$GRPN
Groupon, Inc. Stock $grpn

$grpn Overview Financials Valuation SEC Filings Company Website

2012 Form 10-K Financial Statement

#000149028113000008 Filed on February 27, 2013

Income Statement

Concept	2012	2011 Q4	2011 Q3
Revenue	$2.334B	$492.2M	$430.2M
YoY Change	44.96%	185.81%	425.87%
Cost Of Revenue	$718.9M	$96.27M	$68.05M
YoY Change	177.71%	282.0%	396.69%
Gross Profit	$1.616B	$395.9M	$362.1M
YoY Change	19.53%	169.32%	431.74%
Gross Profit Margin	69.2%	80.44%	84.18%
Selling, General & Admin	$1.179B	$410.6M	$196.8M
YoY Change	43.61%	29.2%	105.64%
% of Gross Profit	72.98%	103.71%	54.35%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$35.89M	$9.300M	$7.100M
YoY Change	11.97%	52.46%	2.9%
% of Gross Profit	2.22%	2.35%	1.96%
Operating Expenses	$1.517B	$410.6M	$362.4M
YoY Change	-4.3%	29.16%	279.03%
Operating Profit	$98.70M	-$14.97M	-$239.0K
YoY Change	-142.29%	-91.24%	-99.13%
Interest Expense	$0.00	-$10.50M	-$2.900M
YoY Change
% of Operating Profit	0.0%
Other Income/Expense, Net	$3.238M		$8.269M
YoY Change	-45.79%		313.45%
Pretax Income	$94.94M	-$25.50M	-$3.181M
YoY Change	-137.37%	-92.45%	-94.1%
Income Tax	$146.0M	$34.20M	$11.24M
% Of Pretax Income	153.75%
Net Earnings	-$54.77M	-$64.95M	-$10.57M
YoY Change	-80.4%	-79.26%	-78.42%
Net Earnings / Revenue	-2.35%	-13.2%	-2.46%
Basic Earnings Per Share	-$0.10	-$0.12	-$0.18
Diluted Earnings Per Share	-$0.10	-$0.12	-$0.18
COMMON SHARES
Basic Shares Outstanding	650.2M shares	528.4M shares	307.6M shares
Diluted Shares Outstanding	650.2M shares	528.4M shares	307.6M shares

Balance Sheet

Concept	2012	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.209B	$1.123B	$243.9M
YoY Change	7.69%	845.2%
Cash & Equivalents	$1.209B	$1.240B	$243.9M
Short-Term Investments
Other Short-Term Assets	$181.8M	$91.60M	$111.9M
YoY Change	115.66%	626.98%
Inventory		$6.070M
Prepaid Expenses		$13.67M
Receivables	$96.70M	$108.7M	$109.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.488B	$1.323B	$465.6M
YoY Change	12.43%	761067.06%
LONG-TERM ASSETS
Property, Plant & Equipment	$121.1M	$51.80M	$41.40M
YoY Change	133.78%	314029.78%
Goodwill		$166.9M
YoY Change		26.41%
Intangibles		$45.67M
YoY Change		111897.55%
Long-Term Investments	$84.20M	$50.60M	$45.20M
YoY Change	66.4%
Other Assets	$89.10M	$90.07M	$24.10M
YoY Change	-34.58%	2328519.44%
Total Long-Term Assets	$543.7M	$451.1M	$330.0M
YoY Change	20.5%	217096.16%
TOTAL ASSETS
Total Short-Term Assets	$1.488B	$1.323B	$465.6M
Total Long-Term Assets	$543.7M	$451.1M	$330.0M
Total Assets	$2.032B	$1.774B	$795.6M
YoY Change	14.48%	464945.99%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$59.90M	$40.92M	$40.60M
YoY Change	46.45%	71008.56%
Accrued Expenses	$918.2M	$212.0M	$622.1M
YoY Change	25.32%	215523.0%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.168B	$995.2M	$766.7M
YoY Change	17.4%	268558.47%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$100.1M	$70.77M	$39.70M
YoY Change	41.38%	6958208.75%
Total Long-Term Liabilities	$100.1M	$10.92M	$39.70M
YoY Change	41.38%	1073842.97%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.168B	$995.2M	$766.7M
Total Long-Term Liabilities	$100.1M	$10.92M	$39.70M
Total Liabilities	$1.287B	$1.073B	$810.3M
YoY Change	20.1%	288405.54%
SHAREHOLDERS EQUITY
Retained Earnings		-$698.7M
YoY Change		166469.08%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$0.00
YoY Change		-100.0%
Treasury Stock Shares		0.000 shares
Shareholders Equity	$744.0M	$702.5M	-$14.70M
YoY Change
Total Liabilities & Shareholders Equity	$2.032B	$1.774B	$795.6M
YoY Change	14.48%	464945.99%

Cashflow Statement

Concept	2012	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	-$54.77M	-$64.95M	-$10.57M
YoY Change	-80.4%	-79.26%	-78.42%
Depreciation, Depletion And Amortization	$35.89M	$9.300M	$7.100M
YoY Change	11.97%	52.46%	2.9%
Cash From Operating Activities	$266.8M	$169.0M	$64.40M
YoY Change	-8.13%	225.63%	84.0%
INVESTING ACTIVITIES
Capital Expenditures	$95.84M	-$13.40M	-$23.40M
YoY Change	118.75%	52.27%	244.12%
Acquisitions	$46.89M
YoY Change	225.63%
Other Investing Activities	-$98.50M	-$21.50M	-$19.60M
YoY Change		616.67%	-392.54%
Cash From Investing Activities	-$195.0M	-$34.90M	-$43.00M
YoY Change	32.25%	195.76%	42900.0%
FINANCING ACTIVITIES
Cash Dividend Paid	$0.00
YoY Change
Common Stock Issuance & Retirement, Net	$0.00
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$12.10M	746.9M	8.600M
YoY Change	-98.61%	7151.46%	-57.21%
NET CHANGE
Cash From Operating Activities	$266.8M	169.0M	64.40M
Cash From Investing Activities	-$195.0M	-34.90M	-43.00M
Cash From Financing Activities	$12.10M	746.9M	8.600M
Net Change In Cash	$83.95M	881.0M	30.00M
YoY Change	-91.69%	1648.02%	-45.45%
FREE CASH FLOW
Cash From Operating Activities	$266.8M	$169.0M	$64.40M
Capital Expenditures	$95.84M	-$13.40M	-$23.40M
Free Cash Flow	$171.0M	$182.4M	$87.80M
YoY Change	-30.67%	200.49%	110.05%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	40918000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	59865000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	96713000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	108747000	USD
CY2011Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	70861000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	33887000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	77553000	USD
CY2011Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	55127000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	212007000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	246924000	USD
CY2012Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	11237000	USD
CY2011Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	33472000	USD
CY2011Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	18656000	USD
CY2012Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	16938000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	46236000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14627000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	53000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	12928000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	12393000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	12928000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	12446000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1388253000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1485006000	USD
CY2012	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	95836000	USD
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	43811000	USD
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	14681000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	200000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19900000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11000000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	19300000	USD
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	266685648	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	29902315	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	38261219	shares
CY2012Q4	us-gaap	Assets Assets	2031474000	USD
CY2011Q4	us-gaap	Assets Assets	1774476000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1487786000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	1323327000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	0	USD
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	3100000	USD
CY2012Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3087000	USD
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	100000	USD
CY2011Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	-17755000	USD
CY2012Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	-3400000	USD
CY2012Q4	us-gaap	Business Acquisition Contingent Consideration Potential Cash Payment BusinessAcquisitionContingentConsiderationPotentialCashPayment	14700000	USD
CY2012	us-gaap	Business Acquisition Contingent Consideration Shares Issuable BusinessAcquisitionContingentConsiderationSharesIssuable	100000	shares
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	18313000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	16800000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	49013000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Equity Interests Issued And Issuable BusinessAcquisitionCostOfAcquiredEntityEquityInterestsIssuedAndIssuable	11067000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Equity Interests Issued And Issuable BusinessAcquisitionCostOfAcquiredEntityEquityInterestsIssuedAndIssuable	18000000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Liabilities Incurred BusinessAcquisitionCostOfAcquiredEntityLiabilitiesIncurred	2485000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	47728000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	38984000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	54898000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndCashEquivalents	2100000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndCashEquivalents	3900000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Cash And Cash Equivalents BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndCashEquivalents	14100000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Deferred Tax Liabilities Noncurrent BusinessAcquisitionPurchasePriceAllocationDeferredTaxLiabilitiesNoncurrent	2584000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Deferred Tax Liabilities Noncurrent BusinessAcquisitionPurchasePriceAllocationDeferredTaxLiabilitiesNoncurrent	2207000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	36539000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	21464000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	39170000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Intangible Assets Other Than Goodwill BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsOtherThanGoodwill	370000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Intangible Assets Other Than Goodwill BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsOtherThanGoodwill	110000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	132000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	266000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	165000	USD
CY2011Q4	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	-593000	USD
CY2010Q4	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	-4200000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	897000	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-4537000	USD
CY2010	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	203183000	USD
CY2011Q4	us-gaap	Business Combination Consideration Transferred BusinessCombinationConsiderationTransferred	47728000	USD
CY2010Q4	us-gaap	Business Combination Consideration Transferred BusinessCombinationConsiderationTransferred	39000000	USD
CY2012Q4	us-gaap	Business Combination Consideration Transferred BusinessCombinationConsiderationTransferred	54898000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1891000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1972000	USD
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2379000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	365000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	758000	USD
CY2012Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	1100000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	1169000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	390000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	0	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	389000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	390000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	-46000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	1123000	USD
CY2011	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	200000	USD
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	3400000	USD
CY2012Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	30100000	USD
CY2011Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	4600000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1122935000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1209289000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12313000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	118833000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	86354000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1004102000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	106520000	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-276374000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-379765000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-55255000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4702000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-18335000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-23746000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-50553000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-403511000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-294709000	USD
CY2012Q4	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	7200000	USD
CY2012Q1	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	2500000	USD
CY2011Q4	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	6800000	USD
CY2011Q3	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	8300000	USD
CY2012Q4	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	400000	USD
CY2012Q2	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	6600000	USD
CY2011Q2	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Purchase Of Interest By Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent	5600000	USD
CY2012Q4	us-gaap	Contractual Obligation ContractualObligation	28275000	USD
CY2012Q4	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	0	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Fifth Year ContractualObligationDueInFifthYear	0	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Fourth Year ContractualObligationDueInFourthYear	360000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	21131000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	6049000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	735000	USD
CY2012Q4	us-gaap	Cost Method Investments Aggregate Carrying Amount CostMethodInvestmentsAggregateCarryingAmount	1900000	USD
CY2012Q4	us-gaap	Cost Method Investments Fair Value Disclosure CostMethodInvestmentsFairValueDisclosure	2300000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	421201000	USD
CY2010	us-gaap	Cost Of Goods Sold CostOfGoodsSold	0	USD
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	15090000	USD
CY2012	us-gaap	Cost Of Revenue CostOfRevenue	718940000	USD
CY2011	us-gaap	Cost Of Revenue CostOfRevenue	258879000	USD
CY2010	us-gaap	Cost Of Revenue CostOfRevenue	42896000	USD
CY2012Q2	us-gaap	Cost Of Revenue CostOfRevenue	135184000	USD
CY2012Q4	us-gaap	Cost Of Revenue CostOfRevenue	282472000	USD
CY2011Q2	us-gaap	Cost Of Revenue CostOfRevenue	54803000	USD
CY2012Q1	us-gaap	Cost Of Revenue CostOfRevenue	119498000	USD
CY2012Q3	us-gaap	Cost Of Revenue CostOfRevenue	181786000	USD
CY2011Q4	us-gaap	Cost Of Revenue CostOfRevenue	96265000	USD
CY2011Q3	us-gaap	Cost Of Revenue CostOfRevenue	68046000	USD
CY2011Q1	us-gaap	Cost Of Revenue CostOfRevenue	39765000	USD
CY2010	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	0	USD
CY2011	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	0	USD
CY2012	us-gaap	Costmethod Investments Other Than Temporary Impairment CostmethodInvestmentsOtherThanTemporaryImpairment	50553000	USD
CY2011Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	67452000	USD
CY2012Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	69209000	USD
CY2012Q1	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1700000	USD
CY2011Q2	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1300000	USD
CY2012Q4	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	6300000	USD
CY2011Q3	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	6700000	USD
CY2012Q4	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2500000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7651000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	32203000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7349000	USD
CY2012Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	9162000	USD
CY2011Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	4717000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	2633000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	25780000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	31211000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	19243000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	46104000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	29916000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	499500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	17800000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	36000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	128200000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	159200000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	53700000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	76841000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	20860000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	7428000	USD
CY2010	us-gaap	Depreciation Depreciation	1900000	USD
CY2012	us-gaap	Depreciation Depreciation	35900000	USD
CY2011	us-gaap	Depreciation Depreciation	12800000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32055000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	12952000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	55801000	USD
CY2010	us-gaap	Dividends Preferred Stock DividendsPreferredStock	1362000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	0	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	0	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.03
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.33
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.48
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.03
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.33
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.04
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.48
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2404000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-6117000	USD
CY2010	grpn	Other Current Liabilities Related To Purchases Of Additional Interests In Consolidated Subsidiaries OtherCurrentLiabilitiesRelatedToPurchasesOfAdditionalInterestsInConsolidatedSubsidiaries	0	USD
CY2012	grpn	Other Current Liabilities Related To Purchases Of Additional Interests In Consolidated Subsidiaries OtherCurrentLiabilitiesRelatedToPurchasesOfAdditionalInterestsInConsolidatedSubsidiaries	1959000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1069000	USD
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.537
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.172
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.016
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.120
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.362
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.308
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.295
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.036
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.017
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.036
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	-0.002
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.048
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.154
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.048
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.180
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.018
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.020
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.042
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.006
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	36404000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	61557000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1500000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	9700000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	221400000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y6M30D
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1734000	USD
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	50604000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	32000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	27023000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	10178000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	27023000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	32000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	10178000	USD
CY2012	us-gaap	Fair Value Inputs Discount Rate FairValueInputsDiscountRate	0.3
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	-1988000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	1988000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-4537000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	203183000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	897000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	63180000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	17755000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	3400000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchasesSalesIssuancesSettlements	-4978000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-266363000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-4936000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	11230000	USD
CY2009Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	7601000	USD
CY2012	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P5Y
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	29009000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	49756000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	20384000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	11000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1689000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7062000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	13451000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	74676000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	92353000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	45667000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	42597000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	500000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1800000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1400000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	36539000	USD
CY2012	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	56032000	USD
CY2010	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2011	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2011Q4	us-gaap	Goodwill Goodwill	166903000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	206684000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	132038000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	39170000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2011	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	-1674000	USD
CY2012	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	611000	USD
CY2012	us-gaap	Gross Profit GrossProfit	1615532000	USD
CY2011	us-gaap	Gross Profit GrossProfit	1351551000	USD
CY2010	us-gaap	Gross Profit GrossProfit	270045000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	433151000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	362115000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	255758000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	395899000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	386766000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	439785000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	337779000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	355830000	USD
CY2011Q4	us-gaap	Impact Of Restatement On Earnings Per Share Basic ImpactOfRestatementOnEarningsPerShareBasic	0.04
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1200000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	94942000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-420060000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-254065000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-9925000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-26652000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	2300000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	145973000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43697000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6674000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	1635000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	140000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	126987000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-20997000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	18711000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	50835000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	34905000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-10534000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	70376000	USD
CY2012	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	47742000	USD
CY2010	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	94592000	USD
CY2011	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	189127000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-35604000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1856000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5711000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2467000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	70859000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	36292000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	92000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	12519000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	0	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	4372000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	42597000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45667000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-240000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	110000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1702000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	6070000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	39733000	USD
CY2011Q4	us-gaap	Investments Investments	50604000	USD
CY2012Q4	us-gaap	Investments Investments	84209000	USD
CY2011Q1	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	4000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	25600000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3700000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	43100000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	1073356000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	1289373000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1774476000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2031474000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	995162000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1168441000	USD
CY2011Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	10922000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	13357000	USD
CY2010	us-gaap	Marketing Expense MarketingExpense	290569000	USD
CY2012	us-gaap	Marketing Expense MarketingExpense	336854000	USD
CY2011	us-gaap	Marketing Expense MarketingExpense	768472000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	-3074000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	-1939000	USD
CY2012	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-12604000	USD
CY2011	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-59740000	USD
CY2010	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-12425000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	30445000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	12095000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	867205000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-194979000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-147433000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11879000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	290447000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	86885000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	266834000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	-389640000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-54773000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	-279427000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	-101240000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	-102668000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	-1646000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	-4473000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-80983000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	32329000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-10573000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-64946000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-23746000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3742000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-18335000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-373494000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-67377000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-456320000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	1122000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
CY2012	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4
CY2012	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2
CY2010	us-gaap	Operating Expenses OperatingExpenses	690389000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	1584937000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	1516831000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	-233386000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	98701000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	-420344000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-12861000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-14972000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-239000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	25438000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-117148000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	46485000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	39639000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-101027000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	114139000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	30598000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	11138000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	14825000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	16581000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	22713000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	18284000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	19879000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	29006000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	59210000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	90071000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	425000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	9875000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3053000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	478000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3053000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9875000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	53000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	20625000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	21252000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	144673000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	136647000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	70766000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	100072000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2010	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	106000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5973000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	284000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6166000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	503173000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	353768000	USD
CY2010Q4	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	438300000	USD
CY2010Q2	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	119900000	USD
CY2011Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	371500000	USD
CY2010	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	55003000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	35003000	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	1299000	USD
CY2010	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2012	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	12996000	USD
CY2011	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3770000	USD
CY2010	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
CY2011	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	42663000	USD
CY2012	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	14130000	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	3000000	USD
CY2011	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	0	USD
CY2012	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	2233000	USD
CY2010	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	0	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	46890000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-3816000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	14400000	USD
CY2010	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	922000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	14517000	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	600000	USD
CY2012	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	37523000	USD
CY2010	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
CY2011	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	32042000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	14681000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	95836000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	43811000	USD
CY2010	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	5525000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	4312000	USD
CY2012	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2010	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	52893000	USD
CY2011	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	34327000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	150573000	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	72402000	USD
CY2011Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	13666000	USD
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	20964000	USD
CY2012	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain reclassifications have been made to the consolidated financial statements of prior years and the accompanying notes to conform to the current year presentation, including the separate presentation of third party and other revenue and cost of revenue, direct revenue and cost of revenue, and gross profit in the consolidated statements of operations. Prior year conforming changes also include presenting "Net loss," rather than "Net loss attributable to Groupon, Inc.," as the starting point in the consolidated statements of comprehensive loss.</font></div></div>
CY2011Q4	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	744200000	USD
CY2012	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2010	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	51000	USD
CY2010Q4	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	449700000	USD
CY2011Q1	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	492500000	USD
CY2010Q2	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	134900000	USD
CY2012	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
CY2010	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	584658000	USD
CY2011	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1266392000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4700000	USD
CY2012	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2010	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	5035000	USD
CY2011	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	0	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	195000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3008000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9313000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	-51031000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	-297762000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	-413386000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	66427000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	167308000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	121072000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	51800000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	100000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	200000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	600000	USD
CY2012Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	0	USD
CY2011Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1653000	USD
CY2012	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0	USD
CY2010	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0	USD
CY2011	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	14358000	USD
CY2011Q4	us-gaap	Restatement Of Prior Year Income Net Of Tax RestatementOfPriorYearIncomeNetOfTax	22600000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	12128000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	16507000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	700000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	700000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-698704000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-753477000	USD
CY2012Q3	us-gaap	Revenue Recognition Gift Cards Breakage RevenueRecognitionGiftCardsBreakage	18500000	USD
CY2012	us-gaap	Revenue Recognition Incentives RevenueRecognitionIncentives	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Subscriber Credits </font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company issues credits to its subscribers that can be applied against future purchases through its marketplace for certain qualifying acts, such as referring new subscribers, and also to satisfy refund requests. The Company has recorded its subscriber credit obligations within “Accrued expenses” on the consolidated balance sheets (See Note 9 </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">"Supplemental Consolidated Balance Sheet Information"</font><font style="font-family:inherit;font-size:10pt;">). Subscriber credit obligations incurred for new subscriber referrals or other qualifying acts expensed as incurred and are classified within “Marketing” on the consolidated statements of operations. Subscriber credits issued to satisfy refund requests are applied as a reduction to the refunds reserve.</font></div></div>
CY2012	us-gaap	Revenue Recognition Sales Returns RevenueRecognitionSalesReturns	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:justify;padding-left:72px;text-indent:-24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Refunds </font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company estimates future refunds utilizing a statistical model that incorporates the following data inputs and factors: historical refund experience developed from millions of deals featured on the Company's website, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in Company practices in response to refund experience or economic trends that might impact customer demand. The portion of customer refunds for which the merchant's share is not recoverable on third party revenue deals is estimated based on the refunds that are expected to be issued after expiration of the related vouchers, the refunds that are expected to be issued due to the merchant bankruptcy or poor customer experience, and whether the payment terms of the related merchant contracts are structured using a redemption payment model or a fixed payment model.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In early 2012, actual refund activity for deals featured late in 201l was demonstrating a consistent trend that was deviating from the modeled refund behavior, due in part to a shift in fourth quarter deal mix and higher price point offers. Accordingly, the Company updated its refund model to better capture variations in trends in its business. By continually refining the refund model to reflect such data inputs as discussed above, the Company believes its model enables it to track and anticipate refund behavior.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company accrues costs associated with refunds within "Accrued expenses" on the consolidated balance sheets. The cost of refunds for third party revenue where the amounts payable to the merchant are recoverable and for all direct revenue is presented on the consolidated statements of operations as a reduction to revenue. The cost of refunds for third party revenue for which the merchant's share is not recoverable is presented as a cost of revenue.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company assesses the trends that could affect its estimates on an ongoing basis and makes adjustments to the refund reserve calculations if it appears that changes in circumstances, including changes to the Company's refund policies, may cause future refunds to differ from its original estimates. If actual results are not consistent with the estimates or assumptions stated above, the Company may need to change its future estimates, and the effects could be material to the consolidated financial statements.</font></div></div>
CY2012	us-gaap	Revenues Revenues	2334472000	USD
CY2010	us-gaap	Revenues Revenues	312941000	USD
CY2011	us-gaap	Revenues Revenues	1610430000	USD
CY2011Q2	us-gaap	Revenues Revenues	392582000	USD
CY2011Q1	us-gaap	Revenues Revenues	295523000	USD
CY2012Q2	us-gaap	Revenues Revenues	568335000	USD
CY2011Q3	us-gaap	Revenues Revenues	430161000	USD
CY2012Q3	us-gaap	Revenues Revenues	568552000	USD
CY2012Q4	us-gaap	Revenues Revenues	638302000	USD
CY2012Q1	us-gaap	Revenues Revenues	559283000	USD
CY2011Q4	us-gaap	Revenues Revenues	492164000	USD
CY2011Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	50554000	USD
CY2012Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	55728000	USD
CY2010	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	0	USD
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	454743000	USD
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	20826000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	7.16
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Total Share Based Liabilities Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTotalShareBasedLiabilitiesPaid	17000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.46
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.44
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	196637000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1179080000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	821002000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	93590000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	36168000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	104117000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0258
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0179
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	29051380	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	75200000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	56900000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5700000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.73
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.00
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y1M17D
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y5M20D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent	0.85
CY2012	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	0	shares
CY2013	us-gaap	Stock Issued During Period Shares Employee Stock Ownership Plan StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan	271402	shares
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	12400000	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	50200000	USD
CY2012	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	0	USD
CY2011	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	-4916000	USD
CY2010	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	100000	USD
CY2010	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	0	USD
CY2012	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2010	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	0	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	-4916000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	744040000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	702541000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	699467000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	742101000	USD
CY2011	us-gaap	Stockholders Equity Other StockholdersEquityOther	-4900000	USD
CY2012Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	326000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	85481000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55127000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-790000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	55127000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29465000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation	1077000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	602000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	39300000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3200000	USD
CY2011Q4	grpn	Business Acquisition Purchase Price Allocation Net Working Capital BusinessAcquisitionPurchasePriceAllocationNetWorkingCapital	3734000	USD
CY2010Q4	grpn	Business Acquisition Purchase Price Allocation Net Working Capital BusinessAcquisitionPurchasePriceAllocationNetWorkingCapital	11544000	USD
CY2012Q4	grpn	Business Acquisition Purchase Price Allocation Net Working Capital BusinessAcquisitionPurchasePriceAllocationNetWorkingCapital	1750000	USD
CY2012	grpn	Capital Lease Obligations Term CapitalLeaseObligationsTerm	P3Y
CY2012	grpn	Classes Of Common Stock Number ClassesOfCommonStockNumber	3
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	653223610	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	644097375	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	307605060	shares
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	528421712	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	342698772	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	362261324	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	655678123	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	303414676	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	663122709	shares
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of 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 on the consolidated financial statements and accompanying notes. Estimates are utilized for, but not limited to, stock‑based compensation, income taxes, valuation of acquired goodwill and intangible assets, investments in equity interests, customer refunds, contingent liabilities and the useful lives of property, equipment and software and intangible assets. Actual results could differ materially from those estimates.</font></div></div>
CY2011Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	1276000	USD
CY2012Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	16439000	USD
CY2011Q2	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.50
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	650214119	shares
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	307849412	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	362261324	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	342698772	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	650214119	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	307849412	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	307605060	shares
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	644097375	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	653223610	shares
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	655678123	shares
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	528421712	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	303414676	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	647149537	shares
CY2012Q4	grpn	Accrued Merchant Payable AccruedMerchantPayable	671305000	USD
CY2011Q4	grpn	Accrued Merchant Payable AccruedMerchantPayable	520723000	USD
CY2012	grpn	Amortization Period Of Leasehold Improvements AmortizationPeriodOfLeaseholdImprovements	P5Y
CY2011Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Developed Technology BusinessAcquisitionPurchasePriceAllocationAmortizableDevelopedTechnology	3547000	USD
CY2010Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Developed Technology BusinessAcquisitionPurchasePriceAllocationAmortizableDevelopedTechnology	920000	USD
CY2012Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Developed Technology BusinessAcquisitionPurchasePriceAllocationAmortizableDevelopedTechnology	14350000	USD
CY2010Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Merchant Relationships BusinessAcquisitionPurchasePriceAllocationAmortizableMerchantRelationships	290000	USD
CY2012Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Merchant Relationships BusinessAcquisitionPurchasePriceAllocationAmortizableMerchantRelationships	1500000	USD
CY2011Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Subscriber Relationships BusinessAcquisitionPurchasePriceAllocationAmortizableSubscriberRelationships	5990000	USD
CY2010Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Subscriber Relationships BusinessAcquisitionPurchasePriceAllocationAmortizableSubscriberRelationships	4390000	USD
CY2012Q4	grpn	Business Acquisition Purchase Price Allocation Amortizable Subscriber Relationships BusinessAcquisitionPurchasePriceAllocationAmortizableSubscriberRelationships	170000	USD
CY2011	grpn	Contingent Consideration In Connection With Acquisitions ContingentConsiderationInConnectionWithAcquisitions	17755000	USD
CY2010	grpn	Contingent Consideration In Connection With Acquisitions ContingentConsiderationInConnectionWithAcquisitions	63180000	USD
CY2012	grpn	Contingent Consideration In Connection With Acquisitions ContingentConsiderationInConnectionWithAcquisitions	3400000	USD
CY2012	grpn	Contribution Of Investment In E Commerce Transaction ContributionOfInvestmentInECommerceTransaction	47042000	USD
CY2011	grpn	Contribution Of Investment In E Commerce Transaction ContributionOfInvestmentInECommerceTransaction	0	USD
CY2010	grpn	Contribution Of Investment In E Commerce Transaction ContributionOfInvestmentInECommerceTransaction	0	USD
CY2010	grpn	Cost Of Revenue Third Party And Other CostOfRevenueThirdPartyAndOther	42896000	USD
CY2011	grpn	Cost Of Revenue Third Party And Other CostOfRevenueThirdPartyAndOther	243789000	USD
CY2012	grpn	Cost Of Revenue Third Party And Other CostOfRevenueThirdPartyAndOther	297739000	USD
CY2012Q4	grpn	Current Portion Of Unamortized Tax Effects On Intercompany Transactions CurrentPortionOfUnamortizedTaxEffectsOnIntercompanyTransactions	37589000	USD
CY2011Q4	grpn	Current Portion Of Unamortized Tax Effects On Intercompany Transactions CurrentPortionOfUnamortizedTaxEffectsOnIntercompanyTransactions	33271000	USD
CY2012Q1	grpn	Deferred Compensation Expense Service Period Number Of Years DeferredCompensationExpenseServicePeriodNumberOfYears	P2Y0M0D
CY2011Q2	grpn	Deferred Compensation Expense Service Period Number Of Years DeferredCompensationExpenseServicePeriodNumberOfYears	P2Y
CY2011Q3	grpn	Deferred Compensation Expense Service Period Number Of Years DeferredCompensationExpenseServicePeriodNumberOfYears	P2Y
CY2012Q4	grpn	Deferred Compensation Expense Service Period Number Of Years DeferredCompensationExpenseServicePeriodNumberOfYears	P1Y
CY2012Q4	grpn	Deferred Compensation Expense Service Period Number Of Years DeferredCompensationExpenseServicePeriodNumberOfYears	P1Y
CY2011	grpn	Effective Income Tax Rate Reconciliation Amortization Of Taxes On Intercompany Sales EffectiveIncomeTaxRateReconciliationAmortizationOfTaxesOnIntercompanySales	-0.029
CY2012	grpn	Effective Income Tax Rate Reconciliation Amortization Of Taxes On Intercompany Sales EffectiveIncomeTaxRateReconciliationAmortizationOfTaxesOnIntercompanySales	0.327
CY2010	grpn	Effective Income Tax Rate Reconciliation Amortization Of Taxes On Intercompany Sales EffectiveIncomeTaxRateReconciliationAmortizationOfTaxesOnIntercompanySales	0.000
CY2010	grpn	Effective Income Tax Rate Reconciliation Effect Of Foreign And State Changes On Deferred Items EffectiveIncomeTaxRateReconciliationEffectOfForeignAndStateChangesOnDeferredItems	-0.001
CY2011	grpn	Effective Income Tax Rate Reconciliation Effect Of Foreign And State Changes On Deferred Items EffectiveIncomeTaxRateReconciliationEffectOfForeignAndStateChangesOnDeferredItems	-0.023
CY2012	grpn	Effective Income Tax Rate Reconciliation Effect Of Foreign And State Changes On Deferred Items EffectiveIncomeTaxRateReconciliationEffectOfForeignAndStateChangesOnDeferredItems	-0.005
CY2012	grpn	Employee Stock Purchase Plan Max Purchases Amount EmployeeStockPurchasePlanMaxPurchasesAmount	25000	USD
CY2012	grpn	Employee Stock Purchase Plan Max Purchases Percent Of Employees Salary EmployeeStockPurchasePlanMaxPurchasesPercentOfEmployeesSalary	0.15
CY2012	grpn	Fair Value Inputs Discount Rate Initial FairValueInputsDiscountRateInitial	0.25
CY2010	grpn	Fair Value Measurement With Unobservable Inputs Unrealized Gain Loss FairValueMeasurementWithUnobservableInputsUnrealizedGainLoss	0	USD
CY2011	grpn	Fair Value Measurement With Unobservable Inputs Unrealized Gain Loss FairValueMeasurementWithUnobservableInputsUnrealizedGainLoss	-4537000	USD
CY2012	grpn	Fair Value Measurement With Unobservable Inputs Unrealized Gain Loss FairValueMeasurementWithUnobservableInputsUnrealizedGainLoss	211000	USD
CY2012Q4	grpn	Finite Lived Intangible Assets Amortization Expense Total FiniteLivedIntangibleAssetsAmortizationExpenseTotal	42597000	USD
CY2011	grpn	Foreign Exchange And Other Income ForeignExchangeAndOtherIncome	947000	USD
CY2012	grpn	Foreign Exchange And Other Income ForeignExchangeAndOtherIncome	-1015000	USD
CY2010	grpn	Foreign Exchange And Other Income ForeignExchangeAndOtherIncome	524000	USD
CY2011	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	380108000	USD
CY2012	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	149918000	USD
CY2010	grpn	Increase Decrease In Accrued Merchant Payables IncreaseDecreaseInAccruedMerchantPayables	149044000	USD
CY2012	grpn	Internal Use Software Useful Life InternalUseSoftwareUsefulLife	P2Y
CY2011Q4	grpn	Investments Cost And Equity Method InvestmentsCostAndEquityMethod	50604000	USD
CY2012Q4	grpn	Investments Cost And Equity Method InvestmentsCostAndEquityMethod	81122000	USD
CY2010	grpn	Issuance Of Common Stock In Connection With Acquisitions IssuanceOfCommonStockInConnectionWithAcquisitions	80200000	USD
CY2011	grpn	Issuance Of Common Stock In Connection With Acquisitions IssuanceOfCommonStockInConnectionWithAcquisitions	11067000	USD
CY2012	grpn	Issuance Of Common Stock In Connection With Acquisitions IssuanceOfCommonStockInConnectionWithAcquisitions	0	USD
CY2012	grpn	Issuance Of Non Voting Common Stock In Connection With Investments In Equity Interests IssuanceOfNonVotingCommonStockInConnectionWithInvestmentsInEquityInterests	0	USD
CY2011	grpn	Issuance Of Non Voting Common Stock In Connection With Investments In Equity Interests IssuanceOfNonVotingCommonStockInConnectionWithInvestmentsInEquityInterests	45218000	USD
CY2010	grpn	Issuance Of Non Voting Common Stock In Connection With Investments In Equity Interests IssuanceOfNonVotingCommonStockInConnectionWithInvestmentsInEquityInterests	0	USD
CY2012	grpn	Lease Range Maximum LeaseRangeMaximum	P6Y0M0D
CY2012	grpn	Lease Range Minimum LeaseRangeMinimum	P2Y0M0D
CY2011Q2	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2012Q4	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2011Q4	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2012Q2	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	2
CY2012Q1	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2011Q3	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2012Q4	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2011Q1	grpn	Number Of Majority Owned Subsidiaries NumberOfMajorityOwnedSubsidiaries	1
CY2011	grpn	Other Current Liabilities Related To Purchases Of Additional Interests In Consolidated Subsidiaries OtherCurrentLiabilitiesRelatedToPurchasesOfAdditionalInterestsInConsolidatedSubsidiaries	0	USD
CY2012	grpn	Percent Of Total Revenue Minimum For Disclosure PercentOfTotalRevenueMinimumForDisclosure	0.10
CY2012Q4	grpn	Percentage Of Assets Minimum For Disclosure PercentageOfAssetsMinimumForDisclosure	0.10
CY2012Q4	grpn	Percentage Of Property And Equipment Net Minimum For Disclosure PercentageOfPropertyAndEquipmentNetMinimumForDisclosure	0.10
CY2011Q4	grpn	Prepayment Of Inventory Purchases And Other PrepaymentOfInventoryPurchasesAndOther	5991000	USD
CY2012Q4	grpn	Prepayment Of Inventory Purchases And Other PrepaymentOfInventoryPurchasesAndOther	19341000	USD
CY2010Q4	grpn	Proceeds From Issuance Of Preferred Stock Gross ProceedsFromIssuanceOfPreferredStockGross	450000000	USD
CY2011Q1	grpn	Proceeds From Issuance Of Preferred Stock Gross ProceedsFromIssuanceOfPreferredStockGross	496000000	USD
CY2010Q2	grpn	Proceeds From Issuance Of Preferred Stock Gross ProceedsFromIssuanceOfPreferredStockGross	135000000	USD
CY2012	grpn	Renewal And Expansion Options Maximum RenewalAndExpansionOptionsMaximum	P4Y0M0D
CY2012	grpn	Renewal And Expansion Options Minimum RenewalAndExpansionOptionsMinimum	P3Y0M0D
CY2012Q4	grpn	Rent Escalation RentEscalation	0.02
CY2012Q4	grpn	Rent Escalations Maximum RentEscalationsMaximum	0.09
CY2011Q4	grpn	Restatement Of Prior Year Operating Income RestatementOfPriorYearOperatingIncome	30000000	USD
CY2011Q4	grpn	Restatement Of Prior Year Revenue RestatementOfPriorYearRevenue	14300000	USD
CY2011	grpn	Return Of Common Stock ReturnOfCommonStock	400000	shares
CY2010	grpn	Segment Cost Of Revenue And Operating Expenses SegmentCostOfRevenueAndOperatingExpenses	493934000	USD
CY2012	grpn	Segment Operating Loss Income SegmentOperatingLossIncome	203715000	USD
CY2010	grpn	Segment Operating Loss Income SegmentOperatingLossIncome	-180993000	USD
CY2011	grpn	Third Party And Other Revenue ThirdPartyAndOtherRevenue	1589604000	USD
CY2010	grpn	Third Party And Other Revenue ThirdPartyAndOtherRevenue	312941000	USD
CY2012	grpn	Third Party And Other Revenue ThirdPartyAndOtherRevenue	1879729000	USD
CY2012Q4	grpn	Unrecognized Tax Benefits Possible Decrease Next12 Months UnrecognizedTaxBenefitsPossibleDecreaseNext12Months	10200000	USD
CY2011	grpn	Segment Operating Loss Income SegmentOperatingLossIncome	-144333000	USD
CY2012	grpn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Expected To Vest Percent Vesting After One Year ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestPercentVestingAfterOneYear	0.25
CY2012	grpn	Segment Cost Of Revenue And Operating Expenses SegmentCostOfRevenueAndOperatingExpenses	2130757000	USD
CY2011	grpn	Segment Cost Of Revenue And Operating Expenses SegmentCostOfRevenueAndOperatingExpenses	1754763000	USD
CY2012	grpn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Percent Vesting After One Year ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestPercentVestingAfterOneYear	0.25
CY2012	grpn	Shares Issued To Settle Contingent Consideration SharesIssuedToSettleContingentConsideration	236000	USD
CY2010	grpn	Shares Issued To Settle Contingent Consideration SharesIssuedToSettleContingentConsideration	266128000	USD
CY2011	grpn	Shares Issued To Settle Contingent Consideration SharesIssuedToSettleContingentConsideration	0	USD
CY2011	grpn	Shares Issued To Settle Liability Classified Awards SharesIssuedToSettleLiabilityClassifiedAwards	0	USD
CY2010	grpn	Shares Issued To Settle Liability Classified Awards SharesIssuedToSettleLiabilityClassifiedAwards	0	USD
CY2012	grpn	Shares Issued To Settle Liability Classified Awards SharesIssuedToSettleLiabilityClassifiedAwards	2267000	USD
CY2012Q1	grpn	Stock Based Compensation Awards Settlement StockBasedCompensationAwardsSettlement	2500000	USD
CY2011	grpn	Stock Issued In Exchange For Additional Interests In Consolidates Subsidiaries StockIssuedInExchangeForAdditionalInterestsInConsolidatesSubsidiaries	10400000	USD
CY2012	grpn	Stock Issued In Exchange For Additional Interests In Consolidates Subsidiaries StockIssuedInExchangeForAdditionalInterestsInConsolidatesSubsidiaries	527000	USD
CY2010	grpn	Stock Issued In Exchange For Additional Interests In Consolidates Subsidiaries StockIssuedInExchangeForAdditionalInterestsInConsolidatesSubsidiaries	0	USD
CY2012Q4	grpn	Subscriber Rewards And Credits SubscriberRewardsAndCredits	58977000	USD
CY2011Q4	grpn	Subscriber Rewards And Credits SubscriberRewardsAndCredits	36144000	USD
CY2011Q4	grpn	Tangible Property And Equipment TangiblePropertyAndEquipment	41415000	USD
CY2012Q4	grpn	Tangible Property And Equipment TangiblePropertyAndEquipment	82039000	USD
CY2011	grpn	Weighted Average Remaining Useful Life In Years WeightedAverageRemainingUsefulLifeInYears	P3Y8M13D
CY2012	grpn	Weighted Average Remaining Useful Life In Years WeightedAverageRemainingUsefulLifeInYears	P2Y4M12D
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001490281
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	3699527694	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	Groupon, Inc.
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001490281-13-000008-index-headers.html	Edgar Link	pending
0001490281-13-000008-index.html	Edgar Link	pending
0001490281-13-000008.txt	Edgar Link	pending
0001490281-13-000008-xbrl.zip	Edgar Link	pending
consentofindependentregist.htm	Edgar Link	pending
directorscompensationplanf.htm	Edgar Link	pending
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$GRPN
Groupon, Inc. Stock $grpn

2012 Form 10-K Financial Statement

#000149028113000008 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GRPN Groupon, Inc. Stock $grpn

2012 Form 10-K Financial Statement

#000149028113000008 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GRPN
Groupon, Inc. Stock $grpn