Yelp (YELP) 10-Q 3 Aug 15 2015 Q2 Quarterly report Financial data

DOCUMENT AND ENTITY INFORMATION

DOCUMENT AND ENTITY INFORMATION - shares	6 Months Ended
	Jun. 30, 2015	Jul. 24, 2015
Document Type	10-Q
Document Period End Date	Jun. 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	Q2
Entity Filer Category	Large Accelerated Filer
Class A common stock [Member]
Entity Common Stock, Shares Outstanding		65,797,617
Class B common stock [Member]
Entity Common Stock, Shares Outstanding		9,455,216

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 181,460	$ 247,312
Short-term marketable securities	186,673	118,498
Accounts receivable (net of allowance for doubtful accounts of $2,343 and $1,627 at June 30, 2015 and December 31, 2014, respectively)	41,339	35,593
Prepaid expenses and other current assets	22,713	19,355
Total current assets	$ 432,185	420,758
Long-term marketable securities		38,612
Property, equipment and software, net	$ 72,603	62,761
Goodwill	173,296	67,307
Intangibles, net	42,458	5,786
Restricted cash	16,285	17,943
Other assets	4,560	16,483
Total assets	741,387	629,650
Current liabilities:
Accounts payable	1,706	1,398
Accrued liabilities	37,716	29,581
Deferred revenue	2,546	2,994
Total current liabilities	41,968	33,973
Long-term liabilities	13,254	7,527
Total liabilities	$ 55,222	$ 41,500
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.000001 par value - 500,000,000 shares authorized; 75,232,705 and 72,920,582 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively
Additional paid-in capital	$ 734,867	$ 627,742
Accumulated other comprehensive loss	(12,130)	(5,609)
Accumulated deficit	(36,572)	(33,983)
Total stockholders' equity	686,165	588,150
Total liabilities and stockholders' equity	$ 741,387	$ 629,650

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Allowance for doubtful accounts	$ 2,343	$ 1,627
Common stock, par value	$ 0.000001	$ 0.000001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	75,232,705	72,920,582
Common stock, shares outstanding	75,232,705	72,920,582

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net revenue	$ 133,913	$ 88,787	$ 252,421	$ 165,194
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization shown separately below)	13,057	5,845	21,756	10,922
Sales and marketing	68,014	47,798	131,280	92,919
Product development	26,345	14,726	50,305	28,708
General and administrative	19,280	13,257	39,217	26,427
Depreciation and amortization	7,167	4,034	14,062	7,695
Total costs and expenses	133,863	85,660	256,620	166,671
Income (loss) from operations	50	3,127	(4,199)	(1,477)
Other income (expense), net	329	(15)	891	(17)
Income (loss) before income taxes	379	3,112	(3,308)	(1,494)
Benefit (provision) for income taxes	(1,684)	(369)	719	1,602
Net income (loss) attributable to common stockholders (Class A and B)	$ (1,305)	$ 2,743	$ (2,589)	$ 108
Net income (loss) per share attributable to common stockholders (Class A and Class B)
Basic	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Diluted	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Weighted-average shares used to compute net income (loss) per share attributable to common stockholders (Class A and Class B)
Basic	74,631	71,714	74,009	71,444
Diluted	74,631	77,056	74,009	76,903

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Net income (loss)	$ (1,305)	$ 2,743	$ (2,589)	$ 108
Other comprehensive income (loss):
Foreign currency translation adjustments	1,344	(338)	(6,521)	(422)
Other comprehensive income (loss)	1,344	(338)	(6,521)	(422)
Comprehensive income (loss)	$ 39	$ 2,405	$ (9,110)	$ (314)

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES:
Net income (loss)	$ (2,589)	$ 108
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	14,062	7,695
Provision for doubtful accounts and sales returns	6,076	2,581
Stock-based compensation	29,187	19,539
Loss (gain) on disposal of assets and website development costs	144	(5)
Premium amortization, net, on securities held-to-maturity	481	93
Excess tax benefit from stock-based award activity	(3,952)	(460)
Changes in operating assets and liabilities:
Accounts receivable	(7,855)	(6,716)
Prepaid expenses and other assets	(7,079)	(5,980)
Accounts payable, accrued expenses and long-term liabilities	15,616	3,567
Deferred revenue	(426)	(433)
Net cash provided by operating activities	43,665	$ 19,989
INVESTING ACTIVITIES:
Acquisition, net of cash received	(73,422)
Purchases of property, equipment and software	(18,059)	$ (7,212)
Capitalized website and software development costs	(6,012)	(4,327)
Proceeds from sale of property and equipment	109	$ 14
Purchases of intangible assets	(314)
Maturities of investment securities, held-to-maturity	63,870
Purchases of investment securities, held-to-maturity	(93,914)	$ (122,226)
Changes in restricted cash	1,672	(397)
Net cash used in investing activities	(126,070)	(134,148)
FINANCING ACTIVITIES:
Proceeds from exercise of employee stock options	8,534	10,841
Proceeds from issuance of common stock for Employee Stock Purchase Plan	5,061	4,087
Excess tax benefit from stock-based award activity	3,952	460
Repurchase of common stock	(396)	(642)
Net cash provided by financing activities	17,151	14,746
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(598)	35
CHANGE IN CASH AND CASH EQUIVALENTS	(65,852)	(99,378)
CASH AND CASH EQUIVALENTS-Beginning of period	247,312	389,764
CASH AND CASH EQUIVALENTS-End of period	181,460	290,386
SUPPLEMENTAL DISCLOSURES OF OTHER CASH FLOW INFORMATION:
Cash paid for income taxes, net of refunds	(4)	260
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Purchases of property and equipment recorded in accounts payable and accruals	2,046	1,185
Capitalized website and software development costs recorded in accounts payable and accruals	15	$ 25
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	6 Months Ended
	Jun. 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 to 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. 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	6 Months Ended
	Jun. 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 period ended June 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 June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash Equivalents: Money market funds $ 104,017 $ — $ — $ 104,017 $ 208,593 $ — $ — $ 208,593 Marketable Securities: U.S. government bonds 5,005 — — 5,005 5,005 — — 5,005 Commercial paper — 31,973 31,973 — 31,965 — 31,965 Corporate bonds — 20,082 20,082 — 29,486 — 29,486 Agency bonds — 129,615 129,615 — 90,575 — 90,575 Total cash equivalents and marketable securities $ 109,022 $ 181,670 $ — $ 290,692 $ 213,598 $ 152,026 $ — $ 365,624 Current liabilities: Contingent consideration liability $ — $ — $ 802 $ 802 $ — $ — $ 835 $ 835

MARKETABLE SECURITIES

MARKETABLE SECURITIES	6 Months Ended
	Jun. 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 June 30, 2015 and December 31, 2014 were as follows (in thousands): As of June 30, 2015 Gross Gross Unrealized Unrealized Amortized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,973 $ — $ — $ 31,973 Corporate bonds 20,085 1 (4 ) 20,082 Agency bonds 129,612 12 (9 ) 129,615 U.S. government bonds 5,003 2 — 5,005 Total marketable securities $ 186,673 $ 15 $ (13 ) $ 186,675 As of December 31, 2014 Gross Gross Unrealized Unrealized Amortized 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 June 30, 2015 and December 31, 2014 As of June 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 $ 13,069 $ (4 ) $ — $ — $ 13,069 $ (4 ) Agency bonds 55,529 (9 ) — — 55,529 (9 ) Total $ 68,598 $ (13 ) $ — $ — $ 68,598 $ (13) 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 six months ended June 30, 2015 and 2014, the Company did not recognize any other-than-temporary impairment loss.

ACQUISITIONS

ACQUISITIONS	6 Months Ended
	Jun. 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 June 30, 2015, the Company recorded no acquisition-related transaction costs and for the six-months ended June 30, 2015, the Company recorded approximately $ 0.2 acquisition-related transaction costs 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 June 30 Six Months Ended 2015 2014 2015 2014 Revenue $ 133,915 94,653 $ 255,668 176,513 Net income (loss) $ ( 1,304 ) 2,646 $ (3,705 ) (872 ) Basic net income (loss) per share attributable to common stockholders $ ( 0.02 ) 0.04 $ (0.05 ) (0.01 ) Diluted net income (loss) per share attributable to common stockholders $ ( 0.02 ) 0.03 $ (0.05 ) (0.01 ) The consolidated statements of operations for the three and six months ended June 30, 2015 include $ 5.3 10.1 2014 Acquisitions In October 0.1 0.6 Under the Restaurant Kritik asset purchase agreement, the Company agreed to pay an additional $ 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	6 Months Ended
	Jun. 30, 2015
CASH AND CASH EQUIVALENTS [Abstract]
CASH AND CASH EQUIVALENTS	5. CASH AND CASH EQUIVALENTS Cash and cash equivalents as of June 30, 2015 and December 31, 2014 consist of the following (in thousands): June 30, December 31, 2015 2014 Cash and cash equivalents Cash $ 77,443 $ 38,719 Money market funds 104,017 208,593 Total cash and cash equivalents $ 181,460 $ 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 June 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	6 Months Ended
	Jun. 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 June 30, 2015 and December 31, 2014 consist of the following (in thousands): June 30, December 31, 2015 2014 Computer equipment $ 22,247 $ 19,111 Software 831 802 Capitalized website and internal-use software development costs 34,997 27,602 Furniture and fixtures 9,029 6,621 Leasehold improvements 41,361 36,991 Telecommunication 2,644 2,610 Total 111,109 93,737 Less accumulated depreciation (38,506 ) (30,976 ) Property, equipment and software, net $ 72,603 $ 62,761 Depreciation expense was approximately $ 5.3 3.1 10.9 5.9

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	6 Months Ended
	Jun. 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 changes in the carrying amount of goodwill during the six months ended June 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 (4,989 ) Balance as of June 30, 2015 $ 173,296 Intangible assets at June 30, 2015 and December 31, 2014 Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life June 30, 2015: Restaurant and user relationships $ 29,400 $ (1,235 ) $ 28,165 9.6 Developed and acquired technology 9,305 (1,602 ) 7,703 4.5 Content 4,037 (1,724 ) 2,313 3.2 Data licenses and domains 2,291 (600 ) 1,691 4.2 Trade name and other 3,356 (770 ) 2,586 3.5 Total $ 48,389 $ (5,931 ) $ 42,458 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 $ 1.8 0.6 3.0 1.3 As of June 30, 2015, the estimated future amortization of purchased intangible assets for (i) the remaining six 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 July 1, 2015) $ 3,414 2016 6,807 2017 6,660 2018 6,181 2019 5,299 2020 and thereafter 14,097 Total amortization $ 42,458

ACCRUED LIABILITIES

ACCRUED LIABILITIES	6 Months Ended
	Jun. 30, 2015
ACCRUED LIABILITIES [Abstract]
ACCRUED LIABILITIES	8. ACCRUED LIABILITIES Accrued liabilities as of June 30, 2015 and December 31, 2014 consist of the following (in thousands): June 30, 2015 December 31, 2014 Restaurant payable $ 9,363 $ — Accrued vacation 5,685 3,972 Accrued commissions 4,028 4,198 Accrued hosting 1,436 1,478 Accrued income, withholding and business taxes 1,971 1,354 Fixed asset purchase commitments 1,886 6,329 Accrued payroll tax 1,650 1,251 Merchant revenue share liability 1,219 1,218 Accrued employee related expenses 1,194 1,209 Accrued employee stock purchase plan liability 791 907 Deferred rent 691 1,229 Other accrued expenses 7,802 6,436 Total $ 37,716 $ 29,581

OTHER INCOME (EXPENSE), NET

OTHER INCOME (EXPENSE), NET	6 Months Ended
	Jun. 30, 2015
OTHER INCOME (EXPENSE), NET [Abstract]
OTHER INCOME (EXPENSE), NET	9. OTHER INCOME (EXPENSE), NET Other income (expense), net for the three and six months ended June 30, 2015 and 2014 consist of the following (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Interest income $ 131 $ 202 $ 431 $ 236 Transaction gain (loss) on foreign exchange 263 ) (128 ) 92 (177 ) Other non-operating income (loss), net (65 ) (89 ) 368 (76 ) Other income (expense) $ 329 $ (15 ) $ 891 $ (17 )

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 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 $ 7.6 3.7 14.5 7.3 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 scheduled for September 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 plaintiffs seek monetary damages and penalties in unspecified amounts, as well as injunctive relief. 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.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 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: June 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 65,753,489 200,000,000 63,062,071 Class B common stock, $ 0.000001 100,000,000 9,479,216 100,000,000 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 either 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 316,450 52.09 Exercised (619,037 ) 13.79 Canceled (172,968 ) 40.62 Outstanding – June 30, 2015 8,562,380 $ 20.84 6.86 $ 204,722 Options vested and expected to vest as of June 30, 2015 8,338,298 $ 20.44 6.83 $ 201,870 Options vested and exercisable as of June 30, 2015 5,142,755 $ 15.10 6.29 $ 147,623 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 $ 11.0 15.3 21.2 67.3 The weighted-average grant date fair value of options granted was $ 20.64 41.30 26.65 44.73 As of June 30, 2015, total unrecognized compensation costs, adjusted for estimated forfeitures, related to unvested stock options was approximately $ 47.0 1.79 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 either over a four 25 10 20 30 40 Restricted Stock Units Restricted Stock Awards Weighted- Average Weighted- 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 1,461,327 49.09 — — Released (134,009 ) 59.57 (19,062 ) 9.12 Canceled (201,377 ) 61.25 (1,250 ) 11.40 Unvested—June 30, 2015 2,257,790 $ 55.33 10,658 $ 9.90 As of June 30, 2015, the Company had approximately $ 107.3 3.32 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 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 $ 1.3 1.1 2.7 2.2 Stock-Based Compensation The following table summarizes the effects of stock-based compensation related to stock-based awards in the condensed consolidated statements of operations during the periods presented (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Cost of revenue $ 222 $ 119 $ 346 $ 269 Sales and marketing 5,654 3,728 10,591 7,125 Product development 6,065 3,456 11,170 6,498 General and administrative 3,575 2,780 7,080 5,647 Total stock-based compensation $ 15,516 $ 10,083 $ 29,187 $ 19,539 The Company capitalized stock-based compensation as website development costs of $ 0.8 0.5 1.6 0.8

NET INCOME (LOSS) PER SHARE

NET INCOME (LOSS) PER SHARE	6 Months Ended
	Jun. 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 June 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 $ (1,138 ) $ (167 ) $ 2,341 $ 402 Denominator: Weighted-average shares outstanding 65,107 9,524 61,208 10,506 Basic net income (loss) per share attributable to common stockholders $ (0.02 ) $ (0.02 ) $ 0.04 $ 0.04 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (1,138 ) $ (167 ) $ 2,341 $ 402 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 402 — Reallocation of undistributed earnings to Class B shares — — — 79 Allocation of undistributed earnings $ (1,138 ) $ (167 ) $ 2,743 $ 481 Denominator: Number of shares used in basic calculation 65,107 9,524 61,208 10,506 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,506 — Stock options — — 4,963 2,959 Other dilutive securities — — 379 48 Number of shares used in diluted calculation 65,107 9,524 77,056 13,513 Diluted net income (loss) per share attributable to common stockholders $ (0.02 ) $ (0.02 ) $ 0.04 $ 0.04 Six Months Ended June 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 $ (2,252 ) $ (337 ) $ 92 $ 16 Denominator: Weighted-average common shares outstanding 64,363 9,646 60,576 10,868 Basic net income (loss) per share attributable to common stockholders $ (0.03 ) $ (0.03 ) $ 0.00 $ 0.00 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (2,252 ) $ (337 ) $ 92 $ 16 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 16 — Reallocation of undistributed earnings to Class B shares — — — 4 Allocation of undistributed earnings $ (2,252 ) $ (337 ) $ 108 $ 20 Denominator: Number of shares used in basic calculation 64,363 9,646 60,576 10,868 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,868 — Stock options — — 5,146 3,000 Other dilutive securities — — 313 48 Number of shares used in diluted calculation 64,363 9,646 76,903 13,916 Diluted net income (loss) per share attributable to common stockholders $ (0.03 ) $ (0.03 ) $ 0.00 $ 0.00 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 Six Months Ended June 30, June 30, 2015 2014 2015 2014 Stock options 8,562 411 8,562 86 Restricted stock units 2,258 — 2,258 — Restricted stock awards 11 — 11 — Employee stock purchase plan 22 — 22 —

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 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 provision of $ 1.7 0.4 0.7 1.6 The tax benefit for the six months ended June 30, 2015 is due to 0.7 The tax benefit for the six months ended June 30, 2014 is due to recognition of an income tax benefit of approximately $ 2.0 0.4 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 June 30, 2015, the total amount of gross unrecognized tax benefits was $ 3.6 0.1 0.2 The Company does not have any tax positions as of June 30, 2015 for which it is reasonably possible that the total amount of gross unrecognized tax benefits will significantly increase or decrease within the next 12 months.

INFORMATION ABOUT REVENUE AND G

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS	6 Months Ended
	Jun. 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. During the three months ended June 30, 2015 the Company began tracking revenue for the transactions product line consisting 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. 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. 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 Six Months Ended June 30, June 30, 2015 2014 2015 2014 Net revenue by product: Local advertising $ 107,882 $ 75,685 $ 206,452 $ 140,880 Transactions 11,304 1,228 17,910 2,492 Brand advertising 8,303 9,055 14,930 16,510 Other services 6,424 2,819 13,129 5,312 Total net revenue $ 133,913 $ 88,787 $ 252,421 $ 165,194 During the three and six months Long-Lived Assets June 30, December 31, 2015 2014 United States $ 71,483 $ 73,344 All Other Countries 5,680 5,900 Total long-lived assets $ 77,163 $ 79,244

DESCRIPTION OF BUSINESS AND B21

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Policy)	6 Months Ended
	Jun. 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 to 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.
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)	6 Months Ended
	Jun. 30, 2015
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value	June 30, 2015 December 31, 2014 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash Equivalents: Money market funds $ 104,017 $ — $ — $ 104,017 $ 208,593 $ — $ — $ 208,593 Marketable Securities: U.S. government bonds 5,005 — — 5,005 5,005 — — 5,005 Commercial paper — 31,973 31,973 — 31,965 — 31,965 Corporate bonds — 20,082 20,082 — 29,486 — 29,486 Agency bonds — 129,615 129,615 — 90,575 — 90,575 Total cash equivalents and marketable securities $ 109,022 $ 181,670 $ — $ 290,692 $ 213,598 $ 152,026 $ — $ 365,624 Current liabilities: Contingent consideration liability $ — $ — $ 802 $ 802 $ — $ — $ 835 $ 835

MARKETABLE SECURITIES (Tables)

MARKETABLE SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2015
MARKETABLE SECURITIES [Abstract]
Schedule of the Fair Value to Amortized Cost Basis of Securities Held-to-Maturity	As of June 30, 2015 Gross Gross Unrealized Unrealized Amortized Cost Gains Losses Fair Value Short-term marketable securities : Commercial paper $ 31,973 $ — $ — $ 31,973 Corporate bonds 20,085 1 (4 ) 20,082 Agency bonds 129,612 12 (9 ) 129,615 U.S. government bonds 5,003 2 — 5,005 Total marketable securities $ 186,673 $ 15 $ (13 ) $ 186,675 As of December 31, 2014 Gross Gross Unrealized Unrealized Amortized 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 June 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 $ 13,069 $ (4 ) $ — $ — $ 13,069 $ (4 ) Agency bonds 55,529 (9 ) — — 55,529 (9 ) Total $ 68,598 $ (13 ) $ — $ — $ 68,598 $ (13) 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)	6 Months Ended
	Jun. 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 June 30 Six Months Ended 2015 2014 2015 2014 Revenue $ 133,915 94,653 $ 255,668 176,513 Net income (loss) $ ( 1,304 ) 2,646 $ (3,705 ) (872 ) Basic net income (loss) per share attributable to common stockholders $ ( 0.02 ) 0.04 $ (0.05 ) (0.01 ) Diluted net income (loss) per share attributable to common stockholders $ ( 0.02 ) 0.03 $ (0.05 ) (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)	6 Months Ended
	Jun. 30, 2015
CASH AND CASH EQUIVALENTS [Abstract]
Schedule of Cash and Cash Equivalents	June 30, December 31, 2015 2014 Cash and cash equivalents Cash $ 77,443 $ 38,719 Money market funds 104,017 208,593 Total cash and cash equivalents $ 181,460 $ 247,312

PROPERTY, EQUIPMENT, AND SOFTWA

PROPERTY, EQUIPMENT, AND SOFTWARE, NET (Tables)	6 Months Ended
	Jun. 30, 2015
PROPERTY, EQUIPMENT AND SOFTWARE, NET [Abstract]
Schedule of Property, Equipment and Software	June 30, December 31, 2015 2014 Computer equipment $ 22,247 $ 19,111 Software 831 802 Capitalized website and internal-use software development costs 34,997 27,602 Furniture and fixtures 9,029 6,621 Leasehold improvements 41,361 36,991 Telecommunication 2,644 2,610 Total 111,109 93,737 Less accumulated depreciation (38,506 ) (30,976 ) Property, equipment and software, net $ 72,603 $ 62,761

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 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 (4,989 ) Balance as of June 30, 2015 $ 173,296
Schedule of Intangible Assets	Weighted Gross Net Average Carrying Accumulated Carrying Remaining Amount Amortization Amount Life June 30, 2015: Restaurant and user relationships $ 29,400 $ (1,235 ) $ 28,165 9.6 Developed and acquired technology 9,305 (1,602 ) 7,703 4.5 Content 4,037 (1,724 ) 2,313 3.2 Data licenses and domains 2,291 (600 ) 1,691 4.2 Trade name and other 3,356 (770 ) 2,586 3.5 Total $ 48,389 $ (5,931 ) $ 42,458 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 July 1, 2015) $ 3,414 2016 6,807 2017 6,660 2018 6,181 2019 5,299 2020 and thereafter 14,097 Total amortization $ 42,458

ACCRUED LIABILITIES (Tables)

ACCRUED LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2015
ACCRUED LIABILITIES [Abstract]
Schedule of Accrued Liabilities	June 30, 2015 December 31, 2014 Restaurant payable $ 9,363 $ — Accrued vacation 5,685 3,972 Accrued commissions 4,028 4,198 Accrued hosting 1,436 1,478 Accrued income, withholding and business taxes 1,971 1,354 Fixed asset purchase commitments 1,886 6,329 Accrued payroll tax 1,650 1,251 Merchant revenue share liability 1,219 1,218 Accrued employee related expenses 1,194 1,209 Accrued employee stock purchase plan liability 791 907 Deferred rent 691 1,229 Other accrued expenses 7,802 6,436 Total $ 37,716 $ 29,581

OTHER INCOME (EXPENSE), NET (Ta

OTHER INCOME (EXPENSE), NET (Tables)	6 Months Ended
	Jun. 30, 2015
OTHER INCOME (EXPENSE), NET [Abstract]
Schedule of Other Income (Expense)	Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Interest income $ 131 $ 202 $ 431 $ 236 Transaction gain (loss) on foreign exchange 263 ) (128 ) 92 (177 ) Other non-operating income (loss), net (65 ) (89 ) 368 (76 ) Other income (expense) $ 329 $ (15 ) $ 891 $ (17 )

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2015
STOCKHOLDERS' EQUITY [Abstract]
Schedule of Stock by Class	June 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 65,753,489 200,000,000 63,062,071 Class B common stock, $ 0.000001 100,000,000 9,479,216 100,000,000 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 316,450 52.09 Exercised (619,037 ) 13.79 Canceled (172,968 ) 40.62 Outstanding – June 30, 2015 8,562,380 $ 20.84 6.86 $ 204,722 Options vested and expected to vest as of June 30, 2015 8,338,298 $ 20.44 6.83 $ 201,870 Options vested and exercisable as of June 30, 2015 5,142,755 $ 15.10 6.29 $ 147,623
Summary of RSUs and RSAs Activity	Restricted Stock Units Restricted Stock Awards Weighted- Average Weighted- 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 1,461,327 49.09 — — Released (134,009 ) 59.57 (19,062 ) 9.12 Canceled (201,377 ) 61.25 (1,250 ) 11.40 Unvested—June 30, 2015 2,257,790 $ 55.33 10,658 $ 9.90
Schedule of Stock Compensation Expense	Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Cost of revenue $ 222 $ 119 $ 346 $ 269 Sales and marketing 5,654 3,728 10,591 7,125 Product development 6,065 3,456 11,170 6,498 General and administrative 3,575 2,780 7,080 5,647 Total stock-based compensation $ 15,516 $ 10,083 $ 29,187 $ 19,539

NET INCOME (LOSS) PER SHARE (Ta

NET INCOME (LOSS) PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2015
NET INCOME (LOSS) PER SHARE [Abstract]
Schedule of Earnings Per Share	Three Months Ended June 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 $ (1,138 ) $ (167 ) $ 2,341 $ 402 Denominator: Weighted-average shares outstanding 65,107 9,524 61,208 10,506 Basic net income (loss) per share attributable to common stockholders $ (0.02 ) $ (0.02 ) $ 0.04 $ 0.04 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (1,138 ) $ (167 ) $ 2,341 $ 402 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 402 — Reallocation of undistributed earnings to Class B shares — — — 79 Allocation of undistributed earnings $ (1,138 ) $ (167 ) $ 2,743 $ 481 Denominator: Number of shares used in basic calculation 65,107 9,524 61,208 10,506 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,506 — Stock options — — 4,963 2,959 Other dilutive securities — — 379 48 Number of shares used in diluted calculation 65,107 9,524 77,056 13,513 Diluted net income (loss) per share attributable to common stockholders $ (0.02 ) $ (0.02 ) $ 0.04 $ 0.04 Six Months Ended June 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 $ (2,252 ) $ (337 ) $ 92 $ 16 Denominator: Weighted-average common shares outstanding 64,363 9,646 60,576 10,868 Basic net income (loss) per share attributable to common stockholders $ (0.03 ) $ (0.03 ) $ 0.00 $ 0.00 Diluted net income (loss) per share attributable to common stockholders: Numerator: Allocation of undistributed earnings for basic computation $ (2,252 ) $ (337 ) $ 92 $ 16 Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares — — 16 — Reallocation of undistributed earnings to Class B shares — — — 4 Allocation of undistributed earnings $ (2,252 ) $ (337 ) $ 108 $ 20 Denominator: Number of shares used in basic calculation 64,363 9,646 60,576 10,868 Weighted-average effect of dilutive securities Conversion of Class B to Class A shares — — 10,868 — Stock options — — 5,146 3,000 Other dilutive securities — — 313 48 Number of shares used in diluted calculation 64,363 9,646 76,903 13,916 Diluted net income (loss) per share attributable to common stockholders $ (0.03 ) $ (0.03 ) $ 0.00 $ 0.00
Schedule of Anti-dilutive Securities	Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Stock options 8,562 411 8,562 86 Restricted stock units 2,258 — 2,258 — Restricted stock awards 11 — 11 — Employee stock purchase plan 22 — 22 —

INFORMATION ABOUT REVENUE AND32

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS (Tables)	6 Months Ended
	Jun. 30, 2015
INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS [Abstract]
Schedule of Revenue by Product Line	Three Months Ended Six Months Ended June 30, June 30, 2015 2014 2015 2014 Net revenue by product: Local advertising $ 107,882 $ 75,685 $ 206,452 $ 140,880 Transactions 11,304 1,228 17,910 2,492 Brand advertising 8,303 9,055 14,930 16,510 Other services 6,424 2,819 13,129 5,312 Total net revenue $ 133,913 $ 88,787 $ 252,421 $ 165,194
Schedule of Long-Lived Assets by Geographic Region	June 30, December 31, 2015 2014 United States $ 71,483 $ 73,344 All Other Countries 5,680 5,900 Total long-lived assets $ 77,163 $ 79,244

FAIR VALUE OF FINANCIAL INSTR33

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 104,017	$ 208,593
Marketable securities		157,030
Total cash equivalents and marketable securities	290,692	365,624
Contingent consideration liability	802	835
U.S. government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	5,005	5,005
Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	31,973	31,965
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	20,082	29,486
Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	129,615	90,575
Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	104,017	208,593
Total cash equivalents and marketable securities	$ 109,022	$ 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	$ 5,005	$ 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	$ 181,670	$ 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	$ 31,973	$ 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	20,082	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	$ 129,615	$ 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	$ 802	$ 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	Jun. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost		$ 157,110
Gross Unrealized Gains		2
Gross Unrealized Losses		(82)
Fair Value		157,030
Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 186,673	118,498
Gross Unrealized Gains	15	2
Gross Unrealized Losses	(13)	(59)
Fair Value	186,675	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	31,973	31,965
Commercial paper [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 31,973	$ 31,964
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	$ 31,973	$ 31,964
Corporate bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	20,082	29,486
Corporate bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	20,085	24,397
Gross Unrealized Gains	1	1
Gross Unrealized Losses	(4)	(31)
Fair Value	20,082	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	129,615	90,575
Agency bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	129,612	57,130
Gross Unrealized Gains	12	1
Gross Unrealized Losses	(9)	(26)
Fair Value	129,615	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	5,005	5,005
U.S. government bonds [Member] | Short-term marketable securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,003	$ 5,007
Gross Unrealized Gains	$ 2
Gross Unrealized Losses		$ (2)
Fair Value	$ 5,005	$ 5,005

MARKETABLE SECURITIES (Schedu35

MARKETABLE SECURITIES (Schedule of Securities in an Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value
Less than 12 months	$ 68,598	$ 109,008
12 months or greater
Total	$ 68,598	$ 109,008
Unrealized Loss
Less than 12 months	$ (13)	$ (82)
12 months or greater
Total	$ (13)	$ (82)
Corporate bonds [Member]
Fair Value
Less than 12 months	$ 13,069	$ 24,439
12 months or greater
Total	$ 13,069	$ 24,439
Unrealized Loss
Less than 12 months	$ (4)	$ (32)
12 months or greater
Total	$ (4)	$ (32)
Agency bonds [Member]
Fair Value
Less than 12 months	$ 55,529	$ 79,564
12 months or greater
Total	$ 55,529	$ 79,564
Unrealized Loss
Less than 12 months	$ (9)	$ (48)
12 months or greater
Total	$ (9)	$ (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) - USD ($)	Feb. 09, 2015	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Contingent liability		$ 802,000	$ 802,000		$ 835,000
Fair value of purchase consideration:
Net cash consideration			73,422,000
Fair value of net assets acquired:
Goodwill		173,296,000	173,296,000		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	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	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
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	6 Months Ended	12 Months Ended
	Jun. 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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Revenue	$ 133,915	$ 94,653	$ 255,668	$ 176,513
Net income (loss)	$ 1,304	$ 2,646	$ (3,705)	$ (872)
Basic net income (loss) per share attributable to common stockholders	$ 0.02	$ 0.04	$ (0.05)	$ (0.01)
Diluted net income (loss) per share attributable to common stockholders	$ 0.02	$ 0.03	$ (0.05)	$ (0.01)
Net loss attributable to Eat24	$ 5,300		$ 10,100

CASH AND CASH EQUIVALENTS (Deta

CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Cash and cash equivalents
Cash	$ 77,443	$ 38,719
Money market funds	104,017	208,593
Total cash and cash equivalents	181,460	247,312	$ 290,386	$ 389,764
Restricted cash related to letters of credit	$ 16,285	$ 17,943

PROPERTY, EQUIPMENT AND SOFTW40

PROPERTY, EQUIPMENT AND SOFTWARE, NET (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
PROPERTY, EQUIPMENT AND SOFTWARE, NET [Abstract]
Depreciation expense	$ 5,300	$ 3,100	$ 10,900	$ 5,900
Property, Plant and Equipment [Line Items]
Property, equipment and software	111,109		111,109		$ 93,737
Less accumulated depreciation	(38,506)		(38,506)		(30,976)
Property, equipment and software, net	72,603		72,603		62,761
Computer equipment [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	22,247		22,247		19,111
Software [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	831		831		802
Capitalized website and internal-use software development costs [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	34,997		34,997		27,602
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	9,029		9,029		6,621
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	41,361		41,361		36,991
Telecommunication [Member]
Property, Plant and Equipment [Line Items]
Property, equipment and software	$ 2,644		$ 2,644		$ 2,610

GOODWILL AND INTANGIBLE ASSET41

GOODWILL AND INTANGIBLE ASSETS (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Balance	$ 67,307
Goodwill measurement period adjustment	51
Goodwill acquired	110,927
Effect of currency translation	(4,989)
Balance	$ 173,296

GOODWILL AND INTANGIBLE ASSET42

GOODWILL AND INTANGIBLE ASSETS (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
GOODWILL AND INTANGIBLE ASSETS [Abstract]
Amortization expense	$ 1,800	$ 600	$ 3,000	$ 1,300
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48,389		48,389		$ 10,688
Accumulated Amortization	(5,931)		(5,931)		(4,902)
Net Carrying Amount	42,458		42,458		5,786
Restaurant and user relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,400		29,400
Accumulated Amortization	(1,235)		(1,235)
Net Carrying Amount	28,165		$ 28,165
Weighted Average Remaining Life			9 years 7 months 6 days
Developed and acquired technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,305		$ 9,305		1,963
Accumulated Amortization	(1,602)		(1,602)		(861)
Net Carrying Amount	7,703		$ 7,703		$ 1,102
Weighted Average Remaining Life			4 years 6 months		4 years 2 months 12 days
Content [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,037		$ 4,037		$ 4,299
Accumulated Amortization	(1,724)		(1,724)		(1,393)
Net Carrying Amount	2,313		$ 2,313		$ 2,906
Weighted Average Remaining Life			3 years 2 months 12 days		3 years 7 months 6 days
Data licenses and domains [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,291		$ 2,291		$ 1,977
Accumulated Amortization	(600)		(600)		(326)
Net Carrying Amount	1,691		$ 1,691		$ 1,651
Weighted Average Remaining Life			4 years 2 months 12 days		4 years 6 months
Trade name and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,356		$ 3,356		$ 596
Accumulated Amortization	(770)		(770)		(469)
Net Carrying Amount	$ 2,586		$ 2,586		$ 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

GOODWILL AND INTANGIBLE ASSET43

GOODWILL AND INTANGIBLE ASSETS (Schedule of Future Amortization Expense) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Estimated future amortization expense:
2015 (from July 1, 2015)	$ 3,414
2,016	6,807
2,017	6,660
2,018	6,181
2,019	5,299
2020 and thereafter	14,097
Net Carrying Amount	$ 42,458	$ 5,786

ACCRUED LIABILITIES (Details)

ACCRUED LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ACCRUED LIABILITIES [Abstract]
Restaurant payable	$ 9,363
Accrued vacation	5,685	$ 3,972
Accrued commissions	4,028	4,198
Accrued hosting	1,436	1,478
Accrued income, withholding and business taxes	1,971	1,354
Fixed asset purchase commitments	1,886	6,329
Accrued payroll tax	1,650	1,251
Merchant revenue share liability	1,219	1,218
Accrued employee related expenses	1,194	1,209
Accrued employee stock purchase plan liability	791	907
Deferred rent	691	1,229
Other accrued expenses	7,802	6,436
Total	$ 37,716	$ 29,581

OTHER INCOME (EXPENSE), NET (De

OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
OTHER INCOME (EXPENSE), NET [Abstract]
Interest income	$ 131	$ 202	$ 431	$ 236
Transaction gain (loss) on foreign exchange	263	(128)	92	(177)
Other non-operating income (loss), net	(65)	(89)	368	(76)
Other income (expense), net	$ 329	$ (15)	$ 891	$ (17)

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Office Facility Lease) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
COMMITMENTS AND CONTINGENCIES [Abstract]
Rental expense	$ 7.6	$ 3.7	$ 14.5	$ 7.3

STOCKHOLDERS' EQUITY (Award Com

STOCKHOLDERS' EQUITY (Award Compensation Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 15,516	$ 10,083	$ 29,187	$ 19,539
Capitalized stock-based compensation	800	500	$ 1,600	800
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	$ 11,000	$ 15,300	$ 21,200	$ 67,300
Weighted average grant date fair value	$ 20.64	$ 41.30	$ 26.65	$ 44.73
Unrecognized compensation costs	$ 47,000		$ 47,000
Unrecognized compensation costs, period for recognition			1 year 9 months 14 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	$ 107,300		$ 107,300
Unrecognized compensation costs, period for recognition			3 years 3 months 25 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	162,373	133,905	162,373	133,905
Weighted-average purchase price	$ 31.17	$ 30.52	$ 31.17	$ 30.52
Stock-based compensation	$ 1,300	$ 1,100	$ 2,700	$ 2,200

STOCKHOLDERS' EQUITY (Schedule

STOCKHOLDERS' EQUITY (Schedule of Stock by Class) (Details) - $ / shares	Jun. 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	75,232,705	72,920,582
Common stock, Shares Outstanding	75,232,705	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	65,753,489	63,062,071
Common stock, Shares Outstanding	65,753,489	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	9,479,216	9,858,511
Common stock, Shares Outstanding	9,479,216	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	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Number of Shares
Outstanding, beginning balance	9,037,935
Granted	316,450
Exercised	(619,037)
Canceled	(172,968)
Outstanding, ending balance	8,562,380	9,037,935
Options vested and expected to vest	8,338,298
Options vested and exercisable	5,142,755
Weighted Average Exercise Price
Outstanding, beginning balance	$ 19.64
Granted	52.09
Exercised	13.79
Canceled	40.62
Outstanding, ending balance	20.84	$ 19.64
Options vested and expected to vest	20.44
Options vested and exercisable	$ 15.10
Weighted Average Remaining Contractual Term, Outstanding	6 years 10 months 10 days	7 years 3 months 4 days
Weighted Average Remaining Contractual Term, Options vested and expected to vest	6 years 9 months 29 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	204,722	$ 324,160
Options vested and expected to vest	201,870
Options vested and exercisable	$ 147,623

STOCKHOLDERS' EQUITY (Schedul50

STOCKHOLDERS' EQUITY (Schedule of Restricted Stock Awards and Restricted Stock Units Activity) (Details) - 6 months ended Jun. 30, 2015 - $ / shares	Total
Restricted Stock Units [Member]
Number of Shares
Unvested, beginning balance	1,131,849
Granted	1,461,327
Released	(134,009)
Canceled	(201,377)
Unvested, ending balance	2,257,790
Weighted-Average Grant Date Fair Value
Unvested, beginning balance	$ 64.96
Granted	49.09
Released	59.57
Canceled	61.25
Unvested, ending balance	$ 55.33
Restricted Stock Awards [Member]
Number of Shares
Unvested, beginning balance	30,970
Granted
Released	(19,062)
Canceled	(1,250)
Unvested, ending balance	10,658
Weighted-Average Grant Date Fair Value
Unvested, beginning balance	$ 9.48
Granted
Released	$ 9.12
Canceled	11.40
Unvested, ending balance	$ 9.90

STOCKHOLDERS' EQUITY (Schedul51

STOCKHOLDERS' EQUITY (Schedule of Stock-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 15,516	$ 10,083	$ 29,187	$ 19,539
Cost of revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	222	119	346	269
Sales and marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	5,654	3,728	10,591	7,125
Product development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	6,065	3,456	11,170	6,498
General and administration [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 3,575	$ 2,780	$ 7,080	$ 5,647

NET INCOME (LOSS) PER SHARE (Na

NET INCOME (LOSS) PER SHARE (Narrative) (Details)	6 Months Ended
	Jun. 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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator:
Allocation of undistributed earnings	$ (1,305)	$ 2,743	$ (2,589)	$ 108
Denominator:
Weighted-average shares outstanding	74,631	71,714	74,009	71,444
Basic net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Numerator:
Allocation of undistributed earnings for basic computation	$ (1,305)	$ 2,743	$ (2,589)	$ 108
Denominator:
Number of shares used in basic calculation	74,631	71,714	74,009	71,444
Weighted-average effect of dilutive securities
Number of shares used in diluted calculation	74,631	77,056	74,009	76,903
Diluted net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Class A [Member]
Numerator:
Allocation of undistributed earnings	$ (1,138)	$ 2,341	$ (2,252)	$ 92
Denominator:
Weighted-average shares outstanding	65,107	61,208	64,363	60,576
Basic net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Numerator:
Allocation of undistributed earnings for basic computation	$ (1,138)	$ 2,341	$ (2,252)	$ 92
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares		$ 402		$ 16
Reallocation of undistributed earnings to Class B shares
Allocation of undistributed earnings	$ (1,138)	$ 2,743	$ (2,252)	$ 108
Denominator:
Number of shares used in basic calculation	65,107	61,208	64,363	60,576
Weighted-average effect of dilutive securities
Conversion of Class B to Class A shares		10,506		10,868
Stock options		4,963		5,146
Other dilutive securities		379		313
Number of shares used in diluted calculation	65,107	77,056	64,363	76,903
Diluted net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Class B [Member]
Numerator:
Allocation of undistributed earnings	$ (167)	$ 402	$ (337)	$ 16
Denominator:
Weighted-average shares outstanding	9,524	10,506	9,646	10,868
Basic net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0
Numerator:
Allocation of undistributed earnings for basic computation	$ (167)	$ 402	$ (337)	$ 16
Reallocation of undistributed earnings as a result of conversion of Class B to Class A shares
Reallocation of undistributed earnings to Class B shares		$ 79		$ 4
Allocation of undistributed earnings	$ (167)	$ 481	$ (337)	$ 20
Denominator:
Number of shares used in basic calculation	9,524	10,506	9,646	10,868
Weighted-average effect of dilutive securities
Conversion of Class B to Class A shares
Stock options		2,959		3,000
Other dilutive securities		48		48
Number of shares used in diluted calculation	9,524	13,513	9,646	13,916
Diluted net income (loss) per share attributable to common stockholders	$ (0.02)	$ 0.04	$ (0.03)	$ 0

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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	8,562	411	8,562	86
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	2,258		2,258
Restricted Stock Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	11		11
Employee stock purchase plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive awards	22		22

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
INCOME TAXES [Abstract]
Income tax provision (benefit)	$ 1,684	$ 369	$ (719)	$ (1,602)
Income tax benefit discrete benefits			700
Income tax benefit due to the release of valuation allowance on foreign net operating losses			2,000
Income tax benefit due to foreign income taxes and state minimum taxes			400
Unrecognized tax benefits	3,600		3,600
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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 133,913	$ 88,787	$ 252,421	$ 165,194
Local advertising [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	107,882	75,685	206,452	140,880
Transactions [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	11,304	1,228	17,910	2,492
Brand advertising [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	8,303	9,055	14,930	16,510
Other services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 6,424	$ 2,819	$ 13,129	$ 5,312

INFORMATION ABOUT REVENUE AND57

INFORMATION ABOUT REVENUE AND GEOGRAPHIC AREAS (Long-Lived Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 77,163	$ 79,244
Unites States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	71,483	73,344
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 5,680	$ 5,900