$GRPN
Groupon, Inc. Stock $grpn

$grpn Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000149028120000021 Filed on February 18, 2020

Income Statement

Concept	2019 Q4	2019 Q3	2019 Q2
Revenue	$612.3M	$495.6M	$532.6M
YoY Change	-23.45%	-16.41%	-13.74%
Cost Of Revenue	$302.3M	$217.7M	$240.4M
YoY Change	-30.33%	-24.13%	-18.14%
Gross Profit	$310.0M	$277.9M	$292.1M
YoY Change	-15.31%	-9.17%	-9.74%
Gross Profit Margin	50.63%	56.08%	54.85%
Selling, General & Admin	$269.9M	$198.4M	$210.4M
YoY Change	-11.28%	23.8%	-28.37%
% of Gross Profit	87.05%	71.38%	72.02%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$24.40M	$25.80M	$27.20M
YoY Change	-14.39%	-10.1%	-6.21%
% of Gross Profit	7.87%	9.28%	9.31%
Operating Expenses	$269.9M	$273.3M	$299.3M
YoY Change	-11.3%	8.04%	-22.85%
Operating Profit	$40.11M	$4.637M	-$7.139M
YoY Change	-35.18%	-91.25%	-88.89%
Interest Expense	$48.90M	$6.029M	$5.442M
YoY Change	-482.03%	5.53%	4.09%
% of Operating Profit	121.93%	130.02%
Other Income/Expense, Net	$400.0K	-$17.25M	-$28.49M
YoY Change	-200.0%	255.0%	7.7%
Pretax Income	$79.40M	-$12.62M	-$35.63M
YoY Change	63.04%	-126.19%	-60.71%
Income Tax	$200.0K	$2.069M	$2.012M
% Of Pretax Income	0.25%
Net Earnings	$77.04M	-$16.69M	-$40.25M
YoY Change	66.65%	-137.4%	-57.65%
Net Earnings / Revenue	12.58%	-3.37%	-7.56%
Basic Earnings Per Share	$0.14	-$0.03	-$0.07
Diluted Earnings Per Share	$0.13	-$0.03	-$0.07
COMMON SHARES
Basic Shares Outstanding	564.7M shares	28.35M shares	28.40M shares
Diluted Shares Outstanding		28.35M shares	28.40M shares

Balance Sheet

Concept	2019 Q4	2019 Q3	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$750.9M	$567.3M	$596.8M
YoY Change	-10.71%	-0.89%	-11.11%
Cash & Equivalents	$750.9M	$567.3M	$596.8M
Short-Term Investments
Other Short-Term Assets	$24.78M	$15.51M	$22.71M
YoY Change	27.4%	-20.18%	15.79%
Inventory	$25.40M	$27.40M	$29.20M
Prepaid Expenses	$27.08M	$31.87M	$32.41M
Receivables	$54.95M	$56.09M	$74.71M
Other Receivables	$4.700M	$6.900M	$6.700M
Total Short-Term Assets	$887.9M	$705.0M	$762.6M
YoY Change	-11.09%	-6.24%	-9.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$125.0M	$133.1M	$134.7M
YoY Change	-12.69%	-9.41%	-9.28%
Goodwill	$325.0M	$319.6M	$324.7M
YoY Change	-0.15%	-2.4%	-1.25%
Intangibles	$35.29M	$36.50M	$39.00M
YoY Change	-22.27%	-25.56%	5.18%
Long-Term Investments	$1.405M	$4.931M	$4.917M
YoY Change	-98.1%	-93.39%	-93.44%
Other Assets	$28.61M	$26.27M	$24.44M
YoY Change	36.29%	36.49%	16.08%
Total Long-Term Assets	$698.8M	$665.7M	$676.6M
YoY Change	8.6%	2.11%	4.9%
TOTAL ASSETS
Total Short-Term Assets	$887.9M	$705.0M	$762.6M
Total Long-Term Assets	$698.8M	$665.7M	$676.6M
Total Assets	$1.587B	$1.371B	$1.439B
YoY Change	-3.37%	-2.37%	-3.32%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$20.42M	$21.49M	$26.97M
YoY Change	-46.78%	27.81%	17.12%
Accrued Expenses	$260.2M	$239.1M	$258.6M
YoY Change	-2.56%	-11.35%	-29.63%
Deferred Revenue	$17.95M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.000M	$8.900M	$11.20M
YoY Change	-53.49%	-57.62%	-52.94%
Total Short-Term Liabilities	$821.5M	$688.8M	$749.7M
YoY Change	-14.17%	-10.68%	-18.4%
LONG-TERM LIABILITIES
Long-Term Debt	$220.7M	$211.4M	$208.1M
YoY Change	3.03%	0.28%	-0.19%
Other Long-Term Liabilities	$44.99M	$14.12M	$16.82M
YoY Change	371.36%	46.91%	58.02%
Total Long-Term Liabilities	$44.99M	$50.96M	$53.74M
YoY Change	-55.32%	-50.3%	-47.94%
TOTAL LIABILITIES
Total Short-Term Liabilities	$821.5M	$688.8M	$749.7M
Total Long-Term Liabilities	$44.99M	$50.96M	$53.74M
Total Liabilities	$1.192B	$1.070B	$1.133B
YoY Change	-5.39%	-0.25%	-6.94%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.033B	-$1.110B	-$1.093B
YoY Change	2.21%	5.03%	-0.74%
Common Stock	$4.000K	$76.00K	$76.00K
YoY Change	-94.74%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$922.7M	$922.7M	$907.6M
YoY Change	5.15%	6.37%	4.63%
Treasury Stock Shares	10.29M shares
Shareholders Equity	$393.9M	$300.4M	$305.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.587B	$1.371B	$1.439B
YoY Change	-3.37%	-2.37%	-3.32%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2019 Q2
OPERATING ACTIVITIES
Net Income	$77.04M	-$16.69M	-$40.25M
YoY Change	66.65%	-137.4%	-57.65%
Depreciation, Depletion And Amortization	$24.40M	$25.80M	$27.20M
YoY Change	-14.39%	-10.1%	-6.21%
Cash From Operating Activities	$201.4M	$18.60M	-$1.200M
YoY Change	-37.82%	-132.4%	-102.72%
INVESTING ACTIVITIES
Capital Expenditures	-$16.20M	-$19.50M	-$17.30M
YoY Change	-5.81%	-40.0%	-3.35%
Acquisitions
YoY Change
Other Investing Activities	$3.500M	$0.00	$0.00
YoY Change	-1266.67%	-100.0%	-100.0%
Cash From Investing Activities	-$12.70M	-$19.50M	-$17.30M
YoY Change	-27.43%	-12.95%	-77.15%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-10.60M	-22.60M	-31.60M
YoY Change	-69.8%	132.99%	68.98%
NET CHANGE
Cash From Operating Activities	201.4M	18.60M	-1.200M
Cash From Investing Activities	-12.70M	-19.50M	-17.30M
Cash From Financing Activities	-10.60M	-22.60M	-31.60M
Net Change In Cash	178.1M	-23.50M	-50.10M
YoY Change	-34.35%	-73.74%	-0.4%
FREE CASH FLOW
Cash From Operating Activities	$201.4M	$18.60M	-$1.200M
Capital Expenditures	-$16.20M	-$19.50M	-$17.30M
Free Cash Flow	$217.6M	$38.10M	$16.10M
YoY Change	-36.21%	-253.01%	-74.03%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	1-35335
CY2019	dei	Entity Registrant Name EntityRegistrantName	Groupon, Inc.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-0903295
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001490281
CY2018Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	84242000	USD
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	1405000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Renewal Term LessorOperatingLeaseRenewalTerm	P5Y
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	34000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	76000	USD
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	600 W Chicago Avenue
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60654
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 400
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2019	dei	City Area Code CityAreaCode	(312)
CY2019	dei	Local Phone Number LocalPhoneNumber	334-1579
CY2019	dei	Security12b Title Security12bTitle	Common stock, par value $0.0001 per share
CY2019	dei	Trading Symbol TradingSymbol	GRPN
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	69493000	USD
CY2019Q4	us-gaap	Investments Investments	76576000	USD
CY2018Q4	us-gaap	Investments Investments	108515000	USD
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	82073000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	88115000	USD
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018Q4	grpn	Operating Lease Rightof Use Asset Net OperatingLeaseRightofUseAssetNet	0	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	28605000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	20989000	USD
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	1626327012	USD
CY2019Q4	us-gaap	Assets Assets	1586743000	USD
CY2018Q4	us-gaap	Assets Assets	1642142000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	20415000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	887913000	USD
CY2019	dei	Document Type DocumentType	10-K
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	38359000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	566915978	shares
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2310320000	USD
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2018Q4	us-gaap	Assets Current AssetsCurrent	998629000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	124950000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2234560000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	922666000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	877491000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1032876000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	143117000	USD
CY2019Q4	grpn	Operating Lease Rightof Use Asset Net OperatingLeaseRightofUseAssetNet	108390000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1010499000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	39081000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	34602000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	393936000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	841021000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	54953000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	381248000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	1110000	USD
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CY2018Q4	us-gaap	Minority Interest MinorityInterest	1363000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	395046000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	750887000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	325017000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	325491000	USD
CY2019Q4	grpn	Accruedmerchantandsupplierpayable Accruedmerchantandsupplierpayable	540940000	USD
CY2018Q4	grpn	Accruedmerchantandsupplierpayable Accruedmerchantandsupplierpayable	651781000	USD
CY2019Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	260192000	USD
CY2018Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	267034000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	821547000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	957174000	USD
CY2019Q4	us-gaap	Convertible Debt Noncurrent ConvertibleDebtNoncurrent	214869000	USD
CY2018Q4	us-gaap	Convertible Debt Noncurrent ConvertibleDebtNoncurrent	201669000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	110294000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	44987000	USD
CY2018Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	100688000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	1191697000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	382611000	USD
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CY2018Q4	us-gaap	Liabilities Liabilities	1259531000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	77000	USD
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CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	29435000	USD
CY2019	us-gaap	Gross Profit GrossProfit	1186129000	USD
CY2018	us-gaap	Gross Profit GrossProfit	1320601000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2218915000	USD
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CY2017	us-gaap	Gross Profit GrossProfit	1333861000	USD
CY2019	us-gaap	Marketing Expense MarketingExpense	339355000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2636746000	USD
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CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1032786000	USD
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CY2019	us-gaap	Operating Expenses OperatingExpenses	1146331000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	1266562000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	1304426000	USD
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CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	901829000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	31000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-22377000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	-136000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	18828000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Intangible Assets GainLossOnDispositionOfIntangibleAssets	0	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53329000	USD
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CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6710000	USD
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CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36145000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	761000	USD
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CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2597000	USD
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CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.02
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CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10682000	USD
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CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.02
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CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.04
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.00
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2017	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.01
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	568418371	shares
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-7216000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	4585000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	419000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10682000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	13067000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	12587000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-17898000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8482000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-12168000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	265062000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	419000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	230000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	5283000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	27188000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	83656000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	60026000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	12357000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	251845000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	4585000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	81000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	5634000	USD
CY2018	grpn	Shares Issued To Settle Liability Classified Awards SharesIssuedToSettleLiabilityClassifiedAwards	6436000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	22709000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2597000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	70411000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	17413000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	10041000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	1988000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4083000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	26627000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	12576000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	382611000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-7216000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	40000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	89051000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	45175000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	10935000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	395046000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-11695000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1974000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-14292000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1988000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	28601000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	91410000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	101330000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	114795000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14355000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14498000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23032000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	81615000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	64821000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	82044000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Intangible Assets GainLossOnDispositionOfIntangibleAssets	0	USD
CY2018	us-gaap	Gain Loss On Disposition Of Intangible Assets GainLossOnDispositionOfIntangibleAssets	0	USD
CY2017	us-gaap	Gain Loss On Disposition Of Intangible Assets GainLossOnDispositionOfIntangibleAssets	17149000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-412000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	7624000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	9961000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	10156000	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	2944000	USD
CY2019	grpn	Observable Price Change Adjustments Investments Upward Adjustment ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment	51397000	USD
CY2018	grpn	Observable Price Change Adjustments Investments Upward Adjustment ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment	0	USD
CY2017	grpn	Observable Price Change Adjustments Investments Upward Adjustment ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1485000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	603000	USD
CY2017	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	382000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	13200000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	11916000	USD
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	10758000	USD
CY2019	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-72497000	USD
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-9064000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	5805000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-26071000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-17401000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-13577000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-32057000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18793000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-3176000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-7166000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-4074000	USD
CY2019	grpn	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-26226000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-199000	USD
CY2019	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	-109176000	USD
CY2018	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	-45268000	USD
CY2017	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	-29823000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-31430000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-40361000	USD
CY2019	grpn	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-28552000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	6772000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-13752000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	21975000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	71283000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	190855000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	130545000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-2418000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	71283000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	190855000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	128127000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	67328000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	69695000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59158000	USD
CY2019	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	0	USD
CY2018	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	1500000	USD
CY2017	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	18333000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	3475000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	8594000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	16561000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58119000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	3738000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	18262000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1059000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-67591000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-135982000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-25323000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-9548000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-67591000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-135982000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-34871000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2384000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	45631000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9585000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	61233000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	18105000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	24105000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	27681000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4123000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5715000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5513000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	10935000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	12576000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	12357000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	19687000	USD
CY2018	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	33023000	USD
CY2017	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	34025000	USD
CY2019	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1815000	USD
CY2017	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	7790000	USD
CY2019	grpn	Payments For Finance Leases Business Acquisitions PaymentsForFinanceLeasesBusinessAcquisitions	0	USD
CY2018	grpn	Payments For Finance Leases Business Acquisitions PaymentsForFinanceLeasesBusinessAcquisitions	8391000	USD
CY2017	grpn	Payments For Finance Leases Business Acquisitions PaymentsForFinanceLeasesBusinessAcquisitions	0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-637000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-473000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-138046000	USD
CY2017	grpn	Cash Cash Equivalentsand Restricted Cash Period Increase Decrease Including Cashfrom Discontinued Operations CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations	-18291000	USD
CY2019	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	28866000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-92619000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-84417000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-3144000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-11209000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	26499000	USD
CY2019	grpn	Cash Cash Equivalentsand Restricted Cash Period Increase Decrease Including Cashfrom Discontinued Operations CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations	-92071000	USD
CY2018	grpn	Cash Cash Equivalentsand Restricted Cash Period Increase Decrease Including Cashfrom Discontinued Operations CashCashEquivalentsandRestrictedCashPeriodIncreaseDecreaseIncludingCashfromDiscontinuedOperations	-40753000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-92071000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-40753000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	10575000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	844728000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	885481000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	874906000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	752657000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	844728000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	885481000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11898000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2781000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8646000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	9145000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	9556000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	9425000	USD
CY2019	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2018	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	18064000	USD
CY2017	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	28271000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	750887000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	841021000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	880129000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	1534000	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3320000	USD
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	4932000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	236000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	387000	USD
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	420000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	752657000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	844728000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	885481000	USD
	grpn	Numberof Countries Exitedinconnectionwith Discontinued Operations NumberofCountriesExitedinconnectionwithDiscontinuedOperations	12	numberofcountries
CY2019	grpn	Hosting Arrangement Service Contract Implementation Cost Capitalized Amount Capitalized HostingArrangementServiceContractImplementationCostCapitalizedAmountCapitalized	7400000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	200000	USD
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-bottom:16px;text-align:left;padding-left:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;font-weight:bold;">Reclassifications</span></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Certain reclassifications have been made to the consolidated financial statements of prior periods and the accompanying notes to conform to the current period presentation, including the change in presentation of restricted cash in the consolidated statements of cash flows upon adoption of ASU 2016-18 as described above. </span></div>
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:16px;text-align:left;padding-left:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;font-weight:bold;">Use of Estimates</span></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">The preparation of consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the consolidated financial statements and accompanying notes. Estimates are used for, but not limited to, variable consideration from unredeemed vouchers, income taxes, leases, initial valuation and subsequent impairment testing of goodwill and intangible assets, investments, customer refunds, contingent liabilities and the useful lives of property, equipment and software and intangible assets. Actual results could differ materially from those estimates.</span></div>
CY2019Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	15	numberofcountries
	grpn	Numberof Countries Exitedinconnectionwith Discontinued Operations NumberofCountriesExitedinconnectionwithDiscontinuedOperations	12	numberofcountries
CY2019Q4	grpn	Revenuefrom Contractwith Customers Revenueconstrainedandtoberecognizedinfutureperiods RevenuefromContractwithCustomersRevenueconstrainedandtoberecognizedinfutureperiods	14600000	USD
CY2018Q4	grpn	Revenuefrom Contractwith Customers Revenueconstrainedandtoberecognizedinfutureperiods RevenuefromContractwithCustomersRevenueconstrainedandtoberecognizedinfutureperiods	13700000	USD
	grpn	Numberof Countries Exitedinconnectionwith Discontinued Operations NumberofCountriesExitedinconnectionwithDiscontinuedOperations	12	numberofcountries
	grpn	Numberof Countries Exitedinconnectionwith Discontinued Operations NumberofCountriesExitedinconnectionwithDiscontinuedOperations	12	numberofcountries
CY2016Q4	grpn	Discontinued Operations Percentageof Subsidiary Sold DiscontinuedOperationsPercentageofSubsidiarySold	0.83
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2597000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1974000	USD
CY2018Q4	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	8400000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	700000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	436384000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	447547000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	311434000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	304430000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	124950000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	143117000	USD
CY2019Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	78500000	USD
CY2018Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	120500000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	71100000	USD
CY2018Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	70900000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	91410000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	101330000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	114795000	USD
CY2019	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	56600000	USD
CY2018	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	53900000	USD
CY2017	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	57000000.0	USD
CY2019	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	18900000	USD
CY2018	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	30200000	USD
CY2017	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	35200000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	286989000	USD
CY2018	grpn	Goodwill Reallocationto New Segment GoodwillReallocationtoNewSegment	46515000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-8013000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	325491000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-474000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	325017000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	100738000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	65446000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	35292000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	107570000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	62169000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	45401000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14400000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14500000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	8791000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7692000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7118000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5956000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2316000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3419000	USD
CY2019Q4	grpn	Finite Lived Intangible Assets Amortization Expense Total FiniteLivedIntangibleAssetsAmortizationExpenseTotal	35292000	USD
CY2019Q4	us-gaap	Investments Investments	76576000	USD
CY2018Q4	us-gaap	Investments Investments	108515000	USD
CY2019Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	0	USD
CY2018Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	9961000	USD
CY2019Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	379000	USD
CY2019Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	0	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	10340000	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	8600000	USD
CY2019	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-72497000	USD
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-9064000	USD
CY2017	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	382000	USD
CY2017Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	25438000	USD
CY2018	grpn	Equity Investment Transferto Other Equity Investments EquityInvestmentTransfertoOtherEquityInvestments	4008000	USD
CY2018	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	4574000	USD
CY2018	grpn	Foreign Currency Translation Equity Investment ForeignCurrencyTranslationEquityInvestment	-599000	USD
CY2018Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	24273000	USD
CY2019	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	51397000	USD
CY2019	grpn	Equity Investment Dispositions EquityInvestmentDispositions	640000	USD
CY2019	grpn	Foreign Currency Translation Equity Investment ForeignCurrencyTranslationEquityInvestment	141000	USD
CY2019Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	75171000	USD
CY2019	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	51400000	USD
CY2016Q2	grpn	Dispositionof Intangible Assets Gross Consideration Received DispositionofIntangibleAssetsGrossConsiderationReceived	16000000.0	USD
CY2016Q2	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	7600000	USD
CY2017Q1	us-gaap	Equity Method Investments EquityMethodInvestments	400000	USD
CY2019	us-gaap	Interest Income Other InterestIncomeOther	7744000	USD
CY2018	us-gaap	Interest Income Other InterestIncomeOther	6420000	USD
CY2017	us-gaap	Interest Income Other InterestIncomeOther	3287000	USD
CY2019	us-gaap	Interest Expense InterestExpense	23593000	USD
CY2018	us-gaap	Interest Expense InterestExpense	21909000	USD
CY2017	us-gaap	Interest Expense InterestExpense	20680000	USD
CY2019	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-72497000	USD
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-9064000	USD
CY2017	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	382000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-412000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	7624000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5960000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-20325000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	18634000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	9961000	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	10156000	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	2944000	USD
CY2019	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	51397000	USD
CY2018	grpn	Observable Price Change Adjustments Investments Upward Adjustment ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment	0	USD
CY2017	grpn	Observable Price Change Adjustments Investments Upward Adjustment ObservablePriceChangeAdjustmentsInvestmentsUpwardAdjustment	0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-47000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2026000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	407000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53329000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53008000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6710000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	25426000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	33739000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	27077000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	28209000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	4791000	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	6717000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	24779000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	19450000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	82073000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	88115000	USD
CY2019Q4	grpn	Merchantpayables Merchantpayables	366573000	USD
CY2018Q4	grpn	Merchantpayables Merchantpayables	371279000	USD
CY2019Q4	grpn	Payablestosuppliersofinventories Payablestosuppliersofinventories	174367000	USD
CY2018Q4	grpn	Payablestosuppliersofinventories Payablestosuppliersofinventories	280502000	USD
CY2019Q4	grpn	Accruedmerchantandsupplierpayable Accruedmerchantandsupplierpayable	540940000	USD
CY2018Q4	grpn	Accruedmerchantandsupplierpayable Accruedmerchantandsupplierpayable	651781000	USD
CY2019Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	22002000	USD
CY2018Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	27957000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	49009000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	56173000	USD
CY2019Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	41110000	USD
CY2018Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	39094000	USD
CY2019Q4	grpn	Customercredits Customercredits	13764000	USD
CY2018Q4	grpn	Customercredits Customercredits	15118000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5044000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	8987000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	17951000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	25452000	USD
CY2019Q4	grpn	Lease Liability Current LeaseLiabilityCurrent	40768000	USD
CY2018Q4	grpn	Lease Liability Current LeaseLiabilityCurrent	17207000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	70544000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	77046000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	260192000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	267034000	USD
CY2019Q4	grpn	Operating Lease Liability Current Additional Amount Recognized Dueto Adoptionof Topic842 OperatingLeaseLiabilityCurrentAdditionalAmountRecognizedDuetoAdoptionofTopic842	25000000.0	USD
CY2019Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	30121000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	39858000	USD
CY2019Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	0	USD
CY2018Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	32186000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	5831000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	12481000	USD
CY2019Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	3903000	USD
CY2018Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	6619000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5132000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	9544000	USD
CY2019Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	44987000	USD
CY2018Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	100688000	USD
CY2019	grpn	Other Comprehensive Income Loss Foreign Currency Transactionand Translation Reclassification Adjustmentfrom Aoci Netof Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationReclassificationAdjustmentfromAOCINetofTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax	106000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax	1341000	USD
CY2019	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Tax OtherComprehensiveIncomeFinalizationOfPensionAndNonPensionPostretirementPlanValuationTax	583000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	2000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	106000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-12717000	USD
	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	243200000	USD
CY2016Q2	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0325
CY2016Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	1000	USD
CY2016Q2	us-gaap	Debt Conversion Converted Instrument Shares Issued1 DebtConversionConvertedInstrumentSharesIssued1	185.1852	shares
CY2016Q2	us-gaap	Debt Instrument Convertible Threshold Percentage Of Stock Price Trigger DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger	1.50
CY2016Q2	us-gaap	Debt Instrument Convertible Threshold Trading Days DebtInstrumentConvertibleThresholdTradingDays	20
CY2016Q2	us-gaap	Debt Instrument Convertible Threshold Consecutive Trading Days1 DebtInstrumentConvertibleThresholdConsecutiveTradingDays1	30
CY2019Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0975
CY2017	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	6800000	USD
CY2016Q2	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	4800000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	2000000.0	USD
CY2019Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	250000000	USD
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	250000000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	35131000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	48331000	USD
CY2019Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	214869000	USD
CY2018Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	201669000	USD
CY2019Q4	us-gaap	Convertible Debt Fair Value Disclosures ConvertibleDebtFairValueDisclosures	262700000	USD
CY2018Q4	us-gaap	Convertible Debt Fair Value Disclosures ConvertibleDebtFairValueDisclosures	257100000	USD
CY2019	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8128000	USD
CY2018	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8128000	USD
CY2017	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8128000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	13200000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	11916000	USD
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	10758000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	21328000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	20044000	USD
CY2017	us-gaap	Interest Expense Debt InterestExpenseDebt	18886000	USD
CY2016Q2	us-gaap	Derivative Cost Of Hedge DerivativeCostOfHedge	59100000	USD
CY2016Q2	grpn	Hedging Activity Shares Covered HedgingActivitySharesCovered	46300000	shares
CY2016Q2	grpn	Convertible Note Hedge Strike Price ConvertibleNoteHedgeStrikePrice	5.40
CY2017	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	35500000	USD
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	46300000	shares
CY2016Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	8.50
CY2016Q2	grpn	Convertible Note Hedge Strike Price ConvertibleNoteHedgeStrikePrice	5.40
CY2016Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	8.50
CY2018Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	250000000.0	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	109600000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	133832000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	28193000	USD
CY2019Q4	grpn	Lease Rightof Use Asset LeaseRightofUseAsset	162025000	USD
CY2019Q4	grpn	Accumulated Amortization Rightofuse Assets AccumulatedAmortizationRightofuseAssets	36380000	USD
CY2019Q4	grpn	Lease Rightof Use Asset Net LeaseRightofUseAssetNet	125645000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	18922000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1021000	USD
CY2019	grpn	Finance Lease Cost FinanceLeaseCost	19943000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	34397000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	8551000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	365000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	5045000	USD
CY2019	us-gaap	Lease Cost LeaseCost	58211000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	40100000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	42500000	USD
CY2018	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	6500000	USD
CY2017	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	7100000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	8510000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	39261000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	5264000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	34457000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	715000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	32546000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	12000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	24126000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	17117000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	16242000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	14501000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	163749000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	658000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20699000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	13843000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	143050000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	8012000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	32756000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	5831000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	110294000	USD
CY2019Q4	grpn	Lessee Operating Lease Liability Lease Notyet Commenced Payments Due LesseeOperatingLeaseLiabilityLeaseNotyetCommencedPaymentsDue	12300000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	18169000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	32533000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	7634000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	31116000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	4784000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	26876000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	687000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	26097000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	21944000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	31633000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	31274000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	170199000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	1586000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	29688000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	17207000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	12481000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	5027000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	5065000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	5103000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	4385000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	2333000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	2559000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	24472000	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.052
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.056
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1021000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	36723000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	19687000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3929000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	27293000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	10675000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	4671000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	4123000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	61000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	20000	USD
CY2019Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	19550000	USD
CY2019	grpn	Gainon Expirationof Indemnity Liability GainonExpirationofIndemnityLiability	2200000	USD
CY2019Q4	grpn	Indemnification Liabilities IndemnificationLiabilities	3200000	USD
CY2019Q4	grpn	Indemnification Liability Maximum Exposure IndemnificationLiabilityMaximumExposure	13300000	USD
CY2019Q4	us-gaap	Preferred Stock Capital Shares Reserved For Future Issuance PreferredStockCapitalSharesReservedForFutureIssuance	50000000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2010000000	shares
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	300000000.0	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	14027227	shares
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	45200000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	245000000.0	shares
CY2019Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	71617500	shares
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	81615000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	64821000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	82044000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	7100000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	7400000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	6200000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	4.59
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	4.10
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	43800000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	64100000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	67000000.0	USD
CY2019Q4	grpn	Criteriafor Contingently Issuable Shares CriteriaforContingentlyIssuableShares	6.00
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.498
CY2019	grpn	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Cost Of Equity Rate SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsCostOfEquityRate	0.128
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	3898508	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	1200000	shares
CY2018Q4	us-gaap	Shares Outstanding SharesOutstanding	0	shares
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage	0.25
CY2018Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	212787	shares
CY2018Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	1.80
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y4M13D
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	298000	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	74875	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0.96
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	3250	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	1.68
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	134662	shares
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	1.95
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P0M20D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	74000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	100000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3200000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4000000.0	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	18000000.0	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	25500000	USD
CY2018Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	25800000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	25400000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	25100000	USD
CY2018Q1	grpn	Customercredits Customercredits	19414000	USD
CY2018	grpn	Customer Credits Credits Issued CustomerCreditsCreditsIssued	126874000	USD
CY2018	grpn	Customer Credits Credits Redeemed CustomerCreditsCreditsRedeemed	112161000	USD
CY2018	grpn	Customer Credits Breakage Revenue Recognized CustomerCreditsBreakageRevenueRecognized	18802000	USD
CY2018	grpn	Customer Credits Foreign Currency Translation CustomerCreditsForeignCurrencyTranslation	207000	USD
CY2018Q4	grpn	Customercredits Customercredits	15118000	USD
CY2019	grpn	Customer Credits Credits Issued CustomerCreditsCreditsIssued	115031000	USD
CY2019	grpn	Customer Credits Credits Redeemed CustomerCreditsCreditsRedeemed	102682000	USD
CY2019	grpn	Customer Credits Breakage Revenue Recognized CustomerCreditsBreakageRevenueRecognized	13699000	USD
CY2019	grpn	Customer Credits Foreign Currency Translation CustomerCreditsForeignCurrencyTranslation	4000	USD
CY2019Q4	grpn	Customercredits Customercredits	13764000	USD
CY2019	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	20400000	USD
CY2018	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	25200000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	31000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	-136000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	18828000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	4121000	USD
CY2018	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	-136000	USD
CY2018	us-gaap	Payments For Restructuring PaymentsForRestructuring	2777000	USD
CY2018	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	-89000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	1119000	USD
CY2019	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	31000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	436000	USD
CY2019	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	-15000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	699000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	6758000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	23349000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	30095000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-20289000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-22318000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	6050000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-13531000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1031000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36145000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	761000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-957000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7544000	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2018	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2017	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2019	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	761000	USD
CY2018	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	-957000	USD
CY2017	us-gaap	Income Tax Expense Benefit Continuing Operations Discontinued Operations Extraordinary Items IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems	7544000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2246000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4043000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	6941000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1485000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	603000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	761000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-957000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7544000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2842000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	216000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	12651000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	5529000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2113000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	4524000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5297000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	720000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-4980000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-10074000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-7727000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-36057000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-3443000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	23012000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	5916000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	3765000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1544000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	20466000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	607000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3332000	USD
CY2019	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-12418000	USD
CY2018	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	18000	USD
CY2017	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	1824000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	6355000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	3239000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	5002000	USD
CY2019	grpn	Tax Shortfallson Stockbased Compensation TaxShortfallsonStockbasedCompensation	-2042000	USD
CY2018	grpn	Tax Shortfallson Stockbased Compensation TaxShortfallsonStockbasedCompensation	335000	USD
CY2017	grpn	Tax Shortfallson Stockbased Compensation TaxShortfallsonStockbasedCompensation	-4290000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	-3447000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	8331000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	7862000	USD
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CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	250935000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	206394000	USD
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CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	16343000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	48100000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	214700000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	343000000.0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	87637000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	87359000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	80081000	USD
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CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1500000	USD
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CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	28767000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1196000	USD
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CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
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CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	474000	USD
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CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	64361000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	87637000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	87359000	USD
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CY2017	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	200000	USD
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CY2019	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	12300000	USD
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CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2597000	USD
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CY2019Q4	us-gaap	Cost Of Revenue CostOfRevenue	302275000	USD
CY2019Q3	us-gaap	Cost Of Revenue CostOfRevenue	217672000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1298000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1529000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	73902000	USD
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CY2019	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-72497000	USD
CY2018	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-9064000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	82966000	USD
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CY2018	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-9064000	USD
CY2017	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	382000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1529000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
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CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
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CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
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CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
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CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1298000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1529000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
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CY2017	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	-0.01
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CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	12894000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	16587000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	11023000	USD
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CY2018Q3	us-gaap	Revenues Revenues	592883000	USD
CY2018Q2	us-gaap	Revenues Revenues	617396000	USD
CY2018Q1	us-gaap	Revenues Revenues	626540000	USD
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CY2018Q1	us-gaap	Cost Of Revenue CostOfRevenue	301655000	USD
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CY2018Q2	us-gaap	Gross Profit GrossProfit	323658000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	324885000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	40105000	USD
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CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	53023000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-64245000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	3385000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	79208000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-14685000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-37645000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-41170000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	49862000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	47175000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-92254000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-2795000	USD
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	435000	USD
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2162000	USD
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2018Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2018Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	77041000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-16685000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.07
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.08
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-40246000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-42487000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	46228000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	44615000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-95034000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	-6888000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.14
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.03
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.08
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.08
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.17
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.01
CY2019Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.00
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2019Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2019Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0.01
CY2018Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2018Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2018Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2018Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.03
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.13
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.03
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.07
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.08
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.08
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.08
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.17
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.01
CY2019Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.00
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2019Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2019Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0.01
CY2018Q4	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2018Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2018Q2	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2018Q1	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.03
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01

Files In Submission

Name	View Source	Status
0001490281-20-000021-index-headers.html	Edgar Link	pending
0001490281-20-000021-index.html	Edgar Link	pending
0001490281-20-000021.txt	Edgar Link	pending
0001490281-20-000021-xbrl.zip	Edgar Link	pending
a201910-k.htm	Edgar Link	pending
a201910-k_htm.xml	Edgar Link	completed
exhibit211-201910xk.htm	Edgar Link	pending
exhibit231201910-k.htm	Edgar Link	pending
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exhibit43-201910xk.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
grpn-20191231.xsd	Edgar Link	pending
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grpn-20191231_def.xml	Edgar Link	unprocessable
grpn-20191231_lab.xml	Edgar Link	unprocessable
grpn-20191231_pre.xml	Edgar Link	unprocessable
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$GRPN
Groupon, Inc. Stock $grpn

2019 Q4 Form 10-K Financial Statement

#000149028120000021 Filed on February 18, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GRPN Groupon, Inc. Stock $grpn

2019 Q4 Form 10-K Financial Statement

#000149028120000021 Filed on February 18, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GRPN
Groupon, Inc. Stock $grpn