": { "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" }, "r425": { "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" }, "r426": { "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" }, "r427": { "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" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319" }, "r429": { "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" }, "r43": { "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" }, "r430": { "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" }, "r431": { "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" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319" }, "r433": { "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" }, "r434": { "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" }, "r435": { "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" }, "r436": { "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" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r438": { "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" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(10))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r440": { "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" }, "r441": { "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" }, "r442": { "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" }, "r443": { "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" }, "r444": { "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" }, "r445": { "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" }, "r446": { "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" }, "r447": { "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" }, "r448": { "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" }, "r449": { "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" }, "r45": { "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" }, "r450": { "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" }, "r451": { "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" }, "r452": { "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" }, "r453": { "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" }, "r454": { "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" }, "r455": { "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" }, "r456": { "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" }, "r457": { "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" }, "r458": { "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" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(12))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38976-109324" }, "r461": { "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" }, "r462": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Subparagraph": "(a)-(d)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=6909625&loc=d3e227-128457" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "37", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472" }, "r469": { "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" }, "r47": { "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" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5333-128473" }, "r471": { "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" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "25", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(4)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(c)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r48": { "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" }, "r480": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "805", "URI": "http://asc.fasb.org/topic&trid=2303972" }, "r481": { "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" }, "r482": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683" }, "r483": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683" }, "r484": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4613673-111683" }, "r485": { "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" }, "r486": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4613674-111683" }, "r488": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684" }, "r489": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(15))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r490": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r491": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r492": { "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" }, "r493": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684" }, "r494": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r495": { "Name": "Accounting Standards Codification", "Paragraph": "4I", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "4J", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686" }, "r497": { "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" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-02)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355033-122828" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-03)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355100-122828" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "1C", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721501-107759" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(16))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-04)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355119-122828" }, "r501": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959" }, "r502": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959" }, "r503": { "Name": "Accounting Standards Codification", "Paragraph": "4F", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624186-113959" }, "r504": { "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" }, "r505": { "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" }, "r506": { "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" }, "r507": { "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" }, "r508": { "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" }, "r509": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r51": { "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" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r511": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r512": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r513": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r514": { "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" }, "r515": { "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" }, "r516": { "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" }, "r517": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=SL116692626-108610" }, "r518": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r519": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612" }, "r52": { "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" }, "r520": { "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" }, "r521": { "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" }, "r522": { "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" }, "r523": { "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" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32022-110900" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32157-110900" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(b,c)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r527": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r528": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r529": { "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" }, "r53": { "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" }, "r530": { "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" }, "r531": { "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" }, "r532": { "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" }, "r533": { "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" }, "r534": { "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" }, "r535": { "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" }, "r536": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77902458&loc=d3e39927-112707" }, "r537": { "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" }, "r538": { "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" }, "r539": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77891322&loc=d3e41620-112719" }, "r54": { "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" }, "r540": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164758&loc=d3e45014-112735" }, "r541": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164758&loc=d3e45023-112735" }, "r542": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164758&loc=d3e45031-112735" }, "r543": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737" }, "r544": { "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" }, "r545": { "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" }, "r546": { "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" }, "r547": { "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" }, "r548": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977" }, "r549": { "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" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(23))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r550": { "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" }, "r551": { "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" }, "r552": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980" }, "r553": { "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" }, "r554": { "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" }, "r555": { "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" }, "r556": { "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" }, "r557": { "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" }, "r558": { "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" }, "r559": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r56": { "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" }, "r560": { "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" }, "r561": { "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" }, "r562": { "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" }, "r563": { "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" }, "r564": { "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" }, "r565": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r566": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981" }, "r567": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919359-209981" }, "r568": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981" }, "r569": { "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" }, "r57": { "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" }, "r570": { "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" }, "r571": { "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" }, "r572": { "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" }, "r573": { "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" }, "r574": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "850", "URI": "http://asc.fasb.org/topic&trid=2122745" }, "r575": { "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" }, "r576": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r577": { "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" }, "r578": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r579": { "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" }, "r58": { "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" }, "r580": { "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" }, "r581": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107314-111719" }, "r582": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r583": { "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" }, "r584": { "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" }, "r585": { "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" }, "r586": { "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" }, "r587": { "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" }, "r588": { "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" }, "r589": { "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" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r590": { "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" }, "r591": { "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" }, "r592": { "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" }, "r593": { "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" }, "r594": { "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" }, "r595": { "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" }, "r596": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "940", "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953" }, "r597": { "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" }, "r598": { "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" }, "r599": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721503-107759" }, "r60": { "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" }, "r600": { "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" }, "r601": { "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" }, "r602": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r603": { "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" }, "r604": { "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" }, "r605": { "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" }, "r606": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(19))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r607": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(15))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r608": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(20))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r609": { "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" }, "r61": { "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" }, "r610": { "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" }, "r611": { "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" }, "r612": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62557-112803" }, "r613": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803" }, "r614": { "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" }, "r615": { "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" }, "r616": { "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" }, "r617": { "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" }, "r618": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(15)(b)(1))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r619": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r62": { "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" }, "r620": { "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" }, "r621": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(24))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r622": { "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" }, "r623": { "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" }, "r624": { "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" }, "r625": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.1(h))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r626": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.5(c))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r627": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(11))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r628": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r629": { "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" }, "r63": { "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" }, "r630": { "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" }, "r631": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r632": { "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" }, "r633": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r634": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "205", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=25866437&loc=d3e10246-115837" }, "r635": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-04.16(a))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996" }, "r636": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-04.16)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996" }, "r637": { "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" }, "r638": { "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" }, "r639": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12(2)(i))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010" }, "r64": { "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" }, "r640": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12C(1)(a))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010" }, "r641": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13(1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010" }, "r642": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column A))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010" }, "r643": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=116631420&loc=SL116631458-115580" }, "r644": { "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" }, "r645": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "55", "SubTopic": "840", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=84167768&loc=d3e56872-110439" }, "r646": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756" }, "r647": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756" }, "r648": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756" }, "r649": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r65": { "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" }, "r650": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-23" }, "r651": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r652": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1-" }, "r653": { "Name": "Forms 10-K, 20-F, 40-F", "Number": "240", "Publisher": "SEC", "Section": "15", "Subsection": "d-1" }, "r654": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r655": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r656": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "12", "Subsection": "04" }, "r657": { "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "09" }, "r66": { "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" }, "r67": { "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" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(5))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(7))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r71": { "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" }, "r72": { "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" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.12)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r74": { "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" }, "r75": { "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" }, "r76": { "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" }, "r77": { "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" }, "r78": { "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" }, "r79": { "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" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r81": { "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" }, "r82": { "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" }, "r83": { "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" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r85": { "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" }, "r86": { "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" }, "r87": { "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" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.26(c))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r89": { "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" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "3B", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28,29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r91": { "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" }, "r92": { "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" }, "r93": { "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" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r95": { "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" }, "r96": { "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" }, "r97": { "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" }, "r98": { "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" }, "r99": { "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" } }, "version": "2.1" }