XML 91 R60.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Investments Investments in E-Commerce and Life Media (F-Tuan) (Details) (USD $) | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Jun. 30, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2014 | Mar. 31, 2013 | Sep. 30, 2013
Investment [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Cost Method Investment |  | $ 25,000,000 grpn_PaymentstoAcquireCostMethodInvestment |  |  |  | $ 2,100,000.0 grpn_PaymentstoAcquireCostMethodInvestment | $ 13,600,000 grpn_PaymentstoAcquireCostMethodInvestment |
Gain (Loss) on Investments |  |  |  |  | 56,032,000 us-gaap_GainLossOnSaleOfInvestments |  |  |
Fair Value Inputs, Discount Rate |  | 25.00%us-gaap_FairValueInputsDiscountRate |  |  | 30.00%us-gaap_FairValueInputsDiscountRate |  |  |
investment Cost Method and AFS Debt Security |  |  |  |  | 77,500,000 grpn_InvestmentCostMethodandAFSDebtSecurity |  |  |
Other than Temporary Impairment Losses, Investments | 85,500,000 us-gaap_ImpairmentOfInvestments |  | 2,036,000 us-gaap_ImpairmentOfInvestments | 85,925,000 us-gaap_ImpairmentOfInvestments | 50,553,000 us-gaap_ImpairmentOfInvestments |  |  |
E-commerce [Member] |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |
Equity Method Investments, Ownership Percentage |  | 49.80%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_InvestmentTypeAxis = grpn_EcommerceMember |  |  |  |  |  |
F-Tuan [Member] |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Cost Method Investment |  | 25,000,000 grpn_PaymentstoAcquireCostMethodInvestment / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  |  |  |  |  | 8,000,000 grpn_PaymentstoAcquireCostMethodInvestment / us-gaap_InvestmentTypeAxis = grpn_FTuanMember
Cost Method Investments, Ownership Percentage | 19.10%grpn_CostMethodOwnershipPercentage / us-gaap_InvestmentTypeAxis = grpn_FTuanMember | 19.10%grpn_CostMethodOwnershipPercentage / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  | 19.10%grpn_CostMethodOwnershipPercentage / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  |  |  |
Preferred Stock, Liquidation Preference, Value | 85,500,000 us-gaap_PreferredStockLiquidationPreferenceValue / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  |  | 85,500,000 us-gaap_PreferredStockLiquidationPreferenceValue / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  |  |  |
Other than Temporary Impairment Losses, Investments |  |  |  | 85,500,000 us-gaap_ImpairmentOfInvestments / us-gaap_InvestmentTypeAxis = grpn_FTuanMember | 50,600,000 us-gaap_ImpairmentOfInvestments / us-gaap_InvestmentTypeAxis = grpn_FTuanMember |  |  |
August 2013 [Domain] | F-Tuan [Member] |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Cost Method Investment |  |  |  |  |  |  |  | 6,500,000 grpn_PaymentstoAcquireCostMethodInvestment / us-gaap_InvestmentTypeAxis = grpn_FTuanMember / grpn_PaymentInstallmentsAxis = grpn_August2013Domain
October 2013 [Domain] [Domain] | F-Tuan [Member] |  |  |  |  |  |  |  |
Investment [Line Items] |  |  |  |  |  |  |  |
Payments to Acquire Cost Method Investment | $ 1,500,000 grpn_PaymentstoAcquireCostMethodInvestment / us-gaap_InvestmentTypeAxis = grpn_FTuanMember / grpn_PaymentInstallmentsAxis = grpn_October2013DomainDomain |  |  | $ 1,500,000 grpn_PaymentstoAcquireCostMethodInvestment / us-gaap_InvestmentTypeAxis = grpn_FTuanMember / grpn_PaymentInstallmentsAxis = grpn_October2013DomainDomain |  |  |  |

X
- Definition Cost Method Ownership Percentage - The Company's aggregate percent ownership of cost method investment. + References No definition available. + Details
Name: | grpn_CostMethodOwnershipPercentage
Namespace Prefix: | grpn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition investment Cost Method and AFS Debt Security + References No definition available. + Details
Name: | grpn_InvestmentCostMethodandAFSDebtSecurity
Namespace Prefix: | grpn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Payments to Acquire Cost Method Investment + References No definition available. + Details
Name: | grpn_PaymentstoAcquireCostMethodInvestment
Namespace Prefix: | grpn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | invest_InvestmentLineItems
Namespace Prefix: | invest_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueInputsDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnSaleOfInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e25351-111560 + Details
Name: | us-gaap_ImpairmentOfInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Value of the difference between preference in liquidation and the par or stated values of the preferred shares. + References No definition available. + Details
Name: | us-gaap_PreferredStockLiquidationPreferenceValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | grpn_PaymentInstallmentsAxis=grpn_August2013Domain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | grpn_PaymentInstallmentsAxis=grpn_October2013DomainDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=grpn_EcommerceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=grpn_FTuanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |