Groupon (GRPN) 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Cover Document

Cover Document - shares	6 Months Ended
	Jun. 30, 2015	Aug. 05, 2015
Entity Registrant Name	Groupon, Inc.
Entity Central Index Key	1,490,281
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Common Class A [Member]
Common Stock, Shares, Outstanding		651,931,498
Common Class B [Member]
Common Stock, Shares, Outstanding		2,399,976

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,110,148	$ 1,016,634
Accounts receivable, net	95,311	90,597
Deferred income taxes	18,462	16,271
Prepaid expenses and other current assets	173,446	192,382
Current assets held for sale	0	85,445
Total current assets	1,397,367	1,401,329
Property, equipment and software, net	173,426	176,004
Goodwill	231,461	236,756
Intangible assets, net	23,846	30,609
Investments	150,018	24,298
Deferred income taxes, non-current	24,219	41,323
Other non-current assets	20,489	16,173
Non-current assets held for sale	0	301,105
Total Assets	2,020,826	2,227,597
Current liabilities:
Accounts payable	16,273	13,822
Accrued merchant and supplier payables	699,765	772,156
Accrued expenses	220,048	214,260
Deferred income taxes	29,815	31,998
Other current liabilities	123,092	127,121
Current liabilities held for sale	0	166,239
Total current liabilities	1,088,993	1,325,596
Deferred income taxes, non-current	9,083	773
Other non-current liabilities	130,004	129,531
Non-current liabilities held for sale	0	6,753
Total Liabilities	$ 1,228,080	$ 1,462,653
Commitments and contingencies (see Note 7)
Stockholders' Equity
Additional paid-in capital	$ 1,902,892	$ 1,847,420
Treasury stock, at cost, 48,991,548 shares at June 30, 2015 and 27,239,104 shares at December 31, 2014	(339,626)	(198,467)
Accumulated deficit	(827,149)	(921,960)
Accumulated other comprehensive income	55,688	35,763
Total Groupon, Inc. Stockholders' Equity	791,876	762,826
Noncontrolling interests	870	2,118
Total Equity	792,746	764,944
Total Liabilities and Equity	2,020,826	2,227,597
Common Class A [Member]
Stockholders' Equity
Common Stock, Value, Issued	71	70
Common Class B [Member]
Stockholders' Equity
Common Stock, Value, Issued	0	0
Common Stock [Member]
Stockholders' Equity
Common Stock, Value, Issued	$ 0	$ 0

Consolidated Balance Sheets Par

Consolidated Balance Sheets Parenthetical - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investments at Fair Value	$ 135,400	$ 7,400
Treasury Stock [Member]
Treasury Stock, Shares	48,991,548	27,239,104
Common Stock [Member]
Common Stock, Par Value	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	2,010,000,000	2,010,000,000
Common Stock, Shares, Issued	0	0
Common Stock, Shares, Outstanding	0	0
Common Class A [Member]
Common Stock, Par Value	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	2,000,000,000	2,000,000,000
Common Stock, Shares, Issued	709,198,287	699,008,084
Common Stock, Shares, Outstanding	660,206,739	671,768,980
Common Class B [Member]
Common Stock, Par Value	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	10,000,000	10,000,000
Common Stock, Shares, Issued	2,399,976	2,399,976
Common Stock, Shares, Outstanding	2,399,976	2,399,976

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue:
Third party and other	$ 340,846	$ 372,504	$ 700,967	$ 770,206
Direct	397,549	343,707	787,784	674,420
Total revenue	738,395	716,211	1,488,751	1,444,626
Cost of revenue:
Third party and other	47,545	48,757	99,242	102,559
Direct	353,843	301,044	705,096	610,145
Total cost of revenue	401,388	349,801	804,338	712,704
Gross profit	337,007	366,410	684,413	731,922
Operating expenses:
Marketing	57,007	57,699	109,540	126,884
Selling, general and administrative	288,721	305,738	578,568	606,644
Acquisition-related (benefit) expense, net	505	597	236	2,382
Total operating expenses	346,233	364,034	688,344	735,910
Income (loss) from operations	(9,226)	2,376	(3,931)	(3,988)
Other expense, net	2,941	(1,023)	(16,986)	(1,863)
Loss from continuing operations before provision for income taxes	(6,285)	1,353	(20,917)	(5,851)
Provision for income taxes	8,982	12,045	11,089	26,615
Loss from continuing operations	(15,267)	(10,692)	(32,006)	(32,466)
Income (loss) from discontinued operations, net of tax	127,179	(10,230)	133,463	(23,819)
Net loss	111,912	(20,922)	101,457	(56,285)
Net income attributable to noncontrolling interests	(2,828)	(1,953)	(6,646)	(4,385)
Net loss attributable to Groupon, Inc.	$ 109,084	$ (22,875)	$ 94,811	$ (60,670)
Basic net income (loss) per share
Continuing operations	$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations	0.19	(0.01)	0.20	(0.04)
Basic, net (loss) earnings per share	0.16	(0.03)	0.14	(0.09)
Diluted net income (loss) per share
Continuing operations	(0.03)	(0.02)	(0.06)	(0.05)
Discontinued operations	0.19	(0.01)	0.20	(0.04)
Diluted, net (loss) earnings per share	$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Weighted average number of shares outstanding, basic and diluted [Abstract]
Basic, weighted average number of shares outstanding	671,630,169	675,538,392	674,006,553	678,958,541
Diluted, weighted average number of shares outstanding	671,630,169	675,538,392	674,006,553	678,958,541

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net loss from continuing operations	$ (15,267)	$ (10,692)	$ (32,006)	$ (32,466)
Other comprehensive (loss) income, net of tax:
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	27	0	53	0
Comprehensive loss	123,384	(8,311)	121,382	(48,587)
Net loss from discontinued operations	$ 127,179	$ (10,230)	$ 133,463	$ (23,819)
Other comprehensive income (loss) from discontinued operations - Foreign currency translation adjustments
Comprehensive loss	$ 123,384	$ (8,311)	$ 121,382	$ (48,587)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	123,384	(8,311)	121,382	(48,587)
Comprehensive income attributable to noncontrolling interests	(2,828)	(1,872)	(6,646)	(4,201)
Comprehensive loss attributable to Groupon Inc.	120,556	(10,183)	114,736	(52,788)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other comprehensive (loss) income, net of tax:
Net change in unrealized gain (loss), net, on AFS	39	(73)	176	(374)
Continuing Operations [Member]
Other comprehensive (loss) income, net of tax:
Net unrealized gain (losses) during the period	(3,376)	46	7,331	(1,178)
Reclassification of amount included in net income (loss) from continuing operations	4,401	0	4,401	0
Net change in unrealized gain (loss) - Foreign Currency Translation	1,025	46	11,732	(1,178)
Other comprehensive income	1,091	(27)	11,961	(1,552)
Comprehensive loss	(14,176)	(10,719)	(20,045)	(34,018)
Comprehensive loss	(14,176)	(10,719)	(20,045)	(34,018)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(14,176)	(10,719)	(20,045)	(34,018)
Discontinued Operations, Disposed of by Sale [Member]
Other comprehensive (loss) income, net of tax:
Net unrealized gain (losses) during the period	(1,932)	12,638	(4,349)	9,250
Reclassification of amount included in net income (loss) from continuing operations	12,313	0	12,313	0
Net change in unrealized gain (loss) - Foreign Currency Translation	10,381	12,638	7,964	9,250
Other comprehensive income	$ 137,560	$ 2,408	$ 141,427	$ (14,569)

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Loss) Condensed Consolidated Statements of Comprehensive Income (Loss) Parenthetical - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income Parenthetical [Abstract]
Tax effects for change in unrealized gain (loss)	$ 24	$ (45)	$ 107	$ (225)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	(5)		(10)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	$ (1,428)		$ 0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total Equity [Member]
Beginning Balance, Shares, Outstanding at Dec. 31, 2014		701,408,060
Beginning Balance, Equity at Dec. 31, 2014	$ 764,944	$ 70	$ 1,847,420		$ (921,960)	$ 35,763	$ 762,826	$ 2,118	$ 764,944
Beginning Balance, Treasury Stock, Shares at Dec. 31, 2014				(27,239,104)
Beginning Balance, Treasury Stock, Value at Dec. 31, 2014	(198,467)			$ (198,467)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ 101,457				94,811		94,811	6,646	101,457
Foreign currency translation, net of tax						19,696		0	19,696
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Net of Tax						53	53	0	53
Unrealized gain (loss) on available-for-sale debt security, net of tax						176	176		176
Issuance of unvested restricted stock	984,843
Exercise of stock options, shares		398,720
Exercise of stock options, value			375				375		375
Vesting of restricted stock units, shares		12,345,592
Vesting of restricted stock units, value		$ 1	(1)
Shares issued under employee stock purchase plan, shares		328,644
Shares issued under employee stock purchase plan, value			1,824				1,824		1,824
Tax withholding related to net share settlements of stock-based compensation awards, shares		(3,867,596)
Tax withholding related to net share settlements of stock-based compensation awards, value			(28,955)				(28,955)		(28,955)
Stock-based compensation on equity-classified awards			83,632				83,632		83,632
Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation			(1,403)				(1,403)		(1,403)
Purchases of treasury stock, shares				(21,752,444)
Purchases of treasury stock, value				$ (141,159)			(141,159)		(141,159)
Partnership distributions to noncontrolling interest holders								(7,894)	(7,894)
Ending Balance, Treasury Stock, Shares at Jun. 30, 2015				(48,991,548)
Ending Balance, Treasury Stock, Value at Jun. 30, 2015	$ (339,626)			$ (339,626)
Ending Balance, Shares, Outstanding at Jun. 30, 2015		711,598,263
Ending Balance, Equity at Jun. 30, 2015	$ 792,746	$ 71	$ 1,902,892		$ (827,149)	$ 55,688	$ 791,876	$ 870	$ 792,746

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Operating activities
Net loss		$ 101,457	$ (56,285)
Less: Income (loss) from discontinued operations		133,463	(23,819)
Loss from continuing operations		(32,006)	(32,466)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation, Depletion and Amortization		53,766	43,376
Amortization of acquired intangible assets		9,806	11,081
Share-based Compensation	[1]	73,629	52,649
Deferred income taxes		(50)	516
Excess tax benefits on stock-based compensation		(6,226)	(9,932)
Loss on equity method investments		0	368
Gain from changes in fair value of contingent consideration	[2]	(703)	(39)
Fair Value, Option, Changes in Fair Value, Gain (Loss)		(450)	0
Impairment of investments		0	588
Change in assets and liabilities, net of acquisitions:
Restricted cash		3,163	1,672
Accounts receivable		(10,282)	(22,220)
Prepaid expenses and other current assets		(6,447)	4,157
Accounts payable		(6,315)	(7,468)
Accrued merchant and supplier payables		(50,533)	(68,484)
Accrued expenses and other current liabilities		6,045	(28,956)
Other, net		17,309	12,059
Net cash provided by (used in) operating activities from continuing operations		50,706	(43,099)
Net cash used in operating activities from discontinued operations		(17,373)	(365)
Net cash provided by (used in) operating activities		33,333	(43,464)
Investing activities
Purchases of property and equipment and capitalized software		(40,746)	(44,805)
Acquisitions of businesses, net of acquired cash		(3,120)	(45,397)
Purchases of investments		(5,000)	(4,599)
Proceeds from sale of investment		1,231	0
Settlements of liabilities related to purchase of additional interest in consolidated subsidiary		(349)	0
Purchases of intangible assets		0	(350)
Net cash used in investing activities from continuing operations		(47,984)	(95,151)
Net cash used in investing activities from discontinued operations		244,470	(77,955)
Net cash used in investing activities		196,486	(173,106)
Financing activities
Payments for purchases of treasury stock		(136,115)	(135,474)
Excess tax benefits on stock-based compensation		6,226	9,932
Taxes paid related to net share settlements of stock-based compensation awards		(27,301)	(24,306)
Common stock issuance costs in connection with acquisition of business		0	(158)
Settlements of purchase price obligations related to acquisitions		0	(3,136)
Proceeds from stock option exercises and employee stock purchase plan		2,199	3,076
Partnership distribution payments to noncontrolling interest holders		(7,894)	(4,093)
Payment of Contingent Consideration		(382)	0
Payments of capital lease obligations		(7,902)	(2,086)
Net cash used in financing activities		(171,169)	(156,245)
Effect of exchange rate changes on cash and cash equivalents		(20,415)	431
Net decrease in cash and cash equivalents, including cash classified within current assets held for sale		38,235	(372,384)
Less: Increase in cash and cash equivalents classified within current assets held for sale		(55,279)	22,675
Net decrease in cash and cash equivalents		93,514	(395,059)
Cash and cash equivalents, beginning of period		1,016,634	1,240,472
Cash and cash equivalents, end of period		1,110,148	845,413
Non-cash investing and financing activities
Equipment acquired under capital lease obligations		7,245	7,933
Shares issued to settle liability-classified awards and contingent consideration		0	1,041
Liability for purchases of treasury stock		5,418	1,732
Liability for purchase of additional interests in consolidated subsidiaries		0	4,006
Liability for purchase consideration		250	359
Noncash or Part Noncash Acquisition, Investments Acquired		122,075	0
Continuing Operations [Member]
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Share-based Compensation		73,600	52,600
Non-cash investing and financing activities
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software - DiscOps		2,598	11,629
Discontinued Operations [Abstract]
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software - DiscOps		2,598	11,629
Discontinued Operations [Member]
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Share-based Compensation		5,300	2,800
Non-cash investing and financing activities
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software - DiscOps		0	599
Discontinued Operations [Abstract]
Issuance of common stock in connection with acquisition of business		0	162,862
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software - DiscOps		$ 0	$ 599
[1]	Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015.
[2]	Changes in the fair value of contingent consideration liabilities are classified within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations.

Description of Business and Bas

Description of Business and Basis of Presentation	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Company Information Groupon, Inc. and subsidiaries (the "Company"), which commenced operations in October 2008, operates online local commerce marketplaces throughout the world that connect merchants to consumers by offering goods and services at a discount. The Company also offers deals on products for which it acts as the merchant of record. Customers can access the Company's deal offerings directly through its websites and mobile applications and indirectly using search engines. The Company also sends emails to its subscribers with deal offerings that are targeted by location and personal preferences. The Company's operations are organized into three segments: North America, EMEA, which is comprised of Europe, Middle East and Africa, and the remainder of the Company's international operations ("Rest of World"). See Note 12 "Segment Information." In January 2014, the Company acquired all of the outstanding equity interests of LivingSocial Korea, Inc., including its subsidiary Ticket Monster, Inc. ("Ticket Monster"), for total consideration of $259.4 million , consisting of $96.5 million in cash and $162.9 million of Class A common stock. Ticket Monster is an e-commerce company based in the Republic of Korea that connects merchants to consumers by offering goods and services at a discount. The operations of Ticket Monster were previously reported in the Company's Rest of World segment. On May 27, 2015, the Company sold a controlling stake in Ticket Monster that resulted in its deconsolidation. The financial results of Ticket Monster, including the gain on disposition and related tax effects, are presented as discontinued operations in the accompanying condensed consolidated financial statements for the three and six months ended June 30, 2015 and 2014. Additionally, the assets and liabilities of Ticket Monster are presented as held for sale in the accompanying condensed consolidated balance sheet as of December 31, 2014. See Note 2, "Discontinued Operations," for additional information. Unaudited Interim Financial Information The Company has prepared the accompanying condensed consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC") for interim financial reporting. These condensed consolidated financial statements are unaudited and, in the Company's opinion, include all adjustments, consisting of normal recurring adjustments and accruals, necessary for a fair presentation of the Company's condensed consolidated balance sheets, statements of operations, comprehensive income (loss), cash flows and stockholders' equity for the periods presented. Operating results for the periods presented are not necessarily indicative of the results to be expected for the full year ending December 31, 2015. Certain information and disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been omitted in accordance with the rules and regulations of the SEC. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 13, 2015. Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company's condensed consolidated financial statements were prepared in accordance with U.S. GAAP and include the assets, liabilities, revenue and expenses of all wholly-owned subsidiaries and majority-owned subsidiaries over which the Company exercises control and variable interest entities for which the Company has determined that it is the primary beneficiary. Outside stockholders' interests in subsidiaries are shown on the condensed consolidated financial statements as "Noncontrolling interests." Equity investments in entities in which the Company does not have a controlling financial interest are accounted for under the equity method, the cost method, the fair value option or as available-for-sale securities, as appropriate. Reclassifications Certain reclassifications have been made to the condensed consolidated financial statements of prior periods and the accompanying notes to conform to the current period presentation. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the condensed 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, customer refunds, contingent liabilities and the useful lives of property, equipment and software and intangible assets. Actual results could differ materially from those estimates.

Discontinued Operations (Notes)

Discontinued Operations (Notes)	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS On May 27, 2015, the Company sold a controlling stake in Ticket Monster to an investor group. See Note 5, " Investments ," for information about this transaction. The Company recognized a pre-tax gain on the disposition of $202.2 million ( $138.0 million net of tax), which represents the excess of (a) the $398.8 million in net consideration received, consisting of (i) $285.0 million in cash proceeds and (ii) the $122.1 million fair value of its retained minority investment, less (iii) $8.3 million in transaction costs, over (b) the sum of (i) the $184.3 million net book value of Ticket Monster upon the closing of the transaction and (ii) Ticket Monster's $12.3 million cumulative translation loss, which was reclassified to earnings. The Company adopted the guidance in Accounting Standards Update (ASU) 2014-08, Reporting Discontinued Operations and Disclosure of Disposals of Components of an Entity , on January 1, 2015 for disposal transactions that occur on or after that date. Under that guidance, a component of an entity is reported in discontinued operations after meeting the criteria for held-for-sale classification if the disposition represents a strategic shift that has (or will have) a major effect on the entity's operations and financial results. The Company analyzed the quantitative and qualitative factors relevant to the Ticket Monster disposition transaction and determined that those conditions for discontinued operations presentation have been met. As such, the financial results of Ticket Monster, the gain on disposition and the related income tax effects are reported within discontinued operations in the accompanying condensed consolidated financial statements. The following table summarizes the major classes of line items included in income (loss) from discontinued operations, net of tax, for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 (1) 2014 2015 (1) 2014 Third party and other revenue $ 10,262 $ 33,437 $ 28,145 $ 62,164 Direct revenue 14,242 1,928 39,065 2,423 Third party and other cost of revenue (4,434 ) (9,621 ) (13,958 ) (18,170 ) Direct cost of revenue (12,082 ) (2,292 ) (38,031 ) (2,756 ) Marketing expense (3,472 ) (6,576 ) (8,495 ) (16,315 ) Selling, general and administrative expense (15,339 ) (27,106 ) (38,102 ) (51,165 ) Other income, net 35 — 96 — Loss from discontinued operations before gain on disposition and provision for income taxes (10,788 ) (10,230 ) (31,280 ) (23,819 ) Gain on disposition 202,158 — 202,158 — Provision for income taxes (64,191 ) — (37,415 ) — Income (loss) from discontinued operations, net of tax $ 127,179 $ (10,230 ) $ 133,463 $ (23,819 ) (1) The income from discontinued operations, net of tax, for the three and six months ended June 30, 2015 includes the results of Ticket Monster through the disposition date of May 27, 2015. The $64.2 million provision for income taxes for the three months ended June 30, 2015 reflects the current and deferred income tax effects of the Ticket Monster disposition. The $37.4 million provision for income taxes for the six months ended June 30, 2015 reflects (i) the $64.2 million current and deferred income tax effects of the Ticket Monster disposition during the second quarter of 2015, partially offset by (ii) a $26.8 million tax benefit that resulted from the recognition of a deferred tax asset related to the excess of the tax basis over the financial reporting basis of the Company's investment in Ticket Monster upon meeting the criteria for held-for-sale classification during the first quarter of 2015. No income tax benefits were recognized for the three and six months ended June 30, 2014 because valuation allowances have been provided against the related net deferred tax assets. The following table summarizes the carrying amounts of the major classes of assets and liabilities held for sale in the condensed consolidated balance sheet as of December 31, 2014 (in thousands): December 31, 2014 Cash $ 55,279 Accounts receivable, net 14,557 Deferred income taxes 512 Property, equipment and software, net 6,471 Goodwill 211,054 Intangible assets, net 79,948 Other assets 18,729 Assets classified as held for sale $ 386,550 Accounts payable $ 8,033 Accrued merchant and supplier payables 138,411 Accrued expenses 16,092 Deferred income taxes 512 Other liabilities 9,944 Liabilities classified as held for sale $ 172,992

Business Combinations (Notes)

Business Combinations (Notes)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Business Combinations	BUSINESS COMBINATIONS The Company acquired four businesses during the six months ended June 30, 2015 . Business combinations are accounted for using the acquisition method, and the results of each of those acquired businesses are included in the condensed consolidated financial statements beginning on the respective acquisition date. The fair value of consideration transferred in business combinations is allocated to the tangible and intangible assets acquired and liabilities assumed at the acquisition date, with the remaining unallocated amount recorded as goodwill. The allocations of the acquisition price for recent acquisitions have been prepared on a preliminary basis, and changes to those allocations may occur as a result of final working capital adjustments and tax return filings. Acquired goodwill represents the premium the Company paid over the fair value of the net tangible and intangible assets acquired. The Company paid these premiums for a number of reasons, including growing the Company's merchant and customer base, acquiring assembled workforces, expanding its presence in international markets, expanding and advancing its product offerings and enhancing technology capabilities. The goodwill from these business combinations is generally not deductible for tax purposes. For the three and six months ended June 30, 2015 , $0.9 million and $0.9 million , respectively, of external transaction costs related to business combinations, primarily consisting of legal and advisory fees, are classified within "Acquisition-related (benefit) expense, net" on the condensed consolidated statements of operations. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $5.7 million , which consisted of the following (in thousands): Cash $ 5,461 Liability for purchase consideration 250 Total $ 5,711 The following table summarizes the allocation of the aggregate purchase price of these acquisitions for the six months ended June 30, 2015 (in thousands): Net working capital deficit (including acquired cash of $2.3 million) $ (647 ) Goodwill 2,898 Intangible assets: (1) Subscriber relationships 1,016 Merchant relationships 809 Developed technology 1,339 Brand relationships 296 Total acquisition purchase price $ 5,711 (1) Acquired intangible assets have estimated useful lives of between 1 and 5 years. Pro forma results of operations for these acquisitions are not presented because the effects of these acquisitions, individually and in the aggregate, were not material to the Company's condensed consolidated results of operations.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	GOODWILL AND OTHER INTANGIBLE ASSETS The following table summarizes the Company's goodwill activity by segment for six months ended June 30, 2015 (in thousands): North America EMEA Rest of World Consolidated Balance as of December 31, 2014 $ 116,718 $ 102,179 $ 17,859 $ 236,756 Goodwill related to acquisitions 1,949 — 949 2,898 Foreign currency translation (36 ) (7,106 ) (1,051 ) (8,193 ) Balance as of June 30, 2015 $ 118,631 $ 95,073 $ 17,757 $ 231,461 The following tables summarize the Company's intangible assets (in thousands): June 30, 2015 Asset Category Gross Carrying Value Accumulated Amortization Net Carrying Value Subscriber relationships $ 47,519 $ 41,075 $ 6,444 Merchant relationships 8,705 7,903 802 Trade names 10,247 6,995 3,252 Developed technology 26,059 22,608 3,451 Brand relationships 7,960 2,277 5,683 Other intangible assets 16,739 12,525 4,214 Total $ 117,229 $ 93,383 $ 23,846 December 31, 2014 Asset Category Gross Carrying Value Accumulated Amortization Net Carrying Value Subscriber relationships $ 48,810 $ 37,744 $ 11,066 Merchant relationships 8,386 8,323 63 Trade names 10,532 6,935 3,597 Developed technology 25,352 21,713 3,639 Brand relationships 7,664 1,486 6,178 Other intangible assets 17,045 10,979 6,066 Total $ 117,789 $ 87,180 $ 30,609 Amortization of intangible assets is computed using the straight-line method over their estimated useful lives, which range from 1 to 5 years. Amortization expense related to intangible assets was $3.9 million and $5.1 million for the three months ended June 30, 2015 and 2014 , respectively, and $9.8 million and $11.1 million for the six months ended June 30, 2015 and 2014 , respectively. As of June 30, 2015 , the Company's estimated future amortization expense related to intangible assets is as follows (in thousands): Remaining amounts in 2015 $ 6,915 2016 9,339 2017 4,340 2018 3,103 2019 144 Thereafter 5 Total $ 23,846

Investments

Investments	6 Months Ended
	Jun. 30, 2015
Investments, All Other Investments [Abstract]
Investments	INVESTMENTS The following table summarizes the Company's investments (dollars in thousands): June 30, 2015 Percent Ownership of Voting Stock December 31, 2014 Percent Ownership of Voting Stock Cost method, equity method and fair value option investments: Cost method investments $ 14,586 6% to 19% $ 15,630 6% to 19% Equity method investments — 21% 1,231 21% to 50% Fair value option investment 122,525 48% — Total cost method, equity method and fair value option investments 137,111 16,861 Available-for-sale securities: Convertible debt securities 8,026 2,527 Redeemable preferred shares 4,881 17% to 19% 4,910 17% to 19% Total available-for-sale securities 12,907 7,437 Total investments $ 150,018 $ 24,298 The following table summarizes the amortized cost, gross unrealized gain, gross unrealized loss and fair value of the Company's available-for-sale securities as of June 30, 2015 and December 31, 2014 , respectively (in thousands): June 30, 2015 December 31, 2014 Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value Available-for-sale securities: Convertible debt securities $ 7,217 $ 809 $ — $ 8,026 $ 2,030 $ 497 $ — $ 2,527 Redeemable preferred shares 4,599 282 — 4,881 4,599 311 — 4,910 Total available-for-sale securities $ 11,816 $ 1,091 $ — $ 12,907 $ 6,629 $ 808 $ — $ 7,437 Investment in Monster LP On May 27, 2015, the Company completed the sale of a controlling stake in Ticket Monster to an investor group, whereby (a) the investor group contributed $350.0 million in cash to Monster Holdings LP ("Monster LP"), a newly-formed limited partnership, in exchange for 70,000,000 Class A units of Monster LP and (b) the Company contributed all of the issued and outstanding share capital of Ticket Monster to Monster LP in exchange for (i) 64,000,000 Class B units of Monster LP and (ii) $285.0 million in cash consideration. The investor group and Mr. Daniel Shin, the current chief executive officer and founder of Ticket Monster, will contribute an additional $10.0 million of cash consideration to Monster LP within six months of the closing date in exchange for 2,000,000 Class A units of Monster LP. Additionally, Monster LP is authorized to issue 20,321,839 Class C units to its management that will be subject to time-based vesting conditions and, for a portion of Class C units, a performance-based vesting condition. The Class A units of Monster LP are entitled to a $486.0 million liquidation preference, which must be paid prior to any distributions to the holders of Class B and Class C units. All distributions in excess of $486.0 million and up to $680.0 million will be paid to holders of Class B units. Holders of Class B units will be entitled to share in distributions between $703.0 million and $1,116.0 million in accordance with the terms of Monster LP's distribution waterfall, and distributions in excess of $1,116.0 million will be made pro rata to all unit holders. In connection with the disposition of Ticker Monster as discussed above, the Company obtained a minority limited partner interest in Monster LP. The investment in Monster LP was measured at its fair value of $122.1 million as of its acquisition date. The initial fair value was determined using the backsolve valuation method, which is a form of the market approach. Under this method, assumptions are made about the expected time to liquidity, volatility and risk-free rate such that the price paid by a third-party investor in a recent financing round can be used to determine the value of the entity and its other securities using option-pricing methodologies. The $122.1 million fair value of the Company's investment in Monster LP was based on the contractual liquidation preferences and the following valuation assumptions: 4-year expected time to a liquidity event, 60% volatility and a 1.3% risk-free rate. The initial fair value of Monster LP, determined using the backsolve method, was calibrated to a discounted cash flow valuation, an income approach, and was further corroborated using a market approach. The Company has made an irrevocable election to account for its minority limited partner interest in Monster LP at fair value with changes in fair value reported in earnings. The Company elected to apply fair value accounting because it believes that fair value is the most relevant measurement attribute for this investment, as well as to reduce operational and accounting complexity. As of June 30, 2015, the Company measured the fair value of Monster LP using the discounted cash flow method and the market approach. The Company recognized a gain of $0.5 million from changes in the fair value of its investment in Monster LP from the acquisition date to June 30, 2015. The following table summarizes the condensed consolidated financial information for Monster LP (in thousands): Period from May 28, 2015 through June 30, 2015 (1) Revenue $ 14,110 Gross profit 4,338 Loss before income taxes (8,339 ) Net loss (8,339 ) June 30, 2015 Current assets $ 146,960 Non-current assets 512,766 Current liabilities 186,792 Non-current liabilities 7,277 (1) The summarized financial information is presented for the period beginning May 28, 2015, after completion of the Ticket Monster disposition transaction that resulted in the Company obtaining its minority limited partner interest in Monster LP.

Supplemental Consolidated Balan

Supplemental Consolidated Balance Sheet and Statement of Operations Information	6 Months Ended
	Jun. 30, 2015
SUPPLEMENTAL CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS INFORMATION [Abstract]
Supplemental Consolidated Balance Sheets and Statements of Operations Information	SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION The following table summarizes the Company's other income (expense), net for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Interest income $ 330 $ 418 $ 557 $ 796 Interest expense (473 ) (134 ) (1,143 ) (221 ) Impairments of investments — (191 ) — (588 ) Loss on equity method investments — (420 ) — (368 ) Gain on changes in fair value of investment 450 — 450 — Foreign currency gains (losses), net (1) 2,532 (724 ) (16,965 ) (1,473 ) Other 102 28 115 (9 ) Other income (expense), net $ 2,941 $ (1,023 ) $ (16,986 ) $ (1,863 ) (1) Foreign currency gains (losses), net for the three and six months ended June 30, 2015 includes a $4.4 million loss related to the cumulative translation adjustment from the Company's legacy business in the Republic of Korea that was reclassified to earnings as a result of the Ticket Monster disposition. The following table summarizes the Company's prepaid expenses and other current assets as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Unamortized tax effects on intercompany transactions $ 4,204 $ 14,170 Finished goods inventories 48,480 52,237 Prepaid expenses 47,782 32,758 Restricted cash 6,677 10,852 Income taxes receivable 34,574 41,769 VAT receivable 12,616 17,746 Prepaid marketing 5,691 7,413 Other 13,422 15,437 Total prepaid expenses and other current assets $ 173,446 $ 192,382 The following table summarizes the Company's accrued merchant and supplier payables as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Accrued merchant payables $ 485,221 $ 499,317 Accrued supplier payables (1) 214,544 272,839 Total accrued merchant and supplier payables $ 699,765 $ 772,156 (1) Amounts include payables to suppliers of inventories and providers of shipping and fulfillment services. The following table summarizes the Company's accrued expenses as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Marketing $ 17,531 $ 15,962 Refunds reserve 29,263 32,535 Payroll and benefits 51,407 59,802 Customer credits 34,333 42,729 Professional fees 21,590 14,254 Other 65,924 48,978 Total accrued expenses $ 220,048 $ 214,260 The following table summarizes the Company's other current liabilities as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Income taxes payable $ 9,765 $ 14,461 VAT payable 20,752 30,778 Sales taxes payable 5,742 9,042 Deferred revenue 50,911 46,344 Capital lease obligations 15,754 14,872 Other 20,168 11,624 Total other current liabilities $ 123,092 $ 127,121 The following table summarizes the Company's other non-current liabilities as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Long-term tax liabilities $ 91,828 $ 82,138 Deferred rent 13,017 13,200 Capital lease obligations 17,251 23,387 Other 7,908 10,806 Total other non-current liabilities $ 130,004 $ 129,531 The following table summarizes the components of accumulated other comprehensive income as of June 30, 2015 and December 31, 2014 (in thousands): Foreign currency translation adjustments Unrealized gain (loss) on available-for-sale securities Pension adjustments Total Balance as of December 31, 2014 $ 36,764 $ 499 $ (1,500 ) $ 35,763 Other comprehensive income 19,696 176 53 19,925 Balance at June 30, 2015 $ 56,460 $ 675 $ (1,447 ) $ 55,688

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES The Company's commitments as of June 30, 2015 did not materially change from the amounts set forth in the Company's 2014 Annual Report on Form 10-K. Legal Matters From time to time, the Company is party to various legal proceedings incident to the operation of its business. For example, the Company is currently involved in proceedings brought by stockholders, former employees and merchants, intellectual property infringement suits and suits by customers (individually or as class actions) alleging, among other things, violations of the federal securities laws, the Credit Card Accountability, Responsibility and Disclosure Act and state laws governing gift cards, stored value cards and coupons. The following is a brief description of significant legal proceedings. On February 8, 2012, the Company issued a press release announcing its expected financial results for the fourth quarter of 2011. After finalizing its year-end financial statements, the Company announced on March 30, 2012 revised financial results, as well as a material weakness in its internal control over financial reporting related to deficiencies in its financial statement close process. The revisions resulted in a reduction to fourth quarter 2011 revenue of $14.3 million . The revisions also resulted in an increase to fourth quarter operating expenses that reduced operating income by $30.0 million , net income by $22.6 million and earnings per share by $0.04 . Following this announcement, the Company and several of its current and former directors and officers were named as parties to the following outstanding securities class action and purported stockholder derivative lawsuits all arising out of the same alleged events and facts. The Company is currently a defendant in a proceeding pursuant to which, on October 29, 2012, a consolidated amended class action complaint was filed against the Company, certain of its directors and officers, and the underwriters that participated in the initial public offering of the Company's Class A common stock. Originally filed in April 2012, the case is currently pending before the United States District Court for the Northern District of Illinois: In re Groupon, Inc. Securities Litigation . The complaint asserts claims pursuant to Sections 11 and 15 of the Securities Act of 1933 and Sections 10(b) and 20(a) of the Securities Exchange Act of 1934. Allegations in the consolidated amended complaint include that the Company and its officers and directors made untrue statements or omissions of material fact by issuing inaccurate financial statements for the fiscal quarter and the fiscal year ending December 31, 2011 and by failing to disclose information about the Company's financial controls in the registration statement and prospectus for the Company's initial public offering of Class A common stock and in the Company's subsequently-issued earnings release dated February 8, 2012. The lawsuit seeks an unspecified amount of monetary damages, reimbursement for fees and costs incurred in connection with the actions, including attorneys' fees, and various other forms of monetary and non-monetary relief. On September 25, 2014, the district court entered an order granting plaintiff's motion for class certification. On October 1, 2014, the Company filed a petition for leave to appeal that order in the United States Court of Appeals for the Seventh Circuit, which the court denied on May 7, 2015, and the Company retains its right to appeal any final judgment that is entered in the action. On June 25, 2015, the district court entered an order directing that class notice be provided to the members of the certified class and subclass, and establishing a program and schedule for class notice. On June 29, 2015, the parties concluded fact discovery, including the depositions of fact witnesses. The parties are currently engaged in expert discovery, and dispositive motions are scheduled to be filed by January 29, 2016. The district court has not yet scheduled a trial date. In addition, federal and state purported stockholder derivative lawsuits have been filed against certain of the Company's current and former directors and officers. The federal purported stockholder derivative lawsuit was originally filed in April 2012, and a consolidated stockholder derivative complaint, filed on July 30, 2012, is currently pending in the United States District Court for the Northern District of Illinois: In re Groupon Derivative Litigation . Plaintiffs assert claims for breach of fiduciary duty and abuse of control. The state derivative cases are currently pending before the Chancery Division of the Circuit Court of Cook County, Illinois: Orrego v. Lefkofsky, et al., was filed on April 5, 2012; and Kim v. Lefkofsky, et al., was filed on May 25, 2012. The state derivative complaints generally allege that the defendants breached their fiduciary duties by purportedly mismanaging the Company's business by, among other things, failing to utilize proper accounting controls and, in the case of one of the state derivative lawsuits, by engaging in alleged insider trading of the Company's Class A common stock and misappropriating information. In addition, one state derivative case asserts a claim for unjust enrichment. The derivative lawsuits purport to seek to recoup for the Company an unspecified amount of monetary damages allegedly sustained by the Company, restitution from defendants, reimbursement for fees and costs incurred in connection with the actions, including attorneys' fees, and various other forms of monetary and non-monetary relief. On June 20, 2012, the Company and the individual defendants filed a motion requesting that the court stay the consolidated federal derivative action pending resolution of the consolidated federal class action. On July 31, 2012, the court granted defendants' motion in part, and stayed the consolidated federal derivative action pending a separate resolution of upcoming motions to dismiss in the consolidated federal class action. On June 15, 2012, the state plaintiffs filed a motion to consolidate the state derivative actions, which was granted on July 2, 2012, and on July 5, 2012, the plaintiffs filed a motion for appointment of co-lead plaintiffs and co-lead counsel, which was granted on July 27, 2012. No consolidated complaint has been filed in the state derivative action. On September 14, 2012, the court granted a motion filed by the parties requesting that the court stay the state derivative actions pending the federal court's resolution of anticipated motions to dismiss in the consolidated federal class action. On April 18, 2013, the state court appointed a lead plaintiff and approved its selection of lead counsel and local counsel for the purported derivative action. Following entry of the federal court's order denying defendants' motions to dismiss in In re Groupon Securities Litigation, the courts in both the state and federal derivative actions granted motions requesting that the respective courts extend the litigation stays currently in place pending further developments in In re Groupon, Inc. Securities Litigation. The Company intends to defend all of the securities and stockholder derivative lawsuits vigorously. In 2010, the Company was named as a defendant in a series of class actions that came to be consolidated in the U.S. District Court for the Southern District of California. The consolidated actions are referred to as In re Groupon Marketing and Sales Practices Litigation . The Company denies liability, but the parties agreed to settle the litigation for $8.5 million before any determination had been made on the merits or with respect to class certification. On December 18, 2012, the district court approved the settlement over various objections to the settlement lodged by certain individual class members. Thereafter, certain of the objectors filed an appeal, and on February 19, 2015, the Court of Appeals vacated the settlement and remanded the case for further proceedings concerning the proposed settlement consistent with the Court of Appeals' opinion. On June 22, 2015, the Company terminated the settlement agreement as is permitted under its terms. The parties thereafter re-commenced settlement negotiations, and in July 2015 reached an agreement in principle regarding a new settlement involving a combination of cash and Groupon credits, worth a total of $8.5M, which the parties are in the process of documenting and which the parties plan to submit to the court during the third quarter for approval under the rules that govern class action settlements. The Company continues to deny liability and if the settlement is not approved by the court or is not consummated for any reason, will contest the case vigorously. In addition, third parties have from time to time claimed, and others may claim in the future, that the Company has infringed their intellectual property rights. The Company is subject to intellectual property disputes, including patent infringement claims, and expects that it will increasingly be subject to intellectual property infringement claims as its services expand in scope and complexity. The Company has in the past litigated such claims, and the Company is presently involved in several patent infringement and other intellectual property-related claims, including pending litigation, some of which could involve potentially substantial claims for damages. The Company may also become more vulnerable to third party claims as laws such as the Digital Millennium Copyright Act are interpreted by the courts, and as the Company becomes subject to laws in jurisdictions where the underlying laws with respect to the potential liability of online intermediaries are either unclear or less favorable. The Company believes that additional lawsuits alleging that it has violated patent, copyright or trademark laws will be filed against it. Intellectual property claims, whether meritorious or not, are time consuming and costly to resolve, could require expensive changes in the Company's methods of doing business, or could require it to enter into costly royalty or licensing agreements. The Company is also subject to, or in the future may become subject to, a variety of regulatory inquiries across the jurisdictions where the Company conducts its business, including, for example, consumer protection, marketing practices, tax and privacy rules and regulations. Any regulatory actions against the Company, whether meritorious or not, could be time consuming, result in costly litigation, damage awards, injunctive relief or increased costs of doing business through adverse judgment or settlement, require the Company to change its business practices in expensive ways, require significant amounts of management time, result in the diversion of significant operational resources or otherwise harm the Company's business. Certain foreign tax authorities have issued assessments totaling $43.4 million to subsidiaries of the Company for additional value-added taxes (VAT) covering periods ranging from January 2011 to May 2014, including interest and penalties through the date of the assessments. Those tax authorities are alleging that, for VAT purposes, the Company's revenues from voucher sales should reflect the total amounts collected from purchasers of those vouchers, rather than the amounts that the Company retains after deducting the portion that is payable to the featured merchants. The Company believes that the assessments are without merit and intends to vigorously defend itself in these matters. The Company establishes an accrued liability for loss contingencies related to legal and regulatory matters when the loss is both probable and estimable. These accruals represent management's best estimate of probable losses and in such cases, there may be an exposure to loss in excess of the amounts accrued. For each matter described above, there are inherent and significant uncertainties based on, among other factors, the stage of the proceedings, developments in the applicable facts of law, or the lack of a specific damage claim. In addition, for some matters for which a loss is probable or reasonably possible, an estimate of the amount of loss or range of loss is not possible, and we may be unable to estimate the possible loss or range of losses that could potentially result from the application of non-monetary remedies. Currently, the Company is unable to reasonably estimate the amount of reasonably possible losses in excess of the amounts accrued for the securities and stockholder derivative lawsuits. For the remaining matters described above, the Company believes that the amount of reasonably possible losses in excess of the amounts accrued would not have a material adverse effect on its business, consolidated financial position, results of operations or cash flows. The Company's accrued liabilities for loss contingencies related to legal and regulatory matters may change in the future as a result of new developments, including, but not limited to, the occurrence of new legal matters, changes in the law or regulatory environment, adverse or favorable rulings, newly discovered facts relevant to the matter, or changes in the strategy for the matter. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. Indemnification In the normal course of business to facilitate transactions related to its operations, the Company indemnifies certain parties, including employees, lessors, service providers and merchants, with respect to various matters. The Company has agreed to hold certain parties harmless against losses arising from a breach of representations or covenants, or other claims made against those parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. The Company is also subject to increased exposure to various claims as a result of its acquisitions, particularly in cases where the Company is entering into new businesses in connection with such acquisitions. The Company may also become more vulnerable to claims as it expands the range and scope of its services and is subject to laws in jurisdictions where the underlying laws with respect to potential liability are either unclear or less favorable. In addition, the Company has entered into indemnification agreements with its officers, directors and underwriters, and the Company's bylaws contain similar indemnification obligations to agents. It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, any payments that the Company has made under these agreements have not had a material impact on the operating results, financial position or cash flows of the Company.

Stockholders' Equity and Compen

Stockholders' Equity and Compensation Arrangements Stockholders' Equity and Compensation Arrangements (Note)	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity and Compensation Arrangements	STOCKHOLDERS' EQUITY AND COMPENSATION ARRANGEMENTS Common Stock The Company's certificate of incorporation, as amended and restated, authorizes three classes of common stock: Class A common stock, Class B common stock and common stock. No shares of common stock will be issued or outstanding until October 31, 2016, at which time all outstanding shares of Class A common stock and Class B common stock will automatically convert into shares of common stock. In addition, the Company's certificate of incorporation authorizes shares of undesignated preferred stock, the rights, preferences and privileges of which may be designated from time to time by the Board. Share Repurchase Programs The Board previously authorized the Company to purchase up to $300.0 million of its outstanding Class A common stock through August 2015. The Company has completed its repurchases under this authorization. During the three months ended June 30, 2015 , the Company announced that its Board approved a new share repurchase program, under which the Company is authorized to repurchase up to an additional $500.0 million of its Class A common stock through August 2017. During the three and six months ended June 30, 2015 , the Company purchased 19,334,744 and 21,752,444 shares of Class A common stock, respectively, for an aggregate purchase price of $122.7 million and $141.2 million (including fees and commissions), respectively, under its share repurchase programs. As of June 30, 2015 , up to $461.0 million of Class A common stock remains available for purchase under its current share repurchase program. The timing and amount of any share repurchases are determined based on market conditions, share price and other factors, and the programs may be discontinued or suspended at any time. Groupon, Inc. Stock Plans The Groupon, Inc. Stock Plans (the "Plans") are administered by the Compensation Committee of the Board, which determines the number of awards to be issued, the corresponding vesting schedule and the exercise price for options. As of June 30, 2015 , 33,584,296 shares were available for future issuance under the Plans. The Company recognized stock-based compensation expense from continuing operations of $38.5 million and $29.7 million for the three months ended June 30, 2015 and 2014 , respectively, and $73.6 million and $52.6 million for the six months ended June 30, 2015 and 2014 , respectively, related to stock awards issued under the Plans and acquisition-related awards. The Company recognized stock-based compensation expense from discontinued operations of $4.2 million and $2.0 million for the three months ended June 30, 2015 and 2014 , respectively, and $5.3 million and $2.8 million for the six months ended June 30, 2015 and 2014 , respectively. The Company also capitalized $3.3 million and $2.8 million of stock-based compensation for the three months ended June 30, 2015 and 2014 , respectively, and $6.4 million and $5.1 million for the six months ended June 30, 2015 and 2014 , respectively, in connection with internally-developed software. As of June 30, 2015 , a total of $257.1 million of unrecognized compensation costs related to unvested employee stock awards and unvested acquisition-related awards are expected to be recognized over a remaining weighted-average period of 1.30 years. Employee Stock Purchase Plan The Company is authorized to grant up to 10,000,000 shares of common stock under its employee stock purchase plan ("ESPP"). For the six months ended June 30, 2015 and 2014 , 328,644 and 333,824 shares of common stock were issued under the ESPP, respectively. Stock Options The table below summarizes the stock option activity for the six months ended June 30, 2015 : Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2014 2,262,994 $ 1.09 5.03 $ 16,226 Exercised (398,720 ) $ 0.94 Forfeited (902 ) $ 2.48 Outstanding at June 30, 2015 1,863,372 $ 1.12 4.55 $ 7,286 Exercisable at June 30, 2015 1,863,372 $ 1.12 4.55 $ 7,286 (1) The aggregate intrinsic value of options outstanding and exercisable represents the total pretax intrinsic value (the difference between the fair value of the Company's stock on the last day of each period and the exercise price, multiplied by the number of options where the fair value exceeds the exercise price) that would have been received by the option holders had all option holders exercised their options as of June 30, 2015 and December 31, 2014 , respectively. Restricted Stock Units The restricted stock units granted under the Plans generally vest over a four-year period, with 25% of the awards vesting after one year and the remaining awards vesting on a monthly or quarterly basis thereafter. Restricted stock units are generally amortized on a straight-line basis over the requisite service period, except for restricted stock units with performance conditions, which are amortized using the accelerated method. During the three months ended June 30, 2015, 575,744 restricted stock units previously granted to Ticket Monster employees were modified to permit continued vesting following the Company’s sale of its controlling stake in Ticket Monster. These nonemployee restricted stock units, which require ongoing employment with Ticket Monster to vest, will be remeasured to fair value at each reporting period. The table below summarizes activity regarding unvested restricted stock units granted under the Plans for the six months ended June 30, 2015 : Restricted Stock Units Weighted- Average Grant Date Fair Value (per share) Unvested at December 31, 2014 41,337,927 $ 7.78 Granted 18,480,855 $ 7.10 Vested (12,345,592 ) $ 7.93 Forfeited (4,242,851 ) $ 8.00 Unvested at June 30, 2015 43,230,339 $ 7.42 Performance Share Units The Company completed its acquisition of Ticket Monster in January 2014 and approximately 2,000,000 performance share units were granted to certain key employees of that subsidiary. The vesting of these awards into shares of the Company's Class A common stock was contingent upon the subsidiary's achievement of specified financial targets over three annual performance periods for the years ending December 31, 2014, 2015 and 2016 and was subject to continued employment at the end of each performance period. If the financial targets for a performance period are not achieved, no shares will be issued for that performance period. The grant date fair value of the performance share units was $8.07 per share. No shares were issued for the 2014 annual performance period because the financial targets were not met. Stock-based compensation expense was not recognized for the performance share units for the three and six months ended June 30, 2015 because it was not probable that the financial targets for the remaining annual performance periods would be achieved. The performance share units were canceled upon the Company's disposition of Ticket Monster in May 2015. Restricted Stock Awards The Company has granted restricted stock awards in connection with business combinations. Compensation expense on these awards is recognized on a straight-line basis over the requisite service periods. The table below summarizes activity regarding unvested restricted stock for the six months ended June 30, 2015 : Restricted Stock Awards Weighted- Average Grant Date Fair Value (per share) Unvested at December 31, 2014 34,067 $ 15.53 Granted 984,843 $ 7.42 Vested (34,067 ) $ 15.53 Forfeited — $ — Unvested at June 30, 2015 984,843 $ 7.42

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company's tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items. For the three months ended June 30, 2015 , the Company recorded income tax expense from continuing operations of $9.0 million on a pre-tax loss from continuing operations of $6.3 million . For the three months ended June 30, 2014 , the Company recorded income tax expense from continuing operations of $12.0 million on pre-tax income from continuing operations of $1.4 million . For the six months ended June 30, 2015 , the Company recorded income tax expense from continuing operations of $11.1 million on a pre-tax loss from continuing operations of $20.9 million . For the six months ended June 30, 2014 , the Company recorded income tax expense from continuing operations of $26.6 million on pre-tax losses from continuing operations of $5.9 million . The Company's U.S. statutory rate is 35% . Significant factors impacting the effective tax rate for the three and six months ended June 30, 2015 and 2014 included losses from continuing operations in jurisdictions that the Company is not able to benefit due to uncertainty as to the realization of those losses, amortization of the tax effects of intercompany sales of intellectual property and nondeductible stock-based compensation expense. The Company is currently undergoing income tax audits in multiple jurisdictions. There are many factors, including factors outside of the Company's control, which influence the progress and completion of these audits. As of June 30, 2015 , the Company believes that it is reasonably possible that changes of up to $19.3 million in unrecognized tax benefits may occur within the next 12 months upon closing of income tax audits or the expiration of applicable statutes of limitations. As of June 30, 2015 and December 31, 2014 , unamortized tax effects of intercompany transactions of $4.2 million and $14.2 million , respectively, are included within "Prepaid expenses and other current assets" on the condensed consolidated balance sheets. As of June 30, 2015 , the estimated future amortization of the tax effects of intercompany transactions is $4.2 million for the remainder of 2015. These amounts exclude the benefits, if any, for tax deductions in other jurisdictions that the Company may be entitled to as a result of the related intercompany transactions. See Note 2, "Discontinued Operations," for discussion of the income tax provision (benefit) from discontinued operations for the three and six months ended June 30, 2015 and 2014.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair value is defined under U.S. GAAP as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. To increase the comparability of fair value measures, the following hierarchy prioritizes the inputs in valuation methodologies used to measure fair value: Level 1 - Measurements that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 - Measurements that include other inputs that are directly or indirectly observable in the marketplace. Level 3 - Measurements derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. These fair value measurements require significant judgment. In determining fair value, the Company uses various valuation approaches within the fair value measurement framework. The valuation methodologies used for the Company's assets and liabilities measured at fair value and their classification in the valuation hierarchy are summarized below: Cash equivalents - Cash equivalents primarily consist of AAA-rated money market funds with overnight liquidity and no stated maturities. The Company classified cash equivalents as Level 1 due to the short-term nature of these instruments and measured the fair value based on quoted prices in active markets for identical assets. Available-for-sale securities and fair value option investment - The Company has investments in redeemable preferred shares and convertible debt securities issued by nonpublic entities. The Company measures the fair value of available-for-sale securities using the discounted cash flow method, which is an income approach, and the probability-weighted expected return method, which is an income approach that incorporates probability-weighted outcomes. See Note 5, Investments , for discussion of the valuation methodologies used to measure the fair value of the Company's investment in Monster LP. The Company has classified its investments in available-for-sale securities and its fair value option investment in Monster LP as Level 3 due to the lack of observable market data over fair value inputs such as cash flow projections, discount rates and probability-weightings. Increases in projected cash flows and decreases in discount rates contribute to increases in the estimated fair values of available-for-sale securities and the investment in Monster LP, whereas decreases in projected cash flows and increases in discount rates contribute to decreases in their fair values. Additionally, increases in the probabilities of favorable investment outcomes, such as a sale or initial public offering of the investee, and decreases in the probabilities of unfavorable outcomes, such as a default by the investee, contribute to increases in the estimated fair value of available-for-sale securities, whereas decreases in the probabilities of favorable investment outcomes and increases in the probabilities of unfavorable investment outcomes contribute to decreases in their fair values. Contingent consideration - The Company has contingent obligations to transfer cash to the former owners of acquired businesses if specified financial results are met over future reporting periods (i.e. earn-outs). Liabilities for contingent consideration are measured at fair value each reporting period, with the acquisition-date fair value included as part of the consideration transferred and subsequent changes in fair value are recorded in earnings within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations. The Company uses an income approach to value contingent consideration obligations based on future financial performance, which is determined based on the present value of probability-weighted future cash flows. The Company has generally classified the contingent consideration liabilities as Level 3 due to the lack of relevant observable market data over fair value inputs such as probability-weighting of payment outcomes. Increases in the assessed likelihood of a higher payout under a contingent consideration arrangement contribute to increases in the fair value of the related liability. Conversely, decreases in the assessed likelihood of a higher payout under a contingent consideration arrangement contribute to decreases in the fair value of the related liability. Changes in assumptions could have an impact on the payout of contingent consideration arrangements with a maximum payout of $7.0 million . The following tables summarize the Company's assets and liabilities that are measured at fair value on a recurring basis (in thousands): Fair Value Measurement at Reporting Date Using Description June 30, 2015 Quoted Prices in Active Markets for Significant Other Significant Assets: Cash equivalents $ 490,635 $ 490,635 $ — $ — Fair value option investment 122,525 — — 122,525 Available-for-sale securities: Convertible debt securities 8,026 — — 8,026 Redeemable preferred shares 4,881 — — 4,881 Liabilities: Contingent consideration 233 — — 233 Fair Value Measurement at Reporting Date Using Description December 31, 2014 Quoted Prices in Active Markets for Significant Other Significant Assets: Cash equivalents $ 440,596 $ 440,596 $ — $ — Available-for-sale securities: Convertible debt securities 2,527 — — 2,527 Redeemable preferred shares 4,910 — — 4,910 Liabilities: Contingent consideration 1,983 — — 1,983 The following table provides a roll-forward of the fair value of recurring Level 3 fair value measurements for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Assets Fair value option investment: Beginning Balance $ — $ — $ — $ — Acquisition of investment in Monster LP 122,075 — 122,075 — Total gains (losses) included in earnings 450 — 450 — Ending Balance $ 122,525 $ — $ 122,525 $ — Unrealized gains (losses) still held (1) $ 450 $ — $ 450 $ — Available-for-sale securities Convertible debt securities: Beginning Balance $ 2,757 $ 2,693 $ 2,527 $ 3,174 Purchase of convertible debt security 5,000 — 5,000 — Total gains (losses) included in other comprehensive income 82 (63 ) 312 (544 ) Total gains (losses) included in other income (expense), net (2) 187 $ — 187 $ — Ending Balance $ 8,026 $ 2,630 $ 8,026 $ 2,630 Unrealized gains (losses) still held (1) $ 269 $ (63 ) $ 499 $ (544 ) Redeemable preferred shares: Beginning Balance $ 4,900 $ 4,599 $ 4,910 $ — Purchase of redeemable preferred shares — — — 4,599 Total (losses) gains included in other comprehensive income (19 ) (55 ) (29 ) (55 ) Ending Balance $ 4,881 $ 4,544 $ 4,881 $ 4,544 Unrealized (losses) gains still held (1) $ (19 ) $ (55 ) $ (29 ) $ (55 ) Liabilities Contingent Consideration: Beginning Balance $ 1,373 $ — $ 1,983 $ 606 Issuance of contingent consideration in connection with acquisitions — 4,006 — 4,006 Settlements of contingent consideration liabilities (716 ) — (716 ) (424 ) Reclass to non-fair value liabilities when no longer contingent — — (331 ) (143 ) Total gains included in earnings (3) (424 ) — (703 ) (39 ) Ending Balance $ 233 $ 4,006 $ 233 $ 4,006 Unrealized (gains) losses still held (1) $ (857 ) $ — $ (1,091 ) $ — (1) Represents the unrealized losses or gains recorded in earnings and/or other comprehensive income (loss) during the period for assets and liabilities classified as Level 3 that are still held (or outstanding) at the end of the period. (2) Represents accretion of interest income and changes in the fair value of an embedded derivative. (3) Changes in the fair value of contingent consideration liabilities are classified within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Certain assets and liabilities are measured at fair value on a nonrecurring basis, including assets that are written down to fair value as a result of an impairment. The Company did not record any significant nonrecurring fair value measurements after initial recognition for the three and six months ended June 30, 2015 and 2014 . Estimated Fair Value of Financial Assets and Liabilities Not Measured at Fair Value The following table presents the carrying amounts and fair values of financial instruments that are not carried at fair value in the consolidated financial statements (in thousands): June 30, 2015 December 31, 2014 Carrying Amount Fair Value Carrying Amount Fair Value Cost method investments $ 14,586 $ 14,884 $ 15,630 $ 16,134 The fair values of the Company's cost method investments were determined using the market approach or the income approach, depending on the availability of fair value inputs such as financial projections for the investees and market multiples for comparable companies. The Company has classified the fair value measurements of its cost method investments as Level 3 measurements within the fair value hierarchy because they involve significant unobservable inputs such as cash flow projections and discount rates. The Company's other financial instruments not carried at fair value consist primarily of short term certificates of deposit, accounts receivable, restricted cash, accounts payable, accrued merchant and supplier payables and accrued expenses. The carrying values of these assets and liabilities approximate their respective fair values as of June 30, 2015 and December 31, 2014 due to their short-term nature.

Income (Loss) Per Share of Clas

Income (Loss) Per Share of Class A and Class B Common Stock	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Income (Loss) Per Share of Class A and Class B Common Stock	LOSS) PER SHARE OF CLASS A AND CLASS B COMMON STOCK The Company computes net income (loss) per share of Class A and Class B common stock using the two-class method. Basic net income (loss) per share is computed using the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is computed using the weighted-average number of common shares and the effect of potentially dilutive equity awards outstanding during the period. Potentially dilutive securities consist of stock options, restricted stock units, unvested restricted stock awards and ESPP shares. The dilutive effect of these equity awards is reflected in diluted net income (loss) per share by application of the treasury stock method. The computation of the diluted net income (loss) per share of Class A common stock assumes the conversion of Class B common stock, if dilutive, while the diluted net income (loss) per share of Class B common stock does not assume the conversion of those shares. The rights, including the liquidation and dividend rights, of the holders of Class A and Class B common stock are identical, except with respect to voting. Under the two-class method, the undistributed earnings for each period are allocated based on the contractual participation rights of the Class A and Class B common shares as if the earnings for the period had been distributed. As the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis. Further, as the Company assumes the conversion of Class B common stock, if dilutive, in the computation of the diluted net income (loss) per share of Class A common stock, the undistributed earnings are equal to net income (loss) for that computation. The following table sets forth the computation of basic and diluted net income (loss) per share of Class A and Class B common stock for the three and six months ended June 30, 2015 and 2014 (in thousands, except share amounts and per share amounts): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Class A Class B Class A Class B Class A Class B Class A Class B Basic net income (loss) per share: Numerator Allocation of net loss - continuing operations $ (15,211 ) $ (56 ) $ (10,653 ) $ (39 ) $ (31,892 ) $ (114 ) $ (32,351 ) $ (115 ) Less: Allocation of net income attributable to noncontrolling interests 2,818 10 1,946 7 6,622 24 4,369 16 Allocation of net loss attributable to common stockholders - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Allocation of net income (loss) attributable to common stockholders - discontinued operations 126,725 454 (10,193 ) (37 ) 132,986 477 (23,734 ) (85 ) Allocation of net loss attributable to common stockholders $ 108,696 $ 388 $ (22,792 ) $ (83 ) $ 94,472 $ 339 $ (60,454 ) $ (216 ) Denominator Weighted-average common shares outstanding 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Basic net income (loss) per share: Continuing operations $ (0.03 ) $ (0.03 ) $ (0.02 ) $ (0.02 ) $ (0.06 ) $ (0.06 ) $ (0.05 ) $ (0.05 ) Discontinued operations 0.19 0.19 (0.01 ) (0.01 ) 0.20 0.20 (0.04 ) (0.04 ) Basic net income (loss) per share $ 0.16 $ 0.16 $ (0.03 ) $ (0.03 ) $ 0.14 $ 0.14 $ (0.09 ) $ (0.09 ) Diluted net income (loss) per share: Numerator Allocation of net loss attributable to common stockholders for basic computation - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Reallocation of net income (loss) attributable to common stockholders as a result of conversion of Class B (1) — — — — — — — — Allocation of net loss attributable to common stockholders - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Allocation of net income (loss) attributable to common stockholders for basic computation - discontinued operations $ 126,725 $ 454 $ (10,193 ) $ (37 ) $ 132,986 $ 477 $ (23,734 ) $ (85 ) Reallocation of net income (loss) attributable to common stockholders as a result of conversion of Class B (1) — — — — — — — — Allocation of net loss attributable to common stockholders - discontinued operations 126,725 454 (10,193 ) (37 ) 132,986 477 (23,734 ) (85 ) Allocation of net loss attributable to common stockholders $ 108,696 $ 388 $ (22,792 ) $ (83 ) $ 94,472 $ 339 $ (60,454 ) $ (216 ) Denominator Weighted-average common shares outstanding used in basic computation 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Conversion of Class B (1) — — — — — — — — Employee stock options (1) — — — — — — — — Restricted shares and RSUs (1) — — — — — — — — Weighted-average diluted shares outstanding (1) 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Diluted net income (loss) per share: Continuing operations $ (0.03 ) $ (0.03 ) $ (0.02 ) $ (0.02 ) $ (0.06 ) $ (0.06 ) $ (0.05 ) $ (0.05 ) Discontinued operations 0.19 0.19 (0.01 ) (0.01 ) 0.20 0.20 (0.04 ) (0.04 ) Diluted net income (loss) per share $ 0.16 $ 0.16 $ (0.03 ) $ (0.03 ) $ 0.14 $ 0.14 $ (0.09 ) $ (0.09 ) (1) Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted net loss per share calculation for the three and six months ended June 30, 2015 and 2014 because the effect would be antidilutive. The following weighted-average outstanding equity awards are not included in the diluted net income (loss) per share calculations above because they would have had an antidilutive effect on the net loss per share from continuing operations: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Stock options 1,986,295 2,871,939 2,060,915 3,052,703 Restricted stock units 43,168,136 43,983,986 40,612,765 42,075,003 Restricted stock 1,005,543 62,158 793,170 69,583 ESPP shares 837,123 697,244 729,180 560,058 Total 46,997,097 47,615,327 44,196,030 45,757,347

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION The Company organizes its operations into three segments: North America, EMEA and Rest of World. Segment operating results reflect earnings before stock-based compensation, acquisition-related expense (benefit), net, other expense, net and provision for income taxes. Segment information reported in the tables below represents the operating segments of the Company organized in a manner consistent with which separate information is available and for which segment results are evaluated regularly by the Company's chief operating decision-maker in assessing performance and allocating resources. Revenue and profit or loss information by reportable segment reconciled to consolidated net loss for the three and six months ended June 30, 2015 and 2014 were as follows (in thousands): . Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 North America Revenue (1) $ 481,282 $ 423,931 $ 961,164 $ 854,993 Segment cost of revenue and operating expenses (2) 454,413 409,386 909,629 829,063 Segment operating income (2) 26,869 14,545 51,535 25,930 EMEA Revenue (1) 204,047 227,690 420,267 458,583 Segment cost of revenue and operating expenses (2) 194,378 199,981 390,946 411,951 Segment operating income (2) 9,669 27,709 29,321 46,632 Rest of World Revenue 53,066 64,590 107,320 131,050 Segment cost of revenue and operating expenses (2) 59,858 74,133 118,260 152,569 Segment operating loss (2) (6,792 ) (9,543 ) (10,940 ) (21,519 ) Consolidated Revenue 738,395 716,211 1,488,751 1,444,626 Segment cost of revenue and operating expenses (2) 708,649 683,500 1,418,835 1,393,583 Segment operating income (2) 29,746 32,711 69,916 51,043 Stock-based compensation (3) 38,467 29,738 73,611 52,649 Acquisition-related expense, net 505 597 236 2,382 (Loss) income from operations (9,226 ) 2,376 (3,931 ) (3,988 ) Other income (expense), net 2,941 (1,023 ) (16,986 ) (1,863 ) (Loss) income from continuing operations before provision for income taxes (6,285 ) 1,353 (20,917 ) (5,851 ) Provision for income taxes 8,982 12,045 11,089 26,615 Loss from continuing operations (15,267 ) (10,692 ) (32,006 ) (32,466 ) Income (loss) from discontinued operations, net of tax 127,179 (10,230 ) 133,463 (23,819 ) Net income (loss) $ 111,912 $ (20,922 ) $ 101,457 $ (56,285 ) (1) North America includes revenue from the United States of $474.5 million and $413.2 million for the three months ended June 30, 2015 and 2014 , respectively, and $947.6 million and $833.1 million for the six months ended June 30, 2015 and 2014 , respectively. EMEA includes revenue from Switzerland of $113.7 million and $102.4 million for the three months ended June 30, 2015 and 2014 , respectively, and $231.2 million and $194.3 million for the six months ended June 30, 2015 and 2014 , respectively. There were no other individual countries that represented more than 10% of consolidated total revenue for the three and six months ended June 30, 2015 and 2014 . (2) Segment cost of revenue and operating expenses and segment operating income (loss) exclude stock-based compensation and acquisition-related (benefit) expense, net. This presentation corresponds to the measure of segment profit or loss that the Company's chief operating decision-maker uses in assessing segment performance and making resource allocation decisions. The table below summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the three and six months ended June 30, 2015 and 2014 (in thousands): (3) Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015 . Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related North America $ 34,031 $ 505 $ 26,206 $ 597 $ 65,283 $ 236 $ 45,686 $ 2,238 EMEA 2,793 — 2,227 — 5,440 — 4,500 144 Rest of World 1,661 — 1,305 — 2,906 — 2,463 — Consolidated $ 38,485 $ 505 $ 29,738 $ 597 $ 73,629 $ 236 $ 52,649 $ 2,382 Acquisition-related expense (benefit), net for the North America segment includes external transaction costs and gains and losses relating to contingent consideration obligations incurred by U.S. legal entities relating to purchases of businesses that became part of the EMEA and Rest of World segments, which is consistent with the attribution used for internal reporting purposes. The following table summarizes the Company's total assets by reportable segment as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 North America (1) $ 1,246,303 $ 1,150,417 EMEA 515,935 552,486 Rest of World 258,588 138,144 Assets held for sale (1) — 386,550 Consolidated total assets $ 2,020,826 $ 2,227,597 (1) North America contains assets from the United States of $1,213.7 million and $1,120.4 million as of June 30, 2015 and December 31, 2014 , respectively. Assets held for sale contains assets from the Republic of Korea of $386.6 million as of December 31, 2014 . There were no other individual countries that represented more than 10% of consolidated total assets as of June 30, 2015 and December 31, 2014 . Category Information The Company offers goods and services through its online local marketplaces in three primary categories: Local Deals ("Local"), Groupon Goods ("Goods") and Groupon Getaways ("Travel"). The Company also earns advertising revenue, payment processing revenue, point of sale revenue and commission revenue. Revenue and gross profit from these other sources, which are primarily generated through the Company's relationships with local and national merchants, are included within the Local category in the tables below. The following table summarizes the Company's third party and other and direct revenue from continuing operations by category for its three reportable segments for the three months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Three Months Ended Three Months Ended Three Months Ended Three Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 172,461 $ 164,500 $ 75,543 $ 96,485 $ 28,499 $ 37,018 $ 276,503 $ 298,003 Goods: Third party 1,671 1,399 9,702 16,845 11,549 16,153 22,922 34,397 Direct 285,192 240,227 105,702 98,568 6,655 4,912 397,549 343,707 Total 286,863 241,626 115,404 115,413 18,204 21,065 420,471 378,104 Travel: Third party 21,958 17,805 13,100 15,792 6,363 6,507 41,421 40,104 Total revenue $ 481,282 $ 423,931 $ 204,047 $ 227,690 $ 53,066 $ 64,590 $ 738,395 $ 716,211 (1) Includes revenue from deals with local and national merchants and through local events. The following table summarizes the Company's third party and other and direct revenue from continuing operations by category for its three reportable segments for the six months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Six Months Ended Six Months Ended Six Months Ended Six Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 353,325 $ 341,747 $ 158,079 $ 205,605 $ 58,780 $ 75,950 $ 570,184 $ 623,302 Goods: Third party 2,319 2,720 21,680 34,320 24,162 31,596 48,161 68,636 Direct 563,573 476,341 212,691 187,982 11,520 10,097 787,784 674,420 Total 565,892 479,061 234,371 222,302 35,682 41,693 835,945 743,056 Travel: Third party 41,947 34,185 27,817 30,676 12,858 13,407 82,622 78,268 Total revenue $ 961,164 $ 854,993 $ 420,267 $ 458,583 $ 107,320 $ 131,050 $ 1,488,751 $ 1,444,626 (1) Includes revenue from deals with local and national merchants and through local events. The following table summarizes the Company's gross profit from continuing operations by category for its three reportable segments for the three months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Three Months Ended Three Months Ended Three Months Ended Three Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 147,574 $ 142,674 $ 70,270 $ 90,373 $ 24,567 $ 31,997 $ 242,411 $ 265,044 Goods: Third party 1,408 1,128 7,779 14,990 6,367 8,398 15,554 24,516 Direct 29,190 21,833 14,099 20,442 417 388 43,706 42,663 Total 30,598 22,961 21,878 35,432 6,784 8,786 59,260 67,179 Travel: Third party 18,385 14,365 11,939 14,894 5,012 4,928 35,336 34,187 Total gross profit $ 196,557 $ 180,000 $ 104,087 $ 140,699 $ 36,363 $ 45,711 $ 337,007 $ 366,410 (1) Includes gross profit from deals with local and national merchants and through local events. The following table summarizes the Company's gross profit from continuing operations by category for its three reportable segments for the six months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Six Months Ended Six Months Ended Six Months Ended Six Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 302,350 $ 295,296 $ 147,626 $ 190,439 $ 50,728 $ 63,795 $ 500,704 $ 549,530 Goods: Third party 1,842 2,288 17,972 30,712 12,774 17,174 32,588 50,174 Direct 52,679 33,277 29,387 32,022 622 (1,024 ) 82,688 64,275 Total 54,521 35,565 47,359 62,734 13,396 16,150 115,276 114,449 Travel: Third party 34,176 28,807 24,339 28,563 9,918 10,573 68,433 67,943 Total gross profit $ 391,047 $ 359,668 $ 219,324 $ 281,736 $ 74,042 $ 90,518 $ 684,413 $ 731,922 (1) Includes gross profit from deals with local and national merchants and through local events.

Subsequent Events (Notes)

Subsequent Events (Notes)	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS OrderUp Acquisition On July 16, 2015, the Company acquired OrderUp, Inc. ("OrderUp") for total cash consideration of approximately $69.0 million and contingent consideration of up to $20.0 million , subject to the achievement of specified financial metrics and other conditions. OrderUp is an on-demand online and mobile food ordering and delivery marketplace based in the United States and will be reported within the Company’s North America segment beginning in the third quarter of 2015. The Company has not yet completed its valuation of the contingent consideration arrangement or its initial allocation of the acquisition price to the assets acquired and liabilities assumed as of the date of this filing. Groupon India Financing Transaction On August 6, 2015, the Company's subsidiary in India completed an equity financing transaction with a third party investor that obtained a majority voting interest in the entity. The Company did not receive any cash proceeds in connection with the transaction. Based on information currently available, the Company expects to recognize a pre-tax non-operating gain ranging from $13.0 million to $17.0 million , which will result from the remeasurement of the Company's retained investment in that entity to fair value upon deconsolidation. However, that estimate is subject to change upon completion of the valuation of that retained investment. Except for that non-operating gain, the deconsolidation of Groupon India will not have a significant impact on the Company's financial position or results of operations. The Company has made an irrevocable election to account for its retained investment in that entity at fair value with changes in fair value reported in earnings. Increase in Lease Commitments In July 2015, the Company entered into a new lease agreement that replaced the previous lease agreement for its corporate headquarters located in Chicago, Illinois. The new lease agreement extended the term to 10 years and 4 months and expanded the square footage. The net increase (decrease) in operating lease commitments over amounts under the previous lease agreement for each of the next five years and thereafter is as follows (in thousands): 2015 $ 428 2016 (595 ) 2017 3,405 2018 3,787 2019 8,107 Thereafter 77,176 Net increase in lease payments $ 92,308

Description of Business and B22

Description of Business and Basis of Presentation Description of Business, Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The Company's condensed consolidated financial statements were prepared in accordance with U.S. GAAP and include the assets, liabilities, revenue and expenses of all wholly-owned subsidiaries and majority-owned subsidiaries over which the Company exercises control and variable interest entities for which the Company has determined that it is the primary beneficiary. Outside stockholders' interests in subsidiaries are shown on the condensed consolidated financial statements as "Noncontrolling interests." Equity investments in entities in which the Company does not have a controlling financial interest are accounted for under the equity method, the cost method, the fair value option or as available-for-sale securities, as appropriate.
Reclassification	Reclassifications Certain reclassifications have been made to the condensed consolidated financial statements of prior periods and the accompanying notes to conform to the current period presentation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the condensed 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, customer refunds, contingent liabilities and the useful lives of property, equipment and software and intangible assets. Actual results could differ materially from those estimates.

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	The following table summarizes the major classes of line items included in income (loss) from discontinued operations, net of tax, for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 (1) 2014 2015 (1) 2014 Third party and other revenue $ 10,262 $ 33,437 $ 28,145 $ 62,164 Direct revenue 14,242 1,928 39,065 2,423 Third party and other cost of revenue (4,434 ) (9,621 ) (13,958 ) (18,170 ) Direct cost of revenue (12,082 ) (2,292 ) (38,031 ) (2,756 ) Marketing expense (3,472 ) (6,576 ) (8,495 ) (16,315 ) Selling, general and administrative expense (15,339 ) (27,106 ) (38,102 ) (51,165 ) Other income, net 35 — 96 — Loss from discontinued operations before gain on disposition and provision for income taxes (10,788 ) (10,230 ) (31,280 ) (23,819 ) Gain on disposition 202,158 — 202,158 — Provision for income taxes (64,191 ) — (37,415 ) — Income (loss) from discontinued operations, net of tax $ 127,179 $ (10,230 ) $ 133,463 $ (23,819 ) (1) The income from discontinued operations, net of tax, for the three and six months ended June 30, 2015 includes the results of Ticket Monster through the disposition date of May 27, 2015. The following table summarizes the carrying amounts of the major classes of assets and liabilities held for sale in the condensed consolidated balance sheet as of December 31, 2014 (in thousands): December 31, 2014 Cash $ 55,279 Accounts receivable, net 14,557 Deferred income taxes 512 Property, equipment and software, net 6,471 Goodwill 211,054 Intangible assets, net 79,948 Other assets 18,729 Assets classified as held for sale $ 386,550 Accounts payable $ 8,033 Accrued merchant and supplier payables 138,411 Accrued expenses 16,092 Deferred income taxes 512 Other liabilities 9,944 Liabilities classified as held for sale $ 172,992

Business Combinations (Tables)

Business Combinations (Tables)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition	The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $5.7 million , which consisted of the following (in thousands): Cash $ 5,461 Liability for purchase consideration 250 Total $ 5,711
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the aggregate purchase price of these acquisitions for the six months ended June 30, 2015 (in thousands): Net working capital deficit (including acquired cash of $2.3 million) $ (647 ) Goodwill 2,898 Intangible assets: (1) Subscriber relationships 1,016 Merchant relationships 809 Developed technology 1,339 Brand relationships 296 Total acquisition purchase price $ 5,711 (1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Goodwill and Other Intangible25

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	The following table summarizes the Company's goodwill activity by segment for six months ended June 30, 2015 (in thousands): North America EMEA Rest of World Consolidated Balance as of December 31, 2014 $ 116,718 $ 102,179 $ 17,859 $ 236,756 Goodwill related to acquisitions 1,949 — 949 2,898 Foreign currency translation (36 ) (7,106 ) (1,051 ) (8,193 ) Balance as of June 30, 2015 $ 118,631 $ 95,073 $ 17,757 $ 231,461
Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]	The following tables summarize the Company's intangible assets (in thousands): June 30, 2015 Asset Category Gross Carrying Value Accumulated Amortization Net Carrying Value Subscriber relationships $ 47,519 $ 41,075 $ 6,444 Merchant relationships 8,705 7,903 802 Trade names 10,247 6,995 3,252 Developed technology 26,059 22,608 3,451 Brand relationships 7,960 2,277 5,683 Other intangible assets 16,739 12,525 4,214 Total $ 117,229 $ 93,383 $ 23,846 December 31, 2014 Asset Category Gross Carrying Value Accumulated Amortization Net Carrying Value Subscriber relationships $ 48,810 $ 37,744 $ 11,066 Merchant relationships 8,386 8,323 63 Trade names 10,532 6,935 3,597 Developed technology 25,352 21,713 3,639 Brand relationships 7,664 1,486 6,178 Other intangible assets 17,045 10,979 6,066 Total $ 117,789 $ 87,180 $ 30,609
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	As of June 30, 2015 , the Company's estimated future amortization expense related to intangible assets is as follows (in thousands): Remaining amounts in 2015 $ 6,915 2016 9,339 2017 4,340 2018 3,103 2019 144 Thereafter 5 Total $ 23,846

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, All Other Investments [Abstract]
Schedule of Cost and Equity Method Investments	The following table summarizes the Company's investments (dollars in thousands): June 30, 2015 Percent Ownership of Voting Stock December 31, 2014 Percent Ownership of Voting Stock Cost method, equity method and fair value option investments: Cost method investments $ 14,586 6% to 19% $ 15,630 6% to 19% Equity method investments — 21% 1,231 21% to 50% Fair value option investment 122,525 48% — Total cost method, equity method and fair value option investments 137,111 16,861 Available-for-sale securities: Convertible debt securities 8,026 2,527 Redeemable preferred shares 4,881 17% to 19% 4,910 17% to 19% Total available-for-sale securities 12,907 7,437 Total investments $ 150,018 $ 24,298
Schedule of Available-for-sale Securities Reconciliation	The following table summarizes the amortized cost, gross unrealized gain, gross unrealized loss and fair value of the Company's available-for-sale securities as of June 30, 2015 and December 31, 2014 , respectively (in thousands): June 30, 2015 December 31, 2014 Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value Amortized Cost Gross Unrealized Gain Gross Unrealized Loss Fair Value Available-for-sale securities: Convertible debt securities $ 7,217 $ 809 $ — $ 8,026 $ 2,030 $ 497 $ — $ 2,527 Redeemable preferred shares 4,599 282 — 4,881 4,599 311 — 4,910 Total available-for-sale securities $ 11,816 $ 1,091 $ — $ 12,907 $ 6,629 $ 808 $ — $ 7,437
Monster LP Financial Information	The following table summarizes the condensed consolidated financial information for Monster LP (in thousands): Period from May 28, 2015 through June 30, 2015 (1) Revenue $ 14,110 Gross profit 4,338 Loss before income taxes (8,339 ) Net loss (8,339 ) June 30, 2015 Current assets $ 146,960 Non-current assets 512,766 Current liabilities 186,792 Non-current liabilities 7,277 (1) The summarized financial information is presented for the period beginning May 28, 2015, after completion of the Ticket Monster disposition transaction that resulted in the Company obtaining its minority limited partner interest in Monster LP.

Supplemental Consolidated Bal27

Supplemental Consolidated Balance Sheet and Statement of Operations Information (Tables)	6 Months Ended
	Jun. 30, 2015
SUPPLEMENTAL CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS INFORMATION [Abstract]
Schedule of Other Income (Expense)	The following table summarizes the Company's other income (expense), net for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Interest income $ 330 $ 418 $ 557 $ 796 Interest expense (473 ) (134 ) (1,143 ) (221 ) Impairments of investments — (191 ) — (588 ) Loss on equity method investments — (420 ) — (368 ) Gain on changes in fair value of investment 450 — 450 — Foreign currency gains (losses), net (1) 2,532 (724 ) (16,965 ) (1,473 ) Other 102 28 115 (9 ) Other income (expense), net $ 2,941 $ (1,023 ) $ (16,986 ) $ (1,863 ) (1) Foreign currency gains (losses), net for the three and six months ended June 30, 2015 includes a $4.4 million loss related to the cumulative translation adjustment from the Company's legacy business in the Republic of Korea that was reclassified to earnings as a result of the Ticket Monster disposition.
Schedule of Prepaid Expenses and Other Current Assets	The following table summarizes the Company's prepaid expenses and other current assets as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Unamortized tax effects on intercompany transactions $ 4,204 $ 14,170 Finished goods inventories 48,480 52,237 Prepaid expenses 47,782 32,758 Restricted cash 6,677 10,852 Income taxes receivable 34,574 41,769 VAT receivable 12,616 17,746 Prepaid marketing 5,691 7,413 Other 13,422 15,437 Total prepaid expenses and other current assets $ 173,446 $ 192,382
Schedule of Accrued Merchant and Supplier Payables	The following table summarizes the Company's accrued merchant and supplier payables as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Accrued merchant payables $ 485,221 $ 499,317 Accrued supplier payables (1) 214,544 272,839 Total accrued merchant and supplier payables $ 699,765 $ 772,156 (1) Amounts include payables to suppliers of inventories and providers of shipping and fulfillment services.
Schedule of Accrued Expenses	The following table summarizes the Company's accrued expenses as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Marketing $ 17,531 $ 15,962 Refunds reserve 29,263 32,535 Payroll and benefits 51,407 59,802 Customer credits 34,333 42,729 Professional fees 21,590 14,254 Other 65,924 48,978 Total accrued expenses $ 220,048 $ 214,260
Schedule of Other Current Liabilities	The following table summarizes the Company's other current liabilities as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Income taxes payable $ 9,765 $ 14,461 VAT payable 20,752 30,778 Sales taxes payable 5,742 9,042 Deferred revenue 50,911 46,344 Capital lease obligations 15,754 14,872 Other 20,168 11,624 Total other current liabilities $ 123,092 $ 127,121
Schedule of Other Liabilities, Noncurrent	The following table summarizes the Company's other non-current liabilities as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Long-term tax liabilities $ 91,828 $ 82,138 Deferred rent 13,017 13,200 Capital lease obligations 17,251 23,387 Other 7,908 10,806 Total other non-current liabilities $ 130,004 $ 129,531
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the components of accumulated other comprehensive income as of June 30, 2015 and December 31, 2014 (in thousands): Foreign currency translation adjustments Unrealized gain (loss) on available-for-sale securities Pension adjustments Total Balance as of December 31, 2014 $ 36,764 $ 499 $ (1,500 ) $ 35,763 Other comprehensive income 19,696 176 53 19,925 Balance at June 30, 2015 $ 56,460 $ 675 $ (1,447 ) $ 55,688

Stockholders' Equity and Comp28

Stockholders' Equity and Compensation Arrangements Share - Based Compensation Activity (Tables)	6 Months Ended
	Jun. 30, 2015
Share - Based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	The table below summarizes the stock option activity for the six months ended June 30, 2015 : Options Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2014 2,262,994 $ 1.09 5.03 $ 16,226 Exercised (398,720 ) $ 0.94 Forfeited (902 ) $ 2.48 Outstanding at June 30, 2015 1,863,372 $ 1.12 4.55 $ 7,286 Exercisable at June 30, 2015 1,863,372 $ 1.12 4.55 $ 7,286 (1) The aggregate intrinsic value of options outstanding and exercisable represents the total pretax intrinsic value (the difference between the fair value of the Company's stock on the last day of each period and the exercise price, multiplied by the number of options where the fair value exceeds the exercise price) that would have been received by the option holders had all option holders exercised their options as of June 30, 2015 and December 31, 2014 , respectively.
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	for the six months ended June 30, 2015 : Restricted Stock Units Weighted- Average Grant Date Fair Value (per share) Unvested at December 31, 2014 41,337,927 $ 7.78 Granted 18,480,855 $ 7.10 Vested (12,345,592 ) $ 7.93 Forfeited (4,242,851 ) $ 8.00 Unvested at June 30, 2015 43,230,339 $ 7.42
Schedule of Nonvested Restricted Stock Units Activity	The table below summarizes activity regarding unvested restricted stock for the six months ended June 30, 2015 : Restricted Stock Awards Weighted- Average Grant Date Fair Value (per share) Unvested at December 31, 2014 34,067 $ 15.53 Granted 984,843 $ 7.42 Vested (34,067 ) $ 15.53 Forfeited — $ — Unvested at June 30, 2015 984,843 $ 7.42

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables summarize the Company's assets and liabilities that are measured at fair value on a recurring basis (in thousands): Fair Value Measurement at Reporting Date Using Description June 30, 2015 Quoted Prices in Active Markets for Significant Other Significant Assets: Cash equivalents $ 490,635 $ 490,635 $ — $ — Fair value option investment 122,525 — — 122,525 Available-for-sale securities: Convertible debt securities 8,026 — — 8,026 Redeemable preferred shares 4,881 — — 4,881 Liabilities: Contingent consideration 233 — — 233 Fair Value Measurement at Reporting Date Using Description December 31, 2014 Quoted Prices in Active Markets for Significant Other Significant Assets: Cash equivalents $ 440,596 $ 440,596 $ — $ — Available-for-sale securities: Convertible debt securities 2,527 — — 2,527 Redeemable preferred shares 4,910 — — 4,910 Liabilities: Contingent consideration 1,983 — — 1,983
Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs [Table Text Block]	The following table provides a roll-forward of the fair value of recurring Level 3 fair value measurements for the three and six months ended June 30, 2015 and 2014 (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Assets Fair value option investment: Beginning Balance $ — $ — $ — $ — Acquisition of investment in Monster LP 122,075 — 122,075 — Total gains (losses) included in earnings 450 — 450 — Ending Balance $ 122,525 $ — $ 122,525 $ — Unrealized gains (losses) still held (1) $ 450 $ — $ 450 $ — Available-for-sale securities Convertible debt securities: Beginning Balance $ 2,757 $ 2,693 $ 2,527 $ 3,174 Purchase of convertible debt security 5,000 — 5,000 — Total gains (losses) included in other comprehensive income 82 (63 ) 312 (544 ) Total gains (losses) included in other income (expense), net (2) 187 $ — 187 $ — Ending Balance $ 8,026 $ 2,630 $ 8,026 $ 2,630 Unrealized gains (losses) still held (1) $ 269 $ (63 ) $ 499 $ (544 ) Redeemable preferred shares: Beginning Balance $ 4,900 $ 4,599 $ 4,910 $ — Purchase of redeemable preferred shares — — — 4,599 Total (losses) gains included in other comprehensive income (19 ) (55 ) (29 ) (55 ) Ending Balance $ 4,881 $ 4,544 $ 4,881 $ 4,544 Unrealized (losses) gains still held (1) $ (19 ) $ (55 ) $ (29 ) $ (55 ) Liabilities Contingent Consideration: Beginning Balance $ 1,373 $ — $ 1,983 $ 606 Issuance of contingent consideration in connection with acquisitions — 4,006 — 4,006 Settlements of contingent consideration liabilities (716 ) — (716 ) (424 ) Reclass to non-fair value liabilities when no longer contingent — — (331 ) (143 ) Total gains included in earnings (3) (424 ) — (703 ) (39 ) Ending Balance $ 233 $ 4,006 $ 233 $ 4,006 Unrealized (gains) losses still held (1) $ (857 ) $ — $ (1,091 ) $ — (1) Represents the unrealized losses or gains recorded in earnings and/or other comprehensive income (loss) during the period for assets and liabilities classified as Level 3 that are still held (or outstanding) at the end of the period. (2) Represents accretion of interest income and changes in the fair value of an embedded derivative. (3) Changes in the fair value of contingent consideration liabilities are classified within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations.
Fair Value of Financial Assets and Liabilities not Measured at Fair Value	The following table presents the carrying amounts and fair values of financial instruments that are not carried at fair value in the consolidated financial statements (in thousands): June 30, 2015 December 31, 2014 Carrying Amount Fair Value Carrying Amount Fair Value Cost method investments $ 14,586 $ 14,884 $ 15,630 $ 16,134

Income (Loss) Per Share of Cl30

Income (Loss) Per Share of Class A and Class B Common Stock (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted net income (loss) per share of Class A and Class B common stock for the three and six months ended June 30, 2015 and 2014 (in thousands, except share amounts and per share amounts): Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Class A Class B Class A Class B Class A Class B Class A Class B Basic net income (loss) per share: Numerator Allocation of net loss - continuing operations $ (15,211 ) $ (56 ) $ (10,653 ) $ (39 ) $ (31,892 ) $ (114 ) $ (32,351 ) $ (115 ) Less: Allocation of net income attributable to noncontrolling interests 2,818 10 1,946 7 6,622 24 4,369 16 Allocation of net loss attributable to common stockholders - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Allocation of net income (loss) attributable to common stockholders - discontinued operations 126,725 454 (10,193 ) (37 ) 132,986 477 (23,734 ) (85 ) Allocation of net loss attributable to common stockholders $ 108,696 $ 388 $ (22,792 ) $ (83 ) $ 94,472 $ 339 $ (60,454 ) $ (216 ) Denominator Weighted-average common shares outstanding 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Basic net income (loss) per share: Continuing operations $ (0.03 ) $ (0.03 ) $ (0.02 ) $ (0.02 ) $ (0.06 ) $ (0.06 ) $ (0.05 ) $ (0.05 ) Discontinued operations 0.19 0.19 (0.01 ) (0.01 ) 0.20 0.20 (0.04 ) (0.04 ) Basic net income (loss) per share $ 0.16 $ 0.16 $ (0.03 ) $ (0.03 ) $ 0.14 $ 0.14 $ (0.09 ) $ (0.09 ) Diluted net income (loss) per share: Numerator Allocation of net loss attributable to common stockholders for basic computation - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Reallocation of net income (loss) attributable to common stockholders as a result of conversion of Class B (1) — — — — — — — — Allocation of net loss attributable to common stockholders - continuing operations $ (18,029 ) $ (66 ) $ (12,599 ) $ (46 ) $ (38,514 ) $ (138 ) $ (36,720 ) $ (131 ) Allocation of net income (loss) attributable to common stockholders for basic computation - discontinued operations $ 126,725 $ 454 $ (10,193 ) $ (37 ) $ 132,986 $ 477 $ (23,734 ) $ (85 ) Reallocation of net income (loss) attributable to common stockholders as a result of conversion of Class B (1) — — — — — — — — Allocation of net loss attributable to common stockholders - discontinued operations 126,725 454 (10,193 ) (37 ) 132,986 477 (23,734 ) (85 ) Allocation of net loss attributable to common stockholders $ 108,696 $ 388 $ (22,792 ) $ (83 ) $ 94,472 $ 339 $ (60,454 ) $ (216 ) Denominator Weighted-average common shares outstanding used in basic computation 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Conversion of Class B (1) — — — — — — — — Employee stock options (1) — — — — — — — — Restricted shares and RSUs (1) — — — — — — — — Weighted-average diluted shares outstanding (1) 669,230,193 2,399,976 673,138,416 2,399,976 671,606,577 2,399,976 676,558,565 2,399,976 Diluted net income (loss) per share: Continuing operations $ (0.03 ) $ (0.03 ) $ (0.02 ) $ (0.02 ) $ (0.06 ) $ (0.06 ) $ (0.05 ) $ (0.05 ) Discontinued operations 0.19 0.19 (0.01 ) (0.01 ) 0.20 0.20 (0.04 ) (0.04 ) Diluted net income (loss) per share $ 0.16 $ 0.16 $ (0.03 ) $ (0.03 ) $ 0.14 $ 0.14 $ (0.09 ) $ (0.09 ) (1) Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted net loss per share calculation for the three and six months ended June 30, 2015 and 2014 because the effect would be antidilutive.
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following weighted-average outstanding equity awards are not included in the diluted net income (loss) per share calculations above because they would have had an antidilutive effect on the net loss per share from continuing operations: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Stock options 1,986,295 2,871,939 2,060,915 3,052,703 Restricted stock units 43,168,136 43,983,986 40,612,765 42,075,003 Restricted stock 1,005,543 62,158 793,170 69,583 ESPP shares 837,123 697,244 729,180 560,058 Total 46,997,097 47,615,327 44,196,030 45,757,347

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Revenue and profit or loss information by reportable segment reconciled to consolidated net loss for the three and six months ended June 30, 2015 and 2014 were as follows (in thousands): . Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 North America Revenue (1) $ 481,282 $ 423,931 $ 961,164 $ 854,993 Segment cost of revenue and operating expenses (2) 454,413 409,386 909,629 829,063 Segment operating income (2) 26,869 14,545 51,535 25,930 EMEA Revenue (1) 204,047 227,690 420,267 458,583 Segment cost of revenue and operating expenses (2) 194,378 199,981 390,946 411,951 Segment operating income (2) 9,669 27,709 29,321 46,632 Rest of World Revenue 53,066 64,590 107,320 131,050 Segment cost of revenue and operating expenses (2) 59,858 74,133 118,260 152,569 Segment operating loss (2) (6,792 ) (9,543 ) (10,940 ) (21,519 ) Consolidated Revenue 738,395 716,211 1,488,751 1,444,626 Segment cost of revenue and operating expenses (2) 708,649 683,500 1,418,835 1,393,583 Segment operating income (2) 29,746 32,711 69,916 51,043 Stock-based compensation (3) 38,467 29,738 73,611 52,649 Acquisition-related expense, net 505 597 236 2,382 (Loss) income from operations (9,226 ) 2,376 (3,931 ) (3,988 ) Other income (expense), net 2,941 (1,023 ) (16,986 ) (1,863 ) (Loss) income from continuing operations before provision for income taxes (6,285 ) 1,353 (20,917 ) (5,851 ) Provision for income taxes 8,982 12,045 11,089 26,615 Loss from continuing operations (15,267 ) (10,692 ) (32,006 ) (32,466 ) Income (loss) from discontinued operations, net of tax 127,179 (10,230 ) 133,463 (23,819 ) Net income (loss) $ 111,912 $ (20,922 ) $ 101,457 $ (56,285 ) (1) North America includes revenue from the United States of $474.5 million and $413.2 million for the three months ended June 30, 2015 and 2014 , respectively, and $947.6 million and $833.1 million for the six months ended June 30, 2015 and 2014 , respectively. EMEA includes revenue from Switzerland of $113.7 million and $102.4 million for the three months ended June 30, 2015 and 2014 , respectively, and $231.2 million and $194.3 million for the six months ended June 30, 2015 and 2014 , respectively. There were no other individual countries that represented more than 10% of consolidated total revenue for the three and six months ended June 30, 2015 and 2014 . (2) Segment cost of revenue and operating expenses and segment operating income (loss) exclude stock-based compensation and acquisition-related (benefit) expense, net. This presentation corresponds to the measure of segment profit or loss that the Company's chief operating decision-maker uses in assessing segment performance and making resource allocation decisions. The table below summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the three and six months ended June 30, 2015 and 2014 (in thousands): (3) Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015 .
Stock Based Compensation and Acquisition Related by Segment	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related North America $ 34,031 $ 505 $ 26,206 $ 597 $ 65,283 $ 236 $ 45,686 $ 2,238 EMEA 2,793 — 2,227 — 5,440 — 4,500 144 Rest of World 1,661 — 1,305 — 2,906 — 2,463 — Consolidated $ 38,485 $ 505 $ 29,738 $ 597 $ 73,629 $ 236 $ 52,649 $ 2,382 Acquisition-related expense (benefit), net for the North America segment includes external transaction costs and gains and losses relating to contingent consideration obligations incurred by U.S. legal entities relating to purchases of businesses that became part of the EMEA and Rest of World segments, which is consistent with the attribution used for internal reporting purposes.
Schedule of Segment Assets	The following table summarizes the Company's total assets by reportable segment as of June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 North America (1) $ 1,246,303 $ 1,150,417 EMEA 515,935 552,486 Rest of World 258,588 138,144 Assets held for sale (1) — 386,550 Consolidated total assets $ 2,020,826 $ 2,227,597 (1) North America contains assets from the United States of $1,213.7 million and $1,120.4 million as of June 30, 2015 and December 31, 2014 , respectively. Assets held for sale contains assets from the Republic of Korea of $386.6 million as of December 31, 2014 . There were no other individual countries that represented more than 10% of consolidated total assets as of June 30, 2015 and
Third Party and Other and Direct Revenue	The following table summarizes the Company's third party and other and direct revenue from continuing operations by category for its three reportable segments for the three months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Three Months Ended Three Months Ended Three Months Ended Three Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 172,461 $ 164,500 $ 75,543 $ 96,485 $ 28,499 $ 37,018 $ 276,503 $ 298,003 Goods: Third party 1,671 1,399 9,702 16,845 11,549 16,153 22,922 34,397 Direct 285,192 240,227 105,702 98,568 6,655 4,912 397,549 343,707 Total 286,863 241,626 115,404 115,413 18,204 21,065 420,471 378,104 Travel: Third party 21,958 17,805 13,100 15,792 6,363 6,507 41,421 40,104 Total revenue $ 481,282 $ 423,931 $ 204,047 $ 227,690 $ 53,066 $ 64,590 $ 738,395 $ 716,211 (1) Includes revenue from deals with local and national merchants and through local events. The following table summarizes the Company's third party and other and direct revenue from continuing operations by category for its three reportable segments for the six months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Six Months Ended Six Months Ended Six Months Ended Six Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 353,325 $ 341,747 $ 158,079 $ 205,605 $ 58,780 $ 75,950 $ 570,184 $ 623,302 Goods: Third party 2,319 2,720 21,680 34,320 24,162 31,596 48,161 68,636 Direct 563,573 476,341 212,691 187,982 11,520 10,097 787,784 674,420 Total 565,892 479,061 234,371 222,302 35,682 41,693 835,945 743,056 Travel: Third party 41,947 34,185 27,817 30,676 12,858 13,407 82,622 78,268 Total revenue $ 961,164 $ 854,993 $ 420,267 $ 458,583 $ 107,320 $ 131,050 $ 1,488,751 $ 1,444,626 (1) Includes revenue from deals with local and national merchants and through local events.
Gross Profit by Category	The following table summarizes the Company's gross profit from continuing operations by category for its three reportable segments for the six months ended June 30, 2015 and 2014 (in thousands): North America EMEA Rest of World Consolidated Six Months Ended Six Months Ended Six Months Ended Six Months Ended 2015 2014 2015 2014 2015 2014 2015 2014 Local (1) : Third party and other $ 302,350 $ 295,296 $ 147,626 $ 190,439 $ 50,728 $ 63,795 $ 500,704 $ 549,530 Goods: Third party 1,842 2,288 17,972 30,712 12,774 17,174 32,588 50,174 Direct 52,679 33,277 29,387 32,022 622 (1,024 ) 82,688 64,275 Total 54,521 35,565 47,359 62,734 13,396 16,150 115,276 114,449 Travel: Third party 34,176 28,807 24,339 28,563 9,918 10,573 68,433 67,943 Total gross profit $ 391,047 $ 359,668 $ 219,324 $ 281,736 $ 74,042 $ 90,518 $ 684,413 $ 731,922 (1) Includes gross profit from deals with local and national merchants and through local events.

Subsequent Events Lease Extensi

Subsequent Events Lease Extension (Tables)	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Operating Leases of Lessee Disclosure	The net increase (decrease) in operating lease commitments over amounts under the previous lease agreement for each of the next five years and thereafter is as follows (in thousands): 2015 $ 428 2016 (595 ) 2017 3,405 2018 3,787 2019 8,107 Thereafter 77,176 Net increase in lease payments $ 92,308

Description of Business and B33

Description of Business and Basis of Presentation Business Combination (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 5,711
Cash	$ 5,461
LivingSocial Korea, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 259,400
Cash		96,500
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable		$ 162,900

Discontinued Operations Sale of

Discontinued Operations Sale of TMON (Details) - USD ($) $ in Thousands	May. 27, 2015	Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014	Mar. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on Disposition of Business		$ 202,158	[1]	$ 0	$ 202,158	[1]	$ 0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		138,000
Consideration received upon divestiture of a consolidated subsidiary	$ 398,800
Proceeds from Divestiture of Interest in Consolidated Subsidiaries		285,000
Noncash or Part Noncash Acquisition, Investments Acquired					122,075		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		122,525			122,525			$ 122,075	$ 122,075
Professional Fees	8,300
Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax		$ (12,313)		$ 0	$ (12,313)		$ 0
Ticket Monster [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net book value	$ 184,300
[1]	The income from discontinued operations, net of tax, for the three and six months ended June 30, 2015 includes the results of Ticket Monster through the disposition date of May 27, 2015.

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended					6 Months Ended
		Jun. 30, 2015		Mar. 31, 2015	[1]	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 202,158	[1]			$ 0	$ 202,158	[1]	$ 0
Disposal Group Income Statement [Abstract]
Third party and other revenue		340,846				372,504	700,967		770,206
Direct revenue		397,549				343,707	787,784		674,420
Third party and other cost of revenue		(47,545)				(48,757)	(99,242)		(102,559)
Direct cost of revenue		(353,843)				(301,044)	(705,096)		(610,145)
Marketing expense		(57,007)				(57,699)	(109,540)		(126,884)
Selling, general and administrative expense		(288,721)				(305,738)	(578,568)		(606,644)
Other income, net		(2,941)				1,023	16,986		1,863
Loss from discontinued operations before provision for income taxes		(10,788)	[1]			(10,230)	(31,280)	[1]	(23,819)
Benefit from income taxes		(64,191)	[1]	$ (26,800)		0	(37,415)	[1]	0
Income (loss) from discontinued operations, net of tax		127,179	[1]			(10,230)	133,463	[1]	(23,819)
Disposal Group Balance Sheet [Abstract]
Cash and cash equivalents										$ 55,279
Accounts receivable, net										14,557
Deferred income taxes										512
Property, equipment and software, net										6,471
Goodwill										211,054
Intangible assets, net										79,948
Other assets										18,729
Assets classified as held for sale	[2]	0					0			386,550
Accounts payable										8,033
Accrued merchant and supplier payables										138,411
Accrued expenses										16,092
Deferred income taxes										512
Other liabilities										9,944
Liabilities classified as held for sale										$ 172,992
Discontinued Operations, Disposed of by Sale [Member]
Disposal Group Income Statement [Abstract]
Third party and other revenue		10,262	[1]			33,437	28,145	[1]	62,164
Direct revenue		14,242	[1]			1,928	39,065	[1]	2,423
Third party and other cost of revenue		(4,434)	[1]			(9,621)	(13,958)	[1]	(18,170)
Direct cost of revenue		(12,082)	[1]			(2,292)	(38,031)	[1]	(2,756)
Marketing expense		(3,472)	[1]			(6,576)	(8,495)	[1]	(16,315)
Selling, general and administrative expense		(15,339)	[1]			(27,106)	(38,102)	[1]	(51,165)
Other income, net		$ 35	[1]			$ 0	$ 96	[1]	$ 0
[1]	The income from discontinued operations, net of tax, for the three and six months ended June 30, 2015 includes the results of Ticket Monster through the disposition date of May 27, 2015.
[2]	North America contains assets from the United States of $1,213.7 million and $1,120.4 million as of June 30, 2015 and December 31, 2014, respectively. Assets held for sale contains assets from the Republic of Korea of $386.6 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of June 30, 2015 and December 31, 2014

Business Combinations (Details)

Business Combinations (Details) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2015USD ($)	Jun. 30, 2015USD ($)business	Dec. 31, 2014USD ($)
Business Acquisition [Line Items]
Number of Businesses Acquired | business			4
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed		$ 900	$ 900
Business Combination, Consideration Transferred			5,711
Business Combination, Consideration Transferred [Abstract]
Cash			5,461
Contingent consideration			250
Business Combination, Consideration Transferred			5,711
Aggregate Purchase Price - Business Combinations [Abstract]
Net working capital deficit (including acquired cash of $2.3 million)		(647)	(647)
Cash acquired		2,300	2,300
Goodwill		231,461	231,461	$ 236,756
Business Combination, Consideration Transferred			5,711
Series of Individually Immaterial Business Acquisitions [Member]
Aggregate Purchase Price - Business Combinations [Abstract]
Goodwill		2,898	2,898
Customer Relationships [Member]
Aggregate Purchase Price - Business Combinations [Abstract]
Intangible Assets	[1]	1,016	1,016
Merchant relationships [Member]
Aggregate Purchase Price - Business Combinations [Abstract]
Intangible Assets	[1]	809	809
Developed Technology [Member]
Aggregate Purchase Price - Business Combinations [Abstract]
Intangible Assets	[1]	1,339	1,339
Brand Relationships [Member]
Aggregate Purchase Price - Business Combinations [Abstract]
Intangible Assets	[1]	$ 296	$ 296
Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			1 year
Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			5 years
[1]	Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Goodwill and Other Intangible37

Goodwill and Other Intangible Assets Goodwill Activity by Segment (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 236,756
Goodwill, related to acquisitions	2,898
Foreign currency translation	(8,193)
Goodwill, end of period	231,461
North America [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	116,718
Goodwill, related to acquisitions	1,949
Foreign currency translation	(36)
Goodwill, end of period	118,631
EMEA [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	102,179
Goodwill, related to acquisitions	0
Foreign currency translation	(7,106)
Goodwill, end of period	95,073
ROW [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	17,859
Goodwill, related to acquisitions	949
Foreign currency translation	(1,051)
Goodwill, end of period	$ 17,757

Goodwill and Other Intangible38

Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	$ 117,229	$ 117,789
Accumulated Amortization, Intangible Assets	93,383	87,180
Net Carrying Value, Intangible Assets	23,846	30,609
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	47,519	48,810
Accumulated Amortization, Intangible Assets	41,075	37,744
Net Carrying Value, Intangible Assets	6,444	11,066
Merchant relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	8,705	8,386
Accumulated Amortization, Intangible Assets	7,903	8,323
Net Carrying Value, Intangible Assets	802	63
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	10,247	10,532
Accumulated Amortization, Intangible Assets	6,995	6,935
Net Carrying Value, Intangible Assets	3,252	3,597
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	26,059	25,352
Accumulated Amortization, Intangible Assets	22,608	21,713
Net Carrying Value, Intangible Assets	3,451	3,639
Brand Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	7,960	7,664
Accumulated Amortization, Intangible Assets	2,277	1,486
Net Carrying Value, Intangible Assets	5,683	6,178
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	16,739	17,045
Accumulated Amortization, Intangible Assets	12,525	10,979
Net Carrying Value, Intangible Assets	$ 4,214	$ 6,066

Goodwill and Other Intangible39

Goodwill and Other Intangible Assets Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 3,900	$ 5,100	$ 9,806	$ 11,081
Finite-Lived Intangible Assets, Net, Amortization Expense [Abstract]
Remaining amounts in 2015	6,915		6,915
2,016	9,339		9,339
2,017	4,340		4,340
2,018	3,103		3,103
2,019	144		144
Thereafter	5		5
Total	$ 23,846		$ 23,846
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			1 year
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			5 years

Investments Investments Table (

Investments Investments Table (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value Measurement [Domain]
Schedule of Cost and Equity Method Investments [Line Items]
Equity method investments	$ 122,525	$ 0
Fair Value Measurement [Domain] | Maximum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method Investments, Ownership Percentage
Fair Value Measurement [Domain] | Minimum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method Investments, Ownership Percentage	48.00%
Cost method investments	$ 14,586	$ 15,630
Equity method investments	0	1,231
Total cost and equity method investments	137,111	16,861
Available-for-sale securities	12,907	7,437
Total investments	$ 150,018	$ 24,298
Maximum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method Investments, Ownership Percentage		50.00%
Available-for-Sale Securities, Ownership Percentage	19.00%	19.00%
Minimum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method Investments, Ownership Percentage	21.00%	21.00%
Available-for-Sale Securities, Ownership Percentage	17.00%	17.00%
Cost-method Investments [Member] | Maximum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method Investments, Ownership Percentage	19.00%	19.00%
Cost-method Investments [Member] | Minimum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method Investments, Ownership Percentage	6.00%	6.00%
Convertible debt securities [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Available-for-sale securities	$ 8,026	$ 2,527
Redeemable preferred shares [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Available-for-sale securities	$ 4,881	$ 4,910

Investments Available-for-sale

Investments Available-for-sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Investments, cost and equity method	$ 137,111	$ 16,861
Available-for-sale Securities, Amortized Cost Basis	11,816	6,629
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	1,091	808
Available-for-sale securities	12,907	7,437
Convertible debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	7,217	2,030
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	809	497
Available-for-sale securities	8,026	2,527
Redeemable preferred shares [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	4,599	4,599
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	282	311
Available-for-sale securities	$ 4,881	$ 4,910
Minimum [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Method Investment, Ownership Percentage	21.00%	21.00%
AFS Debt Security, Ownership Percentage	17.00%	17.00%
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Method Investment, Ownership Percentage		50.00%
AFS Debt Security, Ownership Percentage	19.00%	19.00%

Investments Equity Method Inves

Investments Equity Method Investment (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Gain (Loss) on Investments [Line Items]
Total revenue		$ 738,395	$ 716,211	$ 1,488,751	$ 1,444,626
Gross Profit		337,007	$ 366,410	684,413	$ 731,922
Total current assets		1,397,367		1,397,367		$ 1,401,329
Other Assets, Noncurrent		20,489		20,489		16,173
Total current liabilities		1,088,993		1,088,993		1,325,596
Liabilities, Noncurrent		130,004		130,004		$ 129,531
Monster LP [Member]
Gain (Loss) on Investments [Line Items]
Total revenue	[1]	14,110
Gross Profit	[1]	4,338
Loss before income taxes	[1]	(8,339)
Net loss	[1]	(8,339)
Total current assets		146,960		146,960
Other Assets, Noncurrent		512,766		512,766
Total current liabilities		186,792		186,792
Liabilities, Noncurrent		$ 7,277		$ 7,277
[1]	The summarized financial information is presented for the period beginning May 28, 2015, after completion of the Ticket Monster disposition transaction that resulted in the Company obtaining its minority limited partner interest in Monster LP.

Investments Investments in Mons

Investments Investments in Monster LP (Details) - USD ($) $ in Thousands	May. 27, 2015	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015	Dec. 31, 2014
Schedule of Investments [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value			$ 122,525		$ 122,525		$ 122,075	$ 122,075
Noncash or Part Noncash Acquisition, Investments Acquired					122,075	$ 0
Fair Value, Option, Changes in Fair Value, Gain (Loss)			$ 450	$ 0	$ 450	$ 0
Capital Unit, Class A [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Proceeds from Sale of Interest in Partnership Unit	$ 350,000
Partners' Capital Account, Units, Sale of Units	70,000,000
Capital Unit, Class B [Member]
Schedule of Investments [Line Items]
Partners' Capital Account, Units, Sale of Units	64,000,000
Capital Unit, Class B [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Proceeds from Sale of Interest in Partnership Unit	$ 285,000
Capital Units, Class C [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Stock or Units Available for Distributions	20,321,839
Scenario, Forecast [Member] | Capital Unit, Class A [Member]
Schedule of Investments [Line Items]
Proceeds from Sale of Interest in Partnership Unit		$ 10,000
Partners' Capital Account, Units, Sale of Units		2,000,000
Minimum [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	$ 1,116,000
Minimum [Member] | Capital Unit, Class A [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	$ 486,000
Monster LP [Member]
Schedule of Investments [Line Items]
Fair Value Assumptions, Expected Volatility Rate	60.00%
Fair Value Assumptions, Risk Free Interest Rate	1.30%
First Tier [Member] | Minimum [Member] | Capital Unit, Class B [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	$ 486,000
First Tier [Member] | Maximum [Member] | Capital Unit, Class B [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	680,000
Second Tier [Member] | Minimum [Member] | Capital Unit, Class B [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	703,000
Second Tier [Member] | Maximum [Member] | Capital Unit, Class B [Member] | Monster LP [Member]
Schedule of Investments [Line Items]
Preferred Stock, Liquidation Preference, Value	$ 1,116,000

Supplemental Consolidated Bal44

Supplemental Consolidated Balance Sheet and Statement of Operations Information (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014	Dec. 31, 2014
Interest and Other Income [Abstract]
Interest income		$ 330		$ 418	$ 557		$ 796
Interest expense		(473)		(134)	(1,143)		(221)
Impairments of investments		0		(191)	0		(588)
Gain on equity method investments		0		(420)	0		(368)
Fair Value, Option, Changes in Fair Value, Gain (Loss)		450		0	450		0
Foreign exchange losses, net		2,532	[1]	(724)	(16,965)	[1]	(1,473)
Other		102		28	115		(9)
Other expense, net		2,941		(1,023)	(16,986)		(1,863)
Prepaid Expense and Other Assets, Current [Abstract]
Current portion of unamortized tax effects on intercompany transactions		4,204			4,204			$ 14,170
Finished goods inventories		48,480			48,480			52,237
Prepaid expenses		47,782			47,782			32,758
Restricted cash		6,677			6,677			10,852
Income taxes receivable		34,574			34,574			41,769
VAT receivable		12,616			12,616			17,746
Prepaid marketing		5,691			5,691			7,413
Other		13,422			13,422			15,437
Total prepaid expenses and other current assets		173,446			173,446			192,382
Merchant and Supplier Payables [Abstract]
Accrued merchant payables		485,221			485,221			499,317
Accrued supplier payables	[2]	214,544			214,544			272,839
Total accrued merchant and supplier payables		699,765			699,765			772,156
Accrued Expenses [Abstract]
Marketing		17,531			17,531			15,962
Refunds reserve		29,263			29,263			32,535
Payroll and benefits		51,407			51,407			59,802
Customer credits		34,333			34,333			42,729
Professional fees		21,590			21,590			14,254
Other		65,924			65,924			48,978
Total accrued expenses		220,048			220,048			214,260
Current liabilities [Abstract]:
Income taxes payable		9,765			9,765			14,461
VAT payable		20,752			20,752			30,778
Sales taxes payable		5,742			5,742			9,042
Deferred revenue		50,911			50,911			46,344
Capital lease obligations		15,754			15,754			14,872
Other		20,168			20,168			11,624
Total other current liabilities		123,092			123,092			127,121
Liabilities, Noncurrent [Abstract]
Long-term tax liabilities		91,828			91,828			82,138
Deferred rent		13,017			13,017			13,200
Capital lease obligations		17,251			17,251			23,387
Other		7,908			7,908			10,806
Total other non-current liabilities		130,004			130,004			$ 129,531
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments, beginning of period					36,764
Unrealized loss on available-for-sale securities, net of tax, beginning of period					499
Accumulated other comprehensive income (loss), pension and other postretirement benefit plans, net of tax, beginning of period					(1,500)
Accumulated other comprehensive income, beginning of period					35,763
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax		27		0	53		0
Foreign currency translation adjustments, end of period		56,460			56,460
Unrealized loss on available-for-sale securities, net of tax, end of period		675			675
Accumulated other comprehensive income (loss), pension and other postretirement benefit plans, net of tax, end of period		(1,447)			(1,447)
Accumulated other comprehensive income, end of period		55,688			55,688
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments					19,696
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax		39		(73)	176		(374)
Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gain (loss) on available-for-sale debt security, net of tax					176
Other comprehensive income					19,925
Continuing Operations [Member]
Interest and Other Income [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax		(4,401)		0	(4,401)		0
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments		1,025		46	11,732		(1,178)
Other comprehensive income		$ 1,091		$ (27)	$ 11,961		$ (1,552)
[1]	Foreign currency gains (losses), net for the three and six months ended June 30, 2015 includes a $4.4 million loss related to the cumulative translation adjustment from the Company's legacy business in the Republic of Korea that was reclassified to earnings as a result of the Ticket Monster disposition.
[2]	(1)Amounts include payables to suppliers of inventories and providers of shipping and fulfillment services.

Commitments and Contingencies L

Commitments and Contingencies Legal Matters (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Jun. 30, 2015
COMMITMENTS AND CONTINGENCIES [Abstract]
Restatement of Prior Year Revenue	$ 14.3
Restatement of Prior Year Operating Income	30
Restatement of Prior Year Income, Net of Tax	$ 22.6
Impact of Restatement on Earnings Per Share, Basic	$ 0.04
Litigation Settlement, Expense		$ 8.5
Loss Contingency, Range of Possible Loss, Maximum			$ 43.4

Stockholders' Equity and Comp46

Stockholders' Equity and Compensation Arrangements Initial Public Offering, Convertible Preferred Stock and Common Stock (Details)	12 Months Ended
	Dec. 31, 2012NumberofClasses
Classes of common stock, number	3

Stockholders' Equity and Comp47

Stockholders' Equity and Compensation Arrangements Repurchase Program (Details) - Common Class A [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Sep. 30, 2014
Employee Stock Purchase Plan [Line Items]
Stock Repurchase Program, Authorized Amount	$ 500	$ 500	$ 300
Stock Repurchased During Period, Shares	19,334,744	21,752,444
Stock Repurchased During Period, Value	$ 122.7	$ 141.2
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	461,000,000	461,000,000

Stockholders' Equity and Comp48

Stockholders' Equity and Compensation Arrangements Groupon, Inc. Stock Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	33,584,296		33,584,296
Share-based Compensation	$ 38,485	$ 29,738	$ 73,629	[1]	$ 52,649	[1]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount	3,300	2,800	6,400		$ 5,100
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 257,100		$ 257,100
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 3 months 20 days
Employee Stock Purchase Plan, shares authorized	10,000,000		10,000,000
Employee Stock Purchase Plan, issued shares			328,644		333,824
Continuing Operations [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 38,500	29,700	$ 73,600		$ 52,600
Discontinued Operations [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 4,200	$ 2,000	$ 5,300		$ 2,800
[1]	Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015.

Stockholders' Equity and Comp49

Stockholders' Equity and Compensation Arrangements Stock Option Activity (Details) - Employee Stock Option [Member] - USD ($)		6 Months Ended	12 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Options [Abstract]
Outstanding stock options		2,262,994
Exercise of stock options, shares		(398,720)
Forfeited stock options		(902)
Outstanding stock options		1,863,372	2,262,994
Exercisable stock options		1,863,372
Weighted average number of shares outstanding
Weighted Average Exercise Price Outstanding Stock Options		$ 1.09
Weighted Average Exercise Price, Exercised Options		0.94
Weighted Average Exercise Price, Forfeited Options		2.48
Weighted Average Exercise Price Outstanding Stock Options		1.12	$ 1.09
Weighted Average Exercise Price, Exercisable Options		$ 1.12
Weighted Average Remaining Contractual Term [Abstract]
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2		4 years 6 months 18 days	5 years 10 days
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2		4 years 6 months 18 days	5 years 10 days
Weighted Average Remaining Contractual Term, Exercisable		4 years 6 months 18 days
Aggregate Intrinsic Value [Abstract]
Average Intrinsic Value, Outstanding	[1]	$ 16,226,000
Average Intrinsic Value, Outstanding	[1]	7,286,000	$ 16,226,000
Average Intrinsic Value, Exercisable	[1]	$ 7,286,000
[1]	The aggregate intrinsic value of options outstanding and exercisable represents the total pretax intrinsic value (the difference between the fair value of the Company's stock on the last day of each period and the exercise price, multiplied by the number of options where the fair value exceeds the exercise price) that would have been received by the option holders had all option holders exercised their options as of June 30, 2015 and December 31, 2014, respectively.

Stockholders' Equity and Comp50

Stockholders' Equity and Compensation Arrangements Restricted Stock Units (Details) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		25.00%
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition	575,744
Restricted Stock Units (RSUs) [Member]
Restricted Stock Units [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		41,337,927
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		18,480,855
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		(12,345,592)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period		(4,242,851)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	43,230,339	43,230,339
Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value		$ 7.78
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		7.10
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value		7.93
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		8
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 7.42	$ 7.42

Stockholders' Equity and Comp51

Stockholders' Equity and Compensation Arrangements Performance Share Units (Details) - 12 months ended Dec. 31, 2014 - Performance Shares [Member] - $ / shares	Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Share Units, Shares Granted	2,000,000
Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 8.07

Stockholders' Equity and Comp52

Stockholders' Equity and Compensation Arrangements Restricted Stock Awards (Details) - Restricted Stock [Member] - $ / shares	6 Months Ended
	Jun. 30, 2015
Restricted Stock Award [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	34,067
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	984,843
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(34,067)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	984,843
Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 15.53
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	7.42
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	15.53
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 7.42

Income Taxes Text (Details)

Income Taxes Text (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Provision for income taxes	$ 8,982	$ 12,045	$ 11,089	$ 26,615
Loss from continuing operations before provision for income taxes	(6,285)	$ 1,353	$ (20,917)	$ (5,851)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%
Potential Change in Unrecognized Tax Benefits	19,300		$ 19,300
Current portion of unamortized tax effects on intercompany transactions	4,204		4,204		$ 14,170
Prepaid Expenses and Other Current Assets [Member]
Current portion of unamortized tax effects on intercompany transactions	4,200		4,200		$ 14,200
Future amortization through 2015 [Member]
Current portion of unamortized tax effects on intercompany transactions	$ 4,200		$ 4,200

Fair Value Measurements Conting

Fair Value Measurements Contingent Obligations (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015USD ($)
Other Acquisitions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High	$ 7

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value, Assets and Liabilities Measured at Fair Value (Details) - USD ($)	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 122,525,000	$ 122,075,000	$ 122,075,000
Available-for-sale securities	12,907,000		7,437,000
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	490,635,000		440,596,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	122,525,000
Contingent Consideration, Fair Value Disclosure	233,000		1,983,000
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	490,635,000		440,596,000
Contingent Consideration, Fair Value Disclosure	0		0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0		0
Contingent Consideration, Fair Value Disclosure	0		0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	122,525,000
Contingent Consideration, Fair Value Disclosure	233,000		1,983,000
Convertible debt securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,026,000		2,527,000
Convertible debt securities [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0
Convertible debt securities [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0
Convertible debt securities [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	8,026,000		2,527,000
Redeemable preferred shares [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,881,000		4,910,000
Redeemable preferred shares [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0
Redeemable preferred shares [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	0		0
Redeemable preferred shares [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 4,881,000		$ 4,910,000

Fair Value Measurements Fair 56

Fair Value Measurements Fair Value, Reconciliation of Level 3 - Assets (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Purchases of Convertible Debt		$ 5,000		$ 5,000
Fair Value, Option, Changes in Fair Value, Gain (Loss)		450	$ 0	450	$ 0
AFS Securities, Beginning Asset Value		122,075		122,075
AFS Securities, Ending Asset Value		122,525		122,525
Unrealized Gains (Losses) Still Held - Assets	[1]	450		450
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		233	4,006	233	4,006	$ 1,373	$ 1,983	$ 606
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances			4,006		4,006
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements		(716)		(716)	(424)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements)		0		(331)	(143)
Gain from changes in fair value of contingent consideration	[2]	(424)		(703)	(39)
Fair Value, Measurement with Unobservable Inputs, Unrealized Gain Loss	[1]	(857)		(1,091)	0
Convertible debt securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings	[3]	187		187
AFS Securities, Beginning Asset Value		2,757	2,693	2,527	3,174
AFS Debt Security, (losses) included in OCI		82	(63)	312	(544)
AFS Securities, Ending Asset Value		8,026	2,630	8,026	2,630
Unrealized Gains (Losses) Still Held - Assets	[1]	269	(63)	499	(544)
Redeemable preferred shares [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
AFS Securities, Beginning Asset Value		4,900	4,599	4,910	0
AFS Debt Security, (losses) included in OCI		(19)	(55)	(29)	(55)
AFS Securities, Ending Asset Value		4,881	4,544	4,881	4,544
Purchase of redeemable preferred shares		0		0	4,599
Unrealized Gains (Losses) Still Held - Assets	[1]	(19)	$ (55)	(29)	$ (55)
Monster LP [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Option, Changes in Fair Value, Gain (Loss)		$ 450		$ 450
[1]	Represents the unrealized losses or gains recorded in earnings and/or other comprehensive income (loss) during the period for assets and liabilities classified as Level 3 that are still held (or outstanding) at the end of the period.
[2]	Changes in the fair value of contingent consideration liabilities are classified within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations.
[3]	Represents accretion of interest income and changes in the fair value of an embedded derivative.

Fair Value Measurements Fair 57

Fair Value Measurements Fair Value, Reconciliation of Level 3 - Liabilities (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent Consideration, Beginning Value		$ 1,373	$ 1,983	$ 606
Contingent Consideration, Settlements		(716)	(716)	(424)
Contingent Consideration, Reclass		0	(331)	(143)
(Gain) loss, net from changes in fair value of contingent consideration	[1]	(424)	(703)	(39)
Contingent Consideration, Ending Value		233	233	4,006
Fair Value, Measurement with Unobservable Inputs, Unrealized Gain Loss	[2]	$ (857)	$ (1,091)	$ 0
[1]	Changes in the fair value of contingent consideration liabilities are classified within "Acquisition-related expense (benefit), net" on the condensed consolidated statements of operations.
[2]	Represents the unrealized losses or gains recorded in earnings and/or other comprehensive income (loss) during the period for assets and liabilities classified as Level 3 that are still held (or outstanding) at the end of the period.

Fair Value Measurements Financi

Fair Value Measurements Financial Assets and Liabilities, Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments	$ 14,586	$ 15,630
Cost Method Investments, Fair Value Disclosure	$ 14,884	$ 16,134

Income (Loss) Per Share of Cl59

Income (Loss) Per Share of Class A and Class B Common Stock Basic and Diluted Earnings Per Share (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic net income (loss) per share
Allocation of net loss - continuing operations		$ (15,267,000)	$ (10,692,000)	$ (32,006,000)	$ (32,466,000)
Less: Allocation of net income attributable to noncontrolling interests		2,828,000	1,953,000	6,646,000	4,385,000
Net loss from discontinued operations		127,179,000	(10,230,000)	133,463,000	(23,819,000)
Net loss attributable to Groupon, Inc.		$ 109,084,000	$ (22,875,000)	$ 94,811,000	$ (60,670,000)
Basic, weighted average number of shares outstanding		671,630,169	675,538,392	674,006,553	678,958,541
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Basic, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Diluted net income (loss) per share
Basic, weighted average number of shares outstanding		671,630,169	675,538,392	674,006,553	678,958,541
Diluted, weighted average number of shares outstanding		671,630,169	675,538,392	674,006,553	678,958,541
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Diluted, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Common Class A [Member]
Basic net income (loss) per share
Allocation of net loss - continuing operations		$ (15,211,000)	$ (10,653,000)	$ (31,892,000)	$ (32,351,000)
Less: Allocation of net income attributable to noncontrolling interests		2,818,000	1,946,000	6,622,000	4,369,000
Allocation of net loss attributable to common stockholders - continuing operations		(18,029,000)	(12,599,000)	(38,514,000)	(36,720,000)
Net loss from discontinued operations		126,725,000	(10,193,000)	132,986,000	(23,734,000)
Net loss attributable to Groupon, Inc.		$ 108,696,000	$ (22,792,000)	$ 94,472,000	$ (60,454,000)
Basic, weighted average number of shares outstanding		669,230,193	673,138,416	671,606,577	676,558,565
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Basic, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Diluted net income (loss) per share
Allocation of net income attributable to common stockholders		$ 108,696,000	$ (22,792,000)	$ 94,472,000	$ (60,454,000)
Basic, weighted average number of shares outstanding		669,230,193	673,138,416	671,606,577	676,558,565
Conversion of Class B	[1]	0	0	0	0
Employee stock options	[1]	0	0	0	0
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units	[1]	$ 0	$ 0	$ 0	$ 0
Diluted, weighted average number of shares outstanding	[1]	669,230,193	673,138,416	671,606,577	676,558,565
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Diluted, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Common Class B [Member]
Basic net income (loss) per share
Allocation of net loss - continuing operations		$ (56,000)	$ (39,000)	$ (114,000)	$ (115,000)
Less: Allocation of net income attributable to noncontrolling interests		10,000	7,000	24,000	16,000
Allocation of net loss attributable to common stockholders - continuing operations		(66,000)	(46,000)	(138,000)	(131,000)
Net loss from discontinued operations		454,000	(37,000)	477,000	(85,000)
Net loss attributable to Groupon, Inc.		$ 388,000	$ (83,000)	$ 339,000	$ (216,000)
Basic, weighted average number of shares outstanding		2,399,976	2,399,976	2,399,976	2,399,976
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Basic, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Diluted net income (loss) per share
Allocation of net income attributable to common stockholders		$ 388,000	$ (83,000)	$ 339,000	$ (216,000)
Basic, weighted average number of shares outstanding		2,399,976	2,399,976	2,399,976	2,399,976
Conversion of Class B	[1]	0	0	0	0
Employee stock options	[1]	0	0	0	0
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units	[1]	$ 0	$ 0	$ 0	$ 0
Diluted, weighted average number of shares outstanding	[1]	2,399,976	2,399,976	2,399,976	2,399,976
Continuing operations		$ (0.03)	$ (0.02)	$ (0.06)	$ (0.05)
Discontinued operations		0.19	(0.01)	0.20	(0.04)
Diluted, net (loss) earnings per share		$ 0.16	$ (0.03)	$ 0.14	$ (0.09)
Continuing Operations [Member] | Common Class A [Member]
Diluted net income (loss) per share
Allocation of net loss attributable to common stockholders for basic computation		$ (18,029,000)	$ (12,599,000)	$ (38,514,000)	$ (36,720,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B	[1]	0	0	0	0
Allocation of net income attributable to common stockholders		(18,029,000)	(12,599,000)	(38,514,000)	(36,720,000)
Continuing Operations [Member] | Common Class B [Member]
Diluted net income (loss) per share
Allocation of net loss attributable to common stockholders for basic computation		(66,000)	(46,000)	(138,000)	(131,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B	[1]	0	0	0	0
Allocation of net income attributable to common stockholders		(66,000)	(46,000)	(138,000)	(131,000)
Discontinued Operations [Member] | Common Class A [Member]
Diluted net income (loss) per share
Allocation of net loss attributable to common stockholders for basic computation		126,725,000	(10,193,000)	132,986,000	(23,734,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B	[1]	0	0	0	0
Allocation of net income attributable to common stockholders		126,725,000	(10,193,000)	132,986,000	(23,734,000)
Discontinued Operations [Member] | Common Class B [Member]
Diluted net income (loss) per share
Allocation of net loss attributable to common stockholders for basic computation		454,000	(37,000)	477,000	(85,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B	[1]	0	0	0	0
Allocation of net income attributable to common stockholders		$ 454,000	$ (37,000)	$ 477,000	$ (85,000)
[1]	Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted net loss per share calculation for the three and six months ended June 30, 2015 and 2014 because the effect would be antidilutive.

Income (Loss) Per Share of Cl60

Income (Loss) Per Share of Class A and Class B Common Stock Schedule of Equity Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	46,997,097	47,615,327	44,196,030	45,757,347
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	1,986,295	2,871,939	2,060,915	3,052,703
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	43,168,136	43,983,986	40,612,765	42,075,003
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	1,005,543	62,158	793,170	69,583
Employee Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	837,123	697,244	729,180	560,058

Segment Information Segment Inf

Segment Information Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Segment Reporting Information [Line Items]
Number of Reportable Segments				3
Revenue		$ 738,395	$ 716,211	$ 1,488,751		$ 1,444,626
Segment cost of revenue and operating expenses	[1]	708,649	683,500	1,418,835		1,393,583
Segment operating income (loss)	[1]	29,746	32,711	69,916		51,043
Acquisition-related (benefit) expense, net		505	597	236		2,382
Income (loss) from operations		(9,226)	2,376	(3,931)		(3,988)
Other expense, net		2,941	(1,023)	(16,986)		(1,863)
Loss from continuing operations before provision for income taxes		(6,285)	1,353	(20,917)		(5,851)
Provision for income taxes		8,982	12,045	11,089		26,615
Net loss from continuing operations		(15,267)	(10,692)	(32,006)		(32,466)
Net loss from discontinued operations		127,179	(10,230)	133,463		(23,819)
Net loss		111,912	(20,922)	101,457		(56,285)
Share-based Compensation	[2]	38,467	29,738	73,611
Share-based Compensation		38,485	29,738	73,629	[2]	52,649	[2]
North America [Member]
Segment Reporting Information [Line Items]
Revenue	[3]	481,282	423,931	961,164		854,993
Segment cost of revenue and operating expenses	[1]	454,413	409,386	909,629		829,063
Segment operating income (loss)	[1]	26,869	14,545	51,535		25,930
Acquisition-related (benefit) expense, net		505	597	236		2,238
Share-based Compensation		34,031	26,206	65,283		45,686
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue	[3]	204,047	227,690	420,267		458,583
Segment cost of revenue and operating expenses	[1]	194,378	199,981	390,946		411,951
Segment operating income (loss)	[1]	9,669	27,709	29,321		46,632
Acquisition-related (benefit) expense, net		0	0	0		144
Share-based Compensation		2,793	2,227	5,440		4,500
ROW [Member]
Segment Reporting Information [Line Items]
Revenue		53,066	64,590	107,320		131,050
Segment cost of revenue and operating expenses	[1]	59,858	74,133	118,260		152,569
Segment operating income (loss)	[1]	(6,792)	(9,543)	(10,940)		(21,519)
Acquisition-related (benefit) expense, net		0	0	0		0
Share-based Compensation		1,661	1,305	$ 2,906		2,463
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration of risk, percentage				10.00%
Other Income [Member]
Segment Reporting Information [Line Items]
Share-based Compensation		20
SWITZERLAND
Segment Reporting Information [Line Items]
Revenue		113,700	102,400	$ 231,200		194,300
UNITED STATES
Segment Reporting Information [Line Items]
Revenue		$ 474,500	$ 413,200	$ 947,600		$ 833,100
[1]	Segment cost of revenue and operating expenses and segment operating income (loss) exclude stock-based compensation and acquisition-related (benefit) expense, net. This presentation corresponds to the measure of segment profit or loss that the Company's chief operating decision-maker uses in assessing segment performance and making resource allocation decisions. The table below summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the three and six months ended June 30, 2015 and 2014 (in thousands):
[2]	Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015.
[3]	North America includes revenue from the United States of $474.5 million and $413.2 million for the three months ended June 30, 2015 and 2014, respectively, and $947.6 million and $833.1 million for the six months ended June 30, 2015 and 2014, respectively. EMEA includes revenue from Switzerland of $113.7 million and $102.4 million for the three months ended June 30, 2015 and 2014, respectively, and $231.2 million and $194.3 million for the six months ended June 30, 2015 and 2014, respectively. There were no other individual countries that represented more than 10% of consolidated total revenue for the three and six months ended June 30, 2015 and 2014.

Segment Information Total Asset

Segment Information Total Assets (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets, Continuing Operations		$ 2,020,826	$ 2,227,597
Disposal Group, Including Discontinued Operation, Assets	[1]	0	386,550
North America [Member]
Segment Reporting Information [Line Items]
Assets, Continuing Operations	[1]	1,246,303	1,150,417
EMEA [Member]
Segment Reporting Information [Line Items]
Assets, Continuing Operations		515,935	552,486
ROW [Member]
Segment Reporting Information [Line Items]
Assets, Continuing Operations		$ 258,588	138,144
Assets, Total [Member]
Segment Reporting Information [Line Items]
Concentration of risk, percentage		10.00%
UNITED STATES
Segment Reporting Information [Line Items]
Assets, Continuing Operations		$ 1,213,700	1,120,400
Korea [Member]
Segment Reporting Information [Line Items]
Assets, Continuing Operations			$ 386,600
[1]	North America contains assets from the United States of $1,213.7 million and $1,120.4 million as of June 30, 2015 and December 31, 2014, respectively. Assets held for sale contains assets from the Republic of Korea of $386.6 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of June 30, 2015 and December 31, 2014

Segment Information Revenue by

Segment Information Revenue by Segment and Category (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)		Jun. 30, 2014USD ($)
Share-based Compensation		$ 38,485	$ 29,738	$ 73,629	[1]	$ 52,649	[1]
Primary Categories				3
Third party and other		340,846	372,504	$ 700,967		770,206
Direct		397,549	343,707	787,784		674,420
Total revenue		738,395	716,211	1,488,751		1,444,626
North America [Member]
Share-based Compensation		34,031	26,206	65,283		45,686
Total revenue	[2]	481,282	423,931	961,164		854,993
EMEA [Member]
Share-based Compensation		2,793	2,227	5,440		4,500
Total revenue	[2]	204,047	227,690	420,267		458,583
ROW [Member]
Share-based Compensation		1,661	1,305	2,906		2,463
Total revenue		53,066	64,590	107,320		131,050
Local [Member]
Third party and other	[3]	276,503	298,003	570,184		623,302
Local [Member] | North America [Member]
Third party and other	[3]	172,461	164,500	353,325		341,747
Local [Member] | EMEA [Member]
Third party and other	[3]	75,543	96,485	158,079		205,605
Local [Member] | ROW [Member]
Third party and other	[3]	28,499	37,018	58,780		75,950
Goods [Member]
Third party and other		22,922	34,397	48,161		68,636
Direct		397,549	343,707	787,784		674,420
Total revenue		420,471	378,104	835,945		743,056
Goods [Member] | North America [Member]
Third party and other		1,671	1,399	2,319		2,720
Direct		285,192	240,227	563,573		476,341
Total revenue		286,863	241,626	565,892		479,061
Goods [Member] | EMEA [Member]
Third party and other		9,702	16,845	21,680		34,320
Direct		105,702	98,568	212,691		187,982
Total revenue		115,404	115,413	234,371		222,302
Goods [Member] | ROW [Member]
Third party and other		11,549	16,153	24,162		31,596
Direct		6,655	4,912	11,520		10,097
Total revenue		18,204	21,065	35,682		41,693
Travel [Member]
Third party and other		41,421	40,104	82,622		78,268
Travel [Member] | North America [Member]
Third party and other		21,958	17,805	41,947		34,185
Travel [Member] | EMEA [Member]
Third party and other		13,100	15,792	27,817		30,676
Travel [Member] | ROW [Member]
Third party and other		$ 6,363	$ 6,507	$ 12,858		$ 13,407
[1]	Includes stock-based compensation classified within cost of revenue, marketing expense, and selling, general and administrative expense. Other income (expense), net, includes $0.02 million of additional stock-based compensation for the three and six months ended June 30, 2015.
[2]	North America includes revenue from the United States of $474.5 million and $413.2 million for the three months ended June 30, 2015 and 2014, respectively, and $947.6 million and $833.1 million for the six months ended June 30, 2015 and 2014, respectively. EMEA includes revenue from Switzerland of $113.7 million and $102.4 million for the three months ended June 30, 2015 and 2014, respectively, and $231.2 million and $194.3 million for the six months ended June 30, 2015 and 2014, respectively. There were no other individual countries that represented more than 10% of consolidated total revenue for the three and six months ended June 30, 2015 and 2014.
[3]	Includes revenue from deals with local and national merchants and through local events.

Segment Information Gross Profi

Segment Information Gross Profit by Segment and Category (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Gross Profit by Category [Line Items]
Gross profit		$ 337,007	$ 366,410	$ 684,413	$ 731,922
North America [Member]
Gross Profit by Category [Line Items]
Gross profit		196,557	180,000	391,047	359,668
EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit		104,087	140,699	219,324	281,736
ROW [Member]
Gross Profit by Category [Line Items]
Gross profit		36,363	45,711	74,042	90,518
Local [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit	[1]	242,411	265,044	500,704	549,530
Local [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit	[1]	147,574	142,674	302,350	295,296
Local [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit	[1]	70,270	90,373	147,626	190,439
Local [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit	[1]	24,567	31,997	50,728	63,795
Goods [Member]
Gross Profit by Category [Line Items]
Gross profit		59,260	67,179	115,276	114,449
Goods [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		15,554	24,516	32,588	50,174
Goods [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit		43,706	42,663	82,688	64,275
Goods [Member] | North America [Member]
Gross Profit by Category [Line Items]
Gross profit		30,598	22,961	54,521	35,565
Goods [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		1,408	1,128	1,842	2,288
Goods [Member] | North America [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit		29,190	21,833	52,679	33,277
Goods [Member] | EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit		21,878	35,432	47,359	62,734
Goods [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		7,779	14,990	17,972	30,712
Goods [Member] | EMEA [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit		14,099	20,442	29,387	32,022
Goods [Member] | ROW [Member]
Gross Profit by Category [Line Items]
Gross profit		6,784	8,786	13,396	16,150
Goods [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		6,367	8,398	12,774	17,174
Goods [Member] | ROW [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit		417	388	622	(1,024)
Travel [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		35,336	34,187	68,433	67,943
Travel [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		18,385	14,365	34,176	28,807
Travel [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		11,939	14,894	24,339	28,563
Travel [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit		$ 5,012	$ 4,928	$ 9,918	$ 10,573
[1]	Includes gross profit from deals with local and national merchants and through local events.

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Thousands	Aug. 05, 2015	Jul. 16, 2015	Jun. 30, 2015	Jul. 01, 2015
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross			$ 5,461
Subsequent Event [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				$ 92,308
Subsequent Event [Member] | 2015 [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				428
Subsequent Event [Member] | 2016 [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				(595)
Subsequent Event [Member] | 2017 [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				3,405
Subsequent Event [Member] | 2018 [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				3,787
Subsequent Event [Member] | 2019 [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				8,107
Subsequent Event [Member] | Thereafter [Member] | Corporate, Non-Segment [Member]
Subsequent Event [Line Items]
Net Increase (Decrease) in Operating Lease Commitments				$ 77,176
Minimum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Gain (Loss) on Disposition of Business	$ 13,000
Maximum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Gain (Loss) on Disposition of Business	$ 17,000
OrderUp, Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross		$ 69,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$ 20,000