Yelp (YELP) 10-Q 30 Oct 15 2015 Q3 Quarterly report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - shares	9 Months Ended
	Sep. 30, 2015	Oct. 23, 2015
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Amendment Flag	false
Entity Registrant Name	YELP INC
Entity Central Index Key	1,345,016
Trading Symbol	YELP
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Entity Filer Category	Large Accelerated Filer
Class A common stock [Member]
Entity Common Stock, Shares Outstanding		66,016,359
Class B common stock [Member]
Entity Common Stock, Shares Outstanding		9,460,458

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 171,807	$ 247,312
Short-term marketable securities	197,132	118,498
Accounts receivable (net of allowance for doubtful accounts of $2,588 and $1,627 at September 30, 2015 and December 31, 2014, respectively)	46,942	35,593
Prepaid expenses and other current assets	31,952	19,355
Total current assets	$ 447,833	420,758
Long-term marketable securities		38,612
Property, equipment and software, net	$ 78,342	62,761
Goodwill	173,996	67,307
Intangibles, net	41,068	5,786
Restricted cash	16,253	17,943
Other assets	6,913	16,483
Total assets	764,405	629,650
Current liabilities:
Accounts payable	3,305	1,398
Accrued liabilities	49,246	29,581
Deferred revenue	2,543	2,994
Total current liabilities	55,094	33,973
Long-term liabilities	12,849	7,527
Total liabilities	$ 67,943	$ 41,500
Commitments and contingencies (Note 10)
Stockholders' equity
Common stock, $0.000001 par value - 500,000,000 shares authorized; 75,442,578 and 72,920,582 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively
Additional paid-in capital	$ 752,795	$ 627,742
Accumulated other comprehensive loss	(11,679)	(5,609)
Accumulated deficit	(44,654)	(33,983)
Total stockholders' equity	696,462	588,150
Total liabilities and stockholders' equity	$ 764,405	$ 629,650

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Allowance for doubtful accounts	$ 2,588	$ 1,627
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	75,442,578	72,920,582
Common stock, shares outstanding	75,442,578	72,920,582

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net revenue	$ 143,559	$ 102,455	$ 395,980	$ 267,649
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization shown separately below)	14,259	6,174	36,015	17,096
Sales and marketing	82,949	54,551	214,229	147,470
Product development	28,511	17,397	78,816	46,105
General and administrative	20,990	15,185	60,207	41,612
Depreciation and amortization	7,562	4,604	21,624	12,299
Total costs and expenses	154,271	97,911	410,891	264,582
Income (loss) from operations	(10,712)	4,544	(14,911)	3,067
Other income (expense), net	(545)	200	346	183
Income (loss) before income taxes	(11,257)	4,744	(14,565)	3,250
Benefit (provision) for income taxes	3,175	(1,107)	3,894	495
Net income (loss) attributable to common stockholders (Class A and B)	$ (8,082)	$ 3,637	$ (10,671)	$ 3,745
Net income (loss) per share attributable to common stockholders (Class A and Class B)
Basic	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Diluted	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Weighted-average shares used to compute net income (loss) per share attributable to common stockholders (Class A and Class B)
Basic	75,019	72,195	74,450	71,697
Diluted	75,019	77,296	74,450	76,732

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS [Abstract]
Net income (loss)	$ (8,082)	$ 3,637	$ (10,671)	$ 3,745
Other comprehensive income (loss):
Foreign currency translation adjustments	451	(4,442)	1,795	(4,864)
Other comprehensive income (loss)	451	(4,442)	1,795	(4,864)
Comprehensive income (loss)	$ (7,631)	$ (805)	$ (8,876)	$ (1,119)

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
OPERATING ACTIVITIES:
Net income (loss)	$ (10,671)	$ 3,745
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	21,624	12,299
Provision for doubtful accounts and sales returns	10,401	3,894
Stock-based compensation	44,870	30,457
Loss (gain) on disposal of assets and website development costs	130	(5)
Premium amortization, net, on securities held-to-maturity	827	214
Excess tax benefit from stock-based award activity	(4,298)	(899)
Realized gain on investments	(2)	(2)
Changes in operating assets and liabilities:
Accounts receivable	(17,773)	(13,772)
Prepaid expenses and other assets	(15,057)	(7,338)
Accounts payable and accrued expenses	23,904	10,899
Deferred revenue	(428)	(453)
Net cash provided by operating activities	53,527	$ 39,039
INVESTING ACTIVITIES:
Acquisition, net of cash received	(73,422)
Purchases of property, equipment and software	(25,358)	$ (12,743)
Capitalized website and software development costs	(8,658)	(7,969)
Proceeds from sale of property and equipment	109	14
Purchases of intangible assets	(647)	(1,334)
Maturities of investment securities, held-to-maturity	131,870	21,000
Purchases of investment securities, held-to-maturity	(172,717)	(148,359)
Changes in restricted cash	1,664	(9,756)
Net cash used in investing activities	(147,159)	(159,147)
FINANCING ACTIVITIES:
Proceeds from exercise of employee stock options	9,889	17,316
Proceeds from issuance of common stock for Employee Stock Purchase Plan	5,061	4,087
Excess tax benefit from stock-based award activity	4,298	899
Repurchase of common stock	(482)	(1,035)
Net cash provided by financing activities	18,766	21,267
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(639)	(356)
CHANGE IN CASH AND CASH EQUIVALENTS	(75,505)	(99,197)
CASH AND CASH EQUIVALENTS-Beginning of period	247,312	389,764
CASH AND CASH EQUIVALENTS-End of period	171,807	290,567
SUPPLEMENTAL DISCLOSURES OF OTHER CASH FLOW INFORMATION:
Cash paid for income taxes, net of refunds	137	486
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Purchases of property and equipment recorded in accounts payable and accruals	$ 5,446	2,160
Capitalized website and software development costs recorded in accounts payable and accruals		$ 190
Goodwill measurement period adjustment for working capital	$ 51
Issuance of Common Stock in Connection with Acquisition	$ 59,158

DESCRIPTION OF BUSINESS AND BAS

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2015
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION [Abstract]
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	1. DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Yelp Inc. was incorporated in Delaware on September 3, 2004. Except where specifically noted or the context otherwise requires, the use of terms such as the “Company” and “Yelp” in these Notes to Condensed Consolidated Financial Statements refers to Yelp Inc. and its subsidiaries. Yelp connects people with great local businesses by bringing “word of mouth” online and providing a platform for businesses and consumers to engage and transact. Yelp's platform is transforming the way people discover local businesses; every day, millions of consumers visit its website or use its mobile app to find local businesses to meet their everyday needs. Businesses of all sizes use the Yelp platform to engage with consumers at the critical moment when they are deciding where to spend their money. Basis of Presentation The accompanying interim condensed consolidated financial statements are unaudited. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these unaudited interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements contained in the Company's Annual Report on Form 10-K filed with the SEC on February 27, 2015 (the “Annual Report”). The unaudited condensed consolidated balance sheet as of December 31, 2014 included herein was derived from the audited consolidated financial statements as of that date, but does not include all disclosures required by GAAP, including certain notes to the financial statements. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, include all adjustments of a normal recurring nature necessary for the fair presentation of the interim periods presented. Significant Accounting Policies There have been no material changes to the Company's significant accounting policies from those described in the Annual Report. Recent Accounting Pronouncements Not Yet Effective In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the consideration expected to be received in exchange for those goods or services. The new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. On July 9, 2015, the FASB agreed to delay the effective date by one year. In accordance with the agreed upon delay, the new standard is effective for the Company beginning in the first quarter of 2018. Early adoption is permitted, but not before the original effective date of the standard. The new standard is required to be applied retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application. The Company has not yet selected a transition method nor has it determined the impact of the new standard on its consolidated condensed financial statements. In August 2014, FASB issued Accounting Standards Update 2014-15, “Presentation of Financial Statements — Going Concern (Subtopic 205-40).” The new guidance addresses management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures. Management's evaluation should be based on relevant conditions and events that are known and reasonably knowable at the date that the financial statements are issued. The standard will be effective for the first interim period within annual reporting periods beginning after December 31, 2016. Early adoption is permitted. The Company does not expect to early adopt this guidance and does not believe that the adoption of this guidance will have a material impact on its consolidated financial statements. In April 2015, the FASB issued Accounting Standards Update No. 2015-05, “Customer's Accounting for Fees Paid in a Cloud Computing Arrangement” (“ASU 2015-05”). ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change GAAP for a customer's accounting for service contracts. The standard will be effective for the first interim period within annual reporting periods beginning after December 31, 2015. The Company is currently assessing the impact that adopting this new accounting guidance will have on its consolidated financial statements and related disclosures. In June 2015, the FASB issued Accounting Standards Update No. 2015-10, “Technical Corrections and Improvements” (“ASU 2015-10”). ASU 2015-10 amends a wide range of Accounting Standards Codification topics to make clarifying changes, correct unintended application of guidance, and make minor changes that are not expected to have a significant effect on current accounting practice or create a significant administrative cost on most entities. The Company does not anticipate that the adoption of ASU 2015-10 will have a material impact on its consolidated financial statements and related disclosures. In September 2015, the FASB issued Accounting Standards Update No. 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments” (“ASU 2015-16”). ASU 2015-16 eliminates the requirement to restate prior period financial statements for measurement period adjustments. The new guidance requires that the cumulative impact of a measurement period adjustment (including the impact on prior periods) be recognized in the reporting period in which the adjustment is identified. In addition, separate presentation on the face of the income statement or disclosure in the notes is required regarding the portion of the adjustment recorded in the current period earnings, by line item, that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is to be applied prospectively for measurement period adjustments that occur after the effective date. ASU 2015-16 is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2015, and early adoption is permitted. Since it is prospective, the impact of ASU 2015-16 on the Company's financial condition and earnings will depend upon the nature of any measurement period adjustments identified in future periods. Principles of Consolidation These unaudited interim condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates The preparation of the Company's unaudited interim condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. These estimates are based on information available as of the date of the unaudited interim condensed consolidated financial statements; therefore, actual results could differ from management's estimates.

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2015
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	2. FAIR VALUE OF FINANCIAL INSTRUMENTS The Company's investments in money market accounts are recorded as cash equivalents at fair value in the condensed consolidated financial statements. All other financial instruments are classified as held-to-maturity investments and, accordingly, are recorded at amortized cost; however, the Company is required to determine the fair value of these investments on a recurring basis to identify any potential impairment. The accounting guidance for fair value measurements prioritizes the inputs used in measuring fair value in the following hierarchy: Level 1 —Observable inputs, such as quoted prices in active markets, Level 2 —Inputs other than quoted prices in active markets that are observable either directly or indirectly, or Level 3 —Unobservable inputs for which there are little or no market data, which requires the Company to develop its own assumptions. This hierarchy requires the Company to use observable market data, when available, to minimize the use of unobservable inputs when determining fair value. The Company's money market funds and U.S. government bonds are classified within Level 1 of the fair value hierarchy because they are valued using quoted prices in active markets. The Company's commercial paper, corporate bonds and agency bonds are classified within Level 2 of the fair value hierarchy because they have been valued using inputs other than quoted prices in active markets that are observable directly or indirectly. The Company classified the contingent consideration liability related to the acquisition of Restaurant Kritik within Level 3, because it was estimated using a discounted cash flow technique with significant inputs that were not observable in the market. The significant inputs not observable in the market in the Level 3 measurement included the Company's probability assessments of completion, appropriately discounted considering the uncertainties associated with the obligation, and were calculated in accordance with the terms of the asset purchase agreement. During the nine-month period ended September 30, 2015, the Company adjusted the liability to $0.8 million based on the completion of the associated milestones. The following table represents the Company's financial instruments measured at fair value as of September 30, 2015 and December 31, 2014 (in thousands): September 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash Equivalents: Money market funds $ 93,656 $ - $ - $ 93,656 $ 208,593 $ - $ - $ 208,593 Marketable Securities: U.S. government bonds 5,002 - - 5,002 5,005 - - 5,005 Commercial paper - 31,967 31,967 - 31,965 - 31,965 Corporate bonds - 21,073 21,073 - 29,486 - 29,486 Agency bonds - 139,103 139,103 - 90,575 - 90,575 Total cash equivalents and marketable securities $ 98,658 $ 192,143 $ - $ 290,801 $ 213,598 $ 152,026 $ - $ 365,624 Current liabilities: Contingent consideration liability $ - $ - $ 813 $ 813 $ - $ - $ 835 $ 835

MARKETABLE SECURITIES

MARKETABLE SECURITIES	9 Months Ended
	Sep. 30, 2015
MARKETABLE SECURITIES [Abstract]
MARKETABLE SECURITIES	3. MARKETABLE SECURITIES The amortized cost, gross unrealized gains and losses, and fair value of securities held-to-maturity, all of which mature within two years, as of September 30, 2015 and December 31, 2014 were as follows (in thousands): As of September 30, 2015 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,967 $ - $ - $ 31,967 Corporate bonds 21,071 2 - 21,073 Agency bonds 139,094 17 (8 ) 139,103 U.S. government bonds 5,000 2 - 5,002 Total marketable securities $ 197,132 $ 21 $ (8 ) $ 197,145 As of December 31, 2014 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,964 $ - $ - $ 31,964 Corporate bonds 24,397 1 (31 ) 24,367 Agency bonds 57,130 1 (26 ) 57,105 U.S. government bonds 5,007 - (2 ) 5,005 $ 118,498 $ 2 $ (59 ) $ 118,441 Long-term marketable securities : Corporate bonds $ 5,120 $ - $ (1 ) $ 5,119 Agency bonds 33,492 - (22 ) 33,470 $ 38,612 $ - $ (23 ) 38,589 Total marketable securities $ 157,110 $ 2 $ (82 ) 157,030 The following table presents gross unrealized losses and fair values for those securities that were in an unrealized loss position as of September 30, 2015 and December 31, 2014 As of September 30, 2015 Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Corporate bonds $ - $ - $ - $ - $ - $ - Agency bonds 60,244 (8 ) - - 60,244 (8 ) Total $ 60,244 $ (8 ) $ - $ - $ 60,244 $ (8 ) As of December 31, 2014 Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Corporate bonds $ 24,439 $ (32 ) $ - $ - $ 24,439 $ (32 ) Agency bonds 79,564 (48 ) - - 79,564 (48 ) U.S. government bonds 5,005 (2 ) - - 5,005 (2 ) Total $ 109,008 $ (82 ) $ - $ - $ 109,008 $ (82 ) The Company periodically reviews its investment portfolio for other-than-temporary impairment. The Company considers such factors as the duration, severity and reason for the decline in value, and the potential recovery period. The Company also considers whether it is more likely than not that it will be required to sell the securities before the recovery of their amortized cost basis, and whether the amortized cost basis cannot be recovered as a result of credit losses. During the three and nine months ended September 30, 2015 and 2014, the Company did not recognize any other-than-temporary impairment loss.

ACQUISITIONS

ACQUISITIONS	9 Months Ended
	Sep. 30, 2015
ACQUISITIONS [Abstract]
ACQUISITIONS	4. ACQUISITIONS 2015 Acquisition On February 9, 2015, the Company acquired Eat24Hours.com, Inc. (“Eat24”). In connection with the acquisition, all of the outstanding capital stock of Eat24 was converted into the right to receive an aggregate of approximately $ 75.0 1,402,844 59.2 308,626 The acquisition was accounted for as a business combination in accordance with Accounting Standards Codification Topic 805, “ Business Combinations ” (“ASC 805”), with the results of Eat24's operations included in the Company's consolidated financial statements from February 9, 2015. The Company's allocation of the purchase price is preliminary as the amounts related to contingent consideration, identifiable intangible assets, the effects of income taxes resulting from the transaction, and the effects of any net working capital adjustments are still being finalized. Any material measurement period adjustments will be recorded retroactively to the acquisition date. The purchase price allocation, subject to finalization during the measurement period, is as follows (in thousands): February 9, 2015 Fair value of purchase consideration: Cash: Distributed to Eat24 stockholders $ 56,624 Held in escrow account 16,500 Payable on behalf of Eat24 stockholders 1,876 Total cash 75,000 Class A common stock: Distributed to Eat24 stockholders 46,143 Held in escrow account 13,015 Total purchase consideration $ 134,158 Fair value of net assets acquired: Cash and cash equivalents $ 1,578 Intangibles 39,600 Goodwill 110,927 Other assets 6,031 Total assets acquired 158,136 Deferred tax liability (15,207 ) Other liabilities (8,771 ) Total liabilities assumed (23,978 ) Net assets acquired $ 134,158 Estimated useful lives and the amount assigned to each class of intangible assets acquired are as follows: Intangible Asset Type Amount Assigned Useful Life Restaurant relationships 17,400 12.0 Developed technology 7,400 5.0 User relationships 12,000 7.0 Trade name 2,800 4.0 Weighted average 8.6 The intangible assets are being amortized on a straight-line basis, which reflects the pattern in which the economic benefits of the intangible assets are being utilized. The goodwill results from the Company's opportunity to drive daily engagement in its restaurant vertical and potentially expand Eat24's offering to the approximately 1 million U.S. restaurants listed on the Company's platform. None of the goodwill is deductible for tax purposes. For the three months ended September 30, 2015, the Company recorded no acquisition-related transaction costs and for the nine months ended September 30, 2015, the Company recorded approximately $ 0.2 The unaudited pro forma financial information in the table below summarizes the combined results of operations for the Company and Eat24, as though the companies had been Pro Forma Three Months Ended September 30 Nine Months Ended 2015 2014 2015 2014 Revenue $ 143,559 108 ,741 $ 399,227 285,254 Net income (loss) $ (8,082 ) 1,587 $ (11,787 ) 765 Basic net income (loss) per share attributable to common stockholders $ (0.11 ) 0.02 $ (0.16 ) 0.01 Diluted net income (loss) per share attributable to common stockholders $ (0.11 ) 0.02 $ (0.16 ) 0.01 The consolidated statements of operations for the three and nine months ended September 30, 2015 include $ 10.9 26.3 2014 Acquisitions In October 0.1 0.6 Under the Restaurant Kritik asset purchase agreement, the Company agreed to pay an additional € 0.8 0.9 The following table presents the aggregate purchase price allocations of these individually immaterial acquisitions recorded in the Company's condensed consolidated balance sheets as of their acquisition dates (in thousands): Net tangible assets $ (277 ) Goodwill 13,995 Intangible assets 1,546 Total purchase price (excluding contingent consideration) 15,264 Contingent consideration 826 Total purchase price $ 16,090 Estimated useful lives as of the acquisition dates of the intangible assets acquired are as follows: Intangible Asset Type Useful Life Content 5 Developed technology 0.5 Trade name 2 Weighted average 4.3 The intangible assets are being amortized on a straight-line basis, which reflects the pattern in which the economic benefits of the intangible assets are being utilized. The goodwill represents the excess value over both tangible and intangible assets acquired. The goodwill in these transactions is primarily attributable to traffic and the opportunity for expansion. None of the goodwill is deductible for tax purposes.

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS	9 Months Ended
	Sep. 30, 2015
CASH AND CASH EQUIVALENTS [Abstract]
CASH AND CASH EQUIVALENTS	5. CASH AND CASH EQUIVALENTS Cash and cash equivalents as of September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, December 31, 2015 2014 Cash and cash equivalents Cash $ 78,151 $ 38,719 Money market funds 93,656 208,593 Total cash and cash equivalents $ 171,807 $ 247,312 The lease agreements for certain of the Company's offices require the Company to maintain letters of credit issued to the landlords of each facility. Each letter of credit is subject to renewal annually until the applicable lease expires and is collateralized by restricted cash. As of September 30, 2015 and December 31, 2014, the Company had letters of credit totaling $ 16.3 17.9

PROPERTY, EQUIPMENT AND SOFTWAR

PROPERTY, EQUIPMENT AND SOFTWARE, NET	9 Months Ended
	Sep. 30, 2015
PROPERTY, EQUIPMENT AND SOFTWARE, NET [Abstract]
PROPERTY, EQUIPMENT AND SOFTWARE, NET	6. PROPERTY, EQUIPMENT AND SOFTWARE, NET Property, equipment and software, net as of September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, December 31, 2015 2014 Computer equipment $ 25,110 $ 19,111 Software 1,184 802 Capitalized website and internal-use software development costs 38,319 27,602 Furniture and fixtures 10,372 6,621 Leasehold improvements 44,727 36,991 Telecommunication 2,756 2,610 Total 122,468 93,737 Less accumulated depreciation (44,126 ) (30,976 ) Property, equipment and software, net $ 78,342 $ 62,761 Depreciation expense was approximately $ 5.8 3.7 16.7 9.6

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2015
GOODWILL AND INTANGIBLE ASSETS [Abstract]
GOODWILL AND INTANGIBLE ASSETS	7. GOODWILL AND INTANGIBLE ASSETS The Company's goodwill is the result of its acquisitions of other businesses, and represents the excess of purchase consideration over the fair value of assets and liabilities acquired. The Company performed its annual goodwill impairment analysis during the three months ended September 30, 2015 and concluded that goodwill was not impaired, as the fair value of each reporting unit exceeded its carrying value. The changes in the carrying amount of goodwill during the nine months ended September 30, 2015 were as follows (in thousands): Balance as of December 31, 2014 $ 67,307 Goodwill measurement period adjustment 51 Goodwill acquired 110,927 Effect of currency translation (4,289 ) Balance as of September 30, 2015 $ 173,996 Intangible assets at September 30, 2015 and December 31, 2014 Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life September 30, 2015: Restaurant and user relationships $ 29,399 $ (2,026 ) $ 27,373 9.5 Developed and acquired technology 9,313 (2,034 ) 7,279 4.3 Content 4,029 (1,919 ) 2,110 2.9 Data licenses and domains 2,625 (716 ) 1,909 4.1 Trade name and other 3,362 (965 ) 2,397 3.5 Total $ 48,728 $ (7,660 ) $ 41,068 Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life December 31, 2014: Developed and acquired technology $ 1,963 $ (861 ) $ 1,102 4.2 Advertiser relationships 1,853 (1,853 ) - 0.0 Content 4,299 (1,393 ) 2,906 3.6 Data licenses and domains 1,977 (326 ) 1,651 4.5 Trade name and other 596 (469 ) 127 1.4 Total $ 10,688 $ (4,902 ) $ 5,786 Amortization expense was $ 1.7 0.6 4.8 1.9 As of September 30, 2015, the estimated future amortization of purchased intangible assets for (i) the remaining three months of 2015, (ii) each of the succeeding four years and (iii) the succeeding fifth year and thereafter are as follows (in thousands): Year Ending December 31, Amount 2015 (from October 1, 2015) $ 1,716 2016 6,874 2017 6,726 2018 6,250 2019 5,370 2020 and thereafter 14,132 Total amortization $ 41,068

ACCRUED LIABILITIES

ACCRUED LIABILITIES	9 Months Ended
	Sep. 30, 2015
ACCRUED LIABILITIES [Abstract]
ACCRUED LIABILITIES	8. ACCRUED LIABILITIES Accrued liabilities as of September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, 2015 December 31, 2014 Restaurant payable $ 10,938 $ - Accrued vacation 5,717 3,972 Accrued commissions 4,345 4,198 Accrued hosting 3,192 1,478 Accrued marketing 2,276 304 Accrued income, withholding and business taxes 1,434 1,354 Fixed asset purchase commitments 4,645 6,329 Accrued payroll tax 1,785 1,251 Merchant revenue share liability 1,440 1,218 Accrued employee related expenses 2,059 1,209 Accrued employee stock purchase plan liability 2,819 907 Accrued facilities and deferred rent 3,548 3,615 Other accrued expenses 5,048 3,746 Total $ 49,246 $ 29,581

OTHER INCOME (EXPENSE), NET

OTHER INCOME (EXPENSE), NET	9 Months Ended
	Sep. 30, 2015
OTHER INCOME (EXPENSE), NET [Abstract]
OTHER INCOME (EXPENSE), NET	9. OTHER INCOME (EXPENSE), NET Other income (expense), net for the three and nine months ended September 30, 2015 and 2014 consist of the following (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Interest income $ 472 $ 222 $ 903 $ 458 Transaction gain (loss) on foreign exchange (713 ) 98 (621 ) (79 ) Other non-operating income (loss), net (304 ) (120 ) 64 (196 ) Other income (expense) $ (545 ) $ 200 $ 346 $ 183

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2015
COMMITMENTS AND CONTINGENCIES [Abstract]
COMMITMENTS AND CONTINGENCIES	10. COMMITMENTS AND CONTINGENCIES Office Facility Leases — The Company leases its office facilities under operating lease agreements that expire from 2015 to 2025. Certain lease agreements provide for rental payments on a graduated basis. The Company recognizes rent expense on a straight-line basis over the lease period. Rental expense was $ 8.2 3.5 22.7 10.8 The Company has subleased certain office facilities under operating lease agreements that expire in 2021. The Company recognizes sublease rentals on a straight-line basis over the lease period reflected as a reduction in rental expense. Sublease rentals was $ 0.5 0 0.9 0 Legal Proceedings — The Company is subject to legal proceedings arising in the ordinary course of business. Although the results of litigation and claims cannot be predicted with certainty, the Company currently does not believe that the final outcome of any of these matters will have a material adverse effect on the Company's business, financial position, results of operations or cash flows. In August 2014, two putative class action lawsuits alleging violations of federal securities laws were filed in the U.S. District Court for the Northern District of California, naming as defendants the Company and certain of its officers. The lawsuits allege violations of the Securities Exchange Act of 1934, as amended, by the Company and its officers for allegedly making materially false and misleading statements regarding the Company's business and operations between October 29, 2013 and April 3, 2014. These cases were subsequently consolidated and, in January 2015, the plaintiffs filed a consolidated complaint seeking unspecified monetary damages and other relief. Following the court's dismissal of the consolidated complaint on April 21, 2015, the plaintiffs filed a first amended complaint on May 21, 2015. On June 26, 2015, the Company and the other named defendants filed a motion to dismiss the first amended complaint, and a hearing on this motion has been rescheduled for November 10, 2015 On April 23, 2015, a putative class action lawsuit was filed by former Eat24 employees in the Superior Court of California for San Francisco County, naming as defendants the Company and Eat24. The lawsuit asserts that the defendants failed to permit meal and rest periods for certain current and former employees working as Eat24 customer support specialists, and alleges violations of the California Labor Code, applicable Industrial Welfare Commission Wage Orders and the California Business and Professions Code. The plaintiffs seek monetary damages in an unspecified amount and injunctive relief. On May 25, 2015, plaintiffs filed a first amended complaint asserting an additional cause of action for penalties under the Private Attorneys General Act. On June 24, 2015, a former Eat24 sales employee filed a lawsuit, on behalf of herself and a putative class of current and former Eat24 sales employees, against Eat24 in the Superior Court of California for San Francisco County. The lawsuit alleges that Eat24 failed to pay required wages, including overtime wages, allow meal and rest periods and maintain proper records, and asserts causes of action under the California Labor Code, applicable Industrial Welfare Commission Wage Orders and the California Business and Professions Code. The plaintiff seeks monetary damages and penalties in unspecified amounts, as well as injunctive relief. On August 3, 2015, the plaintiff filed a first amended complaint asserting an additional cause of action for penalties under the Private Attorneys General Act. Indemnification Agreements — In the ordinary course of business, the Company may provide indemnifications of varying scope and terms to customers, vendors, lessors, business partners and other parties with respect to certain matters, including, but not limited to, losses arising out of breach of such agreements, services to be provided by the Company or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with directors and certain officers and employees that will require the Company to, among other things, indemnify them against certain liabilities that may arise by reason of their status or service as directors, officers or employees. While the outcome of claims cannot be predicted with certainty, the Company does not believe that the outcome of any claims under indemnification arrangements will have a material effect on the Company's financial position, results of operations or cash flows. The Internal Revenue Service began a payroll tax audit of 2013 and 2014 in June 2015. We have not received a formal assessment and are unable to estimate an amount that is probable in this instance. Accordingly, as of September 30, 2015, no liability has been recorded. We expect the audits and any associated assessments to be finalized by December 31, 2016.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	9 Months Ended
	Sep. 30, 2015
STOCKHOLDERS' EQUITY [Abstract]
STOCKHOLDERS' EQUITY	11. STOCKHOLDERS' EQUITY The following table presents the shares authorized and the shares issued and outstanding as of the periods presented: September 30, 2015 December 31, 2014 Shares Shares Shares Issued and Shares Issued and Authorized Outstanding Authorized Outstanding Stockholders' equity: Class A common stock, $ 0.000001 200,000,000 65,982,120 200,000,000 63,062,071 Class B common stock, $ 0.000001 100,000,000 9,460,458 100,000,000 9,858,511 Common stock, $ 0.000001 200,000,000 - 200,000,000 - Undesignated Preferred Stock 10,000,000 - 10,000,000 - Equity Incentive Plans The Company has outstanding awards under three equity incentive plans: the Amended and Restated 2005 Equity Incentive Plan (the “2005 Plan”), the 2011 Equity Incentive Plan (the “2011 Plan”) and the 2012 Equity Incentive Plan, as amended (the “2012 Plan”). In July 2011, the Company terminated the 2005 Plan and provided that no further stock awards were to be granted under the 2005 Plan. All outstanding stock awards under the 2005 Plan continue to be governed by their existing terms. Upon the effectiveness of the underwriting agreement in connection with the Company's initial public offering (“IPO”), all shares that were reserved under the 2011 Plan but not issued were assumed by the 2012 Plan. No further awards will be granted pursuant to the 2011 Plan. All outstanding stock awards under the 2011 Plan continue to be governed by their existing terms. Under the 2012 Plan, the Company has the ability to issue incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock units (“RSUs”), restricted stock awards (“RSAs”), performance units and performance shares. Additionally, the 2012 Plan provides for the grant of performance cash awards to employees, directors and consultants. Stock Options Stock options granted under the 2012 Plan are granted at a price per share not less than the fair value at date of grant. Options granted to date generally vest over a four 25 10 20 30 40 10 Options Outstanding Weighted- Average Weighted- Remaining Aggregate Average Contractual Intrinsic Number of Exercise Term (in Value Shares Price years) (in thousands) Outstanding – January 1, 2015 9,037,935 19.64 7.26 $ 324,160 Granted 388,450 50.30 Exercised (728,413 ) 13.58 Canceled (272,746 ) 40.69 Outstanding – September 30, 2015 8,425,226 20.90 6.61 $ 50,067 Options vested and expected to vest as of September 30, 2015 8,335,939 20.76 6.59 $ 50,011 Options vested and exercisable as of September 30, 2015 5,552,729 15.73 6.29 $ 47,374 Aggregate intrinsic value represents the difference between the closing price of the Company's Class A common stock and the exercise price of outstanding, in-the-money options. The total intrinsic value of options exercised was approximately $ 1.6 29.4 23.2 96.7 The weighted-average grant date fair value of options granted was $ 18.76 45.53 25.19 44.74 As of September 30, 2015, total unrecognized compensation costs, adjusted for estimated forfeitures, related to unvested stock options was approximately $ 38.0 1.69 RSUs and RSAs The cost of RSUs and RSAs is determined using the fair value of the Company's common stock on the date of grant. RSUs and RSAs generally vest over a four 25 10 20 30 40 Restricted Stock Units Restricted Stock Awards Weighted- Weighted- Average Grant Average Grant Number of Date Fair Number Date Fair Shares Value of Shares Value Unvested—January 1, 2015 1,131,849 $ 64.96 30,970 $ 9.48 Granted 2,282,229 44.72 - - Released (244,151 ) 61.01 (25,971 ) 9.11 Canceled (360,481 ) 56.85 (1,250 ) 11.40 Unvested—September 30, 2015 2,809,446 $ 49.91 $ 3,749 $ 11.42 As of September 30, 2015, the Company had approximately $ 116.5 3.28 Employee Stock Purchase Plan The 2012 Employee Stock Purchase Plan (“ESPP”) allows eligible employees to purchase shares of the Company's Class A common stock at a discount through payroll deductions of up to 15 of their eligible compensation, subject to any plan limitations, during designated offering periods. At the end of each offering period, employees are able to purchase shares at 85 of the fair market value of the Company's Class A common stock on the last day of the offering period. There were no shares purchased by employees under the ESPP during the three months ended September 30, 2015, and 162,373 31.17 133,905 at a weighted-average purchase price of $ 30.52 The Company recognized stock-based compensation expense related to the ESPP of $ 1.1 1.3 3.8 3.5 Stock-Based Compensation The following table summarizes the effects of stock-based compensation expense related to stock-based awards in the condensed consolidated statements of operations during the periods presented (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Cost of revenue $ 435 $ 253 $ 781 $ 522 Sales and marketing 5,568 3,883 16,159 11,008 Product development 5,947 3,835 17,117 10,333 General and administrative 3,733 2,947 10,813 8,594 Total stock-based compensation 15,683 10,918 44,870 30,457 The Company capitalized stock-based compensation expense as website development costs of $ 0.7 0.7 2.2 1.6

NET INCOME (LOSS) PER SHARE

NET INCOME (LOSS) PER SHARE	9 Months Ended
	Sep. 30, 2015
NET INCOME (LOSS) PER SHARE [Abstract]
NET INCOME (LOSS) PER SHARE	12. NET INCOME (LOSS) PER SHARE Basic and diluted net income (loss) per share attributable to common stockholders is presented in conformity with the “two-class method” required for participating securities. Shares of Class A and Class B common stock are the only outstanding equity in the Company. The rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Each share of Class A common stock is entitled to one 10 Basic net income per share is computed using the weighted-average number of shares of common stock outstanding during the period. Diluted net income per share is computed using the weighted-average number of shares of common stock and, if dilutive, potential shares of common stock outstanding during the period. The Company's potential shares of common stock consist of the incremental shares of common stock issuable upon the exercise of stock options and shares issuable upon the vesting of RSUs, and, to a lesser extent, unvested shares subject to RSAs and purchases related to the ESPP. The dilutive effect of these potential shares of common stock is reflected in diluted earnings per share by application of the treasury stock method. The computation of the diluted net income per share of Class A common stock assumes the conversion of Class B common stock, while the diluted net income per share of Class B common stock does not assume the conversion of Class B common stock. The undistributed earnings are allocated based on the contractual participation rights of the Class A and Class B common stock as if the earnings for the year have been distributed. As the liquidation and dividend rights are identical, the undistributed earnings are allocated on a proportionate basis. Further, as the conversion of Class B common stock is assumed in the computation of the diluted net income per share of Class A common stock, the undistributed earnings are equal to net income for that computation. The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except per share data): Three Months Ended September 30, 2015 2014 Class A Class B Class A Class B Basic net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings $ (7,063 ) $ (1,019 ) $ 3,125 $ 512 Denominator: Weighted-average shares outstanding 65,556 9,463 62,036 10,159 Basic net income (loss) per share attributable to common stockholders $ (0.11 ) $ (0.11 ) $ 0.05 $ 0.05 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (7,063 ) $ (1,019 ) $ 3,125 $ 512 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 512 — Reallocation of undistributed earnings to Class B shares — — — 98 Allocation of undistributed earnings $ (7,063 ) $ (1,019 ) $ 3,637 $ 610 Denominator: Number of shares used in basic calculation 65,556 9,463 62,036 10,159 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,159 — Stock options — — 4,702 2,761 Other dilutive securities — — 399 40 Number of shares used in diluted calculation 65,556 9,463 77,296 12,960 Diluted net income (loss) per share attributable to common stockholders $ (0.11 ) $ (0.11 ) $ 0.05 $ 0.05 Nine Months Ended September 30, 2015 2014 Class A Class B Class A Class B Basic net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings $ (9,298 ) $ (1,373 ) $ 3,190 $ 555 Denominator: Weighted-average common shares outstanding 64,871 9,579 61,068 10,629 Basic net income (loss) per share attributable to common stockholders $ (0.14 ) $ (0.14 ) $ 0.05 $ 0.05 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (9,298 ) $ (1,373 ) $ 3,190 $ 555 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 555 — Reallocation of undistributed earnings to Class B shares — — — 100 Allocation of undistributed earnings $ (9,298 ) $ (1,373 ) $ 3,745 $ 655 Denominator: Number of shares used in basic calculation 64,871 9,579 61,068 10,629 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,629 — Stock options — — 4,628 2,746 Other dilutive securities — — 407 39 Number of shares used in diluted calculation 64,871 9,579 76,732 13,414 Diluted net income (loss) per share attributable to common stockholders $ (0.14 ) $ (0.14 ) $ 0.05 $ 0.05 The following weighted-average stock-based instruments were excluded from the calculation of diluted net income (loss) per share because their effect would have been anti-dilutive for the periods presented (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Stock options 8,425 100 8,425 70 Restricted stock units and awards 2,813 — 2,813 — Contingently issuable shares 309 — 309 —

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2015
INCOME TAXES [Abstract]
INCOME TAXES	13. INCOME TAXES The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely. The Company recorded an income tax benefit of $ 3.2 1.1 3.9 0.5 The tax benefit for the nine months ended September 30, 2015 is due to $ 2.9 1.0 The tax benefit for the nine months ended September 30, 2014 is due to recognition of an income tax benefit of approximately $ 2.0 1.5 The primary difference between the effective tax rate and the federal statutory tax rate relates to the valuation allowances on certain of the Company's net operating losses, foreign tax rate differences, meals and entertainment, tax credits, and non-deductible stock-based compensation expense. As of September 30, 2015, the total amount of gross unrecognized tax benefits was $ 3.8 0.1 0.2 In addition, the Company is subject to the continuous examination of its income tax returns by the IRS and other tax authorities. We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. We continue to monitor the progress of ongoing discussions with tax authorities and the impact, if any, of the expected expiration of the statute of limitations in various taxing jurisdictions. We believe that an adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax audits cannot be predicted with certainty. If any issues addressed in the Company's tax audits are resolved in a manner not consistent with management's expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. Although timing of the resolution and/or closure of audits is not certain, the Company does not believe it is reasonably possible that its unrecognized tax benefits would materially change in the next 12 months.

INFORMATION ABOUT REVENUE AND G

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS	9 Months Ended
	Sep. 30, 2015
INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS [Abstract]
INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS	14. INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS The Company considers operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by the Company's chief operating decision maker in deciding how to allocate resources and in assessing performance. The chief operating decision maker for the Company is the Chief Executive Officer. The Chief Executive Officer reviews financial information presented on a consolidated basis, accompanied by information about revenue by product line and geographic region for purposes of allocating resources and evaluating financial performance. The Company has one business activity and there are no segment managers who are held accountable for operations, operating results or plans for levels or components below the consolidated unit level. Accordingly, the Company has determined that it has a single operating and reporting segment. During the three months ended June 30, 2015, the Company began tracking revenue for the transactions product line, which consists of Eat24, Platform transactions and the sale of Yelp Deals and Gift Certificates. The Company has presented transactions revenue separately in the tables and discussion for prior periods for purposes of comparison. Revenue by geography is based on the billing address of the customer. The following tables present the Company's net revenue by product line and long-lived assets by geographic region for the periods presented (in thousands): Net Revenue Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Net revenue by product: Local advertising $ 115,932 $ 85,132 $ 322,385 $ 226,012 Transactions 11,973 1,338 29,883 3,830 Brand advertising 8,978 9,318 23,907 25,828 Other services 6,676 6,667 19,805 11,979 Total net revenue $ 143,559 $ 102,455 $ 395,980 $ 267,649 During the three and nine months Long-Lived Assets September 30, December 31, 2015 2014 United States $ 79,548 $ 73,344 All Other Countries 5,707 5,900 Total long-lived assets $ 85,255 $ 79,244

DESCRIPTION OF BUSINESS AND B21

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Policy)	9 Months Ended
	Sep. 30, 2015
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim condensed consolidated financial statements are unaudited. These unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Accordingly, these unaudited interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements contained in the Company's Annual Report on Form 10-K filed with the SEC on February 27, 2015 (the “Annual Report”). The unaudited condensed consolidated balance sheet as of December 31, 2014 included herein was derived from the audited consolidated financial statements as of that date, but does not include all disclosures required by GAAP, including certain notes to the financial statements. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and, in the opinion of management, include all adjustments of a normal recurring nature necessary for the fair presentation of the interim periods presented.
Recent Accounting Pronouncements Not Yet Effective	Recent Accounting Pronouncements Not Yet Effective In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the consideration expected to be received in exchange for those goods or services. The new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. On July 9, 2015, the FASB agreed to delay the effective date by one year. In accordance with the agreed upon delay, the new standard is effective for the Company beginning in the first quarter of 2018. Early adoption is permitted, but not before the original effective date of the standard. The new standard is required to be applied retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application. The Company has not yet selected a transition method nor has it determined the impact of the new standard on its consolidated condensed financial statements. In August 2014, FASB issued Accounting Standards Update 2014-15, “Presentation of Financial Statements — Going Concern (Subtopic 205-40).” The new guidance addresses management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures. Management's evaluation should be based on relevant conditions and events that are known and reasonably knowable at the date that the financial statements are issued. The standard will be effective for the first interim period within annual reporting periods beginning after December 31, 2016. Early adoption is permitted. The Company does not expect to early adopt this guidance and does not believe that the adoption of this guidance will have a material impact on its consolidated financial statements. In April 2015, the FASB issued Accounting Standards Update No. 2015-05, “Customer's Accounting for Fees Paid in a Cloud Computing Arrangement” (“ASU 2015-05”). ASU 2015-05 provides guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change GAAP for a customer's accounting for service contracts. The standard will be effective for the first interim period within annual reporting periods beginning after December 31, 2015. The Company is currently assessing the impact that adopting this new accounting guidance will have on its consolidated financial statements and related disclosures. In June 2015, the FASB issued Accounting Standards Update No. 2015-10, “Technical Corrections and Improvements” (“ASU 2015-10”). ASU 2015-10 amends a wide range of Accounting Standards Codification topics to make clarifying changes, correct unintended application of guidance, and make minor changes that are not expected to have a significant effect on current accounting practice or create a significant administrative cost on most entities. The Company does not anticipate that the adoption of ASU 2015-10 will have a material impact on its consolidated financial statements and related disclosures. In September 2015, the FASB issued Accounting Standards Update No. 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments” (“ASU 2015-16”). ASU 2015-16 eliminates the requirement to restate prior period financial statements for measurement period adjustments. The new guidance requires that the cumulative impact of a measurement period adjustment (including the impact on prior periods) be recognized in the reporting period in which the adjustment is identified. In addition, separate presentation on the face of the income statement or disclosure in the notes is required regarding the portion of the adjustment recorded in the current period earnings, by line item, that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is to be applied prospectively for measurement period adjustments that occur after the effective date. ASU 2015-16 is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2015, and early adoption is permitted. Since it is prospective, the impact of ASU 2015-16 on the Company's financial condition and earnings will depend upon the nature of any measurement period adjustments identified in future periods.
Principles of Consolidation	Principles of Consolidation These unaudited interim condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of the Company's unaudited interim condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. These estimates are based on information available as of the date of the unaudited interim condensed consolidated financial statements; therefore, actual results could differ from management's estimates.

FAIR VALUE OF FINANCIAL INSTR22

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2015
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value	September 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash Equivalents: Money market funds $ 93,656 $ - $ - $ 93,656 $ 208,593 $ - $ - $ 208,593 Marketable Securities: U.S. government bonds 5,002 - - 5,002 5,005 - - 5,005 Commercial paper - 31,967 31,967 - 31,965 - 31,965 Corporate bonds - 21,073 21,073 - 29,486 - 29,486 Agency bonds - 139,103 139,103 - 90,575 - 90,575 Total cash equivalents and marketable securities $ 98,658 $ 192,143 $ - $ 290,801 $ 213,598 $ 152,026 $ - $ 365,624 Current liabilities: Contingent consideration liability $ - $ - $ 813 $ 813 $ - $ - $ 835 $ 835

MARKETABLE SECURITIES (Tables)

MARKETABLE SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2015
MARKETABLE SECURITIES [Abstract]
Schedule of the Fair Value to Amortized Cost Basis of Securities Held-to-Maturity	As of September 30, 2015 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,967 $ - $ - $ 31,967 Corporate bonds 21,071 2 - 21,073 Agency bonds 139,094 17 (8 ) 139,103 U.S. government bonds 5,000 2 - 5,002 Total marketable securities $ 197,132 $ 21 $ (8 ) $ 197,145 As of December 31, 2014 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,964 $ - $ - $ 31,964 Corporate bonds 24,397 1 (31 ) 24,367 Agency bonds 57,130 1 (26 ) 57,105 U.S. government bonds 5,007 - (2 ) 5,005 $ 118,498 $ 2 $ (59 ) $ 118,441 Long-term marketable securities : Corporate bonds $ 5,120 $ - $ (1 ) $ 5,119 Agency bonds 33,492 - (22 ) 33,470 $ 38,612 $ - $ (23 ) 38,589 Total marketable securities $ 157,110 $ 2 $ (82 ) 157,030
Schedule of Securities in an Unrealized Loss Position	As of September 30, 2015 Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Corporate bonds $ - $ - $ - $ - $ - $ - Agency bonds 60,244 (8 ) - - 60,244 (8 ) Total $ 60,244 $ (8 ) $ - $ - $ 60,244 $ (8 ) As of December 31, 2014 Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Corporate bonds $ 24,439 $ (32 ) $ - $ - $ 24,439 $ (32 ) Agency bonds 79,564 (48 ) - - 79,564 (48 ) U.S. government bonds 5,005 (2 ) - - 5,005 (2 ) Total $ 109,008 $ (82 ) $ - $ - $ 109,008 $ (82 )

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	9 Months Ended
	Sep. 30, 2015
Eat24 [Member]
Business Acquisition [Line Items]
Schedule of Purchase Price, Assets Aquired and Liabilities Assumed	February 9, 2015 Fair value of purchase consideration: Cash: Distributed to Eat24 stockholders $ 56,624 Held in escrow account 16,500 Payable on behalf of Eat24 stockholders 1,876 Total cash 75,000 Class A common stock: Distributed to Eat24 stockholders 46,143 Held in escrow account 13,015 Total purchase consideration $ 134,158 Fair value of net assets acquired: Cash and cash equivalents $ 1,578 Intangibles 39,600 Goodwill 110,927 Other assets 6,031 Total assets acquired 158,136 Deferred tax liability (15,207 ) Other liabilities (8,771 ) Total liabilities assumed (23,978 ) Net assets acquired $ 134,158
Schedule of Acquired Intangible Assets	Intangible Asset Type Amount Assigned Useful Life Restaurant relationships 17,400 12.0 Developed technology 7,400 5.0 User relationships 12,000 7.0 Trade name 2,800 4.0 Weighted average 8.6
Schedule of Pro Forma Results	Pro Forma Three Months Ended September 30 Nine Months Ended 2015 2014 2015 2014 Revenue $ 143,559 108 ,741 $ 399,227 285,254 Net income (loss) $ (8,082 ) 1,587 $ (11,787 ) 765 Basic net income (loss) per share attributable to common stockholders $ (0.11 ) 0.02 $ (0.16 ) 0.01 Diluted net income (loss) per share attributable to common stockholders $ (0.11 ) 0.02 $ (0.16 ) 0.01
Restaurant Kritik and Cityvox [Member]
Business Acquisition [Line Items]
Schedule of Purchase Price, Assets Aquired and Liabilities Assumed	Net tangible assets $ (277 ) Goodwill 13,995 Intangible assets 1,546 Total purchase price (excluding contingent consideration) 15,264 Contingent consideration 826 Total purchase price $ 16,090
Schedule of Acquired Intangible Assets	Intangible Asset Type Useful Life Content 5 Developed technology 0.5 Trade name 2 Weighted average 4.3

CASH AND CASH EQUIVALENTS (Tabl

CASH AND CASH EQUIVALENTS (Tables)	9 Months Ended
	Sep. 30, 2015
CASH AND CASH EQUIVALENTS [Abstract]
Schedule of Cash and Cash Equivalents	September 30, December 31, 2015 2014 Cash and cash equivalents Cash $ 78,151 $ 38,719 Money market funds 93,656 208,593 Total cash and cash equivalents $ 171,807 $ 247,312

PROPERTY, EQUIPMENT, AND SOFTWA

PROPERTY, EQUIPMENT, AND SOFTWARE, NET (Tables)	9 Months Ended
	Sep. 30, 2015
PROPERTY, EQUIPMENT AND SOFTWARE, NET [Abstract]
Schedule of Property, Equipment and Software	September 30, December 31, 2015 2014 Computer equipment $ 25,110 $ 19,111 Software 1,184 802 Capitalized website and internal-use software development costs 38,319 27,602 Furniture and fixtures 10,372 6,621 Leasehold improvements 44,727 36,991 Telecommunication 2,756 2,610 Total 122,468 93,737 Less accumulated depreciation (44,126 ) (30,976 ) Property, equipment and software, net $ 78,342 $ 62,761

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2015
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Schedule of Goodwill	Balance as of December 31, 2014 $ 67,307 Goodwill measurement period adjustment 51 Goodwill acquired 110,927 Effect of currency translation (4,289 ) Balance as of September 30, 2015 $ 173,996
Schedule of Intangible Assets	Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life September 30, 2015: Restaurant and user relationships $ 29,399 $ (2,026 ) $ 27,373 9.5 Developed and acquired technology 9,313 (2,034 ) 7,279 4.3 Content 4,029 (1,919 ) 2,110 2.9 Data licenses and domains 2,625 (716 ) 1,909 4.1 Trade name and other 3,362 (965 ) 2,397 3.5 Total $ 48,728 $ (7,660 ) $ 41,068 Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life December 31, 2014: Developed and acquired technology $ 1,963 $ (861 ) $ 1,102 4.2 Advertiser relationships 1,853 (1,853 ) - 0.0 Content 4,299 (1,393 ) 2,906 3.6 Data licenses and domains 1,977 (326 ) 1,651 4.5 Trade name and other 596 (469 ) 127 1.4 Total $ 10,688 $ (4,902 ) $ 5,786
Schedule of Future Amortization Expense	Year Ending December 31, Amount 2015 (from October 1, 2015) $ 1,716 2016 6,874 2017 6,726 2018 6,250 2019 5,370 2020 and thereafter 14,132 Total amortization $ 41,068

ACCRUED LIABILITIES (Tables)

ACCRUED LIABILITIES (Tables)	9 Months Ended
	Sep. 30, 2015
ACCRUED LIABILITIES [Abstract]
Schedule of Accrued Liabilities	September 30, 2015 December 31, 2014 Restaurant payable $ 10,938 $ - Accrued vacation 5,717 3,972 Accrued commissions 4,345 4,198 Accrued hosting 3,192 1,478 Accrued marketing 2,276 304 Accrued income, withholding and business taxes 1,434 1,354 Fixed asset purchase commitments 4,645 6,329 Accrued payroll tax 1,785 1,251 Merchant revenue share liability 1,440 1,218 Accrued employee related expenses 2,059 1,209 Accrued employee stock purchase plan liability 2,819 907 Accrued facilities and deferred rent 3,548 3,615 Other accrued expenses 5,048 3,746 Total $ 49,246 $ 29,581

OTHER INCOME (EXPENSE), NET (Ta

OTHER INCOME (EXPENSE), NET (Tables)	9 Months Ended
	Sep. 30, 2015
OTHER INCOME (EXPENSE), NET [Abstract]
Schedule of Other Income (Expense)	Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Interest income $ 472 $ 222 $ 903 $ 458 Transaction gain (loss) on foreign exchange (713 ) 98 (621 ) (79 ) Other non-operating income (loss), net (304 ) (120 ) 64 (196 ) Other income (expense) $ (545 ) $ 200 $ 346 $ 183

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	9 Months Ended
	Sep. 30, 2015
STOCKHOLDERS' EQUITY [Abstract]
Schedule of Stock by Class	September 30, 2015 December 31, 2014 Shares Shares Shares Issued and Shares Issued and Authorized Outstanding Authorized Outstanding Stockholders' equity: Class A common stock, $ 0.000001 200,000,000 65,982,120 200,000,000 63,062,071 Class B common stock, $ 0.000001 100,000,000 9,460,458 100,000,000 9,858,511 Common stock, $ 0.000001 200,000,000 - 200,000,000 - Undesignated Preferred Stock 10,000,000 - 10,000,000 -
Schedule of Stock Option Activity	Options Outstanding Weighted- Average Weighted- Remaining Aggregate Average Contractual Intrinsic Number of Exercise Term (in Value Shares Price years) (in thousands) Outstanding – January 1, 2015 9,037,935 19.64 7.26 $ 324,160 Granted 388,450 50.30 Exercised (728,413 ) 13.58 Canceled (272,746 ) 40.69 Outstanding – September 30, 2015 8,425,226 20.90 6.61 $ 50,067 Options vested and expected to vest as of September 30, 2015 8,335,939 20.76 6.59 $ 50,011 Options vested and exercisable as of September 30, 2015 5,552,729 15.73 6.29 $ 47,374
Summary of RSUs and RSAs Activity	Restricted Stock Units Restricted Stock Awards Weighted- Weighted- Average Grant Average Grant Number of Date Fair Number Date Fair Shares Value of Shares Value Unvested—January 1, 2015 1,131,849 $ 64.96 30,970 $ 9.48 Granted 2,282,229 44.72 - - Released (244,151 ) 61.01 (25,971 ) 9.11 Canceled (360,481 ) 56.85 (1,250 ) 11.40 Unvested—September 30, 2015 2,809,446 $ 49.91 $ 3,749 $ 11.42
Schedule of Stock-Based Compensation Expense	Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Cost of revenue $ 435 $ 253 $ 781 $ 522 Sales and marketing 5,568 3,883 16,159 11,008 Product development 5,947 3,835 17,117 10,333 General and administrative 3,733 2,947 10,813 8,594 Total stock-based compensation 15,683 10,918 44,870 30,457

NET INCOME (LOSS) PER SHARE (Ta

NET INCOME (LOSS) PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2015
NET INCOME (LOSS) PER SHARE [Abstract]
Schedule of Earnings Per Share	Three Months Ended September 30, 2015 2014 Class A Class B Class A Class B Basic net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings $ (7,063 ) $ (1,019 ) $ 3,125 $ 512 Denominator: Weighted-average shares outstanding 65,556 9,463 62,036 10,159 Basic net income (loss) per share attributable to common stockholders $ (0.11 ) $ (0.11 ) $ 0.05 $ 0.05 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (7,063 ) $ (1,019 ) $ 3,125 $ 512 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 512 — Reallocation of undistributed earnings to Class B shares — — — 98 Allocation of undistributed earnings $ (7,063 ) $ (1,019 ) $ 3,637 $ 610 Denominator: Number of shares used in basic calculation 65,556 9,463 62,036 10,159 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,159 — Stock options — — 4,702 2,761 Other dilutive securities — — 399 40 Number of shares used in diluted calculation 65,556 9,463 77,296 12,960 Diluted net income (loss) per share attributable to common stockholders $ (0.11 ) $ (0.11 ) $ 0.05 $ 0.05 Nine Months Ended September 30, 2015 2014 Class A Class B Class A Class B Basic net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings $ (9,298 ) $ (1,373 ) $ 3,190 $ 555 Denominator: Weighted-average common shares outstanding 64,871 9,579 61,068 10,629 Basic net income (loss) per share attributable to common stockholders $ (0.14 ) $ (0.14 ) $ 0.05 $ 0.05 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (9,298 ) $ (1,373 ) $ 3,190 $ 555 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 555 — Reallocation of undistributed earnings to Class B shares — — — 100 Allocation of undistributed earnings $ (9,298 ) $ (1,373 ) $ 3,745 $ 655 Denominator: Number of shares used in basic calculation 64,871 9,579 61,068 10,629 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,629 — Stock options — — 4,628 2,746 Other dilutive securities — — 407 39 Number of shares used in diluted calculation 64,871 9,579 76,732 13,414 Diluted net income (loss) per share attributable to common stockholders $ (0.14 ) $ (0.14 ) $ 0.05 $ 0.05
Schedule of Anti-dilutive Securities	Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Stock options 8,425 100 8,425 70 Restricted stock units and awards 2,813 — 2,813 — Contingently issuable shares 309 — 309 —

INFORMATION ABOUT REVENUE AND32

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS (Tables)	9 Months Ended
	Sep. 30, 2015
INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS [Abstract]
Schedule of Revenue by Product Line	Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Net revenue by product: Local advertising $ 115,932 $ 85,132 $ 322,385 $ 226,012 Transactions 11,973 1,338 29,883 3,830 Brand advertising 8,978 9,318 23,907 25,828 Other services 6,676 6,667 19,805 11,979 Total net revenue $ 143,559 $ 102,455 $ 395,980 $ 267,649
Schedule of Long-Lived Assets by Geographic Region	September 30, December 31, 2015 2014 United States $ 79,548 $ 73,344 All Other Countries 5,707 5,900 Total long-lived assets $ 85,255 $ 79,244

FAIR VALUE OF FINANCIAL INSTR33

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 93,656	$ 208,593
Marketable securities	197,145	157,030
Total cash equivalents and marketable securities	290,801	365,624
Contingent consideration liability	813	835
U.S. government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	5,002	5,005
Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	31,967	31,965
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	21,073	29,486
Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	139,103	90,575
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	93,656	208,593
Total cash equivalents and marketable securities	$ 98,658	$ 213,598
Contingent consideration liability
Recurring [Member] | Level 1 [Member] | U.S. government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 5,002	$ 5,005
Recurring [Member] | Level 1 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 1 [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 1 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds
Total cash equivalents and marketable securities	$ 192,143	$ 152,026
Contingent consideration liability
Recurring [Member] | Level 2 [Member] | U.S. government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 2 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 31,967	$ 31,965
Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	21,073	29,486
Recurring [Member] | Level 2 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 139,103	$ 90,575
Recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds
Total cash equivalents and marketable securities
Contingent consideration liability	$ 813	$ 835
Recurring [Member] | Level 3 [Member] | U.S. government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 3 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 3 [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities
Recurring [Member] | Level 3 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities

MARKETABLE SECURITIES (Schedule

MARKETABLE SECURITIES (Schedule of the Fair Value to Amortized Cost Basis of Securities Held-to-Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 197,132	$ 157,110
Gross Unrealized Gains	21	2
Gross Unrealized Losses	(8)	(82)
Fair Value	197,145	157,030
Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	197,132	118,498
Gross Unrealized Gains	21	2
Gross Unrealized Losses	(8)	(59)
Fair Value	197,145	118,441
Long-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost		$ 38,612
Gross Unrealized Gains
Gross Unrealized Losses		$ (23)
Fair Value		38,589
Commercial paper [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	31,967	31,965
Commercial paper [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 31,967	$ 31,964
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	$ 31,967	$ 31,964
Corporate bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	21,073	29,486
Corporate bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	21,071	24,397
Gross Unrealized Gains	$ 2	1
Gross Unrealized Losses		(31)
Fair Value	$ 21,073	24,367
Corporate bonds [Member] | Long-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost		$ 5,120
Gross Unrealized Gains
Gross Unrealized Losses		$ (1)
Fair Value		5,119
Agency bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	139,103	90,575
Agency bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	139,094	57,130
Gross Unrealized Gains	17	1
Gross Unrealized Losses	(8)	(26)
Fair Value	139,103	57,105
Agency bonds [Member] | Long-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost		$ 33,492
Gross Unrealized Gains
Gross Unrealized Losses		$ (22)
Fair Value		33,470
U.S. government bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	5,002	5,005
U.S. government bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,000	$ 5,007
Gross Unrealized Gains	$ 2
Gross Unrealized Losses		$ (2)
Fair Value	$ 5,002	$ 5,005

MARKETABLE SECURITIES (Schedu35

MARKETABLE SECURITIES (Schedule of Securities in an Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value
Less than 12 months	$ 60,244	$ 109,008
12 months or greater
Total	$ 60,244	$ 109,008
Unrealized Loss
Less than 12 months	$ (8)	$ (82)
12 months or greater
Total	$ (8)	$ (82)
Corporate bonds [Member]
Fair Value
Less than 12 months		$ 24,439
12 months or greater
Total		$ 24,439
Unrealized Loss
Less than 12 months		$ (32)
12 months or greater
Total		$ (32)
Agency bonds [Member]
Fair Value
Less than 12 months	$ 60,244	$ 79,564
12 months or greater
Total	$ 60,244	$ 79,564
Unrealized Loss
Less than 12 months	$ (8)	$ (48)
12 months or greater
Total	$ (8)	$ (48)
U.S. government bonds [Member]
Fair Value
Less than 12 months		$ 5,005
12 months or greater
Total		$ 5,005
Unrealized Loss
Less than 12 months		$ (2)
12 months or greater
Total		$ (2)

ACQUISITIONS (Summary of Purcha

ACQUISITIONS (Summary of Purchase Price and Net Assets Acquired) (Details) € in Millions	Feb. 09, 2015USD ($)shares	Sep. 30, 2015USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2014EUR (€)
Business Acquisition [Line Items]
Contingent liability		$ 813,000	$ 813,000		$ 835,000
Fair value of purchase consideration:
Net cash consideration			73,422,000
Fair value of net assets acquired:
Goodwill		173,996,000	173,996,000		67,307,000
Eat 24 Inc [Member]
Business Acquisition [Line Items]
Acquisition-related transaction costs		$ 0	$ 200,000
Shares issued or issuable for business acquisition | shares	1,402,844
Fair value of purchase consideration:
Cash consideration	$ 75,000,000
Fair value of common stock	59,200,000
Payable on behalf of Eat24 stockholders	1,876,000
Total purchase price	134,158,000
Fair value of net assets acquired:
Cash and cash equivalents	1,578,000
Intangibles	39,600,000
Goodwill	110,927,000
Other assets	6,031,000
Total assets acquired	158,136,000
Deferred tax liability	(15,207,000)
Other liabilities	(8,771,000)
Total liabilities assumed	(23,978,000)
Net assets acquired	134,158,000
Eat 24 Inc [Member] | Distributed [Member]
Fair value of purchase consideration:
Cash consideration	56,624,000
Fair value of common stock	$ 46,143,000
Eat 24 Inc [Member] | Escrow account [Member]
Business Acquisition [Line Items]
Shares issued or issuable for business acquisition | shares	308,626
Fair value of purchase consideration:
Cash consideration	$ 16,500,000
Fair value of common stock	$ 13,015,000
Restaurant Kritik and Cityvox [Member]
Business Acquisition [Line Items]
Cash acquired from acquisition					100,000
Acquisition-related transaction costs					600,000
Contingent consideration agreed upon					900,000	€ 0.8
Fair value of purchase consideration:
Net cash consideration					15,264,000
Payable on behalf of Eat24 stockholders					826,000
Total purchase price					16,090,000
Fair value of net assets acquired:
Net tangible assets					(277,000)
Intangibles					1,546,000
Goodwill					$ 13,995,000

ACQUISITIONS (Summary of Estima

ACQUISITIONS (Summary of Estimated Useful lives of Intangible Assets Acquired ) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Feb. 09, 2015
Eat 24 Inc [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned			$ 39,600
Weighted average useful life	8 years 7 months 6 days
Eat 24 Inc [Member] | Restaurant relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned			17,400
Weighted average useful life	12 years
Eat 24 Inc [Member] | Developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned			7,400
Weighted average useful life	5 years
Eat 24 Inc [Member] | User relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned			12,000
Weighted average useful life	7 years
Eat 24 Inc [Member] | Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned			$ 2,800
Weighted average useful life	4 years
Restaurant Kritik and Cityvox [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount Assigned		$ 1,546
Weighted average useful life		4 years 3 months 18 days
Restaurant Kritik and Cityvox [Member] | Developed technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life		6 months
Restaurant Kritik and Cityvox [Member] | Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life		2 years
Restaurant Kritik and Cityvox [Member] | Content [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average useful life		5 years

ACQUISITIONS (Schedule of Pro F

ACQUISITIONS (Schedule of Pro Forma Results) (Details) - Eat24 [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Revenue	$ 143,559	$ 108,741	$ 399,227	$ 285,254
Net income (loss)	$ (8,082)	$ 1,587	$ (11,787)	$ 765
Basic net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.02	$ (0.16)	$ 0.01
Diluted net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.02	$ (0.16)	$ 0.01
Net loss attributable to Eat24	$ 10,900		$ 26,300

CASH AND CASH EQUIVALENTS (Deta

CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Cash and cash equivalents
Cash	$ 78,151	$ 38,719
Money market funds	93,656	208,593
Total cash and cash equivalents	171,807	247,312	$ 290,567	$ 389,764
Restricted cash related to letters of credit	$ 16,253	$ 17,943

PROPERTY, EQUIPMENT AND SOFTW40

PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
PROPERTY, EQUIPMENT AND SOFTWARE, NET [Abstract]
Depreciation expense	$ 5,800	$ 3,700	$ 16,700	$ 9,600
Property, Plant and Equipment [Line Items]
Property, equipment and software	122,468		122,468		$ 93,737
Less accumulated depreciation	(44,126)		(44,126)		(30,976)
Property, equipment and software, net	78,342		78,342		62,761
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	25,110		25,110		19,111
Software [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	1,184		1,184		802
Capitalized website and internal-use software development costs [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	38,319		38,319		27,602
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	10,372		10,372		6,621
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	44,727		44,727		36,991
Telecommunication [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	$ 2,756		$ 2,756		$ 2,610

GOODWILL AND INTANGIBLE ASSET41

GOODWILL AND INTANGIBLE ASSETS (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Balance	$ 67,307
Goodwill measurement period adjustment	51
Goodwill acquired	110,927
Effect of currency translation	(4,289)
Balance	$ 173,996

GOODWILL AND INTANGIBLE ASSET42

GOODWILL AND INTANGIBLE ASSETS (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Amortization expense	$ 1,700	$ 600	$ 4,800	$ 1,900
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48,728		48,728		$ 10,688
Accumulated Amortization	(7,660)		(7,660)		(4,902)
Net Carrying Amount	41,068		41,068		5,786
Restaurant and user relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,399		29,399
Accumulated Amortization	(2,026)		(2,026)
Net Carrying Amount	27,373		$ 27,373
Weighted Average Remaining Life			9 years 6 months
Developed and acquired technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,313		$ 9,313		1,963
Accumulated Amortization	(2,034)		(2,034)		(861)
Net Carrying Amount	7,279		$ 7,279		$ 1,102
Weighted Average Remaining Life			4 years 3 months 18 days		4 years 2 months 12 days
Content [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,029		$ 4,029		$ 4,299
Accumulated Amortization	(1,919)		(1,919)		(1,393)
Net Carrying Amount	2,110		$ 2,110		$ 2,906
Weighted Average Remaining Life			2 years 10 months 24 days		3 years 7 months 6 days
Data licenses and domains [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,625		$ 2,625		$ 1,977
Accumulated Amortization	(716)		(716)		(326)
Net Carrying Amount	1,909		$ 1,909		$ 1,651
Weighted Average Remaining Life			4 years 1 month 6 days		4 years 6 months
Trade name and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,362		$ 3,362		$ 596
Accumulated Amortization	(965)		(965)		(469)
Net Carrying Amount	$ 2,397		$ 2,397		$ 127
Weighted Average Remaining Life			3 years 6 months		1 year 4 months 24 days
Advertiser relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount					$ 1,853
Accumulated Amortization					$ (1,853)
Net Carrying Amount
Weighted Average Remaining Life					0 years

GOODWILL AND INTANGIBLE ASSET43

GOODWILL AND INTANGIBLE ASSETS (Schedule of Future Amortization Expense) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Estimated future amortization expense:
2015 (from October 1, 2015)	$ 1,716
2,016	6,874
2,017	6,726
2,018	6,250
2,019	5,370
2020 and thereafter	14,132
Net Carrying Amount	$ 41,068	$ 5,786

ACCRUED LIABILITIES (Details)

ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ACCRUED LIABILITIES [Abstract]
Restaurant Payable	$ 10,938
Accrued vacation	5,717	$ 3,972
Accrued commissions	4,345	4,198
Accrued hosting	3,192	1,478
Accrued marketing	2,276	304
Accrued income, withholding and business taxes	1,434	1,354
Fixed asset purchase commitments	4,645	6,329
Accrued payroll tax	1,785	1,251
Merchant revenue share liability	1,440	1,218
Accrued employee related expenses	2,059	1,209
Accrued employee stock purchase plan liability	2,819	907
Accrued facilities and deferred rent	3,548	3,615
Other accrued expenses	5,048	3,746
Total	$ 49,246	$ 29,581

OTHER INCOME (EXPENSE), NET (De

OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
OTHER INCOME (EXPENSE), NET [Abstract]
Interest income	$ 472	$ 222	$ 903	$ 458
Transaction gain (loss) on foreign exchange	(713)	98	(621)	(79)
Other non-operating income (loss), net	(304)	(120)	64	(196)
Other income (expense), net	$ (545)	$ 200	$ 346	$ 183

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Office Facility Lease) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
COMMITMENTS AND CONTINGENCIES [Abstract]
Rental expense	$ 8.2	$ 3.5	$ 22.7	$ 10.8
Sublease rentals	0.5	$ 0	0.9	$ 0
Payroll tax liability	$ 0		$ 0

STOCKHOLDERS' EQUITY (Award Com

STOCKHOLDERS' EQUITY (Award Compensation Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 15,683	$ 10,918	$ 44,870	$ 30,457
Capitalized stock-based compensation	700	700	$ 2,200	1,600
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Exercisable period			10 years
Intrinsic value of options exercised	$ 1,600	$ 29,400	$ 23,200	$ 96,700
Weighted average grant date fair value	$ 18.76	$ 45.53	$ 25.19	$ 44.74
Unrecognized compensation costs	$ 38,000		$ 38,000
Unrecognized compensation costs, period for recognition			1 year 8 months 8 days
Stock options [Member] | End of year one [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			25.00%
Stock options [Member] | First year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			10.00%
Stock options [Member] | Second year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			20.00%
Stock options [Member] | Third year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			30.00%
Stock options [Member] | Fourth year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			40.00%
RSUs and RSAs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Unrecognized compensation costs	$ 116,500		$ 116,500
Unrecognized compensation costs, period for recognition			3 years 3 months 11 days
RSUs and RSAs [Member] | End of year one [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			25.00%
RSUs and RSAs [Member] | First year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			10.00%
RSUs and RSAs [Member] | Second year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			20.00%
RSUs and RSAs [Member] | Third year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			30.00%
RSUs and RSAs [Member] | Fourth year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate			40.00%
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Subscription rate of eligible compensation	15.00%		15.00%
Purchase price, percentage of fair market value			85.00%
Number of shares purchased	0	0	162,373	133,905
Weighted-average purchase price	$ 31.17	$ 30.52	$ 31.17	$ 30.52
Stock-based compensation	$ 1,100	$ 1,300	$ 3,800	$ 3,500

STOCKHOLDERS' EQUITY (Schedule

STOCKHOLDERS' EQUITY (Schedule of Stock by Class) (Details) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Stockholders' equity
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, Shares Authorized	500,000,000	500,000,000
Common stock, Shares Issued	75,442,578	72,920,582
Common stock, Shares Outstanding	75,442,578	72,920,582
Undesignated Preferred Stock, Shares Authorized	10,000,000	10,000,000
Undesignated Preferred Stock, Shares Issued
Undesignated Preferred Stock, Shares Outstanding
Class A common stock [Member]
Stockholders' equity
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, Shares Authorized	200,000,000	200,000,000
Common stock, Shares Issued	65,982,120	63,062,071
Common stock, Shares Outstanding	65,982,120	63,062,071
Class B common stock [Member]
Stockholders' equity
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, Shares Authorized	100,000,000	100,000,000
Common stock, Shares Issued	9,460,458	9,858,511
Common stock, Shares Outstanding	9,460,458	9,858,511
Common stock [Member]
Stockholders' equity
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, Shares Authorized	200,000,000	200,000,000
Common stock, Shares Issued
Common stock, Shares Outstanding

STOCKHOLDERS' EQUITY (Schedul49

STOCKHOLDERS' EQUITY (Schedule of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Number of Shares
Outstanding, beginning balance	9,037,935
Granted	388,450
Exercised	(728,413)
Canceled	(272,746)
Outstanding, ending balance	8,425,226	9,037,935
Options vested and expected to vest	8,335,939
Options vested and exercisable	5,552,729
Weighted Average Exercise Price
Outstanding, beginning balance	$ 19.64
Granted	50.30
Exercised	13.58
Canceled	40.69
Outstanding, ending balance	20.90	$ 19.64
Options vested and expected to vest	20.76
Options vested and exercisable	$ 15.73
Weighted Average Remaining Contractual Term, Outstanding	6 years 7 months 10 days	7 years 3 months 4 days
Weighted Average Remaining Contractual Term, Options vested and expected to vest	6 years 7 months 2 days
Weighted Average Remaining Contractual Term, Options vested and exercisable	6 years 3 months 14 days
Aggregate Intrinsic Value
Outstanding, beginning balance	$ 324,160
Outstanding, ending balance	50,067	$ 324,160
Options vested and expected to vest	50,011
Options vested and exercisable	$ 47,374

STOCKHOLDERS' EQUITY (Schedul50

STOCKHOLDERS' EQUITY (Schedule of Restricted Stock Awards and Restricted Stock Units Activity) (Details)	9 Months Ended
	Sep. 30, 2015$ / sharesshares
Restricted Stock Units [Member]
Number of Shares
Unvested, beginning balance | shares	1,131,849
Granted | shares	2,282,229
Released | shares	(244,151)
Canceled | shares	(360,481)
Unvested, ending balance | shares	2,809,446
Weighted-Average Grant Date Fair Value
Unvested, beginning balance	$ 64.96
Granted	44.72
Released	61.01
Canceled	56.85
Unvested, ending balance	$ 49.91
Restricted Stock Awards [Member]
Number of Shares
Unvested, beginning balance | shares	30,970
Granted | shares
Released | shares	(25,971)
Canceled | shares	(1,250)
Unvested, ending balance | shares	3,749
Weighted-Average Grant Date Fair Value
Unvested, beginning balance	$ 9.48
Granted
Released	$ 9.11
Canceled	11.40
Unvested, ending balance	$ 11.42

STOCKHOLDERS' EQUITY (Schedul51

STOCKHOLDERS' EQUITY (Schedule of Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 15,683	$ 10,918	$ 44,870	$ 30,457
Cost of revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	435	253	781	522
Sales and marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	5,568	3,883	16,159	11,008
Product development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	5,947	3,835	17,117	10,333
General and administration [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 3,733	$ 2,947	$ 10,813	$ 8,594

NET INCOME (LOSS) PER SHARE (Na

NET INCOME (LOSS) PER SHARE (Narrative) (Details)	9 Months Ended
	Sep. 30, 2015item
Common Class [Member]
Class of Stock [Line Items]
Voting rights	1
Common Class B [Member]
Class of Stock [Line Items]
Voting rights	10

NET INCOME (LOSS) PER SHARE (Sc

NET INCOME (LOSS) PER SHARE (Schedule of Basic and Diluted Net Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Allocation of undistributed earnings	$ (8,082)	$ 3,637	$ (10,671)	$ 3,745
Denominator:
Weighted-average shares outstanding	75,019	72,195	74,450	71,697
Basic net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Numerator:
Allocation of undistributed earnings for basic computation	$ (8,082)	$ 3,637	$ (10,671)	$ 3,745
Denominator:
Number of shares used in basic calculation	75,019	72,195	74,450	71,697
Weighted-average effect of dilutive securities
Number of shares used in diluted calculation	75,019	77,296	74,450	76,732
Diluted net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Class A [Member]
Numerator:
Allocation of undistributed earnings	$ (7,063)	$ 3,125	$ (9,298)	$ 3,190
Denominator:
Weighted-average shares outstanding	65,556	62,036	64,871	61,068
Basic net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Numerator:
Allocation of undistributed earnings for basic computation	$ (7,063)	$ 3,125	$ (9,298)	$ 3,190
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares		$ 512		$ 555
Reallocation of undistributed earnings to Class B shares
Allocation of undistributed earnings	$ (7,063)	$ 3,637	$ (9,298)	$ 3,745
Denominator:
Number of shares used in basic calculation	65,556	62,036	64,871	61,068
Weighted-average effect of dilutive securities
Conversion of Class B to Class A shares		10,159		10,629
Stock options		4,702		4,628
Other dilutive securities		399		407
Number of shares used in diluted calculation	65,556	77,296	64,871	76,732
Diluted net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Class B [Member]
Numerator:
Allocation of undistributed earnings	$ (1,019)	$ 512	$ (1,373)	$ 555
Denominator:
Weighted-average shares outstanding	9,463	10,159	9,579	10,629
Basic net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05
Numerator:
Allocation of undistributed earnings for basic computation	$ (1,019)	$ 512	$ (1,373)	$ 555
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares
Reallocation of undistributed earnings to Class B shares		$ 98		$ 100
Allocation of undistributed earnings	$ (1,019)	$ 610	$ (1,373)	$ 655
Denominator:
Number of shares used in basic calculation	9,463	10,159	9,579	10,629
Weighted-average effect of dilutive securities
Conversion of Class B to Class A shares
Stock options		2,761		2,746
Other dilutive securities		40		39
Number of shares used in diluted calculation	9,463	12,960	9,579	13,414
Diluted net income (loss) per share attributable to common stockholders	$ (0.11)	$ 0.05	$ (0.14)	$ 0.05

NET INCOME (LOSS) PER SHARE (54

NET INCOME (LOSS) PER SHARE (Schedule of Anti-Dilutive Employee Stock Awards) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	8,425	100	8,425	70
Restricted stock units and awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	2,813		2,813
Contingently Issuable Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	309		309

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
INCOME TAXES [Abstract]
Income tax provision (benefit)	$ (3,175)	$ 1,107	$ (3,894)	$ (495)
Income tax benefit discrete benefits			1,000
Income tax benefit due to the release of valuation allowance on foreign net operating losses				2,000
Income tax benefit due to U.S. federal and state income taxes and foreign income taxes			2,900	$ 1,500
Unrecognized tax benefits	3,800		3,800
Unrecognized tax benefits that would not impact the effective tax rate	100		$ 100
Unrecognized tax benefits increase	$ 200

INFORMATION ABOUT REVENUE AND56

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS (Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 143,559	$ 102,455	$ 395,980	$ 267,649
Local advertising [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	115,932	85,132	322,385	226,012
Transactions [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	11,973	1,338	29,883	3,830
Brand advertising [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	8,978	9,318	23,907	25,828
Other services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 6,676	$ 6,667	$ 19,805	$ 11,979

INFORMATION ABOUT REVENUE AND57

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS (Long-Lived Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 85,255	$ 79,244
Unites States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	79,548	73,344
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 5,707	$ 5,900