10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2014

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________________ to ________________

Commission file number: 1-35335

Groupon, Inc.

(Exact name of registrant as specified in its charter)

Delaware	27-0903295
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
600 West Chicago Avenue, Suite 400 Chicago, Illinois	60654
(Address of principal executive offices)	(Zip Code)

312-334-1579

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Class A Common Stock, par value $0.0001	Nasdaq Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.         

Yes x No  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act.    

Yes             No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     

Yes  x         No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).         

Yes  x             No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer x                           Accelerated filer         

Non-accelerated filer (Do not check if a smaller reporting company)    Smaller reporting company

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).                                    Yes         No  x

As of June 30, 2014, the aggregate market value of shares held by non-affiliates of the registrant was $3,340,614,720 based on the number of shares of Class A common stock held by non-affiliates as of June 30, 2014 and based on the last reported sale price of the registrant's Class A common stock on June 30, 2014.

As of February 9, 2015, there were 672,963,103 shares of the registrant's Class A Common Stock outstanding and 2,399,976 shares of the registrant's Class B Common Stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The information required by Part III of this Report, to the extent not set forth herein, is incorporated herein by reference from the registrant's definitive proxy statement relating to the Annual Meeting of Stockholders to be held in 2015, which definitive proxy statement shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Report relates.

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TABLE OF CONTENTS

PART I	Page
Forward-Looking Statements	3
Item 1. Business	3
Item 1A. Risk Factors	11
Item 1B. Unresolved Staff Comments	26
Item 2. Properties	26
Item 3. Legal Proceedings	26
Item 4. Mine Safety Disclosures	26
PART II
Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	27
Item 6. Selected Financial Data	30
Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations	32
Item 7A. Quantitative and Qualitative Disclosure about Market Risk	80
Item 8. Financial Statements and Supplementary Data	81
Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	135
Item 9A. Controls and Procedures	135
Item 9B. Other Information	137
PART III
Item 10. Directors, Executive Officers and Corporate Governance	138
Item 11. Executive Compensation	138
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	138
Item 13. Certain Relationships and related Transactions, and Director Independence	138
Item 14. Principal Accountant Fees and Services	138
Part IV
Item 15. Exhibits and Financial Statement Schedule	139

______________________________________________________

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PART I

FORWARD‑LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, as amended, including statements regarding our future results of operations and financial position, business strategy and plans and our objectives for future operations. The words "may," "will," "should," "could," "expect," "anticipate," "believe," "estimate," "intend," "continue" and other similar expressions are intended to identify forward-looking statements. We have based these forward looking statements largely on current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements involve risks and uncertainties that could cause our actual results to differ materially from those expressed or implied in our forward-looking statements. Such risks and uncertainties include, among others, those discussed in "Item 1A: Risk Factors" of this Annual Report on Form 10-K, as well as in our consolidated financial statements, related notes, and the other financial information appearing elsewhere in this report and our other filings with the Securities and Exchange Commission, or the SEC. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. We do not intend, and undertake no obligation, to update any of our forward-looking statements after the date of this report to reflect actual results or future events or circumstances. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.

As used herein, "Groupon," "we," "our," and similar terms include Groupon, Inc. and its subsidiaries, unless the context indicates otherwise.

ITEM 1: BUSINESS

Overview

Groupon is a global leader in local commerce, making it easy for people around the world to search and discover great businesses and merchandise. Our vision is to connect local commerce, increasing consumer buying power while driving more business to merchants through price and discovery. We want Groupon to be the destination that our customers check first when they are out and about; the place they start when they are looking to buy just about anything, anywhere, anytime. By leveraging our global relationships and scale, we offer consumers deals on things to eat, see, do and buy in 47 countries.

We operate online local commerce marketplaces throughout the world that connect merchants to consumers by offering goods and services at a discount. Our operations are organized into three principal segments: North America, which represents the United States and Canada, EMEA, which is comprised of Europe, the Middle East and Africa, and the remainder of our international operations ("Rest of World"). We offer deals on goods and services in three primary categories: Local Deals ("Local"), Groupon Goods ("Goods") and Groupon Getaways ("Travel"). We act as a third party marketing agent by selling vouchers ("Groupons") that can be redeemed for products or services with a merchant. We also sell merchandise directly to customers in transactions for which we are the merchant of record. Customers access our deal offerings directly through our websites, mobile platforms and emails and may also access our offerings indirectly using search engines.

Our results from 2014 include the following:

• Gross billings increased to $7.6 billion in 2014, as compared to $5.8 billion in 2013. In 2014, 43.6%, 27.0% and 29.4% of our gross billings were generated in North America, EMEA and Rest of World, respectively, as compared to 49.5%, 34.5% and 16.0% in 2013. Gross billings represent the total dollar value of customer purchases of goods and services, excluding applicable taxes and net of estimated refunds. Gross billings differs from our revenue, which is presented net of the merchant's share of the transaction price for transactions in which we act as a third party marketing agent. Gross billings and revenue are the same for transactions in which we sell merchandise directly to customers as the merchant of record.

• Revenue increased to $3.2 billion in 2014, as compared to $2.6 billion in 2013. In 2014, 57.2%, 30.1% and 12.7% of our revenue was generated in North America, EMEA and Rest of World, respectively, as compared to 59.1%, 28.9% and 12.0% in 2013.

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• Gross profit increased to $1,549.2 million in 2014, as compared to $1,501.5 million in 2013.

• Loss from operations was $14.8 million in 2014, compared to $75.8 million of income from operations in 2013.

• The number of active customers, which is defined as customers who have made a purchase on our platform within the last twelve months, increased to 53.9 million as of December 31, 2014from 43.7 million as of December 31, 2013.

• As of December 31, 2014, we had approximately 370,000 active deals available to customers through our marketplaces.

We are a Delaware corporation, incorporated on January 15, 2008 under the name "ThePoint.com, Inc." We started Groupon in October 2008 and officially changed our name to Groupon, Inc. by filing an amended certificate of incorporation on June 16, 2009. Our principal executive offices are located at 600 West Chicago Avenue, Suite 400, Chicago, Illinois 60654, and our telephone number at this address is (312) 334-1579. Our investor relations department can be reached through our investor relations hotline, which is (312) 999-3098. Our website is www.groupon.com. Information contained on our website is not a part of this Annual Report on Form 10-K. We completed our initial public offering in November 2011 and our Class A common stock is listed on the Nasdaq Global Select Market under the symbol "GRPN."

GROUPON, the GROUPON logo and other GROUPON-formative marks are trademarks of Groupon, Inc. in the United States or other countries. This Annual Report on Form 10-K also includes other trademarks of Groupon and trademarks of other persons.

Our Strategy

Our primary objective is to become an essential part of everyday local commerce for consumers and merchants. Key elements of our strategy include the following:

Become the starting point for mobile commerce. We believe that Groupon is well positioned to be a leader in the world of mobile commerce. During 2014, we continued to invest in our mobile technology in order to attempt to capitalize on the growing trend of consumers making purchases through smartphones and tablets. In the fourth quarter of 2014, over 50% of our global transactions were completed on mobile devices. Additionally, almost 110 million people have downloaded our mobile applications worldwide as of January 31, 2015. We intend to continue making investments in mobile technology and marketing to improve the customer experience, help grow our mobile transaction volume and help increase customer awareness of their ability to access our offerings on mobile devices.

Redefine local commerce. Groupon seeks to bring the power of the Internet to local commerce, serving as an important source of customer acquisition for local merchants. To accomplish this, we are focused on growing our base of active customers by offering a variety of quality deals and focusing on customer satisfaction. We believe customer dissatisfaction primarily occurs when we offer deals that our customers do not consider relevant and when the promotional value of a voucher expires before redemption. Our efforts to improve relevance and reduce expirations include building our online commerce marketplaces where merchants generally have a continuous presence for an extended period of time. In our online commerce marketplaces, customers can provide feedback on which merchants they would like to offer deals who are not currently offering deals, which can be used to improve the relevance of future deals. With extended availability of deal offerings through our marketplaces customers can purchase a voucher when they have plans to redeem it, rather than purchasing the voucher earlier in response to a limited-time offer. We have also launched a tablet-based platform for merchants to streamline the voucher redemption process.

Grow our local commerce marketplaces. We continue to transition our business from primarily a "push" model that generates demand by emailing offers to customers to more of a demand fulfillment, or "pull," model that enables customers to search for goods and services through online local marketplaces that they can access through our websites and mobile applications and by using search engines. By continuing to develop and expand our marketplaces and improve the search functionality of our websites and mobile applications, we are seeking to provide customers in each of our markets with a single place where they can go to search for and discover great deals on local merchant offerings, merchandise and travel. We remain focused on growing the supply of active deals available through our marketplaces to achieve this objective. We have increased our average active deal counts from approximately 1,000 deals available worldwide at the time of our initial public offering in November 2011 to approximately 370,000 deals available worldwide as of the end of the fourth quarter of 2014.

We have implemented a self-serve process whereby merchants have the ability to construct deals that can be offered on-demand through our websites and we believe that this process provides merchants with an easier way to improve their web presence and reach new customers. We have also begun adding additional content about local merchants to our websites,

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including merchants who have not offered deals through our marketplaces. This new content, which we refer to as "Pages," is intended to give customers the ability to discover more local businesses and deal offerings through our websites.

Enhance the email experience. While an increasing proportion of transactions on our platform are occurring on mobile devices and our websites, email still generates significant transaction volume and we expect that it will continue to do so in the future. We continue to refine our use of targeting technology that enables us to distribute deal offerings to current and potential customers based on their location and personal preferences. In addition to email, we use this targeting technology for push notifications on mobile devices. Our targeting technology is also used to inform our search engine marketing and other transactional marketing spending that may attract potential customers who have not yet subscribed to our emails, downloaded our mobile applications or purchased a Groupon.

Continue to build out our categories. Although Groupon began by offering only daily deals from local merchants, our platform has evolved over time into three primary categories: Local, Goods and Travel. Within those primary deal categories are a variety of subcategories, such as food and drink, events and activities, health and beauty, household items, jewelry, electronics and apparel. We intend to continue to build out our categories and subcategories by actively pursuing opportunities that would enable us to expand our deal offerings. See the "Categories" section below for additional information.

Globalize our platforms and processes. Because our international expansion was accomplished primarily through acquisitions, we inherited different technology platforms and business processes. We have undertaken a company-wide program that has streamlined many of our technology platforms and processes and we have rolled out a number of internal tools to increase our efficiency, including, for example, internal tools used by our salespeople to support their efforts in obtaining quality deal offerings for our marketplaces. In addition, we are increasingly automating our support functions in order to improve the overall efficiency of our business operations.

Our Business

Groupon operates online local commerce marketplaces throughout the world that connect merchants to consumers by offering goods and services at a discount. Traditionally, local merchants have tried to reach consumers and generate sales through a variety of methods, including online advertising, paid telephone directories, direct mail, newspaper, radio, television and other promotions. By bringing the brick and mortar world of local commerce onto the Internet, Groupon is helping local merchants to attract customers and sell goods and services. We provide consumers with savings and help them discover what to do, eat, see, buy and where to travel.

We earn revenue from deals where we act as a third party marketing agent by selling vouchers that can be redeemed for goods or services with a merchant. Our third party revenue from those transactions is the purchase price paid by the customer for the voucher less an agreed upon portion of the purchase price paid to the featured merchants, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. We also earn revenue by selling merchandise directly to customers in transactions for which we are the merchant of record. Our direct revenue from those transactions is the purchase price paid by the customer, excluding applicable taxes and net of estimated refunds.

Our business model has evolved from primarily an email-based "push" model with a limited number of deals offered at any given time to more extensive online "pull" marketplaces, particularly in North America, where customers can come to Groupon and search for deals on goods and services. Our marketplaces are accessible through our websites and mobile applications, including through localized groupon.com sites in many countries. We also recently launched Pages in North America, a platform that we use to publish ratings and helpful tips from customers to highlight the unique aspects of local merchants, including merchants that have not offered deals through our marketplaces. In addition, Pages provide merchants with an additional online presence to connect with potential customers and drive more sales in the form of exclusive offers, everyday specials, coupons and other promotions.    

On January 2, 2014, we acquired LivingSocial Korea, Inc. ("LS Korea"), a Korean corporation and holding company of Ticket Monster Inc. ("Ticket Monster"), for total consideration of $259.4 million, consisting of $96.5 million cash and 13,825,283 shares of Class A common stock with an acquisition date fair value of $162.9 million.  Ticket Monster, which has approximately 1,000 employees, 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 are reported within our Rest of World segment in 2014.

We have hired advisers to help us explore a range of financing and strategic alternatives for Ticket Monster and certain other Asian markets. As part of that process, multiple parties have expressed preliminary interest in Ticket Monster. However, we cannot provide any assurance as to the pricing, timetable or structure of any transaction, or the likelihood of any transaction being completed.

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On January 13, 2014, we acquired Ideeli, Inc. (d/b/a "Ideel"), a fashion flash site based in the United States for $42.7 million. Ideel is focused on women's fashion apparel, accessories and home décor, and the operations of Ideel are reported within our North America segment in 2014.

Categories

Local. Our Local category includes deals with local merchants, deals with national merchants and local events. Local also includes other revenue sources such as advertising revenue, payment processing revenue, point of sale revenue and commission revenue as these revenue sources are primarily generated through the our relationships with local and national merchants. We offer deals for local merchants across multiple subcategories, including food and drink, events and activities, beauty and spa, health and fitness, home and garden and automotive. In the United States, customers can book reservations at selected restaurants through our website and mobile applications. National merchants also have used our marketplaces as an alternative to traditional marketing and brand advertising. Although our business today is weighted toward deals from local merchants, we continue to feature national deals to build our brand awareness, acquire new customers and generate additional revenue. In 2014, we featured deals from a number of well-known national merchants across our North American markets, including Starbucks, Rosetta Stone, Whole Foods, and Sam's Club. In addition to national deals, Coupons, our coupon offering that was launched in 2013, and Snap, our mobile application launched in 2014 that offers customers cash-back for buying featured grocery and consumer-packaged goods, gives customers the ability to access coupons from thousands of retailers. Additionally, GrouponLive is a partnership with LiveNation through which Groupon offers deals on concerts, sports, theater and other live entertainment events.

Goods. Our Goods category offers customers the ability to find deals on merchandise across multipleproduct lines, including electronics, sporting goods, jewelry, toys, household items and apparel. As the Goods category continues to grow, we expect that we will continue to add new brands to our platform in order to expand our offerings.

In our Goods category, we earn direct revenue from transactions in which we sell products directly to customers and serve as the merchant of record, as well as third party revenue from transactions in which we act as a third party marketing agent and sell vouchers that can be redeemed for products with a merchant. Our Goods transactions in North America are primarily direct revenue deals and, beginning in September 2013, a significant portion of our Goods transactions in EMEA have been direct revenue deals as well. Goods transactions in EMEA prior to September 2013 and in our Rest of World segment have primarily been third party revenue deals.

In order to attempt to reduce costs and improve the customer experience, we continue to be focused on streamlining our order fulfillment process for Goods.Although we currently outsource a majority of our inventory fulfillment activities in the United States to third party logistics providers, we expect to reduce our usage of those third parties in future periods by transitioning additional inventory fulfillment work in the United States to internal resources. We launched our own fulfillment center in the fourth quarter of 2013 and have increased our use of arrangements in which the suppliers of our product offerings ship merchandise directly to our customers to further reduce the involvement of third party logistics providers. We are also refining our inventory management practices to better allocate inventories among warehouses in different geographic regions throughout the United States to reduce shipping distances to customers and increase units per transaction.

Getaways. Through our Getaways category, we feature travel offers at both discounted and market rates, including hotels, airfare and package deals covering both domestic and international travel. For many of our travel deals, the customer must contact the merchant directly to make a travel reservation after purchasing the travel voucher from us. However, for some of our hotel deals, we take room reservations directly through our websites.

Distribution

We distribute our deal offerings to customers primarily through three channels: our mobile platform, our websites and email. Customers can also access our deal offerings indirectly through search engines. Our mobile platform consists of apps and mobile websites, which we currently offer on iPhones, iPads, Android, Blackberry and Windows devices.

Mobile Applications. Consumers are increasingly accessing our deals through our mobile applications, as well as through mobile browsers. These applications enable consumers to browse, purchase, manage and redeem deals on their mobile devices. In addition, in our North American markets, consumers have a "Nearby" tab, which shows the deals that are closest to the consumer's location. In the fourth quarter of 2014, over 50% of our global transactions were completed on mobile devices. Additionally, almost 110 million people have downloaded our mobile applications worldwide as of January 31, 2015.

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Websites.In 2014, we launched website enhancements in many of our international markets in an effort to improve the overall customer experience. The enhancements were based on the 2013 redesign of our North American website that included improved search capabilities and personalized offerings each day tailored to the user's preferences.

Email. In North America and most of our international markets, we use targeting technology to distribute deals to current and potential customers based on their locations and personal preferences. A subscriber who clicks on a deal within an email is directed to our website or mobile application to learn more about the deal and make a purchase.

Search Engines and Other. Customers can access our deal offerings indirectly through third party search engines. We use search engine optimization ("SEO") and marketing ("SEM") to increase the visibility of our offerings in web search results. We have established an affiliate program that utilizes third parties to promote our deals online. Affiliates earn commissions when customers access our deals through links on their websites and make purchases. We expect to continue to leverage affiliate relationships to extend the distribution of our deals to a broad base of potential customers. We also publish our deals through various social networks, and our notifications are adapted to the particular format of each of these social networking platforms. Our website and mobile application interfaces enable our consumers to push notifications of our deals to their personal social networks.

Marketing

Marketing is the primary method by which we acquire customers and promote awareness of our marketplaces and deal offerings and, as such, is an important part of our growth strategy. Our marketing spend increased, both in absolute dollars and as a percentage of revenue, during the year ended December 31, 2014, as compared to the prior year, and remains a key element of our business operations. Online marketing consists of search engine marketing, television, billboard and radio advertisements, public relations and sponsored events to increase our visibility and build our brand. Our marketing activities also include elements that are not presented as "Marketing" on our consolidated statements of operations, such as order discounts and free shipping on merchandise sales.

Sales and Operations

Our sales force includes approximately 5,000 merchant sales representatives and sales support staff, who build merchant relationships and provide local expertise. Our North American merchant sales representatives and support staff are primarily based in our offices in Chicago, and our international merchant sales representatives and support staff are based in our international offices, although many of our international merchant sales representatives conduct business using a door-to-door sales strategy.Our global sales and sales support headcount by segment as of December 31, 2014 was as follows:

North America	1,369
EMEA	1,896
Rest of World	1,719
Total	4,984

The number of sales representatives is higher as a percentage of revenue in our EMEA and Rest of World segments due to the need to have separate sales organizations for most of the different countries in which we operate. Due to local economic conditions, however, the average cost of each sales representative is lower in most countries in our EMEA and Rest of World segments as compared to the costs in our North America segment.

Other key operational functions include city planners, editorial, merchant services, customer service, technology and logistics. City planners work with sales teams to optimize deal structure and pricing and manage the category, discount and geographic mix, as well as the cadence of deals in their respective markets. Our editorial department is responsible for creating the written and visual content on the deals we offer. Merchant services representatives work with merchants to plan for increased customer traffic before a deal is offered and serve as an ongoing point of contact for the merchant over the term of a deal. Our customer service department is responsible for answering questions received via phone, email and on public discussion boards regarding purchases, shipping status, returns and other areas of customer inquiry. Our technology team is focused on the design and development of new features and products, maintenance of our websites and development and maintenance of our internal operations systems. Logistics personnel are responsible for managing the flow of merchandise inventory from suppliers to our customers.

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Our websites are hosted at a U.S. data center in Santa Clara, California and international data centers in Asia and Europe. Our data centers host our public-facing websites and applications, as well as our back-end business intelligence systems. We employ security practices to protect and maintain the systems located at our data centers. We have invested in intrusion and anomaly detection tools to try to recognize intrusions to our websites. We engage independent third-party Internet security firms to regularly test the security of our websites and identify vulnerabilities. In financial transactions between our websites and our customers, we use data encryption protocols to secure information while in transit.

Competition

Our business is rapidly evolving and we face competition from a variety of current and potential competitors. Some of our competitors offer deals as an add-on to their core business, and others have adopted a business model similar to ours. As we expand our business into additional categories and subcategories, we will compete with online and offline merchants offering similar products and services. We also compete with businesses that focus on our payment processing and point-of-sale merchant offerings. In addition, we compete with traditional offline coupon and discount services, as well as newspapers, magazines and other traditional media companies that provide coupons and discounts on products and services. We believe the principal competitive factors in our market include the following:

• size of active customer base and breadth merchant relationships;

• mobile penetration;

• understanding of local business trends;

• ability to structure deals to generate positive return on investment for merchants; and

• strength and recognition of brand.

Although we believe that we compete favorably on the factors described above and benefit from scale, we anticipate that larger, more established companies may directly compete with us over time. Many of our current and potential competitors have longer operating histories, significantly greater financial, technical, marketing and other resources and larger customer bases than we do. These factors may allow our competitors to benefit from their existing customer base with lower acquisition costs or to respond more quickly than we can to new or emerging technologies and changes in customer requirements. These competitors may engage in more extensive research and development efforts, undertake more far-reaching marketing campaigns and adopt more aggressive pricing policies, which may allow them to build a larger subscriber base or to monetize that subscriber base more effectively than we do. Our competitors may develop products or services that are similar to our products and services or that achieve greater market acceptance than our products and services.

Seasonality

We believe that some of our offerings experience seasonal buying patterns mirroring that of the larger consumer and e-commerce markets, where demand declines during customary summer vacation periods and increases during the fourth quarter holiday season. We believe that this seasonality pattern has affected, and we expect will continue to affect, our business and quarterly sequential revenue growth rates. We recognized 29.0%, 29.9% and 27.3% of our annual revenue during the fourth quarter of 2014, 2013 and 2012, respectively.

Regulation

We are subject to a number of foreign and domestic laws and regulations that affect companies conducting business on the Internet. Additionally, these laws and regulations may be interpreted differently across domestic and foreign jurisdictions. As a company in a new and rapidly innovating industry, we are exposed to the risk that many of these laws may evolve or be interpreted by regulators or in the courts in ways that could materially affect our business. These laws and regulations may involve taxation, unclaimed property, intellectual property, product liability, travel, distribution, electronic contracts and other communications, competition, consumer protection, the provision of various online payment and point of sale services, employee, merchant and customer privacy and data security or other areas.

The Credit Card Accountability Responsibility and Disclosure Act of 2009 (the "CARD Act"), as well as the laws of most states, contain provisions governing gift cards, gift certificates, stored value or pre-paid cards or coupons ("gift cards"). Groupon vouchers may be included within the definition of "gift cards" under many laws. In addition, certain foreign jurisdictions have laws that govern disclosure and certain product terms and conditions, including restrictions on expiration dates and fees that may

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apply to Groupon vouchers as well as warranty requirements. There are also a number of legislative proposals pending before the U.S. Congress, various state legislative bodies and foreign governments that could affect us, and our global operations may be constrained by regulatory regimes and laws in Europe and other jurisdictions outside the United States that may be more restrictive and adversely impact our business.

Various U.S. laws and regulations, such as the Bank Secrecy Act, the Dodd-Frank Act, the USA PATRIOT Act and the CARD Act impose certain anti-money laundering requirements on companies that are financial institutions or that provide financial products and services. These laws and regulations broadly define financial institutions to include money services businesses such as money transmitters, check cashers and sellers or issuers of stored value. Requirements imposed on financial institutions under these laws include customer identification and verification programs, record retention policies and procedures and transaction reporting. We do not believe that we are a financial institution subject to these laws and regulations.

Intellectual Property

We protect our intellectual property rights by relying on federal, state and common law rights, as well as contractual restrictions. We control access to our proprietary technology by entering into confidentiality and invention assignment agreements with our employees and contractors, and confidentiality agreements with third parties.

                In addition to these contractual arrangements, we also rely on a combination of trade secrets, copyrights, trademarks, service marks, trade dress, domain names and patents to protect our intellectual property.  Groupon and its related entities own a number of trademarks and servicemarks registered or pending in the United States and internationally.  In addition, we own a number of issued U.S. patents, have additional pending patent applications and own copyright registrations.

                Circumstances outside our control could pose a threat to our intellectual property rights and the efforts we have taken to protect our proprietary rights may not be sufficient or effective. Any significant impairment of our intellectual property rights could harm our business or our ability to compete. Also, protecting our intellectual property rights is costly and time-consuming. Any unauthorized disclosure or use of our intellectual property could make it more expensive to do business and harm our operating results.

                Companies in the Internet, social media technology and other industries may own large numbers of patents, copyrights and trademarks or other intellectual property rights and may request license agreements, threaten litigation or file suit against us based on allegations of infringement or other violations of intellectual property rights. We are currently subject to, and expect to face in the future, lawsuits and allegations that we have infringed the intellectual property rights of third parties, including our competitors and non-practicing entities. As we face increasing competition and as our business grows, we will likely face more claims of infringement, and may experience an adverse result which could impact our business and/or our operating results.

Employees

    As of December 31, 2014, there were 3,525 employees in our North America segment, consisting of 1,369 sales representatives and 2,156 corporate, operational and customer service representatives, 3,591 employees in our EMEA segment, consisting of 1,896 sales representatives and 1,695 corporate, operational and customer service representatives, and 4,727 employees in our Rest of World segment, consisting of 1,719 sales representatives and 3,008 corporate, operational and customer service representatives.

Executive Officers

The following table sets forth information about our executive officers as of December 31, 2014:

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Name	Age	Position
Eric Lefkofsky	45	Co-Founder, Chief Executive Officer and Director
Jason Child	46	Chief Financial Officer
Dane Drobny	47	General Counsel and Corporate Secretary
Sri Viswanath	39	Chief Technology Officer
Brian Stevens	40	Chief Accounting Officer

Eric Lefkofsky is a co-founder of the Company, has served as the Company's Executive Chairman since its inception until August 5, 2013, and served in the Office of the Chief Executive from February 28, 2013 until his appointment as Chief Executive Officer on August 5, 2013. Mr. Lefkofsky is a co-founder of Echo Global Logistics, Inc. (NASDAQ: ECHO) and served on its board of directors from February 2005 to December 2012. Mr. Lefkofsky is a co-founder of InnerWorkings, Inc. (NASDAQ: INWK) and served on its board of directors from August 2008 to October 2012. In 2008, Mr. Lefkofsky co-founded Lightbank LLC, a private investment firm specializing in information technology companies, and has served as a manager since that time. In April 2006, Mr. Lefkofsky co-founded MediaBank, LLC (now Media Ocean), an electronic exchange and database that automates the procurement and administration of advertising media, and has served as a director or manager since that time. Mr. Lefkofsky also serves on the board of directors of Children's Memorial Hospital, the board of trustees of the Steppenwolf Theatre, the board of trustees of the Art Institute of Chicago and the board of trustees of the Museum of Science and Industry. Mr. Lefkofsky also serves on the board of directors of World Business Chicago. Mr. Lefkofsky is an Adjunct Professor at the University of Chicago Booth School of Business. Mr. Lefkofsky holds a bachelor's degree from the University of Michigan and a Juris Doctor degree from the University of Michigan Law School.

Jason Child has served as our Chief Financial Officer since December 2010. From March 1999 through December 2010, Mr. Child held several positions with Amazon.com, Inc. (NASDAQ: AMZN), including Vice President of Finance, International from April 2007 to December 2010, Vice President of Finance, Asia from July 2006 to July 2007, Director of Finance, Amazon Germany from April 2004 to July 2006, Director of Investor Relations from April 2003 to April 2004, Director of Finance, Worldwide Application Software from November 2001 to April 2003, Director of Finance, Marketing and Business Development from November 2000 to November 2001 and Global Controller from October 1999 to November 2000. Prior to joining Amazon.com, Mr. Child spent more than seven years as a C.P.A. and a consulting manager at Arthur Andersen. Mr. Child received his Bachelor of Arts from the Foster School of Business at the University of Washington.

Dane Drobny has served as our General Counsel and Corporate Secretary since July 2014.  Prior to joining Groupon, Mr. Drobny was Senior Vice President, General Counsel and Corporate Secretary at Sears Holdings Corporation (NASDAQ: SHLD) from May 2010 to June 2014. Prior to joining Sears Holdings, he spent 17 years at the international law firm of Winston & Strawn LLP, most recently as a partner.  Mr. Drobny holds a bachelor's degree from Colgate University and a Juris Doctor degree from Washington University School of Law. 

Sri Viswanath has served as our Chief Technology Officer since October 2014 and our Senior Vice President of Engineering and Operations from April 2013 to October 2014.  Prior to joining Groupon, he was Vice President of research and development for mobile computing at VMware, Inc. (NYSE: VMW) from September 2012 to April 2013. Prior to VMware, Mr. Viswanath was Senior Vice President of Engineering at Glam Media, Inc. and general manager of its publisher products group from November 2011 to August 2012. He also worked at Ning, Inc. from July 2008 to November 2011, most recently as Senior Vice President of Engineering. Before that, he worked at Sun Microsystems Inc. where he led the development of a number of open-source and business-to-business products from March 1999 to July 2008.  Mr. Viswanath received his bachelors degree from Bangalore University in India, his Masters in Computer Science from Clemson University, and Masters in Management from Stanford University.

Brian Stevens has served as our Chief Accounting Officer since September 2012. Prior to joining Groupon, Mr. Stevens spent 16 years with KPMG LLP, most recently as an audit partner from October 2007 through August 2012. Mr. Stevens spent five years in KPMG's Department of Professional Practice (April 2003 to June 2006 and July 2008 to June 2010) and was a practice fellow at the Financial Accounting Standards Board from July 2006 through June 2008. Mr. Stevens is a member of the American Institute of Certified Public Accountants and serves on its Financial Reporting Executive Committee (FinREC). Mr. Stevens received his Bachelor of Science from the University of Illinois at Urbana-Champaign.

Available Information

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The Company electronically files reports with the SEC. The public may read and copy any materials the Company has filed with the SEC at the SEC's Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. In addition, the SEC maintains an Internet site (www.sec.gov) that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC. Copies of the Company's Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are also available free of charge through the Company's website (www.groupon.com), as soon as reasonably practicable after electronically filing with or otherwise furnishing such information to the SEC, and are available in print to any stockholder who requests it. The Company's Code of Conduct, Corporate Governance Guidelines and committee charters are also posted on the site. The Company uses its Investor Relations website (investor.groupon.com) as a means of disclosing material non-public information and for complying with its disclosure obligations under Regulation FD. 

ITEM 1A. RISK FACTORS

Our business, prospects, financial condition, operating results and the trading price of our Class A common stock could be materially adversely affected by any of these risks, as well as other risks not currently known to us or that we currently consider immaterial. In assessing the risks described below, you should also refer to the other information contained in this Annual Report on Form 10-K, including Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A) and the consolidated financial statements and the related notes in Part II, Item 8. Financial Statements and Supplementary Data of this Annual Report on Form 10-K.

Risks Related to Our Business

Our revenue and operating results may continue to be volatile.

Our revenue and operating results will continue to vary from quarter to quarter due to the rapidly evolving nature of our business. We believe that our revenue growth and ability to achieve and maintain profitability will depend, among other factors, on our ability to:

• acquire new customers and retain existing customers;

• attract new merchants and retain existing merchants who wish to offer deals through the sale of Groupons;

• effectively address and respond to challenges in international markets;

• expand the number, variety and relevance of products and deals we offer, particularly as we attempt to build a more complete local marketplace;

• continue to achieve mobile adoption as customer usage continues to shift toward mobile devices;

• increase the awareness of our brand domestically and internationally;

• successfully achieve the anticipated benefits of business combinations or acquisitions;

• provide a superior customer service experience for our customers and merchants;

• avoid interruptions to our services, including as a result of cybersecurity breaches;

• respond to changes in consumer and merchant access to and use of the Internet and mobile devices;

• react to challenges from existing and new competitors; and

• respond to seasonal changes in supply and demand.

In addition, our margins and profitability may depend on our product sales mix, our geographic revenue mix and merchant pricing terms. For example, sales in our Goods category, which typically carry lower margins than sales in our Local category, have grown faster in recent periods, which has resulted in lower margins and profitability during those periods. Accordingly, our profitability may vary significantly from quarter to quarter.

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Our strategy to grow our local commerce marketplaces may not be successful and may expose us to additional risks.

One of our key objectives is to expand upon our traditional daily deals business by building out more extensive local commerce marketplaces. This strategy has required us to devote significant resources to attracting and retaining merchants who are willing to run deals on a continuous basis with us in order to build a significant inventory for our customers, as well as continuing management focus and attention. We have accepted, and expect to continue to accept, a lower portion of the gross billings from some of our merchants as we expand our marketplaces. In addition, we are continuously refining our process for presenting the most relevant deals to our customers based on their personal preferences. If we are not successful in pursuing these objectives, our business, financial position and results of operations could be harmed.

Our international operations are subject to increased challenges, and our inability to adapt to the varied commercial and regulatory landscapes of our international markets may adversely affect our business.

Our ability to grow our business in our international markets requires management attention and resources and requires us to localize our services to conform to a wide variety of local cultures, business practices, laws and policies. The different commercial and Internet infrastructure in other countries may make it more difficult for us to replicate our business model. In many countries, we compete with local companies that understand the local market better than we do, and we may not benefit from first-to-market advantages. We are subject to risks of doing business internationally, including the following:

• our ability to maintain merchant and customer satisfaction such that our marketplace will continue to attract high quality merchants;

• our ability to successfully respond to macroeconomic challenges, including by optimizing our deal mix to take into account consumer preferences at a particular point in time;

• political, economic and civil instability and uncertainty (including acts of terrorism, civil unrest, labor unrest, violence and outbreaks of war);

• currency exchange rate fluctuations;

• strong local competitors, many of whom have been in the market longer than us or have greater resources in the local market;

• different regulatory requirements, including regulation of gift cards and coupon terms, Internet services, professional selling, distance selling, bulk emailing, privacy and data protection, banking and money transmitting, that may limit or prevent the offering of our services in some jurisdictions, cause unanticipated compliance expenses or limit our ability to enforce contractual obligations;

• difficulties in integrating with local payment providers, including banks, credit and debit card networks and electronic funds transfer systems;

• different employee/employer relationships and the existence of workers' councils and labor unions;

• shorter payment cycles and greater problems in collecting accounts receivable;

• higher Internet service provider costs;

• seasonal reductions in business activity;

• expenses associated with localizing our products, including offering customers the ability to transact business in the local currency; and

• differing intellectual property laws.

We are subject to complex foreign and U.S. laws and regulations that apply to our international operations, including data privacy and protection requirements, the Foreign Corrupt Practices Act, the UK Anti-Bribery Act and similar local laws prohibiting certain payments to government officials, banking and payment processing regulations, and anti-competition regulations, among others. The cost of complying with these various and sometimes conflicting laws and regulations is substantial. We have implemented policies and procedures to ensure compliance with these laws and regulations, however, we cannot assure

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you that our employees, contractors, or agents will not violate our policies. Changing laws, regulations and enforcement actions in the U.S. and throughout the world could harm our business.    If commercial and regulatory constraints in our international markets restrict our ability to conduct our operations or execute our strategic plan, our business may be adversely affected.

Our financial results will be adversely affected if we are unable to execute on our marketing strategy.

Our marketing strategy is primarily focused on customer activation and mobile application downloads, as well as increasing awareness of our shift to offer more complete local commerce marketplaces. We increased our marketing expense to $269.0 million during 2014 as compared to $214.8 million during 2013. Additionally, our marketing activities also include elements that are not presented as "Marketing" on our consolidated statements of operations, such as order discounts and free shipping on merchandise sales. If our assumptions regarding our marketing activities and strategies prove incorrect, our ability to generate profits from our investments may be less than we have assumed. In such case, we may need to increase expenses or otherwise alter our strategy and our results of operations could be negatively impacted.

If we fail to retain our existing customers or acquire new customers, our revenue and business will be harmed.

We must continue to retain and acquire customers that make purchases on our platform in order to increase revenue and achieve consistent profitability. As our customer base continues to evolve, it is possible that the composition of our customers may change in a manner that makes it more difficult to generate revenue to offset the loss of existing customers and the costs associated with acquiring and retaining customers. If customers do not perceive our offerings to be attractive or if we fail to introduce new and more relevant deals, we may not be able to retain or acquire customers at levels necessary to grow our business and profitability. For example, Pages, which provides our customers with information about merchants, including tips from customers, may not result in additional revenue from new or existing customers sufficient to offset the cost of building and maintaining this platform. If we are unable to acquire new customers in numbers sufficient to grow our business and offset the number of existing active customers that cease to make purchases, the revenue we generate may decrease and our operating results will be adversely affected.

Our future success depends upon our ability to retain and add high quality merchants.

We depend on our ability to attract and retain merchants that are prepared to offer products or services on compelling terms through our marketplaces and provide our customers with a good experience. We do not have long-term arrangements to guarantee the availability of deals that offer attractive quality, value and variety to customers or favorable payment terms to us. Currently, when a merchant works with us to offer a deal for its products or services, it receives an agreed-upon portion of the total proceeds from each Groupon sold and we retain the rest. If merchants decide that utilizing our services no longer provides an effective means of attracting new customers or selling their goods and services, they may require a higher portion of the total proceeds from each Groupon sold. Additionally, if we are unsuccessful in our efforts to introduce services to merchants as part of our initiatives to achieve adoption of our tablet-based platform for merchants, we will not experience a corresponding growth in our merchant pool sufficient to offset the cost of these initiatives. We must continue to attract and retain merchants in order to increase revenue and profitability. If new merchants do not find our marketing and promotional services effective, or if existing merchants do not believe that utilizing our services provides them with a long-term increase in customers, revenue or profits, they may stop making offers through our marketplaces. We also have seen that some competitors will accept lower margins, or negative margins, to attract attention and acquire new customers. If competitors engage in group buying initiatives in which merchants receive a higher portion of the purchase price than we currently offer, or if we target merchants who will only agree to run deals if they receive a higher portion of the proceeds, we may receive a lower portion of the gross billings on deals offered through our marketplaces. In addition, we may experience attrition in our merchants in the ordinary course of business resulting from several factors, including losses to competitors and merchant closures or bankruptcies. If we are unable to attract new merchants in numbers sufficient to grow our business, or if merchants are unwilling to offer products or services with compelling terms through our marketplaces or offer favorable payment terms to us, our operating results will be adversely affected.

If our efforts to market, advertise and promote products and services from our existing merchants are not successful, or if our existing merchants do not believe that utilizing our services provides them with a long-term increase in customers, revenue or profits, we may not be able to retain or attract merchants in sufficient numbers to grow our business or we may incur significantly higher marketing expenses or reduce margins, as experienced in 2014, in order to attract new merchants. A significant increase in merchant attrition or decrease in merchant growth would have an adverse effect on our business, financial condition and results of operations.

We may be subject to breaches of our information technology systems, which could harm our relationships with our customers and merchants, subject us to negative publicity and litigation, and cause substantial harm to our business.

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In operating a global online business, we and our third party service providers maintain significant proprietary information and manage large amounts of personal data and confidential information about our employees, customers and merchants.  Because of our high profile and the number of customer records we maintain, we and the third party providers are at an increased risk of attacks on our systems.

Our risk and exposure to these matters remains heightened because of, among other things, the evolving nature of these threats, our prominent size and scale, the large number of transactions that we process, our payment processing and point of sale offerings, our expanded geographic footprint and international presence, our use of open source software and technologies, the outsourcing of some of our business operations and continued threats of cyber-attacks.  Although cybersecurity and the continued development and enhancement of our controls, processes and practices designed to protect our systems, computers, software, data and networks from attack, damage or unauthorized access are a high priority for us, this may not successfully protect our systems against all vulnerabilities, including technologies developed to bypass our security measures.  In addition, outside parties may attempt to fraudulently induce employees, merchants or customers to disclose sensitive information in order to gain access to our secure systems and networks.

As cyber threats continue to evolve, we may be required to expend significant additional resources to continue to modify or enhance our protective measures or to investigate and remediate any information security vulnerabilities.  Further, because the techniques used to gain access to, or sabotage, systems often are not recognized until launched against a target, we may be unable to anticipate the correct methods necessary to defend against these types of attacks.  Any actual breach, the perceived threat of a breach or a perceived breach, could cause our customers and merchants to cease doing business with us, subject us to lawsuits, regulatory fines or other action or liability, which would harm our business, financial condition and results of operations.

We may incur losses in the future as we expand our business.

We had an accumulated deficit of $922.0 million as of December 31, 2014. We anticipate that our financial results will be impacted as we continue to invest in our growth, through increased spending in some areas and through accepting a lower portion of the proceeds from our deals, as we attempt to add more merchants to our marketplaces. These efforts may prove more difficult than we currently anticipate, and we may not succeed in realizing the benefits of these efforts in a short time frame, or at all. Many of our efforts to generate revenue from our business are new and unproven, and any failure to increase our revenue, as well as any changes in our mix of sales between our higher and lower margin categories, could prevent us from attaining or increasing, or could reduce, our profitability. We cannot be certain that we will be able to attain or increase profitability on a quarterly or annual basis. If we are unable to effectively manage these risks and difficulties as we encounter them, our business, financial condition and results of operations may suffer.

We operate in a highly competitive industry with relatively low barriers to entry, and must compete successfully in order to grow our business.

We expect competition in e-commerce generally, and group buying in particular, to continue to increase. A substantial number of group buying sites that attempt to replicate our business model are operating around the world. In addition to such competitors, we expect to increasingly compete against other large businesses who offer deals similar to ours as an add-on to their core business. We also expect to compete against other Internet sites and mobile applications that serve niche markets and interests. In some of our categories, such as goods, travel and entertainment, we compete against much larger companies who have more resources and significantly larger scale. In addition, we compete with traditional offline coupon and discount services, as well as newspapers, magazines and other traditional media companies who provide coupons and discounts on products and services.

We believe that our ability to compete successfully depends upon many factors both within and beyond our control, including the following:

• the size and composition of our customer base and the number of merchants we feature;

• the timing and market acceptance of deals we offer, including the developments and enhancements to those deals offered by us or our competitors;

• customer and merchant service and support efforts;

• selling and marketing efforts;

• ease of use, performance, price and reliability of services offered either by us or our competitors;

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• our ability to generate large volumes of sales, particularly with respect to goods and travel deals;

• our ability to cost-effectively manage our operations; and

• our reputation and brand strength relative to our competitors.

Many of our current and potential competitors have longer operating histories, significantly greater financial, marketing and other resources and larger customer bases than we do. These factors may allow our competitors to benefit from their existing customer base with lower customer acquisition costs or to respond more quickly than we can to new or emerging technologies and changes in consumer habits. These competitors may engage in more extensive research and development efforts, undertake more far-reaching marketing campaigns and adopt more aggressive pricing policies, which may allow them to build larger customer bases or generate revenue from their customer bases more effectively than we do. Our competitors may offer deals that are similar to the deals we offer or that achieve greater market acceptance than the deals we offer. This could attract customers away from our websites and applications, reduce our market share and adversely impact our gross margin. In addition, we are dependent on some of our existing or potential competitors for banner advertisements and other marketing initiatives to acquire new customers. Our ability to utilize their platforms to acquire new customers may be adversely affected if they choose to compete more directly with us or prevent us from using their services.

Our operating cash flow and results of operations could be adversely impacted if we change our merchant payment terms or our revenue does not grow.

Our merchant payment terms and revenue growth have historically provided us with operating cash flow to fund our working capital needs. Our merchant arrangements are generally structured such that we collect cash up front when our customers purchase Groupons and make payments to our merchants at a subsequent date, either on a fixed schedule or upon redemption by customers. We currently pay our merchants upon redemption in many deals in our international markets, but we may continue to move toward offering payments on a fixed schedule in those markets.

Our accrued merchant and supplier payable balance increased from $752.9 million as of December 31, 2013, to $910.6 million as of December 31, 2014, due primarily to our acquisition of Ticket Monster and the continued growth of our Goods category in 2014. We have used the operating cash flow provided by our merchant payment terms and revenue growth to fund our working capital needs. If we offer our merchants more favorable or accelerated payment terms or our revenue does not grow in the future, our operating cash flow and results of operations could be adversely impacted and we may have to seek alternative financing to fund our working capital needs.

Our success is dependent upon our ability to provide a superior mobile experience for our customers, and our customers' continued ability to access our offerings through mobile devices.

In the fourth quarter of 2014, more than 50% of our global transactions were completed on mobile devices. Additionally, almost 110 million people have downloaded our mobile applications worldwide as of January 31, 2015. In order to continue to grow our mobile transactions, it is critical that our applications work well with a range of mobile technologies, systems, networks and standards. Our business may be adversely affected if our customers choose not to access our offerings on their mobile devices or use mobile devices that do not offer access to our mobile applications.

Our business depends on our ability to maintain and scale the network infrastructure necessary to send our emails and operate our websites, mobile applications and transaction processing systems, and any significant disruption in service on our email infrastructure, websites, mobile applications or transaction processing systems could result in a loss of subscribers, customers or merchants.

Customers access our deals through our websites and mobile applications, as well as via emails that are often targeted by location, purchase history and personal preferences. Customers can also access our deal offerings indirectly through search engines and other indirect channels. Our reputation and ability to acquire, retain and serve our current customers and potential customers are dependent upon the reliable performance of our websites, mobile applications, email delivery and transaction processing systems and the underlying network infrastructure. As our customer base and the amount of information shared on our websites and applications continue to grow, we will need an increasing amount of network capacity and computing power. We have spent and expect to continue to spend substantial amounts on data centers and equipment and related network infrastructure to handle the traffic on our websites and applications. The operation of these systems is expensive and complex and could result in operational failures. In the event that our subscriber base or the amount of traffic and transactions on our websites and applications grows more quickly than anticipated, we may be required to incur significant additional costs. Interruptions in these systems, whether due to system failures, computer viruses, physical or electronic break-ins or otherwise (including spam filters preventing

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emails from reaching current and potential customers), could affect the security or availability of our websites and applications, and prevent our customers from accessing our services. If we do not maintain or expand our network infrastructure successfully or if we experience operational failures or a prolonged disruption in the availability of a significant search engine, we could lose current and potential customers and merchants, which could harm our operating results and financial condition.

In addition, a portion of our network infrastructure is hosted by third party providers. Any failure of these providers to handle existing or increased traffic and transactions could significantly harm our business. Any financial or other difficulties these providers face may adversely affect our business, and we exercise little control over these providers, which increases our vulnerability to problems with the services they provide.

If our emails are not delivered and accepted, or are routed by email providers in a less favorable way than other emails, our business may be substantially harmed.

If email providers implement new or more restrictive email delivery policies it may become more difficult to deliver emails to customers. For example, certain email providers, including Google, categorize our emails as "promotional," and these emails are directed to an alternate, and less readily accessible, section of a customer's inbox. If email providers materially limit or halt the delivery of our emails, or if we fail to deliver emails to customers in a manner compatible with email providers’ email handling or authentication technologies, our operating results and financial condition could be substantially harmed. In addition, if we are placed on "spam" lists or lists of entities that have been involved in sending unwanted, unsolicited emails, our ability to contact customers through email could be significantly restricted.

We purchase and sell some products from indirect suppliers, which increases our risk of litigation and other losses.

We source merchandise both directly from brand owners and indirectly from retailers and third party distributors, and we often take title to the goods before we offer them for sale to our customers.  Further, some brand owners, retailers and third party distributors may be unwilling to offer products for sale on the Internet or through Groupon in particular, which could have an adverse impact on our ability to source and offer popular products. By selling merchandise sourced from parties other than the brand owners, we are subject to an increased risk that the merchandise may be damaged or non-authentic, which could result in potential liability under applicable laws, regulations, agreements and orders, and increase the amount of returned merchandise. In addition, brand owners may take legal action against us, which even if we prevail could result in costly litigation, generate adverse publicity for us, and have a material adverse impact on our business, financial condition and results of operations.

We are subject to inventory management and order fulfillment risks as a result of our Goods category.

We purchase much of the merchandise that we offer for sale to our customers, and we expect to increase the percentage of merchandise that we offer directly for sale as compared to merchandise that our customers purchase directly from third parties. The demand for products can change for a variety of reasons, including customer preference, quality, seasonality, and the perceived value from customers of purchasing the product through us. In addition, we have a limited historical basis upon which to predict customer demand for the products. If we are unable to adequately predict customer demand and efficiently manage our inventory, we could either have an excess or a shortage of inventory, either of which would have a material adverse effect on our business.

Purchasing the goods ourselves prior to the sale also means that we will be required to fulfill orders on a timely, efficient and cost-effective basis.  Many other online retailers have significantly larger inventory balances and therefore are able to rely on past experience and economies of scale to optimize their order fulfillment. Because we rely on third party logistics providers for much of our order fulfillment and delivery, many parts of our supply chain are outside our control. Delays or inefficiencies in our processes, or those of our third party logistics providers, could subject us to additional costs, as well as customer dissatisfaction, which would adversely affect our business. Additionally, we assume the risks of inventory damage, theft and obsolescence, as well as risks of price erosion for these products. These risks are especially significant because some of the merchandise we sell is characterized by seasonal trends, fashion trends, obsolescence and price erosion and because we sometimes make large purchases of particular types of inventory. Our success will depend on our ability to sell our inventory rapidly, the ability of our buying staff to purchase inventory at attractive prices relative to its resale value and our ability to manage customer returns and other costs. If we are unsuccessful in any of these areas, we may be forced to sell our inventory at a discount or loss.

The integration of our international operations with our North American technology platform may result in business interruptions.

We currently use a common technology platform in our North America segment to operate our business and are close to fully implementing this platform in most EMEA counties but have not yet substantially rolled out this platform to the countries in our Rest of World segment. Such changes to our technology platform and related software carry risks such as cost overruns,

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project delays and business interruptions and delays. If we experience a material business interruption as a result of this process, it could have a material adverse effect on our business, financial position and results of operations and could cause the market value of our Class A common stock to decline.

We are involved in pending litigation and an adverse resolution of such litigation may adversely affect our business, financial condition, results of operations and cash flows.

We are involved in litigation regarding, among other matters, patent, consumer, securities and employment issues. Litigation can be expensive, time-consuming and disruptive to normal business operations. The results of complex legal proceedings are often uncertain and difficult to predict. An unfavorable outcome with respect to any of these lawsuits could have a material adverse effect on our business, financial condition, results of operations or cash flows. For additional information regarding these and other lawsuits in which we are involved, see Note 8 "Commitments and Contingencies" to the consolidated financial statements.

An increase in our refund rates could reduce our liquidity and profitability.

As we increase our revenue and expand our product offerings, our customer refund rates may exceed historical levels. A downturn in general economic conditions may also increase our refund rates. An increase in our refund rates could significantly reduce our liquidity and profitability.

We use a statistical model that incorporates the following data inputs and factors to estimate future refunds: historical refund experience developed from millions of deals featured on our website, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in our practices in response to refund experience or economic trends that might impact customer demand. Our actual level of refund claims could prove to be greater than the level of refund claims we estimate. If our refund reserves are not adequate to cover future refund claims, this inadequacy could have a material adverse effect on our profitability.

Our standard agreements with our merchants generally limit the time period during which we may seek reimbursement for customer refunds or claims. Our customers may make claims for refunds with respect to which we are unable to seek reimbursement from our merchants. Our inability to seek reimbursement from our merchants for refund claims could have an adverse effect on our liquidity and profitability.

The loss of one or more key members of our management team, or our failure to attract, integrate and retain other highly qualified personnel in the future could harm our business.

In order to be successful, we must attract, retain and motivate executives and other key employees, including those in managerial, technical and sales positions. Hiring and retaining qualified executives, engineers and qualified sales representatives are critical to our success, and competition for experienced and well qualified employees can be intense. In order to attract and retain executives and other key employees in a competitive marketplace, we must provide a competitive compensation package, including cash and share-based compensation. Our primary form of share-based incentive award is restricted stock units. If the anticipated value of such share-based incentive awards does not materialize, if our share-based compensation otherwise ceases to be viewed as a valuable benefit, or if our total compensation package is not viewed as being competitive, our ability to attract, retain, and motivate executives and key employees could be weakened. The failure to successfully hire executives and key employees or the loss of any executives and key employees could have a significant impact on our operations.

An increase in the costs associated with maintaining our international operations could adversely affect our results of operations.

Certain factors may cause our international costs of doing business to exceed our comparable costs in North America. For example, in some countries, expanding our product and service offerings may require a close commercial relationship with one or more local banks, a shared ownership interest with a local entity or registration as a bank under local law. Such requirements may reduce our revenue, increase our costs or limit the scope of our activities in particular countries.

Further, because our international revenue is denominated in foreign currencies, we could become subject to increased difficulties in repatriating money without adverse tax consequences and increased risks relating to foreign currency exchange rate fluctuations. For example, the U.S. dollar has appreciated significantly against the Euro in recent periods. Further, we could be subject to the application of U.S. tax rules to acquired international operations and local taxation of our fees or of transactions on our websites.

We conduct portions of certain functions, including technology and product development, customer support and other

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operations, in regions outside of North America. Any factors which reduce the anticipated benefits, including cost efficiencies and productivity improvements, associated with providing these functions outside of North America, including increased regulatory costs associated with our international operations, could adversely affect our business.

We may be subject to additional unexpected regulation which could increase our costs or otherwise harm our business.

The application of certain laws and regulations to Groupons, as a new product category, is uncertain. These include laws and regulations such as the CARD Act, and, in certain instances, potentially unclaimed and abandoned property laws. In addition, from time to time, we may be notified of additional laws and regulations which governmental organizations or others may claim should be applicable to our business. If we are required to alter our business practices as a result of any laws and regulations, our revenue could decrease, our costs could increase and our business could otherwise be harmed. In addition, the costs and expenses associated with defending any actions related to such additional laws and regulations and any payments of related penalties, judgments or settlements could adversely impact our profitability. As we expand into new lines of business and new geographies, we will become subject to additional laws and regulations.

We may have exposure to greater than anticipated tax liabilities.

We are subject to income taxes in the United States (federal and state) and numerous foreign jurisdictions. Tax laws, regulations, and administrative practices in various jurisdictions may be subject to significant change due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating our provision and accruals for these taxes. Our income tax obligations are based on our corporate operating structure, including the manner in which we develop, value and use our intellectual property and the scope of our international operations.

The tax laws applicable to our international business activities, including the laws of the United States and other jurisdictions, are subject to interpretation. The taxing authorities of the jurisdictions in which we operate may challenge our methodologies for valuing developed technology or intercompany arrangements, which could increase our worldwide effective tax rate and harm our financial position and results of operations. In addition, there are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. Our effective tax rates could be adversely affected by earnings being lower than anticipated in jurisdictions where we have lower statutory rates and higher than anticipated in jurisdictions where we have higher statutory rates, losses incurred in jurisdictions for which we are not able to realize the related tax benefit, changes in foreign currency exchange rates, entry into new businesses and geographies and changes to our existing businesses, acquisitions (including integrations) and investments, changes in our deferred tax assets and liabilities and their valuation, and changes in the relevant tax, accounting, and other laws, regulations, administrative practices, principles, and interpretations, including fundamental changes to the tax laws applicable to corporate multinationals. The U.S., many countries in the European Union, and a number of other countries are actively considering changes in this regard. Developments in an audit, litigation, or the relevant laws, regulations, administrative practices, principles, and interpretations could have a material effect on our operating results or cash flows in the period or periods for which that development occurs, as well as for prior and subsequent periods.

We also are subject to regular review and audit by both U.S. federal and state and foreign tax authorities. Any adverse outcome of such a review or audit could have a negative effect on our financial position and results of operations. In addition, the determination of our worldwide provision for income taxes and other tax liabilities requires significant judgment by management, and there are many transactions where the ultimate tax determination is uncertain. Although we believe that our estimates are reasonable, the ultimate tax outcome may differ from the amounts recorded in our financial statements and may materially affect our financial results in the period or periods for which such determination is made.

The enactment of legislation implementing changes in the U.S. taxation of international business activities or the adoption of other tax reform policies could materially affect our financial position and results of operations.

The current administration continues to make public statements indicating that it has made international tax reform a priority, and members of the U.S. Congress have conducted hearings and proposed a wide variety of potential changes. Certain changes to U.S. tax laws, including limitations on the ability to defer U.S. taxation on earnings outside of the United States until those earnings are repatriated to the United States, could affect the tax treatment of our foreign earnings, as well as cash and cash equivalent balances we currently maintain outside of the United States. Due to the large and expanding scale of our international business activities, any changes in the U.S. taxation of such activities may increase our worldwide effective tax rate and harm our financial position and results of operations.

The implementation of the CARD Act and similar state and foreign laws may harm our business and results of operations.

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It is not clear at this time, but Groupons may be considered gift cards, gift certificates, stored value cards or prepaid cards and therefore governed by, among other laws, the CARD Act, and state laws governing gift cards, stored value cards and coupons. Other foreign jurisdictions have similar laws in place, in particular European jurisdictions where the European E-Money Directive regulates the business of electronic money institutions. Many of these laws contain provisions governing the use of gift cards, gift certificates, stored value cards or prepaid cards, including specific disclosure requirements and prohibitions or limitations on the use of expiration dates and the imposition of certain fees. For example, if Groupons are subject to the CARD Act and are not included in the exemption for promotional programs, it is possible that the purchase value, which is the amount equal to the price paid for the Groupon, or the promotional value, which is the add-on value of the Groupon in excess of the price paid, or both, may not expire before the later of (i) five years after the date on which the Groupon was issued; (ii) the Groupon's stated expiration date (if any); or (iii) a later date provided by applicable state law. We and several merchants are currently defendants in purported class action litigation that has been filed in federal and state court claiming that Groupons are subject to the CARD Act and various state laws governing gift cards and that the defendants have violated these laws by issuing Groupons with expiration dates and other restrictions. In the event that it is determined that Groupons are subject to the CARD Act or any similar state or foreign law or regulation, and are not within various exemptions that may be available to Groupon under the CARD Act or under some of the various state or foreign jurisdictions, our liabilities with respect to unredeemed Groupons may be materially higher than the amounts shown in our financial statements and we may be subject to additional fines and penalties. In addition, if federal or state laws require that the face value of Groupons have a minimum expiration period beyond the period desired by a merchant for its promotional program, or no expiration period, this may affect the willingness of merchants to issue Groupons in jurisdictions where these laws apply.

If we are required to materially increase the estimated liability recorded in our financial statements with respect to unredeemed Groupons, our results from operations could be materially and adversely affected.

In certain states and foreign jurisdictions, Groupons may be considered a gift card. Some of these states and foreign jurisdictions include gift cards under their unclaimed and abandoned property laws which require companies to remit to the government the value of the unredeemed balance on the gift cards after a specified period of time (generally between one and five years) and impose certain reporting and record-keeping obligations. We do not remit any amounts relating to unredeemed Groupons based on our assessment of applicable laws. The analysis of the potential application of the unclaimed and abandoned property laws to Groupons is complex, involving an analysis of constitutional and statutory provisions and factual issues, including our relationship with customers and merchants and our role as it relates to the issuance and delivery of a Groupon. In the event that one or more states or foreign jurisdictions successfully challenges our position on the application of its unclaimed and abandoned property laws to Groupons, or if the estimates that we use in projecting the likelihood of Groupons being redeemed prove to be inaccurate, our liabilities with respect to unredeemed Groupons may be materially higher than the amounts shown in our financial statements. If we are required to materially increase the estimated liability recorded in our financial statements with respect to unredeemed gift cards, our net income could be materially and adversely affected. Moreover, a successful challenge to our position could subject us to penalties or interest on unreported and unremitted sums, and any such penalties or interest would have a further material adverse impact on our net income.

Government regulation of the Internet and e-commerce is evolving, and unfavorable changes or failure by us to comply with these regulations could substantially harm our business and results of operations.

We are subject to general business regulations and laws as well as regulations and laws specifically governing the Internet and e-commerce. Existing and future regulations and laws could impede the growth of the Internet or other online services. These regulations and laws may involve taxation, tariffs, subscriber privacy, anti-spam, data protection, content, copyrights, distribution, electronic contracts and other communications, consumer protection, the provision of online payment services and the characteristics and quality of services. It is not clear how existing laws governing issues such as property ownership, sales and other taxes, libel and personal privacy apply to the Internet as the vast majority of these laws were adopted prior to the advent of the Internet and do not contemplate or address the unique issues raised by the Internet or e-commerce. In addition, it is possible that governments of one or more countries may seek to censor content available on our websites and applications or may even attempt to completely block our emails or access to our websites. Adverse legal or regulatory developments could substantially harm our business. In particular, in the event that we are restricted, in whole or in part, from operating in one or more countries, our ability to retain or increase our customer base may be adversely affected and we may not be able to maintain or grow our revenue as anticipated.

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New tax treatment of companies engaged in Internet commerce may adversely affect the commercial use of our services and our financial results.

Due to the global nature of the Internet, it is possible that various states or foreign countries might attempt to regulate our transmissions or levy sales, income or other taxes relating to our activities. Tax authorities at the international, federal, state and local levels are currently reviewing the appropriate treatment of companies engaged in Internet commerce. New or revised international, federal, state or local tax regulations may subject us or our customers to additional sales, income and other taxes. We cannot predict the effect of current attempts to impose sales, income or other taxes on commerce over the Internet. New or revised taxes and, in particular, sales taxes, VAT and similar taxes would likely increase the cost of doing business online and decrease the attractiveness of advertising and selling goods and services over the Internet. New taxes could also create significant increases in internal costs necessary to capture data, and collect and remit taxes. Any of these events could have an adverse effect on our business and results of operations.

Failure to comply with federal, state and international privacy laws and regulations, or the expansion of current or the enactment of new privacy laws or regulations, could adversely affect our business.

A variety of federal, state and international laws and regulations govern the collection, use, retention, sharing and security of consumer data. The existing privacy-related laws and regulations are evolving and subject to potentially differing interpretations. In addition, various federal, state and foreign legislative and regulatory bodies may expand current or enact new laws regarding privacy matters. For example, recently there have been Congressional hearings and increased attention to the capture and use of location-based information relating to users of smartphones and other mobile devices. We have posted privacy policies and practices concerning the collection, use and disclosure of subscriber data on our websites and applications. Several Internet companies have incurred substantial penalties for failing to abide by the representations made in their privacy policies and practices. In addition, several states have adopted legislation that requires businesses to implement and maintain reasonable security procedures and practices to protect sensitive personal information and to provide notice to consumers in the event of a security breach. Any failure, or perceived failure, by us to comply with our posted privacy policies or with any data-related consent orders, Federal Trade Commission requirements or orders or other federal, state or international privacy or consumer protection-related laws, regulations or industry self-regulatory principles could result in claims, proceedings or actions against us by governmental entities or others or other liabilities, which could adversely affect our business. In addition, a failure or perceived failure to comply with industry standards or with our own privacy policies and practices could result in a loss of subscribers or merchants and adversely affect our business. Federal, state and international governmental authorities continue to evaluate the privacy implications inherent in the use of third party web "cookies" for behavioral advertising. The regulation of these cookies and other current online advertising practices could adversely affect our business.

We may suffer liability as a result of information retrieved from or transmitted over the Internet and claims related to our service offerings.

We may be, and in certain cases have been, sued for defamation, civil rights infringement, negligence, patent, copyright or trademark infringement, invasion of privacy, personal injury, product liability, breach of contract, unfair competition, discrimination, antitrust or other legal claims relating to information that is published or made available on our websites or service offerings we make available (including provision of an application programming interface platform for third parties to access our website, mobile device services and geolocation applications). This risk is enhanced in certain jurisdictions outside the United States, where our liability for such third party actions may be less clear and we may be less protected. In addition, we could incur significant costs in investigating and defending such claims, even if we ultimately are not found liable. If any of these events occurs, our net income could be materially and adversely affected.

We are subject to risks associated with information disseminated through our websites and applications, including consumer data, content that is produced by our editorial staff and errors or omissions related to our product offerings. Such information, whether accurate or inaccurate, may result in our being sued by our merchants, subscribers or third parties and as a result our revenue and goodwill could be materially and adversely affected.

We may not be able to adequately protect our intellectual property rights or may be accused of infringing intellectual property rights of third parties.

We regard our trademarks, service marks, copyrights, patents, trade dress, trade secrets, proprietary technology, merchant lists, subscriber lists, sales methodology and similar intellectual property as critical to our success, and we rely on trademark, copyright and patent law, trade secret protection and confidentiality and/or license agreements with our employees and others to protect our proprietary rights. Effective intellectual property protection may not be available in every country in which our deals are made available. We also may not be able to acquire or maintain appropriate domain names or trademarks in all countries in

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which we do business. Furthermore, regulations governing domain names may not protect our trademarks and similar proprietary rights. We may be unable to prevent third parties from acquiring and using domain names that are similar to, infringe upon or diminish the value of our trademarks and other proprietary rights. We may be unable to prevent third parties from using and registering our trademarks, or trademarks that are similar to, or diminish the value of, our trademarks in some countries.

We may not be able to discover or determine the extent of any unauthorized use of our proprietary rights. Third parties that license our intellectual property rights also may take actions that diminish the value of our proprietary rights or reputation. The protection of our intellectual property may require the expenditure of significant financial and managerial resources. Moreover, the steps we take to protect our intellectual property may not adequately protect our rights or prevent third parties from infringing or misappropriating our proprietary rights. We are currently subject to multiple lawsuits and disputes related to our intellectual property and service offerings. We may in the future be subject to additional litigation and disputes. The costs of engaging in such litigation and disputes are considerable, and there can be no assurances that favorable outcomes will be obtained.

We are currently subject to third party claims that we infringe their proprietary rights or trademarks and expect to be subject to additional claims in the future. Such claims, whether or not meritorious, may result in the expenditure of significant financial and managerial resources, injunctions against us or the payment of damages by us. We may need to obtain licenses from third parties who allege that we have infringed their rights, but such licenses may not be available on terms acceptable to us or at all. These risks have been amplified by the increase in third parties whose sole or primary business is to assert such claims.

Our business depends on a strong brand, and if we are not able to maintain and enhance our brand, or if we receive unfavorable media coverage, our ability to expand our base of customers and merchants could be impaired and our business and operating results could be harmed.

We believe that the brand identity that we have developed has significantly contributed to the success of our business. We also believe that maintaining and enhancing the "Groupon" brand is critical to expanding our base of customers and merchants. Maintaining and enhancing our brand may require us to make substantial investments and these investments may not be successful. If we fail to promote and maintain the "Groupon" brand, or if we incur excessive expenses in this effort, our business, operating results and financial condition will be materially and adversely affected. We anticipate that, as our market becomes increasingly competitive, maintaining and enhancing our brand may become increasingly difficult and expensive. Maintaining and enhancing our brand will depend largely on our ability to be a group buying leader and to continue to provide reliable, trustworthy and high quality deals, which we may not do successfully.

We receive a high degree of media coverage around the world. Unfavorable publicity or consumer perception of our websites, applications, practices or service offerings, or the offerings of our merchants, could adversely affect our reputation, resulting in difficulties in recruiting, decreased revenue and a negative impact on the number of merchants we feature and the size of our customer base, the loyalty of our customers and the number and variety of deals we offer each day. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Acquisitions, dispositions, joint ventures and strategic investments could result in operating difficulties, dilution and other consequences.

We routinely evaluate and consider a wide array of potential strategic transactions, including acquisitions and dispositions of businesses, joint ventures, technologies, services, products and other assets and minority investments, some of which we consummate. These activities can result in operating difficulties, dilution, management distraction and other potentially adverse consequences. We have in the past acquired a number of companies, including Ticket Monster, which we acquired on January 2, 2014 for total consideration of $259.4 million, and Ideel, which we acquired on January 13, 2014 for total consideration of $42.7 million. We have hired advisers to help us explore a range of financing and strategic alternatives for Ticket Monster and certain other Asian markets. As part of that process, multiple parties have expressed preliminary interest in Ticket Monster. However, we cannot provide any assurance as to the pricing, timetable or structure of any transaction, or the likelihood of any transaction being completed. Furthermore, if we consummate such a strategic transaction, we may not successfully realize the anticipated benefits of the transaction.

Acquisitions involve significant risks and uncertainties, including uncertainties as to the future financial performance of the acquired business, integration risks such as difficulties integrating acquired personnel into our business, the potential loss of key employees, customers or suppliers, difficulties in integrating different computer and accounting systems and exposure to unknown or unforeseen liabilities of acquired companies. In addition, the integration of an acquisition could divert management's time and the Company's resources. If we pay for an acquisition or a minority investment in cash, it would reduce our cash available for operations or cause us to incur debt, and if we pay with our stock it could be dilutive to our stockholders. Additionally, we do

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not have the ability to exert control over our minority investments, and therefore we are dependent on others in order to realize their potential benefits. Dispositions and attempted dispositions also involve significant risks and uncertainties, such as the risk of destabilizing the applicable operations or the loss of key personnel, as well as uncertainties with respect to the separation of disposed operations, the terms and timing of any dispositions and the ability to obtain necessary governmental or regulatory approvals. Further, we may be unable to successfully complete potential strategic transactions on a timely basis or at all, or we may not realize the anticipated benefits of any or all of our strategic transactions, or we may not realize them in the time frame expected.

Our business may be subject to seasonal sales fluctuations which could result in volatility or have an adverse effect on the market price of our Class A common stock.

Our business has been and may continue to be subject to sales seasonality. This seasonality may cause our working capital cash flow requirements to vary from quarter to quarter depending on the variability in the volume and timing of sales. These factors, among other things, make forecasting more difficult and may adversely affect our ability to manage working capital and to predict financial results accurately, which could adversely affect the market price of our Class A common stock.

Failure to deal effectively with fraudulent transactions and customer disputes would increase our loss rate and harm our business.

Groupons are issued in the form of redeemable coupons with unique identifiers. It is possible that consumers or other third parties will seek to create counterfeit Groupons in order to fraudulently purchase discounted goods and services from merchants. While we use advanced anti-fraud technologies, it is possible that criminals will attempt to circumvent our anti-fraud systems using increasingly sophisticated methods. In addition, our service could be subject to employee fraud or other internal security breaches, and we may be required to reimburse customers and/or merchants for any funds stolen or revenue lost as a result of such breaches. Merchants could also request reimbursement, or stop using Groupon, if they are affected by buyer fraud or other types of fraud.

We may incur significant losses from fraud and counterfeit Groupons. We may incur losses from claims that the customer did not authorize the purchase, from merchant fraud, from erroneous transmissions, and from customers who have closed bank accounts or have insufficient funds in them to satisfy payments. In addition to the direct costs of such losses, if they are related to credit card transactions and become excessive, they could potentially result in our losing the right to accept credit cards for payment. If we were unable to accept credit cards for payment, we would suffer substantial reductions in revenue, which would cause our business to suffer. While we have taken measures to detect and reduce the risk of fraud, these measures need to be continually improved and may not be effective against new and continually evolving forms of fraud or in connection with new product offerings. If these measures do not succeed, our business will suffer.

We are subject to payments-related risks.

We accept payments using a variety of methods, including credit card, debit card and gift certificates. As we offer new payment options to customers, we may be subject to additional regulations, compliance requirements and fraud. For certain payment methods, including credit and debit cards, we pay interchange and other fees, which may increase over time and raise our operating costs and lower profitability. We rely on third parties to provide payment processing services, including the processing of credit cards and debit cards, and it could disrupt our business if these companies become unwilling or unable to provide these services to us. We are also subject to payment card association operating rules, certification requirements and rules governing electronic funds transfers, which could change or be reinterpreted to make it difficult or impossible for us to comply. If we fail to comply with these rules or requirements, we may be subject to fines and higher transaction fees and lose our ability to accept credit and debit card payments from customers or facilitate other types of online payments, and our business and operating results could be adversely affected.

We are also subject to or voluntarily comply with a number of other laws and regulations relating to money laundering, international money transfers, privacy and information security and electronic fund transfers. If we were found to be in violation of applicable laws or regulations, we could be subject to civil and criminal penalties or forced to cease our payment processing service business. In addition, events affecting our third party payment processors, including cyber-attacks, Internet or other infrastructure or communications impairment or other events that could interrupt the normal operation of our payment processors, could have a material adverse effect on our business.

When we process credit card payments for merchants, we may be subject to chargeback liability if our merchants refuse or cannot reimburse chargebacks resolved in favor of their customers.

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We offer a credit card payment processing service to merchants.  If we process a payment that is successfully disputed by the customer at a later date, the transaction is normally "charged back" to the merchant and the purchase price is credited or otherwise refunded to the cardholder. If we or our clearing bank is unable to collect such amounts from the merchant's account, or if the merchant refuses or is unable, due to closure, bankruptcy or other reasons, to reimburse us for the chargeback, we bear the loss for the amount of the refund paid to the cardholder.  Any chargebacks not paid by merchants may adversely affect our financial condition and results of operations. In addition, if our clearing bank terminates our relationship and we are unable to secure a relationship with another clearing bank, we would be unable to process payments.

Federal laws and regulations, such as the Bank Secrecy Act and the USA PATRIOT Act and similar foreign laws, could be expanded to include Groupons.

Various federal laws, such as the Bank Secrecy Act and the USA PATRIOT Act and foreign laws and regulations, such as the European Directive on the prevention of the use of the financial system for the purpose of money laundering and terrorist financing, impose certain anti-money laundering requirements on companies that are financial institutions or that provide financial products and services. For these purposes, financial institutions are broadly defined to include money services businesses such as money transmitters, check cashers and sellers or issuers of stored value cards. Examples of anti-money laundering requirements imposed on financial institutions include subscriber identification and verification programs, record retention policies and procedures and transaction reporting. We do not believe that we are a financial institution subject to these laws and regulations based, in part, upon the characteristics of Groupons and our role with respect to the distribution of Groupons to subscribers. However, the Financial Crimes Enforcement Network, a division of the U.S. Treasury Department tasked with implementing the requirements of the Bank Secrecy Act, recently proposed amendments to the scope and requirements for parties involved in stored value or prepaid access cards, including a proposed expansion of financial institutions to include sellers or issuers of prepaid access cards. In the event that this proposal is adopted as proposed, it is possible that a Groupon could be considered a financial product and that we could be a financial institution. In the event that we become subject to the requirements of the Bank Secrecy Act or any other anti-money laundering law or regulation imposing obligations on us as a money services business, our regulatory compliance costs to meet these obligations would likely increase which could reduce our net income.

State and foreign laws regulating money transmission could be expanded to include Groupons.

Many states and certain foreign jurisdictions impose license and registration obligations on those companies engaged in the business of money transmission, with varying definitions of what constitutes money transmission. We do not currently believe we are a money transmitter given our role and the product terms of Groupons. However, a successful challenge to our position or expansion of state or foreign laws could subject us to increased compliance costs and delay our ability to offer Groupons in certain jurisdictions pending receipt of any necessary licenses or registrations.

Our ability to raise capital in the future may be limited, and our failure to raise capital when needed could prevent us from growing.

We may in the future be required to raise capital through public or private financing or other arrangements. Such financing may not be available on acceptable terms, or at all, and our failure to raise capital when needed could harm our business.  In addition, we are party to a credit agreement with JPMorgan Chase Bank, N.A., as Administrative Agent, dated as of August 1, 2014 (the "Credit Agreement"), but our ability to borrow funds under the Credit Agreement is subject to continued compliance with the financial covenants and other terms set forth therein. Furthermore, additional equity financing may dilute the interests of our common stockholders, and debt financing, if available, may involve restrictive covenants that could restrict our business activities or our ability to execute our strategic objectives and could reduce our profitability. If we cannot raise or borrow funds on acceptable terms, we may not be able to grow our business or respond to competitive pressures.

Risks Related to Ownership of Our Class A Common Stock

The trading price of our Class A common stock is highly volatile.

Our Class A common stock began trading on the NASDAQ Global Select Market on November 4, 2011 and since that date has fluctuated from a high of $31.14 per share to a low of $2.60 per share. We expect that the trading price of our stock will continue to be volatile due to variations in our operating results and also may change in response to other factors, including factors specific to technology and Internet commerce companies, many of which are beyond our control. Among the factors that could affect our stock price are:

• our financial results;

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• any financial projections that we provide to the public, any changes in these projections or our failure for any reason to meet these projections or projections made by research analysts;

• the amount of shares of our Class A common stock that are available for sale;

• the relative success of competitive products or services;

• the public's response to press releases or other public announcements by us or others, including our filings with the SEC and announcements relating to litigation;

• speculation about our business in the press or the investment community;

• future sales of our Class A common stock by our significant stockholders, officers and directors;

• announcements about our share repurchase program and purchases under the program;

• changes in our capital structure, such as future issuances of debt or equity securities;

• our entry into new markets or exit from existing markets;

• regulatory developments in the United States or foreign countries;

• strategic acquisitions, joint ventures or restructurings announced or consummated by us or our competitors;

• strategic dispositions of businesses or other assets announced or consummated by us; and

• changes in accounting principles.

We expect the stock price volatility to continue for the foreseeable future as a result of these and other factors.

Purchases of shares of our Class A common stock pursuant to our stock repurchase program may affect the value of our Class A common stock.

Pursuant to our publicly announced share repurchase program, we are authorized to repurchase up to $300.0 million of our outstanding Class A common stock through August 2015 and have approximately $101.5 million remaining under this authorization as of December 31, 2014. The timing and amount of any share repurchases will be determined based on market conditions, share price and other factors. This activity could increase (or reduce the size of any decrease in) the market price of our Class A common stock at that time.

If securities or industry analysts do not publish research or reports about our business, or publish inaccurate or unfavorable research reports about our business, our share price and trading volume could decline.

The trading market for our common stock depends, in part, on the research and reports that securities or industry analysts publish about us or our business. We do not have any control over these analysts. If one or more of the analysts who cover us should downgrade our shares or change their opinion of our shares, industry sector or products, our share price would likely decline. If one or more of these analysts ceases coverage of our company or fails to regularly publish reports on us, we could lose visibility in the financial markets, which could cause our share price or trading volume to decline.

The concentration of our capital stock ownership with our founders, executive officers, employees and directors and their affiliates will limit stockholders' ability to influence corporate matters.

Our Class B common stock has 150 votes per share and our Class A common stock has one vote per share. As of February 9, 2015, our founders, Eric Lefkofsky, Bradley Keywell and Andrew Mason control 100% of our outstanding Class B common stock and, based on information available to us, approximately 23.0% of our outstanding Class A common stock, representing approximately 49.8% of the voting power of our outstanding capital stock. Messrs. Lefkofsky, Keywell and Mason will therefore have significant influence over management and over all matters requiring stockholder approval, including the election of directors and significant corporate transactions, such as a merger or other sale of our company or its assets, for the foreseeable future. This concentrated control will limit stockholders' ability to influence corporate matters and, as a result, we may take actions that our stockholders do not view as beneficial. As a result, the market price of our Class A common stock could be adversely affected.

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We do not intend to pay dividends for the foreseeable future.

We intend to retain all of our earnings for the foreseeable future to finance the operation and expansion of our business and do not anticipate paying cash dividends. As a result, stockholders can expect to receive a return on their investment in our Class A common stock only if the market price of the stock increases.

Provisions in our charter documents and under Delaware law could discourage a takeover that stockholders may consider favorable.

Provisions in our certificate of incorporation and bylaws, as amended and restated upon the closing of this offering, may have the effect of delaying or preventing a change of control or changes in our management. These provisions include the following:

• Our certificate of incorporation provides for a dual class common stock structure. As a result of this structure, our founders will have significant influence over all matters requiring stockholder approval, including the election of directors and significant corporate transactions, such as a merger or other sale of our company or its assets. This concentrated control could discourage others from initiating any potential merger, takeover or other change of control transaction that other stockholders may view as beneficial.

• Our board of directors has the right to elect directors to fill a vacancy created by the expansion of the board of directors or the resignation, death or removal of a director, which prevents stockholders from being able to fill vacancies on our board of directors.

• Special meetings of our stockholders may be called only by our Executive Chairman of the Board, our Chief Executive Officer, our board of directors or holders of not less than the majority of our issued and outstanding capital stock. This limits the ability of minority stockholders to take certain actions without an annual meeting of stockholders.

• Our stockholders may not act by written consent unless the action to be effected and the taking of such action by written consent is approved in advance by our board of directors. As a result, a holder, or holders, controlling a majority of our capital stock would generally not be able to take certain actions without holding a stockholders' meeting.

• Our certificate of incorporation prohibits cumulative voting in the election of directors. This limits the ability of minority stockholders to elect director candidates.

• Stockholders must provide timely notice to nominate individuals for election to the board of directors or to propose matters that can be acted upon at an annual meeting of stockholders. These provisions may discourage or deter a potential acquiror from conducting a solicitation of proxies to elect the acquiror's own slate of directors or otherwise attempting to obtain control of our company.

• Our board of directors may issue, without stockholder approval, shares of undesignated preferred stock. The ability to authorize undesignated preferred stock makes it possible for our board of directors to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to acquire us.

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ITEM 1B: UNRESOLVED STAFF COMMENTS

None.

ITEM 2: PROPERTIES

As of December 31, 2014, the Company had leases for approximately 1.7 million square feet of space. Our corporate headquarters and principal executive offices are located in Chicago, Illinois. Other properties are located throughout the world and largely represent local operating facilities. We believe that our properties are in good condition and meet the needs of our business, and that suitable additional or alternative space will be available as needed to accommodate our business operations and future growth.

Description of Use	Segment	Square Feet	Various lease expirations through
Corporate offices	North America	504,000	December 2023
Corporate offices	EMEA	389,000	June 2024
Corporate offices	Rest of World	414,000	June 2018
Fulfillment and data centers	North America	331,000	December 2018
Fulfillment and data centers	EMEA	16,000	March 2019
Fulfillment and data centers	Rest of World	51,000	August 2016

ITEM 3: LEGAL PROCEEDINGS

For a description of our material pending legal proceedings, please see Note 8 "Commitments and Contingencies" to the consolidated financial statements included in Item 8 of this Annual Report on Form 10-K.

ITEM 4: MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM 5: MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our Class A common stock has been listed on the NASDAQ Global Select Market under the symbol "GRPN" since November 4, 2011. The following table sets forth the high and low intraday sales price for our Class A common stock as reported by the NASDAQ Global Select Market for each of the years listed.

2013	High		Low
First Quarter	$	6.36	$	4.24
Second Quarter	$	8.69	$	5.37
Third Quarter	$	12.76	$	8.26
Fourth Quarter	$	12.31	$	8.40
2014	High		Low
First Quarter	$	12.42	$	7.61
Second Quarter	$	8.24	$	5.18
Third Quarter	$	7.28	$	5.68
Fourth Quarter	$	8.43	$	5.72

Holders

As of February 9, 2015, there were 182 holders of record of our Class A common stock and three holders of record of our Class B common stock. Each share of our Class A common stock is entitled to one vote per share. Each share of our Class B common stock is entitled to 150 votes per share and is convertible at any time into one share of Class A common stock.

Dividend Policy

We currently do not anticipate paying dividends on our Class A common stock or Class B common stock in the foreseeable future. Any future determination to declare cash dividends will be made at the discretion of our board of directors, subject to applicable laws and will depend on our financial condition, results of operations, capital requirements, general business conditions and other factors that our board of directors may deem relevant.

Equity Compensation Plan Information

Information about the securities authorized for issuance under our compensation plans is incorporated by reference from the Company's Proxy Statement for the 2015 Annual Meeting of Stockholders.

Recent Sales of Unregistered Securities

On November 13, 2014, we acquired all of the outstanding capital stock of Swarm Solutions, Inc. ("Swarm"). In connection with the closing of this transaction, we issued an aggregate of 1,429,897 shares of Class A common stock as consideration to the stockholders of Swarm.

These issuances of shares of Class A common stock were exempt from registration under the Securities Act of 1933, as amended (the "Securities Act") in reliance upon Section 4(a)(2) or Regulation D of the Securities Act as transactions by an issuer not involving any public offering. The stockholders who received shares of our Class A common stock made representations to us as to their accredited investor status and as to their investment intent and financial sophistication. Appropriate legends were placed upon any book-entry entitlements issued with respect to such shares of Class A common stock.

Issuer Purchases of Equity Securities

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In August 2013, our Board of Directors authorized a share repurchase program. Under the program, we are authorized to repurchase up to $300.0 million of our outstanding Class A common stock through August 2015.  The timing and amount of any share repurchases will be determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time.  We will fund the repurchases through cash on hand and future cash flow.  Repurchases will be made in compliance with SEC rules and other legal requirements and may be made in part under a Rule 10b5-1 plan, which permits stock repurchases when the Company might otherwise be precluded from doing so.

During the three months ended December 31, 2014, we purchased 1,152,100 shares of Class A common stock for an aggregate purchase price of $8.1 million (including fees and commissions) under the share repurchase program. A summary of our Class A common stock repurchases during the three months ended December 31, 2014 under the repurchase program is set forth in the following table:

Date	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Program	Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under Program
October 1-31, 2014	468,100	$	6.24	468,100	$	107,000,000
November 1-30, 2014	319,400	$	7.60	319,400	$	105,000,000
December 1-31, 2014	364,600	$	7.58	364,600	$	102,000,000
Total	1,152,100	$	7.04	1,152,100	$	102,000,000

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Stock Performance Graph

This performance graph shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the Exchange Act), or incorporated by reference into any filing of Groupon, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Our stock price performance shown in the graph below is not indicative of our future stock price performance.

The graph set forth below compares the cumulative total return on our class A common stock with the cumulative total return of the Nasdaq Composite Index and the Nasdaq 100 Index, resulting from an initial investment of $100 in each and assuming the reinvestment of any dividends, based on closing prices. Measurement points are our initial public offering date of November 4, 2011 and the last trading day of each year end period for 2011, 2012, 2013 and 2014.

Source: Yahoo! Finance

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ITEM 6: SELECTED FINANCIAL DATA

The following selected consolidated financial data should be read in conjunction with our consolidated financial statements and the accompanying notes thereto in Item 8 of this Annual Report on Form 10-K, and the information contained in Item 7 of this Annual Report on Form 10-K "Management's Discussion and Analysis of Financial Condition and Results of Operations." Historical results are not necessarily indicative of future results.

	Year Ended December 31,
	2014			2013			2012			2011			2010
	(in thousands, except share and per share amounts)
Consolidated Statements of Operations Data:
Revenue:
Third party and other	$	1,627,539		$	1,654,654		$	1,879,729		$	1,589,604		$	312,941
Direct	1,564,149			919,001			454,743			20,826			—
Total revenue	3,191,688			2,573,655			2,334,472			1,610,430			312,941
Cost of revenue:
Third party and other	241,885			232,062			297,739			243,789			42,896
Direct	1,400,617			840,060			421,201			15,090			—
Total cost of revenue	1,642,502			1,072,122			718,940			258,879			42,896
Gross profit	1,549,186			1,501,533			1,615,532			1,351,551			270,045
Operating expenses:
Marketing	269,043			214,824			336,854			768,472			290,569
Selling, general and administrative	1,293,716			1,210,966			1,179,080			821,002			196,637
Acquisition-related expense (benefit), net	1,269			(11		)	897			(4,537		)	203,183
Total operating expenses	1,564,028			1,425,779			1,516,831			1,584,937			690,389
(Loss) income from operations	(14,842		)	75,754			98,701			(233,386		)	(420,344		)
Other (expense) income, net	(33,353		)	(94,663		)	(3,759		)	(20,679		)	284
(Loss) income before provision (benefit) for income taxes	(48,195		)	(18,909		)	94,942			(254,065		)	(420,060		)
Provision (benefit) for income taxes	15,724			70,037			145,973			43,697			(6,674		)
Net loss	(63,919		)	(88,946		)	(51,031		)	(297,762		)	(413,386		)
Net (income) loss attributable to noncontrolling interests	(9,171		)	(6,447		)	(3,742		)	18,335			23,746
Net loss attributable to Groupon, Inc.	(73,090		)	(95,393		)	(54,773		)	(279,427		)	(389,640		)
Dividends on preferred stock	—			—			—			—			(1,362		)
Redemption of preferred stock in excess of carrying value	—			—			—			(34,327		)	(52,893		)
Adjustment of redeemable noncontrolling interests to redemption value	—			—			(12,604		)	(59,740		)	(12,425		)
Net loss attributable to common stockholders	$	(73,090	)	$	(95,393	)	$	(67,377	)	$	(373,494	)	$	(456,320	)
Net loss per share
Basic	$	(0.11	)	$	(0.14	)	$	(0.10	)	$	(1.03	)	$	(1.33	)
Diluted	$	(0.11	)	$	(0.14	)	$	(0.10	)	$	(1.03	)	$	(1.33	)
Weighted average number of shares outstanding
Basic	674,832,393			663,910,194			650,214,119			362,261,324			342,698,772
Diluted	674,832,393			663,910,194			650,214,119			362,261,324			342,698,772

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	As of December 31,
	2014		2013		2012		2011		2010
	(in thousands)
Consolidated Balance Sheet Data:
Cash and cash equivalents	$	1,071,913	$	1,240,472	$	1,209,289	$	1,122,935	$	118,833
Working capital (deficit)	75,733		374,720		319,345		328,165		(196,564		)
Total assets	2,227,597		2,042,010		2,031,474		1,774,476		381,570
Total long-term liabilities	137,057		142,550		120,932		78,194		1,621
Total Groupon, Inc. Stockholders' Equity	762,826		713,651		744,040		702,541		8,077

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ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read together with our consolidated financial statements and related notes included under Item 8 of this Annual Report on Form 10-K. This discussion contains forward-looking statements about our business and operations. Our actual results may differ materially from those we currently anticipate as a result of many factors, including those we describe under "Risk Factors" and elsewhere in this Annual Report.

Overview

Groupon operates online local commerce marketplaces throughout the world that connect merchants to consumers by offering goods and services at a discount. Traditionally, local merchants have tried to reach consumers and generate sales through a variety of methods, including online advertising, the yellow pages, direct mail, newspaper, radio, television, and promotions. By bringing the brick and mortar world of local commerce onto the Internet, Groupon is helping local merchants to attract customers and sell goods and services. We provide consumers with savings and help them discover what to do, eat, see and buy and where to travel.

Current and potential customers are able to access our deal offerings directly through our websites, mobile platforms and emails and may also access our offerings indirectly using search engines. We offer deals in three primary categories: Local Deals ("Local"), Groupon Goods ("Goods") and Groupon Getaways ("Travel"). In our Goods category, through which we offer deals on merchandise, we often act as the merchant of record, particularly for deals in North America and for deals in EMEA, which is comprised of Europe, Middle East and Africa, beginning in September 2013. Our revenue from deals where we act as the third party marketing agent is the purchase price paid by the customer for a Groupon voucher ("Groupon") less an agreed upon portion of the purchase price paid to the featured merchants, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Our direct revenue from deals where we act as the merchant of record is the purchase price paid by the customer, excluding applicable taxes and net of estimated refunds. We generated revenue of $3,191.7 million during the year endedDecember 31, 2014, as compared to $2,573.7 million during the year endedDecember 31, 2013.

Our operations are organized into three segments: North America, EMEA and the remainder of our international operations ("Rest of World"). See Note 16 "Segment Information" for further information. For the year ended December 31, 2014, we derived 57.2% of our revenue from our North America segment, 30.1% of our revenue from our EMEA segment and 12.7% of our revenue from our Rest of World segment.

On January 2, 2014, we 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 are reported within our Rest of World segment for the year endedDecember 31, 2014. On January 13, 2014, we acquired all of the outstanding equity interests of Ideeli, Inc. (d/b/a "Ideel"), a fashion flash site based in the United States, for total consideration of $42.7 million. Ideel is focused on women's fashion apparel, accessories and home decor, and the operations of Ideel are reported within our North America segment for the year endedDecember 31, 2014. 

We have hired advisers to help us explore a range of financing and strategic alternatives for Ticket Monster and certain other Asian markets. As part of that process, multiple parties have expressed preliminary interest in Ticket Monster. However, we cannot provide any assurance as to the pricing, timetable or structure of any transaction, or the likelihood of any transaction being completed.

How We Measure Our Business

We measure our business with several financial and operating metrics. We use these metrics to assess the progress of our business, make decisions on where to allocate capital, time and technology investments and assess the long-term performance of our marketplaces. Certain of the financial metrics are reported in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") and certain of these metrics are considered non-GAAP financial measures. As our business evolves, we may make changes to our key financial and operating metrics used to measure our business in future periods. For further information and a reconciliation to the most applicable financial measure under U.S. GAAP, refer to our discussion under Non-GAAP Financial Measures in the "Results of Operations" section.

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Financial Metrics

• Gross billings. This metric represents the total dollar value of customer purchases of goods and services, excluding applicable taxes and net of estimated refunds. For third party revenue deals, gross billings differs from third party revenue reported in our consolidated statements of operations, which is presented net of the merchant's share of the transaction price. For direct revenue deals, gross billings are equivalent to direct revenue reported in our consolidated statements of operations. We consider this metric to be an important indicator of our growth and business performance as it is a proxy for the dollar volume of transactions generated through our marketplaces. Tracking gross billings on third party revenue deals also allows us to track changes in the percentage of gross billings that we are able to retain after payments to our merchants.

• Revenue. Third party revenue is derived from deals where we act as the marketing agent and is the purchase price paid by the customer less an agreed upon portion of the purchase price paid to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Direct revenue, when the Company is selling the product as the merchant of record, is the purchase price paid by the customer, excluding applicable taxes and net of estimated refunds.

• Gross profit. Gross profit reflects the net margin earned after deducting our cost of revenue from our revenue. Due to the lack of comparability between third party revenue, which is presented net of the merchant's share of the transaction price, and direct revenue, which is reported on a gross basis, we believe that gross profit is an important measure for evaluating our performance.

• Adjusted EBITDA. Adjusted EBITDA is a non-GAAP financial measure that comprises net income (loss) excluding income taxes, interest and other non-operating items, depreciation and amortization, stock-based compensation and acquisition-related expense (benefit), net. We exclude stock-based compensation expense and depreciation and amortization because they are primarily non-cash in nature, and we believe that non-GAAP financial measures excluding these items provide meaningful supplemental information about our operating performance and liquidity. Acquisition-related expense (benefit), net is comprised of the change in the fair value of contingent consideration arrangements and external transaction costs related to business combinations, primarily consisting of legal and advisory fees. Our definition of Adjusted EBITDA may differ from similar measures used by other companies, even when similar terms are used to identify such measures. We believe that Adjusted EBITDA is a meaningful measure for evaluating our operating performance. For further information and a reconciliation to the most applicable financial measure under U.S. GAAP, refer to our discussion under Non-GAAP Financial Measures in the "Results of Operations" section.

• Free cash flow. Free cash flow is a non-GAAP financial measure that comprises net cash (used in) provided by operating activities less purchases of property and equipment and capitalized software. We use free cash flow, and ratios based on it, to conduct and evaluate our business because, although it is similar to cash flow from operations, we believe that it typically represents a more useful measure of cash flows because purchases of fixed assets, software developed for internal use and website development costs are necessary components of our ongoing operations. Free cash flow is not intended to represent the total increase or decrease in our cash balance for the applicable period. For further information and a reconciliation to the most applicable financial measure under U.S. GAAP, refer to our discussion under Non-GAAP Financial Measures in the "Results of Operations" section.

The following table presents the above Financial Metrics for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
Gross billings	$	7,580,960	$	5,757,330	$	5,380,184
Revenue	3,191,688		2,573,655		2,334,472
Gross profit	1,549,186		1,501,533		1,615,532
Adjusted EBITDA	253,367		286,654		259,516
Free cash flow	200,532		154,927		170,998

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Operating Metrics

• Active customers. We define active customers as unique user accounts that have purchased a voucher or product from us during the trailing twelve months. We consider this metric to be an important indicator of our business performance as it helps us to understand how the number of customers actively purchasing our deals is trending.

• Gross billings per average active customer. This metric represents the trailing twelve months gross billings generated per average active customer. This metric is calculated as the total gross billings generated in the trailing twelve months, divided by the average number of active customers in such time period. Although we believe total gross billings, not trailing twelve months gross billings per average active customer, is a better indication of the overall growth of our marketplaces over time, trailing twelve months gross billings per average active customer provides an opportunity to evaluate whether our growth is primarily driven by growth in total customers or in spend per customer in any given period.

• Units. This metric represents the number of vouchers and products purchased from us by our customers, before refunds and cancellations. We consider unit growth to be an important indicator of the total volume of business conducted through our marketplaces.

Our Active customers and Gross billings per average active customer for the trailing twelve months ("TTM") ended December 31, 2014, 2013 and 2012 were as follows:

	Trailing twelve months ended December 31,
	2014		2013(1)		2012(2)
TTM Active customers (in thousands)	53,852		43,673		40,564
TTM Gross billings per average active customer	$	155.47	$	136.69	$	144.84

(1) TTM active customers for the period ended December 31, 2013 has been reduced from 44.9 million active customers previously reported to 43.7 million to correct that operational information. This correction increased TTM gross billings per average active customer for the period ended December 31, 2013 from $134.01 previously reported to $136.69.

(2) TTM active customers for the period ended December 31, 2012 has been reduced from 41.0 million active customers previously reported to 40.6 million to correct that operational information. This correction increased TTM gross billings per average active customer for the period ended December 31, 2012 from $143.88 previously reported to $144.84.

The increase in active customers for the trailing twelve months ended December 31, 2014, as compared to the prior year periods, was primarily attributable to the acquisitions of Ticket Monster and Ideel.

Our Units for the years ended December 31, 2014, 2013 and 2012 were as follows:

	Year Ended December 31,
	2014	2013	2012
Units (in thousands)	356,110	193,426	176,079

The increase in units for the year ended December 31, 2014, as compared to the prior year periods, was primarily attributable to the acquisitions of Ticket Monster and Ideel.

Factors Affecting Our Performance

Deal sourcing and quality. We consider our merchant relationships to be a vital part of our business model and have made significant investments in order to expand the variety of tools that we can provide to our merchants. We depend on our ability to attract and retain merchants that are prepared to offer products or services on compelling terms, particularly as we attempt to expand our product and service offerings in order to create more complete online marketplaces for local commerce. In North America and many of our foreign markets, we offer deals in which the merchant has a continuous presence on our websites and mobile applications by offering vouchers on an ongoing basis for an extended period of time. Currently, a substantial majority of our merchants in North America elect to offer deals in this manner, and we expect that trend to continue. These marketplaces, which we refer to as "pull" marketplaces, enable customers to search for specific types of deals on our websites and mobile applications. However, merchants have the ability to withdraw their extended deal offerings, and we generally do not have

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noncancelable long-term arrangements to guarantee availability of deals. In order to attract merchants that may not have run deals on our platform or would have run deals on a competing platform, we have been willing to accept lower deal margins across all three of our segments and we expect that trend to continue. This has contributed to lower deal margins during the year endedDecember 31, 2014, as compared to the prior year periods. If new merchants do not find our marketing and promotional services effective, or if our existing merchants do not believe that utilizing our services provides them with a long-term increase in customers, revenue or profit, they may stop making offers through our marketplaces or they may only continue offering deals if we accept lower margins.

International operations. Our international operations represent a substantial portion of our business and have increased as a percentage of our total revenue in the current year. For the years endedDecember 31, 2014, 2013 and 2012, 30.1%, 28.9% and 34.5% of our revenue was generated from our EMEA segment, respectively, and 12.7%, 12.0% and 15.6% of our revenue was generated from our Rest of World segment, respectively. Operating a global business requires management attention and resources and requires us to localize our services to conform to a wide variety of local cultures, business practices, laws and regulations. The different commercial and regulatory environments in other countries may make it more difficult for us to successfully operate our business. In addition, many of the automation tools and technology enhancements that we have implemented in our North America segment are close to being fully implemented in most EMEA countries but have not been substantially rolled out to the countries in our Rest of World segment. Revenue from our EMEA segment increased for the year endedDecember 31, 2014, as compared to the prior year, and the percentage of total revenue generated by our EMEA segment increased on a year-over-year basis. Revenue from our Rest of World segment increased for the year endedDecember 31, 2014, as compared to the prior year. On a year-over-year basis, the percentage of total revenue generated by our Rest of World segment increased for the year endedDecember 31, 2014. Revenue from our North America segment increased for the year endedDecember 31, 2014, as compared to the prior year, and the percentage of total revenue generated by our North America segment decreased on a year-over-year basis. The decrease in North America revenue as a percentage of total revenue was primarily due to the increase in direct revenue transactions from our Groupon Goods business in EMEA, as direct revenue is presented on a gross basis in our consolidated statements of operations.

Marketing activities. We must continue to acquire and retain customers in order to increase revenue and attempt to achieve profitability. If consumers do not perceive our Groupon offerings to be attractive, or if we fail to introduce new or more relevant deals, we may not be able to acquire or retain customers. In addition, as we build-out more complete marketplaces, our success will depend on our ability to increase consumer awareness of deals available through those marketplaces. As discussed under "Components of Results of Operations," we consider order discounts, free shipping on qualifying merchandise sales and reducing margins on our deals to be marketing-related activities, even though these activities are not presented as marketing expenses in our consolidated statements of operations. We have, and expect to continue to, reduce our deal margins when we believe that by doing so we can offer our customers a product or service from a merchant who might not have otherwise been willing to conduct business through our marketplaces. We use this as a marketing tool because we believe that in some instances this is an effective method of retaining or activating a customer, as compared to other methods of retention or activation, such as traditional advertising or discounts.

Investment in growth. We have aggressively invested, and intend to continue to invest, in our products and infrastructure to support our growth. We also continue to invest in business acquisitions to grow our merchant and customer base, expand our presence in international markets, expand and advance our product offerings and enhance our technology capabilities. We anticipate that we will make substantial investments in the foreseeable future as we continue to increase the number and variety of deals we offer each day, broaden our customer base, expand our marketing channels, expand our operations, hire additional employees and develop our technology. Additionally, we believe that our efforts to automate our internal processes through investments in technology should allow us to improve our cost structure over time, as we are able to more efficiently run our business and minimize manual processes.

We recently launched a tablet-based platform for merchants that we believe will streamline the voucher redemption process. This tablet-based platform can also be used in connection with our credit card payment processing service. In addition, we have begun to add additional content about local merchants to our websites, including merchants who have not offered deals through our marketplace. This new content, which we refer to as "Pages," is intended to provide customers with the ability to discover more local businesses and deal offerings through our websites. While we believe that both of these initiatives will contribute to the future success of our business, we do not expect that they will generate a material amount of revenue in the near term. 

Competitive pressure. We face competition from a variety of competitors. Some of our competitors offer deals as an add-on to their core business, and others have adopted a business model similar to ours. In addition to such competitors, we expect to increasingly compete against other large Internet and technology‑based businesses that have launched initiatives which are directly competitive to our core business, our other merchant offerings such as payment processing and point of sale, and other initiatives such as our tablet-based platform for merchants and Pages. We also expect to compete against other Internet sites that are focused

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on specific communities or interests and offer coupons or discount arrangements related to such communities or interests. Further, as our business continues to evolve, we anticipate facing new competition. Increased competition in the future may adversely impact our gross billings, revenue and profit margins.

Growth of Groupon Goods. Our Groupon Goods category has experienced significant revenue growth in recent periods. This category has lower margins than our Local category, primarily as a result of shipping and fulfillment costs related to direct revenue transactions. The percentage of revenue generated from our Goods category was 55.8%, 44.2% and 33.1% for the years endedDecember 31, 2014, 2013 and 2012, respectively. We are generally the merchant of record for transactions in our Goods category in North America and also in EMEA beginning in September 2013, such that the resulting direct revenue is reported on a gross basis in our consolidated statements of operations. Growth in direct revenue results in a smaller increase to income and cash flows than growth in third party revenue because direct revenue includes the entire amount of gross billings, before deducting the cost of the related inventory, while third party revenue is net of the merchant’s share of the transaction price. Gross profit as a percentage of revenue on direct revenue transactions in our Goods category was 10.5%, 8.7% and 7.1% for the years endedDecember 31, 2014, 2013 and 2012, respectively. As direct revenue transactions in our Goods category have become a larger component of our overall business in recent periods, the significant revenue growth generated by those transactions has not resulted in comparable growth in gross profit, operating income (loss) or cash flows.

Components of Results of Operations

Third Party and Other Revenue

Third party revenue arises from transactions in which we are acting as a third party marketing agent and consists of the net amount we retain from the sale of Groupons after paying an agreed upon portion of the purchase price to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Other revenue primarily consists of advertising revenue, payment processing revenue, point of sale revenue and commission revenue.

Direct Revenue

Direct revenue arises from transactions, primarily in our Goods category, in which we are the merchant of record and consists of the gross amount we receive from the customer, excluding applicable taxes and net of estimated refunds.

Cost of Revenue

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue transactions, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating our own fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting, and other processing fees, are allocated to cost of third party revenue, direct revenue and other revenue in proportion to gross billings during the period.

Technology costs within cost of revenue include the payroll and stock‑based compensation expense related to the Company's technology support personnel who are responsible for operating and maintaining the infrastructure of the Company's websites and mobile applications. Technology costs within cost of revenue also include a portion of amortization expense from internal-use software, primarily related to website development. Other technology-related costs within cost of revenue include email distribution costs. Editorial costs included in cost of revenue consist of payroll and stock‑based compensation expense related to the Company's editorial personnel, as these staff members are primarily dedicated to drafting and promoting deals.

Marketing

Marketing expense consists primarily of targeted online marketing costs, such as sponsored search, advertising on social networking sites, email marketing campaigns, affiliate programs and, to a lesser extent, offline marketing costs such as television, radio and print advertising. Additionally, marketing payroll and stock‑based compensation expense are classified as marketing expense. We record these costs within "Marketing" on the consolidated statements of operations when incurred. From time to time, we offer deals with well-known national merchants for subscriber acquisition and customer activation purposes, for which the amount we owe the merchant for each voucher sold exceeds the transaction price paid by the customer. Our gross billings from those transactions generate no third party revenue and our net cost (i.e., the excess of the amount owed to the merchant over the amount paid by the customer) is classified as marketing expense. Our marketing activities also include elements that are not

36

presented as "Marketing" on our consolidated statements of operations, such as order discounts, free shipping on qualifying merchandise sales and accepting lower margins on our deals. Marketing is the primary method by which we acquire customers and promote awareness and, as such, is a critical part of our growth strategy.

Selling, General and Administrative

Selling expenses reported within "Selling, general and administrative" on the consolidated statements of operations consist of payroll, stock-based compensation expense and sales commissions for sales representatives, as well as costs associated with supporting the sales function such as technology, telecommunications and travel. General and administrative expenses include payroll and stock-based compensation expense for employees involved in general corporate functions, such as accounting, finance, tax, legal and human resources, as well as customer service, operations and technology and product development personnel. Additional costs included in general and administrative include depreciation and amortization, rent, professional fees, litigation costs, travel and entertainment, recruiting, office supplies, maintenance, certain technology costs and other general corporate costs.

Acquisition‑Related Expense (Benefit), Net

Acquisition-related expense (benefit) , net includes the change in the fair value of contingent consideration arrangements related to business combinations. See Note 14 "Fair Value Measurements." For the years endedDecember 31, 2014 and 2013, acquisition-related expense (benefit), net also includes external transaction costs related to business combinations, primarily consisting of legal and advisory fees. Such costs were not material for the year ended December 31, 2012.

Other Expense, Net

Other expense, net includes interest income on our cash and cash equivalents, interest expense on capital leases and the revolving credit agreement, impairments of investments, gains and losses on equity method investments and foreign currency transaction gains and losses, primarily resulting from intercompany balances with our subsidiaries that are denominated in foreign currencies.

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Results of Operations

Comparison of the Years EndedDecember 31, 2014 and 2013:

	Year Ended December 31,
	2014			2013
	(in thousands)
Revenue:
Third party and other	$	1,627,539		$	1,654,654
Direct	1,564,149			919,001
Total revenue	3,191,688			2,573,655
Cost of revenue:
Third party and other	241,885			232,062
Direct	1,400,617			840,060
Total cost of revenue	1,642,502			1,072,122
Gross profit	1,549,186			1,501,533
Operating expenses:
Marketing	269,043			214,824
Selling, general and administrative	1,293,716			1,210,966
Acquisition-related expense (benefit), net	1,269			(11		)
Total operating expenses	1,564,028			1,425,779
(Loss) income from operations	(14,842		)	75,754
Other expense, net	(33,353		)	(94,663		)
Loss before provision for income taxes	(48,195		)	(18,909		)
Provision for income taxes	15,724			70,037
Net loss	(63,919		)	(88,946		)
Net income attributable to noncontrolling interests	(9,171		)	(6,447		)
Net loss attributable to Groupon, Inc.	$	(73,090	)	$	(95,393	)

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Classification of stock-based compensation within cost of revenue and operating expenses

Cost of revenue and operating expenses include stock-based compensation as follows:

	Year Ended December 31,
	2014				2013
	Statement of Operations line item		Stock-based compensation included in line item		Statement of Operations line item			Stock-based compensation included in line item
	(in thousands)
Total cost of revenue	$	1,642,502	$	3,611	$	1,072,122		$	1,982
Operating expenses:
Marketing	$	269,043	$	9,733	$	214,824		$	9,677
Selling, general and administrative	1,293,716		108,675		1,210,966			109,803
Acquisition-related expense (benefit), net	1,269		—		(11		)	—
Total operating expenses	$	1,564,028	$	118,408	$	1,425,779		$	119,480

Foreign exchange rate neutral operating results

The effect on our gross billings, revenue, cost of revenue and operating expenses, and (loss) income from operations for the year ended December 31, 2014 from changes in exchange rates versus the U.S. dollar was as follows:

	Year Ended December 31, 2014
	At Avg.			Exchange
	2013			Rate Effect			As
	Rates (1)			Effect (2)			Reported
	(in thousands)
Gross billings	$	7,620,860		$	(39,900	)	$	7,580,960
Revenue	$	3,217,762		$	(26,074	)	$	3,191,688
Cost of revenue and operating expenses	3,233,993			(27,463		)	3,206,530
(Loss) income from operations	$	(16,231	)	$	1,389		$	(14,842	)

(1) Represents the financial statement balances that would have resulted had exchange rates in the reporting period been the same as those in effect in the prior year period.

(2) Represents the increase or decrease in reported amounts resulting from changes in exchange rates from those in effect in the prior year period.

Gross Billings

Gross billings represents the total dollar value of customer purchases of goods and services, excluding applicable taxes and net of estimated refunds. Gross billings for the years endedDecember 31, 2014 and 2013 were as follows:

	Year Ended December 31,
	2014		2013
	(in thousands)
Gross billings:
Third party	$	5,989,584	$	4,824,659
Direct	1,564,149		919,001
Other	27,227		13,670
Total gross billings	$	7,580,960	$	5,757,330

For third party revenue deals, gross billings differs from third party revenue reported in our consolidated statements of operations, which is presented net of the merchant's share of the transaction price. For direct revenue deals and other revenue,

39

gross billings are equivalent to direct revenue and other revenue reported in our consolidated statements of operations. Gross billings increased by $1,823.6 million to $7,581.0 million for the year ended December 31, 2014, as compared to $5,757.3 million for the year ended December 31, 2013, primarily due to the acquisition of Ticket Monster which contributed $1,343.1 million in gross billings for the year ended December 31, 2014. The overall increase was comprised of a $1,164.9 million increase in gross billings from third party revenue transactions and a $645.1 million increase in gross billings from direct revenue transactions. The increase in gross billings was driven by an increase in active customers and the volume of transactions, resulting from the Ticket Monster acquisition and our global efforts to build our marketplaces and increase our offerings to customers. The unfavorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $39.9 million.

We offer goods and services through three primary categories: Local, Goods and Travel within our North America, EMEA and Rest of World segments. We also earn advertising revenue, payment processing revenue, point of sale revenue and commission revenue. Gross billings, revenue, cost of revenue and gross profit from these other sources were previously considered to be distinct from our primary categories and were aggregated with gross billings, revenue, cost of revenue and gross profit from Travel, our smallest category. In recent periods, these other revenue sources have been increasingly viewed by management as a component of the Local category, as they are primarily generated through our relationships with local and national merchants. Accordingly, we updated our presentation of category information, effective beginning with the quarter ended March 31, 2014, to include other gross billings, revenue, cost of revenue and gross profit within the Local category in the tables below, and the prior year category information has been retrospectively adjusted to conform to the current year presentation. The increase in our gross billings was comprised of a $1,235.1 million increase in our Goods category, a $296.5 million increase in our Local category and a $292.0 million increase in our Travel category.

Gross Billings by Segment

Gross billings by segment for the years endedDecember 31, 2014and2013were as follows:

	Year Ended December 31,
	2014		% of total		2013		% of total
	(dollars in thousands)
Gross billings:
North America	$	3,303,479	43.6	%	$	2,847,244	49.5	%
EMEA	2,046,807		27.0		1,983,599		34.5
Rest of World	2,230,674		29.4		926,487		16.0
Total gross billings	$	7,580,960	100.0	%	$	5,757,330	100.0	%

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Gross billings by category and segment for the years endedDecember 31, 2014 and 2013 were as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,
	2014		2013		2014		2013		2014		2013		2014		2013
Local (1):
Third party and other(2)	$	1,864,141	$	1,747,143	$	950,141	$	987,428	$	689,560	$	471,017	$	3,503,842	$	3,205,588
Direct	—		1,772		—		—		—		—		—		1,772
Total	1,864,141		1,748,915		950,141		987,428		689,560		471,017		3,503,842		3,207,360
Goods:
Third party	27,527		68,818		368,344		590,635		1,143,064		291,270		1,538,935		950,723
Direct	1,074,913		774,023		442,344		115,881		46,892		27,325		1,564,149		917,229
Total	1,102,440		842,841		810,688		706,516		1,189,956		318,595		3,103,084		1,867,952
Travel:
Third party(2)	336,898		255,488		285,978		289,655		351,158		136,875		974,034		682,018
Total gross billings	$	3,303,479	$	2,847,244	$	2,046,807	$	1,983,599	$	2,230,674	$	926,487	$	7,580,960	$	5,757,330

(1) Includes gross billings from deals with local merchants, from deals with national merchants, and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other gross billings as a component of the Local category. Other gross billings were previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current year presentation.

North America

North America segment gross billings increased by $456.2 million to $3,303.5 million for the year ended December 31, 2014, as compared to $2,847.2 million for the year ended December 31, 2013. The increase in gross billings was comprised of a $259.6 million increase in our Goods category, which included $82.4 million of gross billings from our Ideel acquisition. The increase in gross billings also includes a $115.2 million increase in our Local category and an $81.4 million increase in our Travel category. The increase in gross billings in the North America segment resulted from an increase in active customers, partially offset by lower gross billings per average active customer. We believe that increases in transaction activity by active customers who make purchases on mobile devices and in the number of deals that we offered contributed to the growth in gross billings for our North America segment. In addition, we have continued to refine our approach to targeting customers and have undertaken marketing initiatives to increase consumer awareness of deals available through our marketplaces, which we believe contributed to the gross billings growth. These marketing activities include order discounts, which are reported as a reduction of gross billings. Order discounts increased to $69.5 million for the year ended December 31, 2014, as compared to $21.2 million in the prior year.

Historically, our customers often purchased a Groupon voucher when they received our email with a limited-time offer, even though they may not have intended to use the voucher in the near term. The growth in recent periods of our marketplaces of deals has enabled customers to wait until they are ready to use the related vouchers before making purchases. We believe that this shift in purchasing behavior adversely impacted gross billings in recent periods. However, we believe that the potential impact of these changes in the timing of customer purchases on our gross billings growth has become less significant because the prior year includes some of the effects of those purchasing trends.

EMEA

EMEA segment gross billings increased by $63.2 millionto $2,046.8 million for the year ended December 31, 2014, as compared to $1,983.6 million for the year ended December 31, 2013. The increase in gross billings was comprised of a $104.2 million increase in our Goods category, resulting from increased unit sales in this category for the year ended December 31, 2014, as compared to the prior year. The increase in gross billings in the EMEA segment also resulted from an increase in active customers for the year ended December 31, 2014, as compared to the prior year. The increase in Goods gross billings was partially offset by a $37.3 million decrease in our Local category and a $3.7 million decrease in our Travel category. The unfavorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $7.5 million.

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    Rest of World

Rest of World segment gross billings increased by $1,304.2 million to $2,230.7 million for the year ended December 31, 2014, as compared to $926.5 million for the year ended December 31, 2013. The increase in gross billings was attributable to our acquisition of Ticket Monster, which contributed $1,343.1 million in gross billings for the year ended December 31, 2014, and also generated increased unit sales and an increase in active customers for the year ended December 31, 2014, as compared to the prior year. The increase in gross billings was comprised of an $871.4 million increase in our Goods category, a $218.5 million increase in our Local category and a $214.3 million increase in our Travel category. The unfavorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $29.5 million.

On a pro forma basis, the combined gross billings of our Rest of World segment, as if the Company had acquired Ticket Monster as of January 1, 2013, were $1,809.9 million for the year ended December 31, 2013. This pro forma gross billings amount is not necessarily indicative of what the actual results of the combined company would have been if the acquisition had occurred as of January 1, 2013, nor is it indicative of future results.

Revenue

Revenue for theyears endedDecember 31, 2014and2013was as follows:

	Year Ended December 31,
	2014		2013
	(in thousands)
Revenue:
Third party	$	1,600,312	$	1,640,984
Direct	1,564,149		919,001
Other	27,227		13,670
Total revenue	$	3,191,688	$	2,573,655

Revenue increased by $618.0 million to $3,191.7 million for the year ended December 31, 2014, as compared to $2,573.7 million for the year ended December 31, 2013. This increase was attributable to the $646.9 million increase in direct revenue from transactions in our Goods category. The increase in revenue was partially offset by a $40.7 million decrease in third party revenue. The net increase in revenue was attributable to increased unit sales and an increase in active customers for the year ended December 31, 2014, as compared to the prior year. We also increased the number of merchant relationships and the volume of deals we offer to our customers. Our acquisitions of Ticket Monster and Ideel contributed $149.6 million and $82.4 million of revenue, respectively, for the year ended December 31, 2014. The unfavorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $26.1 million.

Third Party Revenue

Third party revenue decreased by $40.7 million to $1,600.3 million for the year ended December 31, 2014, as compared to $1,641.0 million for the year ended December 31, 2013. The decrease in third party revenue is primarily due to a $64.1 million decrease in our Local category. Although third party gross billings in our Local category increased $284.7 million, the percentage of gross billings that we retained after deducting the merchant's share decreased to 34.7% for the year ended December 31, 2014, as compared to 39.8% for the year ended December 31, 2013. The decrease in third party revenue in the current year was also due to a $3.3 million decrease in our Goods category, which resulted from a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 14.1% for the year ended December 31, 2014, as compared to 23.1% for the year ended December 31, 2013. The decrease in third party revenue was partially offset by a $26.7 million increase in our Travel category, which resulted from a $292.0 million increase in gross billings, partially offset by a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 18.2% for the year ended December 31, 2014, as compared to 22.1% for the year ended December 31, 2013. Our acquisition of Ticket Monster contributed $125.2 million of third party revenue for the year ended December 31, 2014. The decrease in the percentage of gross billings that we retained after deducting the merchant's share primarily reflects the impact of Ticket Monster's lower deal margins.

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Direct Revenue

Direct revenue increased by $645.1 million to $1,564.1 million for the year ended December 31, 2014, as compared to $919.0 million for the year ended December 31, 2013. Direct revenue for the year ended December 31, 2014 includes $82.4 million from our Ideel acquisition. We are generally the merchant of record for transactions in our Goods category in North America and also in EMEA beginning in September 2013, such that the resulting revenue is reported on a gross basis within direct revenue. Growth in direct revenue will result in a smaller increase in income from operations than growth in third party revenue because direct revenue includes the entire amount of gross billings, before deducting the cost of the related inventory, while third party revenue is net of the merchant's share of the transaction price. Additionally, our Goods category has lower margins than our Local category, primarily as a result of shipping and fulfillment costs related to direct revenue transactions. 

We believe that direct revenue deals in our Goods category will increase in the future in the EMEA and Rest of World segments as we continue to build out our global supply chain infrastructure.

Other Revenue

Other revenue increased by $13.6 million to $27.2 million for the year ended December 31, 2014, as compared to $13.7 million for the year ended December 31, 2013, primarily due to increases in payment processing revenue, advertising revenue and commission revenue. Other revenue also includes point of sale revenue. Those other revenue sources were not individually significant for the years ended December 31, 2014 and 2013, and we do not expect them to be material in the near term.

Revenue by Segment

Revenue by segment for the years endedDecember 31, 2014 and 2013 was as follows:

	Year Ended December 31,
	2014		% of total		2013		% of total
	(dollars in thousands)
North America:
Third party and other	$	749,548	23.5	%	$	745,563	29.0	%
Direct	1,074,913		33.7		775,795		30.1
Total segment revenue	1,824,461		57.2		1,521,358		59.1
EMEA:
Third party	518,786		16.3		627,034		24.4
Direct	442,344		13.8		115,881		4.5
Total segment revenue	961,130		30.1		742,915		28.9
Rest of World:
Third party	359,205		11.3		282,057		11.0
Direct	46,892		1.4		27,325		1.0
Total segment revenue	406,097		12.7		309,382		12.0
Total revenue	$	3,191,688	100.0	%	$	2,573,655	100.0	%

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Revenue by category and segment for the years endedDecember 31, 2014and2013was as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,
	2014		2013		2014		2013		2014		2013		2014		2013
Local (1):
Third party and other(2)	$	674,605	$	671,846	$	391,179	$	430,020	$	167,552	$	182,010	$	1,233,336	$	1,283,876
Direct revenue	—		1,772		—		—		—		—		—		1,772
Total	674,605		673,618		391,179		430,020		167,552		182,010		1,233,336		1,285,648
Goods:
Third party	5,966		17,409		63,650		133,117		146,984		69,344		216,600		219,870
Direct revenue	1,074,913		774,023		442,344		115,881		46,892		27,325		1,564,149		917,229
Total	1,080,879		791,432		505,994		248,998		193,876		96,669		1,780,749		1,137,099
Travel:
Third party(2)	68,977		56,308		63,957		63,897		44,669		30,703		177,603		150,908
Total revenue	$	1,824,461	$	1,521,358	$	961,130	$	742,915	$	406,097	$	309,382	$	3,191,688	$	2,573,655

(1) Includes revenue from deals with local and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other revenue as a component of the Local category. Other revenue was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current year presentation.

North America

North America segment revenue increased by $303.1 million to $1,824.5 million for the year ended December 31, 2014, as compared to $1,521.4 million for the year ended December 31, 2013. The increase in revenue primarily resulted from a $300.9 million increase in direct revenue from our Goods category, which includes $82.4 million of direct revenue from Ideel, which we acquired in January 2014. Direct revenue, which is recorded on a gross basis, is derived primarily from selling products through our Goods category where we are the merchant of record. Revenue in our Travel category also increased by $12.7 million, which resulted from an $81.4 million increase in gross billings, partially offset by a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 20.5% for the year ended December 31, 2014, as compared to 22.0% for the year ended December 31, 2013. Third party and other revenue in our Local category increased $2.8 million, which resulted from a $117.0 million increase in gross billings, partially offset by a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 36.2% for the year ended December 31, 2014, as compared to 38.5% for the year ended December 31, 2013. These decreases in the percentage of gross billings that we retained after deducting the merchant's share reflects the overall results of individual deal-by-deal negotiations with merchants and can vary significantly from period-to-period. We have been willing to accept lower deal margins in order to improve the quality and increase the number of deals offered to customers by offering more attractive terms to merchants. The overall increase in revenue in our North America segment was also due to an increase in active customers, partially offset by lower gross billings per average active customer.

We believe that increases in transaction activity on mobile devices and in the number of deals that we offered contributed to the growth in revenue for our North America segment. In addition, we have continued to refine our approach to targeting customers and have undertaken marketing initiatives to increase consumer awareness of deals available through our marketplaces, which we believe contributed to the revenue growth. These marketing related activities include order discounts, which are reported as a reduction of revenue. Order discounts increased to $69.5 million for the year ended December 31, 2014, as compared to $21.2 million in the prior year.

EMEA

EMEA segment revenue increased by $218.2 million to $961.1 million for the year ended December 31, 2014, as compared to $742.9 million for the year ended December 31, 2013. The increase in revenue primarily resulted from a $326.5 million increase in direct revenue from our Goods category. Revenue from transactions in the Goods category in our EMEA segment was primarily

44

presented on a net basis within third party revenue for much of the prior year, as we were not typically the merchant of record for those transactions outside of the United States. However, we began increasing the number of product deals offered in our EMEA segment for which we are the merchant of record beginning in September 2013. As a result, the proportion of direct revenue deals in the Goods category of our EMEA segment increased for the year ended December 31, 2014 as compared to the prior year. We expect that the proportion of direct revenue deals in the Goods category of our EMEA segment will continue to increase in future periods.

The increase in direct revenue in our Goods category was partially offset by a $69.5 million decrease in third party revenue in our Goods category, which resulted from a $222.3 million decrease in gross billings, due to the shift to more direct revenue transactions as described above, and a decrease in the percentage of gross billings that we retained after deducting the merchant's share to 17.3% for the year ended December 31, 2014, as compared to 22.5% for the year ended December 31, 2013. The increase in revenue from our Goods category was partially offset by a $38.8 million decrease in third party and other revenue from our Local category, which primarily resulted from a decrease in the percentage of third party and other gross billings that we retained after deducting the merchant's share to 41.2% for the year ended December 31, 2014, as compared to 43.5% for the year ended December 31, 2013. These decreases in the percentage of third party and other gross billings that we retained during the year ended December 31, 2014 reflect the overall results of individual deal-by-deal negotiations with our merchants and can vary significantly from period-to-period. We have been willing to accept lower deal margins, as compared to the prior year period, in order to improve the quality and increase the number of deals offered to our customers by offering more attractive terms to merchants.

The overall increase in revenue in our EMEA segment was also due to increased unit sales and an increase in active customers for the year ended December 31, 2014, as compared to the prior year. The unfavorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $4.4 million.

Rest of World

Rest of World segment revenue increased by $96.7 million to $406.1 million for the year ended December 31, 2014, as compared to $309.4 million for the year ended December 31, 2013. The increase in revenue was attributable to our acquisition of Ticket Monster, which contributed $149.6 million in revenue for the year ended December 31, 2014, partially offset by a $52.9 million decrease in revenue for the remainder of our Rest of World segment. Revenue from our Goods category increased by $97.2 million for the year ended December 31, 2014, as compared to the prior year, due to a $77.6 million increase in third party revenue, which resulted from an $851.8 million increase in gross billings, partially offset by a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 12.9% for the year ended December 31, 2014, as compared to 23.8% in the prior year. The increase in third party revenue from our Goods category was attributable to the Ticket Monster acquisition, and the decrease in the percentage of gross billings that we retained after deducting the merchant's share primarily reflects the impact of Ticket Monster's lower deal margins. In our Rest of World segment, revenue from transactions in our Goods category are primarily presented on a net basis within third party revenue, as we have not typically been the merchant of record for those transactions outside of the United States and EMEA. The $52.9 million decrease in revenue for our Rest of World segment, excluding Ticket Monster, was driven by a decrease in active customers, the unfavorable impact of year-over-year changes in foreign exchange rates and the curtailment of our legacy Korean operations as a result of the Ticket Monster acquisition, partially offset by an increase in gross billings per average active customer and increased unit sales for the year ended December 31, 2014, as compared to the prior year.

The increase in revenue from our Rest of World segment included a $14.0 million increase in revenue from our Travel category, which resulted from a $214.3 million increase in gross billings, partially offset by a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 12.7% for the year ended December 31, 2014, as compared to 22.4% for the year ended December 31, 2013. Although gross billings on third party and other revenue transactions in our Local category increased by $218.5 million, third party and other revenue in our Local category decreased by $14.5 million, which resulted from a reduction in the percentage of third party and other gross billings that we retained after deducting the merchant's share to 24.3% for the year ended December 31, 2014, as compared to 38.6% for the year ended December 31, 2013. These decreases in the percentage of gross billings that we retained after deducting the merchant's share primarily reflects the impact of Ticket Monster's lower deal margins. The unfavorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $20.8 million.

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Cost of Revenue

Cost of revenue on third party, direct revenue and other deals for the years endedDecember 31, 2014 and 2013 was as follows:

	Year Ended December 31,
	2014		2013
	(in thousands)
Cost of revenue:
Third party	$	225,752	$	224,840
Direct	1,400,617		840,060
Other	16,133		7,222
Total cost of revenue	$	1,642,502	$	1,072,122

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue deals, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating our own fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees, are allocated to cost of third party revenue, direct revenue, and other revenue in proportion to gross billings during the period. As a result of the significant growth we have experienced from direct revenue transactions relative to our total gross billings for the year ended December 31, 2014, as compared to the prior year, an increased share of those allocable costs has been allocated to cost of direct revenue in our consolidated statement of operations for the year ended December 31, 2014.

Cost of revenue increased by $570.4 million to $1,642.5 million for the year ended December 31, 2014, as compared to $1,072.1 million for the year ended December 31, 2013, which was attributable to the growth in direct revenue from our Goods category. The increase in cost of revenue was primarily driven by the cost of inventory and related shipping and fulfillment costs on direct revenue deals, which were not as significant during the prior year. We currently outsource a majority of our global inventory fulfillment activities to third party logistics providers. We expect to reduce our usage of those third parties in future periods by transitioning additional inventory fulfillment work to internal resources. For example, we launched a fulfillment center in the United States during the fourth quarter of 2013. Additionally, to further reduce the involvement of third party logistics providers, we have increased our use of arrangements in which the suppliers of our product offerings ship merchandise directly to our customers. We are also refining our inventory management practices to better allocate inventories among warehouses in different geographic regions to reduce shipping distances to customers and increase units per transaction. We believe that these initiatives will ultimately reduce our fulfillment costs and improve the margins on direct revenue transactions in our Goods category. However, we may incur increased fulfillment costs from time to time as we enhance our internal processes and continue to transition fulfillment work from third party logistics providers.

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Cost of Revenue by Segment

Cost of revenue by segment for the years endedDecember 31, 2014and2013was as follows:

	Year Ended December 31,
	2014		% of total		2013		% of total
	(dollars in thousands)
North America:
Third party and other	$	106,375	6.5	%	$	98,697	9.2	%
Direct	986,103		60.0		709,824		66.2
Total segment cost of revenue	1,092,478		66.5		808,521		75.4
EMEA:
Third party	39,578		2.4		70,102		6.5
Direct	364,638		22.2		102,687		9.6
Total segment cost of revenue	404,216		24.6		172,789		16.1
Rest of World:
Third party	95,932		5.8		63,263		5.9
Direct	49,876		3.1		27,549		2.6
Total segment cost of revenue	145,808		8.9		90,812		8.5
Total cost of revenue	$	1,642,502	100.0	%	$	1,072,122	100.0	%

Cost of revenue by category and segment for the years endedDecember 31, 2014 and 2013 was as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,				Year Ended   December 31,
	2014		2013		2014		2013		2014		2013		2014		2013
Local (1):
Third party and other(2)	$	93,538	$	89,123	$	26,634	$	46,295	$	29,025	$	28,604	$	149,197	$	164,022
Direct	—		2,554		—		—		—		—		—		2,554
Total	93,538		91,677		26,634		46,295		29,025		28,604		149,197		166,576
Goods:
Third party	854		2,090		8,216		16,760		55,498		29,645		64,568		48,495
Direct	986,103		707,270		364,638		102,687		49,876		27,549		1,400,617		837,506
Total	986,957		709,360		372,854		119,447		105,374		57,194		1,465,185		886,001
Travel:
Third party(2)	11,983		7,484		4,728		7,047		11,409		5,014		28,120		19,545
Total cost of revenue	$	1,092,478	$	808,521	$	404,216	$	172,789	$	145,808	$	90,812	$	1,642,502	$	1,072,122

(1) Includes cost of revenue from deals with local merchants and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other cost of revenue as a component of the Local category. Other cost of revenue was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current year presentation.

North America

North America cost of revenue increased by $284.0 million to $1,092.5 million for the year ended December 31, 2014, as compared to $808.5 million for the year ended December 31, 2013. The increase in cost of revenue was primarily driven by the cost of inventory and shipping costs related to direct revenue deals in our Goods category, due to the growth of that category as compared to the prior year. Cost of revenue for the year ended December 31, 2014 includes $70.4 million from the Ideel acquisition.

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EMEA

EMEA cost of revenue increased by $231.4 millionto $404.2 millionfor the year ended December 31, 2014, as compared to $172.8 million for the year ended December 31, 2013. The increase in cost of revenue was primarily driven by the cost of inventory related to direct revenue deals in our Goods category, as we began increasing the number of product deals offered in our EMEA segment for which we are the merchant of record beginning in September 2013.

Rest of World

Rest of World cost of revenue increased by $55.0 million to $145.8 million for the year ended December 31, 2014, as compared to $90.8 million for the year ended December 31, 2013. Cost of revenue for the year ended December 31, 2014 includes $65.7 million from the Ticket Monster acquisition, which primarily consists of credit card processing fees and the cost of inventory and shipping costs.

Gross Profit

Gross profitfor theyears endedDecember 31, 2014and2013was as follows:

	Year Ended December 31,
	2014		2013
	(in thousands)
Gross profit:
Third party	$	1,374,560	$	1,416,144
Direct	163,532		78,941
Other	11,094		6,448
Total gross profit	$	1,549,186	$	1,501,533

Gross profit increased by $47.7 million to $1,549.2 million for the year ended December 31, 2014, as compared to $1,501.5 million for the year ended December 31, 2013. This increase in gross profit resulted from the $618.0 million increase in revenue during the year ended December 31, 2014, partially offset by the $570.4 million increase in cost of revenue. The acquisitions of Ticket Monster and Ideel contributed $83.9 million and $12.0 million of gross profit, respectively, for the year ended December 31, 2014.

Gross profit as a percentage of revenue decreased to 48.5% for the year ended December 31, 2014, as compared to 58.3% for the year ended December 31, 2013. The decrease in gross profit as a percentage of revenue during the year ended December 31, 2014, as compared to the prior year, was primarily attributable to the increase in direct revenue. Direct revenue primarily relates to deals in our Goods category, which typically have lower margins than deals in our Local and Travel categories. Additionally, direct revenue and the related cost of revenue are presented on a gross basis in our consolidated statements of operations, which contributes to lower gross profit as a percentage of revenue.

Gross profit on third party revenue decreased by $41.6 million to $1,374.6 million for the year ended December 31, 2014, as compared to $1,416.1 million for the year ended December 31, 2013. This decrease in gross profit resulted from the $40.7 million decrease in third party revenue. Gross profit as a percentage of revenue on third party revenue deals decreased to 85.9% for the year ended December 31, 2014, as compared to 86.3% for the year ended December 31, 2013.

Gross profit on direct revenue increased by $84.6 million to $163.5 million for the year ended December 31, 2014, as compared to $78.9 million for the year ended December 31, 2013. This increase in gross profit resulted from the $645.1 million increase in direct revenue to $1,564.1 million for the year ended December 31, 2014, as compared to $919.0 million for the year ended December 31, 2013, partially offset by the $560.6 million increase in cost of revenue on direct revenue deals to $1,400.6 million for the year ended December 31, 2014, as compared to $840.1 million for the year ended December 31, 2013. Gross profit as a percentage of revenue on direct revenue deals increased to 10.5% for the year ended December 31, 2014, as compared to 8.6% for the year ended December 31, 2013. The increase in gross profit as a percentage of revenue on direct revenue deals was attributable, in part, to lower shipping and fulfillment costs as a percentage of direct revenue, partially offset by increased cost of inventory sold as a percentage of direct revenue.

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Gross Profit by Segment

Gross profit by segment for the years endedDecember 31, 2014 and 2013 was as follows:

	Year Ended December 31,
	2014			% of total		2013			% of total
	(dollars in thousands)
North America:
Third party and other	$	643,173		41.5	%	$	646,866		43.1	%
Direct	88,810			5.7		65,971			4.4
Total gross profit	731,983			47.2		712,837			47.5
EMEA:
Third party	479,208			30.9		556,932			37.1
Direct	77,706			5.0		13,194			0.9
Total gross profit	556,914			35.9		570,126			38.0
Rest of World:
Third party	263,273			17.0		218,794			14.6
Direct	(2,984		)	(0.1	)	(224		)	(0.1	)
Total gross profit	260,289			16.9		218,570			14.5
Total gross profit	$	1,549,186		100.0	%	$	1,501,533		100.0	%

Gross profit by category and segment for the years endedDecember 31, 2014 and 2013 was as follows (in thousands):

	North America					EMEA				Rest of World						Consolidated
	Year Ended   December 31,					Year Ended   December 31,				Year Ended   December 31,						Year Ended   December 31,
	2014		2013			2014		2013		2014			2013			2014		2013
Local (1):
Third party and other(2)	$	581,067	$	582,723		$	364,545	$	383,725	$	138,527		$	153,406		$	1,084,139	$	1,119,854
Direct	—		(782		)	—		—		—			—			—		(782		)
Total	581,067		581,941			364,545		383,725		138,527			153,406			1,084,139		1,119,072
Goods:
Third party	5,112		15,319			55,434		116,357		91,486			39,699			152,032		171,375
Direct	88,810		66,753			77,706		13,194		(2,984		)	(224		)	163,532		79,723
Total	93,922		82,072			133,140		129,551		88,502			39,475			315,564		251,098
Travel:
Third party(2)	56,994		48,824			59,229		56,850		33,260			25,689			149,483		131,363
Total gross profit	$	731,983	$	712,837		$	556,914	$	570,126	$	260,289		$	218,570		$	1,549,186	$	1,501,533

(1) Includes gross profit from deals with local and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other gross profit as a component of the Local category. Other gross profit was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current year presentation.

North America

North America gross profit increased by $19.1 million to $732.0 million for the year ended December 31, 2014, as compared to $712.8 million for the year ended December 31, 2013. The increase in gross profit was comprised of an $11.9 million increase in our Goods category and an $8.2 million increase in our Travel category.

EMEA

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EMEA gross profit decreased by $13.2 million to $556.9 million for the year ended December 31, 2014, as compared to $570.1 million for the year ended December 31, 2013. The decrease in gross profit was comprised of a $19.2 million decrease in our Local category, partially offset by a $3.6 million increase in our Goods category and a $2.4 million increase in our Travel category.

Rest of World

Rest of World gross profit increased by $41.7 million to $260.3 million for year ended December 31, 2014, as compared to $218.6 million for the year ended December 31, 2013. The increase in gross profit was comprised of a $49.0 million increase in our Goods category and a $7.6 million increase in our Travel category, partially offset by a $14.9 million decrease in our Local category.

Marketing

For the years endedDecember 31, 2014 and 2013, marketing expense was $269.0 million and $214.8 million, respectively.Marketing expense by segment as a percentage of segment gross billings, as a percentage of segment revenue and as a percentage of total marketing expense for the years endedDecember 31, 2014 and 2013 was as follows:

	Year Ended December 31,
	2014		% of Segment Gross Billings		% of Segment Revenue		% of Total Marketing		2013		% of Segment Gross Billings		% of Segment Revenue		% of Total Marketing
	(dollars in thousands)
North America	$	137,648	4.2	%	7.5	%	51.2	%	$	113,612	4.0	%	7.5	%	52.9	%
EMEA	76,752		3.7		8.0		28.5		65,130		3.3		8.8		30.3
Rest of World	54,643		2.4		13.5		20.3		36,082		3.9		11.7		16.8
Total marketing	$	269,043	3.5		8.4		100.0	%	$	214,824	3.7		8.3		100.0	%

Marketing is the primary method by which we acquire customers, and as such, is an important element of our business. Marketing expense increased by $54.2 million to $269.0 million for the year ended December 31, 2014, as compared to $214.8 million for the year ended December 31, 2013. Marketing expense as a percentage of gross billings and revenue of 3.5% and 8.4%, respectively, for the year ended December 31, 2014, was consistent with the 3.7% and 8.3%, respectively, for the year ended December 31, 2013. We evaluate marketing expense as a percentage of gross billings and revenue because it gives us an indication of how well our marketing spend is driving gross billings and revenue growth. The favorable impact on marketing from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $0.7 million.

Our marketing activities also include elements that are not presented as "Marketing" on our consolidated statements of operations, such as order discounts, free shipping on qualifying merchandise sales and accepting lower margins on our deals.

North America

North America marketing expense increased by $24.0 million to $137.6 million for the year ended December 31, 2014, as compared to $113.6 million for the year ended December 31, 2013. The increase in marketing expense was primarily attributable to increased spending on online marketing channels, such as search engine marketing, display advertising and affiliate programs that utilize third parties to promote our deals online, in connection with our initiatives to grow our active customer base and increase awareness of the pull marketplace.

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EMEA

EMEA marketing expense increased by $11.6 million to $76.8 million for the year ended December 31, 2014, as compared to $65.1 million for the year ended December 31, 2013. The increase in marketing expense was primarily due to increased spending on online marketing channels, such as search engine marketing, display advertising and affiliate programs that utilize third parties to promote our deals online, in connection with our initiatives to grow our active customer base and increase awareness of the pull marketplace.

Rest of World

Rest of World marketing expense increased by $18.6 million to $54.6 million for the year ended December 31, 2014, as compared to $36.1 million for the year ended December 31, 2013. These increases were primarily attributable to our acquisition of Ticket Monster, as we incurred $27.1 million of marketing expenditures for the year ended December 31, 2014 in connection with our initiatives to grow the business.

Selling, General and Administrative

Selling, general and administrative expense increased by $82.8 million to $1,293.7 million for the year ended December 31, 2014, as compared to $1,211.0 million for the year ended December 31, 2013. This increase was attributable to the Ticket Monster and Ideel acquisitions. Wages and benefits (excluding stock-based compensation) within selling, general and administrative expense increased by $51.4 million for the year ended December 31, 2014, as compared to the prior year, primarily due to the additional employees from those acquisitions, as well as additional technology and product development personnel. Depreciation and amortization recorded within selling, general and administrative expense increased by $49.4 million for the year ended December 31, 2014, which includes increased amortization expense related to intangible assets acquired as part of those acquisitions. Rent expense recorded within selling, general and administrative expenses increased by $10.9 million for year ended December 31, 2014, which was primarily driven by additional operating leases assumed as part of those acquisitions. These increases were partially offset by lower corporate costs, including lower consulting and legal costs.

For the year ended December 31, 2014, selling, general and administrative expense as a percentage of gross billings and revenue was 17.1% and 40.5%, respectively, as compared to 21.0% and 47.1%, respectively, for the year ended December 31, 2013. While revenue increased by $618.0 million, or 24.0%, for the year ended December 31, 2014, as compared to the prior year, selling, general and administrative expense increased by $82.8 million, or 6.8%. The favorable impact on selling, general and administrative expense from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $14.0 million. We are continuing to refine our sales management and administrative processes, including through automation and ongoing regionalization of back-office functions, in connection with our efforts to generate increased operating efficiencies.

Acquisition‑Related Expense (Benefit), Net

For the years endedDecember 31, 2014 and 2013, we incurred a net acquisition-related expense of $1.3 million and a benefit of less than $0.1 million, respectively. For the year ended December 31, 2014, the net acquisition-related expense included $3.7 million of external transaction costs, primarily related to the acquisitions of Ticket Monster and Ideel as described in Note 3 "Business Combinations," partially offset by $2.4 million related to changes in the fair value of contingent consideration. See Note 14 "Fair Value Measurements" for information about fair value measurements of contingent consideration arrangements.

(Loss) Income from Operations

The loss from operations for the year ended December 31, 2014 was $14.8 million, as compared to income from operations for the year ended December 31, 2013 of $75.8 million. The change in (loss) income from operations for the year ended December 31, 2014, as compared to the prior year, was primarily due to the increase in selling, general and administrative expense of $82.8 million and marketing expense of $54.2 million, partially offset by the increase in gross profit of $47.7 million. The favorable impact on the loss from operations from year-over-year changes in foreign exchange rates for the year ended December 31, 2014 was $1.4 million.

North America

Segment operating income in our North America segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, decreased by $71.3 million to $69.3 million for the year ended December 31, 2014, as compared to $140.6 million for the year ended December 31, 2013. The decrease in segment operating income was attributable to an increase in segment operating expenses, partially offset by an increase in segment gross profit.

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EMEA

Segment operating income in our EMEA segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, decreased by $7.4 million to $104.1 million for the year ended December 31, 2014, as compared to $111.5 million for the year ended December 31, 2013. The decrease in segment operating income was attributable to a decrease in segment gross profit and an increase in segment operating expenses.

Rest of World

Segment operating loss in our Rest of World segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, increased by $10.1 million to a loss of $65.0 million for the year ended December 31, 2014, as compared to a loss of $54.9 million for the year ended December 31, 2013. The increased segment operating loss was attributable to an increase in segment operating expenses, partially offset by an increase in segment gross profit.

Other Expense, Net

Other expense, net was $33.4 million for the year ended December 31, 2014, as compared to $94.7 million for the year ended December 31, 2013. The current year loss was primarily comprised of $31.5 million in foreign currency transaction losses and $2.0 million of other-than-temporary impairments related to minority investments. The foreign currency transaction losses resulted from intercompany balances with our subsidiaries that are denominated in foreign currencies. The foreign currency losses on those intercompany balances were primarily driven by the significant decline in the Euro against the U.S. dollar from an exchange rate of 1.3763 on December 31, 2013 to 1.2152 on December 31, 2014. For the year ended December 31, 2013, other expense, net was primarily comprised of $85.9 million of other-than-temporary impairments related to minority investments and $10.3 million of foreign currency transaction losses.

Provision for Income Taxes

For the years ended December 31, 2014 and 2013, we recorded income tax expense of $15.7 million and $70.0 million, respectively.

The effective tax rate was (32.6)% for the year ended December 31, 2014, as compared to (370.4)% for the year ended December 31, 2013. Significant factors impacting our effective tax rate for the years ended December 31, 2014 and 2013 included losses in jurisdictions that we are 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.

We expect that our consolidated effective tax rate in future periods will continue to differ significantly from the U.S. federal income tax rate as a result of our tax obligations in jurisdictions with profits and valuation allowances in jurisdictions with losses. Our consolidated effective tax rate in future periods will also be adversely impacted by the amortization of the tax effects of intercompany transactions, including intercompany sales of intellectual property that we expect to undertake in the future.

We are currently undergoing income tax audits in multiple jurisdictions. There are many factors, including factors outside of our control, which influence the progress and completion of these audits. For the year ended December 31, 2014, we decreased our liabilities and income tax expense by $21.0 million and $16.7 million, respectively, due to the expiration of the applicable statute of limitations in a foreign jurisdiction. For the year ended December 31, 2014, we also decreased our liabilities for uncertain tax positions and income tax expense by $7.7 million as a result of new information that impacted our estimate of the amount that is more-likely-than not of being realized upon settlement of a tax position. As of December 31, 2014, we believe that it is reasonably possible that additional changes of up to $15.6 million in unrecognized tax benefits may occur within the next 12 months.

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Comparison of the Years Ended December 31, 2013 and 2012:

	Year Ended December 31,
	2013			2012
	(in thousands)
Revenue:
Third party and other	$	1,654,654		$	1,879,729
Direct	919,001			454,743
Total revenue	2,573,655			2,334,472
Cost of revenue:
Third party and other	232,062			297,739
Direct	840,060			421,201
Total cost of revenue	1,072,122			718,940
Gross profit	1,501,533			1,615,532
Operating expenses:
Marketing	214,824			336,854
Selling, general and administrative	1,210,966			1,179,080
Acquisition-related (benefit) expense, net	(11		)	897
Total operating expenses	1,425,779			1,516,831
Income from operations	75,754			98,701
Other expense, net	(94,663		)	(3,759		)
(Loss) income before provision for income taxes	(18,909		)	94,942
Provision for income taxes	70,037			145,973
Net loss	(88,946		)	(51,031		)
Net income attributable to noncontrolling interests	(6,447		)	(3,742		)
Net loss attributable to Groupon, Inc.	(95,393		)	(54,773		)
Adjustment of redeemable noncontrolling interests to redemption value	—			(12,604		)
Net loss attributable to common stockholders	$	(95,393	)	$	(67,377	)

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Classification of stock-based compensation within cost of revenue and operating expenses

Cost of revenue and operating expenses include stock-based compensation as follows:

	Year Ended December 31,
	2013					2012
	Statement of Operations line item			Stock-based compensation included in line item		Statement of Operations line item		Stock-based compensation included in line item
	(in thousands)
Total cost of revenue	$	1,072,122		$	1,982	$	718,940	$	2,928
Operating expenses:
Marketing	$	214,824		$	9,677	$	336,854	$	3,570
Selling, general and administrative	1,210,966			109,803		1,179,080		97,619
Acquisition-related (benefit) expense, net	(11		)	—		897		—
Total operating expenses	$	1,425,779		$	119,480	$	1,516,831	$	101,189

Foreign exchange rate neutral operating results

The effect on our gross billings, revenue, cost of revenue and operating expenses, and income from operations for the year ended December 31, 2013 from changes in exchange rates versus the U.S. dollar was as follows:

	Year Ended December 31, 2013
	At Avg.		Exchange
	2012		Rate
	Rates (1)		Effect (2)			As Reported
	(in thousands)
Gross billings	$	5,797,599	$	(40,269	)	$	5,757,330
Revenue	$	2,585,376	$	(11,721	)	$	2,573,655
Cost of revenue and operating expenses	2,513,664		(15,763		)	2,497,901
Income from operations	$	71,712	$	4,042		$	75,754

(1) Represents the financial statement balances that would have resulted had exchange rates in the reporting period been the same as those in effect in the comparable prior year period.

(2) Represents the increase or decrease in reported amounts resulting from changes in exchange rates from those in effect in the comparable prior year period.

Gross Billings

Gross billings for the years ended December 31, 2013 and 2012 were as follows:

	Year Ended December 31,
	2013		2012
	(in thousands)
Gross billings:
Third party	$	4,824,659	$	4,905,022
Direct	919,001		454,743
Other	13,670		20,419
Total gross billings	$	5,757,330	$	5,380,184

Gross billings increased by $377.1 million to $5,757.3 million for the year ended December 31, 2013, as compared to $5,380.2 million for the year ended December 31, 2012. The increase was comprised of a $464.3 million increase in gross billings

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from direct revenue transactions, partially offset by an $80.4 million decrease in gross billings from third party revenue transactions and a $6.7 million decrease in gross billings from other revenue transactions. The net increase in gross billings was driven by an increase in active customers and the volume of transactions. The unfavorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $40.3 million.

We offer goods and services through three primary categories: Local, Goods and Travel within our North America, EMEA and Rest of World segments. We also earn advertising revenue, payment processing revenue, point of sale revenue and commission revenue. Gross billings, revenue, cost of revenue and gross profit from these other sources were previously considered to be distinct from our primary categories and were aggregated with gross billings, revenue, cost of revenue and gross profit from Travel, our smallest category. In recent periods, these other revenue sources have been increasingly viewed by management as a component of the Local category, as they are primarily generated through our relationships with local and national merchants. Accordingly, we updated our presentation of category information, effective beginning with the quarter ended March 31, 2014, to include other gross billings, revenue, cost of revenue and gross profit within the Local category in the tables below, and the prior year category information has been retrospectively adjusted to conform to the current period presentation. The increase in our gross billings was comprised of a $373.2 million increase in our Goods category and a $31.2 million increase in our Travel category, partially offset by a $27.3 million decrease in our Local category, which was primarily driven by declines in our Rest of World segment.

Gross Billings by Segment

Gross billings by segment for the years ended December 31, 2013 and 2012 were as follows:

	Year Ended December 31,
	2013		% of total		2012		% of total
	(dollars in thousands)
Gross billings:
North America	$	2,847,244	49.5	%	$	2,373,153	44.1	%
EMEA	1,983,599		34.5		1,928,508		35.8
Rest of World	926,487		16.0		1,078,523		20.1
Total gross billings	$	5,757,330	100.0	%	$	5,380,184	100.0	%

Gross billings by category and segment for the years ended December 31, 2013 and 2012 were as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended December 31,				Year Ended December 31,				Year Ended December 31,				Year Ended December 31,
	2013		2012		2013		2012		2013		2012		2013		2012
Local (1):
Third party and other(2)	$	1,747,143	$	1,628,843	$	987,428	$	1,018,088	$	471,017	$	575,642	$	3,205,588	$	3,222,573
Direct	1,772		12,037		—		—		—		—		1,772		12,037
Total gross billings	1,748,915		1,640,880		987,428		1,018,088		471,017		575,642		3,207,360		3,234,610
Goods:
Third party	68,818		172,859		590,635		572,950		291,270		310,458		950,723		1,056,267
Direct	774,023		391,238		115,881		36,393		27,325		10,822		917,229		438,453
Total gross billings	842,841		564,097		706,516		609,343		318,595		321,280		1,867,952		1,494,720
Travel:
Third party(2)	255,488		168,176		289,655		296,824		136,875		181,601		682,018		646,601
Direct	—		—		—		4,253		—		—		—		4,253
Total gross billings	255,488		168,176		289,655		301,077		136,875		181,601		682,018		650,854
Total gross billings	$	2,847,244	$	2,373,153	$	1,983,599	$	1,928,508	$	926,487	$	1,078,523	$	5,757,330	$	5,380,184

(1) Includes gross billings from deals with local and national merchants and through local events.

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(2) During the three months ended March 31, 2014, the Company began classifying other gross billings as a component of the Local category. Other gross billings were previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current period presentation.

North America

North America segment gross billings increased by $474.1 million to $2,847.2 million for the year ended December 31, 2013, as compared to $2,373.2 million for the year ended December 31, 2012. The increase in gross billings was comprised of a $278.7 million increase in our Goods category, a $108.0 million increase in our Local category and an $87.3 million increase in our Travel category. The increase in gross billings in the North America segment resulted from higher unit sales and an increase in active customers for the year ended December 31, 2013, as compared to the prior year. We believe that increases in transaction activity by active customers who made purchases on mobile devices and in the number of deals that we offered contributed to the growth in gross billings for our North America segment. In addition, we have continued to refine our approach to targeting customers through our emails, on our websites and through our mobile applications by sending and highlighting deals for specific locations and personal preferences, which we believe contributed to the gross billings growth.

Although North America segment gross billings increased by 20.0% during the year ended December 31, 2013, as compared to the prior year, we believe that there were a number of factors that may have negatively impacted gross billings. For example, we believe that the continued growth of our online marketplaces of deals, where merchants have a continuous presence on our websites for an extended period of time, is impacting the timing of customer purchases in our Local category. Historically, our customers often purchased a Groupon voucher when they received our email with a limited-time offer, even though they may not have intended to use the voucher in the near term. However, the growth of marketplaces of deals enables customers to wait until they are ready to use the related vouchers before making purchases, which we believe adversely impacted gross billings during the year ended December 31, 2013. Additionally, a more significant portion of our marketing has been directed toward increasing downloads of our mobile applications, and we have reduced our spending on email subscriber acquisition. On average, it takes longer for customers to make an initial purchase after downloading our mobile application than it does after subscribing to our emails and we believe that this shift in our marketing toward mobile application downloads adversely impacted our gross billings during the year ended December 31, 2013.

EMEA

EMEA segment gross billings increased by $55.1 millionto $1,983.6 million for the year ended December 31, 2013, as compared to $1,928.5 million for the year ended December 31, 2012. The increase in gross billings was comprised of a $97.2 million increase in our Goods category, resulting from higher unit sales in this category for the year ended December 31, 2013, as compared to the prior year. The increase in gross billings was partially offset by a $30.7 million decrease in our Local category and an $11.4 million decrease in our Travel category, resulting from lower unit sales in these categories for the year ended December 31, 2013, as compared to the prior year. Our gross billings were also negatively impacted by lower gross billings per average active customer in our EMEA segment for the year ended December 31, 2013, as compared to the prior year. The favorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $37.6 million.

    Rest of World

Rest of World segment gross billings decreased by $152.0 million to $926.5 million for the year ended December 31, 2013, as compared to $1,078.5 million for the year ended December 31, 2012. The decrease in gross billings was comprised of a $104.6 million decrease in our Local category, a $44.7 million decrease in our Travel category and a $2.7 million decrease in our Goods category. The decrease in gross billings in the Rest of World segment resulted from unfavorable foreign exchange rate fluctuations, lower gross billings per average active customer and lower unit sales for the year ended December 31, 2013, as compared to the prior year, as well as overall weakness in some of our markets. The unfavorable impact on gross billings from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $76.7 million. Lower unit sales were attributable, in part, to actions we have taken to reduce the number of local and travel deals offered in many of the smaller cities within our Rest of World segment in order to reduce our marketing and selling costs by focusing on markets that provide better scaling opportunities.

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Revenue

Revenue for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		2012
	(in thousands)
Revenue:
Third party	$	1,640,984	$	1,859,310
Direct	919,001		454,743
Other	13,670		20,419
Total revenue	$	2,573,655	$	2,334,472

Revenue increased by $239.2 million to $2,573.7 million for the year ended December 31, 2013, as compared to $2,334.5 million for the year ended December 31, 2012. The primary driver of this increase was the $464.3 million increase in direct revenue from transactions, primarily in our Goods category. This increase in direct revenue was partially offset by a $218.3 million decrease in third party revenue and a $6.7 million decrease in other revenue. The net increase in revenue was attributable to an increase in active customers and units purchased for the year ended December 31, 2013, as compared to the prior year. In addition, we have continued to refine our approach to targeting customers through our emails, on our websites and through our mobile applications by sending and highlighting deals for specific locations and personal preferences, which we believe contributed to revenue growth. We also increased the number of merchant relationships and the volume of deals we offer to our customers. The unfavorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $11.7 million.

Third Party Revenue

Third party revenue decreased by $218.3 million to $1,641.0 million for the year ended December 31, 2013, as compared to $1,859.3 million for the year ended December 31, 2012. The decrease in third party revenue was primarily due to a $114.6 million decrease in our Goods category, which resulted from a $105.5 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 23.1% for the year ended December 31, 2013, as compared to 31.7% in the prior year. Third party revenue in our Goods category also decreased as a result of the increasing proportion of direct revenue transactions in that category. The decrease in third party revenue was also due to a $98.6 million decrease in our Local category, which resulted from a $10.2 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 39.8% for the year ended December 31, 2013, as compared to 42.7% for the year ended December 31, 2012. The decreases in the percentage of gross billings that we retained after deducting the merchant's share were attributable, in part, to an $18.5 million one-time increase during the prior year period in revenue from unredeemed Groupons in Germany, as described below.

We recognized a one-time increase of $18.5 million to third party revenue from unredeemed Groupons during the year ended December 31, 2012. This one-time increase in the prior year period represented the cumulative impact of deals in Germany for which, based on a German tax ruling, our obligation to the merchant would have ended prior to the third quarter of 2012. For merchant payment arrangements that are structured under a redemption payment model, we retain all of the gross billings from unredeemed Groupons. We record incremental revenue from unredeemed Groupons and derecognize the related accrued merchant payable when our legal obligation to the merchant expires, which we believe is shortly after deal expiration in most jurisdictions which use a pay on redemption model. However, we had historically concluded based on our interpretation of applicable German law that our obligation to merchants in that jurisdiction extended for three years. Due to the German tax ruling, which requires us to remit value-added taxes (VAT) earlier on unredeemed Groupons, we began recognizing revenue from unredeemed Groupons in Germany shortly after deal expiration, which is consistent with most other jurisdictions in which we pay on redemption.

Direct Revenue

Direct revenue increased by $464.3 million to $919.0 million for the year ended December 31, 2013, as compared to $454.7 million for the year ended December 31, 2012. We are generally the merchant of record for transactions in the Goods category in North America and also in EMEA beginning in September 2013, such that the resulting revenue is reported on a gross basis within direct revenue. Direct revenue deals have continued to grow, both overall and as a percentage of our revenue, through the continued growth of our Goods category, and we expect that trend to continue for the foreseeable future. In addition, we expect that any growth in direct revenue will result in a smaller increase in income from operations than growth in third party revenue

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because direct revenue includes the entire amount of gross billings, before deducting the cost of the related inventory, while third party revenue is net of the merchant's share of the transaction price. Additionally, our Goods category has lower margins than our Local category, primarily as a result of shipping and fulfillment costs related to direct revenue transactions. 

Other Revenue

Other revenue decreased by $6.7 million to $13.7 million for the year ended December 31, 2013, as compared to $20.4 million for the year ended December 31, 2012, primarily due to a decrease in advertising revenue. Other revenue also includes point of sale and payment processing revenue, which we launched in the third quarter of 2012, and commission revenue, which we launched in the fourth quarter of 2013. Point of sale revenue, payment processing revenue and commission revenue were not significant for the years ended December 31, 2013 and 2012, and we do not expect them to be material in the near term.

Revenue by Segment

Revenue by segment for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		% of total		2012		% of total
	(dollars in thousands)
North America:
Third party and other	$	745,563	29.0	%	$	762,424	32.7	%
Direct	775,795		30.1		403,276		17.2
Total segment revenue	1,521,358		59.1		1,165,700		49.9
EMEA:
Third party	627,034		24.4		764,830		32.8
Direct	115,881		4.5		40,646		1.7
Total segment revenue	742,915		28.9		805,476		34.5
Rest of World:
Third party	282,057		11.0		352,475		15.1
Direct	27,325		1.0		10,821		0.5
Total segment revenue	309,382		12.0		363,296		15.6
Total revenue	$	2,573,655	100.0	%	$	2,334,472	100.0	%

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Revenue by category and segment for the years ended December 31, 2013 and 2012was as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended December 31,				Year Ended December 31,				Year Ended December 31,				Year Ended December 31,
	2013		2012		2013		2012		2013		2012		2013		2012
Local (1):
Third party and other(2)	$	671,846	$	665,587	$	430,020	$	501,782	$	182,010	$	221,859	$	1,283,876	$	1,389,228
Direct revenue	1,772		12,037		—		—		—		—		1,772		12,037
Total revenue	673,618		677,624		430,020		501,782		182,010		221,859		1,285,648		1,401,265
Goods:
Third party	17,409		60,269		133,117		186,495		69,344		87,746		219,870		334,510
Direct revenue	774,023		391,239		115,881		36,393		27,325		10,821		917,229		438,453
Total revenue	791,432		451,508		248,998		222,888		96,669		98,567		1,137,099		772,963
Travel:
Third party(2)	56,308		36,568		63,897		76,553		30,703		42,870		150,908		155,991
Direct revenue	—		—		—		4,253		—		—		—		4,253
Total revenue	56,308		36,568		63,897		80,806		30,703		42,870		150,908		160,244
Total revenue	$	1,521,358	$	1,165,700	$	742,915	$	805,476	$	309,382	$	363,296	$	2,573,655	$	2,334,472

(1) Includes revenue from deals with local and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other revenue as a component of the Local category. Other revenue was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current period presentation.

North America

North America segment revenue increased by $355.7 million to $1,521.4 million for the year ended December 31, 2013, as compared to $1,165.7 million for the year ended December 31, 2012. The increase in revenue primarily resulted from a $382.8 million increase in direct revenue from our Goods category. The increase in direct revenue in our Goods category was partially offset by a $42.9 million decrease in third party revenue in our Goods category, which resulted from a $104.0 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 25.3% for the year ended December 31, 2013, as compared to 34.9% for the year ended December 31, 2012. Revenue in our Travel category increased by $19.7 million, which resulted from an $87.3 million increase in gross billings and an increase in the percentage of gross billings that we retained after deducting the merchant's share to 22.0% for the year ended December 31, 2013, as compared to 21.7% for the year ended December 31, 2012. Additionally, the percentage of gross billings that we retained after deducting the merchant's share in our Local category for third party and other revenue decreased to 38.5% for the year ended December 31, 2013, as compared to 40.9% for the year ended December 31, 2012. These decreases in the percentage of gross billings that we retained after deducing the merchant's share reflect the overall results of individual deal-by-deal negotiations with our merchants and can vary significantly from period-to-period. We have been willing to accept lower deal margins in order to improve the quality and increase the number of deals offered to customers by offering more attractive terms to merchants. The increase in revenue was also due to an increase in active customers and higher unit sales for the year ended December 31, 2013, as compared to the prior year.

EMEA

EMEA segment revenue decreased by $62.6 million to $742.9 million for the year ended December 31, 2013, as compared to $805.5 million for the year ended December 31, 2012. The overall decrease in EMEA segment revenue was primarily due to a $71.8 million decrease in our Local category and a $16.9 million decrease in our Travel category, partially offset by a $26.1 million increase in our Goods category. Revenue from transactions in our Goods category in our EMEA segment have primarily been presented on a net basis within third party revenue, as we were not typically the merchant of record for those transactions outside of the United States. However, we began increasing the number of product deals offered in our EMEA segment for which we are the merchant of record beginning in September 2013, which resulted in a $79.5 million increase in direct revenue from our

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Goods category for the year ended December 31, 2013, as compared to the prior year. As a result, the proportion of direct revenue deals in the Goods category of our EMEA segment increased in the fourth quarter of 2013, and we expect that the proportion of direct revenue deals in the Goods category of our EMEA segment will continue to increase in future periods.

The $71.8 million decrease in revenue in our Local category resulted from a $30.7 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 43.5% for the year ended December 31, 2013, as compared to 49.3% for the year ended December 31, 2012. Although gross billings on third party revenue transactions in our Goods category increased by $17.7 million, revenue on third party deals in our Goods category decreased by $53.4 million, which resulted from a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 22.5% for the year ended December 31, 2013, as compared to 32.5% for the year ended December 31, 2012. Revenue on third party deals in our Travel category decreased $12.7 million, which resulted from a $7.2 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 22.1% for the year ended December 31, 2013, as compared to 25.8% for the year ended December 31, 2012. These decreases in the percentage of gross billings that we retained during the year ended December 31, 2013 reflect the overall results of individual deal-by-deal negotiations with our merchants and can vary significantly from period-to-period. We have been willing to accept lower deal margins, as compared to the prior year, in order to improve the quality and increase the number of deals offered to our customers by offering more attractive terms to merchants. The decrease in revenue was also due to a decrease in active customers, lower gross billings per average active customer and lower unit sales for the year ended December 31, 2013, as compared to the prior year. The decrease in revenue for our EMEA segment was partially offset by a $79.5 million increase in direct revenue from our Goods category, as compared to the prior year. The favorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $16.1 million.

Rest of World

Rest of World segment revenue decreased by $53.9 million to $309.4 million for the year ended December 31, 2013, as compared to $363.3 million for the year ended December 31, 2012. The decrease was primarily due to a $39.8 million decrease in revenue from our Local category, which resulted from a $104.6 million decrease in gross billings. The decrease in revenue for our Rest of World segment was also due to an $18.4 million decrease in third party revenue from our Goods category, which resulted from a $19.2 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 23.8% for the year ended December 31, 2013, as compared to 28.3% for the year ended December 31, 2012. The decrease in revenue for our Rest of World segment was also due to a $12.2 million decrease in revenue from our Travel category, which resulted from a $44.7 million decrease in gross billings and a reduction in the percentage of gross billings that we retained after deducting the merchant's share to 22.4% for the year ended December 31, 2013, as compared to 23.6% for the year ended December 31, 2012. We were willing to accept lower deal margins, as compared to the prior year, in order to improve the quality and increase the number of deals offered to our customers by offering more attractive terms to merchants. The decrease in revenue was also due to lower gross billings per average active customer and lower unit sales for the year ended December 31, 2013, as compared to the prior year. The decrease in revenue for our Rest of World segment was partially offset by a $16.5 million increase in direct revenue from our Goods category for the year ended December 31, 2013, as compared to the prior year. The unfavorable impact on revenue from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $27.5 million.

Cost of Revenue

Cost of revenue on third party, direct revenue and other deals for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		2012
	(in thousands)
Cost of revenue:
Third party	$	224,840	$	297,574
Direct	840,060		421,201
Other	7,222		165
Total cost of revenue	$	1,072,122	$	718,940

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue deals, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are

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comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating our own fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees, are allocated to cost of third party revenue, direct revenue, and other revenue in proportion to gross billings during the period. As a result of the significant growth we have experienced from direct revenue transactions relative to our total gross billings for the year ended December 31, 2013, as compared to the prior year, an increased share of those allocable costs has been allocated to cost of direct revenue in our consolidated statement of operations for the year ended December 31, 2013.

Cost of revenue increased by $353.2 million to $1,072.1 million for the year ended December 31, 2013, as compared to $718.9 million for the year ended December 31, 2012, which was attributable to the growth in direct revenue from our Goods category. The increase in cost of revenue was primarily driven by the cost of inventory and related shipping and fulfillment costs on direct revenue deals, which were not as significant during the prior year. We currently outsource most of our inventory fulfillment activities to third party logistics providers. However, we expect to reduce our usage of those third parties in future periods by transitioning a portion of global inventory fulfillment work to internal resources. We launched a fulfillment center in the United States during the fourth quarter of 2013. We believe the transition to internal fulfillment centers will ultimately reduce our fulfillment costs. However, we may incur increased fulfillment costs in the near term as we build our internal processes and transition the fulfillment work from those third parties.

Cost of Revenue by Segment

Cost of revenue by segment for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		% of total		2012		% of total
	(dollars in thousands)
North America:
Third party and other	$	98,697	9.2	%	$	145,212	20.2	%
Direct	709,824		66.2		365,179		50.8
Total segment cost of revenue	808,521		75.4		510,391		71.0
EMEA:
Third party	70,102		6.5		73,654		10.2
Direct	102,687		9.6		42,638		6.0
Total segment cost of revenue	172,789		16.1		116,292		16.2
Rest of World:
Third party	63,263		5.9		78,873		11.0
Direct	27,549		2.6		13,384		1.8
Total segment cost of revenue	90,812		8.5		92,257		12.8
Total cost of revenue	$	1,072,122	100.0	%	$	718,940	100.0	%

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Cost of revenue by category and segment for the years ended December 31, 2013 and 2012 was as follows (in thousands):

	North America				EMEA				Rest of World				Consolidated
	Year Ended December 31,				Year Ended December 31,				Year Ended December 31,				Year Ended December 31,
	2013		2012		2013		2012		2013		2012		2013		2012
Local (1):
Third party and other(2)	$	89,123	$	123,871	$	46,295	$	47,812	$	28,604	$	48,124	$	164,022	$	219,807
Direct	2,554		10,128		—		—		—		—		2,554		10,128
Total cost of revenue	91,677		133,999		46,295		47,812		28,604		48,124		166,576		229,935
Goods:
Third party	2,090		11,981		16,760		18,066		29,645		21,475		48,495		51,522
Direct	707,270		355,051		102,687		38,914		27,549		13,384		837,506		407,349
Total cost of revenue	709,360		367,032		119,447		56,980		57,194		34,859		886,001		458,871
Travel:
Third party(2)	7,484		9,360		7,047		7,776		5,014		9,274		19,545		26,410
Direct	—		—		—		3,724		—		—		—		3,724
Total cost of revenue	7,484		9,360		7,047		11,500		5,014		9,274		19,545		30,134
Total cost of revenue	$	808,521	$	510,391	$	172,789	$	116,292	$	90,812	$	92,257	$	1,072,122	$	718,940

(1) Includes cost of revenue from deals with local and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other cost of revenue as a component of the Local category. Other cost of revenue was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current period presentation.

North America

North America segment cost of revenue increased by $298.1 million to $808.5 million for the year ended December 31, 2013, as compared to $510.4 million for the year ended December 31, 2012. The increase in cost of revenue was primarily driven by the cost of inventory and shipping and fulfillment costs related to direct revenue deals in our Goods category, due to the growth of that category as compared to the prior year.

EMEA

EMEA segment cost of revenue increased by $56.5 millionto $172.8 millionfor the year ended December 31, 2013, as compared to $116.3 million for the year ended December 31, 2012. The increase in cost of revenue was primarily driven by the cost of inventory and shipping and fulfillment costs related to direct revenue deals in our Goods category, as we began increasing the number of product deals offered in our EMEA segment for which we are the merchant of record beginning in September 2013.

Rest of World

Rest of World segment cost of revenue decreased by $1.4 million to $90.8 million for the year ended December 31, 2013, as compared to $92.3 million for the year ended December 31, 2012. The decrease in cost of revenue was primarily driven by reduced email distribution costs, primarily due to the migration to an internal email distribution platform, lower payroll expense for editorial personnel and a reduction in estimated refunds for which the merchant's share is not recoverable, partially offset by increases in the cost of inventory and shipping and fulfillment costs related to direct revenue deals in our Goods category.

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Gross Profit

Gross profitfor the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		2012
	(in thousands)
Gross profit:
Third party	$	1,416,144	$	1,561,736
Direct	78,941		33,542
Other	6,448		20,254
Total gross profit	$	1,501,533	$	1,615,532

Gross profit decreased by $114.0 million to $1,501.5 million for the year ended December 31, 2013, as compared to $1,615.5 million for the year ended December 31, 2012. This decrease in gross profit resulted from the $353.2 million increase in cost of revenue during the year ended December 31, 2013, partially offset by the $239.2 million increase in revenue. Gross profit as a percentage of revenue decreased to 58.3% for the year ended December 31, 2013, as compared to 69.2% for the year ended December 31, 2012. The decrease in gross profit as a percentage of revenue during the year ended December 31, 2013, as compared to the prior year, was primarily attributable to the increase in direct revenue. Direct revenue primarily relates to deals in our Goods category, which typically have lower margins than deals in our Local category. Additionally, direct revenue and the related cost of revenue are presented on a gross basis in our consolidated statements of operations, which contributes to lower gross profit as a percentage of revenue.

Gross profit on third party revenue decreased by $145.6 million to $1,416.1 million for the year ended December 31, 2013, as compared to $1,561.7 million for the year ended December 31, 2012. This decrease in gross profit resulted from the $218.3 million decrease in third party revenue, partially offset by the $72.7 million decrease in the cost of third party revenue. Gross profit as a percentage of revenue on third party revenue deals increased to 86.3% for the year ended December 31, 2013, as compared to 84.0% for the year ended December 31, 2012. The increase in gross profit as a percentage of revenue on third party revenue deals was attributable, in part, to a lower proportion of the allocable costs within cost of revenue being allocated to the cost of third party revenue for the year ended December 31, 2013, as compared to the prior year. These allocable costs include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees. An increased share of those costs was allocated to the cost of direct revenue due to the increase in gross billings from direct revenue transactions relative to total gross billings.

Gross profit on direct revenue increased by $45.4 million to $78.9 million for the year ended December 31, 2013, as compared to $33.5 million for the year ended December 31, 2012. This increase in gross profit resulted from the $464.3 million increase in direct revenue to $919.0 million for the year ended December 31, 2013, as compared to $454.7 million for the year ended December 31, 2012, partially offset by the $418.9 million increase in cost of revenue on direct revenue deals to $840.1 million for the year ended December 31, 2013, as compared to $421.2 million for the year ended December 31, 2012. Gross profit as a percentage of revenue on direct revenue deals increased to 8.6% for the year ended December 31, 2013, as compared to 7.4% for the year ended December 31, 2012. The increase in gross profit as a percentage of revenue on direct revenue deals was attributable, in part, to lower cost of inventory sold as a percentage of direct revenue, partially offset by increased shipping and fulfillment costs as a percentage of direct revenue.

Gross profit on other revenue decreased by $13.8 million to $6.4 million for the year ended December 31, 2013, as compared to $20.3 million for the year ended December 31, 2012. The decrease in gross profit was driven by the $6.7 million decrease in other revenue, which was primarily attributable to the decrease in advertising revenue, and a $7.1 million increase in cost of revenue, partially attributable to credit card interchange fees related to the Company's payment processing offering, during the year ended December 31, 2013.

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Gross Profit by Segment

Gross profit by segment for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013			% of total		2012			% of total
	(dollars in thousands)
North America:
Third party and other	$	646,866		43.1	%	$	617,212		38.2	%
Direct	65,971			4.4		38,097			2.4
Total gross profit	712,837			47.5		655,309			40.6
EMEA:
Third party	556,932			37.1		691,176			42.8
Direct	13,194			0.9		(1,992		)	(0.1	)
Total gross profit	570,126			38.0		689,184			42.7
Rest of World:
Third party	218,794			14.6		273,602			16.9
Direct	(224		)	(0.1	)	(2,563		)	(0.2	)
Total gross profit	218,570			14.5		271,039			16.7
Total gross profit	$	1,501,533		100.0	%	$	1,615,532		100.0	%

Gross profit by category and segment for the years ended December 31, 2013 and 2012 was as follows (in thousands):

	North America					EMEA					Rest of World						Consolidated
	Year Ended December 31,					Year Ended December 31,					Year Ended December 31,						Year Ended December 31,
	2013			2012		2013		2012			2013			2012			2013			2012
Local (1):
Third party and other(2)	$	582,723		$	541,716	$	383,725	$	453,970		$	153,406		$	173,735		$	1,119,854		$	1,169,421
Direct	(782		)	1,909		—		—			—			—			(782		)	1,909
Total gross profit	581,941			543,625		383,725		453,970			153,406			173,735			1,119,072			1,171,330
Goods:
Third party	15,319			48,288		116,357		168,429			39,699			66,271			171,375			282,988
Direct	66,753			36,188		13,194		(2,521		)	(224		)	(2,563		)	79,723			31,104
Total gross profit	82,072			84,476		129,551		165,908			39,475			63,708			251,098			314,092
Travel:
Third party(2)	48,824			27,208		56,850		68,777			25,689			33,596			131,363			129,581
Direct	—			—		—		529			—			—			—			529
Total gross profit	48,824			27,208		56,850		69,306			25,689			33,596			131,363			130,110
Total gross profit	$	712,837		$	655,309	$	570,126	$	689,184		$	218,570		$	271,039		$	1,501,533		$	1,615,532

(1) Includes gross profit from deals with local merchants and national merchants and through local events.

(2) During the three months ended March 31, 2014, the Company began classifying other gross profit as a component of the Local category. Other gross profit was previously aggregated with the Travel category. The prior year category information has been retrospectively adjusted to conform to the current period presentation.

North America

North America segment gross profit increased by $57.5 million to $712.8 million for the year ended December 31, 2013, as compared to $655.3 million for the year ended December 31, 2012. The increase in gross profit was comprised of a $38.3 million increase in our Local category and a $21.6 million increase in our Travel category.

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EMEA

EMEA segment gross profit decreased by $119.1 million to $570.1 million for the year ended December 31, 2013, as compared to $689.2 million for the year ended December 31, 2012. The decrease in gross profit was comprised of a $70.2 million decrease in our Local category, a $36.4 million decrease in our Goods category and a $12.5 million decrease in our Travel category.

Rest of World

Rest of World segment gross profit decreased by $52.5 million to $218.6 million for the year ended December 31, 2013, as compared to $271.0 million for the year ended December 31, 2012. The decrease in gross profit was comprised of a $24.2 million decrease in our Goods category, a $20.3 million decrease in our Local category and a $7.9 million decrease in our Travel category.

Marketing

For the years ended December 31, 2013 and 2012, marketing expense was $214.8 million and $336.9 million, respectively.Marketing expense by segment as a percentage of segment gross billings, as a percentage of segment revenue and as a percentage of total marketing expense for the years ended December 31, 2013 and 2012 was as follows:

	Year Ended December 31,
	2013		% of Segment Gross Billings		% of Segment Revenue		% of Total Marketing		2012		% of Segment Gross Billings		% of Segment Revenue		% of Total Marketing
	(dollars in thousands)
North America	$	113,612	4.0	%	7.5	%	52.9	%	$	105,914	4.5	%	9.1	%	31.4	%
EMEA	65,130		3.3		8.8		30.3		156,476		8.1		19.4		46.5
Rest of World	36,082		3.9		11.7		16.8		74,464		6.9		20.5		22.1
Total marketing	$	214,824	3.7		8.3		100.0	%	$	336,854	6.3		14.4		100.0	%

Marketing is the primary method by which we acquire customers, and as such, is an important element of our business. Marketing expense decreased by $122.0 million to $214.8 million for the year ended December 31, 2013, as compared to $336.9 million for the year ended December 31, 2012. Marketing expense as a percentage of gross billings and revenue for the year ended December 31, 2013 has decreased from the prior year, which we believe is due to efficiencies we have realized from building a subscriber base and shifting the focus of our marketing spend to customer activation and mobile application downloads. As our markets continued to develop throughout 2013, the focus of our marketing spend shifted from subscriber acquisition marketing to customer activation and mobile application downloads, which contributed to lower marketing expense during the year ended December 31, 2013, as compared to the prior year. Additionally, we have enhanced our return on investment analyses for marketing expenditures and we continue to enhance our technology and methods for optimizing marketing expenditures, which we believe has resulted in more efficient marketing spending in recent periods. We evaluate our marketing expense as a percentage of gross billings and revenue because it gives us an indication of how well our marketing spend is driving the volume of transactions.

Our marketing activities also include elements that are not presented as "Marketing" on our consolidated statements of operations, such as order discounts, free shipping on merchandise sales and accepting lower margins on our deals.

North America

North America segment marketing expense increased by $7.7 million to $113.6 million for the year ended December 31, 2013, as compared to $105.9 million for the year ended December 31, 2012. The increase in marketing expense for the year ended December 31, 2013 as compared to the prior year was primarily attributable to an increase in mobile marketing spend in connection with our initiatives to increase customer demand for deals offered through our platform.

EMEA

EMEA segment marketing expense decreased by $91.3 million to $65.1 million for the year ended December 31, 2013, as compared to $156.5 million for the year ended December 31, 2012. The decreases were primarily attributable to a decrease in online marketing spend. This reflects the continued shift in marketing spend from subscriber acquisition to customer activation and mobile application downloads and our enhanced return on investment analyses for marketing expenditures, which contributed

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to lower marketing expense during the year ended December 31, 2013.

Rest of World

Rest of World segment marketing expense decreased by $38.4 million to $36.1 million for the year ended December 31, 2013, as compared to $74.5 million for the year ended December 31, 2012. The decreases were primarily attributable to a decrease in online marketing spend. This reflects the continued shift from subscriber acquisition marketing to customer activation and our enhanced return on investment analyses for marketing expenditures, which contributed to lower marketing expense during the year ended December 31, 2013.

Selling, General and Administrative

Selling, general and administrative expense increased by $31.9 million to $1,211.0 million for the year ended December 31, 2013, as compared to $1,179.1 million for the year ended December 31, 2012. The increase in selling, general and administrative expense was primarily due to increases in depreciation and amortization, wages and benefits, stock-based compensation and system maintenance expenses, partially offset by lower general corporate costs and consulting and professional fees. Depreciation and amortization recorded within selling, general and administrative expense increased by $25.8 million for the year ended December 31, 2013, primarily due to increased amortization expense related to higher internally-developed software and computer hardware balances, as compared to the prior year. There was a $14.9 million increase in system maintenance expenses for the year ended December 31, 2013, as compared to the prior year, as a result of investments in technology and our corporate infrastructure. Wages and benefits (excluding stock-based compensation) within selling, general and administrative expense increased by $12.3 million for the year ended December 31, 2013. Stock-based compensation costs recorded within selling, general and administrative expense increased by $12.2 million for the year ended December 31, 2013, as compared to the prior year. Those increases were partially offset by general corporate costs, which decreased $16.5 million for the year ended December 31, 2013, as compared to the prior year, primarily due to a reduction in telecommunication expenses, office equipment and office supplies. Consulting and professional fees also decreased by $13.2 million for the year ended December 31, 2013, as compared to the prior year.

For the year ended December 31, 2013, selling, general and administrative expense as a percentage of gross billings and revenue was 21.0% and 47.1%, respectively, as compared to 21.9% and 50.5%, respectively, for the year ended December 31, 2012. Although revenue increased by $239.2 million, or 10.2%, for the year ended December 31, 2013, as compared to the prior year, selling, general and administrative expense increased by $31.9 million, or 2.7%. We are continuing to refine our sales management and administrative processes, including through automation, in connection with our efforts to generate increased operating efficiencies.

Acquisition‑Related (Benefit) Expense, Net

For the years ended December 31, 2013 and 2012, we incurred a net acquisition-related benefit of less than $0.1 million and expense of $0.9 million, respectively. Acquisition-related (benefit) expense, net is comprised of the change in fair value of contingent consideration arrangements and, beginning in 2013, also includes external transaction costs related to business combinations, primarily consisting of legal and advisory fees. For the year ended December 31, 2013, the net acquisition-related benefit included $3.2 million related to changes in the fair value of contingent consideration, partially offset by $3.2 million of external transaction costs related to business combinations. The external transaction costs incurred in 2013 were primarily related to the acquisition of Ticket Monster, which closed on January 2, 2014. Such transaction costs were not material for the year ended December 31, 2012. See Note 14 "Fair Value Measurements" for information about fair value measurements of contingent consideration arrangements.

Income from Operations

Income from operations decreased by $22.9 million to $75.8 million for the year ended December 31, 2013, as compared to $98.7 million for the year ended December 31, 2012. The decrease in income from operations for the year ended December 31, 2013, as compared to the prior year, was primarily due to the decrease in gross profit of $114.0 million and the increase in selling, general and administrative expense of $31.9 million, partially offset by the decrease in marketing expense of $122.0 million. The favorable impact on income from operations from year-over-year changes in foreign exchange rates for the year ended December 31, 2013 was $4.0 million.

North America

Segment operating income in our North America segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, increased by $0.9 million to $140.6 million for the year ended December 31, 2013, as compared to

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$139.7 million for the year ended December 31, 2012. The increase in segment operating income was primarily attributable to an increase in gross profit, partially offset by an increase in segment operating expenses.

EMEA

Segment operating income in our EMEA segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, increased by $5.5 million to $111.5 million for the year ended December 31, 2013, as compared to $106.0 million for the year ended December 31, 2012. The increase in segment operating income was primarily attributable to a decrease in segment operating expenses, partially offset by a decrease in gross profit.

Rest of World

Segment operating loss in our Rest of World segment, which excludes stock-based compensation and acquisition-related expense (benefit), net, increased by $12.9 million to a loss of $54.9 million for the year ended December 31, 2013, as compared to a loss of $42.0 million for the year ended December 31, 2012. The increased segment operating loss was primarily attributable to a decrease in gross profit, partially offset by a decrease in segment operating expenses.

Other Expense, Net

Other expense, net was $94.6 million for the year ended December 31, 2013, as compared to $3.7 million for the year ended December 31, 2012. During the year ended December 31, 2013, other expense, net included an $85.5 million impairment of our investments in F-tuan. During the year ended December 31, 2012, other expense, net included a $56.0 million gain resulting from the E-Commerce transaction partially offset by a $50.6 million impairment of our investments in F-tuan. The impairments of our investments in F-tuan and the gain on the E-Commerce transaction are described in Note 6 "Investments." The change in other expense, net was also due to an increase in foreign currency transaction losses for the year ended December 31, 2013, as compared to the prior year.

Provision for Income Taxes

For the years ended December 31, 2013 and 2012, we recorded income tax expense of $70.0 million and $146.0 million, respectively.

The effective tax rate was (370.4)% for the year ended December 31, 2013, as compared to 153.7% for the year ended December 31, 2012. The most significant factors impacting our effective tax rate for the years ended December 31, 2013 and 2012 were losses in jurisdictions that we are 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 effective tax rate for the year ended December 31, 2013 was also impacted by the release of a portion of the valuation allowance in the United States against our federal and state deferred tax assets, which resulted in a $9.6 million reduction to income tax expense.

We expect that our consolidated effective tax rate in future periods will continue to differ significantly from the U.S. federal income tax rate as a result of our tax obligations in jurisdictions with profits and valuation allowances in jurisdictions with losses. Our consolidated effective tax rate in future periods will also be adversely impacted by the amortization of the tax effects of intercompany transactions, including intercompany sales of intellectual property that we expect to undertake in the future.

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Non-GAAP Financial Measures

In addition to financial results reported in accordance with U.S. GAAP, we have provided the following non-GAAP financial measures: Adjusted EBITDA, free cash flow and foreign exchange rate neutral operating results. These non-GAAP financial measures are used in addition to and in conjunction with results presented in accordance with U.S. GAAP. However, these measures are not intended to be a substitute for those reported in accordance with U.S. GAAP. These measures may be different from non-GAAP financial measures used by other companies, even when similar terms are used to identify such measures.

Adjusted EBITDA. Adjusted EBITDA is a non-GAAP financial measure that comprises net loss excluding income taxes, interest and other non-operating items, depreciation and amortization, stock-based compensation and acquisition-related expense (benefit), net. We exclude stock-based compensation expense and depreciation and amortization because they are primarily non-cash in nature, and we believe that non-GAAP financial measures excluding these items provide meaningful supplemental information about our operating performance and liquidity. Acquisition-related expense (benefit), net is comprised of the change in the fair value of contingent consideration arrangements and external transaction costs related to business combinations, primarily consisting of legal and advisory fees. Our definition of Adjusted EBITDA may differ from similar measures used by other companies, even when similar terms are used to identify such measures. Adjusted EBITDA is a key measure used by our management and Board of Directors to evaluate operating performance, generate future operating plans and make strategic decisions for the allocation of capital. Accordingly, we believe that Adjusted EBITDA provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and Board of Directors.

The following is a reconciliation of Adjusted EBITDA to the most comparable U.S. GAAP financial measure, "Net loss" for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)
Adjustments:
Stock-based compensation(1)	122,019			121,462			104,117
Acquisition-related expense (benefit), net(2)	1,269			(11		)	897
Depreciation and amortization	144,921			89,449			55,801
Other expense, net	33,353			94,663			3,759
Provision for income taxes	15,724			70,037			145,973
Total adjustments	317,286			375,600			310,547
Adjusted EBITDA	$	253,367		$	286,654		$	259,516

(1) Represents stock-based compensation expense recorded within "Selling, general and administrative," "Cost of revenue," and "Marketing" on the consolidated statements of operations.

(2) Represents changes in the fair value of contingent consideration related to business combinations and external transaction costs related to business combinations, primarily consisting of legal and advisory fees. External transaction costs were not material for the year ended December 31, 2012.

Free cash flow. Free cash flow is a non-GAAP financial measure that comprises net cash provided by operating activities less purchases of property and equipment and capitalized software. We use free cash flow, and ratios based on it, to conduct and evaluate our business because, although it is similar to cash flow from operations, we believe that it typically represents a more useful measure of cash flows because purchases of fixed assets, software developed for internal-use and website development costs are necessary components of our ongoing operations. Free cash flow is not intended to represent the total increase or decrease in our cash balance for the applicable period.

Free cash flow has limitations due to the fact that it does not represent the residual cash flow available for discretionary expenditures. For example, free cash flow does not include the cash payments for business acquisitions. In addition, free cash flow reflects the impact of the timing difference between when we are paid by customers and when we pay merchants and suppliers. Therefore, we believe it is important to view free cash flow as a complement to our entire consolidated statements of cash flows.

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The following is a reconciliation of free cash flow to the most comparable U.S. GAAP financial measure, "Net cash provided by operating activities," for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Net cash provided by operating activities	$	288,824		$	218,432		$	266,834
Purchases of property and equipment and capitalized software	(88,292		)	(63,505		)	(95,836		)
Free cash flow	$	200,532		$	154,927		$	170,998
Net cash used in investing activities	$	(229,456	)	$	(96,315	)	$	(194,979	)
Net cash (used in) provided by financing activities	$	(194,156	)	$	(81,697	)	$	12,095

Foreign exchange rate neutral operating results. Foreign exchange rate neutral operating results show current year operating results as if foreign currency exchange rates had remained the same as those in effect in the prior year. These measures are intended to facilitate comparisons to our historical performance. For a reconciliation of foreign exchange rate neutral operating results to the most comparable U.S. GAAP financial measure, see "Results of Operations" above.

Liquidity and Capital Resources

As of December 31, 2014, we had $1,071.9 million in cash and cash equivalents, which primarily consisted of cash, money market accounts and overnight securities.

Since our inception, we have funded our working capital requirements and expansion primarily with cash flows provided by operations and through public and private sales of common and preferred stock, which have yielded net proceeds of approximately $1,857.1 million. We generated positive cash flow from operations for the year endedDecember 31, 2014 and we expect cash flows from operations to be positive in annual periods for the foreseeable future. We generally use this cash flow to fund our operations, make acquisitions, purchase capital assets, purchase treasury stock and meet our other cash operating needs. Cash flow provided by operations was $288.8 million, $218.4 million and $266.8 million for the years ended December 31, 2014, 2013 and 2012, respectively.

We consider the undistributed earnings of our foreign subsidiaries as of December 31, 2014 to be indefinitely reinvested and, accordingly, no U.S. income taxes have been provided thereon. As of December 31, 2014, the amount of cash and cash equivalents held in foreign jurisdictions was approximately $409.4 million. We have not, nor do we anticipate the need to, repatriate funds to the United States to satisfy domestic liquidity needs arising in the ordinary course of business.

In August 2014, we entered into a three-year senior secured revolving credit agreement (the "Credit Agreement") that provides for aggregate principal borrowings of up to $250.0 million. Borrowings under the Credit Agreement bear interest, at our option, at a rate per annum equal to the Alternate Base Rate or Adjusted LIBO Rate (each as defined in the Credit Agreement) plus an additional margin ranging between 0.25% and 2.00%. We are required to pay quarterly commitment fees ranging from 0.20% to 0.35% per annum of the average daily amount available under the Credit Agreement. The Credit Agreement also provides for the issuance of up to $45.0 million in letters of credit, provided that the sum of outstanding borrowings and letters of credit do not exceed the maximum funding commitment of $250.0 million. Under the terms of the Credit Agreement, we are required to maintain, as of the last day of each fiscal quarter, unrestricted cash of at least $400.0 million, including $200.0 million in accounts held with lenders under the Credit Agreement or their affiliates. The Credit Agreement also contains various other operating and financial covenants. See Note 9 "Revolving Credit Agreement" for additional information. No borrowings are currently outstanding under the Credit Agreement and we were in compliance with all covenants as of December 31, 2014.

Although we can provide no assurances, we believe that our available cash and cash equivalents balance and cash generated from operations should be sufficient to meet our working capital requirements and other capital expenditures for at least the next twelve months.

Uses of Cash

On January 2, 2014, we acquired Ticket Monster for total consideration of $259.4 million, consisting of $96.5 million in cash and $162.9 million of our Class A common stock. On January 13, 2014, we acquired all of the outstanding equity interests

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of Ideel for total cash consideration of $42.7 million. During 2014, we acquired four other businesses for total consideration of $32.9 million, including $17.4 million in cash. We intend to continue to acquire additional businesses and make strategic minority investments in complementary businesses in future periods to grow our customer base, expand our merchant relationships, enhance our technology capabilities and acquire experienced workforces.

In order to support our current and future global expansion, we expect to continue to make significant investments in our technology platforms and business processes, as well as internal tools aimed at improving the efficiency of our operations. We will also continue to invest in sales and marketing as we seek to grow both the number of active deals available through our online local marketplaces and the volume of transactions through those marketplaces.

The Board of Directors has authorized us to purchase up to $300.0 million of our outstanding Class A common stock through August 2015.  The timing and amount of any share repurchases will be determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time. Repurchases will be made in compliance with SEC rules and other legal requirements and may be made in part under a Rule 10b5-1 plan, which permits stock repurchases when the Company might otherwise be precluded from doing so. During the year endedDecember 31, 2014, we purchased 22.8 million shares of Class A common stock for an aggregate purchase price of $151.9 million (including fees and commissions) under the share repurchase program. As of December 31, 2014, up to $101.5 million of Class A common stock remains available for repurchase under the share repurchase program.

We currently plan to fund investments in business acquisitions, strategic minority investments, technology, and sales and marketing, as well as our share repurchase program, with our available cash and cash equivalents and cash flows generated from our operations. We also have the ability to borrow funds under the Credit Agreement, described above, although we have no immediate plans to do so. We may also seek to raise additional financing, if available on terms that we believe are favorable, to increase the amount of liquid funds that we can access for future acquisitions or other strategic investment opportunities.

Cash Flow

Our net cash flows from operating, investing and financing activities for the years ended December 31, 2014, 2013 and 2012 were as follows:

	Year Ended December 31,
	2014			2013			2012
	(in thousands)
Cash provided by (used in):
Operating activities	$	288,824		$	218,432		$	266,834
Investing activities	(229,456		)	(96,315		)	(194,979		)
Financing activities	(194,156		)	(81,697		)	12,095
Effect of changes in exchange rates on cash and cash equivalents	(33,771		)	(9,237		)	2,404
Net (decrease) increase in cash and cash equivalents	$	(168,559	)	$	31,183		$	86,354

Cash Provided by Operating Activities

Cash provided by operating activities primarily consists of our net loss adjusted for certain items, including depreciation and amortization, stock‑based compensation, deferred income taxes and the effect of changes in working capital and other items.

Our current merchant arrangements are structured as either a redemption payment model or a fixed payment model defined as follows:

Redemption payment model - We typically pay our merchants upon redemption for the majority of third party deals in our EMEA and Rest of World segments. Under our redemption merchant payment model, we collect payments at the time customers purchase Groupons and make payments to merchants at a subsequent date. Using this payment model, merchants are not paid until the customer redeems the Groupon that has been purchased. If a customer does not redeem the Groupon under this payment model, we retain all of the gross billings from the unredeemed Groupon. The redemption model generally improves our overall cash flow because we do not pay our merchants until the customer redeems the Groupon.

Fixed payment model - We typically pay our merchants under the fixed payment model for the majority of deals in North

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America. For third party revenue deals in which the merchant has a continuous presence on our websites and mobile applications by offering deals for an extended period of time, which currently represents a substantial majority of our third party revenue deals in North America, we remit payments to the merchant on an ongoing basis, generally bi-weekly, throughout the term of the offering. For direct revenue deals in our Goods category, payment terms with our suppliers across our three segments typically range from net 30 days to net 60 days. Under the fixed payment model, merchants are paid regardless of whether the Groupon is redeemed.

We experience fluctuations in accrued merchant and supplier payables associated with our normal revenue-generating activities, including both third party and direct revenue sales transactions, that can cause volatility in working capital levels and impact cash balances more or less than our operating income or loss would indicate. Revenue from our Goods category has grown rapidly in recent periods, both in absolute dollars and as a percentage of the Company's overall revenue. This category has lower margins than our Local category, primarily as a result of shipping and fulfillment costs on direct revenue transactions. As a result of those lower margins, the amount of cash that we ultimately retain from direct revenue transactions in our Goods category after paying the related inventory, shipping and fulfillment costs is less than the amount that we ultimately retain from third party revenue transactions in our Local category after paying the merchant's share. However, the impact of transactions in our Goods category on our operating cash flows varies from period to period. For example, the cash flows from transactions in that category are impacted by seasonality, with strong cash inflows typically generated during the fourth quarter holiday season followed by subsequent cash outflows when payments are made to suppliers of the merchandise.

For the year ended December 31, 2014, our net cash provided by operating activities was $288.8 million, which consisted of a $239.9 million net increase for certain non-cash items and a $112.8 million net increase related to changes in working capital and other assets and liabilities, partially offset by a $63.9 million net loss. The net increase in cash resulting from changes in working capital activities primarily consisted of a $115.1 million increase in accrued merchant and supplier payables, a $33.4 million net increase from other items, which includes $31.5 million of foreign currency transaction losses, primarily related to intercompany balances denominated in foreign currencies, and a $6.0 million decrease in restricted cash, partially offset by a $13.7 million increase in accounts receivable, an $11.9 million decrease in accounts payable and a $16.2 million decrease in accrued expenses and other current liabilities. The $115.1 million increase in accrued merchant and supplier payables was primarily due to the timing of payments to suppliers of merchandise and the seasonally high levels of Goods transactions in the fourth quarter of 2014. The net adjustments for certain non-cash items include $144.9 million of depreciation and amortization expense and $122.0 million of stock-based compensation expense, partially offset by $11.1 million of deferred income taxes and $16.0 million of excess tax benefits on stock-based compensation.

For the year ended December 31, 2013, our net cash provided by operating activities was $218.4 million, which consisted of a $255.2 million net increase for certain non-cash items and a $52.2 million net increase related to changes in working capital and other assets and liabilities, partially offset by an $88.9 million net loss. The net adjustments for certain non-cash items include $121.5 million of stock-based compensation expense, $89.4 million of depreciation and amortization expense and an $85.9 million impairment of our investments in F-tuan, partially offset by $20.5 million of excess tax benefits on stock-based compensation and $18.1 million of deferred income taxes. The net increase in cash resulting from changes in working capital activities primarily consisted of an $88.5 million increase in accrued merchant and supplier payables, an $11.0 million decrease in accounts receivable and a $40.7 million net increase from other items, including a $19.1 million increase in liabilities for uncertain tax positions and $10.3 million of foreign currency transaction losses, primarily related to intercompany balances denominated in foreign currencies, partially offset by a $62.9 million increase in prepaid expenses and other current assets and a $31.3 million decrease in accounts payable. The significant increase in merchant and supplier payables was primarily attributable to amounts owed to suppliers of merchandise inventory due to the seasonal increase in direct revenue in our Goods category during the holiday season.

For the year ended December 31, 2012, our net cash provided by operating activities was $266.8 million, which consisted of a $187.3 million net increase related to changes in working capital and other assets and liabilities and a $130.6 million net increase for certain non-cash items, partially offset by a $51.0 million net loss. The net increase in cash resulting from changes in working capital activities primarily consisted of a $149.9 million increase in merchant and supplier payables and a $47.7 million increase in accrued expenses and other current liabilities, due to the continued growth in the business. Liabilities included in accrued expenses and other current liabilities are primarily the reserve for customer refunds, accrued payroll and benefits, costs associated with customer credits and VAT and sales taxes payable. The net increase in accrued expenses and other current liabilities primarily reflect the significant increase in the number of employees, vendors, and customers resulting from our internal growth and global expansion. The net increase in cash resulting from changes in working capital activities also included an $18.7 million increase in accounts payable due to general business growth, partially offset by a $70.9 million increase in prepaid expenses and other current assets as a result of business growth and increases in inventory relating to our Goods category. The net adjustments for certain non-cash items include $104.1 million of stock-based compensation expense, $55.8 million of depreciation and amortization expense and $50.6 million for the impairment of the F-tuan investment, partially offset by $56.0 million for the gain recognized on the E-Commerce transaction.

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Cash Used in Investing Activities

Cash used in investing activities primarily consists of capital expenditures, acquisitions of businesses and minority investments.

For the year ended December 31, 2014, our net cash used in investing activities of $229.5 million consisted of $131.5 million in net cash paid for acquisitions as described in Note 3, "Business Combinations," $88.3 million in capital expenditures, including capitalized internally-developed software, $6.9 million in purchases of investments, $2.3 million related to the settlement of liabilities from purchasers of additional interests in consolidated subsidiaries and $0.5 million in purchases of intangible assets.

For the year ended December 31, 2013, our net cash used in investing activities of $96.3 million consisted of $63.5 million in capital expenditures, including capitalized internally-developed software, $22.0 million in purchases of investments, $7.3 million in net cash paid for acquisitions, $2.0 million related to the settlement of the liability related to the purchase of an additional interest in a consolidated subsidiary and $1.5 million in purchases of intangible assets.

For the year ended December 31, 2012, our net cash used in investing activities of $195.0 million primarily consisted of $95.8 million in capital expenditures, including capitalized internally-developed software, $51.7 million invested in subsidiaries and minority investments and $46.9 million in net cash paid for business acquisitions.

Cash Used in Financing Activities

For the year ended December 31, 2014, our net cash used in financing activities of $194.2 million was driven primarily by purchases of treasury stock under our share repurchase program of $153.3 million and taxes paid related to net share settlements of stock-based compensation awards of $43.6 million. Our net cash used in financing activities was also due to partnership distributions to noncontrolling interest holders of $8.0 million, payments of capital lease obligations of $7.4 million, settlements of purchase price obligations related to acquisitions of $3.1 million and debt issuance costs of $1.0 million, partially offset by $16.0 million of excess tax benefits related to stock-based compensation and $6.5 million of proceeds from stock option exercises and our employee stock purchase plan.

For the year ended December 31, 2013, our net cash used in financing activities of $81.7 million was driven primarily by taxes paid related to net share settlements of stock-based compensation awards of $47.6 million. We also paid $44.8 million for purchases of treasury stock under our share repurchase program. Our net cash used in financing activities was also due to partnership distributions to noncontrolling interest holders of $6.1 million, settlements of purchase price obligations related to acquisitions of $5.0 million and payments of capital lease obligations of $1.6 million, partially offset by $20.5 million of excess tax benefits related to stock-based compensation and $7.3 million of proceeds from stock option exercises and our employee stock purchase plan.

For the year ended December 31, 2012, our net cash provided by financing activities of $12.1 million was driven primarily by $27.0 million of excess tax benefits related to stock-based compensation, partially offset by tax withholdings related to net share settlements of stock-based compensation awards of $13.0 million.

Free Cash Flow

Free cash flow, a non-GAAP financial measure, was $200.5 million, $154.9 million and $171.0 million for the years ended December 31, 2014, 2013 and 2012, respectively.  The increase in free cash flow for the year ended December 31, 2014, as compared to the prior year, was due to the $70.4 million increase in our operating cash flow, partially offset by higher capital expenditures.  The decrease in free cash flow for the year ended December 31, 2013, as compared to the prior year, was primarily due to the $48.4 million decrease in our operating cash flow, partially offset by lower capital expenditures. For further information and a reconciliation to the most applicable financial measure under U.S. GAAP, refer to our discussion under "Non-GAAP Financial Measures" above.  

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Contractual Obligations and Commitments

The following table summarizes our future contractual obligations and commitments as of December 31, 2014. The table below excludes $82.1 million of non-current liabilities for unrecognized tax benefits, including interest and penalties, as of December 31, 2014. We cannot make a reasonable estimate of the period of cash settlement for the tax positions classified as non-current liabilities.

	Payments due by period
	Total		2015		2016		2017		2018		2019		Thereafter
	(in thousands)
Capital lease obligations(1)	$	39,715	$	14,936	$	14,136	$	9,424	$	697	$	522	$	—
Operating lease obligations(2)	202,126		53,776		49,094		38,628		27,659		11,455		21,514
Purchase obligations(3)	61,300		33,636		21,922		5,730		8		4		—
Total	$	303,141	$	102,348	$	85,152	$	53,782	$	28,364	$	11,981	$	21,514

(1) Capital lease obligations include both principal and interest components of future minimum capital lease payments.

(2) Operating lease obligations are primarily for office facilities and are non-cancelable. Certain leases contain periodic rent escalation adjustments and renewal and expansion options. Operating lease obligations expire at various dates with the latest maturity in 2024.

(3) Purchase obligations primarily represent non-cancelable contractual obligations related to information technology products and services.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of December 31, 2014.

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Critical Accounting Policies and Estimates

Management's Discussion and Analysis of Financial Condition and Results of Operations is based upon our consolidated financial statements, which have been prepared in accordance with U.S. GAAP. Our significant accounting policies are discussed in Note 2 "Summary of Significant Accounting Policies" in the notes to the consolidated financial statements.

    The preparation of consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and related disclosure of contingent liabilities. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, and if different estimates that reasonably could have been used, or changes in the accounting estimates that are reasonably likely to occur periodically, could materially impact the consolidated financial statements. Management believes its critical accounting policies that reflect its more significant estimates and assumptions are policies related to revenue recognition, refunds, goodwill and long-lived assets, income taxes and other-than-temporary impairments.

Revenue Recognition

We recognize revenue when the following criteria are met: persuasive evidence of an arrangement exists; delivery has occurred; the selling price is fixed or determinable; and collection is reasonably assured.

Third party revenue recognition

We generate third party revenue, where we act as the third party marketing agent, by offering goods and services provided by third party merchants at a discount through our online local commerce marketplaces that connect merchants to consumers. Our marketplaces include deals offered in three primary categories: Local, Goods and Travel. Customers purchase the discount vouchers ("Groupons") from us and redeem them with merchants.     

The revenue recognition criteria are met when the customer purchases a deal, the Groupon has been electronically delivered to the purchaser and a listing of Groupons sold has been made available to the merchant. At that time, our obligations to the merchant, for which we are serving as a marketing agent, are substantially complete. Our remaining obligations, which are limited to remitting payment to the merchant and continuing to make available on our website information about Groupons sold that was previously provided to the merchant, are inconsequential or perfunctory. For a portion of the hotel deals offered through our online local marketplaces, we facilitate the booking of rooms by taking reservations through our websites. Such reservations are generally cancelable at any time prior to check-in and we defer the revenue on those deals until the customer's stay occurs.

We record as revenue the net amount we retain from the sale of Groupons after deducting the portion of the purchase price that is payable to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Revenue is presented on a net basis because we are acting as a marketing agent of the merchant in the transaction.

For merchant payment arrangements that are structured under a redemption model, merchants are not paid until the customer redeems the Groupon that has been purchased. If a customer does not redeem the Groupon under this payment model, we retain all the gross billings. We recognize incremental revenue from unredeemed Groupons and derecognize the related accrued merchant payable when our legal obligation to the merchant expires, which we believe is shortly after deal expiration in most jurisdictions that have payment arrangements structured under a redemption model.

Direct revenue recognition

We evaluate whether it is appropriate to record the gross amount of our sales and related costs by considering a number of factors, including, among other things, whether we are the primary obligor under the arrangement, have inventory risk and have latitude in establishing prices.

Direct revenue is derived primarily from selling consumer products through our Goods category where we are the merchant of record. We are the primary obligor in these transactions, are subject to general inventory risk and have latitude in establishing

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prices. Accordingly, direct revenue is presented on a gross basis, excluding applicable taxes and net of estimated refunds. For purposes of evaluating whether product revenue should be recognized on a gross basis, unmitigated general inventory risk is a strong indicator of whether a seller has the risks and rewards of a principal to the sale transaction. U.S. GAAP specifies that general inventory risk exists if a seller either takes title to a product before that product is ordered by a customer (that is, maintains the product in inventory) or will take title to the product if it is returned by the customer (that is, back-end inventory risk) and the customer has a right of return. We have unmitigated general inventory risk on our direct revenue transactions. Currently, that general inventory risk is primarily in the form of back-end inventory risk. However, in future periods we may increase the levels of inventory on hand for our Goods category. For Goods transactions where we are performing a service by acting as a marketing agent of the merchant, revenue is recorded on a net basis and is presented within third party revenue.

Direct revenue, including associated shipping revenue, is recognized when title passes to the customer upon delivery of the product.

Refunds

We estimate future refunds utilizing a statistical model that incorporates the following data inputs and factors: historical refund experience developed from millions of deals featured on our websites and mobile applications, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in our practices in response to refund experience or economic trends that might impact customer demand. The portion of customer refunds for which the merchant's share is not recoverable on third party revenue deals is estimated based on the refunds that are expected to be issued after expiration of the related vouchers, the refunds that are expected to be issued due to the merchant bankruptcy or poor customer experience, and whether the payment terms of the related merchant contracts are structured using a redemption payment model or a fixed payment model.

We accrue costs associated with refunds within "Accrued expenses" on the consolidated balance sheets. The cost of refunds for third party revenue where the amounts payable to the merchant are recoverable and for all direct revenue is presented on the consolidated statements of operations as a reduction to revenue. The cost of refunds for third party revenue for which the merchant's share is not recoverable is presented as a cost of revenue.

We assess the trends that could affect our estimates on an ongoing basis and make adjustments to the refund reserve calculations if it appears that changes in circumstances, including changes to the Company's refund policies, may cause future refunds to differ from our original estimates. If actual results are not consistent with the estimates or assumptions stated above, we may need to change our future estimates, and the effects could be material to the consolidated financial statements.

Impairment Assessments of Goodwill and Long-Lived Assets

A component of our growth strategy has been to acquire and integrate businesses that complement our existing operations. We account for business combinations using the acquisition method and allocate the acquisition price of acquired companies to the tangible and intangible assets acquired and liabilities assumed based upon their estimated fair values at the acquisition date. The difference between the acquisition price and the fair value of the net assets acquired is recorded as goodwill.

In determining the fair value of assets acquired and liabilities assumed in business combinations and for determining fair values in impairment tests, we use one of the following recognized valuation methods: the income approach (including discounted cash flows), the market approach and the cost approach. Our significant estimates in those fair value measurements include identifying business factors such as size, growth, profitability, risk and return on investment and assessing comparable revenue and earnings multiples. Further, when measuring fair value based on discounted cash flows, we make assumptions about risk-adjusted discount rates, future price levels, rates of increase in revenue, cost of revenue, and operating expenses, weighted average cost of capital, rates of long-term growth, and income tax rates. Valuations are performed by management or third party valuation specialists under management's supervision, where appropriate. We believe that the estimated fair values assigned to the assets acquired and liabilities assumed and for determining fair value in business combinations and impairment tests are based on reasonable assumptions that marketplace participants would use. However, such assumptions are inherently uncertain and actual results could differ from those estimates.

Goodwill is allocated to our reporting units at the date the goodwill is initially recorded. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill.

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We evaluate goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. We have the option to assess goodwill for impairment by first performing a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount. If we determine that it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then the two-step goodwill impairment test is not required to be performed. If we determine that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, or if we do not elect the option to perform an initial qualitative assessment, we perform the two-step goodwill impairment test. In the first step, the fair value of the reporting unit is compared to its book value including goodwill. If the fair value of the reporting unit is in excess of its book value, the related goodwill is not impaired and no further analysis is necessary. If the fair value of the reporting unit is less than its book value, there is an indication of potential impairment and a second step is performed. When required, the second step of testing involves calculating the implied fair value of goodwill for the reporting unit. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets and identifiable intangible assets as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. For reporting units with a negative book value (i.e., excess of liabilities over assets), we evaluate qualitative factors to determine whether it is necessary to perform the second step of the goodwill impairment test. As of December 31, 2014, our market capitalization of $5.6 billion substantially exceeded our consolidated net book value of $764.9 million.

Our seven reporting units as of October 1, 2014 were North America, Southern EMEA, Western EMEA, Northern EMEA, Eastern/Central EMEA, Asia Pacific and Latin America. As of the October 1, 2014 testing date, liabilities exceeded assets for the Western EMEA reporting unit. For reporting units with a negative book value (i.e., excess of liabilities over assets), qualitative factors are evaluated to determine whether it is necessary to perform the second step of the goodwill impairment test. Based on that evaluation, which included consideration of the significant growth of the businesses and improvement in its operating performance since it was acquired in May 2010, we determined that the likelihood of a goodwill impairment for the Western EMEA reporting unit did not reach the more-likely-than-not threshold specified in U.S. GAAP. Accordingly, we concluded that the goodwill relating to the Western EMEA reporting unit was not impaired as of October 1, 2014, and step two of the goodwill impairment test was not required to be performed. For all other reporting units, there was no impairment of goodwill because the fair values of those reporting units exceeded their carrying values.

Long‑lived assets, such as property, equipment and software, net and intangible assets, net, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. If circumstances require that a long‑lived asset or asset group be tested for possible impairment, we first compare the undiscounted cash flows expected to be generated by that long-lived asset or asset group to its carrying amount. If the carrying amount of the long‑lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair value.

Future changes in our assumptions or the interrelationship of those assumptions may negatively impact future valuations. In future measurements of fair value, adverse changes in assumptions could result in an impairment of goodwill or long-lived assets that would require a non-cash charge to the consolidated statements of operations and may have a material effect on our financial condition and operating results.

Income Taxes

We account for income taxes using the asset and liability method, under which deferred income tax assets and liabilities are recognized based upon anticipated future tax consequences attributable to differences between the financial statement carrying values of assets and liabilities and their respective tax bases. We regularly review deferred tax assets to assess whether it is more-likely-than-not that the deferred tax assets will be realized and, if necessary, establish a valuation allowance for portions of such assets to reduce the carrying value.

For purposes of assessing whether it is more-likely-than-not that our deferred tax assets will be realized, we consider the following four sources of taxable income for each tax jurisdiction: (a) future reversals of existing taxable temporary differences, (b) projected future earnings, (c) taxable income in carryback years, to the extent that carrybacks are permitted under the tax laws of the applicable jurisdiction, and (d) tax planning strategies, which represent prudent and feasible actions that a company ordinarily might not take, but would take to prevent an operating loss or tax credit carryforward from expiring unused. To the extent that evidence about one or more of these sources of taxable income is sufficient to support a conclusion that a valuation allowance is not necessary, other sources need not be considered. Otherwise, evidence about each of the sources of taxable income is considered in arriving at a conclusion about the need for and amount of a valuation allowance. We have incurred significant losses in recent years and had accumulated deficits of $922.0 million and $848.9 million as of December 31, 2014 and 2013, respectively. A cumulative loss in the most recent three-year period is a significant piece of negative evidence that is difficult to overcome when

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assessing the realizability of deferred tax assets. We have only recognized deferred tax assets to the extent that they will be realizable either through future reversals of existing taxable temporary differences, through taxable income in carryback years for the applicable jurisdictions or based on projections of future income for those jurisdictions in a cumulative income position for the most recent three-year period. Due to our cumulative losses in many jurisdictions outside of the United States, we have recognized valuation allowances against deferred tax assets that are not supported by objective sources of taxable income. As of December 31, 2014, we have not recognized significant deferred tax assets without a valuation allowance outside of the United States when the only sources of taxable income are projected future earnings or tax planning strategies. For certain jurisdictions where applicable tax law imposes limitations that may prevent us from realizing our deferred tax assets through the scheduled reversal of taxable temporary differences, we have recorded valuation allowances in excess of the net deferred tax asset balances. During the fourth quarter of 2013, earnings in the United States moved to a cumulative income position for the most recent three-year period and we released a portion of the valuation allowance against our federal and state deferred tax assets, resulting in a $9.6 million reduction to income tax expense. We continue to maintain a valuation allowance in the United States against a portion of our acquired domestic federal net operating losses that are subject to limitations under the tax law and state net operating loss carryforwards and tax credits that are not expected to be realized.

We are subject to taxation in the United States, various state and foreign jurisdictions. Significant judgment is required in determining the worldwide provision for income taxes and recording the related income tax assets and liabilities. During the ordinary course of business, there are many transactions and calculations for which the ultimate tax determination is uncertain. For example, our effective tax rate could be adversely affected by earnings being lower than anticipated in countries where we have lower statutory rates and higher than anticipated in countries where we have higher statutory rates, by changes in foreign currency exchange rates, by changes in the valuation of our deferred tax assets and liabilities, or by changes in the relevant tax, accounting and other laws, regulations, principles and interpretations. Our practice for accounting for uncertainty in income taxes is to recognize the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not criteria, the amount recognized in the consolidated financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate settlement with the relevant tax authority.

We are subject to audit in various jurisdictions, and such jurisdictions may assess additional income tax against us. Although we believe our tax estimates are reasonable, the final determination of any tax audits and any related litigation could be materially different from income tax provision accruals and, therefore, could materially affect our operating results or cash flows in the period(s) in which that determination is made.

Other-than-Temporary Impairment of Investments

An unrealized loss exists when the current fair value of an investment is less than its amortized cost basis. We conduct reviews of all of our investments with unrealized losses on a quarterly basis to evaluate whether those impairments are other-than-temporary. This evaluation, which is performed at the individual investment level, considers qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as our intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Evidence considered in this evaluation includes the amount of the impairment, the length of time that the investment has been impaired, the factors contributing to the impairment, the financial condition and near-term prospects of the investee, recent operating trends and forecasted performance of the investee, market conditions in the geographic area or industry in which the investee operates, and our strategic plans for holding the investment in relation to the period of time expected for an anticipated recovery in value. Additionally, we consider whether we intend to sell the investment or whether it is more likely than not that we will be required to sell the investment before recovery of its amortized cost basis. Investments with unrealized losses that are determined to be other-than-temporary are written down to fair value with a charge to earnings. Unrealized losses that are determined to be temporary in nature are not recorded for cost method investments and equity method investments, while such losses are recorded, net of tax, in accumulated other comprehensive income (loss) for available-for-sale securities.

For the year ended December 31, 2014, we recorded $2.0 million of other-than-temporary impairments, including a $1.3 million impairment of an investment in convertible debt securities, which are reported within "Other expense, net" on the consolidated statements of operations.

For the year ended December 31, 2013, we recorded an $85.5 million other-than-temporary impairment of our investments in F-tuan. F-tuan has operated at a loss since its inception and has used proceeds from equity offerings to fund investments in marketing and other initiatives to grow its business. We participated in an equity funding round in 2013 and the aggregate cash proceeds raised by F-tuan in that round, which were funded in two installments in September and October 2013 and included proceeds received from another investor, were intended to fund its operations for approximately six months, at which time additional financing would be required. In December 2013, we were notified by F-tuan’s largest shareholder, which had served as a source

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of funding and operational support, that they had made a strategic decision to cease providing support to F-tuan. At its December 12, 2013 meeting, our Board of Directors discussed our strategy with respect to the Chinese market in light of this information. After that meeting, management pursued opportunities to divest its minority investment in F-tuan either for cash or in exchange for a minority equity investment in a larger competitor, but no agreement was ultimately reached. At its February 11, 2014 meeting, our Board of Directors determined that we should not provide funding to F-tuan in future periods. At that time, F-tuan required additional financing to continue its operations. Given the uncertainty as to whether it will be able to obtain such financing and our decision not to provide significant funding ourselves, we concluded that there was substantial doubt as to F-tuan’s ability to operate as a going concern for the foreseeable future.

Our evaluation of other-than-temporary impairments involves consideration of qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as our intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. As a result of F-tuan’s liquidity needs, the decision by existing shareholders to cease providing support, our inability to find a buyer for our minority investment, our decision not to be a source of significant funding and the expectation that any subsequent third party investment, if one occurs, would substantially dilute the existing shareholders, we concluded that our investment in F-tuan is other-than-temporarily impaired and our best estimate of fair value at the present time is zero. Accordingly, we recognized an $85.5 million impairment charge in earnings for the year ended December 31, 2013. Our investments in F-tuan continue to have an estimated fair value of zero as of December 31, 2014.

For the year ended December 31, 2012, we recorded a $50.6 million other-than-temporary impairment of our investments in F-tuan. We obtained these investments in June 2012 as part of a transaction in which we received a 19% interest in F-tuan, in the form of common and Series E preferred shares, in exchange for our 49.8% interest in E-Commerce and an additional $25.0 million of cash consideration. We recognized a $56.0 million non-operating gain as a result of this transaction, which represented the excess of the acquisition-date fair value of the 19% interest in F-tuan that we acquired over the carrying value of our investment in E-Commerce and the $25.0 million of cash consideration. The $128.1 million acquisition-date fair value of our investments in F-tuan, a nonpublic entity, was determined using the discounted cash flow method, which is an income approach, and the resulting value was corroborated using the market approach. The inputs used to estimate fair value under the discounted cash flow method included financial projections and the discount rate. Because these fair value inputs are unobservable, fair value measurements of our investments in F-tuan are classified within Level 3 of the fair value hierarchy.

In connection with the acquisition-date fair value measurement of F-tuan, we obtained financial projections from the investee. We evaluated those financial projections based on our knowledge of the business and related market conditions. As a result of our evaluations, downward adjustments were applied to reduce the anticipated growth that was reflected in the original projections. We applied a 25% discount rate to the adjusted cash flow projections, which included an entity-specific risk premium to account for the riskiness and uncertainty inherent in the business. Additionally, we corroborated the acquisition-date fair value measurement of F-tuan by estimating the fair value of our 49.8% interest in E-Commerce at the time of the transaction and comparing the estimated fair value of the consideration we transferred, including the additional $25.0 million of cash consideration, to the estimated fair value of the investments in F-tuan that we obtained.

In January 2013, we obtained updated financial projections from the investee, as well as their operating results for the year ended December 31, 2012. The investee's operating loss for the year-ended December 31, 2012 was lower than the loss that was forecasted in June 2012 at the time of our investment, primarily due to lower-than-forecasted operating expenses. However, actual 2012 revenues were lower than the adjusted financial projections used at the time of our investments and the updated financial projections provided by the investee at year-end indicated significant declines in forecasted revenues in future years as compared to the adjusted financial projections used at the time of our investments due to reduced gross billings and deal margin forecasts. As of December 31, 2012, we continued to apply a discounted cash flow approach, corroborated by a market approach, to estimate the fair value of our investments in F-tuan. For the December 31, 2012 fair value measurement, we used the updated financial projections and a discount rate of 30%. The increase to the discount rate as compared to the acquisition-date fair value measurement was primarily attributable to an increase in the entity-specific risk premium to reflect our current assessment of the riskiness of these investments. The resulting fair value measurement of our investments in F-tuan was $77.5 million as of December 31, 2012, a $50.6 million reduction from the $128.1 million acquisition-date fair value measurement in June 2012.

Although our investments in F-tuan had not been in an unrealized loss position for an extended period of time as of December 31, 2012 and there were no plans to dispose of the investments at that time, we concluded that the impairment was other-than-temporary due to the significant declines in forecasted revenue growth and the severity of the unrealized loss.

The $85.5 million and $50.6 million other-than-temporary impairments of our investments in F-tuan are reported within "Other expense, net" on the consolidated statements of operations for the years ended December 31, 2013 and 2012, respectively.

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We also recorded an additional $1.2 million other-than-temporary impairment of an equity method investment in a nonpublic entity, which is reported within "Other expense, net" on the consolidated statement of operations for the year ended December 31, 2012.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers. This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The ASU is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. Management is still assessing the impact of adoption on its consolidated financial statements.

There are no additional accounting standards that have been issued but not yet adopted that we believe will have a material impact on our consolidated financial position or results of operations.

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We have operations both within the United States and internationally, and we are exposed to market risks in the ordinary course of our business, including the effect of foreign currency fluctuations, interest rate changes and inflation. Information relating to quantitative and qualitative disclosures about these market risks is set forth below.

Foreign Currency Exchange Risk

We transact business in various foreign currencies other than the U.S. dollar, principally the Euro, Korean won, British pound sterling, Japanese yen, Swiss Franc and Brazilian real, which exposes us to foreign currency risk. For the year endedDecember 31, 2014, we derived approximately 30.1% and 12.7% of our revenue from our EMEA and Rest of World segments, respectively. Revenue and related expenses generated from our international operations are generally denominated in the local currencies of the corresponding countries. The functional currency of our subsidiaries that either operate or support these markets is generally the same as the corresponding local currency. The results of operations of, and certain of our intercompany balances associated with, our international operations are exposed to foreign exchange rate fluctuations. Upon consolidation, as exchange rates vary, our revenue and other operating results may differ materially from expectations, and we may record significant gains or losses on the re-measurement of intercompany balances.

We assess our foreign currency exchange risk based on hypothetical changes in rates utilizing a sensitivity analysis that measures the potential impact on working capital based on a 10% change (increase and decrease) in currency rates. We use a current market pricing model to assess the changes in the value of the U.S. dollar on foreign currency denominated monetary assets and liabilities. The primary assumption used in this model is a hypothetical 10% weakening or strengthening of the U.S. dollar against those currency exposures as of December 31, 2014 and December 31, 2013.    

As of December 31, 2014, our net working capital deficit (defined as current assets less current liabilities) from subsidiaries that are subject to foreign currency translation risk was $156.5 million. The potential increase in this working capital deficit from a hypothetical 10% adverse change in quoted foreign currency exchange rates would be $15.7 million. This compares to a $168.2 million working capital deficit subject to foreign currency exposure as of December 31, 2013, for which a 10% adverse change would have resulted in a potential increase in this working capital deficit of $16.8 million.

Interest Rate Risk

Our cash and cash equivalents primarily consist of cash and money market funds. Our exposure to market risk for changes in interest rates is limited because our cash and cash equivalents have a short-term maturity and are used primarily for working capital purposes. In August 2014, the Company entered into a three-year Credit Agreement that provides for aggregate principal borrowings up to $250.0 million. As of December 31, 2014, there were no borrowings outstanding under the Credit Agreement. Because our Credit Agreement bears interest at a variable rate, we will be exposed to market risk relating to changes in interest rates if we draw down under the Credit Agreement. We also have long-term borrowings, which consist of $23.4 million of long-term capital lease obligations, and investments in convertible debt securities issued by nonpublic entities that are classified as available-for-sale. We believe that the interest rate risk on the long-term capital lease obligations and investments is not significant.

Impact of Inflation

We believe that our results of operations are not materially impacted by moderate changes in the inflation rate. Inflation and changing prices did not have a material effect on our business, financial condition or results of operations for the year ended December 31, 2014.

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ITEM 8: FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Table of Contents

Groupon, Inc.

Consolidated Financial Statements

As of December 31, 2014 and 2013 and for the Years Ended December 31, 2014, 2013 and 2012

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Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of Groupon, Inc.

We have audited the accompanying consolidated balance sheets of Groupon, Inc. as of December 31, 2014 and 2013, and the related consolidated statements of operations, comprehensive loss, stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2014. Our audits also included the financial statement schedule listed in Item 15(2). These financial statements and schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Groupon, Inc. at December 31, 2014 and 2013, and the consolidated results of its operations, and its cash flows for each of the three years in the period ended December 31, 2014, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule when considered in relation to the basic consolidated financial statements taken as a whole, presents fairly in all material respects the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Groupon, Inc.'s internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 12, 2015 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Chicago, Illinois

February 12, 2015

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GROUPON, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share amounts)

	December 31,
	2014			2013
Assets
Current assets:
Cash and cash equivalents	$	1,071,913		$	1,240,472
Accounts receivable, net	105,154			83,673
Deferred income taxes	16,271			27,938
Prepaid expenses and other current assets	207,991			210,415
Total current assets	1,401,329			1,562,498
Property, equipment and software, net	182,475			134,423
Goodwill	447,810			220,827
Intangible assets, net	110,557			28,443
Investments	24,298			20,652
Deferred income taxes, non-current	41,835			35,941
Other non-current assets	19,293			39,226
Total Assets	$	2,227,597		$	2,042,010
Liabilities and Equity
Current liabilities:
Accounts payable	$	21,855		$	27,573
Accrued merchant and supplier payables	910,567			752,943
Accrued expenses	230,352			226,986
Deferred income taxes	32,510			47,558
Other current liabilities	130,312			132,718
Total current liabilities	1,325,596			1,187,778
Deferred income taxes, non-current	773			10,853
Other non-current liabilities	136,284			131,697
Total Liabilities	1,462,653			1,330,328
Commitments and contingencies (see Note 8)
Stockholders' Equity
Class A common stock, par value $0.0001 per share, 2,000,000,000 shares authorized, 699,008,084 shares issued and 671,768,980 shares outstanding at December 31, 2014 and 670,149,976 shares issued and 665,717,176 shares outstanding at December 31, 2013	70			67
Class B common stock, par value $0.0001 per share, 10,000,000 shares authorized, 2,399,976 shares issued and outstanding at December 31, 2014 and December 31, 2013	—			—
Common stock, par value $0.0001 per share, 2,010,000,000 shares authorized, no shares issued and outstanding at December 31, 2014 and December 31, 2013	—			—
Additional paid-in capital	1,847,420			1,584,211
Treasury stock, at cost, 27,239,104 shares at December 31, 2014 and 4,432,800 shares at December 31, 2013	(198,467		)	(46,587		)
Accumulated deficit	(921,960		)	(848,870		)
Accumulated other comprehensive income	35,763			24,830
Total Groupon, Inc. Stockholders' Equity	762,826			713,651
Noncontrolling interests	2,118			(1,969		)
Total Equity	764,944			711,682
Total Liabilities and Equity	$	2,227,597		$	2,042,010

See Notes to Consolidated Financial Statements.

83

GROUPON, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except share and per share amounts)

	Year Ended December 31,
	2014			2013			2012
Revenue:
Third party and other	$	1,627,539		$	1,654,654		$	1,879,729
Direct	1,564,149			919,001			454,743
Total revenue	3,191,688			2,573,655			2,334,472
Cost of revenue:
Third party and other	241,885			232,062			297,739
Direct	1,400,617			840,060			421,201
Total cost of revenue	1,642,502			1,072,122			718,940
Gross profit	1,549,186			1,501,533			1,615,532
Operating expenses:
Marketing	269,043			214,824			336,854
Selling, general and administrative	1,293,716			1,210,966			1,179,080
Acquisition-related expense (benefit), net	1,269			(11		)	897
Total operating expenses	1,564,028			1,425,779			1,516,831
(Loss) income from operations	(14,842		)	75,754			98,701
Other expense, net	(33,353		)	(94,663		)	(3,759		)
(Loss) income before provision for income taxes	(48,195		)	(18,909		)	94,942
Provision for income taxes	15,724			70,037			145,973
Net loss	(63,919		)	(88,946		)	(51,031		)
Net income attributable to noncontrolling interests	(9,171		)	(6,447		)	(3,742		)
Net loss attributable to Groupon, Inc.	(73,090		)	(95,393		)	(54,773		)
Adjustment of redeemable noncontrolling interests to redemption value	—			—			(12,604		)
Net loss attributable to common stockholders	$	(73,090	)	$	(95,393	)	$	(67,377	)
Net loss per share
Basic	$(0.11)			$(0.14)			$(0.10)
Diluted	$(0.11)			$(0.14)			$(0.10)
Weighted average number of shares outstanding
Basic	674,832,393			663,910,194			650,214,119
Diluted	674,832,393			663,910,194			650,214,119

See Notes to Consolidated Financial Statements.

84

GROUPON, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(in thousands)

	Year Ended December 31,
	2014			2013			2012
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)
Other comprehensive income (loss):
Foreign currency translation adjustments	11,625			12,933			425
Pension liability adjustment (net of tax effect of $285 for the year ended December 31, 2014)	(1,500		)	—			—
Available-for-sale securities:
Net unrealized (loss) gain during the period	(210		)	(175		)	53
Reclassification adjustment for impairment included in net loss	831			—			—
Net change in unrealized gain (loss) (net of tax effects of $383, $(108) and $34 for the years ended December 31, 2014, 2013 and 2012, respectively)	621			(175		)	53
Other comprehensive income	10,746			12,758			478
Comprehensive loss	(53,173		)	(76,188		)	(50,553		)
Comprehensive income attributable to noncontrolling interests	(8,984		)	(6,821		)	(4,702		)
Comprehensive loss attributable to Groupon, Inc.	$	(62,157	)	$	(83,009	)	$	(55,255	)

See Notes to Consolidated Financial Statements.

85

GROUPON, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(in thousands, except share amounts)

	Groupon, Inc. Stockholders' Equity
	Common Stock				Additional Paid-In Capital			Treasury Stock			Accumulated Deficit			Accumulated Other Comprehensive Income			Total Groupon Inc. Stockholders' Equity			Non-controlling Interests					Total Equity
	Shares		Amount					Shares	Amount
Balance at December 31, 2011	644,145,201		$	64	$	1,388,253		—	$	—	$	(698,704	)	$	12,928		$	702,541		$	(3,074	)			$	699,467
Net loss	—		—		—			—	—		(54,773		)	—			(54,773		)	3,748			(1	)	(51,025		)
Foreign currency translation	—		—		—			—	—		—			(535		)	(535		)	960					425
Unrealized gain on available-for-sale securities, net of tax	—		—		—			—	—		—			53			53			—					53
Adjustment of redeemable noncontrolling interest to redemption value	—		—		(12,604		)	—	—		—			—			(12,604		)	—					(12,604		)
Restricted stock issued to employees in connection with acquisitions	152,446		—		—			—	—		—			—			—			—					—
Purchases of additional interests in consolidated subsidiaries	51,000		—		(2,584		)	—	—		—			—			(2,584		)	739					(1,845		)
Shares issued to settle liability-classified awards and contingent consideration	660,539		—		2,503			—	—		—			—			2,503			—					2,503
Exercise of stock options	9,025,164		1		9,312			—	—		—			—			9,313			—					9,313
Vesting of restricted stock units	4,452,979		—		—			—	—		—			—			—			—					—
Tax withholdings related to net share settlements of stock-based compensation awards	(1,563,647	)	—		(14,918		)	—	—		—			—			(14,918		)	—					(14,918		)
Stock-based compensation on equity-classified awards	—		—		93,781			—	—		—			—			93,781			—					93,781
Excess tax benefits, net of shortfalls, on stock-based compensation awards	—		—		21,263			—	—		—			—			21,263			—					21,263
Partnership distributions to noncontrolling interest holders	—		—		—			—	—		—			—			—			(4,312		)			(4,312		)
Balance at December 31, 2012	656,923,682		$	65	$	1,485,006		—	$	—	$	(753,477	)	$	12,446		$	744,040		$	(1,939	)			$	742,101
Net loss	—		—		—			—	—		(95,393		)	—			(95,393		)	6,447					(88,946		)
Foreign currency translation	—		—		—			—	—		—			12,559			12,559			374					12,933
Unrealized loss on available-for-sale securities, net of tax	—		—		—			—	—		—			(175		)	(175		)	—					(175		)
Common stock issued in connection with acquisition of business, net of issuance costs	276,217		—		3,051			—	—		—			—			3,051			—					3,051
Shares issued to settle liability-classified awards and contingent consideration	758,474		—		4,649			—	—		—			—			4,649			—					4,649
Exercise of stock options	4,003,544		—		4,062			—	—		—			—			4,062			—					4,062
Vesting of restricted stock units	15,565,805		2		(2		)	—	—		—			—			—			—					—
Shares issued under employee stock purchase plan	774,288		—		3,241			—	—		—			—			3,241			—					3,241
Tax withholdings related to net share settlements of stock-based compensation awards	(5,752,058	)	—		(47,684		)	—	—		—			—			(47,684		)	—					(47,684		)
Stock-based compensation on equity-classified awards	—		—		122,222			—	—		—			—			122,222			—					122,222

86

Excess tax benefits, net of shortfalls, on stock-based compensation awards	—		—		9,666			—		—			—			—			9,666			—			9,666
Purchases of treasury stock	—		—		—			(4,432,800	)	(46,587		)	—			—			(46,587		)	—			(46,587		)
Partnership distributions to noncontrolling interest holders	—		—		—			—		—			—			—			—			(6,851		)	(6,851		)
Balance at December 31, 2013	672,549,952		$	67	$	1,584,211		(4,432,800	)	$	(46,587	)	$	(848,870	)	$	24,830		$	713,651		$	(1,969	)	$	711,682
Net loss	—		—		—			—		—			(73,090		)	—			(73,090		)	9,171			(63,919		)
Foreign currency translation	—		—		—			—		—			—			11,812			11,812			(187		)	11,625
Pension liability adjustment, net of tax	—		—		—			—		—			—			(1,500		)	(1,500		)	—			(1,500		)
Unrealized gain on available-for-sale securities, net of tax	—		—		—			—		—			—			621			621			—			621
Common stock issued in connection with acquisitions of businesses, net of issuance costs	15,255,180		2		173,813			—		—			—			—			173,815			—			173,815
Shares issued to settle liability-classified awards and contingent consideration	102,180		—		1,041			—		—			—			—			1,041			—			1,041
Purchase of interests in consolidated subsidiaries	—		—		(6,310		)	—		—			—			—			(6,310		)	2,415			(3,895		)
Exercise of stock options	1,029,471		—		1,118			—		—			—			—			1,118			—			1,118
Vesting of restricted stock units	17,323,096		1		(1		)	—		—			—			—			—			—			—
Shares issued under employee stock purchase plan	857,171		—		5,396			—		—			—			—			5,396			—			5,396
Tax withholdings related to net share settlements of stock-based compensation awards	(5,708,990	)	—		(44,509		)	—		—			—			—			(44,509		)	—			(44,509		)
Stock-based compensation on equity-classified awards	—		—		133,230			—		—			—			—			133,230			—			133,230
Tax shortfalls, net of excess tax benefits, on stock-based compensation awards	—		—		(569		)	—		—			—			—			(569		)	—			(569		)
Purchases of treasury stock	—		—		—			(22,806,304	)	(151,880		)	—			—			(151,880		)	—			(151,880		)
Partnership distributions to noncontrolling interest holders	—		—					—		—			—			—			—			(7,312		)	(7,312		)
Balance at December 31, 2014	701,408,060		$	70	$	1,847,420		(27,239,104	)	$	(198,467	)	$	(921,960	)	$	35,763		$	762,826		$	2,118		$	764,944

(1) Excludes less than $0.1 million attributable to redeemable noncontrolling interests for the year ended December 31, 2012, which were reported outside of permanent equity on the consolidated balance sheets.

See Notes to Consolidated Financial Statements.

87

GROUPON, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Year Ended December 31,
	2014			2013			2012
Operating activities
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization of property, equipment and software	97,799			67,823			35,891
Amortization of acquired intangible assets	47,122			21,626			19,910
Stock-based compensation	122,019			121,462			104,117
Deferred income taxes	(11,106		)	(18,055		)	(7,651		)
Excess tax benefits on stock-based compensation	(15,980		)	(20,454		)	(27,023		)
Loss on equity method investments	459			44			9,925
(Gain) loss, net from changes in fair value of contingent consideration	(2,444		)	(3,171		)	897
Gain on E-Commerce transaction	—			—			(56,032		)
Impairments of investments	2,036			85,925			50,553
Change in assets and liabilities, net of acquisitions:
Restricted cash	6,010			2,183			(4,372		)
Accounts receivable	(13,660		)	10,989			10,534
Prepaid expenses and other current assets	78			(62,906		)	(70,859		)
Accounts payable	(11,911		)	(31,288		)	18,711
Accrued merchant and supplier payables	115,106			88,468			149,918
Accrued expenses and other current liabilities	(16,182		)	4,053			47,742
Other, net	33,397			40,679			35,604
Net cash provided by operating activities	288,824			218,432			266,834
Investing activities
Purchases of property and equipment and capitalized software	(88,292		)	(63,505		)	(95,836		)
Acquisitions of businesses, net of acquired cash	(131,463		)	(7,349		)	(46,890		)
Purchases of investments	(6,904		)	(21,982		)	(37,523		)
Settlement of liabilities related to purchase of additional interests in consolidated subsidiaries	(2,297		)	(1,959		)	—
Purchases of additional interests in consolidated subsidiaries	—			—			(14,130		)
Purchases of intangible assets	(500		)	(1,520		)	(600		)
Net cash used in investing activities	(229,456		)	(96,315		)	(194,979		)
Financing activities
Payments for purchases of treasury stock	(153,253		)	(44,840		)	—
Excess tax benefits on stock-based compensation	15,980			20,454			27,023
Taxes paid related to net share settlements of stock-based compensation awards	(43,618		)	(47,575		)	(12,996		)
Debt issuance costs	(1,029		)	—			—
Common stock issuance costs in connection with acquisition of business	(158		)	—			—
Payments of contingent consideration from acquisitions	—			(4,289		)	(4,700		)
Settlements of purchase price obligations related to acquisitions	(3,136		)	(5,000		)	(2,233		)
Proceeds from stock option exercises and employee stock purchase plan	6,514			7,303			9,313
Partnership distribution payments to noncontrolling interest holders	(8,034		)	(6,130		)	(4,312		)
Payments of capital lease obligations	(7,422		)	(1,620		)	—
Net cash (used in) provided by financing activities	(194,156		)	(81,697		)	12,095
Effect of exchange rate changes on cash and cash equivalents	(33,771		)	(9,237		)	2,404
Net (decrease) increase in cash and cash equivalents	(168,559		)	31,183			86,354
Cash and cash equivalents, beginning of period	1,240,472			1,209,289			1,122,935
Cash and cash equivalents, end of period	$	1,071,913		$	1,240,472		$	1,209,289

88

Supplemental disclosure of cash flow information
Income tax payments	$	24,006	$	60,767	$	126,987
Non-cash investing and financing activities
Issuance of common stock in connection with acquisition of business	$	173,972	$	3,051	$	—
Contingent consideration liabilities incurred in connection with acquisitions	4,388		3,567		3,400
Equipment acquired under capital lease obligations	36,574		10,001		1,122
Shares issued to settle liability-classified awards and contingent consideration	1,041		4,649		2,267
Liability for purchases of treasury stock	374		1,747		—
Liability for purchase of additional interests in consolidated subsidiaries	1,598		—		1,959
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software	2,109		1,564		1,891
Contribution of investment in E-Commerce transaction	—		—		47,042
Stock issued in exchange for additional interests in consolidated subsidiaries	—		—		527
Shares issued to settle contingent consideration	—		—		236

See Notes to Consolidated Financial Statements.

89

GROUPON, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.     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 16 "Segment Information."

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The 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 consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles ("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 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 either the equity method, the cost method or as available-for-sale securities, as appropriate.

Reclassifications

Certain reclassifications have been made to the consolidated financial statements of prior years and the accompanying notes to conform to the current year presentation.

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the consolidated financial statements and accompanying notes. Estimates are 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.

Cash and Cash Equivalents

The Company considers all highly‑liquid investments with an original maturity of three months or less from the date of purchase to be cash equivalents. The Company's cash equivalents primarily include holdings in money market funds and overnight securities.

Accounts Receivable, Net

Accounts receivable primarily represents the net cash due from the Company's credit card and other payment processors for cleared transactions. The carrying amount of the Company's receivables is reduced by an allowance for doubtful accounts that reflects management's best estimate of amounts that will not be collected. The allowance is based on historical loss experience

90

GROUPON, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

and any specific risks identified in collection matters. Accounts receivable are charged off against the allowance for doubtful accounts when it is determined that the receivable is uncollectible. The Company's allowance for doubtful accounts as of December 31, 2014 and 2013 was $2.2 million and $0.7 million, respectively. Bad debt expense for the years ended December 31, 2014, 2013 and 2012 was $2.3 million, $0.7 million and $0.6 million, respectively.

Inventories

 Inventories, consisting of merchandise purchased for resale, are accounted for using the first-in-first-out ("FIFO") method of accounting and are valued at the lower of cost or market value. The Company writes down its inventory for estimated obsolescence and to the lower of cost or market value based upon assumptions about future demand and market conditions. If actual market conditions are less favorable than those projected by management, additional inventory write-downs may be required. Once established, the original cost of the inventory less the related inventory allowance represents a new cost basis.

Restricted Cash

The Company had $12.0 million and $5.2 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2014. The Company had $14.6 million and $0.4 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2013. Restricted cash primarily represents amounts that the Company is unable to access for operational purposes pursuant to contractual arrangements with certain financial institutions and with entities that process merchant payments on the Company's behalf.

Internal-Use Software

The Company incurs costs related to internal-use software and website development, including purchased software and internally-developed software. Costs incurred in the planning and evaluation stage of internally-developed software and website development are expensed as incurred. Costs incurred and accumulated during the application development stage are capitalized and included within "Property, equipment and software, net" on the consolidated balance sheets. Capitalized internally-developed software and website development costs are amortized over their expected economic life of two years using the straight-line method.

Goodwill

Goodwill is allocated to the Company's reporting units at the date the goodwill is initially recorded. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill.

The Company evaluates goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company has the option to assess goodwill for impairment by first performing a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount. If the Company determines that it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then further goodwill impairment testing is not required to be performed. If the Company determines that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, or if the Company does not elect the option to perform an initial qualitative assessment, the Company is required to perform a two-step goodwill impairment test. In the first step, the fair value of the reporting unit is compared to its book value including goodwill. If the fair value of the reporting unit is in excess of its book value, the related goodwill is not impaired and no further analysis is necessary. If the fair value of the reporting unit is less than its book value, there is an indication of potential impairment and a second step is performed. When required, the second step of testing involves calculating the implied fair value of goodwill for the reporting unit. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets and identifiable intangible assets as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. For reporting units with a negative book value (i.e., excess of liabilities over assets), qualitative factors are evaluated to determine whether it is necessary to perform the second step of the goodwill impairment test.

91

GROUPON, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Impairment of Long-Lived Assets

Long‑lived assets, such as property, equipment and software and intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. If circumstances require that a long‑lived asset or asset group be tested for possible impairment, the Company first compares the undiscounted cash flows expected to be generated by that long-lived asset or asset group to its carrying amount. If the carrying amount of the long‑lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair value.

Investments

Investments in nonmarketable equity shares with no redemption provisions that are not common stock or in-substance common stock or for which the Company does not have the ability to exercise significant influence are accounted for using the cost method of accounting and classified within "Investments" on the consolidated balance sheets. Under the cost method of accounting, investments are carried at cost and are adjusted only for other-than-temporary declines in fair value, certain distributions and additional investments.

Investments in common stock or in-substance common stock for which the Company has the ability to exercise significant influence are accounted for under the equity method and classified within "Investments" on the consolidated balance sheets. The Company's proportionate share of income or loss on equity method investments is presented within "Other expense, net" on the consolidated statements of operations.

The Company has investments in convertible debt securities and convertible redeemable preferred shares issued by nonpublic entities and has categorized these investments as available-for-sale securities, which are classified within "Investments" on the consolidated balance sheets. Available-for-sale securities are recorded at fair value each reporting period. Unrealized gains and losses, net of the related tax effects, are excluded from earnings and recorded as a separate component within "Accumulated other comprehensive income" on the consolidated balance sheets until realized. Interest income is reported within "Other expense, net" on the consolidated statements of operations.

Other-than-Temporary Impairment of Investments

An unrealized loss exists when the current fair value of an investment is less than its amortized cost basis. The Company conducts reviews of its investments with unrealized losses on a quarterly basis to evaluate whether those impairments are other-than-temporary. This evaluation, which is performed at the individual investment level, consists of several qualitative and quantitative factors regarding the severity and duration of the unrealized loss as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Evidence considered in this evaluation includes the amount of the impairment, the length of time that the investment has been impaired, the factors contributing to the impairment, the financial condition and near-term prospects of the investee, recent operating trends and forecasted performance of the investee, market conditions in the geographic area or industry in which the investee operates, and the Company's strategic plans for holding the investment in relation to the period of time expected for an anticipated recovery in value. Additionally, the Company considers whether it intends to sell the investment or whether it is more-likely-than-not that the Company will be required to sell the investment before recovery of the amortized cost basis. Investments with unrealized losses that are determined to be other-than-temporary are written down to fair value with a charge to earnings. Unrealized losses that are determined to be temporary in nature are not recorded for cost method investments and equity method investments, while such losses are recorded, net of tax, in accumulated other comprehensive income for available-for-sale securities.

Income Taxes

The provision for income taxes is determined using the asset and liability method. Under this method, deferred tax assets and liabilities are calculated based upon the temporary differences between the financial statement and income tax bases of assets and liabilities using the enacted tax rates that are applicable in a given year. The deferred tax assets are recorded net of a valuation allowance when, based on the weight of available evidence, the Company believes it is more-likely-than-not that some portion or all of the recorded deferred tax assets will not be realized in future periods. The Company considers many factors when assessing the likelihood of future realization of its deferred tax assets, including recent cumulative earnings experience, expectations of future taxable income and capital gains by taxing jurisdiction, the carry‑forward periods available for tax reporting purposes, the ability to carryback losses and other relevant factors. The Company allocates its valuation allowance to current and non-current

92

GROUPON, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

deferred tax assets on a pro-rata basis. A change in the estimate of future taxable income may require an increase or decrease to the valuation allowance.

The Company utilizes a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more-likely-than-not that the position will be sustained on audit, including resolution of related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount which is more than 50% likely of being realized upon ultimate settlement. The Company includes interest and penalties related to uncertain tax positions within "Provision for income taxes" on the consolidated statements of operations. See Note 12 "Income Taxes."

Lease and Asset Retirement Obligations

The Company categorizes leases at their inception as either operating or capital leases and may receive renewal or expansion options, rent holidays, and leasehold improvement and other incentives on certain lease agreements. The Company recognizes lease costs on a straight-line basis, taking into account adjustments for free or escalating rental payments and deferred payment terms. Additionally, lease incentives are accounted for as a reduction of lease costs over the term of the agreement. Leasehold improvements are capitalized at cost and amortized over the shorter of their useful life or the non-cancellable term of the lease. The Company records rent expense associated with operating lease obligations primarily within "Selling, general and administrative" on the consolidated statements of operations.

The Company establishes assets and liabilities for the present value of estimated future costs to retire long-lived assets at the termination or expiration of a lease. Such assets are amortized over the lease term, and the recorded liabilities are accreted to the future value of the estimated retirement costs. The related amortization and accretion expenses are presented within "Selling, general and administrative" on the consolidated statements of operations.

Revenue Recognition

The Company recognizes revenue when the following criteria are met: persuasive evidence of an arrangement exists; delivery has occurred; the selling price is fixed or determinable; and collection is reasonably assured.

Third party revenue recognition

The Company generates third party revenue, where it acts as a third party marketing agent, by offering goods and services provided by third party merchants at a discount through its online local commerce marketplaces that connect merchants to consumers. The Company's marketplaces include deals offered through a variety of categories including: Local, Goods and Travel. Customers purchase the discount vouchers ("Groupons") from the Company and redeem them with the Company's merchants.

The revenue recognition criteria are met when the customer purchases a deal, the Groupon has been electronically delivered to the purchaser and a listing of Groupons sold has been made available to the merchant. At that time, the Company's obligations to the merchant, for which it is serving as a marketing agent, are substantially complete. The Company's remaining obligations, which are limited to remitting payment to the merchant and continuing to make available on the Company's website information about Groupons sold that was previously provided to the merchant, are inconsequential or perfunctory. For a portion of the hotel deals offered through the Company's online local marketplaces, the Company facilitates the booking of rooms by taking reservations through its websites. Such reservations are generally cancelable at any time prior to check-in and the Company defers the revenue on those deals until the customer's stay occurs.

.    The Company records as revenue the net amount it retains from the sale of Groupons after deducting the portion of the purchase price that is payable to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Revenue is presented on a net basis because the Company is acting as a marketing agent of the merchant in the transaction.

For merchant payment arrangements that are structured under a redemption model, merchants are not paid until the customer redeems the Groupon that has been purchased. If a customer does not redeem the Groupon under this payment model, the Company retains all the gross billings. The Company recognizes incremental revenue from unredeemed Groupons and derecognizes the related accrued merchant payable when its legal obligation to the merchant expires, which the Company believes is shortly after deal expiration in most jurisdictions that have payment arrangements structured under a redemption model.     

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Direct revenue recognition

The Company evaluates whether it is appropriate to record the gross amount of its sales and related costs by considering a number of factors, including, among other things, whether the Company is the primary obligor under the arrangement, has inventory risk and has latitude in establishing prices. Direct revenue is derived primarily from selling consumer products through the Company's Goods category where the Company is the merchant of record. The Company is the primary obligor in these transactions, is subject to general inventory risk and has latitude in establishing prices. Accordingly, direct revenue is presented on a gross basis, excluding applicable taxes and net of estimated refunds. Direct revenue, including associated shipping revenue, is recognized when title passes to the customer upon delivery of the product.

Other revenue recognition

Advertising revenue is recognized when the advertiser's logo or website link has been included on the Company's websites or in specified email distributions for the requisite period of time as set forth in the agreement with the advertiser. Commission revenue is earned when customers make purchases with retailers using coupons accessed through the Company's websites and mobile applications. Revenue from payment processing is earned on a per transaction basis. The Company recognizes revenue from those activities when the underlying transactions are completed. Revenue from point of sale solutions is recognized on a subscription basis over the term of the arrangement with the merchant.

Discounts

The Company provides discount offers to encourage purchases of goods and services through its marketplaces. The Company records discounts as a reduction of revenue.

Cost of revenue

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue transactions, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating the Company's fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees, are allocated to cost of third party revenue, direct revenue and other revenue in proportion to gross billings during the period.

Technology costs within cost of revenue consist of a portion of the payroll and stock‑based compensation expense related to the Company's technology support personnel who are responsible for operating and maintaining the infrastructure of the Company's websites. Technology costs also include a portion of amortization expense from internal-use software, primarily related to website development. Remaining technology costs within cost of revenue include email distribution costs. Editorial costs included in cost of revenue consist of payroll and stock‑based compensation expense related to the Company's editorial personnel, as these staff members are primarily dedicated to drafting and promoting deals.

Refunds

The Company estimates future refunds utilizing a statistical model that incorporates the following data inputs and factors: historical refund experience developed from millions of deals featured on the Company's websites and mobile applications, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in Company practices in response to refund experience or economic trends that might impact customer demand. The portion of customer refunds for which the merchant's share is not recoverable on third party revenue deals is estimated based on the refunds that are expected to be issued after expiration of the related vouchers, the refunds that are expected to be issued due to the merchant bankruptcy or poor customer experience, and whether the payment terms of the related merchant contracts are structured using a redemption payment model or a fixed payment model.

The Company accrues costs associated with refunds within "Accrued expenses" on the consolidated balance sheets. The cost of refunds for third party revenue where the amounts payable to the merchant are recoverable and for all direct revenue is presented on the consolidated statements of operations as a reduction to revenue. The cost of refunds for third party revenue for

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which the merchant's share is not recoverable is presented as a cost of revenue.

The Company assesses the trends that could affect its estimates on an ongoing basis and makes adjustments to the refund reserve calculations if it appears that changes in circumstances, including changes to the Company's refund policies, may cause future refunds to differ from its original estimates. If actual results are not consistent with the estimates or assumptions stated above, the Company may need to change its future estimates, and the effects could be material to the consolidated financial statements.

Customer Credits

The Company issues credits to its customers that can be applied against future purchases through its online marketplaces for certain qualifying acts, such as referring new customers, and also to satisfy refund requests. The Company has recorded its customer credit obligations within "Accrued expenses" on the consolidated balance sheets (See Note 7 "Supplemental Consolidated Balance Sheet and Statements of Operations Information"). Customer credit obligations incurred for new customer referrals or other qualifying acts are expensed as incurred and are classified within "Marketing" on the consolidated statements of operations. Customer credits issued to satisfy refund requests are applied as a reduction to the refunds reserve.

Stock‑Based Compensation

The Company measures stock‑based compensation cost at fair value, net of estimated forfeitures. Expense is generally recognized on a straight-line basis over the service period during which awards are expected to vest, except for awards with performance conditions, which are recognized using the accelerated method. The Company includes stock-based compensation expense within "Cost of revenue," "Marketing" and "Selling, general and administrative," consistent with the respective employees' cash compensation, on the consolidated statements of operations. See Note 11 "Compensation Arrangements."

Foreign Currency

Balance sheet accounts of the Company's operations outside of the U.S. are translated from foreign currencies into U.S. dollars at the exchange rates as of the consolidated balance sheet dates. Revenue and expenses are translated at average exchange rates during the period. Foreign currency translation adjustments and foreign currency gains and losses on intercompany balances that are of a long-term investment nature are included within "Accumulated other comprehensive income" on the consolidated balance sheets. Foreign currency gains and losses resulting from transactions which are denominated in currencies other than the entity's functional currency, including foreign currency gains and losses on intercompany balances that are not of a long-term investment nature, are included within "Other expense, net" on the consolidated statements of operations. For the years ended December 31, 2014, 2013 and 2012, the Company had $31.5 million of foreign currency transaction losses, $10.3 million of foreign currency transaction losses and $1.4 million of foreign currency transaction gains, respectively.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers. This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The ASU is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. The Company is still assessing the impact of adoption on its consolidated financial statements.

There are no additional accounting standards that have been issued but not yet adopted that the Company believes will have a material impact on its consolidated financial position or results of operations.

3. BUSINESS COMBINATIONS AND ACQUISITIONS OF NONCONTROLLING INTERESTS

2014 Acquisition Activity

The Company acquired six businesses during the year ended December 31, 2014.  Business combinations are accounted for using the acquisition method, and the results of acquired businesses are included in the consolidated financial statements beginning on the respective acquisition dates. 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

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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 years endedDecember 31, 2014 and 2013, $3.7 million and $3.2 million of external transaction costs related to business combinations, primarily consisting of legal and advisory fees, are classified within "Acquisition-related expense (benefit), net" on the consolidated statements of operations, respectively. Such costs were not material for the year ended December 31, 2012.

LivingSocial Korea, Inc.

On January 2, 2014, the Company acquired all of the outstanding equity interests of LivingSocial Korea, Inc., a Korean corporation and holding company of Ticket Monster Inc. ("Ticket Monster"). 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 primary purpose of this acquisition was to grow the Company's merchant and customer base and expand its presence in the Korean e-commerce market. The aggregate acquisition-date fair value of the consideration transferred for the Ticket Monster acquisition totaled $259.4 million, which consisted of the following (in thousands):

Cash	$	96,496
Issuance of 13,825,283 shares of Class A common stock	162,862
Total	$	259,358

The fair value of the Class A Common Stock issued as consideration was measured based on the stock price upon closing of the transaction on January 2, 2014.

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The following table summarizes the allocation of the aggregate acquisition price of the Ticket Monster acquisition (in thousands):

Cash and cash equivalents	$	24,768
Accounts receivable	17,732
Deferred income taxes	1,264
Prepaid expenses and other current assets	829
Property, equipment and software	5,944
Goodwill	218,692
Intangible assets:(1)
Subscriber relationships	57,022
Merchant relationships	32,176
Developed technology	571
Trade name	19,325
Other non-current assets	3,033
Total assets acquired	$	381,356
Accounts payable	$	5,951
Accrued merchant and supplier payables	82,934
Accrued expenses	22,700
Other current liabilities	3,482
Deferred income taxes, non-current	1,264
Other non-current liabilities	5,667
Total liabilities assumed	$	121,998
Total acquisition price	$	259,358

(1) The estimated useful lives of the acquired intangible assets are 5 years for subscriber relationships, 3 years for merchant relationships, 2 years for developed technology and 5 years for trade name.

    Ideeli, Inc.

On January 13, 2014, the Company acquired all of the outstanding equity interests of Ideeli, Inc. (d/b/a "Ideel"), a fashion flash site based in the United States. The primary purpose of this acquisition was to expand and advance the Company's product offerings. The aggregate acquisition-date fair value of the consideration transferred for the Ideel acquisition totaled $42.7 million in cash.

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The following table summarizes the allocation of the aggregate acquisition price of the Ideel acquisition (in thousands):

Cash and cash equivalents	$	79
Accounts receivable	988
Deferred income taxes	640
Prepaid expenses and other current assets	22,081
Property, equipment and software	8,173
Goodwill	4,203
Intangible assets:(1)
Subscriber relationships	5,490
Brand relationships	7,100
Trade name	4,500
Deferred income taxes, non-current	8,877
Total assets acquired	$	62,131
Accounts payable	$	1,640
Accrued supplier payables	4,092
Accrued expenses	9,118
Other current liabilities	482
Deferred income taxes, non-current	348
Other non-current liabilities	3,753
Total liabilities assumed	$	19,433
Total acquisition price	$	42,698

(1) The estimated useful lives of the acquired intangible assets are 3 years for subscriber relationships, 5 years for brand relationships and 5 years for trade name.

Other Acquisitions

The Company acquired four other businesses during the year ended December 31, 2014. The primary purpose of these acquisitions was to acquire an experienced workforce, expand and advance product offerings and enhance technology capabilities. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $32.9 million, which consisted of the following (in thousands):

Cash	$	17,364
Issuance of 1,429,897 shares of Class A common stock	11,110
Contingent consideration	4,388
Total	$	32,862

The fair value of the Class A Common Stock issued as consideration for one of the acquisitions was measured based on the stock price upon closing of the related transaction on November 13, 2014.

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The following table summarizes the allocation of the aggregate purchase price of these other acquisitions (in thousands):

Net working capital (including acquired cash of $0.2 million)	$	(396	)
Goodwill	27,150
Intangible assets: (1)
Subscriber relationships	2,555
Developed technology	3,372
Brand relationships	579
Deferred income taxes, non-current	(398		)
Total purchase price	$	32,862

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations presented below do not include the results of these other acquisitions because the effects of these acquisitions, individually and in the aggregate, were not material to the Company's consolidated results of operations.

Pro Forma Financial Information

     The following unaudited pro forma information presents the combined operating results of the Company for the year endedDecember 31, 2013, as if the Company had acquired Ticket Monster and Ideel as of January 1, 2013 (in thousands). Pro forma results of operations have not been presented for the year ended December 31, 2014, because the operating results of Ticket Monster and Ideel from January 1, 2014 through their respective acquisition dates were not material to the Company's consolidated results of operations for the year ended December 31, 2014. The underlying pro forma results include the historical financial results of the Company and these two acquired businesses adjusted for depreciation and amortization expense associated with the assets acquired. The unaudited pro forma results do not reflect any operating efficiencies or potential cost savings which may result from the consolidation of the operations of the Company and the acquired entities. Accordingly, these unaudited pro forma results are not necessarily indicative of what the actual results of operations of the combined company would have been if the acquisitions had occurred as of January 1, 2013, nor are they indicative of future results of operations.

	Year Ended   December 31, 2013
Revenue	$	2,763,639
Net loss	(217,613		)

     The revenue and net loss of Ticket Monster included in our consolidated statements of operations were $149.6 million and $45.4 million, respectively, for the year ended December 31, 2014. The revenue and net loss of Ideel included in our consolidated statements of operations were $82.4 million and $12.3 million, respectively, for the year ended December 31, 2014.

2013 Acquisition Activity

The primary purpose of the Company's seven acquisitions during the year ended December 31, 2013 was to enhance the Company's technology capabilities, acquire experienced workforces and expand and advance product offerings. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $16.1 million, which consisted of the following (in thousands):

Cash	$	9,459
Issuance of Class A common stock	3,051
Contingent consideration	3,567
Total	$	16,077

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The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2013 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,728
Property and equipment	99
Goodwill	9,504
Intangible assets: (1)
Subscriber relationships	1,928
Merchant relationships	757
Developed technology	2,742
Other intangible assets	50
Net deferred tax liabilities	(731		)
Total acquisition price	$	16,077

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations have not been presented because the effects of these business combinations, individually and in the aggregate, were not material to the Company's consolidated results of operations.

2012 Acquisition Activity

The primary purpose of the Company's ten acquisitions during the year ended December 31, 2012 was to enhance the Company's technology and marketing capabilities and to expand and advance product offerings. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $54.9 million, which consisted of the following (in thousands):

Cash	$	49,013
Purchase price obligations	2,485
Contingent consideration	3,400
Total	$	54,898

The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2012 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,750
Property and equipment	165
Goodwill	39,170
Intangible assets:(1)
Subscriber relationships	170
Merchant relationships	1,500
Developed technology	14,350
Net deferred tax liabilities	(2,207		)
Total acquisition price	$	54,898

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations have not been presented because the effects of these business combinations, individually

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and in the aggregate, were not material to the Company's consolidated results of operations.

Purchases of Additional Interests in Consolidated Subsidiaries

During the year ended December 31, 2014, the Company acquired additional interests in majority-owned subsidiaries for an aggregate acquisition price of $3.9 million. Cash consideration of $2.3 million was paid in 2014 and the remaining amounts of $1.0 million and $0.6 million are included within other current liabilities and other non-current liabilities, respectively, on the consolidated balance sheet as of December 31, 2014.

During the year ended December 31, 2012, the Company acquired additional interests in majority-owned subsidiaries for an aggregate acquisition price of $16.7 million, including $16.1 million of cash consideration and $0.6 million of Class A common stock. Cash consideration of $14.1 million was paid in 2012 and the remaining $2.0 million was paid in 2013. Additionally, in connection with these transactions, certain liability-classified subsidiary stock-based compensation awards were settled in exchange for $15.2 million of cash, $2.3 million of Class A common stock and $10.5 million of deferred compensation that was subsequently recognized as compensation expense over service periods of between one and two years. Cash settlements of $14.0 million were paid in 2012, and the remaining $1.2 million was paid in 2013.

4. PROPERTY, EQUIPMENT AND SOFTWARE, NET

The following summarizes the Company's property, equipment and software, net (in thousands):

	December 31,
	2014			2013
Warehouse equipment	$	4,859		$	3,997
Furniture and fixtures	18,610			13,526
Leasehold improvements	39,900			35,830
Office and telephone equipment	4,448			5,062
Purchased software	40,448			22,499
Computer hardware(1)	135,731			84,673
Internally-developed software	133,598			79,113
Total property, equipment and software, gross	377,594			244,700
Less: accumulated depreciation and amortization	(195,119		)	(110,277		)
Property, equipment and software, net	$	182,475		$	134,423

(1) Includes computer hardware acquired under capital leases of $48.0 million and $11.8 million as of December 31, 2014 and 2013, respectively.    

Property, equipment and software are stated at cost and assets under capital leases are stated at the present value of minimum lease payments. Depreciation expense is recorded on a straight-line basis over the estimated useful lives of the assets (generally three years for computer hardware, purchased software and office and telephone equipment, five to ten years for furniture and fixtures and warehouse equipment, and the shorter of the term of the lease or the asset's useful life for leasehold improvements) and is primarily classified within "Selling, general and administrative" on the consolidated statements of operations. Depreciation and amortization expense on property, equipment and software, including internally-developed software, was $97.8 million, $67.8 million and $35.9 million for the years ended December 31, 2014, 2013 and 2012, respectively. These amounts include amortization expense of $7.2 million and $2.1 million on assets under capital leases for the years ended December 31, 2014 and 2013, respectively. Amortization expense recognized for assets under capital leases was not material for the year ended December 31, 2012. See Note 8, "Commitments and Contingencies" for further detail regarding capital leases.

As of December 31, 2014 and 2013, the carrying amount of internally-developed software, net of accumulated amortization, was $61.8 million and $47.9 million, respectively. Amortization expense for capitalized internally-developed software was $42.1 million, $25.2 million and $3.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.

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For the year ended December 31, 2014, $11.7 million and $30.4 million of amortization expense for capitalized internally-developed software is included within "Cost of revenue" and "Selling, general and administrative," respectively, on the consolidated statements of operations. For the year ended December 31, 2013, $7.9 million and $17.3 million of amortization expense for capitalized internally-developed software is included within "Cost of revenue" and "Selling, general and administrative," respectively, on the consolidated statements of operations. For the year ended December 31, 2012, amortization expense for capitalized internally-developed software is primarily included within "Selling, general and administrative."

5. GOODWILL AND OTHER INTANGIBLE ASSETS

The following table summarizes the Company's goodwill activity by segment for the years ended December 31, 2014 and 2013 (in thousands):

	North America			International			EMEA			Rest of World			Consolidated
Balance as of December 31, 2012	$	79,276		$	127,408		$	—		$	—		$	206,684
Reallocation to new segments	—			(124,770		)	105,347			19,423			—
Goodwill related to acquisitions	4,893			—			4,611			—			9,504
Other adjustments(1)	1,288			(2,638		)	5,711			278			4,639
Balance as of December 31, 2013	$	85,457		$	—		$	115,669		$	19,701		$	220,827
Goodwill related to acquisitions	31,353			—			—			218,692			250,045
Other adjustments(1)	(92		)	—			(13,490		)	(9,480		)	(23,062		)
Balance as of December 31, 2014	$	116,718		$	—		$	102,179		$	228,913		$	447,810

(1) Represents the impact of changes in foreign exchange rates on goodwill.

The Company evaluates goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. No goodwill impairments were recognized for the years ended December 31, 2014, 2013 and 2012.

The following tables summarize the Company's intangible assets (in thousands):

	December 31, 2014
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	103,858	$	48,754	$	55,104
Merchant relationships	39,448		18,677		20,771
Trade names	29,190		10,666		18,524
Developed technology	25,903		21,989		3,914
Brand relationships	7,664		1,486		6,178
Other intangible assets	17,045		10,979		6,066
Total	$	223,108	$	112,551	$	110,557

	December 31, 2013
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	45,541	$	30,866	$	14,675
Merchant relationships	9,186		7,991		1,195
Trade names	6,739		6,739		—
Developed technology	23,038		19,547		3,491
Other intangible assets	16,776		7,694		9,082
Total	$	101,280	$	72,837	$	28,443

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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 $47.1 million, $21.6 million and $19.9 million for the years endedDecember 31, 2014, 2013 and 2012, respectively. As of December 31, 2014, the Company's estimated future amortization expense related to intangible assets is as follows (in thousands):

Years Ended December 31,
2015	$	40,495
2016	33,707
2017	18,653
2018	17,617
2019	85
Thereafter	—
Total	$	110,557

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6. INVESTMENTS

The following table summarizes the Company's investments (dollars in thousands):

	December 31, 2014		Percent Ownership of Voting Stock					December 31, 2013		Percent Ownership of Voting Stock
Cost and equity method investments:
Cost method investments	$	15,630	6	%	to	19	%	$	15,788	6	%	to	19	%
Equity method investments	1,231		21	%	to	50	%	1,690		21	%	to	50	%
Total cost and equity method investments	16,861							17,478
Available-for-sale securities:
Convertible debt securities	2,527							3,174
Redeemable preferred shares	4,910		17	%	to	19	%	—		19	%
Total available-for-sale securities	7,437							3,174
Total investments	$	24,298						$	20,652

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 December 31, 2014 and 2013, respectively (in thousands):

	December 31, 2014								December 31, 2013
	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	$	2,030	$	497	$	—	$	2,527	$	3,370	$	—	$	(196	)	$	3,174
Redeemable preferred shares	4,599		311		—		4,910		—		—		—			—
Total available-for-sale securities	$	6,629	$	808	$	—	$	7,437	$	3,370	$	—	$	(196	)	$	3,174

Investments in E-Commerce and Life Media (F-Tuan)

In June 2012, Life Media Limited ("F-tuan"), an entity with operations in China, acquired the Company's 49.8% interest in E-Commerce King Limited ("E-Commerce"), an entity with operations in China. In exchange for its interest in E-Commerce and an additional $25.0 million of cash consideration, the Company received a 19.1% interest in F-tuan in the form of common and Series E preferred shares. The Company recognized a non-operating gain of $56.0 million as a result of the transaction, which is included within "Other expense, net" on the consolidated statement of operations for the year ended December 31, 2012. The gain represented the excess of the fair value of the Company's investments in F-tuan over the carrying value of its E-Commerce investment as of the date of the transaction and the $25.0 million of cash consideration.

In August 2013, the Company entered into an exchange transaction with F-tuan whereby it received newly issued shares of Series F preferred stock in exchange for all shares of F-tuan common stock previously held by the Company and $8.0 million of cash consideration, which was paid in two installments of $6.5 million and $1.5 million in August and October 2013, respectively. The transaction was recorded at cost. The Company’s investments in F-tuan following this transaction are in the form of Series E and Series F preferred shares. Those preferred shares rank pari passu with certain other classes of F-tuan’s outstanding preferred stock and have an aggregate liquidation preference of $85.5 million. The Company’s voting interest in F-tuan remained 19.1% after the transaction.

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The Company's investments in the Series E and Series F preferred shares of F-tuan are classified as available-for-sale securities because the investee's Memorandum of Association provides for redemption of the preferred shares at the Company's option beginning in October 2017. The Company's investment in the common shares of F-tuan, which were held prior to the August 2013 exchange transaction, was accounted for using the cost method of accounting because the Company did not have the ability to exercise significant influence over the operating and financial policies of the investee. As discussed below, the Company's investments in F-tuan were written down to zero through an other-than-temporary impairment charge as of December 31, 2013, and continue to have an estimated fair value of zero as of December 31, 2014.

Other Investments

In February 2014, the Company acquired redeemable preferred shares in an online home services company for $4.6 million. The shares are accounted for as available-for-sale securities.

In February 2013, the Company purchased preferred shares in a non-U.S.-based payment processor for $13.6 million. The Company purchased $2.1 million of additional preferred shares from that entity in July 2014. This investment is accounted for using the cost method of accounting because the Company does not have the ability to exercise significant influence over the operating and financial policies of the investee.

Other-Than-Temporary Impairment

For the year ended December 31, 2014, the Company recorded $2.0 million of other-than-temporary impairments, including a $1.3 million impairment of an investment in convertible debt securities, which are reported within "Other expense, net" on the consolidated statements of operations.

For the year ended December 31, 2013, the Company recorded an $85.5 million other-than-temporary impairment of its investments in F-tuan. F-tuan has operated at a loss since its inception and has used proceeds from equity offerings to fund investments in marketing and other initiatives to grow its business. As discussed above, the Company participated in an equity funding round in 2013 and the aggregate cash proceeds raised by F-tuan in that round, which were funded in two installments in September and October 2013 and included proceeds received from another investor, were intended to fund its operations for approximately six months, at which time additional financing would be required. In December 2013, the Company was notified by F-tuan's largest shareholder, which had served as a source of funding and operational support, that they had made a strategic decision to cease providing support to F-tuan. At its December 12, 2013 meeting, the Company's Board of Directors discussed the Company's strategy with respect to the Chinese market in light of this information. After that meeting, management pursued opportunities to divest its minority investment in F-tuan either for cash or in exchange for a minority equity investment in a larger competitor, but no agreement was ultimately reached. At its February 11, 2014 meeting, the Board of Directors determined that the Company should not provide funding to F-tuan in future periods. At that time, F-tuan required additional financing to continue its operations. Given the uncertainty as to whether it would be able to obtain such financing and the Company's decision not to provide significant funding itself, the Company concluded that there was substantial doubt as to F-tuan's ability to operate as a going concern for the foreseeable future.

The Company's evaluation of other-than-temporary impairments involves consideration of qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. As a result of F-tuan's liquidity needs, the decision by existing shareholders to cease providing support, the Company's inability to find a buyer for its minority investment, the Company's decision not to be a source of significant funding itself and the expectation that any subsequent third party investment, if one occurs, would substantially dilute the existing shareholders, the Company concluded that its investment in F-tuan was other-than-temporarily impaired and its best estimate of fair value was zero. Accordingly, the Company recognized an $85.5 million impairment charge in earnings for the year ended December 31, 2013, bringing the fair value of the investment to zero. The Company's investments in F-tuan continue to have an estimated fair value of zero as of December 31, 2014.

For the year ended December 31, 2012, the Company recorded a $50.6 million other-than-temporary impairment of its investments in F-tuan. As described above, the Company obtained these investments in June 2012 as part of a transaction in which it received a 19% interest in F-tuan, in the form of common and Series E preferred shares, in exchange for its 49.8% interest in E-Commerce and an additional $25.0 million of cash consideration. The $128.1 million acquisition-date fair value of the investments

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in F-tuan, a nonpublic entity, was determined using the discounted cash flow method, which is an income approach, and the resulting value was corroborated using the market approach. The inputs used to estimate fair value under the discounted cash flow method included financial projections and the discount rate. Because these fair value inputs are unobservable, fair value measurements of the investments in F-tuan are classified within Level 3 of the fair value hierarchy.

In connection with the acquisition-date fair value measurements of the investments in F-tuan, the Company obtained financial projections from the investee. The Company evaluated those financial projections based on its knowledge of the business and related market conditions. As a result of that evaluation, downward adjustments were applied to reduce the anticipated growth that was reflected in the original projections. A 25% discount rate was applied to the adjusted cash flow projections, which included an entity-specific risk premium to account for the riskiness and uncertainty inherent in the business. Additionally, the Company corroborated the acquisition-date fair value measurement of F-tuan by estimating the fair value of its 49.8% interest in E-Commerce at the time of the transaction and comparing the estimated fair value of the consideration transferred, including the additional $25.0 million of cash consideration, to the estimated fair value of the investments in F-tuan that were received.

In January 2013, the Company obtained updated financial projections from F-tuan, as well as their operating results for the year ended December 31, 2012. The investee's operating loss for the year-ended December 31, 2012 was lower than the loss that was forecasted in June 2012 at the time of the Company's investment, primarily due to lower-than-forecasted operating expenses. However, the investee's 2012 revenues were lower than the adjusted financial projections used at the time of the Company's investment and the updated financial projections provided by the investee at year-end indicated significant declines in forecasted revenues in future years, as compared to the adjusted financial projections used at the time of the Company's investment, due to reduced gross billings and deal margin forecasts. As of December 31, 2012, the Company continued to apply a discounted cash flow approach, corroborated by a market approach, to estimate the fair value of the investments in F-tuan. For the December 31, 2012 fair value measurements, the Company used the updated financial projections and a discount rate of 30%. The increase to the discount rate as compared to the acquisition-date fair value measurement was primarily attributable to an increase in the entity-specific risk premium to reflect the Company's assessment of the riskiness of this investment. The resulting fair value measurements of the investments in F-tuan totaled $77.5 million as of December 31, 2012, a $50.6 million reduction from the $128.1 million acquisition-date fair value measurement in June 2012.

The Company's evaluation of other-than-temporary impairments involves consideration of qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Although the Company's investments in F-tuan had not been in an unrealized loss position for an extended period of time as of December 31, 2012 and there were no plans to dispose of the investments at that time, the Company concluded that the impairment was other-than-temporary due to the significant declines in forecasted revenue growth and the severity of the unrealized loss.

The $85.5 million and $50.6 million other-than-temporary impairments of its investments in F-tuan are reported within "Other expense, net" on the consolidated statements of operations for the years ended December 31, 2013 and 2012, respectively.

The Company also recorded an additional $1.2 million other-than-temporary impairment of an equity method investment in a nonpublic entity, which is reported within "Other expense, net" on the consolidated statement of operations for the year ended December 31, 2012.

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7. SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION

The following table summarizes the Company's other expense, net for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Interest income	$	1,564		$	1,721		$	2,522
Interest expense	(907		)	(291		)	—
Gain on E-Commerce transaction	—			—			56,032
Impairments of investments	(2,036		)	(85,925		)	(50,553		)
Loss on equity method investments	(459		)	(44		)	(9,925		)
Foreign exchange (losses) gains, net	(31,526		)	(10,271		)	1,403
Other	11			147			(3,238		)
Other expense, net	$	(33,353	)	$	(94,663	)	$	(3,759	)

The following table summarizes the Company's prepaid expenses and other current assets as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Current portion of unamortized tax effects on intercompany transactions	$	14,193	$	28,502
Finished goods inventories	57,134		57,097
Prepaid expenses	42,231		29,404
Restricted cash	12,019		14,579
Income taxes receivable	41,788		39,994
VAT receivable	17,746		12,966
Prepaid marketing	7,443		17,301
Other	15,437		10,572
Total prepaid expenses and other current assets	$	207,991	$	210,415

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The following table summarizes the Company's accrued merchant and supplier payables as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Accrued merchant payables	$	632,605	$	518,233
Accrued supplier payables(1)	277,962		234,710
Total accrued merchant and supplier payables	$	910,567	$	752,943

(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 December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Marketing	$	15,962	$	12,001
Refunds reserve	33,238		38,597
Payroll and benefits	65,743		64,966
Customer credits	44,463		44,728
Professional fees	14,292		18,906
Other	56,654		47,788
Total accrued expenses	$	230,352	$	226,986

The following table summarizes the Company's other current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Income taxes payable	$	14,461	$	21,994
VAT payable	33,436		37,627
Sales taxes payable	9,042		10,412
Deferred revenue	43,903		47,259
Capital lease obligations	14,872		3,636
Other	14,598		11,790
Total other current liabilities	$	130,312	$	132,718

The following table summarizes the Company's other non-current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Long-term tax liabilities	$	82,138	$	109,286
Deferred rent	13,200		9,148
Capital lease obligations	23,387		5,665
Other	17,559		7,598
Total other non-current liabilities	$	136,284	$	131,697

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The following table summarizes the components of accumulated other comprehensive income, net of tax, as of December 31, 2014, 2013 and 2012 (in thousands):

	Foreign currency translation adjustments		Unrealized loss on available-for-sale securities			Pension liability adjustment			Total
Balance as of December 31, 2012	$	12,393	$	53		$	—		$	12,446
Other comprehensive income	12,559		(175		)	—			12,384
Balance as of December 31, 2013	24,952		(122		)	—			24,830
Other comprehensive income (loss) before reclassification adjustments	11,812		(210		)	(1,500		)	10,102
Reclassification adjustment for impairment included in net loss	—		831			—			831
Other comprehensive income (loss)	11,812		621			(1,500		)	10,933
Balance as of December 31, 2014	$	36,764	$	499		$	(1,500	)	$	35,763

The effects of amounts reclassified from accumulated other comprehensive income to net loss for the years endedDecember 31, 2014, 2013 and 2012 are presented within the following line items in the consolidated statements of operations (in thousands):

	Year Ended December 31,							Consolidated Statements of Operations Line Item
	2014			2013		2012
Other-than-temporary impairment of available-for-sale security	$	1,340		$	—	$	—	Other expense, net
Less: Tax effect	(509		)	—		—		Provision for income taxes
Reclassification adjustment	$	831		$	—	$	—

8. COMMITMENTS AND CONTINGENCIES

Leases

The Company has entered into various non-cancelable lease agreements, primarily operating leases covering its offices throughout the world, with remaining lease periods expiring between 2015 and 2024. Rent expense under operating leases was $55.0 million, $42.3 million and $43.1 million for the years ended December 31, 2014, 2013 and 2012, respectively.

The Company has lease arrangements for its headquarters located in Chicago, Illinois ("600 West Leases"), which account for 14% of its estimated future payments under operating leases as of December 31, 2014. The 600 West Leases are accounted for as operating leases with rent expense being recognized on a straight-line basis over the term of the lease, taking into account rent escalations and lease incentives. Rent escalations are annual and do not exceed 9% per year with a majority of the increases being approximately 2% per year. The initial durations of the 600 West Leases range from five to seven years, with renewal and expansion options ranging from one to five years. The amortization period of leasehold improvements related to the 600 West Leases is five years.

The Company is responsible for paying its proportionate share of specified operating expenses and real estate taxes under certain of its lease agreements. These operating expenses are not included in the table below.

Certain of the Company's computer equipment has been acquired under capital lease agreements, and estimated future payments under these capital lease agreements is included in the table below. As of December 31, 2014, the estimated future payments under operating leases and capital leases for each of the next five years and thereafter is as follows (in thousands):

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	Capital Leases			Operating leases
2015	$	14,936		$	53,776
2016	14,136			49,094
2017	9,424			38,628
2018	697			27,659
2019	522			11,455
Thereafter	—			21,514
Total minimum lease payments	39,715			$	202,126
Less: Amount representing interest	(1,456		)
Present value of net minimum capital lease payments	38,259
Less: Current portion of capital lease obligations	(14,872		)
Total long-term capital lease obligations	$	23,387

Purchase Obligations

The Company has entered into non-cancelable arrangements with third-parties, primarily related to information technology products and services. As of December 31, 2014, future payments under these contractual obligations were as follows (in thousands):

2015	$	33,636
2016	21,922
2017	5,730
2018	8
2019	4
Thereafter	—
Total purchase obligations	$	61,300

Legal Matters and Other Contingencies

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 by stockholders, former employees and merchants, intellectual property infringement suits and suits by customers (individually or as class actions) alleging, among other things, violation of the Credit Card Accountability, Responsibility and Disclosure Act and state laws governing gift cards, stored value cards and coupons. Additionally, the Company is subject to general customer complaints seeking monetary damages, particularly in its Rest of World segment. 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 and 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

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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 class action 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 23, 2014, the court entered an order granting plaintiff's motion for class certification. The Company has filed a petition for leave to appeal that order in the United States Court of Appeals for the Seventh Circuit. The Seventh Circuit is holding that motion in order to allow the district court to first have the opportunity to address defendants' motion to exclude the opinions and testimony of the plaintiff's proposed market efficiency expert. On December 19, 2014, defendants filed their opening brief with respect to this motion.  On January 8, 2015, the plaintiff filed a response brief, to which the defendants filed a reply brief on January 20, 2015.

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 actions.  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 actions.  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 class. Following entry of the 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 into a single case in the U.S. District Court for the Southern District of California.  The consolidated case is 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.  Because the case had been filed as a class action, the parties were required to provide proper notice and obtain court approval for the settlement. During that process, certain individuals asserted various objections to the settlement.  The parties to the case opposed the objections and on December 14, 2012, the district court approved the settlement over the various objections.

Subsequent to the entry of the order approving settlement, certain of the objectors filed a notice of appeal, contesting the settlement and appealing the matter to the United States Court of Appeals for the Ninth Circuit, where the case remains pending.  The Company believes that the settlement is valid and intends to oppose the appeal.  Plaintiffs also maintain that the settlement is valid and will be opposing the appeal.  The settlement, however, is not effective during the pendency of the appeal.  The Company does not know when the appeal will be resolved.  Depending on the outcome of the appeal, it is possible that the settlement will

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be rejected, or that there will be further proceedings in the appellate court or district court, or that the settlement will be enforced at that time without further objections or proceedings.

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, 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 several of these claims are currently pending. 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.

During the fourth quarter of 2014, two foreign tax authorities issued assessments totaling $46.5 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 is 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.

Indemnifications

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

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agreements with its officers and directors, 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.

9. REVOLVING CREDIT AGREEMENT

In August 2014, the Company entered into a three-year senior secured revolving credit agreement (the "Credit Agreement") that provides for aggregate principal borrowings of up to $250.0 million. Borrowings under the Credit Agreement bear interest, at the Company's option, at a rate per annum equal to the Alternate Base Rate or Adjusted LIBO Rate (each as defined in the Credit Agreement) plus an additional margin ranging between 0.25% and 2.00%. The Company is required to pay quarterly commitment fees ranging from 0.20% to 0.35% per annum of the average daily amount available under the Credit Agreement. The Credit Agreement also provides for the issuance of up to $45.0 million in letters of credit, provided that the sum of outstanding borrowings and letters of credit do not exceed the maximum funding commitment of $250.0 million.

The Credit Agreement is secured by substantially all of the Company's and its subsidiaries' tangible and intangible assets, including a pledge of 100% of the outstanding capital stock of substantially all of its direct and indirect domestic subsidiaries and 65% of the shares or equity interests of first-tier foreign subsidiaries and each U.S. entity whose assets substantially consist of capital stock and/or intercompany debt of one or more foreign subsidiaries, subject to certain exceptions. Certain of the Company's domestic subsidiaries are guarantors under the Credit Agreement.

The Credit Agreement contains various customary restrictive covenants that limit the Company's ability to, among other things: incur additional indebtedness; enter into sale or leaseback transactions; make investments, loans or advances; grant or incur liens on assets; sell assets; engage in mergers, consolidations, liquidations or dissolutions; engage in transactions with affiliates; and make dividend payments. The Credit Agreement requires the Company to maintain compliance with specified financial covenants, comprised of a minimum fixed charge coverage ratio, a maximum leverage ratio, and a minimum liquidity ratio, each as set forth in the Credit Agreement. The Company is also required to maintain, as of the last day of each fiscal quarter, unrestricted cash of at least $400.0 million, including $200.0 million in accounts held with lenders under the Credit Agreement or their affiliates. Non-compliance with these covenants may result in termination of the commitments under the Credit Agreement and any then outstanding borrowings may be declared due and payable immediately. The Company has the right to terminate the Credit Agreement or reduce the available commitments at any time.

As of December 31, 2014, the Company had no borrowings or letters of credit outstanding under the Credit Agreement and was in compliance with all covenants.

10. STOCKHOLDERS' EQUITY

Preferred Stock

The Company's Board of Directors ("the Board") has the authority, without approval by the stockholders, to issue up to a total of 50,000,000 shares of preferred stock in one or more series. The Board may establish the number of shares to be included in each such series and may fix the designations, preferences, powers and other rights of the shares of a series of preferred stock. The Board could authorize the issuance of preferred stock with voting or conversion rights that could dilute the voting power or rights of the holders of the Class A common stock or Class B common stock. As of December 31, 2014 and 2013, there were no shares of preferred stock outstanding.

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

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stock, the rights, preferences and privileges of which may be designated from time to time by the Board.

Holders of Class A common stock and Class B common stock have identical rights, except that holders of Class A common stock are entitled to one vote per share and holders of Class B common stock are entitled to 150 votes per share. Holders of shares of Class A common stock and Class B common stock will vote together as a single class on all matters (including the election of directors) submitted to a vote of stockholders, except that there will be separate votes of holders of shares of the Class A common stock and Class B common stock in the following circumstances:

• if the Company proposes to amend its certificate of incorporation to alter or change the powers, preferences or special rights of the shares of a class of its stock so as to affect them adversely or to increase or decrease the par value of the shares of a class of the Company's stock;

• if the Company proposes to treat the shares of a class of its stock differently with respect to any dividend or distribution of cash, property or shares of the Company's stock paid or distributed by the Company;

• if the Company proposes to treat the shares of a class of its stock differently with respect to any subdivision or combination of the shares of a class of the Company's stock; or

• if the Company proposes to treat the shares of a class of its stock differently in connection with a change in control, liquidation, dissolution, distribution of assets or winding down of the Company with respect to any consideration into which the shares are converted or any consideration paid or otherwise distributed to its stockholders.

The Company may not increase or decrease the authorized number of shares of Class A common stock or Class B common stock without the affirmative vote of the holders of a majority of the combined voting power of the outstanding shares of Class A common stock and Class B common stock, voting together as a single class. In addition, the Company may not issue any shares of Class B common stock, other than in connection with stock dividends, stock splits and similar transactions, unless that issuance is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class B common stock. There is no cumulative voting for the election of directors.

Except as otherwise expressly provided in the Company's certificate of incorporation or as required by applicable law, shares of Class A common stock and Class B common stock will have the same rights and privileges and rank equally, share ratably and be identical in all respects as to all matters, including, without limitation, those described below.

Subject to preferences that may apply to any shares of preferred stock outstanding at the time, the holders of Class A common stock and Class B common stock shall be entitled to share equally, ratably and identically, on a per share basis, with respect to any dividends that the Board may determine to issue from time to time, unless different treatment of the shares of such class is approved by the affirmative vote of the holders of the majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class. In the event a dividend is paid in the form of shares of common stock or rights to acquire shares of common stock, the holders of Class A common stock will receive shares of Class A common stock, or rights to acquire shares of Class A common stock, as the case may be, and the holders of Class B common stock will receive shares of Class B common stock, or rights to acquire shares of Class B common stock, as the case may be.

Upon liquidation, dissolution or winding-up of the Company, the holders of Class A common stock and Class B common stock will be entitled to share equally, ratably and identically in all assets remaining after the payment of any liabilities and the liquidation preferences on any outstanding preferred stock, unless different treatment of the shares of such class is approved by the affirmative vote of the holders of the majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

Upon (i) the closing of the sale, transfer or other disposition of all or substantially all of our assets, (ii) the consummation of a merger, consolidation, business combination or other similar transaction which results in our voting securities outstanding immediately prior to the transaction (or the voting securities issued with respect to our voting securities outstanding immediately prior to the transaction) representing less than a majority of the combined voting power and outstanding capital stock of the voting securities of the Company or the surviving or acquiring entity, (iii) the recapitalization, liquidation, dissolution or other similar transaction which results in the voting securities outstanding immediately prior to the transaction representing less than a majority of the combined voting power and outstanding capital stock of the Company or the surviving entity or parent entity or (iv) an issuance by the Company, in one transaction or a series of related transactions, of voting securities representing more than 2% of

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the total voting power of the Company (assuming the Class A common stock and Class B common stock each have one vote per share) to any person or group of affiliated persons who prior to such issuance held less than a majority of the total voting power of the Company (assuming the Class A common stock and Class B common stock each have one vote per share) and who subsequent to the issuance would hold a majority of the total voting power, the holders of Class A common stock and Class B common stock will be treated equally and identically with respect to shares of Class A common stock or Class B common stock owned by them, unless different treatment of the shares of each class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

If the Company subdivides or combines in any manner outstanding shares of Class A common stock or Class B common stock, the outstanding shares of the other class will be subdivided or combined in the same manner, unless different treatment of the shares of each class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

Share Repurchase Program

The Board has authorized the Company to purchase up to $300.0 million of its outstanding Class A common stock through August 2015. The timing and amount of any share repurchases is determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time. During the years ended December 31, 2014 and 2013, the Company purchased 22,806,304 and 4,432,800 shares of Class A common stock, respectively, for an aggregate purchase price of $151.9 million and $46.6 million (including fees and commissions), respectively, under the share repurchase program. As of December 31, 2014, up to $101.5 million of Class A common stock remains available for repurchase under the share repurchase program.

11. COMPENSATION ARRANGEMENTS

Groupon, Inc. Stock Plans

In January 2008, the Company adopted the ThePoint.com 2008 Stock Option Plan, as amended (the "2008 Plan"), under which options for up to 64,618,500 shares of common stock were authorized to be issued to employees, consultants and directors of ThePoint.com, which is now the Company. In April 2010, the Company established the Groupon, Inc. 2010 Stock Plan, as amended in April 2011 (the "2010 Plan"), under which options and restricted stock units ("RSUs") for up to 20,000,000 shares of common stock were authorized for future issuance to employees, consultants and directors of the Company. In August 2011, the Company established the Groupon, Inc. 2011 Stock Plan (the "2011 Plan"), under which options, RSUs and performance stock units for up to 50,000,000 shares of common stock were authorized for future issuance to employees, consultants and directors of the Company.

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 December 31, 2014, 44,043,631 shares were available for future issuance under the Plans. Prior to January 2008, the Company issued stock options and RSUs that are governed by employment agreements, some of which are still outstanding.

The Company recognized stock-based compensation expense of $122.0 million, $121.5 million and $104.1 million for the years endedDecember 31, 2014, 2013 and 2012, respectively, related to stock awards issued under the Plans, acquisition-related awards and subsidiary awards. The Company also capitalized $11.2 million, $9.1 million and $9.7 million of stock-based compensation for the years ended December 31, 2014, 2013 and 2012, respectively, in connection with internally-developed software.

As of December 31, 2014, a total of $221.7 million of unrecognized compensation costs related to unvested 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 years endedDecember 31, 2014 and 2013, 857,171 and 774,288 shares of common stock were issued under the ESPP, respectively. No shares of common stock were issued under the ESPP for the year ended December 31, 2012.

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Stock Options

The exercise price of stock options granted is equal to the fair value of the underlying stock on the date of grant. The contractual term for stock options expires ten years from the grant date. Stock options generally vest over a three or four-year period, with 25% of the awards vesting after one year and the remainder of the awards vesting on a monthly or quarterly basis thereafter. The fair value of stock options on the date of grant is amortized on a straight-line basis over the requisite service period.

The table below summarizes the stock option activity for the year ended December 31, 2014:

	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands) (1)
Outstanding at December 31, 2013	3,355,054		$	1.11	6.04	$	35,742
Exercised	(1,029,471	)	$	1.09
Forfeited	(62,589	)	$	2.41
Outstanding at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226
Exercisable at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226

(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 December 31, 2014 and 2013, respectively.

The fair value of stock options granted was estimated on the date of grant using the Black-Scholes-Merton option-pricing model. Expected volatility was based on historical volatilities for publicly-traded options of comparable companies over the estimated expected life of the stock options. The expected term represents the period of time the stock options are expected to be outstanding and was based on the "simplified method." The Company used the "simplified method" due to the lack of sufficient historical exercise data to provide a reasonable basis upon which to otherwise estimate the expected life of the stock options. The risk-free interest rate was based on yields on U.S. Treasury STRIPS with a maturity similar to the estimated expected life of the stock options.

The Company did not grant any stock options during the years ended December 31, 2014, 2013 and 2012. The total intrinsic value of options that were exercised during the years ended December 31, 2014, 2013 and 2012 was $6.5 million, $30.0 million and $75.2 million, 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.

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The table below summarizes activity regarding unvested restricted stock units under the Plans for the year ended December 31, 2014:

	Restricted Stock Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	41,648,055		$	8.06
Granted	29,568,490		$	7.59
Vested	(17,323,096	)	$	8.07
Forfeited	(12,555,522	)	$	7.96
Unvested at December 31, 2014	41,337,927		$	7.78

The weighted-average grant date fair value of restricted stock units granted in 2013 and 2012 was $7.23 and $8.99, respectively. The fair value of restricted stock units that vested during each of the three years ended December 31, 2014, 2013 and 2012 was $139.8 million, $126.5 million and $50.2 million, respectively.

Performance Share Units

The Company completed its acquisition of Ticket Monster on January 2, 2014, as described in Note 3 "Business Combinations and Acquisitions of Noncontrolling Interests," 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 is 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 is 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. For the performance period ending December 31, 2014, 0.8 million performance share units were forfeited because the performance conditions were not met.

The table below summarizes activity regarding unvested performance share units for the year ended December 31, 2014:    

	Performance Share Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	—		$	—
Granted	1,983,232		$	8.07
Vested	—		$	—
Forfeited	(967,388	)	$	8.07
Unvested at December 31, 2014	1,015,844		$	8.07

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 year ended December 31, 2014:

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	Restricted Stock Awards		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	97,677		$	14.00
Granted	—		$	—
Vested	(50,481	)	$	14.54
Forfeited	(13,129	)	$	17.07
Unvested at December 31, 2014	34,067		$	15.53

The fair value of restricted stock that vested during the years ended December 31, 2014, 2013 and 2012 was $0.7 million, $4.1 million and $10.2 million, respectively.

Subsidiary Awards

The Company made several acquisitions during the years ended December 31, 2011 and 2010 in which the selling shareholders of the acquired companies were granted RSUs and stock options in the Company's subsidiaries ("subsidiary awards"). These subsidiary awards were issued in conjunction with the acquisitions as a way to retain and motivate key employees. They generally vested on a quarterly basis for a period of three or four years, and were potentially dilutive to the Company's ownership percentage of the corresponding subsidiaries. A significant portion of the subsidiary awards were classified as liabilities on the consolidated balance sheets due to the existence of put rights that allowed the selling shareholders to put their stock back to the Company. The liabilities for the subsidiary awards were remeasured on a quarterly basis, with the offset to stock-based compensation expense within "Selling, general and administrative" on the consolidated statements of operations. The Company modified its liability-classified subsidiary awards in 2012 by paying $17.0 million in cash and issuing 660,539 shares of the Company's common stock to settle the vested portion and providing for future settlement of the unvested portion in cash or shares of the Company's common stock upon completion of the requisite service period. See Purchases of Additional Interests in Consolidated Subsidiaries in Note 3 "Business Combinations and Acquisitions of Noncontrolling Interests."

Swiss Pension Plan

The Company maintains a pension plan covering employees in Switzerland pursuant to the requirements of Swiss pension law. Contributions to the Swiss pension plan are paid by the employees and the employer. Certain features of the plan require it to be categorized as a defined benefit plan under U.S. GAAP. These features include a minimum interest guarantee on retirement savings accounts, a pre-determined factor for converting accumulated savings account balances into a pension, and death and disability benefits. The projected benefit obligation and net unfunded pension liability were $4.9 million and $2.0 million, respectively, as of December 31, 2014 and the net periodic pension cost was $0.6 million for the year then ended.

12. INCOME TAXES

The components of pretax (loss) income for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
United States	$	(20,057	)	$	62,021		$	88,638
International	(28,138		)	(80,930		)	6,304
(Loss) income before provision for income taxes	$	(48,195	)	$	(18,909	)	$	94,942

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The provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 consisted of the following components (in thousands):

	Year Ended December 31,
	2014			2013			2012
Current taxes:
U.S. federal	$	(3,518	)	$	22,321		$	41,551
State	69			1,693			4,778
International	30,279			64,078			107,295
Total current taxes	26,830			88,092			153,624
Deferred taxes:
U.S. federal	(5,132		)	4,675			(2,977		)
State	(742		)	(5,687		)	(236		)
International	(5,232		)	(17,043		)	(4,438		)
Total deferred taxes	(11,106		)	(18,055		)	(7,651		)
Provision for income taxes	$	15,724		$	70,037		$	145,973

The items accounting for differences between the income tax provision or benefit computed at the federal statutory rate and the provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 were as follows:

	Year Ended December 31,
	2014			2013			2012
U.S. federal income tax (benefit) provision at statutory rate	$	(16,868	)	$	(6,618	)	$	33,230
Foreign income and losses taxed at different rates	4,815			14,299			10,565
Unrecognized tax benefits on E-Commerce transaction	—			—			17,404
State income taxes, net of federal benefits and state tax credits	(10,051		)	(5,361		)	3,965
Change in valuation allowances	23,515			24,404			29,249
Effect of foreign and state rate changes on deferred items	178			837			(487		)
Tax effects of intercompany transactions(1)	13,098			35,158			31,011
Non-deductible stock-based compensation expense	6,503			9,000			14,641
Federal research and development credits	(4,693		)	(4,650		)	—
Non-deductible or non-taxable items	(773		)	2,968			6,395
Provision for income taxes	$	15,724		$	70,037		$	145,973

(1) Includes a tax benefit of $24.4 million for the year ended December 31, 2014 resulting from decreases in the Company's liabilities for uncertain tax positions.

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The deferred income tax assets and liabilities consisted of the following components as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014			2013
Deferred tax assets:
Reserves and allowances	$	32,379		$	65,356
Stock-based compensation	6,911			13,462
Net operating loss and tax credit carryforwards	221,674			152,271
Intangible assets, net	11,910			30,039
Investments	1,441			3,730
Unrealized foreign exchange losses	5,011			—
Other	2,610			1,692
Total deferred tax assets	281,936			266,550
Less valuation allowances	(205,486		)	(173,577		)
Deferred tax assets, net of valuation allowance	76,450			92,973
Deferred tax liabilities:
Unrealized foreign exchange gains	—			(3,034		)
Prepaid expenses and other assets	(1,455		)	(1,078		)
Property, equipment and software, net	(25,159		)	(19,239		)
Deferred revenue	(25,013		)	(64,154		)
Total deferred tax liabilities	(51,627		)	(87,505		)
Net deferred tax asset	$	24,823		$	5,468

The Company regularly reviews deferred tax assets to assess whether it is more likely than not that the deferred tax assets will be realized and, if necessary, establishes a valuation allowance for portions of such assets to reduce the carrying value. For purposes of assessing whether it is more likely than not that the Company's deferred tax assets will be realized, the Company considers the following four sources of taxable income for each tax jurisdiction: (a) future reversals of existing taxable temporary differences, (b) projected future earnings, (c) taxable income in carryback years, to the extent that carrybacks are permitted under the tax laws of the applicable jurisdiction, and (d) tax planning strategies, which represent prudent and feasible actions that a company ordinarily might not take, but would take to prevent an operating loss or tax credit carryforward from expiring unused. The Company has incurred significant losses in recent years and had accumulated deficits of $922.0 million and $848.9 million as of December 31, 2014 and 2013, respectively. A cumulative loss in the most recent three-year period is a significant piece of negative evidence that is difficult to overcome when assessing the realizability of deferred tax assets. The Company has only recognized deferred tax assets to the extent that they will be realizable either through future reversals of existing taxable temporary differences, through taxable income in carryback years for the applicable jurisdictions or based on projections of future income for those jurisdictions in a cumulative income position for the most recent three-year period. During the fourth quarter of 2013, earnings in the United States moved to a cumulative income position for the most recent three-year period and the Company released a portion of the valuation allowance against its federal and state deferred tax assets, resulting in a $9.6 million reduction to income tax expense. The Company continues to maintain a valuation allowance in the United States against a portion of its acquired domestic federal net operating losses that are subject to limitations under the tax law and state net operating loss carryforwards and tax credits that are not expected to be realized. As of December 31, 2014 and 2013, the Company recorded a valuation allowance of $205.5 million and $173.6 million, respectively, against its domestic and foreign net deferred tax assets, as it believes it is more likely than not that these benefits will not be realized.

The Company had $121.2 million of federal and $270.5 million of state net operating loss carryforwards as of December 31, 2014 which will begin expiring in 2027 and 2016, respectively. As of December 31, 2014, the Company had $714.9 million of foreign net operating loss carryforwards, a significant portion of which carry forward for an indefinite period.

The Company is subject to taxation in the United States, state jurisdictions and foreign jurisdictions. Significant judgment

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is required in determining the worldwide provision for income taxes and recording the related income tax assets and liabilities. The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not criterion, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate settlement with the relevant tax authority.

The following table summarizes activity related to the Company's gross unrecognized tax benefits, excluding interest and penalties, from January 1 to December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Beginning Balance	$	110,305		$	85,481		$	55,127
Increases related to prior year tax positions	5,489			10,494			602
Decreases related to prior year tax positions	(27,875		)	(2,103		)	(790		)
Increases related to current year tax positions	17,348			14,565			29,465
Foreign currency translation	(6,946		)	1,868			1,077
Ending Balance	$	98,321		$	110,305		$	85,481

The total amount of unrecognized tax benefits as of December 31, 2014, 2013 and 2012 that, if recognized, would affect the effective tax rate are $72.3 million, $80.0 million, and $39.3 million, respectively.

The Company recognized $1.1 million, $3.3 million and $2.3 million of interest and penalties within "Provision for income taxes" on its consolidated statements of operations for the years ended December 31, 2014, 2013 and 2012, respectively. Total accrued interest and penalties as of December 31, 2014 and 2013 was $5.7 million and $5.3 million, respectively, and were included in "Other non-current liabilities."

The Company is currently under IRS audit for the 2011 and 2012 tax years. Additionally, the Company is currently under audit by several foreign jurisdictions. It is likely that the examination phase of some of these audits will conclude in the next 12 months. The tax years 2009 to 2013 remain open to examination by the major taxing jurisdictions in which the Company is subject to tax. For the year ended December 31, 2014, the Company decreased its liabilities for uncertain tax positions and income tax expense by $21.0 million and $16.7 million, respectively, due to the expiration of the applicable statute of limitations in a foreign jurisdiction. For the year ended December 31, 2014, the Company also decreased its liabilities for uncertain tax positions and income tax expense by $7.7 million as a result of new information that impacted its estimate of the amount that is more-likely-than-not of being realized upon ultimate settlement of a tax position. As of December 31, 2014, the Company believes that it is reasonably possible that additional changes of up to $15.6 million in unrecognized tax benefits may occur within the next 12 months.

In general, it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. As of December 31, 2014, no provision has been made for U.S. income taxes and foreign withholding taxes related to the undistributed earnings of the Company's foreign subsidiaries of approximately $271.1 million, because those undistributed earnings are indefinitely reinvested outside the United States. The actual U.S. tax cost would depend on income tax laws and circumstances at the time of distribution. Determination of the amount of unrecognized U.S. deferred tax liability related to the undistributed earnings of the Company's foreign subsidiaries is not practical due to the complexities associated with the calculation.

As of December 31, 2014, the unamortized tax effects of intercompany transactions of $14.2 million is included within "Prepaid expenses and other current assets" on the consolidated balance sheet. As of December 31, 2013, unamortized tax effects of intercompany transactions of $28.5 million and $20.4 million are included within "Prepaid expenses and other current assets" and "Other non-current assets," respectively, on the consolidated balance sheet. As of December 31, 2014, the estimated future amortization of the tax effects of intercompany transactions to income tax expense is $14.2 million for 2015. This amount excludes 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.

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13. VARIABLE INTEREST ENTITY

The Company entered into a collaborative arrangement to create a jointly-owned sales category with a strategic partner ("Partner"), and a limited liability company ("LLC") was established in 2011. The Company and its Partner each owns 50% of the LLC, and income and cash flows of the LLC are allocated based on agreed upon percentages between the Company and the Partner. The liabilities of the LLC are solely the LLC's obligations and are not obligations of the Company or the Partner.

The Company's obligations associated with its interests in the LLC are primarily building, maintaining, customizing, managing and operating the website, contributing intellectual property, identifying deals and promoting the sale of deal vouchers, coordinating the fulfillment of deal vouchers in certain instances and providing the record keeping.

Under the LLC agreement, the LLC shall be dissolved upon the occurrence of any of the following events: (1) either party becoming a majority owner; (2) the third anniversary of the date of the LLC agreement; (3) certain elections of the Company or the Partner based on the operational and financial performance of the LLC or other changes to certain terms in the agreement; (4) election of either the Company or the Partner in the event of bankruptcy by the other party; (5) sale of the LLC; or (6) a court's dissolution of the LLC. The LLC agreement was subsequently amended to extend the contractual dissolution date to May 2016.

Variable interest entities ("VIEs") are entities that have either a total equity investment that is insufficient to permit the entity to finance its activities without additional subordinated financial support, or whose equity investors lack the characteristics of a controlling financial interest (i.e., the ability to make significant decisions through voting rights and the right to receive the expected residual returns of the entity or the obligation to absorb the expected losses of the entity). A variable interest holder that has both (a) the power to direct the activities of the VIE that most significantly impact its economic performance and (b) either an obligation to absorb losses or a right to receive benefits that could potentially be significant to the VIE is referred to as the primary beneficiary and must consolidate the VIE.

The Company has determined that the LLC is a VIE and the Company is its primary beneficiary. The Company consolidates the LLC because it has the power to direct the activities of the LLC that most significantly impact the LLC's economic performance. In particular, the Company identifies and promotes the deal vouchers, provides all of the back office support (i.e. website, contracts, personnel resources, accounting, etc.), presents the LLC's deal offerings via the Company's website, mobile application and email and provides the editorial resources that create the verbiage included on the website with the LLC's deal offers.

14. 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 - 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

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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.

The Company has classified its investments in available-for-sale securities 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, 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 or shares to the former owners of acquired businesses if specified financial results are met over future reporting periods (i.e. earn-outs). The Company also has a contingent obligation to transfer up to $1.1 million of cash or shares to the former owners of an acquired business if the Company's share price is less than $6.48 per share on June 8, 2015. 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 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. The Company uses a Black-Scholes-Merton option pricing model to value the contingent consideration obligation that is payable upon declines in the Company's share price. Increases in volatility and decreases in the Company's share price contribute to the increases in the fair value of that contingent consideration liability. Conversely, decreases in volatility and increases in the Company's share price contribute to decreases in the fair value of the contingent consideration liability. Changes in assumptions could have an impact on the payout of contingent consideration arrangements with a maximum payout of $8.4 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	December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
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

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	585,514	$	585,514	$	—	$	—
Available-for-sale securities:
Convertible debt securities	3,174		—		—		3,174
Redeemable preferred shares	—		—		—		—
Liabilities:
Contingent consideration	606		—		—		606

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table provides a roll-forward of the fair value of recurring Level 3 fair value measurements for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Assets
Available-for-sale securities
Convertible debt securities:
Beginning Balance	$	3,174		$	3,087		$	—
Purchases of convertible debt securities	—			370			3,000
Total gains (losses) included in other comprehensive income	693			(283		)	87
Total gains (losses) included in other expense, net	(1,340		)	—			—
Ending Balance	$	2,527		$	3,174		$	3,087
Unrealized (losses) gains still held(1)	$	(647	)	$	(283	)	$	87
Redeemable preferred shares:
Beginning Balance	$	—		$	42,539		$	—
Acquisitions of preferred shares in exchange transactions (See note 6)	—			34,982			56,940
Purchase of redeemable preferred shares	4,599			8,000			—
Total gains included in other comprehensive income	311			—			—
Other-than-temporary impairments included in earnings	—			(85,521		)	(14,401		)
Ending Balance	$	4,910		$	—		$	42,539
Unrealized (losses) gains still held(1)	$	311		$	(85,521	)	$	(14,401	)
Liabilities
Contingent Consideration:
Beginning Balance	$	606		$	7,601		$	11,230
Issuance of contingent consideration in connection with acquisitions	4,388			3,567			3,400
Settlements of contingent consideration liabilities	(424		)	(4,377		)	(4,936		)
Reclass to non-fair value liabilities when no longer contingent	(143		)	(3,014		)	(4,978		)
Total (gains) losses included in earnings(2)	(2,444		)	(3,171		)	897
Reclass of contingent consideration from Level 2 to Level 3	—			—			1,988
Ending Balance	$	1,983		$	606		$	7,601
Unrealized (gains) losses still held(1)	$	(2,405	)	$	360		$	211

(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 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 years endedDecember 31, 2014 and 2013. The following table summarizes the Company's assets that were measured at fair value on a nonrecurring basis as of December 31, 2012 (in thousands):

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset impairments:
Cost method investment in Life Media Limited (F-tuan) common shares	$	34,982	$	—	$	—	$	34,982
Equity method investment	$	495	$	—	$	—	$	495

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):

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cost method investments	$	15,630	$	16,134	$	15,788	$	15,573

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 December 31, 2014 and 2013 due to their short term nature.

15. LOSS PER SHARE OF CLASS A AND CLASS B COMMON STOCK

The Company computes loss per share of Class A and Class B common stock using the two-class method. Basic loss per share is computed using the weighted-average number of common shares outstanding during the period. Diluted 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, performance share units and ESPP shares. The dilutive effect of these equity awards are reflected in diluted loss per share by application of the treasury stock method. The computation of the diluted loss per share of Class A common stock assumes the conversion of Class B common stock, if dilutive, while the diluted 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 loss per share of Class A common stock, the undistributed earnings are equal to net income for that computation.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table sets forth the computation of basic and diluted loss per share of Class A and Class B common stock for the years endedDecember 31, 2014, 2013 and 2012 (in thousands, except share amounts and per share amounts):

	Year Ended December 31,
	2014						2013						2012
	Class A			Class B			Class A			Class B			Class A			Class B
Basic loss per share:
Numerator
Allocation of net loss	$	(63,691	)	$	(228	)	$	(88,626	)	$	(320	)	$	(50,842	)	$	(189	)
Less: Allocation of adjustment of redeemable noncontrolling interests to redemption value	—			—			—			—			12,557			47
Less: Allocation of net income attributable to noncontrolling interests	9,138			33			6,424			23			3,728			14
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Basic loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)
Diluted loss per share:
Numerator
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B(1)	—			—			—			—			—			—
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding used in basic computation	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Conversion of Class B(1)	—			—			—			—			—			—
Employee stock options(1)	—			—			—			—			—			—
Restricted shares and RSUs(1)	—			—			—			—			—			—
Weighted-average diluted shares outstanding(1)	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Diluted loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)

(1) Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted loss per share calculation for the years endedDecember 31, 2014, 2013 and 2012 because the effect would be antidilutive.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following outstanding equity awards are not included in the diluted loss per share calculation above because they would have had an antidilutive effect:

	Year Ended December 31,
	2014	2013	2012
Stock options	2,775,771	5,594,033	7,713,421
Restricted stock units	42,341,320	39,618,897	29,699,348
Restricted stock	52,854	298,292	577,048
ESPP shares	507,916	444,439	271,402
Total	45,677,861	45,955,661	38,261,219

In addition to the antidilutive awards as set forth in the table above, the Company also granted approximately 2,000,000 performance share units in connection with its acquisition of Ticket Monster during the year endedDecember 31, 2014. Contingently issuable shares are excluded from the computation of diluted EPS if, based on current period results, the shares would not be issuable if the end of the reporting period were the end of the contingency period. These outstanding performance share units have been excluded from the table above for the year endedDecember 31, 2014 as the performance conditions were not satisfied as of the end of the period.

16. SEGMENT INFORMATION

The company organizes its operations intothreesegments: North America, EMEA, which is comprised of Europe, Middle East and Africa, and the remainder of the Company's international operations ("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 years endedDecember 31, 2014, 2013 and 2012 were as follows (in thousands):    

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

	Year Ended December 31,
	2014			2013			2012
North America
Revenue(1)	$	1,824,461		$	1,521,358		$	1,165,700
Segment cost of revenue and operating expenses(2)	1,755,113			1,380,746			1,025,974
Segment operating income(2)	69,348			140,612			139,726
EMEA
Revenue(1)	961,130			742,915			805,476
Segment cost of revenue and operating expenses(2)	857,062			631,409			699,470
Segment operating income(2)	104,068			111,506			106,006
Rest of World
Revenue	406,097			309,382			363,296
Segment cost of revenue and operating expenses(2)	471,067			364,295			405,313
Segment operating loss(2)	(64,970		)	(54,913		)	(42,017		)
Consolidated
Revenue	3,191,688			2,573,655			2,334,472
Segment cost of revenue and operating expenses(2)	3,083,242			2,376,450			2,130,757
Segment operating income(2)	108,446			197,205			203,715
Stock-based compensation	122,019			121,462			104,117
Acquisition-related expense (benefit), net	1,269			(11		)	897
(Loss) income from operations	(14,842		)	75,754			98,701
Other expense, net	(33,353		)	(94,663		)	(3,759		)
(Loss) income before provision for income taxes	(48,195		)	(18,909		)	94,942
Provision for income taxes	15,724			70,037			145,973
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(1) North America includes revenue from the United States of $1,784.6 million, $1,471.9 million and $1,108.4 million for the years endedDecember 31, 2014, 2013 and 2012 respectively. Beginning in September 2013, direct revenue transactions in the EMEA Goods category have been transacted through a Switzerland-based subsidiary. As a result, EMEA includes revenue from Switzerland of $468.7 million for the year endedDecember 31, 2014. There were no other individual countries that represented more than 10% of consolidated total revenue for the years ended December 31, 2014, 2013 or 2012.

(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 following table summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the years endedDecember 31, 2014, 2013 and 2012. (in thousands):

	Year Ended December 31,
	2014				2013					2012
	Stock-based compensation		Acquisition-related		Stock-based compensation		Acquisition-related			Stock-based compensation		Acquisition-related
North America	$	99,939	$	1,125	$	90,877	$	1,285		$	65,127	$	(2,780	)
EMEA	9,927		144		16,263		(1,296		)	15,123		3,677
Rest of World	12,153		—		14,322		—			23,867		—
Consolidated	$	122,019	$	1,269	$	121,462	$	(11	)	$	104,117	$	897

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 December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	1,150,417	$	1,267,158
EMEA	552,486		616,126
Rest of World (1)	524,694		158,726
Consolidated total assets	$	2,227,597	$	2,042,010

(1) North America contains assets from the United States of $1,120.4 million and $1,231.3 million as of December 31, 2014 and 2013, respectively. Rest of World contains assets from the Republic of Korea, including those assets acquired as a part of our acquisition of Ticket Monster described in Note 3 "Business Combinations," of $388.0 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of December 31, 2014 and 2013, respectively.

The following table summarizes the Company's tangible property and equipment, net of accumulated depreciation and amortization, by reportable segment as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	63,915	$	43,126
EMEA (2)	28,721		23,413
Rest of World	11,167		9,100
Consolidated total	$	103,803	$	75,639

(1) Substantially all tangible property and equipment within North America is located in the United States.

(2) Tangible property and equipment, net located within Ireland represented approximately 12% of the Company's consolidated tangible property and equipment, net as of December 31, 2014. Tangible property and equipment, net located within Switzerland represented approximately 11%

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of the Company's consolidated tangible property and equipment, net as of December 31, 2013. There were no other individual countries located outside of the United States that represented more than 10% of consolidated tangible property and equipment, net as of December 31, 2014 and 2013.

The following table summarizes depreciation and amortization of property, equipment and software and intangible assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	83,106	$	57,700	$	30,580
EMEA	24,849		24,157		17,546
Rest of World	36,966		7,592		7,675
Consolidated total	$	144,921	$	89,449	$	55,801

The following table summarizes the Company's expenditures for additions to tangible long-lived assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	6,775	$	14,728	$	38,543
EMEA	12,945		6,719		26,909
Rest of World	11,616		7,469		3,875
Consolidated total	$	31,336	$	28,916	$	69,327

The Company's equity method investments as of December 31, 2014 and 2013 were $1.2 million and $1.7 million, respectively, which are included in North America and are held by an entity in the United States.

Category Information

The Company offers goods and services through 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 were previously considered to be distinct from our primary categories and were aggregated with revenue and gross profit from Travel, our smallest category. In recent periods, these other revenue sources have been increasingly viewed by management as a component of the Local category, as they are primarily generated through the Company's relationships with local and national merchants. Accordingly, the Company updated its presentation of category information, effective beginning with the quarter ended March 31, 2014, to include other revenue and gross profit within the Local category in the tables below, and the prior period category information has been retrospectively adjusted to conform to the current period presentation.

131

The following table summarizes the Company's third party and other and direct revenue by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America						EMEA						Rest of World						Consolidated
	Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,
	2014		2013		2012		2014		2013		2012		2014		2013		2012		2014		2013		2012
Local (1):
Third party and other	$	674,605	$	671,846	$	665,587	$	391,179	$	430,020	$	501,782	$	167,552	$	182,010	$	221,859	$	1,233,336	$	1,283,876	$	1,389,228
Direct	—		1,772		12,037		—		—		—		—		—		—		—		1,772		12,037
Total	674,605		673,618		677,624		391,179		430,020		501,782		167,552		182,010		221,859		1,233,336		1,285,648		1,401,265
Goods:
Third party	5,966		17,409		60,269		63,650		133,117		186,495		146,984		69,344		87,746		216,600		219,870		334,510
Direct	1,074,913		774,023		391,239		442,344		115,881		36,393		46,892		27,325		10,821		1,564,149		917,229		438,453
Total	1,080,879		791,432		451,508		505,994		248,998		222,888		193,876		96,669		98,567		1,780,749		1,137,099		772,963
Travel:
Third party	68,977		56,308		36,568		63,957		63,897		76,553		44,669		30,703		42,870		177,603		150,908		155,991
Direct	—		—		—		—		—		4,253		—		—		—		—		—		4,253
Total	68,977		56,308		36,568		63,957		63,897		80,806		44,669		30,703		42,870		177,603		150,908		160,244
Total revenue	$	1,824,461	$	1,521,358	$	1,165,700	$	961,130	$	742,915	$	805,476	$	406,097	$	309,382	$	363,296	$	3,191,688	$	2,573,655	$	2,334,472

(1) Includes revenue from deals with local and national merchants and through local events.

132

The following table summarizes the Company's gross profit by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America							EMEA							Rest of World									Consolidated
	Year Ended   December 31,							Year Ended   December 31,							Year Ended   December 31,									Year Ended   December 31,
	2014		2013			2012		2014		2013		2012			2014			2013			2012			2014		2013			2012
Local (1):
Third party and other	$	581,067	$	582,723		$	541,716	$	364,545	$	383,725	$	453,970		$	138,527		$	153,406		$	173,735		$	1,084,139	$	1,119,854		$	1,169,421
Direct	—		(782		)	1,909		—		—		—			—			—			—			—		(782		)	1,909
Total	581,067		581,941			543,625		364,545		383,725		453,970			138,527			153,406			173,735			1,084,139		1,119,072			1,171,330
Goods:
Third party	5,112		15,319			48,288		55,434		116,357		168,429			91,486			39,699			66,271			152,032		171,375			282,988
Direct	88,810		66,753			36,188		77,706		13,194		(2,521		)	(2,984		)	(224		)	(2,563		)	163,532		79,723			31,104
Total	93,922		82,072			84,476		133,140		129,551		165,908			88,502			39,475			63,708			315,564		251,098			314,092
Travel:
Third party	56,994		48,824			27,208		59,229		56,850		68,777			33,260			25,689			33,596			149,483		131,363			129,581
Direct	—		—			—		—		—		529			—			—			—			—		—			529
Total	56,994		48,824			27,208		59,229		56,850		69,306			33,260			25,689			33,596			149,483		131,363			130,110
Total gross profit	$	731,983	$	712,837		$	655,309	$	556,914	$	570,126	$	689,184		$	260,289		$	218,570		$	271,039		$	1,549,186	$	1,501,533		$	1,615,532

(1) Includes gross profit from deals with local and national merchants and through local events.

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17. RELATED PARTY TRANSACTIONS

Business Combination

During 2013, the Company acquired Boomerang, Inc., a Lightbank LLC portfolio company, for total cash consideration of $1.0 million. Eric Lefkofsky, the Company's current CEO and former Chairman, and Bradley Keywell, one of the Company's directors, co-founded Lightbank, a private investment firm specializing in information technology companies. They are the majority shareholders of Lightbank, and Mr. Keywell is the managing director.

Marketing Services

During 2011, the Company engaged InnerWorkings, Inc. ("InnerWorkings") to provide marketing services.  At that time Eric Lefkofsky was the Executive Chairman and a significant stockholder of InnerWorkings. Mr. Lefkofsky is no longer a director nor a significant stockholder in InnerWorkings.  The Company recognized $1.1 million of expense under its agreement with InnerWorkings for the year ended December 31, 2012.

Logistics Services

In connection with the Company's expansion of Goods offerings during 2012, the Company entered into a transportation and supply chain management agreement with Echo Global Logistics, Inc. ("Echo"). Eric Lefkofsky, Bradley Keywell and Peter Barris, one of the Company's other directors, either are currently or were previously directors of Echo and have direct and/or indirect ownership interests in Echo. The Company terminated its arrangement with Echo during 2012. Echo received payments of approximately $1.9 million for its services under the agreement for the year ended December 31, 2012, which were expensed by the Company through "Cost of revenue" on the consolidated statement of operations.

18. QUARTERLY RESULTS (UNAUDITED)

The following table represents data from the Company's unaudited consolidated statements of operations for the most recent eight quarters. This quarterly information has been prepared on the same basis as the consolidated financial statements and includes all normal recurring adjustments necessary to fairly state the information for the periods presented. The results of operations of any quarter are not necessarily indicative of the results that may be expected for any future period (in thousands, except per share amounts).

	Quarter Ended
	Dec. 31,		Sept. 30,			June 30,			Mar. 31,			Dec. 31,			Sept. 30,			June 30,			Mar. 31,
	2014		2014			2014			2014			2013			2013			2013			2013
Consolidated Statements of Operations Data:
Revenue	$	925,421	$	757,054		$	751,576		$	757,637		$	768,447		$	595,059		$	608,747		$	601,402
Cost of revenue	531,962		376,910			361,714			371,916			390,239			235,437			224,053			222,393
Gross profit	393,459		380,144			389,862			385,721			378,208			359,622			384,694			379,009
Income (loss) from operations	18,394		(5,429		)	(7,854		)	(19,953		)	13,352			13,812			27,412			21,178
Net income (loss) (1)	11,384		(19,018		)	(20,922		)	(35,363		)	(78,861		)	(1,292		)	(5,551		)	(3,242		)
Net income (loss) attributable to Groupon, Inc. (1)	8,788		(21,208		)	(22,875		)	(37,795		)	(81,247		)	(2,580		)	(7,574		)	(3,992		)
Net earnings (loss) per share
Basic	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Diluted	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Weighted average number of shares outstanding
Basic	671,885,967		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417
Diluted	681,543,847		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417

(1) Net loss and net loss attributable to Groupon, Inc. for the quarter ended December 31, 2013 included an impairment of the Company's investment in F-tuan of $85.5 million ($77.8 million, net of tax). See Note 6 "Investments."

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ITEM 9: CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act), as of the end of the period covered by this Annual Report on Form 10-K.

Based on this evaluation, our management concluded that, as of December 31, 2014, our disclosure controls and procedures are effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) of the Exchange Act. Our management conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework). Our internal control over financial reporting includes policies and procedures that provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external reporting purposes in accordance with U.S. generally accepted accounting principles. Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2014. Management reviewed the results of its assessment with our Audit Committee. The effectiveness of our internal control over financial reporting as of December 31, 2014 has been audited by Ernst & Young LLP, an independent registered public accounting firm, as stated in its report which is included below.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the period covered by this Annual Report on Form 10-K that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs.

135

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of Groupon, Inc.

We have audited Groupon, Inc.'s internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). Groupon, Inc.'s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Groupon, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2014, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Groupon, Inc. as of December 31, 2014 and 2013, and the related consolidated statements of operations, comprehensive loss, stockholders' equity and cash flows for each of the three years in the period ended December 31, 2014, and our report dated February 12, 2015 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Chicago, Illinois

February 12, 2015

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ITEM 9B: OTHER INFORMATION

As part of our regular corporate governance and compliance practices, we recently reviewed our Code of Conduct, and on February 11, 2015, our Board of Directors approved certain amendments to the Code of Conduct. The amendments to the Code of Conduct are intended to clarify, update or enhance our Code of Conduct, including the provisions relating to waivers of the Code of Conduct, trade controls, non-disclosure of former employer information, accepting and rejecting gifts, charitable contributions and political activities and signing contracts, among others. In connection with the amendments to our Code of Conduct, we also amended our Insider Trading Policy to provide a limited exception to our pledging policy that allows the pledging of our common stock under limited circumstances, subject to the approval of our General Counsel and Chief Financial Officer or, under certain circumstances, the Chairman of our Board of Directors or Chairman of our Audit Committee, and we approved a stand-alone Anti-Corruption Policy that supplements and enhances our Code of Conduct and anti-corruption training program in light of our significant international operations. Each of these policies is referenced in our Code of Conduct.

None of the amendments to the Code of Conduct constitute a waiver of any provision of the Code of Conduct on behalf of our Chief Executive Officer, Chief Financial Officer or Chief Accounting Officer.

The foregoing summary of the amendments to the Code of Conduct is subject to and qualified in its entirety by reference to the full text of the Code of Conduct, as amended, a copy of which is posted on our website at www.groupon.com under the "Code of Conduct" subsection of the "Corporate Governance" tab.

137

PART III

ITEM 10: DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Information regarding the Directors of the Company is incorporated by reference from the information under the captions "Board of Directors" and "Corporate Governance at Groupon" in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders. Information regarding the Audit Committee and its Financial Experts is incorporated by reference from the information under the captions "Board Committees" and "Audit Committee Report" in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014. Information regarding the Executive Officers of the Company can be found in Part I of this Annual Report on Form 10-K. Information regarding compliance with Section 16(a) of the Exchange Act is incorporated by reference from the information under the caption "Section 16(a) Beneficial Ownership Reporting Compliance" in the Company’s Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014. 

Code of Ethics

We have adopted a Code of Conduct, which is applicable to our chief executive officer, chief financial officer and other principal executive and senior financial officers. Our Code of Conduct is available through our website (www.groupon.com). Information about the Code of Conduct is incorporated by reference from the information under the caption "Corporate Governance at Groupon" in the Company's Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014. We will post any amendment to or waiver from the provisions of the Code of Conduct that applies to the above executive officers on our website (www.groupon.com) under the caption "Corporate Governance."

ITEM 11: EXECUTIVE COMPENSATION

Incorporated by reference from the information under the captions "Named Executive Officer Compensation," "Director Compensation," "Compensation Discussion and Analysis," "Compensation Committee Interlocks and Insider Participation" and "Compensation Committee Report" in our Proxy Statement for our 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014.

ITEM 12: SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

Incorporated by reference from the information under the captions "Information Regarding Beneficial Ownership of Principal Stockholders, Directors and Management" and "Equity Compensation Plan Information" in our Proxy Statement for our 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014.

ITEM 13: CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDEDNCE

Incorporated by reference from the information under the captions "Corporate Governance at Groupon," "Board Independence" and "Certain Relationships and Related Party Transactions" in our Proxy Statement for our 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014.

ITEM 14: PRINCIPAL ACCOUNTANT FEES AND SERVICES

Incorporated by reference from the information under the caption "Ratification of the Independent Registered Public Accounting Firm" in our Proxy Statement for our 2015 Annual Meeting of Stockholders, which will be filed with the SEC within 120 days of December 31, 2014.

138

PART IV

ITEM 15: EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(1) We have filed the following documents as part of the Annual Report on Form 10-K

(2) Financial Statement Schedules

Schedule II-Valuation and Qualifying Accounts

	Balance at Beginning of Year		Charged to Expense		Acquisitions and Other			Balance at End of Year
	(in thousands)
TAX VALUATION ALLOWANCE:
Year ended December 31, 2014	$	173,577	$	23,515	$	8,394		$	205,486
Year ended December 31, 2013	159,249		24,404		(10,076		)	173,577
Year ended December 31, 2012	128,215		27,751		3,283			159,249

All other schedules have been omitted because they are either inapplicable or the required information has been provided in the consolidated financial statements or in the notes thereto.

(3) Exhibits (i)  See the Exhibit Index immediately following the signature page of this Annual Report on Form 10-K.

139

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on this 12th day of February 2015.

GROUPON, INC.
By:	/s/ ERIC P. LEFKOFSKY
	Name:	Eric P. Lefkofsky
	Title:	Chief Executive Officer

POWER OF ATTORNEY

KNOWN BY ALL PERSONS BY THESE PRESENTS, that the individuals whose signatures appear below hereby constitute and appoint Eric P. Lefkofsky, Jason E. Child and Brian C. Stevens, and each of them severally, as his or her true and lawful attorneys-in-fact and agents with full power of substitution and resubsitution for him or her and in his or her name, place and stead in any and all capacities to sign any and all amendments to this Annual Report on Form 10-K and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, full power and authority to do or perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or of his substitute or substitutes, may lawfully do to cause to be done by virtue hereof. Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following persons on behalf of the registrant and in the capacities indicated as of February 12, 2015.

140

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on this 12th day of February 2015.

Signature	Title
/s/ Eric P. Lefkofsky	President, Chief Executive Officer and Director (Principal Executive Officer)
Eric P. Lefkofsky
/s/ Jason E. Child	Chief Financial Officer (Principal Financial Officer)
Jason E. Child
/s/ Brian C. Stevens	Chief Accounting Officer (Principal Accounting Officer)
Brian C. Stevens
/s/ Peter J. Barris	Director
Peter J. Barris
/s/ Robert J. Bass	Director
Robert J. Bass
/s/ Daniel T. Henry	Director
Daniel T. Henry
/s/ Ann E. Ziegler	Director
Ann E. Ziegler
/s/ Bradley A. Keywell	Director
Bradley A. Keywell
/s/ Theodore J. Leonsis	Director
Theodore J. Leonsis
/s/ Jeffrey T. Housenbold	Director
Jeffrey T. Housenbold

141

EXHIBITS

Exhibit Number	Description
2.1	Share Purchase Agreement, dated as of November 6, 2013, among Groupon, Inc., Groupon Trailblazer, Inc., LivingSocial, Inc. and LivingSocial, B.V. (incorporated by reference to the Company's Current Report on Form 8-K filed on November 7, 2013).
2.2	Amendment No. 1 to the Share Purchase Agreement, dated as of November 26, 2013, among Groupon, Inc., Groupon Trailblazer, Inc., LivingSocial, Inc. and LivingSocial, B.V. (incorporated by reference to the Company's Current Report on Form 8-K filed on November 29, 2013).
2.3	Amendment No. 2 to the Share Purchase Agreement, dated as of January 1, 2014, among Groupon, Inc., Groupon Trailblazer, Inc., LivingSocial, Inc. and LivingSocial, B.V. (incorporated by reference to the Company's Current Report on Form 8-K filed on January 2, 2014).
2.4	Merger Agreement, dated as of January 13, 2014, among Groupon, Inc., Groupon Esteban, Inc., and Ideeli, Inc. (incorporated by reference to the Company's Current Report on Form 8-K filed on January 13, 2014).
3.1*	Sixth Amended and Restated Certificate of Incorporation.
3.3*	Amended and Restated By-Laws.
4.1*	Specimen Class A common stock certificate of the Registrant.
4.2*	Third Amended and Restated Investors Rights Agreement, dated as of December 10, 2010, between Groupon, Inc. and certain investors named therein.
10.1*	2008 Stock Option Plan.**
10.2*	Form of Notice of Grant of Stock Option under 2008 Stock Option Plan.**
10.3*	2010 Stock Plan.**
10.4*	Form of Notice of Grant of Stock Option under 2010 Stock Plan.**
10.5*	Form of Notice of Restricted Stock Unit Award under 2010 Stock Plan.**
10.6*	Amended and Restated Employment Agreement, dated as of April 29, 2011, by and between Groupon, Inc. and Jason Child.**
10.7	Amendment to Amended and Restated Employment Agreement, effective as of January 1, 2012, by and between Groupon, Inc. and Jason Child (incorporated by reference to the Company's Quarterly Report on Form 10-Q for the period ended June 30, 2012).**
10.8*	Agreement of Lease, dated as of October 14, 2010, by and between 600 West Chicago Associates LLC and Groupon, Inc.
10.9*	Agreement of Lease, dated as of December 7, 2010, by and between 600 West Chicago Associates LLC and Groupon, Inc.
10.10*	Form of Indemnification Agreement**
10.11	Form of Notice of Restricted Stock Award under 2011 Incentive Plan (incorporated by reference to the Company's Annual Report on Form 10-K for the year ended December 31, 2012).**
10.12	Form of Severance Benefit Agreement as entered into between Groupon, Inc. and its executive officers (incorporated by reference to the Company's Current Report on Form 8-K filed on August 7, 2013).**
10.13	Employment Agreement, dated as of May 11, 2014, by and between Groupon, Inc. and Dane Drobny (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the period ended June 30, 2014).**
10.14	Credit Agreement, dated as of August 1, 2014, by and among JPMorgan Chase Bank, National Association, J.P. Morgan Securities LLC, Morgan Stanley Senior Funding, Inc., Groupon, Inc., and the lenders party thereto from time to time (incorporated by reference to the Company’s Current Report on Form 8-K filed on August 5, 2014).
10.15	2011 Incentive Plan, as amended and restated effective as of May 20, 2014.**
10.16	Non-Employee Directors’ Compensation Plan.**
21.1	Subsidiaries of Groupon, Inc.
23.1	Consent of Ernst & Young LLP
31.1	Certification of Chief Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

142

31.2	Certification of Chief Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certifications of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	Interactive data file

_____________________________________

*    Incorporated by reference to the Company's registration statement on Form S-1 (registration number 333-174661)

**    Management contract or compensatory plan or arrangement.

143

EX-10.15

Exhibit 10.15

GROUPON, INC. 2011 INCENTIVE PLAN

AS AMENDED AND RESTATED

EFFECTIVE AS OF May 20, 2014

SECTION 1

General

1.1 Purpose. Groupon, Inc., a Delaware corporation (“Groupon”), has established the Plan to advance the interests of Groupon and the Subsidiaries (collectively, the “Company”) by providing a variety of equity‑based and cash incentives designed to motivate, retain and attract employees, directors, consultants, independent contractors, agents, and other persons providing services to the Company through the acquisition of a larger personal financial interest in Groupon.

1.2 Effect on Prior Plan. No further awards will be made under the GROUPON, INC. 2010 Stock Plan, as amended from time to time (the “2010 Plan”), following the Effective Date and the consummation of Groupon’s initial public offering.

SECTION 2

Defined Terms

The meaning of capitalized terms used in the Plan are set forth below if not otherwise defined in the text of the Plan.

(a)    “Affiliate” will have the meaning ascribed to such term in Rule 12b-2 of the General Rules and Regulations of the Exchange Act.

(b)    “Agreement” will have the meaning set forth in subsection 9.9.

(c)    “Approval Date” means the date on which the Plan is approved by Groupon’s stockholders.

(d)    “Award” means any award described in Sections 6 through 8 of the Plan.

(e)    “Beneficiary” means, unless otherwise provided in the award agreement, the person(s) or entity designated by the Participant in the most recent written beneficiary designation form filed with the Company or its designee to receive the benefits under a Participant’s Award specified under the Plan upon the Participant’s death; or, if there is no designated beneficiary or surviving designated beneficiary, the legal representative of the Participant’s estate entitled by will or the laws of descent and distribution to receive the benefits under a Participant’s Award.

(f)    “Board” means the Board of Directors of Groupon.

(g)    “Cash Incentive Award” has the meaning set forth in subsection 8.1.

(h)    “Change in Control” means the occurrence of any of the following

(1)    an Ownership Change Event or a series of related Ownership Change Events (collectively, a “Transaction”) in which the stockholders of Groupon immediately before the Transaction do not retain immediately after the Transaction direct or indirect beneficial ownership of more than fifty percent (50%) of the total combined voting power of the outstanding securities entitled to vote generally in the election of Board members or, in the case of an Ownership Change Event described in clause (iii) of the definition of Ownership Change Event, the entity to which the assets of Groupon were transferred (the “Transferee”), as the case may be; or

(2)    approval by the stockholders of a plan of complete liquidation or dissolution of Groupon;

provided, however, that a Change in Control shall be deemed not to include a transaction described in clauses (1) or (2) of this definition in which a majority of the members of the board of directors of the continuing, surviving or successor entity, or parent thereof, immediately after such transaction is comprised of Incumbent Directors.

For purposes of the preceding sentence, indirect beneficial ownership shall include, without limitation, an interest resulting from ownership of the voting securities of one or more corporations or other business entities which own Groupon or the Transferee, as the case may be, either directly or through one or more subsidiary corporations or other business entities.

The Board shall have the right to determine whether multiple sales or exchanges of the voting securities of Groupon or multiple Ownership Change Events are related, and its determination shall be final, binding and conclusive.

For purposes of this definition, an “Ownership Change Event” means the occurrence of any of the following with respect to Groupon: (i) the direct or indirect sale or exchange in a single or series of related transactions by the stockholders of Groupon of securities of Groupon representing more than fifty percent (50%) of the total combined voting power of Groupon’s then-outstanding securities entitled to vote generally in the election of Board members; (ii) a merger or consolidation in which Groupon is a party; or (iii) the sale, exchange, or transfer of all or substantially all of the assets of Groupon (other than a sale, exchange or transfer to one or more Subsidiaries).

For purposes of this definition, an “Incumbent Director” means a director who either (i) is a member of the Board as of the Effective Date or (ii) is elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the Incumbent Directors at the time of such election or nomination (but excluding a director who was elected or nominated in connection with an actual or threatened proxy contest relating to the election of directors of Groupon).

(i)    “Code” means the United States Internal Revenue Code of 1986, as amended, and references to any provision of the Code will be deemed to include successor provisions and regulations.

(j)    “Committee” has the meaning set forth in subsection 4.1.

(k)    “Effective Date” has the meaning set forth in subsection 9.1.

(l)    “Eligible Individual” means any officer, director, or other employee of Groupon or a Subsidiary, consultants, independent contractors or agents of Groupon or a Subsidiary, and persons who are expected to become officers, employees, directors, consultants, independent contractors or agents of Groupon or a Subsidiary, including in each case, directors who are not employees of Groupon or a Subsidiary.

(m)    “Exchange Act” means the Securities Exchange Act of 1934, as amended.

(n)    “Expiration Date” has the meaning set forth in subsection 6.9.

(o)    “Fair Market Value” of a Share means, as of any date on which the Shares are listed or quoted on a national or regional securities exchange or quotation system, and except as otherwise provided by the Committee, the closing sale price of a Share as reported on such national or regional securities exchange or quotation system. For purposes of determining the Fair Market Value of Shares that are sold pursuant to a cashless exercise program, Fair Market Value will be the price at which such Shares are sold. If, as of any date, Shares are not listed or quoted on a national or regional securities exchange or quotation system, the Fair Market Value of a Share shall be as determined by the Committee in good faith without regard to any restriction other than a restriction that, by its terms, will never lapse, and in a manner consistent with the requirements of Section 409A of the Code.

(p)    “Full Value Award” has the meaning set forth in subsection 7.1(a).

(q)    “Incentive Stock Option” means an Option that is intended to satisfy the requirements applicable to an “incentive stock option” described in Section 422 of the Code.

(r)    “Non-Qualified Stock Option” means an Option that is not intended to be an Incentive Stock Option.

(s)    “Option” has the meaning set forth in subsection 6.1(a).

(t)    “Outside Director” means a director of Groupon who is not an officer or employee of Groupon or any Subsidiary.

(u)    “Participant” will have the meaning set forth in Section 3.

(v)    “Performance‑Based Compensation” will have the meaning set forth in subsection 7.3.

(w)    “Performance Criteria” means performance targets based on one or more of the following criteria: (i) revenues or net revenues; (ii) operating profit or margin; (iii) expenses, operating expenses, marketing and administrative expense, restructuring or other special or unusual items, interest, tax expense, or other measures of savings; (iv) operating earnings, earnings before interest, taxes, depreciation, or amortization, net earnings, earnings per share (basic or diluted) or other measure of earnings; (v) cash flow, including cash flow from operations, investing, or financing activities, before or after dividends, investments, or

capital expenditures; (vi) balance sheet performance, including debt, long or short term, inventory, accounts payable or receivable, working capital, or stockholders’ equity; (vii) return measures, including return on invested capital, sales, assets, or equity; (viii) stock price performance or stockholder return; (ix) economic value created or added; (x) implementation or completion of critical projects, including acquisitions, divestitures, and other ventures, process improvements, attainment of other strategic objectives, including market penetration, geographic expansion, product development, regulatory or quality performance, innovation or research goals, or the like. In each case, performance may be measured (A) on an aggregate or net basis; (B) before or after tax or cumulative effect of accounting changes; (C) relative to other approved measures, on an aggregate or percentage basis, over time, or as compared to performance by other companies or groups of other companies; or (D) by product, product line, business unit or segment, or geographic unit. The performance targets may include a threshold level of performance below which no payment will be made (or no vesting will occur), levels of performance at which specified payments will be made (or specified vesting will occur), and a maximum level of performance above which no additional payment will be made (or at which full vesting will occur). Where applicable, each of the foregoing performance targets will be determined in accordance with generally accepted accounting principles and will be subject to certification by the Committee; provided that the Committee will have the authority to exclude the impact of charges for restructurings, discontinued operations, extraordinary items, and other unusual, special, or non-recurring events and the cumulative effects of tax or accounting principles as identified in the financial results filed with or furnished to the Securities and Exchange Commission.

(x)    “Person” will have the meaning given in Section 3(a)(9) of the Exchange Act, as modified and used in Sections 13(d) and 14(d) thereof, except that such term will not include (i) Groupon or any of its subsidiaries, (ii) a trustee or other fiduciary holding securities under an employee benefit plan of Groupon or any of its Affiliates, (iii) an underwriter temporarily holding securities pursuant to an offering of such securities, or (iv) a corporation owned, directly or indirectly, by the stockholders of Groupon in substantially the same proportions as their ownership of stock of Groupon.

(y)    “Plan” means this Groupon, Inc. 2011 Incentive Plan, as it may be duly amended from time to time.

(z)    “SAR” or “Stock Appreciation Right” has the meaning set forth in subsection 6.1(b).

(aa)    “Share” means a share of Class A common stock, $0.0001 par value, of Groupon.

(bb)    “Subsidiary” means any corporation, partnership, joint venture or other entity during any period in which a controlling interest in such entity is owned, directly or indirectly, by Groupon (or by any entity that is a successor to Groupon), and any other business venture designated by the Committee in which Groupon (or any entity that is a successor to Groupon) has, directly or indirectly, a significant interest (whether through the ownership of securities or otherwise), as determined in the discretion of the Committee. Notwithstanding the foregoing, in the case of an Incentive Stock Option or any determination relating to an Incentive Stock Option, “Subsidiary” means a corporation that is a subsidiary of Groupon within the meaning of Section 424(f) of the Code.

(cc)    “Substitute Award” means an Award granted or Shares issued by the Company in assumption of, or in substitution or exchange for, an award previously granted, or the right or obligation to make a future award, in all cases by a company acquired by the Company or any Subsidiary of the Company or with which the Company or a Subsidiary combines.

(dd)    “Termination Date” means the date on which a Participant both ceases to be an employee of the Company and ceases to perform material services for the Company (whether as a director or otherwise), regardless of the reason for the cessation; provided that a “Termination Date” will not be considered to have occurred during the period in which the reason for the cessation of services is a leave of absence approved by Groupon or the Subsidiary which was the recipient of the Participant’s services; and provided, further that, with respect to an Outside Director, “Termination Date” means date on which the Outside Director’s service as an Outside Director terminates for any reason.

SECTION 3

Participation

Subject to the terms and conditions of the Plan, a “Participant” in the Plan is any Eligible Individual to whom an Award is granted under the Plan. Subject to the terms and conditions of the Plan, the Committee will determine and designate, from time to time, from among the Eligible Individuals those persons who will be granted one or more Awards under the Plan. Subject to the terms and conditions of the Plan, a Participant may be granted any Award permitted under the provisions of the Plan and more than one Award may be granted to a Participant. Except as otherwise agreed by Groupon and the Participant, or except as otherwise provided in the Plan, an Award under the Plan will not affect any previous Award under the Plan or an award under any other plan maintained by Groupon or any Subsidiary.

SECTION 4

Committee

4.1 Administration By Committee. The authority to control and manage the operation and administration of the Plan will be vested in the committee described in subsection 4.2 (the “Committee”) in accordance with this Section 4. If the Committee does not exist, or for any other reason determined by the Board, the Board may take any action under the Plan that would otherwise be the responsibility of the Committee.

4.2 Selection of Committee. So long as Groupon is subject to Section 16 of the Exchange Act, the Committee will be selected by the Board and will consist of not fewer than two members of the Board or such greater number as may be required for compliance with Rule 16b-3 issued under the Exchange Act and will be comprised of persons who are independent for purposes of applicable stock exchange listing requirements. Any Award granted under the Plan that is intended to constitute Performance‑Based Compensation (including Options and SARs) will be granted by a Committee consisting solely of two or more “outside directors” within the meaning of Section 162(m) of the Code and applicable regulations; provided, however, that as of the Effective Date and continuing thereafter unless and until otherwise specified by the Board, the Committee will be the Compensation Committee of the Board.

Notwithstanding any other provision of the Plan to the contrary, with respect to any Awards to Outside Directors, the Committee for purposes of this Section 4 will be the Board.

4.3 Powers of Committee. The authority to manage and control the operation and administration of the Plan will be vested in the Committee, subject to the following:

(a)    Subject to the provisions of the Plan (including subsection 4.3(e)), the Committee will have the authority and discretion to (i) select Eligible Individuals who will receive Awards under the Plan, (ii) determine the time or times of receipt of Awards, (iii) determine the types of Awards and the number of Shares covered by the Awards, (iv) establish the terms, conditions, performance targets, restrictions, and other provisions of such Awards, (v) modify the terms of, cancel, or suspend Awards; (vi) reissue or repurchase Awards, and (vii) accelerate the exercisability or vesting of any Award. In making such Award determinations, the Committee may take into account the nature of services rendered by the respective individual, the individual’s present and potential contribution to Groupon’s or a Subsidiary’s success and such other factors as the Committee deems relevant.

(b)    Subject to the provisions of the Plan, the Committee will have the authority and discretion to determine the extent to which Awards under the Plan will be structured to conform to the requirements applicable to Performance‑Based Compensation, and to take such action, establish such procedures, and impose such restrictions at the time such Awards are granted as the Committee determines to be necessary or appropriate to conform to such requirements.

(c)    Subject to the provisions of the Plan, the Committee will have the authority and discretion to conclusively interpret the Plan, to establish, amend and rescind any rules and regulations relating to the Plan, to determine the terms and provisions of any agreements made pursuant to the Plan, to remedy any defect or omission and reconcile any inconsistency in the Plan or any Award, and to make all other determinations that may be necessary or advisable for the administration of the Plan including the termination thereof.

(d)    Any interpretation of the Plan by the Committee and any decision made by it under the Plan is final and binding on all persons.

(e)    Except as otherwise expressly provided in the Plan, where the Committee is authorized to make a determination with respect to any Award, such determination will be made at the time the Award is made, except that the Committee may reserve the authority to have such determination made by the Committee in the future (but only if such reservation is made at the time the Award is granted is expressly stated in the Agreement reflecting the Award and is permitted by applicable law).

4.4 Delegation by Committee. Except to the extent prohibited by applicable law or the rules of any stock exchange, the Committee may allocate all or any portion of its responsibilities and powers to any one or more of its members and may delegate all or any part of its responsibilities and powers to any person or persons selected by it, except that Awards to individuals who are designated as “officers” under Rule 16a-1(f) of the Exchange Act may be made solely by the Committee. Any such allocation or delegation may be revoked by the Committee at any time.

4.5 Information to be Furnished to Committee. The Company will furnish the Committee such data and information as may be required for it to discharge its duties. The records of the Company as to an individual’s employment or provision of services, termination of employment or cessation of the provision of services, leave of absence, reemployment and compensation will be conclusive on all persons unless determined to be incorrect. Participants and other persons entitled to benefits under the Plan must furnish the Committee such evidence, data or information as the Committee considers desirable to carry out the terms of the Plan.

4.6 Liability and Indemnification of Committee. No member or authorized delegate of the Committee will be liable to any person for any action taken or omitted in connection with the administration of the Plan unless attributable to his own fraud or willful misconduct; nor will Groupon or any Subsidiary be liable to any person for any such action unless attributable to fraud or willful misconduct on the part of a director or employee of Groupon or a Subsidiary. The Committee, the individual members thereof, and persons acting as the authorized delegates of the Committee under the Plan, will be indemnified by Groupon against any and all liabilities, losses, costs and expenses (including legal fees and expenses) of whatsoever kind and nature which may be imposed on, incurred by or asserted against the Committee or its members or authorized delegates by reason of the performance of a Committee function if the Committee or its members or authorized delegates did not act dishonestly or in willful violation of the law or regulation under which such liability, loss, cost or expense arises. This indemnification will not duplicate but may supplement any coverage available under any applicable insurance.

SECTION 5

Shares Reserved and Limitations

5.1 Shares and Other Amounts Subject to the Plan. The Shares for which Awards may be granted under the Plan will be subject to the following:

(a)    The Shares with respect to which Awards may be made under the Plan will be shares currently authorized but unissued or currently held or subsequently acquired by Groupon as treasury shares, including shares purchased in the open market or in private transactions.

(b)    Subject to the provisions of subsection 5.2, the number of Shares which may be issued with respect to Awards under the Plan will be equal to 100 Million (100,000,000) Shares, plus all Shares that are or become available for issuance under the 2010 Plan following the consummation of Groupon’s initial public offering (the “Share Pool”). Except as otherwise provided herein, any Shares subject to an Award under this Plan which for any reason expires or is forfeited, cancelled, surrendered, or terminated without issuance of Shares will again be available under the Plan. Shares subject to an Award under the Plan will again be made available for issuance under the Plan if such Shares are: (i) Shares that were subject to a stock‑settled SAR and were not issued or delivered upon the net settlement of such SAR; and (ii) Shares delivered to or withheld by Groupon to pay the exercise price or the withholding taxes related to outstanding Awards.

(c)    Substitute Awards will not reduce the Shares that may be issued under the Plan or that may be covered by Awards granted to any one Participant during any calendar year pursuant to subsection 5.1(e) or subsection 5.1(f).

(d)    Except as expressly provided by the terms of this Plan, the issuance by Groupon of shares of stock of any class, or securities convertible into shares of stock of any class, for cash or property or for labor or services, either upon direct sale, upon the exercise of rights or warrants to subscribe therefore or upon conversion of shares or obligations of Groupon or any Subsidiary convertible into such shares or other securities, will not affect, and no adjustment by reason thereof, will be made with respect to Awards then outstanding hereunder.

(e)    Subject to the following provisions of this subsection 5.1, the maximum number of Shares that may be delivered to Participants and their Beneficiaries with respect to Incentive Stock Options under the Plan will be Thirty Million (30,000,000); provided, however, that to the extent that shares not delivered must be counted against this limit as a condition of satisfying the rules applicable to Incentive Stock Options, such rules will apply to the limit on Incentive Stock Options granted under the Plan.

(f)    The maximum number of Shares that may be covered by Awards granted to any one Participant during any one calendar-year period pursuant to this Plan will be Seven and One Half Million (7,500,000). For purposes of this subsection 5.1(g), if an Option is in tandem with an SAR, such that the exercise of the Option or SAR with respect to a Share cancels the tandem SAR or Option right, respectively, with respect to such share, the tandem Option and SAR rights with respect to each Share will be counted as covering but one Share for purposes of applying the limitations of this subsection 5.1(f).

5.2 Adjustments to Shares. In the event there is a change in the capital structure of the Company as a result of any stock dividend or split, recapitalization, issuance of a new class of common stock, merger, consolidation, spin-off or other similar corporate change, or any distribution to stockholders holding Shares other than regular cash dividends, the Committee shall make an equitable adjustment (in the manner and form determined in the Committee’s sole discretion) in the number of Shares and forms of the Awards authorized to be granted under the Plan, including any limitation imposed on the number of Shares of Common Stock with respect to which an Award may be granted in the aggregate under the Plan or to any Participant, and make appropriate adjustments (including exercise price) to any outstanding Awards.

SECTION 6

Options and SARS

6.1 Definitions.

(a)    The grant of an “Option” under the Plan entitles the Participant to purchase Shares at an Exercise Price established by the Committee at the time the Option is granted. Options granted under this Section 6 may be either Incentive Stock Options or Non-Qualified Stock Options, as determined in the discretion of the Committee; provided, however, that Incentive Stock Options may only be granted to employees of Groupon or a Subsidiary. An Option will be deemed to be a Non-Qualified Stock Option unless it is specifically designated by the Committee as an Incentive Stock Option.

(b)    A grant of a “stock appreciation right” or “SAR” entitles the Participant to receive, in cash or Shares (as determined in accordance with the terms of the Plan), value equal to the excess of: (i) the Fair Market Value of a specified number of Shares at the time of exercise; over (ii) an Exercise Price established by the Committee at the time of grant.

(c)    An Option may but need not be in tandem with an SAR, and an SAR may but need not be in tandem with an Option (in either case, regardless of whether the original award was granted under this Plan or another plan or arrangement). If an Option is in tandem with an SAR, the Exercise Price of both the Option and SAR will be the same, and the exercise of the Option or SAR with respect to a Share will cancel the corresponding tandem SAR or Option right with respect to such share.

6.2 Eligibility. The Committee will designate the Participants to whom Options or SARs are to be granted under this Section 6 and will determine the number of Shares subject to each such Option or SAR and the other terms and conditions thereof, not inconsistent with the Plan.

6.3 Agreement. Each grant of an Option or a SAR under the Plan will be evidenced and governed exclusively by a written Agreement between the Participant and the Company. Such Option or SAR will be subject to all applicable terms and conditions of the Plan and may be subject to any other terms and conditions that are not inconsistent with the Plan and that the Committee deems appropriate for inclusion in the Agreement (including without limitation any performance conditions). The provisions of the various Agreements entered into under the Plan need not be identical. With respect to Options, the Agreement will also specify whether the Option is an Incentive Stock Option or a Non-Qualified Stock Option.

6.4 Limits on Incentive Stock Options. If the Committee grants Incentive Stock Options, then to the extent that the aggregate fair market value of Shares with respect to which Incentive Stock Options are exercisable for the first time by any individual during any calendar year (under all plans of the Company) exceeds $100,000, such Options will be treated as Non-Qualified Stock Options to the extent required by Section 422 of the Code.

6.5 Exercise Price. The “Exercise Price” of an Option or SAR will be established by the Committee at the time the Option or SAR is granted; provided, however, (a) in no event will such price be less than 100% of the Fair Market Value of a Share on such date and (b) no Incentive Stock Option granted to a Ten Percent Stockholder within the meaning of Section 422(b)(6) of the Code shall have an exercise price per share less than one hundred ten percent (110%) of the Fair Market Value of a Share on such date.

6.6 Exercise/Vesting. Except as otherwise expressly provided in the Plan, an Option or SAR granted under the Plan will be exercisable in accordance with the following:

(a)    An Option or SAR granted under this Section 6 will be exercised, in whole or in part (but with respect to whole Shares only) by giving notice to Groupon or its designee prior to the Expiration Date applicable thereto. Such

notice will specify the number of Shares being exercised and such other information as may be required by the Committee or its designee.

(b)    No Option or SAR may be exercised prior to the date on which it is exercisable (or vested) or after the Expiration Date.

(c)    The terms and conditions relating to exercise and vesting of an Option or SAR will be established by the Committee to the extent not inconsistent with the Plan, and may include, without limitation, conditions relating to completion of a specified period of service, achievement of performance standards prior to exercise or the achievement of Share ownership objectives by the Participant. Notwithstanding the foregoing, in no event will an Option or SAR granted to any employee become exercisable or vested prior to the first anniversary of the date on which it is granted (subject to acceleration of exercisability and vesting, to the extent permitted by, and subject to such terms and conditions determined by the Committee, in the event of the Participant’s death, disability, retirement, or involuntary termination or in connection with a change in control).

6.7 Method of Exercise; Payment of Exercise Price. A Participant may exercise an Option (i) by giving notice to the Committee or its designee specifying the number of whole Shares to be purchased and accompanying such notice with payment therefor in full, and without any extension of credit, either (A) in cash, (B) by delivery (either actual delivery or by attestation procedures established by the Committee or its designee) to the Committee or its designee of previously owned whole Shares having a Fair Market Value, determined as of the date immediately preceding the date of exercise, equal to the aggregate purchase price payable by reason of such exercise, (C) authorizing the Committee to withhold whole Shares which would otherwise be delivered having an aggregate Fair Market Value, determined as of the date of exercise, equal to the amount necessary to satisfy such obligation, provided that the Committee determines that such withholding of Shares does not cause the Company to recognize an increased compensation expense under applicable accounting principles, (D) except as may be prohibited by applicable law, in cash by a broker‑dealer acceptable to the Company to whom the Participant has submitted an irrevocable notice of exercise or (E) a combination of (A), (B) and (C) and (ii) by executing such documents as the Committee may reasonably request. Any fraction of a Share which would be required to pay such purchase price will be disregarded and the remaining amount due will be adjusted through the federal tax withholding mechanism. No Shares will be issued and no certification representing Common Stock will be delivered until the full purchase price therefor and any withholding taxes thereon, as described in Section 9.5, have been paid.

6.8 Post-Exercise Limitations. The Committee, in its discretion, may provide in an Award such restrictions on Shares acquired pursuant to the exercise of an Option as it determines to be desirable, including, without limitation, restrictions relating to disposition of the shares and forfeiture restrictions based on service, performance, Share ownership by the Participant and such other factors as the Committee determines to be appropriate.

6.9 No Repricing. Except for adjustments pursuant to subsection 5.2 (Adjustments to Shares) or reductions of the Exercise Price approved by Groupon’s stockholders, the Exercise Price for any outstanding Option or SAR may not be decreased after the date of grant nor may an outstanding Option or SAR granted under the Plan be surrendered to Groupon as consideration for the grant of a new Award, cash, or replacement Option or SAR with a lower exercise price. In addition, no repricing of an Option or SAR will be permitted without the approval of Groupon’s stockholders if such approval is required under the rules of any stock exchange on which Shares are listed; provided, however, that the foregoing prohibition shall not apply to the actions permitted under subsection 9.2 (Change in Control).

6.10 Expiration Date. The “Expiration Date” with respect to an Option or SAR means the date established as the Expiration Date by the Committee at the time of the grant; provided, however, that in no event will the Expiration Date of an Option or SAR be later than the date that is ten years after the date on which the Option or SAR is granted (or such shorter period required by law or the rules of any stock exchange). No Incentive Stock Option granted to a Ten Percent Stockholder within the meaning of Section 422(b)(6) of the Code shall be exercisable after the expiration of five (5) after the effective date of grant of such Option.

SECTION 7

Full Value Awards

7.1 Definitions.

A “Full Value Award” is a grant of one or more Shares or a right to receive one or more Shares in the future (including restricted shares, restricted share units, deferred shares, deferred share units, performance shares and performance share units), with such grant subject to one or more of the following, as determined by the Committee:

(a)    The grant may be in consideration of a Participant’s previously performed services, or surrender of other compensation that may be due.

(b)    The grant may be contingent on the achievement of performance or other objectives during a specified period.

(c)    The grant may be subject to a risk of forfeiture or other restrictions that will lapse upon the achievement of one or more goals relating to completion of service by the Participant or achievement of performance or other objectives.

(d)    The grant may also be subject to such other conditions, restrictions and contingencies, as determined by the Committee, including provisions relating to dividend or dividend equivalent rights and deferred payment or settlement.

7.2 Agreement. Each grant of a Full Value Award under the Plan will be evidenced and governed exclusively by a written Agreement between the Participant and the Company. Such Full Value Award will be subject to all applicable terms and conditions of the Plan and may be subject to any other terms and conditions that are not inconsistent with the Plan and that the Committee deems appropriate for inclusion in the Agreement (including without limitation any performance conditions). The provisions of the various Agreements entered into under the Plan need not be identical.

7.3 Performance‑Based Full Value Awards. Any Full Value Award granted to any Participant may constitute “Performance‑Based Compensation” within the meaning of Section 162(m) of the Code and regulations thereunder. If any such award is intended to satisfy the requirements for Performance‑Based Compensation under Section 162(m) of the Code, then to the extent required by Section 162(m), any Full Value Award so designated will be conditioned on the achievement of one or more performance targets as determined by the Committee and the following additional requirements will apply:

(a)    The performance targets established for the performance period established by the Committee will be objective (as that term is described in regulations and other guidance under Section 162(m) of the Code), and will be established in writing by the Committee not later than 90 days after the beginning of the performance period (but in no event after 25% of the performance period has elapsed), and while the outcome as to the performance targets is substantially uncertain. The performance targets established by the Committee will be based on one or more of the Performance Criteria.

(b)    A Participant otherwise entitled to receive a Full Value Award for any performance period will not receive a settlement or payment of the Award until the Committee has determined that the applicable performance target(s) have been attained. To the extent that the Committee exercises discretion in making the determination required by this subsection 7.3(b), such exercise of discretion may not result in an increase in the amount of the payment unless such discretion is exercised pursuant to Section 9.2 hereof.

(c)    Except as otherwise provided by the Committee, if a Participant’s Termination Date occurs because of death or disability, the Participant’s Full Value Award will become vested without regard to whether the Full Value Award would be Performance‑Based Compensation.

Nothing in this Section 7 will preclude the Committee from granting Full Value Awards under the Plan or the Committee, Groupon or any Subsidiary from granting any cash incentive awards outside of the Plan that are not intended to be Performance‑Based Compensation; provided, however, that to the extent that the provisions of this Section 7 reflect the requirements applicable to Performance‑Based Compensation, such provisions will not apply to the portion of the Award, if any, that is not intended to constitute Performance‑Based Compensation.

SECTION 8

Cash Incentive Awards

8.1 Grant of Cash Incentive Awards. Subject to the terms of the Plan, the Committee may grant to a Participant the right to receive a payment in cash (or, in the discretion of the Committee, in Shares equivalent in value to the cash otherwise payable) at any time and from time to time, as determined by the Committee (“Cash Incentive Award”). Each Cash Incentive Award will have a value as determined by the Committee, and the Committee may subject an Award to Performance Criteria or any other conditions, restrictions or contingencies, as determined in the Committee’s discretion. Payment of earned Cash Incentive Awards will be as determined by the Committee and evidenced in the Agreement. Subject to the terms of the Plan, the Committee, in its sole discretion, may pay earned Cash Incentive Awards in the form of cash or Shares (or in a combination thereof) that have an aggregate Fair Market Value equal to the value of the earned Award. The determination of the Committee with respect to the time and form of payout of such Awards will be set forth in the Agreement pertaining to the grant of the Award.

8.2 Performance‑Based Cash Incentive Awards. Any Cash Incentive Award granted to any Participant may constitute “Performance‑Based Compensation” within the meaning of Section 162(m) of the Code and regulations thereunder. If any such award is intended to satisfy the requirements for Performance‑Based Compensation under Section 162(m) of the Code, then to the extent required by Section 162(m), any Cash Incentive Award so designated will be conditioned on the achievement of one or more performance targets as determined by the Committee and the following additional requirements will apply:

(a)    The performance targets established for the performance period established by the Committee will be objective (as that term is described in regulations under Section 162(m) of the Code), and will be established in writing by the Committee not later than 90 days after the beginning of the performance period (but in no event after 25% of the performance period has elapsed), and while the outcome as to the performance targets is substantially uncertain. The performance targets established by the Committee will be based on one or more of the Performance Criteria.

(b)    A Participant otherwise entitled to receive a Cash Incentive Award for any performance period will not receive a settlement or payment of the Award until the Committee has determined that the applicable performance target(s) have been attained. To the extent that the Committee exercises discretion in making the determination required by this subsection 8.2, such exercise of discretion may not result in an increase in the amount of the payment, unless such discretion is exercised pursuant to Section 9.2 hereof.

(c)    Except as otherwise provided by the Committee, if a Participant’s Termination Date occurs because of death or disability, the Participant’s Cash Incentive Award will become vested without regard to whether the Cash Incentive Award would be Performance‑Based Compensation.

(d)    The maximum amount payable pursuant to a Cash Incentive Award to any Participant in any calendar year is Five Million ($5,000,000).

Nothing in this Section 8 will preclude the Committee from granting Cash Incentive Awards under the Plan or the Committee, Groupon or any Subsidiary from granting any cash incentive awards outside of the Plan that are not intended to be Performance‑Based Compensation; provided, however, that to the extent that the provisions of this Section 8 reflect the requirements applicable to Performance‑Based Compensation, such provisions will not apply to any Cash Incentive Award that is not intended to constitute Performance‑Based Compensation. Except as otherwise provided in the applicable program or arrangement, distribution of any Cash Incentive Awards by the Company for a performance period ending in a calendar year will be made to the Participant not later than March 15 of the following calendar year.

SECTION 9

Operation and Administration

9.1 Effective Date and Approval Date. The Plan will be effective as of the date it is adopted by the Board (the “Effective Date”). The Plan will be unlimited in duration and, in the event of Plan termination, will remain in effect as long as any Shares awarded under it are outstanding and not fully vested; provided, however, that no new Awards will be made under the Plan on or after the tenth anniversary of the date on which the Plan is adopted by the Board. No Option that is intended to be an Incentive Stock Option may be granted under the Plan until the Approval Date. If the Approval Date does not occur within twelve months after the Effective Date, then no Options that are intended to be Incentive Stock Options may be granted under the Plan.

9.2 Change in Control. (a) Notwithstanding any provision of this Plan or any Agreement, in the event of a Change in Control, the Board (as constituted prior to such Change in Control) may, in its discretion:

(i)    require that (A) some or all outstanding Options and SARs will immediately become exercisable in full or in part, (B) the vesting period applicable to some or all outstanding restricted shares and restricted stock units will lapse in full or in part, (C) the performance period applicable to some or all outstanding Awards will lapse in full or in part, or (D) the performance targets applicable to some or all outstanding Awards will be deemed to be satisfied at the target, maximum or any other level;

(ii)    require that shares of common stock of the company resulting from or succeeding to the business of the Company pursuant to such Change in Control, or a parent corporation thereof, be substituted for some or all of the Shares subject to an outstanding Award, with an appropriate and equitable adjustment to such Award as determined by the Board in accordance with Section 5.2;

(iii)    require outstanding Awards, in whole or in part, to be surrendered to the Company by the holder, and to be immediately cancelled by the Company, and to provide for the holder to receive (A) a cash payment in an amount

equal to (x) in the case of an Option or a SAR, the number of Shares then subject to the portion of such Option or SAR surrendered, to the extent such Option or SAR is then exercisable or becomes exercisable pursuant to Section 6.5 above, multiplied by the excess, if any, of the Fair Market Value (or the Change in Control price, as applicable) of a Share as of the date of the Change in Control, over the purchase price or base price per Share subject to such Option or SAR, (y) in the case of restricted shares or restricted stock units, the number of Shares then subject to the portion of such Award surrendered, to the extent the vesting period and performance period, if any, on such Award have lapsed or will lapse pursuant to Section 7.2 above and to the extent that the performance targets, if any, have been satisfied or are deemed satisfied pursuant to Sections 7.2 or 7.3 above, multiplied by the Fair Market Value (or the Change in Control price, as applicable) of a Share as of the date of the Change in Control, and (z) in the case of performance shares and performance share units, the Fair Market Value (or the Change in Control price, as applicable) of the Shares then subject to the portion of such Award surrendered, to the extent the performance period applicable to such Award has lapsed or will lapse pursuant to Section 7.3 above and to the extent the performance targets applicable to such Award have been satisfied or are deemed satisfied pursuant to Section 7.3 above; (B) shares of common stock of the corporation resulting from or succeeding to the business of the Company pursuant to such Change in Control, or a parent corporation thereof, having a fair market value not less than the amount determined under clause (A) above; or (C) a combination of the payment of cash pursuant to clause (A) above and the issuance of shares pursuant to Clause (B) above; and/or

(iv)    take such other action as the Board deems appropriate, in its sole discretion.

9.3 Special Director Provisions. Notwithstanding any other provision of the Plan to the contrary, unless otherwise provided by the Board, Awards to non-employee directors may be made in accordance with the terms of any Outside Director’s program adopted by the Board, and all such Awards will be deemed to be made under the Plan.

9.4 Limit on Distribution. Distribution of Shares or other amounts under the Plan will be subject to the following:

(a)    Notwithstanding any other provision of the Plan, Groupon will have no liability to deliver any Shares under the Plan or make any other distribution of benefits under the Plan unless such delivery or distribution would comply with all applicable laws and the applicable requirements of any securities exchange or similar entity.

(b)    In the case of a Participant who is subject to Sections 16(a) and 16(b) of the Exchange Act, the Committee may, at any time, add such conditions and limitations to any Award to such Participant, or any feature of any such Award, as the Committee, in its sole discretion, deems necessary or desirable to comply with Section 16(a) or 16(b) and the rules and regulations thereunder or to obtain any exemption therefrom.

(c)    To the extent that the Plan provides for issuance of certificates to reflect the transfer of Shares, the transfer of such Shares may be effected on a non-certificated basis, to the extent not prohibited by applicable law or the rules of any stock exchange.

9.5 Withholding. All Awards and other payments under the Plan are subject to withholding of all applicable taxes, which withholding obligations may be satisfied by one or more of the following means as determined by the Company in its sole discretion: (i) withholding from any wages or other cash compensation paid to the Participant by the Company, (ii) surrender of Shares which the Participant already owns or to which the Participant is otherwise entitled under the Plan, (iii) withholding from the proceeds of the sale of Shares owned by the Participant, or (iv) any other method of withholding authorized by the Committee; provided, however, with the consent of the Committee, previously‑owned Shares that have been held by the Participant or Shares to which the Participant is entitled under the Plan may only be used to satisfy the minimum tax withholding required by applicable law (or other rates that will not have a negative accounting impact).

9.6 Transferability. Awards under the Plan are not transferable except to the Participant’s Beneficiary upon the death of the Participant. To the extent that the Participant who receives an Award under the Plan has the right to exercise such Award, the Award may be exercised during the lifetime of the Participant only by the Participant. Notwithstanding the foregoing provisions of this subsection 9.6, the Committee may permit Awards under the Plan to be transferred to or for the benefit of the Participant’s family (including, without limitation, to a trust or partnership for the benefit of a Participant’s family), subject to such procedures as the Committee may establish. In no event will an Incentive Stock Option be transferable to the extent that such transferability would violate the requirements applicable to such option under Section 422 of the Code.

9.7 Notices. Any notice or document required to be filed with the Committee or the Company under the Plan must be writing and will be properly filed if delivered or mailed to the Company’s Legal Department at Groupon’s principal executive offices. If intended for the Participant, notices shall be delivered personally or shall be addressed (if sent by mail) to the Participant’s then current residence address as shown on the Company’s records, or to such other address as the Participant directs in a notice

to the Company, or shall be delivered electronically to the Participant’s email address as shown on the Company’s records. All notices shall be deemed to be given on the date received at the address of the addressee or, if delivered personally or electronically, on the date delivered. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Plan through an on-line or electronic system established and maintained by the Company or its designee. The Company may, by written notice to affected persons, revise its notice procedures from time to time. Any notice required under the Plan (other than a notice of election) may be waived by the person entitled to notice.

9.8 Form and Time of Elections. Unless otherwise specified herein, each election required or permitted to be made by any Participant or other person entitled to benefits under the Plan, and any permitted modification or revocation thereof, will be in writing filed with the Committee at such times, in such form, and subject to such restrictions and limitations, not inconsistent with the terms of the Plan, as the Committee requires.

9.9 Agreement With Groupon or Subsidiary. At the time of an Award to a Participant under the Plan, the Committee may require a Participant to enter into an agreement with Groupon or the Subsidiary, as applicable (the “Agreement”), in a form specified by the Committee, agreeing to the terms and conditions of the Plan and to such additional terms and conditions, not inconsistent with the Plan, as the Committee may, in its sole discretion, prescribe.

9.10 Limitation of Implied Rights.

(a)    Neither a Participant nor any other person will, by reason of the Plan, acquire any right in or title to any assets, funds or property of the Company whatsoever, including without limitation, any specific funds, assets, or other property which the Company, in its sole discretion, may set aside in anticipation of a liability under the Plan. A Participant will have only a contractual right to the amounts, if any, payable under the Plan, unsecured by any assets of the Company. Nothing contained in the Plan constitutes a guarantee by the Company or any Subsidiary that the assets of such companies will be sufficient to pay any benefits to any person.

(b)    The Plan does not constitute a contract of employment or continued service, and selection as a Participant will not give any employee the right to be retained in the employ or service of the Company, nor any right or claim to any benefit under the Plan, unless such right or claim has specifically accrued under the terms of the Plan. Except as otherwise provided in the Plan, no Award under the Plan will confer upon the holder thereof any right as a stockholder of Groupon prior to the date on which the Participant fulfills all service requirements and other conditions for receipt of such rights and Shares are registered in the Participant’s name. Without limiting the generality of the foregoing, to the extent permitted or required by law, as determined by the Committee, Participants holding Shares of restricted stock granted under the Plan may be granted the right to exercise full voting rights with respect to those Shares during the vesting period. A Participant will have no voting rights with respect to any restricted stock units granted hereunder.

(c)    During the vesting period, Participants holding Shares of restricted stock, restricted stock units, performance Shares or performance share units granted hereunder may, if the Committee so determines, be credited with dividends paid with respect to the underlying Shares or dividend equivalents while they are so held in a manner determined by the Committee in its sole discretion. The Committee may apply any restrictions to the dividends or dividend equivalents that the Committee deems appropriate. The Committee, in its sole discretion, may determine the form of payment of dividends or dividend equivalents, including, but not limited to, cash or Shares.

9.11 Forfeiture Events. The Committee may specify in an Agreement that the Participant’s rights, payments, and benefits with respect to an Award will be subject to reduction, cancellation, forfeiture or recoupment upon the occurrence of certain specified events, in addition to any otherwise applicable vesting or performance conditions of an Award. Such events may include, but are not limited to, termination of employment for cause, violation of material Company, Affiliate or Subsidiary policy, breach of noncompetition, non-solicitation or confidentiality provisions that apply to the Participant, a determination that the payment of the Award was based on an incorrect determination that financial or other criteria were met or other conduct by the Participant that is detrimental to the business or reputation of the Company, its Affiliates or the Subsidiaries.

9.12 Clawback Policy. Any compensation earned or paid pursuant to this Plan is subject to forfeiture, recovery by the Company or other action pursuant to any clawback or recoupment policy which the Company may adopt from time to time, including without limitation any such policy which the Company may be required to adopt under the Dodd-Frank Wall Street Reform and Consumer Protection Act and implementing rules and regulations thereunder, or as otherwise required by law.

9.13 Evidence. Evidence required of anyone under the Plan may be by certificate, affidavit, document or other information which the person acting on it considers pertinent and reliable, and signed, made or presented by the proper party or parties.

9.14 Action by Groupon or Subsidiary. Any action required or permitted to be taken by Groupon or any Subsidiary will be by resolution of its board of directors or by action of one or more members of the board (including a committee of the board) who are duly authorized to act for the board or (except to the extent prohibited by applicable law or the rules of any stock exchange) by a duly authorized officer of Groupon.

9.15 Gender and Number. Where the context allows, words in any gender include any other gender, words in the singular include the plural and the plural includes the singular, and the term “or” also means “and/or” and the term “including” means “including but not limited to”.

9.16 Applicable Law. The validity, interpretation, instruction, performance, enforcement and remedies of or relating to this Plan and any Agreement, and the rights and obligations of the parties hereunder, shall be governed by and construed in accordance with the substantive laws of the State of Delaware, without regard to the conflict of law principles, rules or statutes of any jurisdiction.

9.17 Foreign Participants. Notwithstanding any other provision of the Plan to the contrary, the Committee may grant Awards to eligible persons who are foreign nationals on such terms and conditions different from those specified in the Plan as may, in the judgment of the Committee, be necessary or desirable to foster and promote achievement of the purposes of the Plan. In furtherance of such purposes, the Committee may make such modifications, amendments, procedures and subplans as may be necessary or advisable to comply with provisions of laws in other countries or jurisdictions in which Groupon or a Subsidiary operates or has employees.

9.18 Construction. If any provision of the Plan or any Agreement relating to an Award intended to satisfy the requirements for Performance‑Based Compensation under Section 162(m) of the Code does not comply or is inconsistent with such requirements of Section 162(m) of the Code, such provision will be construed or deemed amended to the extent necessary to conform to such requirements.

9.19 Creditor’s Rights. A holder of restricted stock units shall have no rights other than those of a general creditor of the Company. Restricted stock units represent an unfunded and unsecured obligation of the Company, subject to the terms and conditions of the applicable restricted stock unit Agreement.

9.20 Fractional Shares. Under no circumstances will the Company be required to authorize or issue fractional shares and no consideration will be provided as a result of any fractional shares not be issued or authorized.

SECTION 10

Amendment and Termination

The Board may, at any time, amend or terminate the Plan, and the Board or the Committee may amend any Agreement, provided that no amendment or termination may, in the absence of written consent to the change by the affected Participant (or, if the Participant is not then living and if applicable, the Beneficiary), adversely affect the rights of any Participant or, if applicable, Beneficiary under any Award granted under the Plan prior to the date such amendment is adopted by the Board (or the Committee, if applicable), unless an amendment is required to conform the Plan or an Agreement to the requirements of applicable law; and further provided that adjustments pursuant to subsection 5.2 will not be subject to the foregoing limitations of this Section 10; and further provided no amendment will be made to the provisions of subsection 6.8 (relating to Option and SAR repricing) without the approval of Groupon’s stockholders; and provided further, that no other amendment will be made to the Plan without the approval of Groupon’s stockholders if the approval of Groupon’s stockholders of such amendment is required by law or the rules of any stock exchange on which Shares are listed.

SECTION 11

Sections 409A and 4999 of the Code

11.1 Intent to Comply with Section 409A of the Code. Notwithstanding anything in this Plan to the contrary (for purposes of this section, “Plan” includes all Awards under the Plan), the Plan will be construed, administered or deemed amended as necessary to comply with the requirements of Section 409A of the Code to avoid taxation under Section 409A(a)(1) of the Code to the extent subject to Section 409A of the Code. The Committee, in its sole discretion, will determine the requirements of Section 409A of the Code applicable to the Plan and will interpret the terms of the Plan consistently therewith. Under no circumstances, however, will the Company or any Subsidiary or Affiliate or any of its employees, officers, directors, service providers or agents have any liability to any person for any taxes, penalties or interest due on amounts paid or payable under the Plan, including any taxes, penalties or interest imposed under Section 409A of the Code. Any payments to Award holders pursuant to this Plan are also intended to be exempt from Section 409A of the Code to the maximum extent possible, first, to the extent such payments are scheduled to be paid and are in fact paid during the short-term deferral period, as short-term deferrals pursuant to U.S. Treasury Regulation §1.409A-1(b)(4), and then, if applicable, under the separation pay exemption pursuant to U.S. Treasury Regulation §1.409A-1(b)(9)(iii), and for this purpose each payment will be considered a separate payment such that the determination of whether a payment qualifies as a short-term deferral will be made without regard to whether other payments so qualify and the determination of whether a payment qualifies under the separation pay exemption will be made without regard to any payments which qualify as short-term deferrals. To the extent any amounts under this Plan are payable by reference to an Award holder’s “termination of employment,” such term will be deemed to refer to the Award holder’s “separation from service,” within the meaning of Section 409A of the Code. Notwithstanding any other provision in this Plan, if an Award holder is a “specified employee,” as defined in Section 409A of the Code, as of the date of the Award holder’s separation from service, then to the extent any amount payable under this Plan (i) constitutes the payment of nonqualified deferred compensation, within the meaning of Section 409A of the Code, (ii) is payable upon the Award holder’s separation from service and (iii) under the terms of this Plan would be payable prior to the six-month anniversary of the Award holder’s separation from service, such payment will be delayed until the earlier to occur of (a) the six-month anniversary of the separation from service or (b) the date of the award holder’s death.

11.2 Prohibition on Acceleration of Payments. The time or schedule of any settlement or amount scheduled to be paid pursuant to the terms of the Plan or any Agreement may not be accelerated except as otherwise permitted under Section 409A of the Code and the guidance and Treasury regulations issued thereunder.

11.3 Excise Tax Under Section 4999 of the Code. Except as otherwise expressly provided in an employment, retention, change in control, severance or similar agreement between the Participant and the Company, if any acceleration of vesting pursuant to an Award and any other payment or benefit received or to be received by a Participant would subject the Participant to any excise tax pursuant to Section 4999 of the Code due to the characterization of such acceleration of vesting, payment or benefit as an “excess parachute payment” under Section 280G of the Code, then, provided such election would not subject the Participant to taxation under Section 409A of the Code, the Participant may elect, in his or her sole discretion, to reduce the amount of any acceleration of vesting called for under the Award in order to avoid such characterization. To aid the Participant in making any election called for under this subsection, no later than the date of the occurrence of any event that might reasonably be anticipated to result in an “excess parachute payment” to the Participant as described herein, the Company shall request a determination in writing by independent public accountants selected by the Company. As soon as practicable thereafter, such accountants shall determine and report to the Company and the Participant the amount of such acceleration of vesting, payments and benefits which would produce the greatest after-tax benefit to the Participant. For the purposes of such determination, the accountants may rely on reasonable, good faith interpretations concerning the application of Sections 280G and 4999 of the Code. The Company and the Participant shall furnish to the accountants such information and documents as the accountants may reasonably request in order to make their required determination. The Company shall bear all fees and expenses the accountants charge in connection with their services contemplated by this subsection.

EX-10.16

Exhibit 10.16

GROUPON, INC.

NON-EMPLOYEE DIRECTORS' COMPENSATION PLAN

Amended and Restated as of January 1, 2015

The Company hereby establishes this Plan to assist the Company in attracting and retaining persons of competence and stature who are not employees to serve as Directors by providing them with competitive retainers, an ownership interest in the Company, and the opportunity to defer Retainers.

1.Effective Date. The Plan was initially effective as of the Effective Date and was amended and restated effective January 1, 2015.

2.Definitions. Where used in the Plan, the following capitalized words and terms shall have the meanings specified below, unless the context clearly indicates to the contrary:

(a)"Account" means the recordkeeping account established by the Committee for each Participant to which DSUs, and earnings thereon, are credited in accordance with Section 10 of the Plan.

(b)"Beneficiary" means such person(s) or legal entity that is designated by a Participant under Section 14 to receive benefits hereunder after such Participant's death.

(c)"Board" means the Company's Board of Directors.

(d)"Cash Retainer" means the portion of a Retainer which is payable in cash.

(e)"Change in Control" means such term as defined in the Incentive Plan. Notwithstanding the foregoing, if an amount payable under the Plan is "deferred compensation" for purposes of Code Section 409A, and if a payment of such amount would be accelerated or otherwise triggered upon a Change in Control, then the foregoing definition is modified, to the extent necessary to avoid the imposition of an excise tax under Code Section 409A, to mean a "change in control event" as such term is defined for purposes of Code Section 409A. For purposes of clarity, if an amount would, for example, vest and be paid on a Change in Control as defined herein but payment of such amount would violate the provisions of Code Section 409A, then the amount shall vest but will be paid only in compliance with its terms and Code Section 409A (i.e., upon a permissible payment event).

(f)"Code" means the Internal Revenue Code of 1986, as amended.

(g)"Code Section 409A" means Section 409A of the Code and all interpretive guidance issued thereunder by the U.S. Internal Revenue Service.

(h)"Committee" means a committee appointed to administer the Plan by the Board, or the properly designated delegate of such committee.

(i)"Company" means Groupon, Inc., a Delaware corporation.

(j)"Director" means each director who has been duly appointed to the Board.

(k)"Disability" means the individual is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or can be expected to last for a continuous period of not less than twelve (12) months.

(l)"DSU" means a deferred share unit issued under and pursuant to the terms and conditions of the Incentive Plan.

(m)"Effective Date" means December 13, 2011.

(n)"Election Form" means such document(s) or form(s), which may be electronic, as prescribed and made available from time to time by the Committee, whereby a Participants elects to exchange all or a portion of his or her Cash Retainer for an award of DSUs.

(o)"Exchange Act" means the Securities Exchange Act of 1934.

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(p)"Fair Market Value" as of a particular date shall mean the fair market value of a Share as determined in accordance with the Incentive Plan.

(q)"Incentive Plan" means the Groupon, Inc. 2011 Incentive Plan.

(r)"Participant" means each Director who is not an employee of the Company.

(s)"Plan" means this Groupon, Inc. Non-Employee Directors' Compensation Plan.

(t)"Retainer" means the annual fee payable by the Company to a Participant with respect to his or her service on the Board, including both fees payable in cash and fees payable in Shares.

(u)"Retirement" means a Separation upon or after attaining seventy (70) years of age.

(v)"RSU" means a restricted stock unit issued under and pursuant to the terms and conditions of the Incentive Plan.

(w)"RSU Retainer" means the portion of a Retainer which is payable in the form of RSUs.

(x)"Separation" means a Participant's ceasing to be a Director on account of a voluntary or involuntary separation from service, within the meaning of Code Section 409A, with the Board, for any reason.

(y)"Share" means a share of the Company's common stock.

(z)"Specified Employee" means a Participant who is determined by the Company to be a "specified employee" within the meaning of Code Section 409A with respect to a Separation occurring in any twelve (12) month period commencing on each April 1 based on the Participant's compensation with the Company, as defined in Code Section 416(i)(1)(D), and his or her status at the end of the immediately preceding calendar year.

3.Eligibility and Participation. Each Director who is not an employee of the Company and who is selected by the Committee for participation in the Plan shall be a Participant in the Plan. A Participant will cease to be a Participant in the Plan on the earlier to occur of (a) his or her Separation or (b) the date on which the Committee determines that he or she is no longer eligible to participate in the Plan.

4.Retainer. Each Participant shall be paid an annual Retainer in the amount of $225,000 in exchange for his or her service as a Director. In addition, the annual Retainer for the chair of each of the Compensation Committee and the Nominating and Governance Committee will be increased by $15,000, and the annual Retainer for the chair of the Audit Committee will be increased by $20,000. The Retainer, including, for the avoidance of doubt, any additional amount due to a Participant who serves as the chair of one of the aforementioned committees, shall be paid as follows: (a) 1/3 in the form of a Cash Retainer, and (b) 2/3 in the form of a RSU Retainer. The Cash Retainer shall be paid to the Participant on a quarterly basis as soon as practicable, but in any event within thirty (30) days, following the end of a calendar quarter, for the future quarter's service. Each Director who becomes a Participant during a calendar quarter will be entitled to receive a quarterly Cash Retainer payment for such quarter, unless, immediately before becoming a Participant, he or she was an employee of the Company. The RSU Retainer shall be awarded to the Participant on an annual basis on the date of the Company's annual meeting of shareholders. In the event that a Director becomes a Participant following the date of the annual meeting of shareholders but during the same calendar year as the annual meeting of the shareholders, the Board may, in its sole discretion, pay such Participant a pro-rated RSU Retainer with respect to his or her service during such year.

5.Vesting of RSUs. 100% of the RSUs awarded pursuant to a RSU Retainer shall vest and become non-forfeitable on the first anniversary of the date on which the applicable RSU Retainer was granted. Notwithstanding the foregoing, the following provisions shall apply in the circumstances described below:

(a)Death; Disability; Retirement. In the event of a Participant's Separation due to his or her death, Disability, or Retirement, vesting of the unvested portion of a RSU Retainer shall be accelerated upon the date of Separation.

(b)All Other Separations. In the event of a Participant's Separation for any reason other than his or her death, Disability, or Retirement, any unvested portion of a RSU Retainer shall immediately be cancelled and forfeited on the date of Separation.

(c)Change in Control. In the event of a Change in Control, vesting of the unvested portion of a RSU Retainer shall be accelerated upon the date of the Change in Control.

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6.Distribution of RSUs. RSUs shall be distributed as soon as administratively practicable, but in any event within sixty (60) days, following the date on which the RSUs vest in accordance with Section 5. In the event of a Participant's death, distribution will be made to the Participant's Beneficiary.

7.Deferral of Cash Retainer. Notwithstanding any provision of Section 4, a Participant may elect to exchange all or a portion of his or her Cash Retainer for an award of DSUs in the manner described in this Section 7. The number of DSUs to be awarded will be determined by dividing the amount of the Cash Retainer to be exchanged by the Fair Market Value of a Share as of the date(s) on which the Cash Retainer would otherwise have been paid. DSUs will be credited to the Participant's Account effective as of the date on which the Cash Retainer would otherwise have been paid. The Committee may establish procedures for deferral elections as it deems necessary to comply with the requirements of the Plan and Code Section 409A.

(a)Election. A Participant can make an election to receive DSUs by completing and executing an Election Form that specifies the amount or percentage of the Cash Retainer to be exchanged for DSUs and the date on which DSUs shall be distributed, and filing the completed Election Form with the Committee. A Participant's Election Form shall remain in effect under the Plan until it is terminated by operation of the Plan or changed by the Participant in accordance with this Section. A Participant's Election Form must be filed with the Committee before expiration of the election period established by the Committee, which period, with respect to Cash Retainers to be paid in a given calendar year, shall end no later than December 31 of the immediately preceding calendar year. Notwithstanding the foregoing, a Participant may file an Election Form within the thirty (30) day period immediately following the date he or she first becomes a Participant, provided that the Cash Retainer being exchanged for DSUs relates to services performed after the date of such election.

(b)Revoking an Election. A Participant may elect to suspend or revoke a prior filed Election Form for services performed during a subsequent calendar year by filing an Election Form that specifies the amount or percentage of the Cash Retainer to be deferred before expiration of the election period established by the Committee, which period shall end no later than December 31 of the calendar year immediately preceding such year.

(c)Changing an Election. A Participant may elect to change his or her elected time of distribution of DSUs. Any election change must be made no later than twelve (12) months before the date on which distribution would have commenced under the Participant’s original election, and such election change will not be effective until twelve (12) months following the date of the election change. Any such election change may not provide for a new distribution date that is earlier than five (5) years following the originally elected distribution date.

8.Distribution of DSUs. A Participant's Account shall be distributed to the Participant as soon as administratively possible, but in any event within thirty (30) days, following the later of (a) the Participant's Separation, or (b) the occurrence of a specified date as elected by the Participant in his or her Election Form. In the event that the distribution trigger is the Participant's Separationdue to the Participant's death, distribution will be made to the Participant's Beneficiary.

(a)Form of Payment. A Participant's Account shall be distributed in a single distribution in the form of Shares.

(b)Income Inclusion under Code Section 409A. Notwithstanding any provision of the Plan to the contrary, in the event that the Plan fails to meet the requirements of Code Section 409A, the Committee may distribute to Participants the portion of their Accounts that is required to be included in income as a result of such failure.

9.Source of Shares. The RSUs and DSUs that may be paid pursuant to the Plan shall be issued under the Incentive Plan subject to all of the terms and conditions of the Incentive Plan, and only to the extent that Shares remain available for issuance under the Incentive Plan. The terms and conditions of the Incentive Plan are incorporated into and made a part of this Plan with respect to any RSUs and DSUs paid pursuant to this Plan, and any awards of RSUs or DSUs shall be governed by and construed in accordance with the provisions of the Incentive Plan. In the event of any inconsistency between the Incentive Plan and this Plan with respect to RSUs or DSUs, the terms of the Incentive Plan shall control. The Plan does not constitute a separate source of Shares for the grant of the RSUs and DSUs described herein.

10.Accounts. The Commitee shall establish and maintain, or cause to be established and maintained, a separate Account for each Participant hereunder who executes and files an Election Form pursuant to Section 7. Each such Participant's DSUs shall be separately accounted for and credited with earnings, to the extent applicable, for recordkeeping purposes only, to his or her Account. A Participant's Account shall be solely for the purposes of measuring the amounts to be paid under the Plan. The Company shall not be required to fund or secure a Participant's Account in any way, the Company's obligation to Participants hereunder being purely contractual.

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11.Administration. The Plan shall be administered by the Committee. So long as the Company is subject to Section 16 of the Exchange Act, the Committee will consist of not fewer than two (2) members of the Board or such greater number as may be required for compliance with Rule 16b-3 issued under the Exchange Act and will be comprised of persons who are independent for purposes of applicable stock exchange listing requirements.

(a)Committee's Authority. The Committee shall have full discretionary authority to construe and interpret the terms and provisions of the Plan; to adopt, alter and repeal administrative rules, guidelines and practices governing the Plan; to perform all acts, including the delegation of its administrative responsibilities to advisors or other persons; and to rely upon the information or opinions of legal counselor experts selected to render advice with respect to the Plan, as it shall deem advisable, with respect to the administration of the Plan. The Committee may take any action, correct any defect, supply any omission or reconcile any inconsistency in the Plan, or in any election hereunder, in the manner and to the extent it shall deem necessary to carry the Plan into effect or to carry out the Company's purposes in adopting the Plan.

(b)Final Determinations. Any decision, interpretation or other action made or taken in good faith by or at the direction of the Company or the Committee arising out of or in connection with the Plan, shall be within the absolute discretion of each of them, and shall be final, binding and conclusive on the Company, and all Participants and Beneficiaries and their respective heirs, executors, administrators, successors and assigns. The Committee's determinations hereunder need not be uniform, and may be made selectively among Participants, whether or not they are similarly situated.

(c)Delegation of Authority. The Committee may, to the extent permitted by law, delegate some or all of its authority under the Plan to such officers of the Company as it deems appropriate. Unless the Committee otherwise specifies, any delegate will have the authority and right to exercise (within the scope of such person's delegated authority) all of the same powers and discretion that would otherwise be available to the Committee pursuant to the terms hereof. The Committee may also employ or appoint agents (who may be officers or employees of the Company) to assist in the administration of the Plan and to take such actions under the Plan on its behalf as the Committee deems appropriate.

(d)Indemnification. The Company shall indemnify the Committee and any individuals to whom administrative duties have been properly delegated under this Plan, against any and all claims, losses, damages, expenses and liabilities arising from their responsibilities in connection with this Plan, unless the same is determined to be due to gross negligence or willful misconduct.

(e)Plan Expenses. The expense of administering the Plan shall be borne by the Company.

12.Amendment or Termination. The Board may amend this Plan at any time and from time to time. The Board may terminate this Plan, to the extent such termination is permissible according to Treasury Regulations or other published guidance issued by the U.S. Department of Treasury or the Internal Revenue Service. Any amendment or termination of this Plan will not materially adversely affect the rights of a Participant accrued prior thereto without that Participant's written consent, except to the extent required by law or to conform the operation of the Plan to the requirements of Code Section 409A.

13.Taxes. The Company is not responsible for the tax consequences under federal, state or local law of any election made by any Participant under the Plan. All payments under the Plan are subject to withholding and reporting requirements to the extent required by applicable law. To the extent required by law in effect at the time a distribution is made from the Plan, the Company or its agents shall have the right to withhold or deduct from any distributions or payments any taxes required to be withheld by federal, state or local governments.

14.Participant and Beneficiary Information. Each Participant shall keep the Committee informed of his or her current address and the current address of his or her designated Beneficiary or Beneficiaries. A Participant may from time to time change his or her designated Beneficiary without the consent of such Beneficiary by filing a new designation in writing with the Committee. If no Beneficiary designation is in effect at the time of the Participant's death, or if the designated Beneficiary is missing or has predeceased the Participant, distribution shall be made to the Participant's surviving spouse, or if none, to his or her surviving children per stirpes, and if none, to his or her estate. The Committee shall not be obligated to search for any person. If such person is not located within one (1) year after the date on which a payment or distribution is payable under the Plan, payment shall be made to the Participant's estate.

15.Right of Company to Take Actions. The adoption and maintenance of this Plan shall not be deemed to constitute a contract between the Company and a Director, or to be a consideration for, nor an inducement or condition of, the employment of any person. Nothing herein contained, or any action taken hereunder, shall be deemed to give a Director the right to be retained in the service of the Board or to interfere with the right of the Board to discharge the Director at any time for any reason, nor shall it be deemed to give to the Board the right to require the Director to remain in its employ, nor shall it interfere with the Director's

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right to terminate his or her service at any time. Nothing in this Plan shall prevent the Company from amending, modifying, or terminating any other benefit plan.

16.Headings. The headings of the sections and subsections of this Plan are for reference only. In the event of a conflict between a heading and the contents of a section or subsection, the contents of the section or subsection shall control.

17.Number and Gender. Whenever any words used herein are in the singular form, they shall be construed as though they were also used in the plural form in all cases where they would so apply, and references to the male gender shall be construed as applicable to the female gender where applicable, and vice versa.

18.Code Section 409A. Amounts payable under this Plan are intended to be exempt from or otherwise comply with the requirements of Code Section 409A. With respect to amounts payable under this Plan that constitute nonqualified deferred compensation within the meaning of Code Section 409A, the Plan is intended to be an unfunded nonqualified deferred compensation plan, and to the extent that the Plan is inconsistent with Code Section 409A, the applicable provisions of Code Section 409A shall be deemed to automatically supersede such inconsistent provisions. No amount under this Plan that constitutes nonqualified deferred compensation and is payable upon a Specified Employee's Separation shall be paid to such Specified Employee before the date that is at least six (6) months after the date of such Specified Employee's Separation (or, if earlier, the date of the Specified Employee's death).

19.Applicable Law. To the extent not preempted by federal law, this Plan shall be construed, administered and governed in all respects under and by the laws of the State of Delaware, without giving effect to its conflict of laws principles. The jurisdiction and venue for any disputes arising under, or any action brought to enforce (or otherwise relating to), this Plan shall be exclusively in the courts in the State of Illinois, County of Cook, including the Federal Courts located therein (should Federal jurisdiction exist).

20.Alienation or Assignment of Benefits. Except as otherwise provided under the Plan, a Participant's rights and interest under the Plan shall not be assigned or transferred except as otherwise provided herein, and the Participant's rights to benefit payments under the Plan shall not be subject to alienation, pledge or garnishment by or on behalf of creditors (including heirs, beneficiaries, or dependents) of the Participant or of a Beneficiary.

21.Company's Protection. By execution of an Election Form, each Participant shall be deemed to have agreed to cooperate with the Company by furnishing any and all information reasonably requested by the Committee in order to facilitate the payment of benefits hereunder.

5

Exhibit A

GROUPON, INC.

NON-EMPLOYEE DIRECTORS' COMPENSATION PLAN

DEFERRAL ELECTION FORM

Please complete and return this Election Form to [_______]so that it is received by Groupon on or before December 31 of the year prior to the year in which you intend to exchange all or a portion of your Cash Retainer for deferred share units ("DSUs") under the Groupon, Inc. Non-Employee Directors' Compensation Plan (the "Plan"). However, if you are newly eligible to participate in the Plan, you may complete and return this Election Form during the 30-day period following the date on which you became a Participant. Capitalized terms used in this Election Form and not defined herein shall have the meaning ascribed to them in the Plan.

_________________________ First Name	_________________________ Middle Name			_________________________ Last Name
___________________________________ Street Address		_______________ City		________ State	______________ Zip Code
_________________________ Social Security Number	_________________________ Date of Birth		MALE o             FEMALE o
_________________________ Telephone Number	___________________________________ Email

______________________________________________________________________________________________________

ELECTION TO RECEIVE DEFERRED SHARE UNITS

As a non-employee director on Groupon's Board of Directors (the "Board"), you may elect to exchange all or a portion of your Cash Retainer for an award of DSUs, which will be credited to an account established for you under the Plan.

This election will be applied to your Cash Retainer effective January 1 of the year following the year in which you make and file this election. This election will remain in effect for each subsequent year until you file a new Election Form with the Committee in accordance with the terms of the Plan. Any new election will not be effective until January 1 of the year following the year in which the new election is made and filed.

However, if you are a new Participant in the Plan, and you make and file this election during the 30-day period following the date on which you became a Participant in the Plan, your election will be applied to your Cash Retainer paid after your Election Form is filed.

Please complete the following:

• I elect to exchange a whole percentage of my Cash Retainer equal to ________% (0%-100%) for an award of DSUs under the terms of the Plan.

______________________________________________________________________________________________________

ELECTION OF DISTRIBUTION DATE

Your DSUs will be paid to you on the later to occur of (a) your separation from service, or (b) the date you elect pursuant to this Election Form, in accordance with the terms of the Plan. If you do not elect a date below, your DSUs will be paid upon your separation from service. This election will be applied to DSUs credited to your Plan account beginning on January 1 of the year following the year in which you make and file this election. Following your initial election, you may elect a different date by filing a new Election Form with the Committee in accordance with the terms of the Plan; however, a new election following your initial election (1) must be filed with the Committee no later than 12 months prior to the distribution date you initially elected, (2) will not become effective until 12 months following the date your new election is made and filed, and (3) must elect a distribution date that is at least 5 years after the date you initially elected.

Please complete the following:

• I elect to receive a distribution of my DSUs on [_____ ___, ____].

______________________________________________________________________________________________________

6

AGREEMENT AND AUTHORIZATION

I understand that my elections are subject to review and final approval by the Committee, and that my elections are governed by the terms and conditions of the Plan, as may be amended from time to time. The Plan and related Plan materials (if any) have been made available to me, and I have had the opportunity to ask questions and receive answers regarding the terms and conditions of the Plan. I hereby certify that the above information about me is true, accurate, and complete. I authorize Groupon to make the appropriate deductions, as indicated on this form, from my Cash Retainer. I acknowledge that I have been advised to consult with my own financial, tax, estate planning and legal advisors before making any election to defer compensation in order to determine the tax effects and other implications of my participation in the Plan.

______________________________________________________ Participant Signature	____________________________ Date
______________________________________________________ Signature of Company Representative Acknowledging Receipt	____________________________ Date

7

EX-21.1

Exhibit 21.1

The following is a list of subsidiaries of Groupon Inc., omitting subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary as of December 31, 2014:

Subsidiary	Jurisdiction
U.S. Entities
Needish, Inc.	Delaware
GI International Holdings, Inc.	Delaware
Ideeli, Inc.	Delaware
Groupon Trailblazer, Inc.	Delaware
Foreign Entities
Groupon Holdings, BV	Netherlands
Groupon Europe, GMBH	Germany

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in (1) the Registration Statement (Form S-8 No. 333-177799) pertaining to the 2011 Amended Incentive Plan, 2010 Stock Plan, and 2008 Stock Plan of Groupon, Inc.; (2) the Registration Statement (Form S-8 No. 333-181854) pertaining to the Groupon, Inc. 2012 Employee Stock Purchase Plan; and (3) the Registration Statement (Form S-8 No. 333-193165) pertaining to the Groupon, Inc. 2011 Incentive Plan of our reports dated February 12, 2015, with respect to the consolidated financial statements and schedule of Groupon, Inc., and the effectiveness of internal control over financial reporting of Groupon, Inc., included in this Annual Report (Form 10-K) for the year ended December 31, 2014.

/s/ Ernst & Young LLP

Chicago, Illinois

February 12, 2015

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Eric P. Lefkofsky, certify that:

1.I have reviewed this Annual Report on Form 10-K of Groupon, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statement made, in light of the circumstances under which such statements were made, not misleading, with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly represent in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 12, 2015                    /s/ Eric P. Lefkofsky

Eric P. Lefkofsky

Chief Executive Officer

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Jason E. Child, certify that:

1.I have reviewed this Annual Report on Form 10-K of Groupon, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statement made, in light of the circumstances under which such statements were made, not misleading, with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly represent in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 12, 2015                    /s/ Jason E. Child

Jason E. Child

Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

Certifications Pursuant to

18 U.S.C. Section 1350

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Annual Report of Groupon, Inc. (the "Company") on Form 10-K for the period ending December 31, 2014, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Eric P. Lefkofsky, Chief Executive Officer of the Company, and Jason E. Child, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to our knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:    /s/ Eric P. Lefkofsky

Eric P. Lefkofsky

Chief Executive Officer

By:    /s/ Jason E. Child

Jason E. Child

Chief Financial Officer

Date:    February 12, 2015

XML

Compensation Arrangements Compensation Arrangements Restricted Stock Awards (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The table below summarizes activity regarding unvested restricted stock for the year ended December 31, 2014:

	Restricted Stock Awards		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	97,677		$	14.00
Granted	—		$	—
Vested	(50,481	)	$	14.54
Forfeited	(13,129	)	$	17.07
Unvested at December 31, 2014	34,067		$	15.53

XML

Goodwill and Other Intangible Assets Goodwill Activity by Segment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 220,827		$ 206,684
Goodwill, related to acquisitions	250,045		9,504
Goodwill, other adjustments	(23,062)	[1]	4,639	[1]
Goodwill, end of period	447,810		220,827
North America [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	85,457		79,276
Reallocation to new segments			0
Goodwill, related to acquisitions	31,353		4,893
Goodwill, other adjustments	(92)	[1]	1,288	[1]
Goodwill, end of period	116,718		85,457
International [Domain]
Goodwill [Roll Forward]
Goodwill, beginning of period	0		127,408
Reallocation to new segments			(124,770)
Goodwill, related to acquisitions	0		0
Goodwill, other adjustments	0	[1]	(2,638)	[1]
Goodwill, end of period	0		0
EMEA [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	115,669		0
Reallocation to new segments			(105,347)
Goodwill, related to acquisitions	0		4,611
Goodwill, other adjustments	(13,490)	[1]	5,711	[1]
Goodwill, end of period	102,179		115,669
ROW [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	19,701		0
Reallocation to new segments			(19,423)
Goodwill, related to acquisitions	218,692		0
Goodwill, other adjustments	(9,480)	[1]	278	[1]
Goodwill, end of period	$ 228,913		$ 19,701

[1] (1)Represents the impact of changes in foreign exchange rates on goodwill.

XML

Summary of Significant Accounting Policies Internal Use Software Life (Details) (Internally-developed software [Member])	12 Months Ended
	Dec. 31, 2014
Internally-developed software [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years 0 months 0 days

XML

Compensation Arrangements Compensation Arrangement Option Activity (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	25.00%
Aggregate Intrinsic Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 6,500,000	$ 30,000,000	$ 75,200,000
Stock Options [Member]
Options [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	3,355,054
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(1,029,471)
Stock Issued During Period, Shares, Share-based Compensation, Forfeited	(62,589)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,262,994	3,355,054
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	2,262,994
Weighted-Average Exercise Price [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.11
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 1.09
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$ 2.41
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 1.09	$ 1.11
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price	$ 1.09
Weighted Average Remaining Contractual Term [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	5 years 0 months 10 days	6 years 0 months 15 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	5 years 0 months 10 days	6 years 0 months 15 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	5 years 0 months 10 days
Aggregate Intrinsic Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	35,742
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	16,226	35,742
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 16,226

XML

Goodwill and Other Intangible Assets Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	$ 223,108	$ 101,280
Accumulated Amortization, Intangible Assets	112,551	72,837
Net Carrying Value, Intangible Assets	110,557	28,443
Subscriber Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	103,858	45,541
Accumulated Amortization, Intangible Assets	48,754	30,866
Net Carrying Value, Intangible Assets	55,104	14,675
Merchant Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	39,448	9,186
Accumulated Amortization, Intangible Assets	18,677	7,991
Net Carrying Value, Intangible Assets	20,771	1,195
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	29,190	6,739
Accumulated Amortization, Intangible Assets	10,666	6,739
Net Carrying Value, Intangible Assets	18,524	0
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	25,903	23,038
Accumulated Amortization, Intangible Assets	21,989	19,547
Net Carrying Value, Intangible Assets	3,914	3,491
Brand Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	7,664
Accumulated Amortization, Intangible Assets	1,486
Net Carrying Value, Intangible Assets	6,178
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value, Intangible Assets	17,045	16,776
Accumulated Amortization, Intangible Assets	10,979	7,694
Net Carrying Value, Intangible Assets	$ 6,066	$ 9,082

XML

Fair Value Measurements Contingent Obligations (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Contingent Obligations [Abstract]
Minimum share price required to prevent contigent obligation	$ 6.48
Other Acquisition 1 [Member]
Contingent Obligations [Abstract]
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High	$ 1,100

XML

Summary of Significant Accounting Policies Bad Debt Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Bad Debt Expense [Abstract]
Provision for Doubtful Accounts	$ 2.3	$ 0.7	$ 0.6

XML

Supplemental Consolidated Balance Sheet and Statement of Operations Information (Tables)

12 Months Ended

Dec. 31, 2014

SUPPLEMENTAL CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS INFORMATION [Abstract]

Schedule of Other Income (Expense) [Table Text Block]

The following table summarizes the Company's other expense, net for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Interest income	$	1,564		$	1,721		$	2,522
Interest expense	(907		)	(291		)	—
Gain on E-Commerce transaction	—			—			56,032
Impairments of investments	(2,036		)	(85,925		)	(50,553		)
Loss on equity method investments	(459		)	(44		)	(9,925		)
Foreign exchange (losses) gains, net	(31,526		)	(10,271		)	1,403
Other	11			147			(3,238		)
Other expense, net	$	(33,353	)	$	(94,663	)	$	(3,759	)

Schedule of Prepaid Expenses and Other Current Assets [Table Text Block]

The following table summarizes the Company's prepaid expenses and other current assets as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Current portion of unamortized tax effects on intercompany transactions	$	14,193	$	28,502
Finished goods inventories	57,134		57,097
Prepaid expenses	42,231		29,404
Restricted cash	12,019		14,579
Income taxes receivable	41,788		39,994
VAT receivable	17,746		12,966
Prepaid marketing	7,443		17,301
Other	15,437		10,572
Total prepaid expenses and other current assets	$	207,991	$	210,415

Schedule of Accrued Merchant and Supplier Payables [Table Text Block]

The following table summarizes the Company's accrued merchant and supplier payables as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Accrued merchant payables	$	632,605	$	518,233
Accrued supplier payables(1)	277,962		234,710
Total accrued merchant and supplier payables	$	910,567	$	752,943

(1) Amounts include payables to suppliers of inventories and providers of shipping and fulfillment services.

Schedule of Accrued Expenses [Table Text Block]

The following table summarizes the Company's accrued expenses as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Marketing	$	15,962	$	12,001
Refunds reserve	33,238		38,597
Payroll and benefits	65,743		64,966
Customer credits	44,463		44,728
Professional fees	14,292		18,906
Other	56,654		47,788
Total accrued expenses	$	230,352	$	226,986

Schedule of Other Current Liabilities [Table Text Block]

The following table summarizes the Company's other current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Income taxes payable	$	14,461	$	21,994
VAT payable	33,436		37,627
Sales taxes payable	9,042		10,412
Deferred revenue	43,903		47,259
Capital lease obligations	14,872		3,636
Other	14,598		11,790
Total other current liabilities	$	130,312	$	132,718

Schedule of Other Liabilities, Noncurrent [Table Text Block]

The following table summarizes the Company's other non-current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Long-term tax liabilities	$	82,138	$	109,286
Deferred rent	13,200		9,148
Capital lease obligations	23,387		5,665
Other	17,559		7,598
Total other non-current liabilities	$	136,284	$	131,697

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table summarizes the components of accumulated other comprehensive income, net of tax, as of December 31, 2014, 2013 and 2012 (in thousands):

	Foreign currency translation adjustments		Unrealized loss on available-for-sale securities			Pension liability adjustment			Total
Balance as of December 31, 2012	$	12,393	$	53		$	—		$	12,446
Other comprehensive income	12,559		(175		)	—			12,384
Balance as of December 31, 2013	24,952		(122		)	—			24,830
Other comprehensive income (loss) before reclassification adjustments	11,812		(210		)	(1,500		)	10,102
Reclassification adjustment for impairment included in net loss	—		831			—			831
Other comprehensive income (loss)	11,812		621			(1,500		)	10,933
Balance as of December 31, 2014	$	36,764	$	499		$	(1,500	)	$	35,763

The effects of amounts reclassified from accumulated other comprehensive income to net loss for the years endedDecember 31, 2014, 2013 and 2012 are presented within the following line items in the consolidated statements of operations (in thousands):

	Year Ended December 31,							Consolidated Statements of Operations Line Item
	2014			2013		2012
Other-than-temporary impairment of available-for-sale security	$	1,340		$	—	$	—	Other expense, net
Less: Tax effect	(509		)	—		—		Provision for income taxes
Reclassification adjustment	$	831		$	—	$	—

XML

Fair Value Measurements Fair Value, Assets and Liabilities Measured at Fair Value (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	$ 7,437	$ 3,174
Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	440,596	585,514
Contingent Consideration, Fair Value Disclosure	1,983	606
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	440,596	585,514
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
Contingent Consideration, Fair Value Disclosure	1,983	606
Convertible debt securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	2,527	3,174
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	2,527	3,174
Redeemable preferred shares [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	4,910	0
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	4,910	0
Other Acquisition 1 [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	1,100
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	$ 8,421

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Compensation Arrangements Compensation Arrangement Restricted Stock Award (Details) (Restricted Stock [Member], USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock [Member]
Restricted Stock [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	97,677
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(50,481)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(13,129)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	34,067	97,677
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	$ 14.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 14.54
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 17.07
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 15.53	$ 14.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$ 0.7	$ 4.1	$ 10.2

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Segment Information Depreciation and Amortization (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 144,921	$ 89,449	$ 55,801
North America [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	83,106	57,700	30,580
EMEA [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	24,849	24,157	17,546
ROW [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 36,966	$ 7,592	$ 7,675

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Investments Investments Table (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Sep. 30, 2013
Schedule of Cost and Equity Method Investments [Line Items]
Cost method investments	$ 15,630,000		$ 15,788,000			$ 128,100,000
Equity method investments	1,231,000		1,690,000		495,000
Total cost and equity method investments	16,861,000		17,478,000
Available-for-sale securities	7,437,000		3,174,000
Available-for-Sale Securities, Ownership Percentage			19.00%
Total investments	24,298,000		20,652,000
Payments to Acquire Available-for-sale Securities	4,599,000
Payments to Acquire Cost Method Investment		2,100,000.0		13,600,000		25,000,000
Convertible debt securities [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Available-for-sale securities	2,527,000		3,174,000
Convertible debt securities [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Available-for-sale securities			3,174,000
Redeemable preferred shares [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Available-for-sale securities	4,910,000		0
Maximum [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method Investments, Ownership Percentage	50.00%		50.00%
Available-for-Sale Securities, Ownership Percentage	19.00%
Maximum [Member] | Cost-method Investments [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method Investments, 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%
Minimum [Member] | Cost-method Investments [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method Investments, Ownership Percentage	6.00%		6.00%
F-Tuan [Member]
Schedule of Cost and Equity Method Investments [Line Items]
Cost method investments						128,100,000
Cost Method Investments, Ownership Percentage			19.10%			19.10%
Payments to Acquire Cost Method Investment						$ 25,000,000	$ 8,000,000

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Income Taxes Text (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ (20,057,000)	$ 62,021,000	$ 88,638,000
Income (Loss) from Continuing Operations before Income Taxes, Foreign	(28,138,000)	(80,930,000)	6,304,000
(Loss) income before provision for income taxes	(48,195,000)	(18,909,000)	94,942,000
Current Income Tax Expense (Benefit)	26,830,000	88,092,000	153,624,000
Deferred income taxes	(11,106,000)	(18,055,000)	(7,651,000)
Provision for income taxes	15,724,000	70,037,000	145,973,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal income tax (benefit) provision at statutory rate	(16,868,000)	(6,618,000)	33,230,000
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	4,815,000	14,299,000	10,565,000
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount			17,404,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	(10,051,000)	(5,361,000)	3,965,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	23,515,000	24,404,000	29,249,000
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	178,000	837,000	(487,000)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	13,098,000	35,158,000	31,011,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	6,503,000	9,000,000	14,641,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	(4,693,000)	(4,650,000)	0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	(773,000)	2,968,000	6,395,000
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals	32,379,000	65,356,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	6,911,000	13,462,000
Deferred Tax Assets, Operating Loss Carryforwards	221,674,000	152,271,000
Deferred Tax Assets, Goodwill and Intangible Assets	11,910,000	30,039,000
Deferred Tax Assets, Investments	1,441,000	3,730,000
Deferred Tax Assets, Unrealized Currency Losses	5,011,000	0
Deferred Tax Assets, Other	2,610,000	1,692,000
Deferred Tax Assets, Gross	281,936,000	266,550,000
Deferred Tax Assets, Valuation Allowance	(205,486,000)	(173,577,000)
Deferred Tax Assets, Net of Valuation Allowance	76,450,000	92,973,000
Deferred Tax Liabilities, Unrealized Currency Transaction Gains	0	(3,034,000)
Deferred Tax Liabilities, Prepaid Expenses	(1,455,000)	(1,078,000)
Deferred Tax Liabilities, Property, Plant and Equipment	(25,159,000)	(19,239,000)
Deferred Tax Liabilities, Tax Deferred Income	(25,013,000)	(64,154,000)
Deferred Tax Liabilities, Gross	(51,627,000)	(87,505,000)
Deferred Tax Assets, Net	24,823,000	5,468,000
Accumulated deficit	(921,960,000)	(848,870,000)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		9,600,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	121,200,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	270,500,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	714,900,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	110,305,000	85,481,000	55,127,000
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	5,489,000	10,494,000	602,000
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	(27,875,000)	(2,103,000)	(790,000)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	17,348,000	14,565,000	29,465,000
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	(6,946,000)
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation		1,868,000	1,077,000
Unrecognized tax benefits, ending balance	98,321,000	110,305,000	85,481,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	72,300,000	80,000,000	39,300,000
Income Tax Examination, Penalties and Interest Expense	1,100,000	3,300,000	2,300,000
Income Tax Examination, Penalties and Interest Accrued	5,700,000	5,300,000
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	21,000,000
Increase (Decrease) in Income Taxes	24,400,000
Potential Change in Unrecognized Tax Benefits	15,600,000
Undistributed Earnings of Foreign Subsidiaries	271,100,000
Current portion of unamortized tax effects on intercompany transactions	14,193,000	28,502,000
Prepaid Expenses and Other Current Assets [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions	14,193,000	28,500,000
Other Assets [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions		20,400,000
Future amortization through 2015 [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Current portion of unamortized tax effects on intercompany transactions	14,200,000
Domestic Tax Authority [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Increase (Decrease) in Income Taxes	7,700,000
Foreign Tax Authority [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Increase (Decrease) in Income Taxes	16,700,000
UNITED STATES
Current Income Tax Expense (Benefit)	(3,518,000)	22,321,000	41,551,000
Deferred income taxes	(5,132,000)	4,675,000	(2,977,000)
State and Local Jurisdiction [Member]
Current Income Tax Expense (Benefit)	69,000	1,693,000	4,778,000
Deferred income taxes	(742,000)	(5,687,000)	(236,000)
International [Domain]
Current Income Tax Expense (Benefit)	30,279,000	64,078,000	107,295,000
Deferred income taxes	$ (5,232,000)	$ (17,043,000)	$ (4,438,000)

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Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of Reportable Segments									3
Total revenue	$ 925,421	$ 757,054	$ 751,576	$ 757,637	$ 768,447	$ 595,059	$ 608,747	$ 601,402	$ 3,191,688		$ 2,573,655		$ 2,334,472
Segment cost of revenue and operating expenses									3,083,242	[1]	2,376,450	[1]	2,130,757	[1]
Segment operating income (loss)									108,446	[1]	197,205	[1]	203,715	[1]
Stock-based compensation									122,019		121,462		104,117
Acquisition-related expense (benefit), net									1,269		(11)		897
(Loss) income from operations	18,394	(5,429)	(7,854)	(19,953)	13,352	13,812	27,412	21,178	(14,842)		75,754		98,701
Other expense, net									(33,353)		(94,663)		(3,759)
(Loss) income before provision for income taxes									(48,195)		(18,909)		94,942
Provision for income taxes									15,724		70,037		145,973
Net loss									(63,919)		(88,946)		(51,031)
UNITED STATES
Segment Reporting Information [Line Items]
Total revenue									1,784,600		1,471,900		1,108,400
Switzerland
Segment Reporting Information [Line Items]
Total revenue									468,700
North America [Member]
Segment Reporting Information [Line Items]
Total revenue									1,824,461	[2]	1,521,358	[2]	1,165,700	[2]
Segment cost of revenue and operating expenses									1,755,113	[1]	1,380,746	[1]	1,025,974	[1]
Segment operating income (loss)									69,348	[1]	140,612	[1]	139,726	[1]
Stock-based compensation									99,939		90,877		65,127
Acquisition-related expense (benefit), net									1,125		1,285		(2,780)
EMEA [Member]
Segment Reporting Information [Line Items]
Total revenue									961,130		742,915		805,476
Segment cost of revenue and operating expenses									857,062	[1]	631,409	[1]	699,470	[1]
Segment operating income (loss)									104,068	[1]	111,506	[1]	106,006	[1]
Stock-based compensation									9,927		16,263		15,123
Acquisition-related expense (benefit), net									144		(1,296)		3,677
ROW [Member]
Segment Reporting Information [Line Items]
Total revenue									406,097		309,382		363,296
Segment cost of revenue and operating expenses									471,067	[1]	364,295	[1]	405,313	[1]
Segment operating income (loss)									(64,970)	[1]	(54,913)	[1]	(42,017)	[1]
Stock-based compensation									12,153		14,322		23,867
Acquisition-related expense (benefit), net									$ 0		$ 0		$ 0
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Concentration of risk, percentage									10.00%

[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 following table summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the years ended December 31, 2014, 2013 and 2012. (in thousands): Year Ended December 31, 2014 2013 2012 Stock-based compensation Acquisition-related Stock-based compensation Acquisition-related Stock-based compensation Acquisition-relatedNorth America $99,939 $1,125 $90,877 $1,285 $65,127 $(2,780)EMEA 9,927 144 16,263 (1,296) 15,123 3,677Rest of World 12,153 — 14,322 — 23,867 —Consolidated $122,019 $1,269 $121,462 $(11) $104,117 $897Acquisition-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.

[2] North America includes revenue from the United States of $1,784.6 million, $1,471.9 million and $1,108.4 million for the years ended December 31, 2014, 2013 and 2012 respectively. Beginning in September 2013, direct revenue transactions in the EMEA Goods category have been transacted through a Switzerland-based subsidiary. As a result, EMEA includes revenue from Switzerland of $468.7 million for the year ended December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total revenue for the years ended December 31, 2014, 2013 or 2012.

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Fair Value Measurements Fair Value, Reconciliation of Level 3 - Liabilities (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent Consideration, Beginning Value	$ 7,601	$ 606		$ 7,601		$ 11,230
Contingent Consideration, Issuances	3,567	4,388				3,400
Contingent Consideration, Settlements	(4,377)	(424)				(4,936)
Contingent Consideration, Reclass	(3,014)	(143)				(4,978)
(Gain) loss, net from changes in fair value of contingent consideration	(3,171)	(2,444)		(3,171)		897
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net						1,988
Contingent Consideration, Ending Value		1,983		606		7,601
Contingent Consideration, Unrealized Gain Loss		$ (2,405)	[1]	$ 360	[1]	$ 211	[1]

[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.

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Segment Information Total Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Segment Reporting Information [Line Items]
Total Assets	2,227,597		$ 2,042,010
UNITED STATES
Segment Reporting Information [Line Items]
Total Assets	1,120,400		1,231,300
North America [Member]
Segment Reporting Information [Line Items]
Total Assets	1,150,417	[1]	1,267,158	[1]
EMEA [Member]
Segment Reporting Information [Line Items]
Total Assets	552,486		616,126
ROW [Member]
Segment Reporting Information [Line Items]
Total Assets	524,694	[1]	158,726	[1]
Korea [Member]
Segment Reporting Information [Line Items]
Total Assets	388,000
Assets, Total [Member]
Segment Reporting Information [Line Items]
Concentration of risk, percentage	10.00%

[1] (1)North America contains assets from the United States of $1,120.4 million and $1,231.3 million as of December 31, 2014 and 2013, respectively. Rest of World contains assets from the Republic of Korea, including those assets acquired as a part of our acquisition of Ticket Monster described in Note 3 "Business Combinations," of $388.0 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of December 31, 2014 and 2013, respectively.

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Variable Interest Entity (Details)	12 Months Ended
	Dec. 31, 2014
Variable Interest Entity [Abstract]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	50.00%

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Compensation Arrangements Compensation Arrangement Restricted Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights	0.25
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value		$ 7.23	$ 8.99
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 139.8	$ 126.5	$ 50.2
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	41,648,055
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	29,568,490
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(17,323,096)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(12,555,522)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	41,337,927
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	$ 8.06
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 7.59
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 8.07
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 7.96
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 7.78

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Related Party Transactions (Notes)

12 Months Ended

Dec. 31, 2014

Related Party Transactions [Abstract]

Related Party Transactions Disclosure [Text Block]

RELATED PARTY TRANSACTIONS

Business Combination

During 2013, the Company acquired Boomerang, Inc., a Lightbank LLC portfolio company, for total cash consideration of $1.0 million. Eric Lefkofsky, the Company's current CEO and former Chairman, and Bradley Keywell, one of the Company's directors, co-founded Lightbank, a private investment firm specializing in information technology companies. They are the majority shareholders of Lightbank, and Mr. Keywell is the managing director.

Marketing Services

During 2011, the Company engaged InnerWorkings, Inc. ("InnerWorkings") to provide marketing services.  At that time Eric Lefkofsky was the Executive Chairman and a significant stockholder of InnerWorkings. Mr. Lefkofsky is no longer a director nor a significant stockholder in InnerWorkings.  The Company recognized $1.1 million of expense under its agreement with InnerWorkings for the year ended December 31, 2012.

Logistics Services

In connection with the Company's expansion of Goods offerings during 2012, the Company entered into a transportation and supply chain management agreement with Echo Global Logistics, Inc. ("Echo"). Eric Lefkofsky, Bradley Keywell and Peter Barris, one of the Company's other directors, either are currently or were previously directors of Echo and have direct and/or indirect ownership interests in Echo. The Company terminated its arrangement with Echo during 2012. Echo received payments of approximately $1.9 million for its services under the agreement for the year ended December 31, 2012, which were expensed by the Company through "Cost of revenue" on the consolidated statement of operations.

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Business Combinations and Acquisitions of Noncontrolling Interests Business Combinations (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Business Acquisition [Line Items]
Number of Businesses Acquired	6
Business Combination, External Transaction Costs	$ 3,713		$ 3,160
Purchase Price Allocation [Abstract]
Business Combination, Cash and Equivalents			2,000		2,000
Goodwill	447,810		220,827		206,684
Ticket Monster [Member]
Business Acquisition [Line Items]
Common stock issued in connection with acquisition of business, shares	13,825,283
Consideration Transferred [Abstract]
Business Combinations, cash transferred	96,496
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	162,862
Business Combination, Consideration Transferred	259,358
Purchase Price Allocation [Abstract]
Business Combination, Cash and Equivalents	24,768
Business Combination, Current Assets, Receivables	17,732
Business Combination, Current Assets, Deferred Income Taxes	1,264
Business Combination, Current Assets, Prepaid Expense and Other Assets	829
Business Combination, Property, Plant, and Equipment	5,944
Goodwill	218,692
Business Combination, Other Noncurrent Assets	3,033
Business Combination, Assets	381,356
Business Combination, Current Liabilities, Accounts Payable	5,951
Business Combination, Accrued Merchant and Supplier Payables	82,934
Business Combinations, Accrued Expenses	22,700
Business Combination, Current Liabilities, Other	3,482
Business Combination, Deferred Tax Liabilities Noncurrent	1,264
Business Combination, Noncurrent Liabilities, Other	5,667
Business Combination, Liabilities	121,998
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	259,358
Ticket Monster [Member] | Subscriber Relationships [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	57,022	[1]
Ticket Monster [Member] | Merchant Relationships [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	32,176	[1]
Ticket Monster [Member] | Developed Technology [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	571	[1]
Ticket Monster [Member] | Trade names [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	19,325	[1]
Ideeli [Member]
Consideration Transferred [Abstract]
Business Combination, Consideration Transferred	42,698
Purchase Price Allocation [Abstract]
Business Combination, Cash and Equivalents	79
Business Combination, Current Assets, Receivables	988
Business Combination, Current Assets, Deferred Income Taxes	640
Business Combination, Current Assets, Prepaid Expense and Other Assets	22,081
Business Combination, Property, Plant, and Equipment	8,173
Goodwill	4,203
Business Combination, Deferred Tax Assets Noncurrent	8,877
Business Combination, Assets	62,131
Business Combination, Current Liabilities, Accounts Payable	1,640
Business Combination, Accrued Merchant and Supplier Payables	4,092
Business Combinations, Accrued Expenses	9,118
Business Combination, Current Liabilities, Other	482
Business Combination, Deferred Tax Liabilities Noncurrent	348
Business Combination, Noncurrent Liabilities, Other	3,753
Business Combination, Liabilities	19,433
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	42,698
Ideeli [Member] | Subscriber Relationships [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	5,490	[1]
Ideeli [Member] | Brand Relationships [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	7,100	[1]
Ideeli [Member] | Trade names [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	4,500	[1]
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Common stock issued in connection with acquisition of business, shares	1,429,897
Number of Businesses Acquired	4		7		10
Consideration Transferred [Abstract]
Business Combinations, cash transferred	17,364		9,459		49,013
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	11,110		3,051
Business Combination, Consideration Transferred, Liabilities Incurred					2,485
Business Combination, Contingent Consideration	4,388		3,567		3,400
Business Combination, Consideration Transferred	32,862		16,077		54,898
Purchase Price Allocation [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	(396)		1,728		1,750
Business Combination, Cash and Equivalents	200
Business Combination, Property, Plant, and Equipment			99		165
Goodwill	27,150		9,504		39,170
Business Combination, Deferred Tax Liabilities Noncurrent	398		731		2,207
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	32,862		16,077		54,898
Series of Individually Immaterial Business Acquisitions [Member] | Subscriber Relationships [Member]
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	2,555	[2]	1,928	[2]	170	[2]
Series of Individually Immaterial Business Acquisitions [Member] | Merchant Relationships [Member]
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets			757	[2]	1,500	[2]
Series of Individually Immaterial Business Acquisitions [Member] | Developed Technology [Member]
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	3,372	[2]	2,742	[2]	14,350	[2]
Series of Individually Immaterial Business Acquisitions [Member] | Brand Relationships [Member]
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets	579	[2]
Series of Individually Immaterial Business Acquisitions [Member] | Other Intangible Assets [Member]
Purchase Price Allocation [Abstract]
Business Combination, Intangible assets			$ 50	[2]
Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days
Maximum [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days		5 years 0 months 0 days		5 years 0 months 0 days
Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year 0 months 0 days
Minimum [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year 0 months 0 days		1 year 0 months 0 days		1 year 0 months 0 days

[1] The estimated useful lives of the acquired intangible assets are 5 years for subscriber relationships, 3 years for merchant relationships, 2 years for developed technology and 5 years for trade name.

[2] Acquired intangible assets have estimated useful lives of between 1 and 5 years.

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Loss Per Share of Class A and Class B Common Stock (Tables)

12 Months Ended

Dec. 31, 2014

LOSS PER SHARE OF CLASS A AND CLASS B COMMON STOCK [Abstract] [Abstract]

Schedule of Earnings per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted loss per share of Class A and Class B common stock for the years endedDecember 31, 2014, 2013 and 2012 (in thousands, except share amounts and per share amounts):

	Year Ended December 31,
	2014						2013						2012
	Class A			Class B			Class A			Class B			Class A			Class B
Basic loss per share:
Numerator
Allocation of net loss	$	(63,691	)	$	(228	)	$	(88,626	)	$	(320	)	$	(50,842	)	$	(189	)
Less: Allocation of adjustment of redeemable noncontrolling interests to redemption value	—			—			—			—			12,557			47
Less: Allocation of net income attributable to noncontrolling interests	9,138			33			6,424			23			3,728			14
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Basic loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)
Diluted loss per share:
Numerator
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B(1)	—			—			—			—			—			—
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding used in basic computation	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Conversion of Class B(1)	—			—			—			—			—			—
Employee stock options(1)	—			—			—			—			—			—
Restricted shares and RSUs(1)	—			—			—			—			—			—
Weighted-average diluted shares outstanding(1)	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Diluted loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)

(1) Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted loss per share calculation for the years endedDecember 31, 2014, 2013 and 2012 because the effect would be antidilutive.

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following outstanding equity awards are not included in the diluted loss per share calculation above because they would have had an antidilutive effect:

	Year Ended December 31,
	2014	2013	2012
Stock options	2,775,771	5,594,033	7,713,421
Restricted stock units	42,341,320	39,618,897	29,699,348
Restricted stock	52,854	298,292	577,048
ESPP shares	507,916	444,439	271,402
Total	45,677,861	45,955,661	38,261,219

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Compensation Arrangements Swiss Pension Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Benefit Obligation	$ 4.9
Defined Benefit Plan, Unfunded Plan	2.0
Defined Benefit Plan, Net Periodic Benefit Cost	$ 0.6

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Compensation Arrangements Compensation Arrangements Restricted Stock Activity (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The table below summarizes activity regarding unvested restricted stock units under the Plans for the year ended December 31, 2014:

	Restricted Stock Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	41,648,055		$	8.06
Granted	29,568,490		$	7.59
Vested	(17,323,096	)	$	8.07
Forfeited	(12,555,522	)	$	7.96
Unvested at December 31, 2014	41,337,927		$	7.78

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Business Combinations and Acquisitions of Noncontrolling Interests Business Combinations and Acquisitions of Noncontrolling interests Purchases of Additional Interests in Consolidated Subsidiaries (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2013
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent	$ 3.9	$ 16.7
Cash Payment [Member]
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent		14.1	2.0
Stock-based compensation awards settlement		14.0	1.2
Common Class A [Member]
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent		0.6
Stock-based compensation awards settlement		2.3
Deferred Compensation, Share-based Payments [Member]
Business Acquisition [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense		10.5
Cash [Member]
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent	2.3	16.1
Stock-based compensation awards settlement		15.2
Other Current Liabilities [Member]
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent	1.0
Other Noncurrent Liabilities [Member]
Business Acquisition [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent	$ 0.6

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Stockholders' Equity Initial Public Offering, Convertible Preferred Stock and Common Stock (Details)	12 Months Ended
	Dec. 31, 2012 NumberofClasses	Dec. 31, 2014
Preferred Stock, Shares Authorized		50,000,000
Classes of common stock, number	3

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Supplemental Consolidated Balance Sheet and Statement of Operations Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Interest and Other Income [Abstract]
Interest income			$ 1,564		$ 1,721		$ 2,522
Interest expense			(907)		(291)		0
Gain on E-Commerce transaction			0		0		56,032
Impairments of investment	(85,500)		(2,036)		(85,925)		(50,553)
Loss on equity method investments			(459)		(44)		(9,925)
Foreign exchange (losses) gains, net			(31,526)		(10,271)		1,403
Other Income			11		147
Other Expenses							(3,238)
Other expense, net			(33,353)		(94,663)		(3,759)
Prepaid Expense and Other Assets, Current [Abstract]
Current portion of unamortized tax effects on intercompany transactions	28,502		14,193		28,502
Finished goods inventories	57,097		57,134		57,097
Prepaid expenses	29,404		42,231		29,404
Restricted cash	14,579		12,019		14,579
Income taxes receivable	39,994		41,788		39,994
VAT receivable	12,966		17,746		12,966
Prepaid marketing	17,301		7,443		17,301
Other	10,572		15,437		10,572
Total prepaid expenses and other current assets	210,415		207,991		210,415
Merchant and Supplier Payables [Abstract]
Accrued merchant payables	518,233		632,605		518,233
Accrued supplier payables	234,710	[1]	277,962	[1]	234,710	[1]
Total accrued merchant and supplier payables	752,943		910,567		752,943
Accrued Expenses [Abstract]
Marketing	12,001		15,962		12,001
Refunds reserve	38,597		33,238		38,597
Payroll and benefits	64,966		65,743		64,966
Customer credits	44,728		44,463		44,728
Professional fees	18,906		14,292		18,906
Other	47,788		56,654		47,788
Total accrued expenses	226,986		230,352		226,986
Current liabilities [Abstract]:
Income taxes payable	21,994		14,461		21,994
VAT payable	37,627		33,436		37,627
Sales taxes payable	10,412		9,042		10,412
Deferred revenue	47,259		43,903		47,259
Capital lease obligations	3,636		14,872		3,636
Other	11,790		14,598		11,790
Total other current liabilities	132,718		130,312		132,718
Liabilities, Noncurrent [Abstract]
Long-term tax liabilities	109,286		82,138		109,286
Deferred rent	9,148		13,200		9,148
Capital lease obligations	5,665		23,387		5,665
Other	7,598		17,559		7,598
Total other non-current liabilities	131,697		136,284		131,697
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments, beginning of period			24,952		12,393
Unrealized loss on available-for-sale securities, net of tax, beginning of period			(122)		53
Accumulated other comprehensive income (loss), pension and other postretirement benefit plans, net of tax, beginning of period			0		0
Accumulated other comprehensive income, beginning of period			24,830		12,446
Foreign currency translation adjustments			11,625		12,933		425
Other comprehensive income (loss) before reclassification adjustments			10,102
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax			(1,500)		0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax			1,500		0		0
Reclassification adjustment for impairment included in net loss			831		0		0
Other comprehensive income			10,746		12,758		478
Foreign currency translation adjustments, end of period	24,952		36,764		24,952		12,393
Unrealized loss on available-for-sale securities, net of tax, end of period	(122)		499		(122)		53
Accumulated other comprehensive income (loss), pension and other postretirement benefit plans, net of tax, end of period	0		(1,500)		0		0
Accumulated other comprehensive income, end of period	24,830		35,763		24,830		12,446
Other-than-temporary impairment of available-for-sale security			1,340		0		0
Tax effect			(509)		0		0
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments			11,812		12,559
Other comprehensive income (loss) before reclassification adjustments			11,812
Reclassification adjustment for impairment included in net loss			0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gain (loss) on available-for-sale debt security, net of tax			621		(175)
Other comprehensive income (loss) before reclassification adjustments			(210)
Reclassification adjustment for impairment included in net loss			831
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Reclassification adjustment for impairment included in net loss			0
Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments			(11,812)		(12,559)		535
Unrealized gain (loss) on available-for-sale debt security, net of tax			621		(175)		53
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax			1,500
Other comprehensive income			$ 10,933		$ 12,384

[1] (1)Amounts include payables to suppliers of inventories and providers of shipping and fulfillment services.

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Summary of Significant Accounting Policies Restricted Cash (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Current	$ 12,019,000	$ 14,579,000
Restricted Cash and Cash Equivalents, Noncurrent	$ 5,200,000	$ 400,000

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Description of Business and Basis of Presentation

12 Months Ended

Dec. 31, 2014

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION [Abstract]

Description of Business and Basis of Presentation [Text Block]

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 16 "Segment Information."

XML

Commitments and Contingencies Operating Leases (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 55,000,000	$ 42,300,000	$ 43,100,000
Amortization period of leasehold improvements	5 years 0 months 0 days
2015	53,776,000
2016	49,094,000
2017	38,628,000
2018	27,659,000
2019	11,455,000
Thereafter	21,514,000
Total minimum lease payments	$ 202,126,000
Maximum [Member]
Operating Leased Assets [Line Items]
Rent Escalation	9.00%
Lessee Leasing Arrangements, Operating Leases, Term of Contract	7 years 0 months 0 days
Lessee Leasing Arrangements, Operating Leases, Renewal Term	5 years 0 months 0 days
Minimum [Member]
Operating Leased Assets [Line Items]
Rent Escalation	2.00%
Lessee Leasing Arrangements, Operating Leases, Term of Contract	5 years 0 months 0 days
Lessee Leasing Arrangements, Operating Leases, Renewal Term	1 year 0 months 0 days

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

SEGMENT INFORMATION [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Revenue and profit or loss information by reportable segment reconciled to consolidated net loss for the years endedDecember 31, 2014, 2013 and 2012 were as follows (in thousands):    

	Year Ended December 31,
	2014			2013			2012
North America
Revenue(1)	$	1,824,461		$	1,521,358		$	1,165,700
Segment cost of revenue and operating expenses(2)	1,755,113			1,380,746			1,025,974
Segment operating income(2)	69,348			140,612			139,726
EMEA
Revenue(1)	961,130			742,915			805,476
Segment cost of revenue and operating expenses(2)	857,062			631,409			699,470
Segment operating income(2)	104,068			111,506			106,006
Rest of World
Revenue	406,097			309,382			363,296
Segment cost of revenue and operating expenses(2)	471,067			364,295			405,313
Segment operating loss(2)	(64,970		)	(54,913		)	(42,017		)
Consolidated
Revenue	3,191,688			2,573,655			2,334,472
Segment cost of revenue and operating expenses(2)	3,083,242			2,376,450			2,130,757
Segment operating income(2)	108,446			197,205			203,715
Stock-based compensation	122,019			121,462			104,117
Acquisition-related expense (benefit), net	1,269			(11		)	897
(Loss) income from operations	(14,842		)	75,754			98,701
Other expense, net	(33,353		)	(94,663		)	(3,759		)
(Loss) income before provision for income taxes	(48,195		)	(18,909		)	94,942
Provision for income taxes	15,724			70,037			145,973
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)

(1) North America includes revenue from the United States of $1,784.6 million, $1,471.9 million and $1,108.4 million for the years endedDecember 31, 2014, 2013 and 2012 respectively. Beginning in September 2013, direct revenue transactions in the EMEA Goods category have been transacted through a Switzerland-based subsidiary. As a result, EMEA includes revenue from Switzerland of $468.7 million for the year endedDecember 31, 2014. There were no other individual countries that represented more than 10% of consolidated total revenue for the years ended December 31, 2014, 2013 or 2012.

(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 following table summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the years endedDecember 31, 2014, 2013 and 2012. (in thousands):

Stock Based Compensation and Acquisition Related by Segment [Table Text Block]

The following table summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the years endedDecember 31, 2014, 2013 and 2012. (in thousands):

	Year Ended December 31,
	2014				2013					2012
	Stock-based compensation		Acquisition-related		Stock-based compensation		Acquisition-related			Stock-based compensation		Acquisition-related
North America	$	99,939	$	1,125	$	90,877	$	1,285		$	65,127	$	(2,780	)
EMEA	9,927		144		16,263		(1,296		)	15,123		3,677
Rest of World	12,153		—		14,322		—			23,867		—
Consolidated	$	122,019	$	1,269	$	121,462	$	(11	)	$	104,117	$	897

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 [Table Text Block]

The following table summarizes the Company's total assets by reportable segment as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	1,150,417	$	1,267,158
EMEA	552,486		616,126
Rest of World (1)	524,694		158,726
Consolidated total assets	$	2,227,597	$	2,042,010

(1) North America contains assets from the United States of $1,120.4 million and $1,231.3 million as of December 31, 2014 and 2013, respectively. Rest of World contains assets from the Republic of Korea, including those assets acquired as a part of our acquisition of Ticket Monster described in Note 3 "Business Combinations," of $388.0 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of December 31, 2014 and 2013, respectively.

Schedule of Long-lived Assets by Segment[Table Text Block]

The following table summarizes the Company's tangible property and equipment, net of accumulated depreciation and amortization, by reportable segment as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	63,915	$	43,126
EMEA (2)	28,721		23,413
Rest of World	11,167		9,100
Consolidated total	$	103,803	$	75,639

(1) Substantially all tangible property and equipment within North America is located in the United States.

(2) Tangible property and equipment, net located within Ireland represented approximately 12% of the Company's consolidated tangible property and equipment, net as of December 31, 2014. Tangible property and equipment, net located within Switzerland represented approximately 11% of the Company's consolidated tangible property and equipment, net as of December 31, 2013. There were no other individual countries located outside of the United States that represented more than 10% of consolidated tangible property and equipment, net as of December 31, 2014 and 2013.

Property, Plant and Equipment and Intangible Asset Depreciation and Amortization [Table Text Block]

The following table summarizes depreciation and amortization of property, equipment and software and intangible assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	83,106	$	57,700	$	30,580
EMEA	24,849		24,157		17,546
Rest of World	36,966		7,592		7,675
Consolidated total	$	144,921	$	89,449	$	55,801

Schedule of capital expenditures [Table Text Block]

The following table summarizes the Company's expenditures for additions to tangible long-lived assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	6,775	$	14,728	$	38,543
EMEA	12,945		6,719		26,909
Rest of World	11,616		7,469		3,875
Consolidated total	$	31,336	$	28,916	$	69,327

Revenue by Segment and Category [Table Text Block]

The following table summarizes the Company's third party and other and direct revenue by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America						EMEA						Rest of World						Consolidated
	Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,
	2014		2013		2012		2014		2013		2012		2014		2013		2012		2014		2013		2012
Local (1):
Third party and other	$	674,605	$	671,846	$	665,587	$	391,179	$	430,020	$	501,782	$	167,552	$	182,010	$	221,859	$	1,233,336	$	1,283,876	$	1,389,228
Direct	—		1,772		12,037		—		—		—		—		—		—		—		1,772		12,037
Total	674,605		673,618		677,624		391,179		430,020		501,782		167,552		182,010		221,859		1,233,336		1,285,648		1,401,265
Goods:
Third party	5,966		17,409		60,269		63,650		133,117		186,495		146,984		69,344		87,746		216,600		219,870		334,510
Direct	1,074,913		774,023		391,239		442,344		115,881		36,393		46,892		27,325		10,821		1,564,149		917,229		438,453
Total	1,080,879		791,432		451,508		505,994		248,998		222,888		193,876		96,669		98,567		1,780,749		1,137,099		772,963
Travel:
Third party	68,977		56,308		36,568		63,957		63,897		76,553		44,669		30,703		42,870		177,603		150,908		155,991
Direct	—		—		—		—		—		4,253		—		—		—		—		—		4,253
Total	68,977		56,308		36,568		63,957		63,897		80,806		44,669		30,703		42,870		177,603		150,908		160,244
Total revenue	$	1,824,461	$	1,521,358	$	1,165,700	$	961,130	$	742,915	$	805,476	$	406,097	$	309,382	$	363,296	$	3,191,688	$	2,573,655	$	2,334,472

(1) Includes revenue from deals with local and national merchants and through local events.

Gross Profit by Segment and Category [Table Text Block]

The following table summarizes the Company's gross profit by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America							EMEA							Rest of World									Consolidated
	Year Ended   December 31,							Year Ended   December 31,							Year Ended   December 31,									Year Ended   December 31,
	2014		2013			2012		2014		2013		2012			2014			2013			2012			2014		2013			2012
Local (1):
Third party and other	$	581,067	$	582,723		$	541,716	$	364,545	$	383,725	$	453,970		$	138,527		$	153,406		$	173,735		$	1,084,139	$	1,119,854		$	1,169,421
Direct	—		(782		)	1,909		—		—		—			—			—			—			—		(782		)	1,909
Total	581,067		581,941			543,625		364,545		383,725		453,970			138,527			153,406			173,735			1,084,139		1,119,072			1,171,330
Goods:
Third party	5,112		15,319			48,288		55,434		116,357		168,429			91,486			39,699			66,271			152,032		171,375			282,988
Direct	88,810		66,753			36,188		77,706		13,194		(2,521		)	(2,984		)	(224		)	(2,563		)	163,532		79,723			31,104
Total	93,922		82,072			84,476		133,140		129,551		165,908			88,502			39,475			63,708			315,564		251,098			314,092
Travel:
Third party	56,994		48,824			27,208		59,229		56,850		68,777			33,260			25,689			33,596			149,483		131,363			129,581
Direct	—		—			—		—		—		529			—			—			—			—		—			529
Total	56,994		48,824			27,208		59,229		56,850		69,306			33,260			25,689			33,596			149,483		131,363			130,110
Total gross profit	$	731,983	$	712,837		$	655,309	$	556,914	$	570,126	$	689,184		$	260,289		$	218,570		$	271,039		$	1,549,186	$	1,501,533		$	1,615,532

(1) Includes gross profit from deals with local and national merchants and through local events.

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Business Combinations and Acquisitions of Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Schedule of Business Acquisitions, Consideration Transferred

The aggregate acquisition-date fair value of the consideration transferred for the Ticket Monster acquisition totaled $259.4 million, which consisted of the following (in thousands):

Cash	$	96,496
Issuance of 13,825,283 shares of Class A common stock	162,862
Total	$	259,358

The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $32.9 million, which consisted of the following (in thousands):

Cash	$	17,364
Issuance of 1,429,897 shares of Class A common stock	11,110
Contingent consideration	4,388
Total	$	32,862

The fair value of the Class A Common Stock issued as consideration for one of the acquisitions was measured based on the stock price upon closing of the related transaction on November 13, 2014.

The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $54.9 million, which consisted of the following (in thousands):

Cash	$	49,013
Purchase price obligations	2,485
Contingent consideration	3,400
Total	$	54,898

The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $16.1 million, which consisted of the following (in thousands):

Cash	$	9,459
Issuance of Class A common stock	3,051
Contingent consideration	3,567
Total	$	16,077

Schedule of Business Acquisitions, Purchase Price Allocation

The following table summarizes the allocation of the aggregate acquisition price of the Ideel acquisition (in thousands):

Cash and cash equivalents	$	79
Accounts receivable	988
Deferred income taxes	640
Prepaid expenses and other current assets	22,081
Property, equipment and software	8,173
Goodwill	4,203
Intangible assets:(1)
Subscriber relationships	5,490
Brand relationships	7,100
Trade name	4,500
Deferred income taxes, non-current	8,877
Total assets acquired	$	62,131
Accounts payable	$	1,640
Accrued supplier payables	4,092
Accrued expenses	9,118
Other current liabilities	482
Deferred income taxes, non-current	348
Other non-current liabilities	3,753
Total liabilities assumed	$	19,433
Total acquisition price	$	42,698

(1) The estimated useful lives of the acquired intangible assets are 3 years for subscriber relationships, 5 years for brand relationships and 5 years for trade name.

The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2013 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,728
Property and equipment	99
Goodwill	9,504
Intangible assets: (1)
Subscriber relationships	1,928
Merchant relationships	757
Developed technology	2,742
Other intangible assets	50
Net deferred tax liabilities	(731		)
Total acquisition price	$	16,077

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

The following table summarizes the allocation of the aggregate acquisition price of the Ticket Monster acquisition (in thousands):

Cash and cash equivalents	$	24,768
Accounts receivable	17,732
Deferred income taxes	1,264
Prepaid expenses and other current assets	829
Property, equipment and software	5,944
Goodwill	218,692
Intangible assets:(1)
Subscriber relationships	57,022
Merchant relationships	32,176
Developed technology	571
Trade name	19,325
Other non-current assets	3,033
Total assets acquired	$	381,356
Accounts payable	$	5,951
Accrued merchant and supplier payables	82,934
Accrued expenses	22,700
Other current liabilities	3,482
Deferred income taxes, non-current	1,264
Other non-current liabilities	5,667
Total liabilities assumed	$	121,998
Total acquisition price	$	259,358

(1) The estimated useful lives of the acquired intangible assets are 5 years for subscriber relationships, 3 years for merchant relationships, 2 years for developed technology and 5 years for trade name.

The following table summarizes the allocation of the aggregate purchase price of these other acquisitions (in thousands):

Net working capital (including acquired cash of $0.2 million)	$	(396	)
Goodwill	27,150
Intangible assets: (1)
Subscriber relationships	2,555
Developed technology	3,372
Brand relationships	579
Deferred income taxes, non-current	(398		)
Total purchase price	$	32,862

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2012 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,750
Property and equipment	165
Goodwill	39,170
Intangible assets:(1)
Subscriber relationships	170
Merchant relationships	1,500
Developed technology	14,350
Net deferred tax liabilities	(2,207		)
Total acquisition price	$	54,898

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Business Acquisition, Pro Forma Information [Table Text Block]

The following unaudited pro forma information presents the combined operating results of the Company for the year endedDecember 31, 2013, as if the Company had acquired Ticket Monster and Ideel as of January 1, 2013 (in thousands). Pro forma results of operations have not been presented for the year ended December 31, 2014, because the operating results of Ticket Monster and Ideel from January 1, 2014 through their respective acquisition dates were not material to the Company's consolidated results of operations for the year ended December 31, 2014. The underlying pro forma results include the historical financial results of the Company and these two acquired businesses adjusted for depreciation and amortization expense associated with the assets acquired. The unaudited pro forma results do not reflect any operating efficiencies or potential cost savings which may result from the consolidation of the operations of the Company and the acquired entities. Accordingly, these unaudited pro forma results are not necessarily indicative of what the actual results of operations of the combined company would have been if the acquisitions had occurred as of January 1, 2013, nor are they indicative of future results of operations.

	Year Ended   December 31, 2013
Revenue	$	2,763,639
Net loss	(217,613		)

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Summary of Significant Accounting Policies [Abstract]

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

The 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 consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles ("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 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 either the equity method, the cost method or as available-for-sale securities, as appropriate.

Reclassification, Policy [Policy Text Block]

Reclassifications

Certain reclassifications have been made to the consolidated financial statements of prior years and the accompanying notes to conform to the current year presentation.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the consolidated financial statements and accompanying notes. Estimates are 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.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

The Company considers all highly‑liquid investments with an original maturity of three months or less from the date of purchase to be cash equivalents. The Company's cash equivalents primarily include holdings in money market funds and overnight securities.

Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]

Accounts Receivable, Net

Accounts receivable primarily represents the net cash due from the Company's credit card and other payment processors for cleared transactions. The carrying amount of the Company's receivables is reduced by an allowance for doubtful accounts that reflects management's best estimate of amounts that will not be collected. The allowance is based on historical loss experience and any specific risks identified in collection matters. Accounts receivable are charged off against the allowance for doubtful accounts when it is determined that the receivable is uncollectible. The Company's allowance for doubtful accounts as of December 31, 2014 and 2013 was $2.2 million and $0.7 million, respectively. Bad debt expense for the years ended December 31, 2014, 2013 and 2012 was $2.3 million, $0.7 million and $0.6 million, respectively.

Inventory, Policy [Policy Text Block]

Inventories

 Inventories, consisting of merchandise purchased for resale, are accounted for using the first-in-first-out ("FIFO") method of accounting and are valued at the lower of cost or market value. The Company writes down its inventory for estimated obsolescence and to the lower of cost or market value based upon assumptions about future demand and market conditions. If actual market conditions are less favorable than those projected by management, additional inventory write-downs may be required. Once established, the original cost of the inventory less the related inventory allowance represents a new cost basis.

Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]

Restricted Cash

The Company had $12.0 million and $5.2 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2014. The Company had $14.6 million and $0.4 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2013. Restricted cash primarily represents amounts that the Company is unable to access for operational purposes pursuant to contractual arrangements with certain financial institutions and with entities that process merchant payments on the Company's behalf.

Internal Use Software, Policy [Policy Text Block]

Internal-Use Software

The Company incurs costs related to internal-use software and website development, including purchased software and internally-developed software. Costs incurred in the planning and evaluation stage of internally-developed software and website development are expensed as incurred. Costs incurred and accumulated during the application development stage are capitalized and included within "Property, equipment and software, net" on the consolidated balance sheets. Capitalized internally-developed software and website development costs are amortized over their expected economic life of two years using the straight-line method.

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Goodwill

Goodwill is allocated to the Company's reporting units at the date the goodwill is initially recorded. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill.

The Company evaluates goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company has the option to assess goodwill for impairment by first performing a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount. If the Company determines that it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then further goodwill impairment testing is not required to be performed. If the Company determines that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, or if the Company does not elect the option to perform an initial qualitative assessment, the Company is required to perform a two-step goodwill impairment test. In the first step, the fair value of the reporting unit is compared to its book value including goodwill. If the fair value of the reporting unit is in excess of its book value, the related goodwill is not impaired and no further analysis is necessary. If the fair value of the reporting unit is less than its book value, there is an indication of potential impairment and a second step is performed. When required, the second step of testing involves calculating the implied fair value of goodwill for the reporting unit. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets and identifiable intangible assets as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. For reporting units with a negative book value (i.e., excess of liabilities over assets), qualitative factors are evaluated to determine whether it is necessary to perform the second step of the goodwill impairment test.

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Impairment of Long-Lived Assets

Long‑lived assets, such as property, equipment and software and intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. If circumstances require that a long‑lived asset or asset group be tested for possible impairment, the Company first compares the undiscounted cash flows expected to be generated by that long-lived asset or asset group to its carrying amount. If the carrying amount of the long‑lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair value.

Investment, Policy [Policy Text Block]

Investments

Investments in nonmarketable equity shares with no redemption provisions that are not common stock or in-substance common stock or for which the Company does not have the ability to exercise significant influence are accounted for using the cost method of accounting and classified within "Investments" on the consolidated balance sheets. Under the cost method of accounting, investments are carried at cost and are adjusted only for other-than-temporary declines in fair value, certain distributions and additional investments.

Investments in common stock or in-substance common stock for which the Company has the ability to exercise significant influence are accounted for under the equity method and classified within "Investments" on the consolidated balance sheets. The Company's proportionate share of income or loss on equity method investments is presented within "Other expense, net" on the consolidated statements of operations.

The Company has investments in convertible debt securities and convertible redeemable preferred shares issued by nonpublic entities and has categorized these investments as available-for-sale securities, which are classified within "Investments" on the consolidated balance sheets. Available-for-sale securities are recorded at fair value each reporting period. Unrealized gains and losses, net of the related tax effects, are excluded from earnings and recorded as a separate component within "Accumulated other comprehensive income" on the consolidated balance sheets until realized. Interest income is reported within "Other expense, net" on the consolidated statements of operations.

Other-than-temporary Impairment for Investments [Policy Text Block]

Other-than-Temporary Impairment of Investments

An unrealized loss exists when the current fair value of an investment is less than its amortized cost basis. The Company conducts reviews of its investments with unrealized losses on a quarterly basis to evaluate whether those impairments are other-than-temporary. This evaluation, which is performed at the individual investment level, consists of several qualitative and quantitative factors regarding the severity and duration of the unrealized loss as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Evidence considered in this evaluation includes the amount of the impairment, the length of time that the investment has been impaired, the factors contributing to the impairment, the financial condition and near-term prospects of the investee, recent operating trends and forecasted performance of the investee, market conditions in the geographic area or industry in which the investee operates, and the Company's strategic plans for holding the investment in relation to the period of time expected for an anticipated recovery in value. Additionally, the Company considers whether it intends to sell the investment or whether it is more-likely-than-not that the Company will be required to sell the investment before recovery of the amortized cost basis. Investments with unrealized losses that are determined to be other-than-temporary are written down to fair value with a charge to earnings. Unrealized losses that are determined to be temporary in nature are not recorded for cost method investments and equity method investments, while such losses are recorded, net of tax, in accumulated other comprehensive income for available-for-sale securities.

Income Tax, Policy [Policy Text Block]

Income Taxes

The provision for income taxes is determined using the asset and liability method. Under this method, deferred tax assets and liabilities are calculated based upon the temporary differences between the financial statement and income tax bases of assets and liabilities using the enacted tax rates that are applicable in a given year. The deferred tax assets are recorded net of a valuation allowance when, based on the weight of available evidence, the Company believes it is more-likely-than-not that some portion or all of the recorded deferred tax assets will not be realized in future periods. The Company considers many factors when assessing the likelihood of future realization of its deferred tax assets, including recent cumulative earnings experience, expectations of future taxable income and capital gains by taxing jurisdiction, the carry‑forward periods available for tax reporting purposes, the ability to carryback losses and other relevant factors. The Company allocates its valuation allowance to current and non-current deferred tax assets on a pro-rata basis. A change in the estimate of future taxable income may require an increase or decrease to the valuation allowance.

The Company utilizes a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more-likely-than-not that the position will be sustained on audit, including resolution of related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount which is more than 50% likely of being realized upon ultimate settlement. The Company includes interest and penalties related to uncertain tax positions within "Provision for income taxes" on the consolidated statements of operations. See Note 12 "Income Taxes."

Lease, Policy [Policy Text Block]

Lease and Asset Retirement Obligations

The Company categorizes leases at their inception as either operating or capital leases and may receive renewal or expansion options, rent holidays, and leasehold improvement and other incentives on certain lease agreements. The Company recognizes lease costs on a straight-line basis, taking into account adjustments for free or escalating rental payments and deferred payment terms. Additionally, lease incentives are accounted for as a reduction of lease costs over the term of the agreement. Leasehold improvements are capitalized at cost and amortized over the shorter of their useful life or the non-cancellable term of the lease. The Company records rent expense associated with operating lease obligations primarily within "Selling, general and administrative" on the consolidated statements of operations.

The Company establishes assets and liabilities for the present value of estimated future costs to retire long-lived assets at the termination or expiration of a lease. Such assets are amortized over the lease term, and the recorded liabilities are accreted to the future value of the estimated retirement costs. The related amortization and accretion expenses are presented within "Selling, general and administrative" on the consolidated statements of operations.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

The Company recognizes revenue when the following criteria are met: persuasive evidence of an arrangement exists; delivery has occurred; the selling price is fixed or determinable; and collection is reasonably assured.

Third party revenue recognition

The Company generates third party revenue, where it acts as a third party marketing agent, by offering goods and services provided by third party merchants at a discount through its online local commerce marketplaces that connect merchants to consumers. The Company's marketplaces include deals offered through a variety of categories including: Local, Goods and Travel. Customers purchase the discount vouchers ("Groupons") from the Company and redeem them with the Company's merchants.

The revenue recognition criteria are met when the customer purchases a deal, the Groupon has been electronically delivered to the purchaser and a listing of Groupons sold has been made available to the merchant. At that time, the Company's obligations to the merchant, for which it is serving as a marketing agent, are substantially complete. The Company's remaining obligations, which are limited to remitting payment to the merchant and continuing to make available on the Company's website information about Groupons sold that was previously provided to the merchant, are inconsequential or perfunctory. For a portion of the hotel deals offered through the Company's online local marketplaces, the Company facilitates the booking of rooms by taking reservations through its websites. Such reservations are generally cancelable at any time prior to check-in and the Company defers the revenue on those deals until the customer's stay occurs.

.    The Company records as revenue the net amount it retains from the sale of Groupons after deducting the portion of the purchase price that is payable to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Revenue is presented on a net basis because the Company is acting as a marketing agent of the merchant in the transaction.

For merchant payment arrangements that are structured under a redemption model, merchants are not paid until the customer redeems the Groupon that has been purchased. If a customer does not redeem the Groupon under this payment model, the Company retains all the gross billings. The Company recognizes incremental revenue from unredeemed Groupons and derecognizes the related accrued merchant payable when its legal obligation to the merchant expires, which the Company believes is shortly after deal expiration in most jurisdictions that have payment arrangements structured under a redemption model.     

Direct revenue recognition

The Company evaluates whether it is appropriate to record the gross amount of its sales and related costs by considering a number of factors, including, among other things, whether the Company is the primary obligor under the arrangement, has inventory risk and has latitude in establishing prices. Direct revenue is derived primarily from selling consumer products through the Company's Goods category where the Company is the merchant of record. The Company is the primary obligor in these transactions, is subject to general inventory risk and has latitude in establishing prices. Accordingly, direct revenue is presented on a gross basis, excluding applicable taxes and net of estimated refunds. Direct revenue, including associated shipping revenue, is recognized when title passes to the customer upon delivery of the product.

Other revenue recognition

Advertising revenue is recognized when the advertiser's logo or website link has been included on the Company's websites or in specified email distributions for the requisite period of time as set forth in the agreement with the advertiser. Commission revenue is earned when customers make purchases with retailers using coupons accessed through the Company's websites and mobile applications. Revenue from payment processing is earned on a per transaction basis. The Company recognizes revenue from those activities when the underlying transactions are completed. Revenue from point of sale solutions is recognized on a subscription basis over the term of the arrangement with the merchant.

Discounts

The Company provides discount offers to encourage purchases of goods and services through its marketplaces. The Company records discounts as a reduction of revenue.

Cost of Sales, Policy [Policy Text Block]

Cost of revenue

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue transactions, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating the Company's fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees, are allocated to cost of third party revenue, direct revenue and other revenue in proportion to gross billings during the period.

Technology costs within cost of revenue consist of a portion of the payroll and stock‑based compensation expense related to the Company's technology support personnel who are responsible for operating and maintaining the infrastructure of the Company's websites. Technology costs also include a portion of amortization expense from internal-use software, primarily related to website development. Remaining technology costs within cost of revenue include email distribution costs. Editorial costs included in cost of revenue consist of payroll and stock‑based compensation expense related to the Company's editorial personnel, as these staff members are primarily dedicated to drafting and promoting deals.

Refunds Policy

Refunds

The Company estimates future refunds utilizing a statistical model that incorporates the following data inputs and factors: historical refund experience developed from millions of deals featured on the Company's websites and mobile applications, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in Company practices in response to refund experience or economic trends that might impact customer demand. The portion of customer refunds for which the merchant's share is not recoverable on third party revenue deals is estimated based on the refunds that are expected to be issued after expiration of the related vouchers, the refunds that are expected to be issued due to the merchant bankruptcy or poor customer experience, and whether the payment terms of the related merchant contracts are structured using a redemption payment model or a fixed payment model.

The Company accrues costs associated with refunds within "Accrued expenses" on the consolidated balance sheets. The cost of refunds for third party revenue where the amounts payable to the merchant are recoverable and for all direct revenue is presented on the consolidated statements of operations as a reduction to revenue. The cost of refunds for third party revenue for which the merchant's share is not recoverable is presented as a cost of revenue.

The Company assesses the trends that could affect its estimates on an ongoing basis and makes adjustments to the refund reserve calculations if it appears that changes in circumstances, including changes to the Company's refund policies, may cause future refunds to differ from its original estimates. If actual results are not consistent with the estimates or assumptions stated above, the Company may need to change its future estimates, and the effects could be material to the consolidated financial statements.

Customer Credits Policy [Policy Text Block]

Customer Credits

The Company issues credits to its customers that can be applied against future purchases through its online marketplaces for certain qualifying acts, such as referring new customers, and also to satisfy refund requests. The Company has recorded its customer credit obligations within "Accrued expenses" on the consolidated balance sheets (See Note 7 "Supplemental Consolidated Balance Sheet and Statements of Operations Information"). Customer credit obligations incurred for new customer referrals or other qualifying acts are expensed as incurred and are classified within "Marketing" on the consolidated statements of operations. Customer credits issued to satisfy refund requests are applied as a reduction to the refunds reserve.

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

Stock‑Based Compensation

The Company measures stock‑based compensation cost at fair value, net of estimated forfeitures. Expense is generally recognized on a straight-line basis over the service period during which awards are expected to vest, except for awards with performance conditions, which are recognized using the accelerated method. The Company includes stock-based compensation expense within "Cost of revenue," "Marketing" and "Selling, general and administrative," consistent with the respective employees' cash compensation, on the consolidated statements of operations. See Note 11 "Compensation Arrangements."

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Currency

Balance sheet accounts of the Company's operations outside of the U.S. are translated from foreign currencies into U.S. dollars at the exchange rates as of the consolidated balance sheet dates. Revenue and expenses are translated at average exchange rates during the period. Foreign currency translation adjustments and foreign currency gains and losses on intercompany balances that are of a long-term investment nature are included within "Accumulated other comprehensive income" on the consolidated balance sheets. Foreign currency gains and losses resulting from transactions which are denominated in currencies other than the entity's functional currency, including foreign currency gains and losses on intercompany balances that are not of a long-term investment nature, are included within "Other expense, net" on the consolidated statements of operations. For the years ended December 31, 2014, 2013 and 2012, the Company had $31.5 million of foreign currency transaction losses, $10.3 million of foreign currency transaction losses and $1.4 million of foreign currency transaction gains, respectively.

Description of New Accounting Pronouncements Not yet Adopted [Text Block]

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers. This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The ASU is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. The Company is still assessing the impact of adoption on its consolidated financial statements.

There are no additional accounting standards that have been issued but not yet adopted that the Company believes will have a material impact on its consolidated financial position or results of operations.

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Goodwill and Other Intangible Assets Estimated Future Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 47,122	$ 21,626	$ 19,910
Finite-Lived Intangible Assets, Net, Amortization Expense [Abstract]
2015	40,495
2016	33,707
2017	18,653
2018	17,617
2019	85
Thereafter	0
Total - Finite Lived Intangible Asset, Amortization Expense	$ 110,557
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year 0 months 0 days
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years 0 months 0 days

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Quarterly Results Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Results [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

The following table represents data from the Company's unaudited consolidated statements of operations for the most recent eight quarters. This quarterly information has been prepared on the same basis as the consolidated financial statements and includes all normal recurring adjustments necessary to fairly state the information for the periods presented. The results of operations of any quarter are not necessarily indicative of the results that may be expected for any future period (in thousands, except per share amounts).

	Quarter Ended
	Dec. 31,		Sept. 30,			June 30,			Mar. 31,			Dec. 31,			Sept. 30,			June 30,			Mar. 31,
	2014		2014			2014			2014			2013			2013			2013			2013
Consolidated Statements of Operations Data:
Revenue	$	925,421	$	757,054		$	751,576		$	757,637		$	768,447		$	595,059		$	608,747		$	601,402
Cost of revenue	531,962		376,910			361,714			371,916			390,239			235,437			224,053			222,393
Gross profit	393,459		380,144			389,862			385,721			378,208			359,622			384,694			379,009
Income (loss) from operations	18,394		(5,429		)	(7,854		)	(19,953		)	13,352			13,812			27,412			21,178
Net income (loss) (1)	11,384		(19,018		)	(20,922		)	(35,363		)	(78,861		)	(1,292		)	(5,551		)	(3,242		)
Net income (loss) attributable to Groupon, Inc. (1)	8,788		(21,208		)	(22,875		)	(37,795		)	(81,247		)	(2,580		)	(7,574		)	(3,992		)
Net earnings (loss) per share
Basic	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Diluted	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Weighted average number of shares outstanding
Basic	671,885,967		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417
Diluted	681,543,847		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417

(1) Net loss and net loss attributable to Groupon, Inc. for the quarter ended December 31, 2013 included an impairment of the Company's investment in F-tuan of $85.5 million ($77.8 million, net of tax). See Note 6 "Investments."

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Property, Equipment and Software, Net Property, Equipment and Software (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

The following summarizes the Company's property, equipment and software, net (in thousands):

	December 31,
	2014			2013
Warehouse equipment	$	4,859		$	3,997
Furniture and fixtures	18,610			13,526
Leasehold improvements	39,900			35,830
Office and telephone equipment	4,448			5,062
Purchased software	40,448			22,499
Computer hardware(1)	135,731			84,673
Internally-developed software	133,598			79,113
Total property, equipment and software, gross	377,594			244,700
Less: accumulated depreciation and amortization	(195,119		)	(110,277		)
Property, equipment and software, net	$	182,475		$	134,423

(1) Includes computer hardware acquired under capital leases of $48.0 million and $11.8 million as of December 31, 2014 and 2013, respectively.    

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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]

Schedule of Goodwill [Table Text Block]

The following table summarizes the Company's goodwill activity by segment for the years ended December 31, 2014 and 2013 (in thousands):

	North America			International			EMEA			Rest of World			Consolidated
Balance as of December 31, 2012	$	79,276		$	127,408		$	—		$	—		$	206,684
Reallocation to new segments	—			(124,770		)	105,347			19,423			—
Goodwill related to acquisitions	4,893			—			4,611			—			9,504
Other adjustments(1)	1,288			(2,638		)	5,711			278			4,639
Balance as of December 31, 2013	$	85,457		$	—		$	115,669		$	19,701		$	220,827
Goodwill related to acquisitions	31,353			—			—			218,692			250,045
Other adjustments(1)	(92		)	—			(13,490		)	(9,480		)	(23,062		)
Balance as of December 31, 2014	$	116,718		$	—		$	102,179		$	228,913		$	447,810

(1) Represents the impact of changes in foreign exchange rates on goodwill.

Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]

The following tables summarize the Company's intangible assets (in thousands):

	December 31, 2014
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	103,858	$	48,754	$	55,104
Merchant relationships	39,448		18,677		20,771
Trade names	29,190		10,666		18,524
Developed technology	25,903		21,989		3,914
Brand relationships	7,664		1,486		6,178
Other intangible assets	17,045		10,979		6,066
Total	$	223,108	$	112,551	$	110,557

	December 31, 2013
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	45,541	$	30,866	$	14,675
Merchant relationships	9,186		7,991		1,195
Trade names	6,739		6,739		—
Developed technology	23,038		19,547		3,491
Other intangible assets	16,776		7,694		9,082
Total	$	101,280	$	72,837	$	28,443

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

As of December 31, 2014, the Company's estimated future amortization expense related to intangible assets is as follows (in thousands):

Years Ended December 31,
2015	$	40,495
2016	33,707
2017	18,653
2018	17,617
2019	85
Thereafter	—
Total	$	110,557

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes Paid	$ 24,006	$ 60,767	$ 126,987
Operating activities
Net loss	(63,919)	(88,946)	(51,031)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization of property, equipment and software	97,799	67,823	35,891
Amortization of acquired intangible assets	47,122	21,626	19,910
Stock-based compensation	122,019	121,462	104,117
Deferred income taxes	(11,106)	(18,055)	(7,651)
Excess tax benefits on stock-based compensation	(15,980)	(20,454)	(27,023)
Loss on equity method investments	459	44	9,925
(Gain) loss, net from changes in fair value of contingent consideration	(2,444)	(3,171)	897
Gain of E-Commerce transaction			(56,032)
Impairment of investments	2,036	85,925	50,553
Change in assets and liabilities, net of acquisitions:
Restricted cash	6,010	2,183	(4,372)
Accounts receivable	(13,660)	10,989	10,534
Prepaid expenses and other current assets	78	(62,906)	(70,859)
Accounts payable	(11,911)	(31,288)	18,711
Accrued merchant and supplier payables	115,106	88,468	149,918
Accrued expenses and other current liabilities	(16,182)	4,053	47,742
Other, net	33,397	40,679	35,604
Net cash provided by operating activities	288,824	218,432	266,834
Investing activities
Purchases of property and equipment and capitalized software	(88,292)	(63,505)	(95,836)
Acquisitions of businesses, net of acquired cash	(131,463)	(7,349)	(46,890)
Purchases of investments	(6,904)	(21,982)	(37,523)
Settlements of liabilities related to purchase of additional interests in consolidated subsidiaries	(2,297)	(1,959)	0
Purchases of additional interests in consolidated subsidiaries			(14,130)
Purchases of intangible assets	(500)	(1,520)	(600)
Net cash used in investing activities	(229,456)	(96,315)	(194,979)
Financing activities
Payments for purchases of treasury stock	(153,253)	(44,840)	0
Excess tax benefits on stock-based compensation	15,980	20,454	27,023
Taxes paid related to net share settlements of stock-based compensation awards	(43,618)	(47,575)	(12,996)
Debt issuance costs	(1,029)	0	0
Common stock issuance costs in connection with acquisition of business	(158)	0	0
Payments of contingent consideration from acquisitions	0	(4,289)	(4,700)
Settlements of purchase price obligations related to acquisitions	(3,136)	(5,000)	(2,233)
Proceeds from stock option exercises and employee stock purchase plan	6,514	7,303	9,313
Partnership distribution payments to noncontrolling interest holders	(8,034)	(6,130)	(4,312)
Payments of capital lease obligations	(7,422)	(1,620)	0
Net cash (used in) provided by financing activities	(194,156)	(81,697)	12,095
Effect of exchange rate changes on cash and cash equivalents	(33,771)	(9,237)	2,404
Net (decrease) increase in cash and cash equivalents	(168,559)	31,183	86,354
Cash and cash equivalents, beginning of period	1,240,472	1,209,289	1,122,935
Cash and cash equivalents, end of period	1,071,913	1,240,472	1,209,289
Non-cash investing and financing activities
Issuance of common stock in connection with acquisition of business	173,972	3,051	0
Contingent consideration liabilities incurred in connection with acquisitions	4,388	3,567	3,400
Equipment acquired under capital lease obligations	36,574	10,001	1,122
Shares issued to settle liability-classified awards and contingent consideration	1,041	4,649	2,267
Liability for purchases of treasury stock	374	1,747	0
Liability for purchase of additional interests in consolidated subsidiaries	1,598	0	1,959
Accounts payable and accrued expenses related to purchases of property and equipment and capitalized software	2,109	1,564	1,891
Contribution of investment in E-Commerce transaction			47,042
Stock issued in exchange for additional interests in consolidated subsidiaries			527
Shares issued to settle contingent consideration			$ 236

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Investments (Tables)

12 Months Ended

Dec. 31, 2014

Investments, All Other Investments [Abstract]

Schedule of Cost and Equity Method Investments [Table Text Block]

The following table summarizes the Company's investments (dollars in thousands):

	December 31, 2014		Percent Ownership of Voting Stock					December 31, 2013		Percent Ownership of Voting Stock
Cost and equity method investments:
Cost method investments	$	15,630	6	%	to	19	%	$	15,788	6	%	to	19	%
Equity method investments	1,231		21	%	to	50	%	1,690		21	%	to	50	%
Total cost and equity method investments	16,861							17,478
Available-for-sale securities:
Convertible debt securities	2,527							3,174
Redeemable preferred shares	4,910		17	%	to	19	%	—		19	%
Total available-for-sale securities	7,437							3,174
Total investments	$	24,298						$	20,652

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

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 December 31, 2014 and 2013, respectively (in thousands):

	December 31, 2014								December 31, 2013
	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	$	2,030	$	497	$	—	$	2,527	$	3,370	$	—	$	(196	)	$	3,174
Redeemable preferred shares	4,599		311		—		4,910		—		—		—			—
Total available-for-sale securities	$	6,629	$	808	$	—	$	7,437	$	3,370	$	—	$	(196	)	$	3,174

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Fair Value Measurements Financial Assets and Liabilities, Not Measured at Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments	$ 15,630	$ 15,788	$ 128,100
Cost Method Investments, Fair Value Disclosure	$ 16,134	$ 15,573

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Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

The components of pretax (loss) income for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
United States	$	(20,057	)	$	62,021		$	88,638
International	(28,138		)	(80,930		)	6,304
(Loss) income before provision for income taxes	$	(48,195	)	$	(18,909	)	$	94,942

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 consisted of the following components (in thousands):

	Year Ended December 31,
	2014			2013			2012
Current taxes:
U.S. federal	$	(3,518	)	$	22,321		$	41,551
State	69			1,693			4,778
International	30,279			64,078			107,295
Total current taxes	26,830			88,092			153,624
Deferred taxes:
U.S. federal	(5,132		)	4,675			(2,977		)
State	(742		)	(5,687		)	(236		)
International	(5,232		)	(17,043		)	(4,438		)
Total deferred taxes	(11,106		)	(18,055		)	(7,651		)
Provision for income taxes	$	15,724		$	70,037		$	145,973

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The items accounting for differences between the income tax provision or benefit computed at the federal statutory rate and the provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 were as follows:

	Year Ended December 31,
	2014			2013			2012
U.S. federal income tax (benefit) provision at statutory rate	$	(16,868	)	$	(6,618	)	$	33,230
Foreign income and losses taxed at different rates	4,815			14,299			10,565
Unrecognized tax benefits on E-Commerce transaction	—			—			17,404
State income taxes, net of federal benefits and state tax credits	(10,051		)	(5,361		)	3,965
Change in valuation allowances	23,515			24,404			29,249
Effect of foreign and state rate changes on deferred items	178			837			(487		)
Tax effects of intercompany transactions(1)	13,098			35,158			31,011
Non-deductible stock-based compensation expense	6,503			9,000			14,641
Federal research and development credits	(4,693		)	(4,650		)	—
Non-deductible or non-taxable items	(773		)	2,968			6,395
Provision for income taxes	$	15,724		$	70,037		$	145,973

(1) Includes a tax benefit of $24.4 million for the year ended December 31, 2014 resulting from decreases in the Company's liabilities for uncertain tax positions.

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The deferred income tax assets and liabilities consisted of the following components as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014			2013
Deferred tax assets:
Reserves and allowances	$	32,379		$	65,356
Stock-based compensation	6,911			13,462
Net operating loss and tax credit carryforwards	221,674			152,271
Intangible assets, net	11,910			30,039
Investments	1,441			3,730
Unrealized foreign exchange losses	5,011			—
Other	2,610			1,692
Total deferred tax assets	281,936			266,550
Less valuation allowances	(205,486		)	(173,577		)
Deferred tax assets, net of valuation allowance	76,450			92,973
Deferred tax liabilities:
Unrealized foreign exchange gains	—			(3,034		)
Prepaid expenses and other assets	(1,455		)	(1,078		)
Property, equipment and software, net	(25,159		)	(19,239		)
Deferred revenue	(25,013		)	(64,154		)
Total deferred tax liabilities	(51,627		)	(87,505		)
Net deferred tax asset	$	24,823		$	5,468

Summary of Income Tax Contingencies [Table Text Block]

The following table summarizes activity related to the Company's gross unrecognized tax benefits, excluding interest and penalties, from January 1 to December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Beginning Balance	$	110,305		$	85,481		$	55,127
Increases related to prior year tax positions	5,489			10,494			602
Decreases related to prior year tax positions	(27,875		)	(2,103		)	(790		)
Increases related to current year tax positions	17,348			14,565			29,465
Foreign currency translation	(6,946		)	1,868			1,077
Ending Balance	$	98,321		$	110,305		$	85,481

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Property, Equipment and Software, Net (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	$ 377,594,000		$ 244,700,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(195,119,000)		(110,277,000)
Property, equipment and software, net	182,475,000		134,423,000
Capital Leased Assets, Gross	48,000,000		11,800,000
Depreciation and amortization of property, equipment and software	97,799,000		67,823,000		35,891,000
Capital Leases, Income Statement, Amortization Expense	7,200,000		2,100,000
Capitalized Computer Software, Net	61,800,000		47,900,000
Capitalized Computer Software, Amortization	42,100,000		25,200,000		3,400,000
Warehouse equipment [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	4,859,000		3,997,000
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	18,610,000		13,526,000
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	39,900,000		35,830,000
Office and telephone equipment [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	4,448,000		5,062,000
Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	40,448,000		22,499,000
Computer hardware [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	135,731,000	[1]	84,673,000	[1]
Internally-developed software [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software, gross	133,598,000		79,113,000
Selling, General and Administrative Expenses [Member]
Property, Plant and Equipment [Line Items]
Capitalized Computer Software, Amortization	30,400,000		17,300,000
Cost of Sales [Member]
Property, Plant and Equipment [Line Items]
Capitalized Computer Software, Amortization	$ 11,700,000		$ 7,900,000

[1] (1)Includes computer hardware acquired under capital leases of $48.0 million and $11.8 million as of December 31, 2014 and 2013, respectively.

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Compensation Arrangements Compensation Arrangement Performance Share Units (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Share Units, Shares Granted	2,000,000
Compensation Arrangement Performance Share Units [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	1,983,232
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(967,388)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,015,844
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	$ 0.00
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
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 8.07
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 8.07
Performance condition not met [Member]
Compensation Arrangement Performance Share Units [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(800,000)

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 1,071,913	$ 1,240,472
Accounts receivable, net	105,154	83,673
Deferred income taxes	16,271	27,938
Prepaid expense and other current assets	207,991	210,415
Total current assets	1,401,329	1,562,498
Property, equipment and software, net	182,475	134,423
Goodwill	447,810	220,827
Intangible assets, net	110,557	28,443
Investments	24,298	20,652
Deferred income taxes, non-current	41,835	35,941
Other non-current assets	19,293	39,226
Total Assets	2,227,597	2,042,010
Current liabilities:
Accounts payable	21,855	27,573
Accrued merchant and supplier payables	910,567	752,943
Accrued expenses	230,352	226,986
Deferred income taxes	32,510	47,558
Other current liabilities	130,312	132,718
Total current liabilities	1,325,596	1,187,778
Deferred income taxes, non-current	773	10,853
Other non-current liabilities	136,284	131,697
Total Liabilities	1,462,653	1,330,328
Commitments and contingencies
Stockholders' Equity
Additional paid-in capital	1,847,420	1,584,211
Treasury stock, at cost	(198,467)	(46,587)
Accumulated deficit	(921,960)	(848,870)
Accumulated other comprehensive income	35,763	24,830
Total Groupon, Inc. Stockholders' Equity	762,826	713,651
Noncontrolling interests	2,118	(1,969)
Total Equity	764,944	711,682
Total Liabilities and Equity	2,227,597	2,042,010
Common Class A [Member]
Stockholders' Equity
Common Stock, Value, Issued	70	67
Common Class B [Member]
Stockholders' Equity
Common Stock, Value, Issued	0	0
Common Stock [Member]
Stockholders' Equity
Common Stock, Value, Issued	$ 0	$ 0

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Summary of Significant Accounting Policies Allowance for Doubtful Accounts (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Abstract]
Allowance for Doubtful Accounts Receivable	$ 2.2	$ 0.7

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Schedule II - Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Beginning Balance	$ 173,577	$ 159,249	$ 128,215
Valuation Allowances and Reserves, Charged to Cost and Expense	23,515	24,404	27,751
Valuation Allowances and Reserves, Period Increase (Decrease)	8,394	(10,076)	3,283
Valuation Allowances and Reserves, Ending Balance	$ 205,486	$ 173,577	$ 159,249

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Consolidated Statements of Comprehensive Income (Loss) Condensed Consolidated Statements of Comprehensive Income (Loss) Parenthetical (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income Parenthetical [Abstract]
Tax effects for change in unrealized gain (loss)	$ 383	$ (108)	$ 34
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ 285

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Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Boomerang [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 1.0
InnerWorkings [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party		1.1
Echo [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party		$ 1.9

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Investments Other-Than-Temporary-Impairment (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2013	Jun. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other-Than-Temporary-Impairment [Abstract]
Impairment of investments	$ 77,800,000		$ 2,036,000	$ 85,925,000	$ 50,553,000
Other-than-temporary impairment of available-for-sale security			1,340,000	0	0
Fair Value Inputs, Discount Rate		25.00%			30.00%
Other than Temporary Impairment Losses, Investments	85,500,000		2,036,000	85,925,000	50,553,000
Equity Method Investment, Other than Temporary Impairment					1,200,000
F-Tuan [Member]
Other-Than-Temporary-Impairment [Abstract]
Other than Temporary Impairment Losses, Investments				$ 85,500,000	$ 50,600,000

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Commitments and Contingencies Purchase Obligations (Tables)

12 Months Ended

Dec. 31, 2014

Long-term Purchase Commitment [Line Items]

Long-term Purchase Commitment [Table Text Block]

The Company has entered into non-cancelable arrangements with third-parties, primarily related to information technology products and services. As of December 31, 2014, future payments under these contractual obligations were as follows (in thousands):

2015	$	33,636
2016	21,922
2017	5,730
2018	8
2019	4
Thereafter	—
Total purchase obligations	$	61,300

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Commitments and Contingencies Legal Matters (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2014
COMMITMENTS AND CONTINGENCIES [Abstract]
Restatement of Prior Year Revenue	$ 14,300,000
Restatement of Prior Year Operating Income	30,000,000
Restatement of Prior Year Income, Net of Tax	22,600,000
Impact of Restatement on Earnings Per Share, Basic	$ 0.04
Litigation Settlement, Expense		8,500,000
Loss Contingency, Range of Possible Loss, Maximum			$ 46,500,000

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Fair Value Measurements

12 Months Ended

Dec. 31, 2014

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value Measurements [Text Block]

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 - 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.

The Company has classified its investments in available-for-sale securities 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, 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 or shares to the former owners of acquired businesses if specified financial results are met over future reporting periods (i.e. earn-outs). The Company also has a contingent obligation to transfer up to $1.1 million of cash or shares to the former owners of an acquired business if the Company's share price is less than $6.48 per share on June 8, 2015. 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 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. The Company uses a Black-Scholes-Merton option pricing model to value the contingent consideration obligation that is payable upon declines in the Company's share price. Increases in volatility and decreases in the Company's share price contribute to the increases in the fair value of that contingent consideration liability. Conversely, decreases in volatility and increases in the Company's share price contribute to decreases in the fair value of the contingent consideration liability. Changes in assumptions could have an impact on the payout of contingent consideration arrangements with a maximum payout of $8.4 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	December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
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 Measurement at Reporting Date Using
Description	December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	585,514	$	585,514	$	—	$	—
Available-for-sale securities:
Convertible debt securities	3,174		—		—		3,174
Redeemable preferred shares	—		—		—		—
Liabilities:
Contingent consideration	606		—		—		606

The following table provides a roll-forward of the fair value of recurring Level 3 fair value measurements for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Assets
Available-for-sale securities
Convertible debt securities:
Beginning Balance	$	3,174		$	3,087		$	—
Purchases of convertible debt securities	—			370			3,000
Total gains (losses) included in other comprehensive income	693			(283		)	87
Total gains (losses) included in other expense, net	(1,340		)	—			—
Ending Balance	$	2,527		$	3,174		$	3,087
Unrealized (losses) gains still held(1)	$	(647	)	$	(283	)	$	87
Redeemable preferred shares:
Beginning Balance	$	—		$	42,539		$	—
Acquisitions of preferred shares in exchange transactions (See note 6)	—			34,982			56,940
Purchase of redeemable preferred shares	4,599			8,000			—
Total gains included in other comprehensive income	311			—			—
Other-than-temporary impairments included in earnings	—			(85,521		)	(14,401		)
Ending Balance	$	4,910		$	—		$	42,539
Unrealized (losses) gains still held(1)	$	311		$	(85,521	)	$	(14,401	)
Liabilities
Contingent Consideration:
Beginning Balance	$	606		$	7,601		$	11,230
Issuance of contingent consideration in connection with acquisitions	4,388			3,567			3,400
Settlements of contingent consideration liabilities	(424		)	(4,377		)	(4,936		)
Reclass to non-fair value liabilities when no longer contingent	(143		)	(3,014		)	(4,978		)
Total (gains) losses included in earnings(2)	(2,444		)	(3,171		)	897
Reclass of contingent consideration from Level 2 to Level 3	—			—			1,988
Ending Balance	$	1,983		$	606		$	7,601
Unrealized (gains) losses still held(1)	$	(2,405	)	$	360		$	211

(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 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 years endedDecember 31, 2014 and 2013. The following table summarizes the Company's assets that were measured at fair value on a nonrecurring basis as of December 31, 2012 (in thousands):

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset impairments:
Cost method investment in Life Media Limited (F-tuan) common shares	$	34,982	$	—	$	—	$	34,982
Equity method investment	$	495	$	—	$	—	$	495

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):

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cost method investments	$	15,630	$	16,134	$	15,788	$	15,573

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 December 31, 2014 and 2013 due to their short term nature.

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Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The table below summarizes the stock option activity for the year ended December 31, 2014:

	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands) (1)
Outstanding at December 31, 2013	3,355,054		$	1.11	6.04	$	35,742
Exercised	(1,029,471	)	$	1.09
Forfeited	(62,589	)	$	2.41
Outstanding at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226
Exercisable at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226

(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 December 31, 2014 and 2013, respectively.

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Segment Information

12 Months Ended

Dec. 31, 2014

SEGMENT INFORMATION [Abstract]

Segment Reporting Disclosure [Text Block]

SEGMENT INFORMATION

The company organizes its operations intothreesegments: North America, EMEA, which is comprised of Europe, Middle East and Africa, and the remainder of the Company's international operations ("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 years endedDecember 31, 2014, 2013 and 2012 were as follows (in thousands):    

	Year Ended December 31,
	2014			2013			2012
North America
Revenue(1)	$	1,824,461		$	1,521,358		$	1,165,700
Segment cost of revenue and operating expenses(2)	1,755,113			1,380,746			1,025,974
Segment operating income(2)	69,348			140,612			139,726
EMEA
Revenue(1)	961,130			742,915			805,476
Segment cost of revenue and operating expenses(2)	857,062			631,409			699,470
Segment operating income(2)	104,068			111,506			106,006
Rest of World
Revenue	406,097			309,382			363,296
Segment cost of revenue and operating expenses(2)	471,067			364,295			405,313
Segment operating loss(2)	(64,970		)	(54,913		)	(42,017		)
Consolidated
Revenue	3,191,688			2,573,655			2,334,472
Segment cost of revenue and operating expenses(2)	3,083,242			2,376,450			2,130,757
Segment operating income(2)	108,446			197,205			203,715
Stock-based compensation	122,019			121,462			104,117
Acquisition-related expense (benefit), net	1,269			(11		)	897
(Loss) income from operations	(14,842		)	75,754			98,701
Other expense, net	(33,353		)	(94,663		)	(3,759		)
(Loss) income before provision for income taxes	(48,195		)	(18,909		)	94,942
Provision for income taxes	15,724			70,037			145,973
Net loss	$	(63,919	)	$	(88,946	)	$	(51,031	)

(1) North America includes revenue from the United States of $1,784.6 million, $1,471.9 million and $1,108.4 million for the years endedDecember 31, 2014, 2013 and 2012 respectively. Beginning in September 2013, direct revenue transactions in the EMEA Goods category have been transacted through a Switzerland-based subsidiary. As a result, EMEA includes revenue from Switzerland of $468.7 million for the year endedDecember 31, 2014. There were no other individual countries that represented more than 10% of consolidated total revenue for the years ended December 31, 2014, 2013 or 2012.

(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 following table summarizes the Company's stock-based compensation expense and acquisition-related expense (benefit), net by reportable segment for the years endedDecember 31, 2014, 2013 and 2012. (in thousands):

	Year Ended December 31,
	2014				2013					2012
	Stock-based compensation		Acquisition-related		Stock-based compensation		Acquisition-related			Stock-based compensation		Acquisition-related
North America	$	99,939	$	1,125	$	90,877	$	1,285		$	65,127	$	(2,780	)
EMEA	9,927		144		16,263		(1,296		)	15,123		3,677
Rest of World	12,153		—		14,322		—			23,867		—
Consolidated	$	122,019	$	1,269	$	121,462	$	(11	)	$	104,117	$	897

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 December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	1,150,417	$	1,267,158
EMEA	552,486		616,126
Rest of World (1)	524,694		158,726
Consolidated total assets	$	2,227,597	$	2,042,010

(1) North America contains assets from the United States of $1,120.4 million and $1,231.3 million as of December 31, 2014 and 2013, respectively. Rest of World contains assets from the Republic of Korea, including those assets acquired as a part of our acquisition of Ticket Monster described in Note 3 "Business Combinations," of $388.0 million as of December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total assets as of December 31, 2014 and 2013, respectively.

The following table summarizes the Company's tangible property and equipment, net of accumulated depreciation and amortization, by reportable segment as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
North America (1)	$	63,915	$	43,126
EMEA (2)	28,721		23,413
Rest of World	11,167		9,100
Consolidated total	$	103,803	$	75,639

(1) Substantially all tangible property and equipment within North America is located in the United States.

(2) Tangible property and equipment, net located within Ireland represented approximately 12% of the Company's consolidated tangible property and equipment, net as of December 31, 2014. Tangible property and equipment, net located within Switzerland represented approximately 11% of the Company's consolidated tangible property and equipment, net as of December 31, 2013. There were no other individual countries located outside of the United States that represented more than 10% of consolidated tangible property and equipment, net as of December 31, 2014 and 2013.

The following table summarizes depreciation and amortization of property, equipment and software and intangible assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	83,106	$	57,700	$	30,580
EMEA	24,849		24,157		17,546
Rest of World	36,966		7,592		7,675
Consolidated total	$	144,921	$	89,449	$	55,801

The following table summarizes the Company's expenditures for additions to tangible long-lived assets by reportable segment for the years ended December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014		2013		2012
North America	$	6,775	$	14,728	$	38,543
EMEA	12,945		6,719		26,909
Rest of World	11,616		7,469		3,875
Consolidated total	$	31,336	$	28,916	$	69,327

The Company's equity method investments as of December 31, 2014 and 2013 were $1.2 million and $1.7 million, respectively, which are included in North America and are held by an entity in the United States.

Category Information

The Company offers goods and services through 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 were previously considered to be distinct from our primary categories and were aggregated with revenue and gross profit from Travel, our smallest category. In recent periods, these other revenue sources have been increasingly viewed by management as a component of the Local category, as they are primarily generated through the Company's relationships with local and national merchants. Accordingly, the Company updated its presentation of category information, effective beginning with the quarter ended March 31, 2014, to include other revenue and gross profit within the Local category in the tables below, and the prior period category information has been retrospectively adjusted to conform to the current period presentation.

The following table summarizes the Company's third party and other and direct revenue by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America						EMEA						Rest of World						Consolidated
	Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,						Year Ended   December 31,
	2014		2013		2012		2014		2013		2012		2014		2013		2012		2014		2013		2012
Local (1):
Third party and other	$	674,605	$	671,846	$	665,587	$	391,179	$	430,020	$	501,782	$	167,552	$	182,010	$	221,859	$	1,233,336	$	1,283,876	$	1,389,228
Direct	—		1,772		12,037		—		—		—		—		—		—		—		1,772		12,037
Total	674,605		673,618		677,624		391,179		430,020		501,782		167,552		182,010		221,859		1,233,336		1,285,648		1,401,265
Goods:
Third party	5,966		17,409		60,269		63,650		133,117		186,495		146,984		69,344		87,746		216,600		219,870		334,510
Direct	1,074,913		774,023		391,239		442,344		115,881		36,393		46,892		27,325		10,821		1,564,149		917,229		438,453
Total	1,080,879		791,432		451,508		505,994		248,998		222,888		193,876		96,669		98,567		1,780,749		1,137,099		772,963
Travel:
Third party	68,977		56,308		36,568		63,957		63,897		76,553		44,669		30,703		42,870		177,603		150,908		155,991
Direct	—		—		—		—		—		4,253		—		—		—		—		—		4,253
Total	68,977		56,308		36,568		63,957		63,897		80,806		44,669		30,703		42,870		177,603		150,908		160,244
Total revenue	$	1,824,461	$	1,521,358	$	1,165,700	$	961,130	$	742,915	$	805,476	$	406,097	$	309,382	$	363,296	$	3,191,688	$	2,573,655	$	2,334,472

(1) Includes revenue from deals with local and national merchants and through local events.

The following table summarizes the Company's gross profit by category for its three reportable segments for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	North America							EMEA							Rest of World									Consolidated
	Year Ended   December 31,							Year Ended   December 31,							Year Ended   December 31,									Year Ended   December 31,
	2014		2013			2012		2014		2013		2012			2014			2013			2012			2014		2013			2012
Local (1):
Third party and other	$	581,067	$	582,723		$	541,716	$	364,545	$	383,725	$	453,970		$	138,527		$	153,406		$	173,735		$	1,084,139	$	1,119,854		$	1,169,421
Direct	—		(782		)	1,909		—		—		—			—			—			—			—		(782		)	1,909
Total	581,067		581,941			543,625		364,545		383,725		453,970			138,527			153,406			173,735			1,084,139		1,119,072			1,171,330
Goods:
Third party	5,112		15,319			48,288		55,434		116,357		168,429			91,486			39,699			66,271			152,032		171,375			282,988
Direct	88,810		66,753			36,188		77,706		13,194		(2,521		)	(2,984		)	(224		)	(2,563		)	163,532		79,723			31,104
Total	93,922		82,072			84,476		133,140		129,551		165,908			88,502			39,475			63,708			315,564		251,098			314,092
Travel:
Third party	56,994		48,824			27,208		59,229		56,850		68,777			33,260			25,689			33,596			149,483		131,363			129,581
Direct	—		—			—		—		—		529			—			—			—			—		—			529
Total	56,994		48,824			27,208		59,229		56,850		69,306			33,260			25,689			33,596			149,483		131,363			130,110
Total gross profit	$	731,983	$	712,837		$	655,309	$	556,914	$	570,126	$	689,184		$	260,289		$	218,570		$	271,039		$	1,549,186	$	1,501,533		$	1,615,532

(1) Includes gross profit from deals with local and national merchants and through local events.

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Stockholders' Equity Repurchase Program (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Employee Stock Purchase Plan [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 101,533
Common Class A [Member]
Employee Stock Purchase Plan [Line Items]
Stock Repurchase Program, Authorized Amount	300,000
Stock Repurchased During Period, Shares	22,806,304	4,432,800
Stock Repurchased During Period, Value	$ 151,880	$ 46,600

XML

Consolidated Statements of Stockholders' Equity (USD $)	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, Equity at Dec. 31, 2011		$ 64,000	$ 1,388,253,000		$ (698,704,000)	$ 12,928,000	$ 702,541,000	$ (3,074,000)	$ 699,467,000
Beginning Balance, Shares, Outstanding at Dec. 31, 2011		644,145,201
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(51,031,000)				(54,773,000)		(54,773,000)	3,748,000	(51,025,000)
Foreign currency translation adjustments	(425,000)					(535,000)	(535,000)	960,000	425,000
Pension liability adjustment	0
Unrealized gain (loss) on available-for-sale debt security, net of tax						53,000	53,000		53,000
Adjustment of redeemable noncontrolling interests to redemption value	(12,604,000)	0	(12,604,000)				(12,604,000)	0	(12,604,000)
Common stock issued in connection with acquisition of business, shares		152,446
Purchases of additional interests in consolidated subsidiaries, shares		51,000
Shares issued to settle liability-classified awards, shares	660,539	660,539
Shares issued to settle liability-classified awards and contingent consideration	2,267,000		2,503,000				2,503,000		2,503,000
Purchase of noncontrolling interest, excess of purchase price over value of noncontrolling interest			(2,584,000)				(2,584,000)
Purchase of interests in consolidated subsidiaries								739,000
Purchase of noncontrolling interests in consolidated subsidiaries									(1,845,000)
Exercise of stock options, shares		9,025,164
Exercise of stock options, value		1,000	9,312,000				9,313,000		9,313,000
Vesting of restricted stock units, shares		4,452,979
Tax withholding related to net share settlements of stock-based compensation awards, shares		(1,563,647)
Tax withholding related to net share settlements of stock-based compensation awards, value			(14,918,000)				(14,918,000)		(14,918,000)
Stock-based compensation on equity-classified awards			93,781,000				93,781,000		93,781,000
Excess tax benefits on stock-based compensation awards			21,263,000				21,263,000		21,263,000
Partnership distributions to noncontrolling interest holders								(4,312,000)	(4,312,000)
Ending Balance, Equity at Dec. 31, 2012		65,000	1,485,006,000		(753,477,000)	12,446,000	744,040,000	(1,939,000)	742,101,000
Ending Balance, Shares, Outstanding at Dec. 31, 2012		656,923,682
Beginning Balance, Treasury Stock, Value at Dec. 31, 2012				0
Beginning Balance, Treasury Stock, Shares at Dec. 31, 2012				0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(88,946,000)				(95,393,000)		(95,393,000)	6,447,000	(88,946,000)
Foreign currency translation adjustments	(12,933,000)					12,559,000	12,559,000	374,000	12,933,000
Pension liability adjustment	0
Unrealized gain (loss) on available-for-sale debt security, net of tax						(175,000)	(175,000)		(175,000)
Adjustment of redeemable noncontrolling interests to redemption value	0
Common stock issued in connection with acquisition of business, shares		276,217
Common stock issued in connection with acquisition of business, net of issuance costs		0	3,051,000				3,051,000		3,051,000
Shares issued to settle liability-classified awards, shares		758,474
Shares issued to settle liability-classified awards and contingent consideration	4,649,000		4,649,000				4,649,000		4,649,000
Exercise of stock options, shares		4,003,544
Exercise of stock options, value			4,062,000				4,062,000		4,062,000
Vesting of restricted stock units, shares		15,565,805
Vesting of restricted stock units, value		2,000	(2,000)
Shares issued under employee stock purchase plan, shares		774,288
Shares issued under employee stock purchase plan, value			3,241,000				3,241,000		3,241,000
Tax withholding related to net share settlements of stock-based compensation awards, shares		(5,752,058)
Tax withholding related to net share settlements of stock-based compensation awards, value			(47,684,000)				(47,684,000)		(47,684,000)
Stock-based compensation on equity-classified awards			122,222,000				122,222,000		122,222,000
Excess tax benefits on stock-based compensation awards			9,666,000				9,666,000		9,666,000
Purchases of treasury stock, shares				(4,432,800)
Purchases of treasury stock, value				(46,587,000)			(46,587,000)		(46,587,000)
Partnership distributions to noncontrolling interest holders								(6,851,000)	(6,851,000)
Ending Balance, Equity at Dec. 31, 2013	711,682,000	67,000	1,584,211,000		(848,870,000)	24,830,000	713,651,000	(1,969,000)	711,682,000
Ending Balance, Treasury Stock, Value at Dec. 31, 2013	(46,587,000)			(46,587,000)
Ending Balance, Treasury Stock, Shares at Dec. 31, 2013				(4,432,800)
Ending Balance, Shares, Outstanding at Dec. 31, 2013		672,549,952
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(63,919,000)				(73,090,000)		(73,090,000)	9,171,000	(63,919,000)
Foreign currency translation adjustments	(11,625,000)					11,812,000	11,812,000	(187,000)	11,625,000
Pension liability adjustment	(1,500,000)					(1,500,000)	(1,500,000)	0	(1,500,000)
Unrealized gain (loss) on available-for-sale debt security, net of tax						621,000	621,000		621,000
Adjustment of redeemable noncontrolling interests to redemption value	0
Common stock issued in connection with acquisition of business, shares		15,255,180
Common stock issued in connection with acquisition of business, net of issuance costs		2,000	173,813,000				173,815,000		173,815,000
Shares issued to settle liability-classified awards, shares		102,180
Shares issued to settle liability-classified awards and contingent consideration	1,041,000		1,041,000				1,041,000		1,041,000
Purchase of noncontrolling interest, excess of purchase price over value of noncontrolling interest			(6,310,000)				(6,310,000)
Purchase of interests in consolidated subsidiaries								2,415,000
Purchase of noncontrolling interests in consolidated subsidiaries									(3,895,000)
Exercise of stock options, shares		1,029,471
Exercise of stock options, value			1,118,000				1,118,000		1,118,000
Vesting of restricted stock units, shares		17,323,096
Vesting of restricted stock units, value		1,000	(1,000)
Shares issued under employee stock purchase plan, shares		857,171
Shares issued under employee stock purchase plan, value			5,396,000				5,396,000		5,396,000
Tax withholding related to net share settlements of stock-based compensation awards, shares		(5,708,990)
Tax withholding related to net share settlements of stock-based compensation awards, value			(44,509,000)				(44,509,000)		(44,509,000)
Stock-based compensation on equity-classified awards			133,230,000				133,230,000		133,230,000
Excess tax benefits on stock-based compensation awards			(569,000)				(569,000)		(569,000)
Purchases of treasury stock, shares				(22,806,304)
Purchases of treasury stock, value				(151,880,000)			(151,880,000)		(151,880,000)
Partnership distributions to noncontrolling interest holders								(7,312,000)	(7,312,000)
Ending Balance, Equity at Dec. 31, 2014	764,944,000	70,000	1,847,420,000		(921,960,000)	35,763,000	762,826,000	2,118,000	764,944,000
Ending Balance, Treasury Stock, Value at Dec. 31, 2014	$ (198,467,000)			$ (198,467,000)
Ending Balance, Treasury Stock, Shares at Dec. 31, 2014				(27,239,104)
Ending Balance, Shares, Outstanding at Dec. 31, 2014		701,408,060

XML

Consolidated Balance Sheets Parenthetical (USD $)	Dec. 31, 2014	Dec. 31, 2013
Common Stock [Member]
Condensed Consolidated Balance Sheet Parenthetical [Line Items]
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]
Condensed Consolidated Balance Sheet Parenthetical [Line Items]
Common Stock, Par Value	0.0001	0.0001
Common Stock, Shares Authorized	2,000,000,000	2,000,000,000
Common Stock, Shares, Issued	699,008,084	670,149,976
Common Stock, Shares, Outstanding	671,768,980	665,717,176
Common Class B [Member]
Condensed Consolidated Balance Sheet Parenthetical [Line Items]
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
Treasury Stock [Member]
Condensed Consolidated Balance Sheet Parenthetical [Line Items]
Treasury Stock, Shares	27,239,104	4,432,800

XML

Revolving Credit Agreement (Notes)

12 Months Ended

Dec. 31, 2014

Line of Credit Facility [Line Items]

Debt Disclosure [Text Block]

REVOLVING CREDIT AGREEMENT

In August 2014, the Company entered into a three-year senior secured revolving credit agreement (the "Credit Agreement") that provides for aggregate principal borrowings of up to $250.0 million. Borrowings under the Credit Agreement bear interest, at the Company's option, at a rate per annum equal to the Alternate Base Rate or Adjusted LIBO Rate (each as defined in the Credit Agreement) plus an additional margin ranging between 0.25% and 2.00%. The Company is required to pay quarterly commitment fees ranging from 0.20% to 0.35% per annum of the average daily amount available under the Credit Agreement. The Credit Agreement also provides for the issuance of up to $45.0 million in letters of credit, provided that the sum of outstanding borrowings and letters of credit do not exceed the maximum funding commitment of $250.0 million.

The Credit Agreement is secured by substantially all of the Company's and its subsidiaries' tangible and intangible assets, including a pledge of 100% of the outstanding capital stock of substantially all of its direct and indirect domestic subsidiaries and 65% of the shares or equity interests of first-tier foreign subsidiaries and each U.S. entity whose assets substantially consist of capital stock and/or intercompany debt of one or more foreign subsidiaries, subject to certain exceptions. Certain of the Company's domestic subsidiaries are guarantors under the Credit Agreement.

The Credit Agreement contains various customary restrictive covenants that limit the Company's ability to, among other things: incur additional indebtedness; enter into sale or leaseback transactions; make investments, loans or advances; grant or incur liens on assets; sell assets; engage in mergers, consolidations, liquidations or dissolutions; engage in transactions with affiliates; and make dividend payments. The Credit Agreement requires the Company to maintain compliance with specified financial covenants, comprised of a minimum fixed charge coverage ratio, a maximum leverage ratio, and a minimum liquidity ratio, each as set forth in the Credit Agreement. The Company is also required to maintain, as of the last day of each fiscal quarter, unrestricted cash of at least $400.0 million, including $200.0 million in accounts held with lenders under the Credit Agreement or their affiliates. Non-compliance with these covenants may result in termination of the commitments under the Credit Agreement and any then outstanding borrowings may be declared due and payable immediately. The Company has the right to terminate the Credit Agreement or reduce the available commitments at any time.

As of December 31, 2014, the Company had no borrowings or letters of credit outstanding under the Credit Agreement and was in compliance with all covenants.

XML

Segment Information Gross Profit by Segment and Category (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Gross Profit by Category [Line Items]
Gross profit	$ 393,459	$ 380,144	$ 389,862	$ 385,721	$ 378,208	$ 359,622	$ 384,694	$ 379,009	$ 1,549,186		$ 1,501,533		$ 1,615,532
North America [Member]
Gross Profit by Category [Line Items]
Gross profit									731,983		712,837		655,309
EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit									556,914		570,126		689,184
ROW [Member]
Gross Profit by Category [Line Items]
Gross profit									260,289		218,570		271,039
Local [Member]
Gross Profit by Category [Line Items]
Gross profit									1,084,139	[1]	1,119,072	[1]	1,171,330	[1]
Local [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									1,084,139	[1]	1,119,854	[1]	1,169,421	[1]
Local [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0	[1]	(782)	[1]	1,909	[1]
Local [Member] | North America [Member]
Gross Profit by Category [Line Items]
Gross profit									581,067	[1]	581,941	[1]	543,625	[1]
Local [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									581,067	[1]	582,723	[1]	541,716	[1]
Local [Member] | North America [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0	[1]	(782)	[1]	1,909	[1]
Local [Member] | EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit									364,545	[1]	383,725	[1]	453,970	[1]
Local [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									364,545	[1]	383,725	[1]	453,970	[1]
Local [Member] | EMEA [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0	[1]	0	[1]	0	[1]
Local [Member] | ROW [Member]
Gross Profit by Category [Line Items]
Gross profit									138,527	[1]	153,406	[1]	173,735	[1]
Local [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									138,527	[1]	153,406	[1]	173,735	[1]
Local [Member] | ROW [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0	[1]	0	[1]	0	[1]
Goods [Member]
Gross Profit by Category [Line Items]
Gross profit									315,564		251,098		314,092
Goods [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									152,032		171,375		282,988
Goods [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									163,532		79,723		31,104
Goods [Member] | North America [Member]
Gross Profit by Category [Line Items]
Gross profit									93,922		82,072		84,476
Goods [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									5,112		15,319		48,288
Goods [Member] | North America [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									88,810		66,753		36,188
Goods [Member] | EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit									133,140		129,551		165,908
Goods [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									55,434		116,357		168,429
Goods [Member] | EMEA [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									77,706		13,194		(2,521)
Goods [Member] | ROW [Member]
Gross Profit by Category [Line Items]
Gross profit									88,502		39,475		63,708
Goods [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									91,486		39,699		66,271
Goods [Member] | ROW [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									(2,984)		(224)		(2,563)
Travel [Member]
Gross Profit by Category [Line Items]
Gross profit									149,483		131,363		130,110
Travel [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									149,483		131,363		129,581
Travel [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0		0		529
Travel [Member] | North America [Member]
Gross Profit by Category [Line Items]
Gross profit									56,994		48,824		27,208
Travel [Member] | North America [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									56,994		48,824		27,208
Travel [Member] | North America [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0		0		0
Travel [Member] | EMEA [Member]
Gross Profit by Category [Line Items]
Gross profit									59,229		56,850		69,306
Travel [Member] | EMEA [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									59,229		56,850		68,777
Travel [Member] | EMEA [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									0		0		529
Travel [Member] | ROW [Member]
Gross Profit by Category [Line Items]
Gross profit									33,260		25,689		33,596
Travel [Member] | ROW [Member] | Third party and other [Member]
Gross Profit by Category [Line Items]
Gross profit									33,260		25,689		33,596
Travel [Member] | ROW [Member] | Direct [Member]
Gross Profit by Category [Line Items]
Gross profit									$ 0		$ 0		$ 0

[1] (1)Includes gross profit from deals with local and national merchants and through local events.

XML

Segment Information Capital Expenditures (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Additions	$ 31,336	$ 28,916	$ 69,327
North America [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Additions	6,775	14,728	38,543
EMEA [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Additions	12,945	6,719	26,909
ROW [Member]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Additions	$ 11,616	$ 7,469	$ 3,875

XML

Cover Document (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014	Feb. 09, 2015
Entity Registrant Name	Groupon, Inc.
Entity Central Index Key	0001490281
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float		$ 3,340,614,720
Common Class A [Member]
Common Stock, Shares, Outstanding			672,963,103
Common Class B [Member]
Common Stock, Shares, Outstanding			2,399,976

XML

Stockholders' Equity Stockholders' Equity and Stock-Based Compensation (Note)

12 Months Ended

Dec. 31, 2014

Stockholders' Equity Note [Abstract]

Stockholders' Equity and Stock-Based Compensation Note [Text Block]

STOCKHOLDERS' EQUITY

Preferred Stock

The Company's Board of Directors ("the Board") has the authority, without approval by the stockholders, to issue up to a total of 50,000,000 shares of preferred stock in one or more series. The Board may establish the number of shares to be included in each such series and may fix the designations, preferences, powers and other rights of the shares of a series of preferred stock. The Board could authorize the issuance of preferred stock with voting or conversion rights that could dilute the voting power or rights of the holders of the Class A common stock or Class B common stock. As of December 31, 2014 and 2013, there were no shares of preferred stock outstanding.

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.

Holders of Class A common stock and Class B common stock have identical rights, except that holders of Class A common stock are entitled to one vote per share and holders of Class B common stock are entitled to 150 votes per share. Holders of shares of Class A common stock and Class B common stock will vote together as a single class on all matters (including the election of directors) submitted to a vote of stockholders, except that there will be separate votes of holders of shares of the Class A common stock and Class B common stock in the following circumstances:

• if the Company proposes to amend its certificate of incorporation to alter or change the powers, preferences or special rights of the shares of a class of its stock so as to affect them adversely or to increase or decrease the par value of the shares of a class of the Company's stock;

• if the Company proposes to treat the shares of a class of its stock differently with respect to any dividend or distribution of cash, property or shares of the Company's stock paid or distributed by the Company;

• if the Company proposes to treat the shares of a class of its stock differently with respect to any subdivision or combination of the shares of a class of the Company's stock; or

• if the Company proposes to treat the shares of a class of its stock differently in connection with a change in control, liquidation, dissolution, distribution of assets or winding down of the Company with respect to any consideration into which the shares are converted or any consideration paid or otherwise distributed to its stockholders.

The Company may not increase or decrease the authorized number of shares of Class A common stock or Class B common stock without the affirmative vote of the holders of a majority of the combined voting power of the outstanding shares of Class A common stock and Class B common stock, voting together as a single class. In addition, the Company may not issue any shares of Class B common stock, other than in connection with stock dividends, stock splits and similar transactions, unless that issuance is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class B common stock. There is no cumulative voting for the election of directors.

Except as otherwise expressly provided in the Company's certificate of incorporation or as required by applicable law, shares of Class A common stock and Class B common stock will have the same rights and privileges and rank equally, share ratably and be identical in all respects as to all matters, including, without limitation, those described below.

Subject to preferences that may apply to any shares of preferred stock outstanding at the time, the holders of Class A common stock and Class B common stock shall be entitled to share equally, ratably and identically, on a per share basis, with respect to any dividends that the Board may determine to issue from time to time, unless different treatment of the shares of such class is approved by the affirmative vote of the holders of the majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class. In the event a dividend is paid in the form of shares of common stock or rights to acquire shares of common stock, the holders of Class A common stock will receive shares of Class A common stock, or rights to acquire shares of Class A common stock, as the case may be, and the holders of Class B common stock will receive shares of Class B common stock, or rights to acquire shares of Class B common stock, as the case may be.

Upon liquidation, dissolution or winding-up of the Company, the holders of Class A common stock and Class B common stock will be entitled to share equally, ratably and identically in all assets remaining after the payment of any liabilities and the liquidation preferences on any outstanding preferred stock, unless different treatment of the shares of such class is approved by the affirmative vote of the holders of the majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

Upon (i) the closing of the sale, transfer or other disposition of all or substantially all of our assets, (ii) the consummation of a merger, consolidation, business combination or other similar transaction which results in our voting securities outstanding immediately prior to the transaction (or the voting securities issued with respect to our voting securities outstanding immediately prior to the transaction) representing less than a majority of the combined voting power and outstanding capital stock of the voting securities of the Company or the surviving or acquiring entity, (iii) the recapitalization, liquidation, dissolution or other similar transaction which results in the voting securities outstanding immediately prior to the transaction representing less than a majority of the combined voting power and outstanding capital stock of the Company or the surviving entity or parent entity or (iv) an issuance by the Company, in one transaction or a series of related transactions, of voting securities representing more than 2% of the total voting power of the Company (assuming the Class A common stock and Class B common stock each have one vote per share) to any person or group of affiliated persons who prior to such issuance held less than a majority of the total voting power of the Company (assuming the Class A common stock and Class B common stock each have one vote per share) and who subsequent to the issuance would hold a majority of the total voting power, the holders of Class A common stock and Class B common stock will be treated equally and identically with respect to shares of Class A common stock or Class B common stock owned by them, unless different treatment of the shares of each class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

If the Company subdivides or combines in any manner outstanding shares of Class A common stock or Class B common stock, the outstanding shares of the other class will be subdivided or combined in the same manner, unless different treatment of the shares of each class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Class A common stock and Class B common stock, each voting separately as a class.

Share Repurchase Program

The Board has authorized the Company to purchase up to $300.0 million of its outstanding Class A common stock through August 2015. The timing and amount of any share repurchases is determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time. During the years ended December 31, 2014 and 2013, the Company purchased 22,806,304 and 4,432,800 shares of Class A common stock, respectively, for an aggregate purchase price of $151.9 million and $46.6 million (including fees and commissions), respectively, under the share repurchase program. As of December 31, 2014, up to $101.5 million of Class A common stock remains available for repurchase under the share repurchase program.

XML

Fair Value Measurements Fair Value, Reconciliation of Level 3 - Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Convertible Debt			$ 370		$ 3,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	(1,340)		0		0
Cost Method Investments			34982		56940
Convertible debt securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
AFS Securities, Beginning Asset Value	3,174		3,087		0
AFS Debt Security, (losses) included in OCI	693		(283)		87
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	(1,340)		0		0
AFS Securities, Ending Asset Value	2,527		3,174		3,087
Unrealized Gains (Losses) Still Held - Assets	(647)	[1]	(283)	[1]	87	[1]
Redeemable preferred shares [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
AFS Securities, Beginning Asset Value	0		42,539		0
AFS Debt Security, (losses) included in OCI	311		0		0
AFS Securities, Ending Asset Value	4,910		0		42,539
Unrealized Gains (Losses) Still Held - Assets	311	[1]	(85,521)	[1]	(14,401)	[1]
Purchase of redeemable preferred shares	4,599		8,000		0
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities			$ (85,521)		$ (14,401)

[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.

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Segment Information Equity Method Investments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity Method Investments [Abstract]
Equity method investments	$ 1,231	$ 1,690	$ 495

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Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue:
Third party and other	$ 1,627,539	$ 1,654,654	$ 1,879,729
Direct	1,564,149	919,001	454,743
Total revenue	3,191,688	2,573,655	2,334,472
Cost of revenue:
Third party and other	241,885	232,062	297,739
Direct	1,400,617	840,060	421,201
Total cost of revenue	1,642,502	1,072,122	718,940
Gross profit	1,549,186	1,501,533	1,615,532
Operating expenses:
Marketing	269,043	214,824	336,854
Selling, general and administrative	1,293,716	1,210,966	1,179,080
Acquisition-related expense (benefit), net	1,269	(11)	897
Total operating expenses	1,564,028	1,425,779	1,516,831
(Loss) income from operations	(14,842)	75,754	98,701
Other expense, net	(33,353)	(94,663)	(3,759)
(Loss) income before provision for income taxes	(48,195)	(18,909)	94,942
Provision for income taxes	15,724	70,037	145,973
Net loss	(63,919)	(88,946)	(51,031)
Net income attributable to noncontrolling interests	(9,171)	(6,447)	(3,742)
Net loss attributable to Groupon, Inc.	(73,090)	(95,393)	(54,773)
Adjustment of redeemable noncontrolling interests to redemption value	0	0	(12,604)
Net loss attributable to common stockholders	$ (73,090)	$ (95,393)	$ (67,377)
Net loss per share
Basic, net (loss) earnings per share	$ (0.11)	$ (0.14)	$ (0.10)
Diluted, net (loss) earnings per share	$ (0.11)	$ (0.14)	$ (0.10)
Weighted average number of shares outstanding
Basic, weighted average number of shares outstanding	674,832,393	663,910,194	650,214,119
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Diluted, weighted average number of shares outstanding	674,832,393	663,910,194	650,214,119

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Property, Equipment and Software, Net (Notes)

12 Months Ended

Dec. 31, 2014

Property, Equipment and Software, Net [Abstract]

Property, Equipment and Software Disclosure [Text Block]

PROPERTY, EQUIPMENT AND SOFTWARE, NET

The following summarizes the Company's property, equipment and software, net (in thousands):

	December 31,
	2014			2013
Warehouse equipment	$	4,859		$	3,997
Furniture and fixtures	18,610			13,526
Leasehold improvements	39,900			35,830
Office and telephone equipment	4,448			5,062
Purchased software	40,448			22,499
Computer hardware(1)	135,731			84,673
Internally-developed software	133,598			79,113
Total property, equipment and software, gross	377,594			244,700
Less: accumulated depreciation and amortization	(195,119		)	(110,277		)
Property, equipment and software, net	$	182,475		$	134,423

(1) Includes computer hardware acquired under capital leases of $48.0 million and $11.8 million as of December 31, 2014 and 2013, respectively.    

Property, equipment and software are stated at cost and assets under capital leases are stated at the present value of minimum lease payments. Depreciation expense is recorded on a straight-line basis over the estimated useful lives of the assets (generally three years for computer hardware, purchased software and office and telephone equipment, five to ten years for furniture and fixtures and warehouse equipment, and the shorter of the term of the lease or the asset's useful life for leasehold improvements) and is primarily classified within "Selling, general and administrative" on the consolidated statements of operations. Depreciation and amortization expense on property, equipment and software, including internally-developed software, was $97.8 million, $67.8 million and $35.9 million for the years ended December 31, 2014, 2013 and 2012, respectively. These amounts include amortization expense of $7.2 million and $2.1 million on assets under capital leases for the years ended December 31, 2014 and 2013, respectively. Amortization expense recognized for assets under capital leases was not material for the year ended December 31, 2012. See Note 8, "Commitments and Contingencies" for further detail regarding capital leases.

As of December 31, 2014 and 2013, the carrying amount of internally-developed software, net of accumulated amortization, was $61.8 million and $47.9 million, respectively. Amortization expense for capitalized internally-developed software was $42.1 million, $25.2 million and $3.4 million for the years ended December 31, 2014, 2013 and 2012, respectively. For the year ended December 31, 2014, $11.7 million and $30.4 million of amortization expense for capitalized internally-developed software is included within "Cost of revenue" and "Selling, general and administrative," respectively, on the consolidated statements of operations. For the year ended December 31, 2013, $7.9 million and $17.3 million of amortization expense for capitalized internally-developed software is included within "Cost of revenue" and "Selling, general and administrative," respectively, on the consolidated statements of operations. For the year ended December 31, 2012, amortization expense for capitalized internally-developed software is primarily included within "Selling, general and administrative."

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Business Combinations and Acquisitions of Noncontrolling Interests

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combinations and Acquisitions of Noncontrolling Interests Disclosure [Text Block]

BUSINESS COMBINATIONS AND ACQUISITIONS OF NONCONTROLLING INTERESTS

2014 Acquisition Activity

The Company acquired six businesses during the year ended December 31, 2014.  Business combinations are accounted for using the acquisition method, and the results of acquired businesses are included in the consolidated financial statements beginning on the respective acquisition dates. 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 years endedDecember 31, 2014 and 2013, $3.7 million and $3.2 million of external transaction costs related to business combinations, primarily consisting of legal and advisory fees, are classified within "Acquisition-related expense (benefit), net" on the consolidated statements of operations, respectively. Such costs were not material for the year ended December 31, 2012.

LivingSocial Korea, Inc.

On January 2, 2014, the Company acquired all of the outstanding equity interests of LivingSocial Korea, Inc., a Korean corporation and holding company of Ticket Monster Inc. ("Ticket Monster"). 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 primary purpose of this acquisition was to grow the Company's merchant and customer base and expand its presence in the Korean e-commerce market. The aggregate acquisition-date fair value of the consideration transferred for the Ticket Monster acquisition totaled $259.4 million, which consisted of the following (in thousands):

Cash	$	96,496
Issuance of 13,825,283 shares of Class A common stock	162,862
Total	$	259,358

The fair value of the Class A Common Stock issued as consideration was measured based on the stock price upon closing of the transaction on January 2, 2014.

The following table summarizes the allocation of the aggregate acquisition price of the Ticket Monster acquisition (in thousands):

Cash and cash equivalents	$	24,768
Accounts receivable	17,732
Deferred income taxes	1,264
Prepaid expenses and other current assets	829
Property, equipment and software	5,944
Goodwill	218,692
Intangible assets:(1)
Subscriber relationships	57,022
Merchant relationships	32,176
Developed technology	571
Trade name	19,325
Other non-current assets	3,033
Total assets acquired	$	381,356
Accounts payable	$	5,951
Accrued merchant and supplier payables	82,934
Accrued expenses	22,700
Other current liabilities	3,482
Deferred income taxes, non-current	1,264
Other non-current liabilities	5,667
Total liabilities assumed	$	121,998
Total acquisition price	$	259,358

(1) The estimated useful lives of the acquired intangible assets are 5 years for subscriber relationships, 3 years for merchant relationships, 2 years for developed technology and 5 years for trade name.

    Ideeli, Inc.

On January 13, 2014, the Company acquired all of the outstanding equity interests of Ideeli, Inc. (d/b/a "Ideel"), a fashion flash site based in the United States. The primary purpose of this acquisition was to expand and advance the Company's product offerings. The aggregate acquisition-date fair value of the consideration transferred for the Ideel acquisition totaled $42.7 million in cash.

The following table summarizes the allocation of the aggregate acquisition price of the Ideel acquisition (in thousands):

Cash and cash equivalents	$	79
Accounts receivable	988
Deferred income taxes	640
Prepaid expenses and other current assets	22,081
Property, equipment and software	8,173
Goodwill	4,203
Intangible assets:(1)
Subscriber relationships	5,490
Brand relationships	7,100
Trade name	4,500
Deferred income taxes, non-current	8,877
Total assets acquired	$	62,131
Accounts payable	$	1,640
Accrued supplier payables	4,092
Accrued expenses	9,118
Other current liabilities	482
Deferred income taxes, non-current	348
Other non-current liabilities	3,753
Total liabilities assumed	$	19,433
Total acquisition price	$	42,698

(1) The estimated useful lives of the acquired intangible assets are 3 years for subscriber relationships, 5 years for brand relationships and 5 years for trade name.

Other Acquisitions

The Company acquired four other businesses during the year ended December 31, 2014. The primary purpose of these acquisitions was to acquire an experienced workforce, expand and advance product offerings and enhance technology capabilities. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $32.9 million, which consisted of the following (in thousands):

Cash	$	17,364
Issuance of 1,429,897 shares of Class A common stock	11,110
Contingent consideration	4,388
Total	$	32,862

The fair value of the Class A Common Stock issued as consideration for one of the acquisitions was measured based on the stock price upon closing of the related transaction on November 13, 2014.

The following table summarizes the allocation of the aggregate purchase price of these other acquisitions (in thousands):

Net working capital (including acquired cash of $0.2 million)	$	(396	)
Goodwill	27,150
Intangible assets: (1)
Subscriber relationships	2,555
Developed technology	3,372
Brand relationships	579
Deferred income taxes, non-current	(398		)
Total purchase price	$	32,862

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations presented below do not include the results of these other acquisitions because the effects of these acquisitions, individually and in the aggregate, were not material to the Company's consolidated results of operations.

Pro Forma Financial Information

     The following unaudited pro forma information presents the combined operating results of the Company for the year endedDecember 31, 2013, as if the Company had acquired Ticket Monster and Ideel as of January 1, 2013 (in thousands). Pro forma results of operations have not been presented for the year ended December 31, 2014, because the operating results of Ticket Monster and Ideel from January 1, 2014 through their respective acquisition dates were not material to the Company's consolidated results of operations for the year ended December 31, 2014. The underlying pro forma results include the historical financial results of the Company and these two acquired businesses adjusted for depreciation and amortization expense associated with the assets acquired. The unaudited pro forma results do not reflect any operating efficiencies or potential cost savings which may result from the consolidation of the operations of the Company and the acquired entities. Accordingly, these unaudited pro forma results are not necessarily indicative of what the actual results of operations of the combined company would have been if the acquisitions had occurred as of January 1, 2013, nor are they indicative of future results of operations.

	Year Ended   December 31, 2013
Revenue	$	2,763,639
Net loss	(217,613		)

     The revenue and net loss of Ticket Monster included in our consolidated statements of operations were $149.6 million and $45.4 million, respectively, for the year ended December 31, 2014. The revenue and net loss of Ideel included in our consolidated statements of operations were $82.4 million and $12.3 million, respectively, for the year ended December 31, 2014.

2013 Acquisition Activity

The primary purpose of the Company's seven acquisitions during the year ended December 31, 2013 was to enhance the Company's technology capabilities, acquire experienced workforces and expand and advance product offerings. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $16.1 million, which consisted of the following (in thousands):

Cash	$	9,459
Issuance of Class A common stock	3,051
Contingent consideration	3,567
Total	$	16,077

The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2013 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,728
Property and equipment	99
Goodwill	9,504
Intangible assets: (1)
Subscriber relationships	1,928
Merchant relationships	757
Developed technology	2,742
Other intangible assets	50
Net deferred tax liabilities	(731		)
Total acquisition price	$	16,077

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations have not been presented because the effects of these business combinations, individually and in the aggregate, were not material to the Company's consolidated results of operations.

2012 Acquisition Activity

The primary purpose of the Company's ten acquisitions during the year ended December 31, 2012 was to enhance the Company's technology and marketing capabilities and to expand and advance product offerings. The aggregate acquisition-date fair value of the consideration transferred for these acquisitions totaled $54.9 million, which consisted of the following (in thousands):

Cash	$	49,013
Purchase price obligations	2,485
Contingent consideration	3,400
Total	$	54,898

The following table summarizes the allocation of the aggregate acquisition price of acquisitions for the year ended December 31, 2012 (in thousands):

Net working capital (including acquired cash of $2.1 million)	$	1,750
Property and equipment	165
Goodwill	39,170
Intangible assets:(1)
Subscriber relationships	170
Merchant relationships	1,500
Developed technology	14,350
Net deferred tax liabilities	(2,207		)
Total acquisition price	$	54,898

(1) Acquired intangible assets have estimated useful lives of between 1 and 5 years.

Pro forma results of operations have not been presented because the effects of these business combinations, individually and in the aggregate, were not material to the Company's consolidated results of operations.

Purchases of Additional Interests in Consolidated Subsidiaries

During the year ended December 31, 2014, the Company acquired additional interests in majority-owned subsidiaries for an aggregate acquisition price of $3.9 million. Cash consideration of $2.3 million was paid in 2014 and the remaining amounts of $1.0 million and $0.6 million are included within other current liabilities and other non-current liabilities, respectively, on the consolidated balance sheet as of December 31, 2014.

During the year ended December 31, 2012, the Company acquired additional interests in majority-owned subsidiaries for an aggregate acquisition price of $16.7 million, including $16.1 million of cash consideration and $0.6 million of Class A common stock. Cash consideration of $14.1 million was paid in 2012 and the remaining $2.0 million was paid in 2013. Additionally, in connection with these transactions, certain liability-classified subsidiary stock-based compensation awards were settled in exchange for $15.2 million of cash, $2.3 million of Class A common stock and $10.5 million of deferred compensation that was subsequently recognized as compensation expense over service periods of between one and two years. Cash settlements of $14.0 million were paid in 2012, and the remaining $1.2 million was paid in 2013.

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Loss Per Share of Class A and Class B Common Stock

12 Months Ended

Dec. 31, 2014

LOSS PER SHARE OF CLASS A AND CLASS B COMMON STOCK [Abstract] [Abstract]

Loss Per Share of Class A and Class B Common Stock [Text Block]

LOSS PER SHARE OF CLASS A AND CLASS B COMMON STOCK

The Company computes loss per share of Class A and Class B common stock using the two-class method. Basic loss per share is computed using the weighted-average number of common shares outstanding during the period. Diluted 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, performance share units and ESPP shares. The dilutive effect of these equity awards are reflected in diluted loss per share by application of the treasury stock method. The computation of the diluted loss per share of Class A common stock assumes the conversion of Class B common stock, if dilutive, while the diluted 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 loss per share of Class A common stock, the undistributed earnings are equal to net income for that computation.

The following table sets forth the computation of basic and diluted loss per share of Class A and Class B common stock for the years endedDecember 31, 2014, 2013 and 2012 (in thousands, except share amounts and per share amounts):

	Year Ended December 31,
	2014						2013						2012
	Class A			Class B			Class A			Class B			Class A			Class B
Basic loss per share:
Numerator
Allocation of net loss	$	(63,691	)	$	(228	)	$	(88,626	)	$	(320	)	$	(50,842	)	$	(189	)
Less: Allocation of adjustment of redeemable noncontrolling interests to redemption value	—			—			—			—			12,557			47
Less: Allocation of net income attributable to noncontrolling interests	9,138			33			6,424			23			3,728			14
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Basic loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)
Diluted loss per share:
Numerator
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B(1)	—			—			—			—			—			—
Allocation of net loss attributable to common stockholders	$	(72,829	)	$	(261	)	$	(95,050	)	$	(343	)	$	(67,127	)	$	(250	)
Denominator
Weighted-average common shares outstanding used in basic computation	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Conversion of Class B(1)	—			—			—			—			—			—
Employee stock options(1)	—			—			—			—			—			—
Restricted shares and RSUs(1)	—			—			—			—			—			—
Weighted-average diluted shares outstanding(1)	672,432,417			2,399,976			661,510,218			2,399,976			647,814,143			2,399,976
Diluted loss per share	$	(0.11	)	$	(0.11	)	$	(0.14	)	$	(0.14	)	$	(0.10	)	$	(0.10	)

(1) Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted loss per share calculation for the years endedDecember 31, 2014, 2013 and 2012 because the effect would be antidilutive.

The following outstanding equity awards are not included in the diluted loss per share calculation above because they would have had an antidilutive effect:

	Year Ended December 31,
	2014	2013	2012
Stock options	2,775,771	5,594,033	7,713,421
Restricted stock units	42,341,320	39,618,897	29,699,348
Restricted stock	52,854	298,292	577,048
ESPP shares	507,916	444,439	271,402
Total	45,677,861	45,955,661	38,261,219

In addition to the antidilutive awards as set forth in the table above, the Company also granted approximately 2,000,000 performance share units in connection with its acquisition of Ticket Monster during the year endedDecember 31, 2014. Contingently issuable shares are excluded from the computation of diluted EPS if, based on current period results, the shares would not be issuable if the end of the reporting period were the end of the contingency period. These outstanding performance share units have been excluded from the table above for the year endedDecember 31, 2014 as the performance conditions were not satisfied as of the end of the period.

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Compensation Arrangements (Notes)

12 Months Ended

Dec. 31, 2014

Compensation Arrangements [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

COMPENSATION ARRANGEMENTS

Groupon, Inc. Stock Plans

In January 2008, the Company adopted the ThePoint.com 2008 Stock Option Plan, as amended (the "2008 Plan"), under which options for up to 64,618,500 shares of common stock were authorized to be issued to employees, consultants and directors of ThePoint.com, which is now the Company. In April 2010, the Company established the Groupon, Inc. 2010 Stock Plan, as amended in April 2011 (the "2010 Plan"), under which options and restricted stock units ("RSUs") for up to 20,000,000 shares of common stock were authorized for future issuance to employees, consultants and directors of the Company. In August 2011, the Company established the Groupon, Inc. 2011 Stock Plan (the "2011 Plan"), under which options, RSUs and performance stock units for up to 50,000,000 shares of common stock were authorized for future issuance to employees, consultants and directors of the Company.

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 December 31, 2014, 44,043,631 shares were available for future issuance under the Plans. Prior to January 2008, the Company issued stock options and RSUs that are governed by employment agreements, some of which are still outstanding.

The Company recognized stock-based compensation expense of $122.0 million, $121.5 million and $104.1 million for the years endedDecember 31, 2014, 2013 and 2012, respectively, related to stock awards issued under the Plans, acquisition-related awards and subsidiary awards. The Company also capitalized $11.2 million, $9.1 million and $9.7 million of stock-based compensation for the years ended December 31, 2014, 2013 and 2012, respectively, in connection with internally-developed software.

As of December 31, 2014, a total of $221.7 million of unrecognized compensation costs related to unvested 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 years endedDecember 31, 2014 and 2013, 857,171 and 774,288 shares of common stock were issued under the ESPP, respectively. No shares of common stock were issued under the ESPP for the year ended December 31, 2012.

Stock Options

The exercise price of stock options granted is equal to the fair value of the underlying stock on the date of grant. The contractual term for stock options expires ten years from the grant date. Stock options generally vest over a three or four-year period, with 25% of the awards vesting after one year and the remainder of the awards vesting on a monthly or quarterly basis thereafter. The fair value of stock options on the date of grant is amortized on a straight-line basis over the requisite service period.

The table below summarizes the stock option activity for the year ended December 31, 2014:

	Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands) (1)
Outstanding at December 31, 2013	3,355,054		$	1.11	6.04	$	35,742
Exercised	(1,029,471	)	$	1.09
Forfeited	(62,589	)	$	2.41
Outstanding at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226
Exercisable at December 31, 2014	2,262,994		$	1.09	5.03	$	16,226

(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 December 31, 2014 and 2013, respectively.

The fair value of stock options granted was estimated on the date of grant using the Black-Scholes-Merton option-pricing model. Expected volatility was based on historical volatilities for publicly-traded options of comparable companies over the estimated expected life of the stock options. The expected term represents the period of time the stock options are expected to be outstanding and was based on the "simplified method." The Company used the "simplified method" due to the lack of sufficient historical exercise data to provide a reasonable basis upon which to otherwise estimate the expected life of the stock options. The risk-free interest rate was based on yields on U.S. Treasury STRIPS with a maturity similar to the estimated expected life of the stock options.

The Company did not grant any stock options during the years ended December 31, 2014, 2013 and 2012. The total intrinsic value of options that were exercised during the years ended December 31, 2014, 2013 and 2012 was $6.5 million, $30.0 million and $75.2 million, 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.

The table below summarizes activity regarding unvested restricted stock units under the Plans for the year ended December 31, 2014:

	Restricted Stock Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	41,648,055		$	8.06
Granted	29,568,490		$	7.59
Vested	(17,323,096	)	$	8.07
Forfeited	(12,555,522	)	$	7.96
Unvested at December 31, 2014	41,337,927		$	7.78

The weighted-average grant date fair value of restricted stock units granted in 2013 and 2012 was $7.23 and $8.99, respectively. The fair value of restricted stock units that vested during each of the three years ended December 31, 2014, 2013 and 2012 was $139.8 million, $126.5 million and $50.2 million, respectively.

Performance Share Units

The Company completed its acquisition of Ticket Monster on January 2, 2014, as described in Note 3 "Business Combinations and Acquisitions of Noncontrolling Interests," 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 is 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 is 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. For the performance period ending December 31, 2014, 0.8 million performance share units were forfeited because the performance conditions were not met.

The table below summarizes activity regarding unvested performance share units for the year ended December 31, 2014:    

	Performance Share Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	—		$	—
Granted	1,983,232		$	8.07
Vested	—		$	—
Forfeited	(967,388	)	$	8.07
Unvested at December 31, 2014	1,015,844		$	8.07

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 year ended December 31, 2014:

	Restricted Stock Awards		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	97,677		$	14.00
Granted	—		$	—
Vested	(50,481	)	$	14.54
Forfeited	(13,129	)	$	17.07
Unvested at December 31, 2014	34,067		$	15.53

The fair value of restricted stock that vested during the years ended December 31, 2014, 2013 and 2012 was $0.7 million, $4.1 million and $10.2 million, respectively.

Subsidiary Awards

The Company made several acquisitions during the years ended December 31, 2011 and 2010 in which the selling shareholders of the acquired companies were granted RSUs and stock options in the Company's subsidiaries ("subsidiary awards"). These subsidiary awards were issued in conjunction with the acquisitions as a way to retain and motivate key employees. They generally vested on a quarterly basis for a period of three or four years, and were potentially dilutive to the Company's ownership percentage of the corresponding subsidiaries. A significant portion of the subsidiary awards were classified as liabilities on the consolidated balance sheets due to the existence of put rights that allowed the selling shareholders to put their stock back to the Company. The liabilities for the subsidiary awards were remeasured on a quarterly basis, with the offset to stock-based compensation expense within "Selling, general and administrative" on the consolidated statements of operations. The Company modified its liability-classified subsidiary awards in 2012 by paying $17.0 million in cash and issuing 660,539 shares of the Company's common stock to settle the vested portion and providing for future settlement of the unvested portion in cash or shares of the Company's common stock upon completion of the requisite service period. See Purchases of Additional Interests in Consolidated Subsidiaries in Note 3 "Business Combinations and Acquisitions of Noncontrolling Interests."

Swiss Pension Plan

The Company maintains a pension plan covering employees in Switzerland pursuant to the requirements of Swiss pension law. Contributions to the Swiss pension plan are paid by the employees and the employer. Certain features of the plan require it to be categorized as a defined benefit plan under U.S. GAAP. These features include a minimum interest guarantee on retirement savings accounts, a pre-determined factor for converting accumulated savings account balances into a pension, and death and disability benefits. The projected benefit obligation and net unfunded pension liability were $4.9 million and $2.0 million, respectively, as of December 31, 2014 and the net periodic pension cost was $0.6 million for the year then ended.

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Loss Per Share of Class A and Class B Common Stock Basic and Diluted Earnings Per Share, 2013, 2012 and 2011 (Details) (USD $)	3 Months Ended									12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Earnings Per Share, Basic [Abstract]
Net loss										$ (63,919,000)		$ (88,946,000)		$ (51,031,000)
Noncontrolling Interest, Change in Redemption Value										0		0		12,604,000
Net income attributable to noncontrolling interests										9,171,000		6,447,000		3,742,000
Net loss attributable to common stockholders	11,384,000	(19,018,000)	(20,922,000)	(35,363,000)	(78,861,000)	[1]	(1,292,000)	(5,551,000)	(3,242,000)	(73,090,000)		(95,393,000)		(67,377,000)
Basic, weighted average number of shares outstanding	671,885,967	669,526,524	675,538,392	682,378,690	668,046,073		666,432,848	662,361,436	658,800,417	674,832,393		663,910,194		650,214,119
Basic, net (loss) earnings per share	$ 0.01	$ (0.03)	$ (0.03)	$ (0.06)	$ (0.12)		$ 0.00	$ (0.01)	$ (0.01)	$ (0.11)		$ (0.14)		$ (0.10)
Earnings Per Share, Diluted [Abstract]
Basic, weighted average number of shares outstanding	671,885,967	669,526,524	675,538,392	682,378,690	668,046,073		666,432,848	662,361,436	658,800,417	674,832,393		663,910,194		650,214,119
Diluted, weighted average number of shares outstanding	681,543,847	669,526,524	675,538,392	682,378,690	668,046,073		666,432,848	662,361,436	658,800,417	674,832,393		663,910,194		650,214,119
Diluted, net (loss) earnings per share	$ 0.01	$ (0.03)	$ (0.03)	$ (0.06)	$ (0.12)		$ 0.00	$ (0.01)	$ (0.01)	$ (0.11)		$ (0.14)		$ (0.10)
Common Class A [Member]
Earnings Per Share, Basic [Abstract]
Net loss										(63,691,000)		(88,626,000)		(50,842,000)
Noncontrolling Interest, Change in Redemption Value														12,557,000
Net income attributable to noncontrolling interests										9,138,000		6,424,000		3,728,000
Net loss attributable to common stockholders										(72,829,000)		(95,050,000)		(67,127,000)
Basic, weighted average number of shares outstanding										672,432,417		661,510,218		647,814,143
Basic, net (loss) earnings per share										$ (0.11)		$ (0.14)		$ (0.10)
Earnings Per Share, Diluted [Abstract]
Net Income (Loss) Available to Common Stockholders, Diluted										(72,829,000)		(95,050,000)		(67,127,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B										0	[2]	0	[2]	0	[2]
Allocation of net income attributable to common stockholders										(72,829,000)		(95,050,000)		(67,127,000)
Basic, weighted average number of shares outstanding										672,432,417		661,510,218		647,814,143
Conversion of Class B										0	[2]	0	[2]	0	[2]
Employee stock options										0	[2]	0	[2]	0	[2]
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units										0	[2]	0	[2]	0	[2]
Diluted, weighted average number of shares outstanding										672,432,417	[2]	661,510,218	[2]	647,814,143	[2]
Diluted, net (loss) earnings per share										$ (0.11)		$ (0.14)		$ (0.10)
Common Class B [Member]
Earnings Per Share, Basic [Abstract]
Net loss										(228,000)		(320,000)		(189,000)
Noncontrolling Interest, Change in Redemption Value														47,000
Net income attributable to noncontrolling interests										33,000		23,000		14,000
Net loss attributable to common stockholders										(261,000)		(343,000)		(250,000)
Basic, weighted average number of shares outstanding										2,399,976		2,399,976		2,399,976
Basic, net (loss) earnings per share										$ (0.11)		$ (0.14)		$ (0.10)
Earnings Per Share, Diluted [Abstract]
Net Income (Loss) Available to Common Stockholders, Diluted										(261,000)		(343,000)		(250,000)
Reallocation of net income attributable to common stockholders as a result of conversion of Class B										0	[2]	0	[2]	0	[2]
Allocation of net income attributable to common stockholders										(261,000)		(343,000)		(250,000)
Basic, weighted average number of shares outstanding										2,399,976		2,399,976		2,399,976
Conversion of Class B										0	[2]	0	[2]	0	[2]
Employee stock options										0	[2]	0	[2]	0	[2]
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units										$ 0	[2]	$ 0	[2]	$ 0	[2]
Diluted, weighted average number of shares outstanding										2,399,976	[2]	2,399,976	[2]	2,399,976	[2]
Diluted, net (loss) earnings per share										$ (0.11)		$ (0.14)		$ (0.10)

[1] (1)Net loss and net loss attributable to Groupon, Inc. for the quarter ended December 31, 2013 included an impairment of the Company's investment in F-tuan of $85.5 million ($77.8 million, net of tax). See Note 6 "Investments."

[2] Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted loss per share calculation for the years ended December 31, 2014, 2013 and 2012 because the effect would be antidilutive.

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Supplemental Consolidated Balance Sheet and Statement of Operations Information

12 Months Ended

Dec. 31, 2014

SUPPLEMENTAL CONSOLIDATED BALANCE SHEET AND STATEMENT OF OPERATIONS INFORMATION [Abstract]

Additional Financial Information Disclosures [Text Block]

SUPPLEMENTAL CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS INFORMATION

The following table summarizes the Company's other expense, net for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Interest income	$	1,564		$	1,721		$	2,522
Interest expense	(907		)	(291		)	—
Gain on E-Commerce transaction	—			—			56,032
Impairments of investments	(2,036		)	(85,925		)	(50,553		)
Loss on equity method investments	(459		)	(44		)	(9,925		)
Foreign exchange (losses) gains, net	(31,526		)	(10,271		)	1,403
Other	11			147			(3,238		)
Other expense, net	$	(33,353	)	$	(94,663	)	$	(3,759	)

The following table summarizes the Company's prepaid expenses and other current assets as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Current portion of unamortized tax effects on intercompany transactions	$	14,193	$	28,502
Finished goods inventories	57,134		57,097
Prepaid expenses	42,231		29,404
Restricted cash	12,019		14,579
Income taxes receivable	41,788		39,994
VAT receivable	17,746		12,966
Prepaid marketing	7,443		17,301
Other	15,437		10,572
Total prepaid expenses and other current assets	$	207,991	$	210,415

The following table summarizes the Company's accrued merchant and supplier payables as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Accrued merchant payables	$	632,605	$	518,233
Accrued supplier payables(1)	277,962		234,710
Total accrued merchant and supplier payables	$	910,567	$	752,943

(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 December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Marketing	$	15,962	$	12,001
Refunds reserve	33,238		38,597
Payroll and benefits	65,743		64,966
Customer credits	44,463		44,728
Professional fees	14,292		18,906
Other	56,654		47,788
Total accrued expenses	$	230,352	$	226,986

The following table summarizes the Company's other current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Income taxes payable	$	14,461	$	21,994
VAT payable	33,436		37,627
Sales taxes payable	9,042		10,412
Deferred revenue	43,903		47,259
Capital lease obligations	14,872		3,636
Other	14,598		11,790
Total other current liabilities	$	130,312	$	132,718

The following table summarizes the Company's other non-current liabilities as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014		2013
Long-term tax liabilities	$	82,138	$	109,286
Deferred rent	13,200		9,148
Capital lease obligations	23,387		5,665
Other	17,559		7,598
Total other non-current liabilities	$	136,284	$	131,697

The following table summarizes the components of accumulated other comprehensive income, net of tax, as of December 31, 2014, 2013 and 2012 (in thousands):

	Foreign currency translation adjustments		Unrealized loss on available-for-sale securities			Pension liability adjustment			Total
Balance as of December 31, 2012	$	12,393	$	53		$	—		$	12,446
Other comprehensive income	12,559		(175		)	—			12,384
Balance as of December 31, 2013	24,952		(122		)	—			24,830
Other comprehensive income (loss) before reclassification adjustments	11,812		(210		)	(1,500		)	10,102
Reclassification adjustment for impairment included in net loss	—		831			—			831
Other comprehensive income (loss)	11,812		621			(1,500		)	10,933
Balance as of December 31, 2014	$	36,764	$	499		$	(1,500	)	$	35,763

The effects of amounts reclassified from accumulated other comprehensive income to net loss for the years endedDecember 31, 2014, 2013 and 2012 are presented within the following line items in the consolidated statements of operations (in thousands):

	Year Ended December 31,							Consolidated Statements of Operations Line Item
	2014			2013		2012
Other-than-temporary impairment of available-for-sale security	$	1,340		$	—	$	—	Other expense, net
Less: Tax effect	(509		)	—		—		Provision for income taxes
Reclassification adjustment	$	831		$	—	$	—

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

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Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2014

GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

GOODWILL AND OTHER INTANGIBLE ASSETS

The following table summarizes the Company's goodwill activity by segment for the years ended December 31, 2014 and 2013 (in thousands):

	North America			International			EMEA			Rest of World			Consolidated
Balance as of December 31, 2012	$	79,276		$	127,408		$	—		$	—		$	206,684
Reallocation to new segments	—			(124,770		)	105,347			19,423			—
Goodwill related to acquisitions	4,893			—			4,611			—			9,504
Other adjustments(1)	1,288			(2,638		)	5,711			278			4,639
Balance as of December 31, 2013	$	85,457		$	—		$	115,669		$	19,701		$	220,827
Goodwill related to acquisitions	31,353			—			—			218,692			250,045
Other adjustments(1)	(92		)	—			(13,490		)	(9,480		)	(23,062		)
Balance as of December 31, 2014	$	116,718		$	—		$	102,179		$	228,913		$	447,810

(1) Represents the impact of changes in foreign exchange rates on goodwill.

The Company evaluates goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. No goodwill impairments were recognized for the years ended December 31, 2014, 2013 and 2012.

The following tables summarize the Company's intangible assets (in thousands):

	December 31, 2014
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	103,858	$	48,754	$	55,104
Merchant relationships	39,448		18,677		20,771
Trade names	29,190		10,666		18,524
Developed technology	25,903		21,989		3,914
Brand relationships	7,664		1,486		6,178
Other intangible assets	17,045		10,979		6,066
Total	$	223,108	$	112,551	$	110,557

	December 31, 2013
Asset Category	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Subscriber relationships	$	45,541	$	30,866	$	14,675
Merchant relationships	9,186		7,991		1,195
Trade names	6,739		6,739		—
Developed technology	23,038		19,547		3,491
Other intangible assets	16,776		7,694		9,082
Total	$	101,280	$	72,837	$	28,443

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 $47.1 million, $21.6 million and $19.9 million for the years endedDecember 31, 2014, 2013 and 2012, respectively. As of December 31, 2014, the Company's estimated future amortization expense related to intangible assets is as follows (in thousands):

Years Ended December 31,
2015	$	40,495
2016	33,707
2017	18,653
2018	17,617
2019	85
Thereafter	—
Total	$	110,557

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Investments

12 Months Ended

Dec. 31, 2014

Investments, All Other Investments [Abstract]

Cost and Equity Method Investments Disclosure [Text Block]

INVESTMENTS

The following table summarizes the Company's investments (dollars in thousands):

	December 31, 2014		Percent Ownership of Voting Stock					December 31, 2013		Percent Ownership of Voting Stock
Cost and equity method investments:
Cost method investments	$	15,630	6	%	to	19	%	$	15,788	6	%	to	19	%
Equity method investments	1,231		21	%	to	50	%	1,690		21	%	to	50	%
Total cost and equity method investments	16,861							17,478
Available-for-sale securities:
Convertible debt securities	2,527							3,174
Redeemable preferred shares	4,910		17	%	to	19	%	—		19	%
Total available-for-sale securities	7,437							3,174
Total investments	$	24,298						$	20,652

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 December 31, 2014 and 2013, respectively (in thousands):

	December 31, 2014								December 31, 2013
	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	$	2,030	$	497	$	—	$	2,527	$	3,370	$	—	$	(196	)	$	3,174
Redeemable preferred shares	4,599		311		—		4,910		—		—		—			—
Total available-for-sale securities	$	6,629	$	808	$	—	$	7,437	$	3,370	$	—	$	(196	)	$	3,174

Investments in E-Commerce and Life Media (F-Tuan)

In June 2012, Life Media Limited ("F-tuan"), an entity with operations in China, acquired the Company's 49.8% interest in E-Commerce King Limited ("E-Commerce"), an entity with operations in China. In exchange for its interest in E-Commerce and an additional $25.0 million of cash consideration, the Company received a 19.1% interest in F-tuan in the form of common and Series E preferred shares. The Company recognized a non-operating gain of $56.0 million as a result of the transaction, which is included within "Other expense, net" on the consolidated statement of operations for the year ended December 31, 2012. The gain represented the excess of the fair value of the Company's investments in F-tuan over the carrying value of its E-Commerce investment as of the date of the transaction and the $25.0 million of cash consideration.

In August 2013, the Company entered into an exchange transaction with F-tuan whereby it received newly issued shares of Series F preferred stock in exchange for all shares of F-tuan common stock previously held by the Company and $8.0 million of cash consideration, which was paid in two installments of $6.5 million and $1.5 million in August and October 2013, respectively. The transaction was recorded at cost. The Company’s investments in F-tuan following this transaction are in the form of Series E and Series F preferred shares. Those preferred shares rank pari passu with certain other classes of F-tuan’s outstanding preferred stock and have an aggregate liquidation preference of $85.5 million. The Company’s voting interest in F-tuan remained 19.1% after the transaction.

The Company's investments in the Series E and Series F preferred shares of F-tuan are classified as available-for-sale securities because the investee's Memorandum of Association provides for redemption of the preferred shares at the Company's option beginning in October 2017. The Company's investment in the common shares of F-tuan, which were held prior to the August 2013 exchange transaction, was accounted for using the cost method of accounting because the Company did not have the ability to exercise significant influence over the operating and financial policies of the investee. As discussed below, the Company's investments in F-tuan were written down to zero through an other-than-temporary impairment charge as of December 31, 2013, and continue to have an estimated fair value of zero as of December 31, 2014.

Other Investments

In February 2014, the Company acquired redeemable preferred shares in an online home services company for $4.6 million. The shares are accounted for as available-for-sale securities.

In February 2013, the Company purchased preferred shares in a non-U.S.-based payment processor for $13.6 million. The Company purchased $2.1 million of additional preferred shares from that entity in July 2014. This investment is accounted for using the cost method of accounting because the Company does not have the ability to exercise significant influence over the operating and financial policies of the investee.

Other-Than-Temporary Impairment

For the year ended December 31, 2014, the Company recorded $2.0 million of other-than-temporary impairments, including a $1.3 million impairment of an investment in convertible debt securities, which are reported within "Other expense, net" on the consolidated statements of operations.

For the year ended December 31, 2013, the Company recorded an $85.5 million other-than-temporary impairment of its investments in F-tuan. F-tuan has operated at a loss since its inception and has used proceeds from equity offerings to fund investments in marketing and other initiatives to grow its business. As discussed above, the Company participated in an equity funding round in 2013 and the aggregate cash proceeds raised by F-tuan in that round, which were funded in two installments in September and October 2013 and included proceeds received from another investor, were intended to fund its operations for approximately six months, at which time additional financing would be required. In December 2013, the Company was notified by F-tuan's largest shareholder, which had served as a source of funding and operational support, that they had made a strategic decision to cease providing support to F-tuan. At its December 12, 2013 meeting, the Company's Board of Directors discussed the Company's strategy with respect to the Chinese market in light of this information. After that meeting, management pursued opportunities to divest its minority investment in F-tuan either for cash or in exchange for a minority equity investment in a larger competitor, but no agreement was ultimately reached. At its February 11, 2014 meeting, the Board of Directors determined that the Company should not provide funding to F-tuan in future periods. At that time, F-tuan required additional financing to continue its operations. Given the uncertainty as to whether it would be able to obtain such financing and the Company's decision not to provide significant funding itself, the Company concluded that there was substantial doubt as to F-tuan's ability to operate as a going concern for the foreseeable future.

The Company's evaluation of other-than-temporary impairments involves consideration of qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. As a result of F-tuan's liquidity needs, the decision by existing shareholders to cease providing support, the Company's inability to find a buyer for its minority investment, the Company's decision not to be a source of significant funding itself and the expectation that any subsequent third party investment, if one occurs, would substantially dilute the existing shareholders, the Company concluded that its investment in F-tuan was other-than-temporarily impaired and its best estimate of fair value was zero. Accordingly, the Company recognized an $85.5 million impairment charge in earnings for the year ended December 31, 2013, bringing the fair value of the investment to zero. The Company's investments in F-tuan continue to have an estimated fair value of zero as of December 31, 2014.

For the year ended December 31, 2012, the Company recorded a $50.6 million other-than-temporary impairment of its investments in F-tuan. As described above, the Company obtained these investments in June 2012 as part of a transaction in which it received a 19% interest in F-tuan, in the form of common and Series E preferred shares, in exchange for its 49.8% interest in E-Commerce and an additional $25.0 million of cash consideration. The $128.1 million acquisition-date fair value of the investments in F-tuan, a nonpublic entity, was determined using the discounted cash flow method, which is an income approach, and the resulting value was corroborated using the market approach. The inputs used to estimate fair value under the discounted cash flow method included financial projections and the discount rate. Because these fair value inputs are unobservable, fair value measurements of the investments in F-tuan are classified within Level 3 of the fair value hierarchy.

In connection with the acquisition-date fair value measurements of the investments in F-tuan, the Company obtained financial projections from the investee. The Company evaluated those financial projections based on its knowledge of the business and related market conditions. As a result of that evaluation, downward adjustments were applied to reduce the anticipated growth that was reflected in the original projections. A 25% discount rate was applied to the adjusted cash flow projections, which included an entity-specific risk premium to account for the riskiness and uncertainty inherent in the business. Additionally, the Company corroborated the acquisition-date fair value measurement of F-tuan by estimating the fair value of its 49.8% interest in E-Commerce at the time of the transaction and comparing the estimated fair value of the consideration transferred, including the additional $25.0 million of cash consideration, to the estimated fair value of the investments in F-tuan that were received.

In January 2013, the Company obtained updated financial projections from F-tuan, as well as their operating results for the year ended December 31, 2012. The investee's operating loss for the year-ended December 31, 2012 was lower than the loss that was forecasted in June 2012 at the time of the Company's investment, primarily due to lower-than-forecasted operating expenses. However, the investee's 2012 revenues were lower than the adjusted financial projections used at the time of the Company's investment and the updated financial projections provided by the investee at year-end indicated significant declines in forecasted revenues in future years, as compared to the adjusted financial projections used at the time of the Company's investment, due to reduced gross billings and deal margin forecasts. As of December 31, 2012, the Company continued to apply a discounted cash flow approach, corroborated by a market approach, to estimate the fair value of the investments in F-tuan. For the December 31, 2012 fair value measurements, the Company used the updated financial projections and a discount rate of 30%. The increase to the discount rate as compared to the acquisition-date fair value measurement was primarily attributable to an increase in the entity-specific risk premium to reflect the Company's assessment of the riskiness of this investment. The resulting fair value measurements of the investments in F-tuan totaled $77.5 million as of December 31, 2012, a $50.6 million reduction from the $128.1 million acquisition-date fair value measurement in June 2012.

The Company's evaluation of other-than-temporary impairments involves consideration of qualitative and quantitative factors regarding the severity and duration of the unrealized loss, as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Although the Company's investments in F-tuan had not been in an unrealized loss position for an extended period of time as of December 31, 2012 and there were no plans to dispose of the investments at that time, the Company concluded that the impairment was other-than-temporary due to the significant declines in forecasted revenue growth and the severity of the unrealized loss.

The $85.5 million and $50.6 million other-than-temporary impairments of its investments in F-tuan are reported within "Other expense, net" on the consolidated statements of operations for the years ended December 31, 2013 and 2012, respectively.

The Company also recorded an additional $1.2 million other-than-temporary impairment of an equity method investment in a nonpublic entity, which is reported within "Other expense, net" on the consolidated statement of operations for the year ended December 31, 2012.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Leases

The Company has entered into various non-cancelable lease agreements, primarily operating leases covering its offices throughout the world, with remaining lease periods expiring between 2015 and 2024. Rent expense under operating leases was $55.0 million, $42.3 million and $43.1 million for the years ended December 31, 2014, 2013 and 2012, respectively.

The Company has lease arrangements for its headquarters located in Chicago, Illinois ("600 West Leases"), which account for 14% of its estimated future payments under operating leases as of December 31, 2014. The 600 West Leases are accounted for as operating leases with rent expense being recognized on a straight-line basis over the term of the lease, taking into account rent escalations and lease incentives. Rent escalations are annual and do not exceed 9% per year with a majority of the increases being approximately 2% per year. The initial durations of the 600 West Leases range from five to seven years, with renewal and expansion options ranging from one to five years. The amortization period of leasehold improvements related to the 600 West Leases is five years.

The Company is responsible for paying its proportionate share of specified operating expenses and real estate taxes under certain of its lease agreements. These operating expenses are not included in the table below.

Certain of the Company's computer equipment has been acquired under capital lease agreements, and estimated future payments under these capital lease agreements is included in the table below. As of December 31, 2014, the estimated future payments under operating leases and capital leases for each of the next five years and thereafter is as follows (in thousands):

	Capital Leases			Operating leases
2015	$	14,936		$	53,776
2016	14,136			49,094
2017	9,424			38,628
2018	697			27,659
2019	522			11,455
Thereafter	—			21,514
Total minimum lease payments	39,715			$	202,126
Less: Amount representing interest	(1,456		)
Present value of net minimum capital lease payments	38,259
Less: Current portion of capital lease obligations	(14,872		)
Total long-term capital lease obligations	$	23,387

Purchase Obligations

The Company has entered into non-cancelable arrangements with third-parties, primarily related to information technology products and services. As of December 31, 2014, future payments under these contractual obligations were as follows (in thousands):

2015	$	33,636
2016	21,922
2017	5,730
2018	8
2019	4
Thereafter	—
Total purchase obligations	$	61,300

Legal Matters and Other Contingencies

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 by stockholders, former employees and merchants, intellectual property infringement suits and suits by customers (individually or as class actions) alleging, among other things, violation of the Credit Card Accountability, Responsibility and Disclosure Act and state laws governing gift cards, stored value cards and coupons. Additionally, the Company is subject to general customer complaints seeking monetary damages, particularly in its Rest of World segment. 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 and 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 class action 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 23, 2014, the court entered an order granting plaintiff's motion for class certification. The Company has filed a petition for leave to appeal that order in the United States Court of Appeals for the Seventh Circuit. The Seventh Circuit is holding that motion in order to allow the district court to first have the opportunity to address defendants' motion to exclude the opinions and testimony of the plaintiff's proposed market efficiency expert. On December 19, 2014, defendants filed their opening brief with respect to this motion.  On January 8, 2015, the plaintiff filed a response brief, to which the defendants filed a reply brief on January 20, 2015.

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 actions.  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 actions.  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 class. Following entry of the 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 into a single case in the U.S. District Court for the Southern District of California.  The consolidated case is 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.  Because the case had been filed as a class action, the parties were required to provide proper notice and obtain court approval for the settlement. During that process, certain individuals asserted various objections to the settlement.  The parties to the case opposed the objections and on December 14, 2012, the district court approved the settlement over the various objections.

Subsequent to the entry of the order approving settlement, certain of the objectors filed a notice of appeal, contesting the settlement and appealing the matter to the United States Court of Appeals for the Ninth Circuit, where the case remains pending.  The Company believes that the settlement is valid and intends to oppose the appeal.  Plaintiffs also maintain that the settlement is valid and will be opposing the appeal.  The settlement, however, is not effective during the pendency of the appeal.  The Company does not know when the appeal will be resolved.  Depending on the outcome of the appeal, it is possible that the settlement will be rejected, or that there will be further proceedings in the appellate court or district court, or that the settlement will be enforced at that time without further objections or proceedings.

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, 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 several of these claims are currently pending. 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.

During the fourth quarter of 2014, two foreign tax authorities issued assessments totaling $46.5 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 is 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.

Indemnifications

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 and directors, 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.

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Commitments and Contingencies Purchase Obligations (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Long-term Purchase Commitment [Line Items]
2015	$ 33,636
2016	21,922
2017	5,730
2018	8
2019	4
Thereafter	0
Total purchase obligations	$ 61,300

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Loss Per Share of Class A and Class B Common Stock Schedule of Equity Antidilutive Securities (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	45,678	45,956	38,261
Performance share units	2,000
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	2,776	5,594	7,713
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	42,341	39,619	29,699
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	53	298	577
Employee Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities, Amount	508	444	271

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Revolving Credit Agreement (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	250,000
Unrestricted cash covenant	400,000
Line of Credit Facility, Cash Institution Covenant	200,000
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	45,000
Minimum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.0025
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.20%
Maximum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.02
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.35%

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Commitments and Contingencies Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Capital Leased Assets [Line Items]
2015	$ 14,936
2016	14,136
2017	9,424
2018	697
2019	522
Thereafter	0
Total minimum lease payments	39,715
Less: Amount representing interest	(1,456)
Present value of net minimum capital lease payments	38,259
Less: Current portion of capital lease obligations	(14,872)	(3,636)
Total long-term capital lease obligations	$ 23,387	$ 5,665

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Segment Information Revenue by Segment and Category (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Primary Categories									3
Third party and other									$ 1,627,539		$ 1,654,654		$ 1,879,729
Direct									1,564,149		919,001		454,743
Total revenue	925,421	757,054	751,576	757,637	768,447	595,059	608,747	601,402	3,191,688		2,573,655		2,334,472
North America [Member]
Total revenue									1,824,461	[1]	1,521,358	[1]	1,165,700	[1]
EMEA [Member]
Total revenue									961,130		742,915		805,476
ROW [Member]
Total revenue									406,097		309,382		363,296
Local [Member]
Third party and other									1,233,336	[2]	1,283,876		1,389,228	[2]
Direct									0	[2]	1,772	[2]	12,037	[2]
Total revenue									1,233,336	[2]	1,285,648	[2]	1,401,265	[2]
Local [Member] | North America [Member]
Third party and other									674,605		671,846		665,587	[2]
Direct									0	[2]	1,772	[2]	12,037	[2]
Total revenue									674,605	[2]	673,618	[2]	677,624	[2]
Local [Member] | EMEA [Member]
Third party and other									391,179		430,020		501,782	[2]
Direct									0	[2]	0	[2]	0	[2]
Total revenue									391,179	[2]	430,020	[2]	501,782	[2]
Local [Member] | ROW [Member]
Third party and other									167,552	[2]	182,010	[2]	221,859	[2]
Direct									0	[2]	0	[2]	0	[2]
Total revenue									167,552	[2]	182,010	[2]	221,859	[2]
Goods [Member]
Third party and other									216,600		219,870		334,510
Direct									1,564,149		917,229		438,453
Total revenue									1,780,749		1,137,099		772,963
Goods [Member] | North America [Member]
Third party and other									5,966		17,409		60,269
Direct									1,074,913		774,023		391,239
Total revenue									1,080,879		791,432		451,508
Goods [Member] | EMEA [Member]
Third party and other									63,650		133,117		186,495
Direct									442,344		115,881		36,393
Total revenue									505,994		248,998		222,888
Goods [Member] | ROW [Member]
Third party and other									146,984		69,344		87,746
Direct									46,892		27,325		10,821
Total revenue									193,876		96,669		98,567
Travel [Member]
Third party and other													155,991
Direct													4,253
Total revenue									177,603		150,908		160,244
Travel [Member] | North America [Member]
Third party and other									68,977		56,308		36,568
Total revenue									68,977		56,308		36,568
Travel [Member] | EMEA [Member]
Third party and other									63,957		63,897		76,553
Direct													4,253
Total revenue									63,957		63,897		80,806
Travel [Member] | ROW [Member]
Third party and other									44,669		30,703		42,870
Total revenue									$ 44,669		$ 30,703		$ 42,870

[1] North America includes revenue from the United States of $1,784.6 million, $1,471.9 million and $1,108.4 million for the years ended December 31, 2014, 2013 and 2012 respectively. Beginning in September 2013, direct revenue transactions in the EMEA Goods category have been transacted through a Switzerland-based subsidiary. As a result, EMEA includes revenue from Switzerland of $468.7 million for the year ended December 31, 2014. There were no other individual countries that represented more than 10% of consolidated total revenue for the years ended December 31, 2014, 2013 or 2012.

[2] (1)Includes revenue from deals with local and national merchants and through local events.

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Commitments and Contingencies Operating Leases (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

As of December 31, 2014, the estimated future payments under operating leases and capital leases for each of the next five years and thereafter is as follows (in thousands):

	Capital Leases			Operating leases
2015	$	14,936		$	53,776
2016	14,136			49,094
2017	9,424			38,628
2018	697			27,659
2019	522			11,455
Thereafter	—			21,514
Total minimum lease payments	39,715			$	202,126
Less: Amount representing interest	(1,456		)
Present value of net minimum capital lease payments	38,259
Less: Current portion of capital lease obligations	(14,872		)
Total long-term capital lease obligations	$	23,387

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Business Combinations and Acquisitions of Noncontrolling Interests Business Acquisitions, Pro Forma Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Acquisition, Pro Forma Revenue	$ 2,763,639,000
Business Acquisition, Pro Forma Net Income (Loss)	(217,613,000)
Ticket Monster [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(45,400,000)
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	149,600,000
Ideeli [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	(12,300,000)
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 82,400,000

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Variable Interest Entity (Notes)

12 Months Ended

Dec. 31, 2014

Variable Interest Entity [Abstract]

Variable Interest Entity Disclosure

VARIABLE INTEREST ENTITY

The Company entered into a collaborative arrangement to create a jointly-owned sales category with a strategic partner ("Partner"), and a limited liability company ("LLC") was established in 2011. The Company and its Partner each owns 50% of the LLC, and income and cash flows of the LLC are allocated based on agreed upon percentages between the Company and the Partner. The liabilities of the LLC are solely the LLC's obligations and are not obligations of the Company or the Partner.

The Company's obligations associated with its interests in the LLC are primarily building, maintaining, customizing, managing and operating the website, contributing intellectual property, identifying deals and promoting the sale of deal vouchers, coordinating the fulfillment of deal vouchers in certain instances and providing the record keeping.

Under the LLC agreement, the LLC shall be dissolved upon the occurrence of any of the following events: (1) either party becoming a majority owner; (2) the third anniversary of the date of the LLC agreement; (3) certain elections of the Company or the Partner based on the operational and financial performance of the LLC or other changes to certain terms in the agreement; (4) election of either the Company or the Partner in the event of bankruptcy by the other party; (5) sale of the LLC; or (6) a court's dissolution of the LLC. The LLC agreement was subsequently amended to extend the contractual dissolution date to May 2016.

Variable interest entities ("VIEs") are entities that have either a total equity investment that is insufficient to permit the entity to finance its activities without additional subordinated financial support, or whose equity investors lack the characteristics of a controlling financial interest (i.e., the ability to make significant decisions through voting rights and the right to receive the expected residual returns of the entity or the obligation to absorb the expected losses of the entity). A variable interest holder that has both (a) the power to direct the activities of the VIE that most significantly impact its economic performance and (b) either an obligation to absorb losses or a right to receive benefits that could potentially be significant to the VIE is referred to as the primary beneficiary and must consolidate the VIE.

The Company has determined that the LLC is a VIE and the Company is its primary beneficiary. The Company consolidates the LLC because it has the power to direct the activities of the LLC that most significantly impact the LLC's economic performance. In particular, the Company identifies and promotes the deal vouchers, provides all of the back office support (i.e. website, contracts, personnel resources, accounting, etc.), presents the LLC's deal offerings via the Company's website, mobile application and email and provides the editorial resources that create the verbiage included on the website with the LLC's deal offers.

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Quarterly Results (Notes)

12 Months Ended

Dec. 31, 2014

Quarterly Results [Abstract]

Quarterly Financial Information [Text Block]

QUARTERLY RESULTS (UNAUDITED)

The following table represents data from the Company's unaudited consolidated statements of operations for the most recent eight quarters. This quarterly information has been prepared on the same basis as the consolidated financial statements and includes all normal recurring adjustments necessary to fairly state the information for the periods presented. The results of operations of any quarter are not necessarily indicative of the results that may be expected for any future period (in thousands, except per share amounts).

	Quarter Ended
	Dec. 31,		Sept. 30,			June 30,			Mar. 31,			Dec. 31,			Sept. 30,			June 30,			Mar. 31,
	2014		2014			2014			2014			2013			2013			2013			2013
Consolidated Statements of Operations Data:
Revenue	$	925,421	$	757,054		$	751,576		$	757,637		$	768,447		$	595,059		$	608,747		$	601,402
Cost of revenue	531,962		376,910			361,714			371,916			390,239			235,437			224,053			222,393
Gross profit	393,459		380,144			389,862			385,721			378,208			359,622			384,694			379,009
Income (loss) from operations	18,394		(5,429		)	(7,854		)	(19,953		)	13,352			13,812			27,412			21,178
Net income (loss) (1)	11,384		(19,018		)	(20,922		)	(35,363		)	(78,861		)	(1,292		)	(5,551		)	(3,242		)
Net income (loss) attributable to Groupon, Inc. (1)	8,788		(21,208		)	(22,875		)	(37,795		)	(81,247		)	(2,580		)	(7,574		)	(3,992		)
Net earnings (loss) per share
Basic	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Diluted	$0.01		$(0.03)			$(0.03)			$(0.06)			$(0.12)			$(0.00)			$(0.01)			$(0.01)
Weighted average number of shares outstanding
Basic	671,885,967		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417
Diluted	681,543,847		669,526,524			675,538,392			682,378,690			668,046,073			666,432,848			662,361,436			658,800,417

(1) Net loss and net loss attributable to Groupon, Inc. for the quarter ended December 31, 2013 included an impairment of the Company's investment in F-tuan of $85.5 million ($77.8 million, net of tax). See Note 6 "Investments."

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Quarterly Results (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Results [Abstract]
Revenues	$ 925,421	$ 757,054	$ 751,576	$ 757,637	$ 768,447		$ 595,059	$ 608,747	$ 601,402	$ 3,191,688	$ 2,573,655	$ 2,334,472
Cost of revenue	531,962	376,910	361,714	371,916	390,239		235,437	224,053	222,393	1,642,502	1,072,122	718,940
Gross profit	393,459	380,144	389,862	385,721	378,208		359,622	384,694	379,009	1,549,186	1,501,533	1,615,532
Income (loss) from operations	18,394	(5,429)	(7,854)	(19,953)	13,352		13,812	27,412	21,178	(14,842)	75,754	98,701
Net income (loss)	11,384	(19,018)	(20,922)	(35,363)	(78,861)	[1]	(1,292)	(5,551)	(3,242)	(73,090)	(95,393)	(67,377)
Net income (loss) attributable to Groupon, Inc.	8,788	(21,208)	(22,875)	(37,795)	(81,247)	[1]	(2,580)	(7,574)	(3,992)	(73,090)	(95,393)	(54,773)
Basic, net (loss) earnings per share	$ 0.01	$ (0.03)	$ (0.03)	$ (0.06)	$ (0.12)		$ 0.00	$ (0.01)	$ (0.01)	$ (0.11)	$ (0.14)	$ (0.10)
Diluted, net (loss) earnings per share	$ 0.01	$ (0.03)	$ (0.03)	$ (0.06)	$ (0.12)		$ 0.00	$ (0.01)	$ (0.01)	$ (0.11)	$ (0.14)	$ (0.10)
Basic, weighted average number of shares outstanding	671,885,967	669,526,524	675,538,392	682,378,690	668,046,073		666,432,848	662,361,436	658,800,417	674,832,393	663,910,194	650,214,119
Diluted, weighted average number of shares outstanding	681,543,847	669,526,524	675,538,392	682,378,690	668,046,073		666,432,848	662,361,436	658,800,417	674,832,393	663,910,194	650,214,119
Effect of Fourth Quarter Events [Line Items]
Other than Temporary Impairment Losses, Investments					85,500					2,036	85,925	50,553
Impairment of investments					$ 77,800					$ 2,036	$ 85,925	$ 50,553

[1] (1)Net loss and net loss attributable to Groupon, Inc. for the quarter ended December 31, 2013 included an impairment of the Company's investment in F-tuan of $85.5 million ($77.8 million, net of tax). See Note 6 "Investments."

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Summary of Significant Accounting Policies Foreign Currency (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Foreign Currency [Abstract]
Foreign exchange (losses) gains, net	$ 31,526	$ 10,271	$ (1,403)

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

FAIR VALUE MEASUREMENTS [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

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	December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
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 Measurement at Reporting Date Using
Description	December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	585,514	$	585,514	$	—	$	—
Available-for-sale securities:
Convertible debt securities	3,174		—		—		3,174
Redeemable preferred shares	—		—		—		—
Liabilities:
Contingent consideration	606		—		—		606

Fair Value, Assets and Liabilities, Reconciliation of Level 3 Inputs [Table Text Block]

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2013		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	585,514	$	585,514	$	—	$	—
Available-for-sale securities:
Convertible debt securities	3,174		—		—		3,174
Redeemable preferred shares	—		—		—		—
Liabilities:
Contingent consideration	606		—		—		606

The following table provides a roll-forward of the fair value of recurring Level 3 fair value measurements for the years endedDecember 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Assets
Available-for-sale securities
Convertible debt securities:
Beginning Balance	$	3,174		$	3,087		$	—
Purchases of convertible debt securities	—			370			3,000
Total gains (losses) included in other comprehensive income	693			(283		)	87
Total gains (losses) included in other expense, net	(1,340		)	—			—
Ending Balance	$	2,527		$	3,174		$	3,087
Unrealized (losses) gains still held(1)	$	(647	)	$	(283	)	$	87
Redeemable preferred shares:
Beginning Balance	$	—		$	42,539		$	—
Acquisitions of preferred shares in exchange transactions (See note 6)	—			34,982			56,940
Purchase of redeemable preferred shares	4,599			8,000			—
Total gains included in other comprehensive income	311			—			—
Other-than-temporary impairments included in earnings	—			(85,521		)	(14,401		)
Ending Balance	$	4,910		$	—		$	42,539
Unrealized (losses) gains still held(1)	$	311		$	(85,521	)	$	(14,401	)
Liabilities
Contingent Consideration:
Beginning Balance	$	606		$	7,601		$	11,230
Issuance of contingent consideration in connection with acquisitions	4,388			3,567			3,400
Settlements of contingent consideration liabilities	(424		)	(4,377		)	(4,936		)
Reclass to non-fair value liabilities when no longer contingent	(143		)	(3,014		)	(4,978		)
Total (gains) losses included in earnings(2)	(2,444		)	(3,171		)	897
Reclass of contingent consideration from Level 2 to Level 3	—			—			1,988
Ending Balance	$	1,983		$	606		$	7,601
Unrealized (gains) losses still held(1)	$	(2,405	)	$	360		$	211

(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 consolidated statements of operations.

Fair Value Measurements, Nonrecurring [Table Text Block]

The following table summarizes the Company's assets that were measured at fair value on a nonrecurring basis as of December 31, 2012 (in thousands):

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2012		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Asset impairments:
Cost method investment in Life Media Limited (F-tuan) common shares	$	34,982	$	—	$	—	$	34,982
Equity method investment	$	495	$	—	$	—	$	495

Fair Value of Financial Assets and Liabilities not Measured at Fair Value [Table Text Block]

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):

	December 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cost method investments	$	15,630	$	16,134	$	15,788	$	15,573

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Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net loss	$ (63,919)	$ (88,946)	$ (51,031)
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	11,625	12,933	425
Pension liability adjustment	(1,500)	0	0
Net unrealized (loss) gain during the period	(210)	(175)	53
Reclassification adjustment for impairment included in net loss	831	0	0
Net change in unrealized gain (loss), net	621	(175)	53
Other comprehensive income	10,746	12,758	478
Comprehensive loss	(53,173)	(76,188)	(50,553)
Comprehensive income attributable to noncontrolling interests	(8,984)	(6,821)	(4,702)
Comprehensive loss attributable to Groupon Inc.	$ (62,157)	$ (83,009)	$ (55,255)

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Segment Information Tangible property and equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Segment Reporting Information [Line Items]
Tangible property and equipment	103,803,000		$ 75,639,000
North America [Member]
Segment Reporting Information [Line Items]
Tangible property and equipment	63,915,000	[1]	43,126,000	[1]
EMEA [Member]
Segment Reporting Information [Line Items]
Tangible property and equipment	28,721,000		23,413,000
ROW [Member]
Segment Reporting Information [Line Items]
Tangible property and equipment	11,167,000	[2]	9,100,000	[2]
Property, Plant and Equipment [Member]
Segment Reporting Information [Line Items]
Concentration of risk, percentage	10.00%
IRELAND
Segment Reporting Information [Line Items]
Tangible property and equipment	0.12
Switzerland
Segment Reporting Information [Line Items]
Tangible property and equipment	0.11

[1] Substantially all tangible property and equipment within North America is located in the United States.

[2] Tangible property and equipment, net located within Ireland represented approximately 12% of the Company's consolidated tangible property and equipment, net as of December 31, 2014. Tangible property and equipment, net located within Switzerland represented approximately 11% of the Company's consolidated tangible property and equipment, net as of December 31, 2013. There were no other individual countries located outside of the United States that represented more than 10% of consolidated tangible property and equipment, net as of December 31, 2014 and 2013.

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Summary of Significant Accounting Policies (Notes)

12 Months Ended

Dec. 31, 2014

Summary of Significant Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The 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 consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles ("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 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 either the equity method, the cost method or as available-for-sale securities, as appropriate.

Reclassifications

Certain reclassifications have been made to the consolidated financial statements of prior years and the accompanying notes to conform to the current year presentation.

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, revenue and expenses, and the related disclosures of contingent liabilities in the consolidated financial statements and accompanying notes. Estimates are 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.

Cash and Cash Equivalents

The Company considers all highly‑liquid investments with an original maturity of three months or less from the date of purchase to be cash equivalents. The Company's cash equivalents primarily include holdings in money market funds and overnight securities.

Accounts Receivable, Net

Accounts receivable primarily represents the net cash due from the Company's credit card and other payment processors for cleared transactions. The carrying amount of the Company's receivables is reduced by an allowance for doubtful accounts that reflects management's best estimate of amounts that will not be collected. The allowance is based on historical loss experience and any specific risks identified in collection matters. Accounts receivable are charged off against the allowance for doubtful accounts when it is determined that the receivable is uncollectible. The Company's allowance for doubtful accounts as of December 31, 2014 and 2013 was $2.2 million and $0.7 million, respectively. Bad debt expense for the years ended December 31, 2014, 2013 and 2012 was $2.3 million, $0.7 million and $0.6 million, respectively.

Inventories

 Inventories, consisting of merchandise purchased for resale, are accounted for using the first-in-first-out ("FIFO") method of accounting and are valued at the lower of cost or market value. The Company writes down its inventory for estimated obsolescence and to the lower of cost or market value based upon assumptions about future demand and market conditions. If actual market conditions are less favorable than those projected by management, additional inventory write-downs may be required. Once established, the original cost of the inventory less the related inventory allowance represents a new cost basis.

Restricted Cash

The Company had $12.0 million and $5.2 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2014. The Company had $14.6 million and $0.4 million of restricted cash recorded within "Prepaid expenses and other current assets" and "Other non-currents assets," respectively, as of December 31, 2013. Restricted cash primarily represents amounts that the Company is unable to access for operational purposes pursuant to contractual arrangements with certain financial institutions and with entities that process merchant payments on the Company's behalf.

Internal-Use Software

The Company incurs costs related to internal-use software and website development, including purchased software and internally-developed software. Costs incurred in the planning and evaluation stage of internally-developed software and website development are expensed as incurred. Costs incurred and accumulated during the application development stage are capitalized and included within "Property, equipment and software, net" on the consolidated balance sheets. Capitalized internally-developed software and website development costs are amortized over their expected economic life of two years using the straight-line method.

Goodwill

Goodwill is allocated to the Company's reporting units at the date the goodwill is initially recorded. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill.

The Company evaluates goodwill for impairment annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company has the option to assess goodwill for impairment by first performing a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount. If the Company determines that it is not more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, then further goodwill impairment testing is not required to be performed. If the Company determines that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount, or if the Company does not elect the option to perform an initial qualitative assessment, the Company is required to perform a two-step goodwill impairment test. In the first step, the fair value of the reporting unit is compared to its book value including goodwill. If the fair value of the reporting unit is in excess of its book value, the related goodwill is not impaired and no further analysis is necessary. If the fair value of the reporting unit is less than its book value, there is an indication of potential impairment and a second step is performed. When required, the second step of testing involves calculating the implied fair value of goodwill for the reporting unit. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets and identifiable intangible assets as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. For reporting units with a negative book value (i.e., excess of liabilities over assets), qualitative factors are evaluated to determine whether it is necessary to perform the second step of the goodwill impairment test.

Impairment of Long-Lived Assets

Long‑lived assets, such as property, equipment and software and intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. If circumstances require that a long‑lived asset or asset group be tested for possible impairment, the Company first compares the undiscounted cash flows expected to be generated by that long-lived asset or asset group to its carrying amount. If the carrying amount of the long‑lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment is recognized to the extent that the carrying amount exceeds its fair value.

Investments

Investments in nonmarketable equity shares with no redemption provisions that are not common stock or in-substance common stock or for which the Company does not have the ability to exercise significant influence are accounted for using the cost method of accounting and classified within "Investments" on the consolidated balance sheets. Under the cost method of accounting, investments are carried at cost and are adjusted only for other-than-temporary declines in fair value, certain distributions and additional investments.

Investments in common stock or in-substance common stock for which the Company has the ability to exercise significant influence are accounted for under the equity method and classified within "Investments" on the consolidated balance sheets. The Company's proportionate share of income or loss on equity method investments is presented within "Other expense, net" on the consolidated statements of operations.

The Company has investments in convertible debt securities and convertible redeemable preferred shares issued by nonpublic entities and has categorized these investments as available-for-sale securities, which are classified within "Investments" on the consolidated balance sheets. Available-for-sale securities are recorded at fair value each reporting period. Unrealized gains and losses, net of the related tax effects, are excluded from earnings and recorded as a separate component within "Accumulated other comprehensive income" on the consolidated balance sheets until realized. Interest income is reported within "Other expense, net" on the consolidated statements of operations.

Other-than-Temporary Impairment of Investments

An unrealized loss exists when the current fair value of an investment is less than its amortized cost basis. The Company conducts reviews of its investments with unrealized losses on a quarterly basis to evaluate whether those impairments are other-than-temporary. This evaluation, which is performed at the individual investment level, consists of several qualitative and quantitative factors regarding the severity and duration of the unrealized loss as well as the Company's intent and ability to hold the investment for a period of time that is sufficient to allow for an anticipated recovery in value. Evidence considered in this evaluation includes the amount of the impairment, the length of time that the investment has been impaired, the factors contributing to the impairment, the financial condition and near-term prospects of the investee, recent operating trends and forecasted performance of the investee, market conditions in the geographic area or industry in which the investee operates, and the Company's strategic plans for holding the investment in relation to the period of time expected for an anticipated recovery in value. Additionally, the Company considers whether it intends to sell the investment or whether it is more-likely-than-not that the Company will be required to sell the investment before recovery of the amortized cost basis. Investments with unrealized losses that are determined to be other-than-temporary are written down to fair value with a charge to earnings. Unrealized losses that are determined to be temporary in nature are not recorded for cost method investments and equity method investments, while such losses are recorded, net of tax, in accumulated other comprehensive income for available-for-sale securities.

Income Taxes

The provision for income taxes is determined using the asset and liability method. Under this method, deferred tax assets and liabilities are calculated based upon the temporary differences between the financial statement and income tax bases of assets and liabilities using the enacted tax rates that are applicable in a given year. The deferred tax assets are recorded net of a valuation allowance when, based on the weight of available evidence, the Company believes it is more-likely-than-not that some portion or all of the recorded deferred tax assets will not be realized in future periods. The Company considers many factors when assessing the likelihood of future realization of its deferred tax assets, including recent cumulative earnings experience, expectations of future taxable income and capital gains by taxing jurisdiction, the carry‑forward periods available for tax reporting purposes, the ability to carryback losses and other relevant factors. The Company allocates its valuation allowance to current and non-current deferred tax assets on a pro-rata basis. A change in the estimate of future taxable income may require an increase or decrease to the valuation allowance.

The Company utilizes a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more-likely-than-not that the position will be sustained on audit, including resolution of related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount which is more than 50% likely of being realized upon ultimate settlement. The Company includes interest and penalties related to uncertain tax positions within "Provision for income taxes" on the consolidated statements of operations. See Note 12 "Income Taxes."

Lease and Asset Retirement Obligations

The Company categorizes leases at their inception as either operating or capital leases and may receive renewal or expansion options, rent holidays, and leasehold improvement and other incentives on certain lease agreements. The Company recognizes lease costs on a straight-line basis, taking into account adjustments for free or escalating rental payments and deferred payment terms. Additionally, lease incentives are accounted for as a reduction of lease costs over the term of the agreement. Leasehold improvements are capitalized at cost and amortized over the shorter of their useful life or the non-cancellable term of the lease. The Company records rent expense associated with operating lease obligations primarily within "Selling, general and administrative" on the consolidated statements of operations.

The Company establishes assets and liabilities for the present value of estimated future costs to retire long-lived assets at the termination or expiration of a lease. Such assets are amortized over the lease term, and the recorded liabilities are accreted to the future value of the estimated retirement costs. The related amortization and accretion expenses are presented within "Selling, general and administrative" on the consolidated statements of operations.

Revenue Recognition

The Company recognizes revenue when the following criteria are met: persuasive evidence of an arrangement exists; delivery has occurred; the selling price is fixed or determinable; and collection is reasonably assured.

Third party revenue recognition

The Company generates third party revenue, where it acts as a third party marketing agent, by offering goods and services provided by third party merchants at a discount through its online local commerce marketplaces that connect merchants to consumers. The Company's marketplaces include deals offered through a variety of categories including: Local, Goods and Travel. Customers purchase the discount vouchers ("Groupons") from the Company and redeem them with the Company's merchants.

The revenue recognition criteria are met when the customer purchases a deal, the Groupon has been electronically delivered to the purchaser and a listing of Groupons sold has been made available to the merchant. At that time, the Company's obligations to the merchant, for which it is serving as a marketing agent, are substantially complete. The Company's remaining obligations, which are limited to remitting payment to the merchant and continuing to make available on the Company's website information about Groupons sold that was previously provided to the merchant, are inconsequential or perfunctory. For a portion of the hotel deals offered through the Company's online local marketplaces, the Company facilitates the booking of rooms by taking reservations through its websites. Such reservations are generally cancelable at any time prior to check-in and the Company defers the revenue on those deals until the customer's stay occurs.

.    The Company records as revenue the net amount it retains from the sale of Groupons after deducting the portion of the purchase price that is payable to the featured merchant, excluding applicable taxes and net of estimated refunds for which the merchant's share is recoverable. Revenue is presented on a net basis because the Company is acting as a marketing agent of the merchant in the transaction.

For merchant payment arrangements that are structured under a redemption model, merchants are not paid until the customer redeems the Groupon that has been purchased. If a customer does not redeem the Groupon under this payment model, the Company retains all the gross billings. The Company recognizes incremental revenue from unredeemed Groupons and derecognizes the related accrued merchant payable when its legal obligation to the merchant expires, which the Company believes is shortly after deal expiration in most jurisdictions that have payment arrangements structured under a redemption model.     

Direct revenue recognition

The Company evaluates whether it is appropriate to record the gross amount of its sales and related costs by considering a number of factors, including, among other things, whether the Company is the primary obligor under the arrangement, has inventory risk and has latitude in establishing prices. Direct revenue is derived primarily from selling consumer products through the Company's Goods category where the Company is the merchant of record. The Company is the primary obligor in these transactions, is subject to general inventory risk and has latitude in establishing prices. Accordingly, direct revenue is presented on a gross basis, excluding applicable taxes and net of estimated refunds. Direct revenue, including associated shipping revenue, is recognized when title passes to the customer upon delivery of the product.

Other revenue recognition

Advertising revenue is recognized when the advertiser's logo or website link has been included on the Company's websites or in specified email distributions for the requisite period of time as set forth in the agreement with the advertiser. Commission revenue is earned when customers make purchases with retailers using coupons accessed through the Company's websites and mobile applications. Revenue from payment processing is earned on a per transaction basis. The Company recognizes revenue from those activities when the underlying transactions are completed. Revenue from point of sale solutions is recognized on a subscription basis over the term of the arrangement with the merchant.

Discounts

The Company provides discount offers to encourage purchases of goods and services through its marketplaces. The Company records discounts as a reduction of revenue.

Cost of revenue

Cost of revenue is comprised of direct and certain indirect costs incurred to generate revenue. For direct revenue transactions, cost of revenue includes the cost of inventory, shipping and fulfillment costs and inventory markdowns. Fulfillment costs are comprised of third party logistics provider costs, as well as rent, depreciation, personnel costs and other costs of operating the Company's fulfillment center, which began operations in the fourth quarter of 2013. For third party revenue transactions, cost of revenue includes estimated refunds for which the merchant's share is not recoverable. Other costs incurred to generate revenue, which include credit card processing fees, editorial costs, certain technology costs, web hosting and other processing fees, are allocated to cost of third party revenue, direct revenue and other revenue in proportion to gross billings during the period.

Technology costs within cost of revenue consist of a portion of the payroll and stock‑based compensation expense related to the Company's technology support personnel who are responsible for operating and maintaining the infrastructure of the Company's websites. Technology costs also include a portion of amortization expense from internal-use software, primarily related to website development. Remaining technology costs within cost of revenue include email distribution costs. Editorial costs included in cost of revenue consist of payroll and stock‑based compensation expense related to the Company's editorial personnel, as these staff members are primarily dedicated to drafting and promoting deals.

Refunds

The Company estimates future refunds utilizing a statistical model that incorporates the following data inputs and factors: historical refund experience developed from millions of deals featured on the Company's websites and mobile applications, the relative risk of refunds based on expiration date, deal value, deal category and other qualitative factors that could impact the level of future refunds, such as introductions of new deals, discontinuations of legacy deals and expected changes, if any, in Company practices in response to refund experience or economic trends that might impact customer demand. The portion of customer refunds for which the merchant's share is not recoverable on third party revenue deals is estimated based on the refunds that are expected to be issued after expiration of the related vouchers, the refunds that are expected to be issued due to the merchant bankruptcy or poor customer experience, and whether the payment terms of the related merchant contracts are structured using a redemption payment model or a fixed payment model.

The Company accrues costs associated with refunds within "Accrued expenses" on the consolidated balance sheets. The cost of refunds for third party revenue where the amounts payable to the merchant are recoverable and for all direct revenue is presented on the consolidated statements of operations as a reduction to revenue. The cost of refunds for third party revenue for which the merchant's share is not recoverable is presented as a cost of revenue.

The Company assesses the trends that could affect its estimates on an ongoing basis and makes adjustments to the refund reserve calculations if it appears that changes in circumstances, including changes to the Company's refund policies, may cause future refunds to differ from its original estimates. If actual results are not consistent with the estimates or assumptions stated above, the Company may need to change its future estimates, and the effects could be material to the consolidated financial statements.

Customer Credits

The Company issues credits to its customers that can be applied against future purchases through its online marketplaces for certain qualifying acts, such as referring new customers, and also to satisfy refund requests. The Company has recorded its customer credit obligations within "Accrued expenses" on the consolidated balance sheets (See Note 7 "Supplemental Consolidated Balance Sheet and Statements of Operations Information"). Customer credit obligations incurred for new customer referrals or other qualifying acts are expensed as incurred and are classified within "Marketing" on the consolidated statements of operations. Customer credits issued to satisfy refund requests are applied as a reduction to the refunds reserve.

Stock‑Based Compensation

The Company measures stock‑based compensation cost at fair value, net of estimated forfeitures. Expense is generally recognized on a straight-line basis over the service period during which awards are expected to vest, except for awards with performance conditions, which are recognized using the accelerated method. The Company includes stock-based compensation expense within "Cost of revenue," "Marketing" and "Selling, general and administrative," consistent with the respective employees' cash compensation, on the consolidated statements of operations. See Note 11 "Compensation Arrangements."

Foreign Currency

Balance sheet accounts of the Company's operations outside of the U.S. are translated from foreign currencies into U.S. dollars at the exchange rates as of the consolidated balance sheet dates. Revenue and expenses are translated at average exchange rates during the period. Foreign currency translation adjustments and foreign currency gains and losses on intercompany balances that are of a long-term investment nature are included within "Accumulated other comprehensive income" on the consolidated balance sheets. Foreign currency gains and losses resulting from transactions which are denominated in currencies other than the entity's functional currency, including foreign currency gains and losses on intercompany balances that are not of a long-term investment nature, are included within "Other expense, net" on the consolidated statements of operations. For the years ended December 31, 2014, 2013 and 2012, the Company had $31.5 million of foreign currency transaction losses, $10.3 million of foreign currency transaction losses and $1.4 million of foreign currency transaction gains, respectively.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers. This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. The ASU is effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. The Company is still assessing the impact of adoption on its consolidated financial statements.

There are no additional accounting standards that have been issued but not yet adopted that the Company believes will have a material impact on its consolidated financial position or results of operations.

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Investments Available-for-sale Securities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 6,629	$ 3,370
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	808	(196)
Available-for-sale securities	7,437	3,174
Convertible debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,030	3,370
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	497	(196)
Available-for-sale securities	2,527	3,174
Redeemable preferred shares [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	4,599	0
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	311	0
Available-for-sale securities	$ 4,910	$ 0

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Fair Value Measurements Fair Value Measurements Measured at Fair Value (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments	$ 15,630	$ 15,788		$ 128,100
Equity method investments	1,231	1,690	495
Cost Method Investments, Fair Value Disclosure	16,134	15,573
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investments			495
F-Tuan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments			34,982
F-Tuan [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost method investments			$ 34,982

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Compensation Arrangements Compensation Arrangement Stock Plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Shares Authorized	50,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	44,043,631
Stock-based compensation	$ 122,019	$ 121,462	$ 104,117
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount	11,244	9,100	9,700
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 221,700
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 3 months 18 days
Employee Stock Purchase Plan, shares authorized	10,000,000
Employee Stock Purchase Plan, issued shares	857,171	774,288
2008 Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares Authorized	64,618,500
2010 Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares Authorized	20,000,000
2011 Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares Authorized	50,000,000

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Schedule II - Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Financial Statement Schedules

Schedule II-Valuation and Qualifying Accounts

	Balance at Beginning of Year		Charged to Expense		Acquisitions and Other			Balance at End of Year
	(in thousands)
TAX VALUATION ALLOWANCE:
Year ended December 31, 2014	$	173,577	$	23,515	$	8,394		$	205,486
Year ended December 31, 2013	159,249		24,404		(10,076		)	173,577
Year ended December 31, 2012	128,215		27,751		3,283			159,249

All other schedules have been omitted because they are either inapplicable or the required information has been provided in the consolidated financial statements or in the notes thereto.

(3) Exhibits (i)  See the Exhibit Index immediately following the signature page of this Annual Report on Form 10-K.

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Compensation Arrangements Compensation Arrangement Subsidiary Awards (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid	$ 17.0
Shares issued to settle liability-classified awards, shares	660,539
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years 0 months 0 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years 0 months 0 days

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Compensation Arrangements Compensation Arrangements Performance Share Units (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

The table below summarizes activity regarding unvested performance share units for the year ended December 31, 2014:    

	Performance Share Units		Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013	—		$	—
Granted	1,983,232		$	8.07
Vested	—		$	—
Forfeited	(967,388	)	$	8.07
Unvested at December 31, 2014	1,015,844		$	8.07

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Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

INCOME TAXES

The components of pretax (loss) income for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
United States	$	(20,057	)	$	62,021		$	88,638
International	(28,138		)	(80,930		)	6,304
(Loss) income before provision for income taxes	$	(48,195	)	$	(18,909	)	$	94,942

The provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 consisted of the following components (in thousands):

	Year Ended December 31,
	2014			2013			2012
Current taxes:
U.S. federal	$	(3,518	)	$	22,321		$	41,551
State	69			1,693			4,778
International	30,279			64,078			107,295
Total current taxes	26,830			88,092			153,624
Deferred taxes:
U.S. federal	(5,132		)	4,675			(2,977		)
State	(742		)	(5,687		)	(236		)
International	(5,232		)	(17,043		)	(4,438		)
Total deferred taxes	(11,106		)	(18,055		)	(7,651		)
Provision for income taxes	$	15,724		$	70,037		$	145,973

The items accounting for differences between the income tax provision or benefit computed at the federal statutory rate and the provision for income taxes for the years endedDecember 31, 2014, 2013 and 2012 were as follows:

	Year Ended December 31,
	2014			2013			2012
U.S. federal income tax (benefit) provision at statutory rate	$	(16,868	)	$	(6,618	)	$	33,230
Foreign income and losses taxed at different rates	4,815			14,299			10,565
Unrecognized tax benefits on E-Commerce transaction	—			—			17,404
State income taxes, net of federal benefits and state tax credits	(10,051		)	(5,361		)	3,965
Change in valuation allowances	23,515			24,404			29,249
Effect of foreign and state rate changes on deferred items	178			837			(487		)
Tax effects of intercompany transactions(1)	13,098			35,158			31,011
Non-deductible stock-based compensation expense	6,503			9,000			14,641
Federal research and development credits	(4,693		)	(4,650		)	—
Non-deductible or non-taxable items	(773		)	2,968			6,395
Provision for income taxes	$	15,724		$	70,037		$	145,973

(1) Includes a tax benefit of $24.4 million for the year ended December 31, 2014 resulting from decreases in the Company's liabilities for uncertain tax positions.

The deferred income tax assets and liabilities consisted of the following components as of December 31, 2014 and 2013 (in thousands):

	December 31,
	2014			2013
Deferred tax assets:
Reserves and allowances	$	32,379		$	65,356
Stock-based compensation	6,911			13,462
Net operating loss and tax credit carryforwards	221,674			152,271
Intangible assets, net	11,910			30,039
Investments	1,441			3,730
Unrealized foreign exchange losses	5,011			—
Other	2,610			1,692
Total deferred tax assets	281,936			266,550
Less valuation allowances	(205,486		)	(173,577		)
Deferred tax assets, net of valuation allowance	76,450			92,973
Deferred tax liabilities:
Unrealized foreign exchange gains	—			(3,034		)
Prepaid expenses and other assets	(1,455		)	(1,078		)
Property, equipment and software, net	(25,159		)	(19,239		)
Deferred revenue	(25,013		)	(64,154		)
Total deferred tax liabilities	(51,627		)	(87,505		)
Net deferred tax asset	$	24,823		$	5,468

The Company regularly reviews deferred tax assets to assess whether it is more likely than not that the deferred tax assets will be realized and, if necessary, establishes a valuation allowance for portions of such assets to reduce the carrying value. For purposes of assessing whether it is more likely than not that the Company's deferred tax assets will be realized, the Company considers the following four sources of taxable income for each tax jurisdiction: (a) future reversals of existing taxable temporary differences, (b) projected future earnings, (c) taxable income in carryback years, to the extent that carrybacks are permitted under the tax laws of the applicable jurisdiction, and (d) tax planning strategies, which represent prudent and feasible actions that a company ordinarily might not take, but would take to prevent an operating loss or tax credit carryforward from expiring unused. The Company has incurred significant losses in recent years and had accumulated deficits of $922.0 million and $848.9 million as of December 31, 2014 and 2013, respectively. A cumulative loss in the most recent three-year period is a significant piece of negative evidence that is difficult to overcome when assessing the realizability of deferred tax assets. The Company has only recognized deferred tax assets to the extent that they will be realizable either through future reversals of existing taxable temporary differences, through taxable income in carryback years for the applicable jurisdictions or based on projections of future income for those jurisdictions in a cumulative income position for the most recent three-year period. During the fourth quarter of 2013, earnings in the United States moved to a cumulative income position for the most recent three-year period and the Company released a portion of the valuation allowance against its federal and state deferred tax assets, resulting in a $9.6 million reduction to income tax expense. The Company continues to maintain a valuation allowance in the United States against a portion of its acquired domestic federal net operating losses that are subject to limitations under the tax law and state net operating loss carryforwards and tax credits that are not expected to be realized. As of December 31, 2014 and 2013, the Company recorded a valuation allowance of $205.5 million and $173.6 million, respectively, against its domestic and foreign net deferred tax assets, as it believes it is more likely than not that these benefits will not be realized.

The Company had $121.2 million of federal and $270.5 million of state net operating loss carryforwards as of December 31, 2014 which will begin expiring in 2027 and 2016, respectively. As of December 31, 2014, the Company had $714.9 million of foreign net operating loss carryforwards, a significant portion of which carry forward for an indefinite period.

The Company is subject to taxation in the United States, state jurisdictions and foreign jurisdictions. Significant judgment is required in determining the worldwide provision for income taxes and recording the related income tax assets and liabilities. The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not criterion, the amount recognized in the financial statements is the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate settlement with the relevant tax authority.

The following table summarizes activity related to the Company's gross unrecognized tax benefits, excluding interest and penalties, from January 1 to December 31, 2014, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2014			2013			2012
Beginning Balance	$	110,305		$	85,481		$	55,127
Increases related to prior year tax positions	5,489			10,494			602
Decreases related to prior year tax positions	(27,875		)	(2,103		)	(790		)
Increases related to current year tax positions	17,348			14,565			29,465
Foreign currency translation	(6,946		)	1,868			1,077
Ending Balance	$	98,321		$	110,305		$	85,481

The total amount of unrecognized tax benefits as of December 31, 2014, 2013 and 2012 that, if recognized, would affect the effective tax rate are $72.3 million, $80.0 million, and $39.3 million, respectively.

The Company recognized $1.1 million, $3.3 million and $2.3 million of interest and penalties within "Provision for income taxes" on its consolidated statements of operations for the years ended December 31, 2014, 2013 and 2012, respectively. Total accrued interest and penalties as of December 31, 2014 and 2013 was $5.7 million and $5.3 million, respectively, and were included in "Other non-current liabilities."

The Company is currently under IRS audit for the 2011 and 2012 tax years. Additionally, the Company is currently under audit by several foreign jurisdictions. It is likely that the examination phase of some of these audits will conclude in the next 12 months. The tax years 2009 to 2013 remain open to examination by the major taxing jurisdictions in which the Company is subject to tax. For the year ended December 31, 2014, the Company decreased its liabilities for uncertain tax positions and income tax expense by $21.0 million and $16.7 million, respectively, due to the expiration of the applicable statute of limitations in a foreign jurisdiction. For the year ended December 31, 2014, the Company also decreased its liabilities for uncertain tax positions and income tax expense by $7.7 million as a result of new information that impacted its estimate of the amount that is more-likely-than-not of being realized upon ultimate settlement of a tax position. As of December 31, 2014, the Company believes that it is reasonably possible that additional changes of up to $15.6 million in unrecognized tax benefits may occur within the next 12 months.

In general, it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. As of December 31, 2014, no provision has been made for U.S. income taxes and foreign withholding taxes related to the undistributed earnings of the Company's foreign subsidiaries of approximately $271.1 million, because those undistributed earnings are indefinitely reinvested outside the United States. The actual U.S. tax cost would depend on income tax laws and circumstances at the time of distribution. Determination of the amount of unrecognized U.S. deferred tax liability related to the undistributed earnings of the Company's foreign subsidiaries is not practical due to the complexities associated with the calculation.

As of December 31, 2014, the unamortized tax effects of intercompany transactions of $14.2 million is included within "Prepaid expenses and other current assets" on the consolidated balance sheet. As of December 31, 2013, unamortized tax effects of intercompany transactions of $28.5 million and $20.4 million are included within "Prepaid expenses and other current assets" and "Other non-current assets," respectively, on the consolidated balance sheet. As of December 31, 2014, the estimated future amortization of the tax effects of intercompany transactions to income tax expense is $14.2 million for 2015. This amount excludes 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.