Endurance International 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Trading Symbol	EIGI
Entity Registrant Name	Endurance International Group Holdings, Inc.
Entity Central Index Key	1,237,746
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		133,172,972

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 35,533	$ 32,379
Restricted cash	1,401	1,325
Accounts receivable	10,030	10,201
Deferred tax asset-short term	13,961	13,961
Prepaid domain name registry fees	57,501	49,605
Prepaid expenses and other current assets	14,381	13,173
Total current assets	132,807	120,644
Property and equipment-net	55,135	56,837
Goodwill	1,131,244	1,105,023
Other intangible assets-net	391,819	410,338
Deferred financing costs	359	400
Investments	29,404	40,447
Prepaid domain name registry fees, net of current portion	5,348	7,957
Other assets	1,397	4,397
Total assets	1,747,513	1,746,043
Current liabilities:
Accounts payable	11,765	8,960
Accrued expenses	44,623	38,275
Deferred revenue	279,617	259,567
Current portion of notes payable	45,500	60,500
Current portion of capital lease obligations	4,044	3,793
Deferred consideration-short term	22,336	13,917
Other current liabilities	9,279	10,358
Total current liabilities	417,164	395,370
Long-term deferred revenue	72,022	65,850
Notes payable-long term	1,021,125	1,026,375
Capital lease obligations	2,178	4,302
Deferred tax liability-long term	37,540	35,579
Deferred consideration	10,331	10,722
Other liabilities	3,204	2,806
Total liabilities	$ 1,563,564	1,541,004
Redeemable non-controlling interest		$ 30,543
Commitments and contingencies
Stockholders' equity:
Preferred Stock-par value $0.0001; 5,000,000 shares authorized; no shares issued or outstanding
Common Stock-par value $0.0001; 500,000,000 shares authorized; 130,959,113 and 131,305,352 shares issued at December 31, 2014 and June 30, 2015, respectively; 130,914,333 and 131,302,387 outstanding at December 31, 2014 and June 30, 2015, respectively	$ 14	$ 14
Additional paid-in capital	827,753	816,591
Accumulated other comprehensive loss	(1,039)	(517)
Accumulated deficit	(642,779)	(641,592)
Total stockholders' equity	183,949	174,496
Total liabilities, redeemable non-controlling interest and stockholders' equity	$ 1,747,513	$ 1,746,043

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	131,305,352	130,959,113
Common stock, shares outstanding	131,302,387	130,914,333

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenue	$ 182,431	$ 151,992	$ 359,749	$ 297,742
Cost of revenue	104,937	92,611	205,911	181,802
Gross profit	77,494	59,381	153,838	115,940
Operating expense:
Sales and marketing	37,224	38,225	72,268	79,849
Engineering and development	6,633	5,365	12,004	10,318
General and administrative	21,089	16,876	39,819	32,357
Total operating expense	64,946	60,466	124,091	122,524
Income (loss) from operations	12,548	(1,085)	29,747	(6,584)
Other income (expense):
Other income	5,440		5,440
Interest income	117	89	209	172
Interest expense	(14,011)	(14,177)	(28,332)	(27,812)
Total other income (expense)-net	(8,454)	(14,088)	(22,683)	(27,640)
Income (loss) before income taxes and equity earnings of unconsolidated entities	4,094	(15,173)	7,064	(34,224)
Income tax expense	2,707	1,048	3,685	4,487
Income (loss) before equity earnings of unconsolidated entities	1,387	(16,221)	3,379	(38,711)
(Income) loss of unconsolidated entities	3,458	(89)	4,566	(110)
Net loss	(2,071)	(16,132)	(1,187)	(38,601)
Net loss attributable to non-controlling interest		(2,684)		(5,868)
Net loss attributable to Endurance International Group Holdings, Inc.	(2,071)	(13,448)	(1,187)	(32,733)
Comprehensive income (loss):
Foreign currency translation adjustments	94	26	(522)	48
Total comprehensive loss	$ (1,977)	$ (13,422)	$ (1,709)	$ (32,685)
Basic and diluted net loss per share attributable to Endurance International Group Holdings, Inc. common stockholders	$ (0.02)	$ (0.11)	$ (0.01)	$ (0.26)
Weighted-average common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc. - Basic and diluted	131,186,382	127,225,196	131,091,756	126,844,111

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (1,187)	$ (38,601)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation of property and equipment	16,095	14,548
Amortization of other intangible assets	43,433	49,541
Amortization of deferred financing costs	41	38
Amortization of net present value of deferred consideration	281	5
Stock-based compensation	10,510	7,173
Deferred tax expense	1,961	1,940
Loss on sale of assets	36	74
Gain from unconsolidated entities	(5,440)
(Income) loss of unconsolidated entities	4,566	(110)
Loss from change in deferred consideration	1,083	22
Changes in operating assets and liabilities:
Accounts receivable	193	(491)
Prepaid expenses and other current assets	(6,802)	(17,463)
Accounts payable and accrued expenses	8,898	(204)
Deferred revenue	22,564	49,917
Net cash provided by operating activities	96,232	66,389
Cash flows from investing activities:
Business acquired in purchase transaction, net of cash acquired	(28,914)	(25,158)
Cash paid for minority investment		(15,000)
Purchases of property and equipment	(14,511)	(12,901)
Proceeds from note receivable	3,454
Proceeds from sale of assets	64	84
Purchases of intangible assets	(8)	(100)
Net withdrawals and (deposits) of principal balances in restricted cash accounts	(302)	184
Net cash used in investing activities	(40,217)	(52,891)
Cash flows from financing activities:
Repayment of term loan	(5,250)	(5,250)
Proceeds from borrowing of revolver	38,000	55,000
Repayment of revolver	(53,000)	(22,000)
Payment of financing costs		(12)
Payment of deferred consideration	(10,591)	(81,503)
Payment of redeemable non-controlling interest liability	(20,362)
Principal payments on capital lease obligations	(1,873)	(1,782)
Proceeds from exercise of stock options	652
Issuance costs of common stock		(731)
Net cash used in financing activities	(52,424)	(56,278)
Net effect of exchange rate on cash and cash equivalents	(437)	(88)
Net (decrease) increase in cash and cash equivalents	3,154	(42,868)
Cash and cash equivalents:
Beginning of period	32,379	66,815
End of period	35,533	23,947
Supplemental cash flow information:
Interest paid	28,111	28,269
Income taxes paid	$ 2,417	951
Supplemental disclosure of non-cash financing activities:
Shares issued in connection with the acquisition of Directi		27,235
Assets acquired under capital lease		$ 11,704

Nature of Business

Nature of Business	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	1. Nature of Business Formation and Nature of Business Endurance International Group Holdings, Inc. (“Holdings”) is a Delaware corporation which together with its wholly owned subsidiary company, EIG Investors Corp. (“EIG Investors”), its primary operating subsidiary company, The Endurance International Group, Inc. (“EIG”), and other subsidiary companies of EIG, collectively form the “Company”. The Company is a leading provider of cloud-based platform solutions designed to help small- and medium-sized businesses succeed online. EIG and EIG Investors were incorporated in April 1997 and May 2007, respectively, and Holdings was originally formed as a limited liability company in October 2011 in connection with the acquisition by investment funds and entities affiliated with Warburg Pincus and Goldman, Sachs & Co. on December 22, 2011 of a controlling interest in EIG Investors, EIG and EIG’s subsidiary companies. On November 7, 2012, Holdings reorganized as a Delaware limited partnership and on June 25, 2013, Holdings converted into a Delaware C-corporation and changed its name to Endurance International Group Holdings, Inc. Follow-on Offerings On November 26, 2014, the Company closed a follow-on offering of its common stock, in which the Company sold 3,000,000 shares of its common stock at a public offering price of $14.50 per share and selling stockholders sold 10,000,000 shares of common stock. The underwriters also exercised their overallotment option to purchase an additional 1,950,000 shares of common stock from the selling stockholders. The Company did not receive any proceeds from the sale of shares by the selling stockholders. The follow-on offering resulted in gross proceeds to the Company of $43.5 million and net proceeds to the Company of $41.1 million after deducting underwriting discounts and commissions of $1.7 million and other estimated offering expenses of approximately $0.7 million payable by the Company. The Company incurred an additional $0.3 million of offering expenses on behalf of the selling stockholders, which was included in general and administrative expense in the consolidated statement of operations and comprehensive loss for the year ended December 31, 2014. On March 11, 2015, the Company closed a follow-on offering of its common stock, in which selling stockholders sold 12,000,000 shares of common stock at a public offering price of $19.00 per share. The underwriter also exercised its overallotment option to purchase an additional 1,800,000 shares of common stock from the selling stockholders. The Company did not receive any proceeds from the sale of shares by the selling stockholders. The Company incurred $0.7 million of offering expenses on behalf of the selling stockholders, which was included in general and administrative expense in the consolidated statement of operations and comprehensive loss for the six months ended June 30, 2015.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Preparation The accompanying consolidated financial statements, which include the accounts of the Company and its subsidiaries, have been prepared using accounting principles generally accepted in the United States of America (“U.S. GAAP”). All intercompany transactions have been eliminated on consolidation. The Company has reviewed the criteria of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 280-10, Segment Reporting, Use of Estimates U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. These estimates, judgments and assumptions used in preparing the accompanying consolidated financial statements are based on the relevant facts and circumstances as of the date of the consolidated financial statements. Although the Company regularly assesses these estimates, judgments and assumptions used in preparing the consolidated financial statements, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known. The more significant estimates reflected in these consolidated financial statements include estimates of fair value of assets acquired and liabilities assumed under purchase accounting related to the Company’s acquisitions and when evaluating goodwill and long-lived assets for potential impairment, the estimated useful lives of intangible and depreciable assets, stock-based compensation, certain accruals, reserves and deferred taxes. Unaudited Interim Financial Information The accompanying interim consolidated balance sheet as of June 30, 2015, and the related statements of operations and comprehensive loss for the three and six months ended June 30, 2014 and 2015, cash flows for the six months ended June 30, 2014 and 2015, and the notes to consolidated financial statements are unaudited. These unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. The unaudited consolidated financial statements include, in the opinion of management, all adjustments, consisting only of normal recurring adjustments that are necessary for a fair presentation of the Company’s financial position at June 30, 2015, results of operations for the three and six months ended June 30, 2014 and 2015 and cash flows for the six months ended June 30, 2014 and 2015. The consolidated results in the consolidated statements of operations and comprehensive loss are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2015. Accounts Receivable Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable. Prepaid Domain Name Registry Fees Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a customer. The registry fees are recognized on a straight-line basis over the term of the domain registration period. Property and Equipment Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: Software Two to three years Computers and office equipment Three years Furniture and fixtures Five years Leasehold improvements Shorter of useful life or remaining term of the lease Software Development Costs The Company accounts for software development costs for internal use software under the provisions of ASC 350-40, “Internal-Use Software” Goodwill Goodwill relates to amounts that arose in connection with the Company’s various acquisitions and represents the difference between the purchase price and the fair value of the identifiable intangible and tangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in the equity value of the business, a significant adverse change in certain agreements that would materially affect reported operating results, business climate or operational performance of the business and an adverse action or assessment by a regulator. In accordance with ASC 350, Intangibles—Goodwill and Other The Company assesses fair value based on current market capitalization. As of December 31, 2014 and June 30, 2015, the fair value of the Company’s reporting unit exceeded the carrying value of the reporting unit’s net assets. Therefore, no impairment existed as of those dates. Determining the fair value of a reporting unit, if applicable, requires the Company to make judgments and involves the use of significant estimates and assumptions. These estimates and assumptions relate to, among other things, revenue growth rates and operating margins used to calculate projected future cash flows, risk-adjusted discount rates, future economic and market conditions and determination of appropriate market comparables. The Company bases its fair value estimates on assumptions it believes to be reasonable but that are unpredictable and inherently uncertain. Actual future results may differ from those estimates. The Company had goodwill of $1,105.0 million and $1,131.2 million as of December 31, 2014 and June 30, 2015, respectively, and no impairment charges have been recorded. Long-Lived Assets The Company’s long-lived assets consist primarily of intangible assets, including acquired subscriber relationships, trade names, intellectual property, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangible assets are recorded in connection with its various acquisitions. The Company’s intangible assets are recorded at fair value at the time of their acquisition. The Company amortizes intangible assets over their estimated useful lives. Determination of the estimated useful lives of the individual categories of intangible assets is based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives is recognized in accordance with their estimated projected cash flows. The Company evaluates long-lived intangible and tangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If indicators of impairment are present and undiscounted future cash flows are less than the carrying amount, the fair value of the assets is determined and compared to the carrying value. If the fair value is less than the carrying value, then the carrying value of the asset is reduced to the estimated fair value and an impairment loss is charged to expense in the period the impairment is identified. No such impairment losses have been identified in the three and six months ended June 30, 2014 and 2015. Indefinite life intangible assets include domain names that are available for sale which are recorded at cost to acquire. These assets are not being amortized and are being tested for impairment annually and whenever events or changes in circumstance indicate that their carrying value may not be recoverable. When a domain name is sold, the Company records the cost of the domain in cost of revenue. Acquired In-Process Research and Development (IPR&D) Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified. No such impairment losses have been identified in the three and six months ended June 30, 2014 and 2015. Upon commercialization, the acquired fair value of the IPR&D will be amortized over its estimated useful life. Revenue Recognition The Company generates revenue primarily from selling subscriptions for cloud-based products and services. The subscriptions are similar across all of the Company’s brands and are provided under contracts pursuant to which the Company has ongoing obligations to support the subscriber. These contracts are generally for service periods of up to 36 months and typically require payment in advance. The Company recognizes the associated revenue ratably over the service period , The Company sells domain name registrations that provide a subscriber with the exclusive use of a domain name. These domains are obtained either by one of the Company’s registrars on the subscriber’s behalf, or by the Company from third-party registrars on the subscriber’s behalf. Domain registration fees are non-refundable. Revenue from the sale of a domain name registration by a registrar within the Company is recognized ratably over the subscriber’s service period as the Company has the obligation to provide support over the domain term. Revenue from the sale of a domain name registration purchased by the Company from a third-party registrar is recognized when the subscriber is billed on a gross basis as there are no remaining Company obligations once the sale to the subscriber occurs, and the Company has full discretion on the sales price and bears all credit risk. Revenue from the sale of premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists, delivery of an authorization key to access the domain name has occurred, the fee for the sale of the premium domain is fixed or determinable, and collection of the fee for the sale of the premium domain is deemed probable. Revenue from the sale of non-term based applications and services, such as certain online security products and professional technical services, referral fees and commissions, is recognized when the product is purchased, the service is provided or the referral fee or commission is earned, respectively. A substantial amount of the Company’s revenue is generated from transactions that are multiple-element service arrangements that may include hosting plans, domain name registrations, and other cloud-based products and services. The Company follows the provisions of the FASB, Accounting Standards Update (“ASU”) No. 2009-13 (“ASU 2009-13”), Revenue Recognition (Topic 605), Multiple-Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force Under ASU 2009-13, to treat deliverables in a multiple-element service arrangement as separate units of accounting, the deliverables must have standalone value upon delivery. If the deliverables have standalone value upon delivery, the Company accounts for each deliverable separately. Hosting services, domain name registrations, cloud-based products and services have standalone value and are often sold separately. When multiple deliverables included in a multiple-element service arrangement are separated into different units of accounting, the total transaction amount is allocated to the identified separate units based on a relative selling price hierarchy. The Company determines the relative selling price for a deliverable based on vendor specific objective evidence (“VSOE”) of fair value, if available, or best estimate of selling price (“BESP”), if VSOE is not available. The Company has determined that third-party evidence of selling price (“TPE”) is not a practical alternative due to differences in its multi-brand offerings compared to competitors and the lack of availability of relevant third-party pricing information. The Company has not established VSOE for its offerings due to lack of pricing consistency, the introduction of new products, services and other factors. Accordingly, the Company generally allocates revenue to the deliverables in the arrangement based on the BESP. The Company determines BESP by considering its relative selling prices, competitive prices in the marketplace and management judgment; these selling prices, however, may vary depending upon the particular facts and circumstances related to each deliverable. The Company analyzes the selling prices used in its allocation of transaction amount, at a minimum, on a quarterly basis. Selling prices are analyzed on a more frequent basis if a significant change in our business necessitates a more timely analysis. The Company maintains a reserve for refunds and chargebacks related to revenue that has been recognized and is expected to be refunded. The Company had a refund and chargeback reserve of $0.6 million and $0.6 million as of December 31, 2014 and June 30, 2015, respectively. The portion of deferred revenue that is expected to be refunded at December 31, 2014 and June 30, 2015 was $2.2 million and $2.3 million, respectively. Based on refund history, a significant majority of refunds happen in the same fiscal month that the customer contract starts or renews. Approximately 75% of all refunds happen in the same fiscal month that the contract starts or renews, and approximately 90% of all refunds happen within 45 days of the contract start or renewal date. Income Taxes Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes ASC 740 clarifies the accounting for income taxes by prescribing a minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. There were no unrecognized tax benefits in the three and six months ended June 30, 2014 and 2015. The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three and six months ended June 30, 2014 and 2015, the Company did not recognize any interest and penalties related to unrecognized tax benefits. Stock-Based Compensation The Company follows the provisions of ASC 718, Compensation—Stock Compensation The Company estimates the fair value of employee stock options on the date of grant using the Black-Scholes option-pricing model, which requires the use of highly subjective estimates and assumptions. For restricted stock awards granted, the Company estimates the fair value of each restricted stock award based on the closing trading price of its common stock on the date of grant. Net Loss per Share The Company considered ASC 260-10, Earnings per Share The Company’s potentially dilutive shares of common stock are excluded from the diluted weighted-average number of shares of common stock outstanding as their inclusion in the computation would be anti-dilutive due to net losses. For the three and six months ended June 30, 2014 and 2015, all non-vested shares granted prior to the Company’s initial public offering in October 2013 (the “IPO”), stock options, restricted stock awards and restricted stock units were excluded from the calculation of diluted earnings per share as their inclusion would have been anti-dilutive as a result of the net losses for these periods. Three Months Ended Six Months Ended 2014 2015 2014 2015 (unaudited) (in thousands, except share amounts and per share data) Net loss attributable to Endurance International Group Holdings, Inc. $ (13,448 ) $ (2,071 ) $ (32,733 ) $ (1,187 ) Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted $ (0.11 ) $ (0.02 ) $ (0.26 ) $ (0.01 ) Weighted-average common shares outstanding used in computing net loss per share attributable to Endurance International Group Holdings, Inc. Basic and diluted. 127,225,196 131,186,382 126,844,111 131,091,756 Recent Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In February 2015, the FASB issued ASU No. 2015-02, Amendments to the Consolidation Analysis, In April 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest, Simplifying the Presentation of Debt Issuance Costs, In April 2015, the FASB issued ASU No. 2015-05, Intangibles Goodwill and Other—Internal Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Acquisitions	3. Acquisitions The Company accounts for the acquisitions of businesses using the purchase method of accounting. The Company allocates the purchase price to the tangible and identifiable intangible assets and liabilities assumed based on their estimated fair values. Purchased identifiable intangible assets typically include subscriber relationships, trade names, domain names held for sale, developed technology and IPR&D. The methodologies used to determine the fair value assigned to subscriber relationships and domain names held for sale are typically based on the excess earnings method that considers the return received from the intangible asset and includes certain expenses and also considers an attrition rate based on the Company’s internal subscriber analysis and an estimate of the average life of the subscribers. The fair value assigned to trade names is typically based on the income approach using a relief from royalty methodology that assumes that the fair value of a trade name can be measured by estimating the cost of licensing and paying a royalty fee for the trade name that the owner of the trade name avoids. The fair value assigned to developed technology typically uses the cost approach. The fair value assigned to IPR&D is based on the cost approach. If applicable, the Company estimates the fair value of contingent consideration payments in determining the purchase price. The contingent consideration is then adjusted to fair value in subsequent periods as an increase or decrease in current earnings in general and administrative expense in the consolidated statements of operations and comprehensive loss Verio On May 26, 2015, the Company acquired the assets of the U.S. retail portion of the Verio business of NTT America, Inc. (“Verio”), which is a provider of shared, virtual private server (“VPS”) and dedicated hosting services. The Company expects this acquisition to leverage its reach and generate better economies of scale. The aggregate purchase price was $13.0 million, of which $10.5 million was paid in cash at the closing. The Company is obligated to pay the remaining cash consideration of $2.5 million on the first anniversary of the acquisition, less amounts used to satisfy any obligation determined to be owed to the Company for any indemnity pursuant to the asset purchase agreement. The purchase price of $13.0 million has been allocated on a preliminary basis to intangible assets consisting of subscriber relationships and trade names of $12.3 million and $0.1 million, respectively, and goodwill of $2.0 million, offset by deferred revenue of $1.4 million. Goodwill related to the acquisition is deductible for tax purposes. World Wide Web Hosting On June 25, 2015, the Company acquired substantially all of the assets of World Wide Web Hosting, LLC (“WWWH”), which is a provider of web presence solutions doing business under the brand name Site5. The Company previously had an equity interest in WWWH, which was originally acquired when the Company acquired Hostgator.com LLC on July 13, 2012. The Company expects this acquisition will allow it to leverage its reach and generate better economies of scale. The aggregate purchase price was $34.9 million, $23.0 million of which is payable in cash and $11.9 million of which is the implied value of the pro rata interest in the acquired assets that the Company obtained upon the seller’s redemption of its 40% equity interest in WWWH. The Company recognized a $5.4 million gain as a result of this redemption, which is recorded as other income in the Company’s consolidated statement of operations and comprehensive loss. Of the $23.0 million payable in cash, $18.4 million was paid at the closing and the Company is obligated to pay the remaining cash consideration of $4.6 million on the first anniversary of the acquisition, less amounts used to satisfy any obligation determined to be owed to the Company for any indemnity pursuant to the asset purchase agreement. The purchase price of $34.9 million has been allocated on a preliminary basis to intangible assets consisting of subscriber relationships and trade names of $10.7 million and $1.7 million, respectively, goodwill of $24.8 million, prepaid expenses and other current assets of $0.2 million, offset by deferred revenue of $2.5 million. Goodwill related to the acquisition is deductible for tax purposes. For the three and six months ended June 30, 2015, $1.1 million and $1.1 million, respectively, of revenue attributable to the 2015 acquisitions was included in the Company’s consolidated statement of operations and comprehensive loss. The Company has omitted earnings information related to its acquisitions as it does not separately track earnings from each of its acquisitions in a manner that would provide meaningful disclosure. The Company considers it to be impracticable to compile such information on an acquisition-by-acquisition basis since activities of integration and use of shared costs and services across the Company’s business are not allocated to each acquisition and are not managed to provide separate identifiable earnings from the dates of acquisition. For the intangible assets acquired in connection with all acquisitions completed during the six months ended June 30, 2015, subscriber relationships have a weighted-useful life of 4.1 years and trade names have a weighted-useful life of 3.0 years. Pro Forma Disclosure The Company has omitted pro forma disclosures related to its acquisitions completed during 2015 as the pro forma effect of including the results of these acquisitions since the beginning of 2015 would not be materially different than the actual results reported. Summary of Deferred Consideration Related to Acquisitions Components of deferred consideration short-term and long-term as of December 31, 2014 and June 30, 2015, consisted of the following: December 31, 2014 June 30, 2015 Short- Long- Short- Long- (in thousands) Mojoness, Inc. (Acquired in 2012). $ 490 $ 1,370 $ 681 $ 698 Typepad Holdings LLC (Acquired in 2013) — 2,800 — 2,800 Domain name business (Acquired in 2014) 9,027 — — — Webzai Ltd. (Acquired 2014) — 2,617 — 2,729 BuyDomains (Acquired in 2014) — 3,935 — 4,104 Arvixe LLC (Acquired in 2014) 4,400 — 4,400 — JDI Backup Ltd. (Acquired in 2013) — — 10,181 — Verio (Acquired in 2015) — — 2,474 — World Wide Web Hosting (Acquired in 2015) — — 4,600 — Total $ 13,917 $ 10,722 $ 22,336 $ 10,331

Property and Equipment and Capi

Property and Equipment and Capital Lease Obligations	6 Months Ended
	Jun. 30, 2015
Property, Plant and Equipment [Abstract]
Property and Equipment and Capital Lease Obligations	4. Property and Equipment and Capital Lease Obligations Components of property and equipment consisted of the following: December 31, 2014 June 30, 2015 (in thousands) Software $ 22,550 $ 25,978 Computers and office equipment 76,274 84,094 Furniture and fixtures 4,045 4,541 Leasehold improvements 7,015 7,245 Construction in process 2,378 4,640 Property and equipment—at cost 112,262 126,498 Less accumulated depreciation (55,425 ) (71,363 ) Property and equipment—net $ 56,837 $ 55,135 Depreciation expense related to property and equipment for the three months ended June 30, 2014 and 2015 was $7.5 million and $8.2 million, respectively. Depreciation expense related to property and equipment for the six months ended June 30, 2014 and 2015 was $14.5 million and $16.1 million, respectively. Property under capital lease with a cost basis of $11.7 million was included in software as of June 30, 2015. The net carrying value of property under capital lease as of June 30, 2015 was $5.9 million.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	5. Fair Value Measurements The following valuation hierarchy is used for disclosure of the inputs used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows: • Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. • Level 2 inputs are quoted prices for similar assets or liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. • Level 3 inputs are unobservable inputs based on the Company’s own assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. As of December 31, 2014, the Company’s financial assets or liabilities required to be measured on a recurring basis consist of the accrued earn-out consideration payable in connection with the 2012 acquisition of certain assets of Mojoness, Inc. or Mojo, and the 2014 acquisition of a domain name business. As of June 30, 2015, the Company’s financial assets or liabilities required to be measured on a recurring basis consist of the accrued earn-out consideration payable in connection with Mojo. The Company has classified its liabilities for contingent earn-out consideration related to these acquisitions within Level 3 of the fair value hierarchy because the fair value is determined using significant unobservable inputs, which include probability weighted cash flows. During the six months ended June 30, 2015, the Company paid $0.5 million related to the earn-out provisions for the Mojo acquisition and $10.1 million related to the earn-out provisions for the domain name business. The Company recorded a $1.1 million change in fair value of the earn-out consideration related to the domain name business during the six months ended June 30, 2015, which is included in general and administrative expense in the Company’s consolidated statement of operations and comprehensive loss. The earn-out consideration in the table below is included in total deferred consideration in the Company’s consolidated balance sheets. Basis of Fair Value Measurements Balance Quoted Prices Significant Significant (in thousands) Balance at December 31, 2014: Financial liabilities: Contingent earn-out consideration $ 10,887 — — $ 10,887 Total financial liabilities $ 10,887 — — $ 10,887 Balance at June 30, 2015: Financial liabilities: Contingent earn-out consideration $ 1,379 — — $ 1,379 Total financial liabilities $ 1,379 — — $ 1,379 The following table summarizes the changes in the financial liabilities measured on a recurring basis using Level 3 inputs as of June 30, 2015 (in thousands): Financial liabilities measured using Level 3 inputs at January 1, 2015 $ 10,887 Payment of contingent earn-out related to 2012 Mojo acquisition (488 ) Payment of contingent earn-out related to 2014 domain name business acquisition (10,104 ) Change in fair value of contingent earn-out 1,084 Financial liabilities measured using Level 3 inputs at June 30, 2015 $ 1,379

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	6. Goodwill and Other Intangible Assets The following table summarizes the changes in the Company’s goodwill balances from December 31, 2014 to June 30, 2015 (in thousands): Goodwill balance at December 31, 2014 $ 1,105,023 Goodwill related to 2015 acquisitions 26,770 Foreign translation impact (549 ) Goodwill balance at June 30, 2015 $ 1,131,244 In accordance with ASC 350, the Company reviews goodwill and other indefinite-lived intangible assets for indicators of impairment on an annual basis and between tests if an event occurs or circumstances change that would more likely than not reduce the fair value of goodwill below its carrying amount. The Company concluded there were no triggering events during the six months ended June 30, 2015. At June 30, 2015, other intangible assets consisted of the following: Gross Accumulated Net Carrying Weighted (in thousands) Developed technology $ 205,785 $ 69,045 $ 136,740 7 years Subscriber relationships 387,513 228,957 158,556 5 years Trade names 81,571 36,806 44,765 6 years Intellectual property 29,528 4,795 24,733 13 years Domain names available for sale 27,319 1,810 25,509 Indefinite Leasehold interests 314 301 13 1 year In-process research and development 1,503 — 1,503 — Total June 30, 2015 $ 733,533 $ 341,714 $ 391,819 The estimated useful lives of the individual categories of other intangible assets are based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives is recognized over the period of time the assets are expected to contribute to future cash flows. The Company amortizes finite-lived intangible assets over the period in which the economic benefits are expected to be realized based upon their estimated projected cash flows. The Company’s amortization expense is included in cost of revenue in the aggregate amounts of $25.4 million and $22.1 million for the three months ended June 30, 2014 and 2015, respectively, and $49.5 million and $43.4 million for the six months ended June 30, 2014 and 2015, respectively.

Investments

Investments	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investments	7. Investments As of December 31, 2014 and June 30, 2015, the Company’s carrying value of investments in privately-held companies was $40.4 million and $29.4 million, respectively. In January 2012, the Company made an initial investment of $0.3 million to acquire a 25% interest in BlueZone Labs, LLC (“BlueZone”), a provider of “do-it-yourself” tools and managed search engine optimization services. The Company also has an agreement with BlueZone to purchase products and services. During the three months ended June 30, 2014 and 2015, the Company purchased $0.3 million and $0.3 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company’s consolidated statements of operations and comprehensive loss. During the six months ended June 30, 2014 and 2015, the Company purchased $0.5 million and $0.6 million, respectively, of products and services from BlueZone, which is included in cost of revenue in the Company’s consolidated statements of operations and comprehensive loss. As of June 30, 2014 and 2015, $0.1 million and $0.2 million, respectively, relating to our investment in BlueZone was included in accounts payable and accrued expense in the Company’s consolidated balance sheet. In July 2012, the Company assumed a 50% interest in WWWH with a fair value of $10.0 million. On October 31, 2013, the Company sold 20% of its ownership interest, or 10% of the capital stock of WWWH, reducing its equity interest to 40%, recorded an additional $1.5 million note receivable from the buyer for total notes receivable from the buyer of $3.5 million, and decreased its investment in WWWH by $1.5 million. The Company evaluated its remaining 40% ownership interest in WWWH and recognized a $2.6 million impairment on the remaining investment, which was recorded in equity (income) loss of unconsolidated entities, net of tax, in the Company’s consolidated statement of operations and comprehensive loss for the year ended December 31, 2013. On June 25, 2015, the Company acquired substantially all of the assets of WWWH. In connection with the asset purchase agreement dated June 25, 2015, the seller redeemed from the Company its 40% equity interest in exchange for a pro rata interest in the acquired assets, which have an estimated implied value of $11.9 million. The Company recognized a $5.4 million gain as a result of the redemption of its equity interest, which is recorded as other income for the three and six months ended June 30, 2015 in the Company’s consolidated statements of operations and comprehensive loss. In addition, the Company received a $3.5 million repayment of total notes receivable that were due to the Company from the seller of WWWH prior to the acquisition. For more detail, see Note 3 to the consolidated financial statements. In June 2013, the Company made an initial investment of $8.8 million to acquire a 17.5% interest in JDI Backup Ltd., which provides online desktop backup services. The agreement also provided for a call option for the acquisition of additional equity interests which the Company exercised on December 11, 2013 to increase its investment in JDI Backup Ltd. to 60% for $22.2 million, which was paid in cash. On July 7, 2014, the Company paid an additional $4.2 million to increase its investment in JDI Backup Ltd. to 67%. On January 13, 2015, the Company entered into an agreement to increase its investment in JDI Backup Ltd. to 100% for $30.5 million, which was payable in three equal installments. For more detail, see Note 11 to the consolidated financial statements. In May 2014, the Company made a strategic investment of $15.0 million in Automattic, Inc. (“Automattic”), which provides content management systems associated with WordPress. The investment represents less than 5% of the outstanding shares of Automattic and better aligns the Company with an important partner. In August 2014, the Company made an aggregate investment of $3.9 million for a joint venture with and 49% ownership interest in WZ UK Ltd., which is a provider of technology and sales marketing services associated with web builder solutions. The agreement provides for the acquisition of additional equity interests in WZ UK Ltd. at the option of the Company. The Company has a license agreement with WZ UK Ltd. to license certain technology to WZ UK Ltd. to enable it to use, develop, market, distribute, host and support website builder applications. Under the terms of the license agreement, the Company receives a royalty payment in the amount of 4.5% of all billings in the previous month, net of any refunds, chargebacks and any other credits applied. During the three and six months ended June 30, 2015, the Company recognized $0.1 million and $0.1 million, respectively, of royalty revenue under the terms of the license agreement. During the three and six months ended June 30, 2015, the Company’s proportionate share of net loss from its investment in WZ UK Ltd. was $3.2 million and $4.1 million, respectively. During the three months ended June 30, 2015, the Company’s proportionate share of net loss exceeded the Company’s investment balance in WZ UK Ltd. As of June 30, 2015, the Company and the majority investor committed to make additional equity contributions to WZ UK Ltd. The Company’s share of those incremental investments is approximately $7.4 million. The significance of the net loss of WZ UK Ltd., in comparison to the Company’s net loss requires the disclosure of summarized financial information from the statement of operations and comprehensive loss for WZ UK Ltd. The following table presents a summary of the statement of operations and comprehensive loss for WZ UK Ltd. for the three and six months ended June 30, 2015: Three Six (in thousands) Revenue $ 440 $ 476 Gross profit (loss) $ 18 $ (95 ) Operating loss $ (6,618 ) $ (8,407 ) Net loss $ (6,618 ) $ (8,407 ) As of December 31, 2014 and June 30, 2015,WZ UK Ltd. had total assets of $5.6 million and $2.0 million, respectively, and total liabilities of $6.3 million and $11.1 million, respectively. In December 2014, the Company made an aggregate investment of $15.2 million to acquire a 40% ownership interest in AppMachine BV (“AppMachine”), which is a developer of software that allows users to build mobile applications for smart devices such as phones and tablets. Under the terms of the investment agreement for AppMachine, the Company is obligated to purchase the remaining 60% of AppMachine in three tranches of 20% within specified periods if AppMachine achieves a specified minimum revenue threshold within a designated timeframe. The consideration for each of the three tranches is calculated as the product of AppMachine’s revenue, as defined in the investment agreement, for the trailing twelve month period prior to the applicable determination date times a specified multiple based upon year-over-year revenue growth multiplied by 20%. Investments in which the Company’s interest is less than 20% and which are not classified as available-for-sale securities are carried at the lower of cost or net realizable value unless it is determined that the Company exercises significant influence over the investee company, in which case the equity method of accounting is used. For those investments in which the Company’s voting interest is between 20% and 50%, the equity method of accounting is used. Under this method, the investment balance, originally recorded at cost, is adjusted to recognize the Company’s share of net earnings or losses of the investee company as they occur, limited to the extent of the Company’s investment in, advances to and commitments for the investee. These adjustments are reflected in equity (income) loss of unconsolidated entities, net of tax in the Company’s consolidated statement of operations and comprehensive loss. The Company recognized net income of $0.1 million and net loss of $3.5 million for the three months ended June 30, 2014 and 2015, respectively, and net income of $0.1 million and net loss of $4.6 million for the six months ended June 30, 2014 and 2015, respectively, related to its investments. From time to time, the Company may make new and follow-on investments and may receive distributions from investee companies. As of December 31, 2014 and June 30, 2015, the Company did not have an equity method investment in which the Company’s proportionate share exceeded 10% of the Company’s consolidated assets or income from continuing operations.

Notes Payable

Notes Payable	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Notes Payable	8. Notes Payable At December 31, 2014 and June 30, 2015 notes payable consisted of a first lien term loan facility with a principal amount outstanding of $1,036.9 million and $1,031.6 million, respectively, which bore interest at a LIBOR-based rate of 5.00%. The current portion of the first lien term loan as of December 31, 2014 and June 30, 2015 was $10.5 million in both periods. In addition, as of June 30, 2015, notes payable included a bank revolver loan (“Revolver loan”) of $35.0 million, consisting of a loan of $19.0 million which bore interest at a LIBOR-based rate of 7.75% and a loan of $16.0 million which bore interest at an alternate base rate of 8.50%. The amounts outstanding under the revolving credit facility as of December 31, 2014 and June 30, 2015 of $50.0 million and $35.0 million, respectively, were classified as current notes payable on the consolidated balance sheets. In November 2013, following the IPO, the Company repaid in full its November 2012 second lien term loan facility of $315.0 million and increased the first lien term loan facility (“November 2013 First Lien”) by $166.2 million to $1,050.0 million. The Company also increased its Revolver loan capacity by $40.0 million to $125.0 million, none of which was drawn down at the time of the increase. The mandatory repayment of principal on the November 2013 First Lien was increased to approximately $2.6 million at the end of each quarter. During the six months ended June 30, 2014 and 2015, the Company made aggregate mandatory repayments on the November 2013 First Lien of $5.3 million in each period. In the six months ended June 30, 2015, the Company had drawn down an aggregate amount of $38.0 million on its Revolver loan, and repaid an aggregate amount of $53.0 million of the amount drawn down, resulting in $35.0 million outstanding under the Revolver loan at June 30, 2015. The maturity dates of the November 2013 First Lien and Revolver loan are November 9, 2019 and December 22, 2016, respectively. Effective November 25, 2013, the interest rate for a LIBOR based interest loan was reduced to 4.00% plus the greater of the LIBOR rate or 1.00%. The interest rate for a reference rate loan was reduced to 3.00% per annum plus the greater of the prime rate, the federal funds effective rate plus 0.50%, an Adjusted LIBOR rate or 2.00%. There was no change to the interest rates for a Revolver loan. Interest is payable on maturity of the elected interest period for a LIBOR-based interest loan, which can be one, two, three or six months. Interest is payable at the end of each fiscal quarter for a reference rate loan, term loan or an ABR Revolver loan. Interest The Company recorded $14.2 million and $14.0 million in interest expense for the three months ended June 30, 2014 and 2015, respectively and $27.8 million and $28.3 million, respectively, for the six months ended June 30, 2014 and 2015, respectively. The following table provides a summary of interest rates and interest expense for the three and six months ended June 30, 2014 and 2015: Three Months Ended Three Months Ended Six Months Ended Six Months Ended (dollars in thousands) Interest rate—LIBOR 5.00%-7.75 % 5.00%-7.75 % 5.00%-7.75 % 5.00%-7.75 % Interest rate—reference 8.50 % 8.50 % 8.50 % 8.50 % Non-refundable fee—unused facility 0.50 % 0.50 % 0.50 % 0.50 % Interest expense and service fees $ 13,956 $ 13,703 $ 27,307 $ 27,679 Amortization of deferred financing fees $ 19 $ 21 $ 38 $ 41 Amortization of net present value of deferred consideration $ — $ 143 $ 6 $ 281 Interest expense for capital lease obligations $ 131 $ 86 $ 274 $ 184 Interest expense for deferred consideration promissory note $ 70 $ 70 $ 140 $ 140 Other interest expense $ 1 $ (12) $ 47 $ 7 Total interest expense $ 14,177 $ 14,011 $ 27,812 $ 28,332 Debt Covenants The November 2013 First Lien requires that the Company maintain one financial covenant, based on EBITDA coverage. There are also restrictions on the payment of dividends, as well as reporting requirements. Additionally, the November 2013 First Lien term loan facility contains certain negative covenants and defines certain events of default, including a change of control and non-payment of principal and interest, among others, which could result in amounts becoming payable prior to their maturity dates. The Company was in compliance with all covenants at June 30, 2015. Substantially all of the Company’s assets are pledged as collateral for the outstanding loan commitments with the exception of certain excluded equity interests and certain restricted cash balances and bank deposits permitted under the terms of the November 2013 First Lien.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Stockholders' Equity	9. Stockholders’ Equity Preferred Stock The Company has 5,000,000 shares of authorized preferred stock, par value $0.0001. There are no preferred shares issued or outstanding as of December 31, 2014 and June 30, 2015. Common Stock The Company has 500,000,000 shares of authorized common stock, par value $0.0001. Voting Rights All holders of common stock are entitled to one vote per share. The following table presents the changes in total stockholders’ equity: Total (in thousands) Balance, December 31, 2014 $ 174,496 Stock-based compensation 10,510 Stock option exercises 652 Foreign currency translation adjustment (522 ) Net loss (1,187 ) Balance, June 30, 2015 $ 183,949

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	10. Stock-Based Compensation The following table presents total stock-based compensation expense recorded in the consolidated statement of operations and comprehensive loss for all 2012 restricted stock awards and units issued prior to the IPO and all awards granted under the Company’s 2013 Stock Incentive Plan (the “2013 Plan”) in connection with or subsequent to the IPO: Three Months Ended Six Months Ended 2014 2015 2014 2015 (in thousands) Cost of revenue $ 114 $ 646 $ 246 $ 759 Sales and marketing 385 845 753 1,235 Engineering and development 180 487 373 704 General and administrative 2,950 4,561 5,801 7,812 Total stock-based compensation expense $ 3,629 $ 6,539 $ 7,173 $ 10,510 2012 Restricted Stock Awards The following table provides a summary of the 2012 restricted stock awards activity for the six months ended June 30, 2015 for restricted stock awards that were granted prior to the IPO: 2012 Restricted Stock Awards Non-vested at December 31, 2014 759,122 Vested (322,524 ) Canceled (18,349 ) Non-vested at June 30, 2015 418,249 The following table provides a summary of the activity for the six months ended June 30, 2015 for the restricted stock units that were granted in connection with the IPO and the non-vested balance as of June 30, 2015: Restricted Stock Units Weighted Non-vested at December 31, 2014 155,094 $ 12.00 Vested and unissued (66,468 ) $ 12.00 Non-vested at June 30, 2015 88,626 $ 12.00 2013 Stock Incentive Plan The following table provides a summary of the Company’s stock options as of June 30, 2015 and the stock option activity for all stock options granted under the 2013 Plan during the six months ended June 30, 2015: Stock Weighted- Weighted- Aggregate Outstanding at December 31, 2014 5,407,959 $ 12.07 Granted 1,985,701 $ 18.29 Exercised (54,318 ) $ 12.00 Forfeited/ canceled (37,920 ) $ 12.44 Outstanding at June 30, 2015 7,301,422 $ 13.76 8.6 $ 50,401 Exercisable at June 30, 2015 2,161,767 $ 12.00 8.3 $ 18,713 Expected to vest after June 30, 2015 (1) 5,042,545 $ 14.45 8.8 $ 31,318 Exercisable as of June 30, 2015 and expected to vest thereafter (2) 7,204,312 $ 13.72 8.6 $ 50,031 (1) This represents the number of unvested options outstanding as of June 30, 2015 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate. (2) This represents the number of vested options as of June 30, 2015 plus the number of unvested options outstanding as of June 30, 2015 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate. (3) The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on June 30, 2015 of $20.66 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options. Unless otherwise determined by the Company’s board of directors, restricted stock awards granted under the 2013 Plan generally vest annually over a four-year period. The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the six months ended June 30, 2015: Restricted Stock Weighted Non-vested at December 31, 2014 695,312 $ 12.40 Granted 746,525 $ 18.32 Vested (11,212 ) $ 13.60 Canceled (23,157 ) $ 12.38 Non-vested at June 30, 2015 1,407,468 $ 15.53 Unless otherwise determined by the Company’s board of directors, restricted stock units granted under the 2013 Plan generally vest monthly over a four-year period. The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the six months ended June 30, 2015: Restricted Stock Units Weighted Non-vested at December 31, 2014 341,161 $ 12.00 Vested and unissued (60,198 ) $ 12.00 Non-vested at June 30, 2015 280,963 $ 12.00

Redeemable Non-controlling Inte

Redeemable Non-controlling Interest	6 Months Ended
	Jun. 30, 2015
Noncontrolling Interest [Abstract]
Redeemable Non-controlling Interest	11. Redeemable Non-controlling Interest In connection with a 2013 equity investment in JDI Backup Ltd., where the Company acquired a controlling interest, the agreement provided for a put option for the then non-controlling interest (“NCI”) shareholders to put the remaining equity interest to the Company within pre-specified put periods. As the NCI was subject to a put option that was outside the control of the Company, it was deemed a redeemable non-controlling interest and not recorded in permanent equity, and was presented as mezzanine redeemable non-controlling interest on the consolidated balance sheet, and was subject to the guidance of the Securities and Exchange Commission (“SEC”) under ASC 480-10-S99, Accounting for Redeemable Equity Securities. The difference between the $20.8 million initial fair value of the redeemable non-controlling interest and the value that was expected to be paid upon exercise of the put option was being accreted over the period commencing December 11, 2013 and up to the end of the first put option period, which commenced on the 18-month anniversary of the acquisition date. Adjustments to the carrying amount of the redeemable non-controlling interest were charged to additional paid-in capital. Non-controlling interest arising from the application of the consolidation rules was classified within total stockholders’ equity with any adjustments charged to net loss attributable to non-controlling interest in a consolidated subsidiary in the consolidated statement of operations and comprehensive loss. During the year ended December 31, 2014, the Company paid $4.2 million to increase its investment in JDI Backup Ltd. and entered into an amendment to the put option with the NCI shareholders. During the year ended December 31, 2014, due to the Company’s assessment of the financial performance and forecasted profitability of JDI Backup Ltd., the Company changed its estimate of the expected exercise amount of the put option. The change in estimate resulted in the fair value of the put option increasing to $30.5 million as of December 31, 2014. On January 13, 2015, the Company entered into an agreement to acquire the remaining interests owned by the NCI shareholders for $30.5 million, which was originally payable in three equal installments on January 13, 2015, June 15, 2015 and September 15, 2015. During the six months ended June 30, 2015, the Company entered into amendments to change the dates of the second installment from June 15, 2015 to April 10, 2015 and the date of the third installment from September 15, 2015 to July 2, 2015. The Company will continue to consolidate JDI Backup Ltd. for financial reporting purposes, however, because the Company now owns 100% of JDI Backup Ltd., commencing on January 13, 2015, the Company no longer records a non-controlling interest in the consolidated statement of operations and comprehensive loss.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The Company files income tax returns in the United States for federal income taxes and in various state jurisdictions. The Company also files in several foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities throughout the world. Since the Company is in a loss carry-forward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carry-forward is available. The Company is subject to tax examinations in Brazil, India and Singapore for 2014 and the United Kingdom from 2010 through 2014. The Company recognizes, in its consolidated financial statements, the effect of a tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. The Company has no unrecognized tax positions at December 31, 2014 and June 30, 2015 that would affect its effective tax rate. The Company does not expect a significant change in the liability for unrecognized tax benefits in the next 12 months. The Company regularly assesses its ability to realize its deferred tax assets. Assessing the realization of deferred tax assets requires significant management judgment. In determining whether its deferred tax assets are more likely than not realizable, the Company evaluated all available positive and negative evidence, and weighted the evidence based on its objectivity. Evidence the Company considered included: • Net operating losses (“NOLs”) incurred from the Company’s inception to June 30, 2015; • Expiration of various federal and state tax attributes; • Reversals of existing temporary differences; • Composition and cumulative amounts of existing temporary differences; and • Forecasted profit before tax. As of June 30, 2015, the Company is in a cumulative pre-tax book loss position for the past three years. The Company has generated significant NOLs since inception, and as such, it has no U.S. carryback capacity. The Company has a history of expiring state NOLs. The Company scheduled out the future reversals of existing deferred tax assets and liabilities and concluded that these reversals did not generate sufficient future taxable income to offset the existing net operating losses. After consideration of the available evidence, both positive and negative, the Company has recorded a valuation allowance of $69.3 million as of December 31, 2014. The provision for income taxes results from a combination of the activities of the Company’s domestic and foreign subsidiaries. For the three months ended June 30, 2014 and 2015, the Company recognized tax expense of $1.0 million and $2.7 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the three months ended June 30, 2015 is primarily attributable to federal and state current income taxes of $0.8 million, foreign current tax expense of $0.3 million, U.S. deferred tax expense of $1.7 million related to the differences in the accounting treatment of goodwill under U.S. GAAP and the tax accounting for goodwill, partially offset by a $0.1 million reduction in the valuation allowance. For the six months ended June 30, 2014 and 2015, the Company recognized tax expense of $4.5 million and $3.7 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the six months ended June 30, 2015 is primarily attributable to a provision for federal and state current income taxes of $1.1 million, foreign current tax expense of $0.7 million, U.S. deferred tax expense of $2.2 million related to the differences in the accounting treatment of goodwill under U.S. GAAP and the tax accounting for goodwill and foreign deferred tax expense of $0.1 million related to increases in deferred liabilities, partially offset by a $0.3 million reduction of the valuation allowance. The provision for income taxes shown on the consolidated statements of operations and comprehensive loss differs from amounts that would result from applying the statutory tax rates to income before taxes primarily because of state income taxes and certain permanent expenses that were not deductible, as well as the application of valuation allowances against U.S. and foreign assets. As of December 31, 2014, the Company had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $158.9 million and future state taxable income by approximately $158.5 million. These NOL carry-forwards expire on various dates through 2033. The Company has $0.4 million of U.S. capital loss carry-forwards which will expire in 2018. Approximately $0.8 million of the U.S. federal NOL carry-forward and $0.2 million of the state NOL carry-forwards are from excess stock-based compensation, for which the benefit will be recorded to additional paid-in capital when recognized. As of December 31, 2014, the Company had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $37.2 million. India has loss carry-forwards totaling $2.7 million that expire in 2021. The Company also has loss carry-forwards in the United Kingdom of $34.3 million which carry-on indefinitely. Utilization of the NOL carry-forwards may be subject to an annual limitation due to the ownership percentage change limitations under Section 382 of the Internal Revenue Code (“Section 382 limitation”). Ownership changes can limit the amount of net operating loss and other tax attributes that a company can use each year to offset future taxable income and taxes payable. In connection with a change in control in 2011 the Company was subject to Section 382 annual limitations of $77.1 million against the balance of NOL carry-forwards generated prior to the change in control. Through December 31, 2014 the Company accumulated the unused amount of Section 382 limitations in excess of the amount of NOL carry-forwards that were originally subject to limitation. Therefore these unused NOL carry-forwards are available for future use to offset taxable income. The Company has completed an analysis of changes in its ownership from 2011, through the IPO, to December 31, 2013. The Company concluded that there was not a Section 382 ownership change during this period and therefore any NOLs generated through December 31, 2013, are not subject to any new Section 382 annual limitations on NOL carry-forwards. On November 20, 2014, the Company completed a follow-on offering pursuant to which the Company sold an aggregate of 3,000,000 shares of common stock and the selling stockholders sold an aggregate of 11,950,000 shares of common stock. The Company did not receive any proceeds from the sale of shares by the selling stockholders. On March 6, 2015, the Company completed a follow-on offering pursuant to which the selling stockholders sold an aggregate of 13,800,000 shares of common stock. The Company did not receive any proceeds from the sale of shares by the selling stockholders. The Company has performed an analysis of the impact of this offering and determined that no Section 382 change in ownership has occurred. As a result, all unused NOL carry-forwards at December 31, 2014 are available to offset taxable income.

Severance and Other Exit Costs

Severance and Other Exit Costs	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Severance and Other Exit Costs	13. Severance and Other Exit Costs In connection with acquisitions, the Company may evaluate its data center, sales and marketing, support and engineering operations and the general and administrative function in an effort to eliminate redundant costs. As a result, the Company may incur charges for employee severance, exiting facilities and restructuring data center commitments and other related costs. During the year ended December 31, 2014, the Company implemented plans to further integrate and consolidate its data center, support and engineering operations, resulting in severance and facility exit costs. The severance charges were associated with eliminating approximately 90 positions across primarily support, engineering operations and sales and marketing. The Company incurred severance costs of $2.3 million in the year ended December 31, 2014 related to these restructuring activities. The employee-related charges associated with these restructurings were completed during the year ended December 31, 2014. As of June 30, 2015, the Company had an accrued employee-severance liability of $0.1 million related to these severance costs. The Company has incurred facility costs associated with closing offices in Redwood City, California and Englewood, Colorado. At the time of closing these offices, the Company had remaining lease obligations of approximately $3.0 million for these vacated facilities through March 31, 2018. The Company recorded a facilities charge for these future lease payments, less expected sublease income, of $2.1 million during the year ended December 31, 2014. The following table provides a summary of the activity for the six months ended June 30, 2015 related to the Company’s facilities exit costs accrual: Facilities (in thousands) Balance at December 31, 2014 $ 1,855 Cash paid (442 ) Balance at June 30, 2015 $ 1,413

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	14. Commitments and Contingencies From time to time, the Company is involved in legal proceedings or subject to claims arising in the ordinary course of its business, and is currently involved in securities litigation, as described in “Legal Proceedings” in Part II, Item 1 below. The Company is not presently a party to any legal proceedings that in the opinion of management, if determined adversely to the Company, would have a material adverse effect on its business, financial condition, operating results or cash flow. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2015
Related Party Transactions [Abstract]
Related Party Transactions	15. Related Party Transactions The Company has various agreements in place with related parties. Below are details of related party transactions that occurred during the three and six months ended June 30, 2014 and 2015. Tregaron: The Company has contracts with Tregaron India Holdings, LLC and its affiliates, including Diya Systems (Mangalore) Private Limited, Glowtouch Technologies Pvt. Ltd. and Touchweb Designs, LLC, (“Tregaron”), for outsourced services, including email- and chat-based customer and technical support, network monitoring, engineering and development support and web design and web building services. These entities are owned directly or indirectly by family members of the Company’s chief executive officer, who is also a director and stockholder of the Company. During 2013 the Company expanded the services provided by Tregaron under the agreements to include support of a newly formed entity in India related to our acquisition of HostGator India. The Company inadvertently excluded the support of this Indian entity from its related party disclosures for 2013. The amount previously reported as expense for the Tregaron services for the year ended December 31, 2013 was $7.3 million, which will be revised in providing prior period comparative amounts in the footnotes to the consolidated financial statements for the year ended December 31, 2015 to $8.6 million. In addition, the Company has revised amounts reported in the related party disclosures for the quarterly periods during 2014. The full year expenses for Tregaron for 2014 were correctly reported. The following table includes the revised amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the three and six months ended June 30, 2014 relating to services provided by Tregaron and its affiliates under these agreements: Three Months Ended June 30, Six Months Ended June 30, As Reported As Revised 2015 As Reported As Revised 2015 (in thousands) Cost of revenue. $ 1,400 $ 1,700 $ 2,600 $ 2,400 $ 3,400 $ 5,000 Sales and marketing 100 100 200 200 200 300 Engineering and development 300 400 300 500 800 700 General and administrative — 300 100 100 600 200 Total related party transaction expense $ 1,800 $ 2,500 $ 3,200 $ 3,200 $ 5,000 $ 6,200 For the three months ended September 30, 2014, the Company previously reported expenses related to the Tregaron services of $3.8 million, which will be revised to $2.7 million in providing prior period comparative amounts in the footnotes to the consolidated financial statements for the period ended September 30, 2015. The amounts reflected in the consolidated statement of operations and comprehensive loss, consolidated balance sheet and consolidated statement of cash flows for the Tregaron services for all periods during 2013 and 2014 were correctly reflected and do not require revision. As of December 31, 2014, approximately $1.4 million was included in accounts payable and accrued expense relating to services provided by Tregaron. As of June 30, 2014 and 2015, approximately$1.3 million and $1.7 million, respectively, was included in accounts payable and accrued expense relating to services provided by Tregaron. Innovative Business Services, LLC: The Company also has agreements with Innovative Business Services, LLC, (“IBS”), which provides multi-layered third-party security applications that are sold by the Company. IBS is indirectly majority owned by the Company’s chief executive officer and a director of the Company, each of whom are also stockholders of the Company. During the year ended December 31, 2014, the Company’s principal agreement with this entity was amended which resulted in the accounting treatment of expenses being recorded against revenue. During 2013 the Company expanded the services provided by IBS under the agreements across all of its entities. The Company inadvertently excluded the expenses related to the expanded relationship with IBS from related party disclosures for 2013. For the year ended December 31, 2013, the Company previously reported net expenses related to the IBS services of $3.0 million, which will be revised to $3.9 million in providing prior period comparative amounts in the footnote to the consolidated financial statements for the year ended December 31, 2015. In addition, the Company has revised amounts reported in certain quarterly periods and the annual period during 2014. The following table includes the revised amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the three and six months ended June 30, 2014 relating to services provided by IBS under these agreements: Three Months Ended June 30, Six Months Ended June 30, As Reported As Revised 2015 As Reported As Revised 2015 (in thousands) Revenue. $ — $ (100 ) $ (250 ) $ — $ (200 ) $ (400 ) Revenue (contra) — — 1,700 — — 3,500 Total related party transaction impact to revenue $ — $ (100 ) $ 1,450 $ — $ (200 ) $ 3,100 Cost of revenue 1,400 1,400 100 2,000 2,700 300 Total related party transaction expense, net $ 1,400 $ 1,300 $ 1,550 $ 2,000 $ 2,500 $ 3,400 For the three months ended September 30, 2014, the Company previously reported net expenses related to the IBS services of $1.4 million, which will be revised to $1.3 million in providing prior period comparative amounts in the footnotes to the consolidated financial statements for the period ended September 30, 2015. For the year ended December 31, 2014, the Company previously reported net expenses related to the IBS services of $5.4 million, which will be revised to $4.8 million, in providing prior period comparative amounts in the footnotes to the consolidated financial statements for the year ended December 31, 2015. The amounts reflected in the consolidated statement of operations and comprehensive loss, consolidated balance sheet and consolidated statement of cash flows for the IBS services for all periods during 2013 and 2014 were correctly reflected and do not require revision. As of December 31, 2014, approximately $0.9 million was included in accounts payable and accrued expense relating to the Company’s agreements with IBS. As of June 30, 2014 and 2015, approximately $0.9 million and $1.7 million, respectively, was included in accounts payable and accrued expense relating to the Company’s agreements with IBS. As of December 31, 2014, approximately $0.1 million was included in accounts receivable relating to the Company’s agreements with IBS. As of June 30, 2014 and 2015, approximately $0.1 million and $0.1 million, respectively, was included in accounts receivable relating to the Company’s agreements with IBS.

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Preparation	Basis of Preparation The accompanying consolidated financial statements, which include the accounts of the Company and its subsidiaries, have been prepared using accounting principles generally accepted in the United States of America (“U.S. GAAP”). All intercompany transactions have been eliminated on consolidation. The Company has reviewed the criteria of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 280-10, Segment Reporting,
Use of Estimates	Use of Estimates U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. These estimates, judgments and assumptions used in preparing the accompanying consolidated financial statements are based on the relevant facts and circumstances as of the date of the consolidated financial statements. Although the Company regularly assesses these estimates, judgments and assumptions used in preparing the consolidated financial statements, actual results could differ from those estimates. Changes in estimates are recorded in the period in which they become known. The more significant estimates reflected in these consolidated financial statements include estimates of fair value of assets acquired and liabilities assumed under purchase accounting related to the Company’s acquisitions and when evaluating goodwill and long-lived assets for potential impairment, the estimated useful lives of intangible and depreciable assets, stock-based compensation, certain accruals, reserves and deferred taxes.
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying interim consolidated balance sheet as of June 30, 2015, and the related statements of operations and comprehensive loss for the three and six months ended June 30, 2014 and 2015, cash flows for the six months ended June 30, 2014 and 2015, and the notes to consolidated financial statements are unaudited. These unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. The unaudited consolidated financial statements include, in the opinion of management, all adjustments, consisting only of normal recurring adjustments that are necessary for a fair presentation of the Company’s financial position at June 30, 2015, results of operations for the three and six months ended June 30, 2014 and 2015 and cash flows for the six months ended June 30, 2014 and 2015. The consolidated results in the consolidated statements of operations and comprehensive loss are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2015.
Accounts Receivable	Accounts Receivable Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable.
Prepaid Domain Name Registry Fees	Prepaid Domain Name Registry Fees Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a customer. The registry fees are recognized on a straight-line basis over the term of the domain registration period.
Property and Equipment	Property and Equipment Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: Software Two to three years Computers and office equipment Three years Furniture and fixtures Five years Leasehold improvements Shorter of useful life or remaining term of the lease
Software Development Costs	Software Development Costs The Company accounts for software development costs for internal use software under the provisions of ASC 350-40, “Internal-Use Software”
Goodwill	Goodwill Goodwill relates to amounts that arose in connection with the Company’s various acquisitions and represents the difference between the purchase price and the fair value of the identifiable intangible and tangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in the equity value of the business, a significant adverse change in certain agreements that would materially affect reported operating results, business climate or operational performance of the business and an adverse action or assessment by a regulator. In accordance with ASC 350, Intangibles—Goodwill and Other The Company assesses fair value based on current market capitalization. As of December 31, 2014 and June 30, 2015, the fair value of the Company’s reporting unit exceeded the carrying value of the reporting unit’s net assets. Therefore, no impairment existed as of those dates. Determining the fair value of a reporting unit, if applicable, requires the Company to make judgments and involves the use of significant estimates and assumptions. These estimates and assumptions relate to, among other things, revenue growth rates and operating margins used to calculate projected future cash flows, risk-adjusted discount rates, future economic and market conditions and determination of appropriate market comparables. The Company bases its fair value estimates on assumptions it believes to be reasonable but that are unpredictable and inherently uncertain. Actual future results may differ from those estimates. The Company had goodwill of $1,105.0 million and $1,131.2 million as of December 31, 2014 and June 30, 2015, respectively, and no impairment charges have been recorded.
Long-Lived Assets	Long-Lived Assets The Company’s long-lived assets consist primarily of intangible assets, including acquired subscriber relationships, trade names, intellectual property, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangible assets are recorded in connection with its various acquisitions. The Company’s intangible assets are recorded at fair value at the time of their acquisition. The Company amortizes intangible assets over their estimated useful lives. Determination of the estimated useful lives of the individual categories of intangible assets is based on the nature of the applicable intangible asset and the expected future cash flows to be derived from the intangible asset. Amortization of intangible assets with finite lives is recognized in accordance with their estimated projected cash flows. The Company evaluates long-lived intangible and tangible assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If indicators of impairment are present and undiscounted future cash flows are less than the carrying amount, the fair value of the assets is determined and compared to the carrying value. If the fair value is less than the carrying value, then the carrying value of the asset is reduced to the estimated fair value and an impairment loss is charged to expense in the period the impairment is identified. No such impairment losses have been identified in the three and six months ended June 30, 2014 and 2015. Indefinite life intangible assets include domain names that are available for sale which are recorded at cost to acquire. These assets are not being amortized and are being tested for impairment annually and whenever events or changes in circumstance indicate that their carrying value may not be recoverable. When a domain name is sold, the Company records the cost of the domain in cost of revenue.
Acquired In-Process Research and Development (IPR&D)	Acquired In-Process Research and Development (IPR&D) Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified. No such impairment losses have been identified in the three and six months ended June 30, 2014 and 2015. Upon commercialization, the acquired fair value of the IPR&D will be amortized over its estimated useful life.
Revenue Recognition	Revenue Recognition The Company generates revenue primarily from selling subscriptions for cloud-based products and services. The subscriptions are similar across all of the Company’s brands and are provided under contracts pursuant to which the Company has ongoing obligations to support the subscriber. These contracts are generally for service periods of up to 36 months and typically require payment in advance. The Company recognizes the associated revenue ratably over the service period , The Company sells domain name registrations that provide a subscriber with the exclusive use of a domain name. These domains are obtained either by one of the Company’s registrars on the subscriber’s behalf, or by the Company from third-party registrars on the subscriber’s behalf. Domain registration fees are non-refundable. Revenue from the sale of a domain name registration by a registrar within the Company is recognized ratably over the subscriber’s service period as the Company has the obligation to provide support over the domain term. Revenue from the sale of a domain name registration purchased by the Company from a third-party registrar is recognized when the subscriber is billed on a gross basis as there are no remaining Company obligations once the sale to the subscriber occurs, and the Company has full discretion on the sales price and bears all credit risk. Revenue from the sale of premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists, delivery of an authorization key to access the domain name has occurred, the fee for the sale of the premium domain is fixed or determinable, and collection of the fee for the sale of the premium domain is deemed probable. Revenue from the sale of non-term based applications and services, such as certain online security products and professional technical services, referral fees and commissions, is recognized when the product is purchased, the service is provided or the referral fee or commission is earned, respectively. A substantial amount of the Company’s revenue is generated from transactions that are multiple-element service arrangements that may include hosting plans, domain name registrations, and other cloud-based products and services. The Company follows the provisions of the FASB, Accounting Standards Update (“ASU”) No. 2009-13 (“ASU 2009-13”), Revenue Recognition (Topic 605), Multiple-Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force Under ASU 2009-13, to treat deliverables in a multiple-element service arrangement as separate units of accounting, the deliverables must have standalone value upon delivery. If the deliverables have standalone value upon delivery, the Company accounts for each deliverable separately. Hosting services, domain name registrations, cloud-based products and services have standalone value and are often sold separately. When multiple deliverables included in a multiple-element service arrangement are separated into different units of accounting, the total transaction amount is allocated to the identified separate units based on a relative selling price hierarchy. The Company determines the relative selling price for a deliverable based on vendor specific objective evidence (“VSOE”) of fair value, if available, or best estimate of selling price (“BESP”), if VSOE is not available. The Company has determined that third-party evidence of selling price (“TPE”) is not a practical alternative due to differences in its multi-brand offerings compared to competitors and the lack of availability of relevant third-party pricing information. The Company has not established VSOE for its offerings due to lack of pricing consistency, the introduction of new products, services and other factors. Accordingly, the Company generally allocates revenue to the deliverables in the arrangement based on the BESP. The Company determines BESP by considering its relative selling prices, competitive prices in the marketplace and management judgment; these selling prices, however, may vary depending upon the particular facts and circumstances related to each deliverable. The Company analyzes the selling prices used in its allocation of transaction amount, at a minimum, on a quarterly basis. Selling prices are analyzed on a more frequent basis if a significant change in our business necessitates a more timely analysis. The Company maintains a reserve for refunds and chargebacks related to revenue that has been recognized and is expected to be refunded. The Company had a refund and chargeback reserve of $0.6 million and $0.6 million as of December 31, 2014 and June 30, 2015, respectively. The portion of deferred revenue that is expected to be refunded at December 31, 2014 and June 30, 2015 was $2.2 million and $2.3 million, respectively. Based on refund history, a significant majority of refunds happen in the same fiscal month that the customer contract starts or renews. Approximately 75% of all refunds happen in the same fiscal month that the contract starts or renews, and approximately 90% of all refunds happen within 45 days of the contract start or renewal date.
Income Taxes	Income Taxes Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes ASC 740 clarifies the accounting for income taxes by prescribing a minimum recognition threshold that a tax position is required to meet before being recognized in the financial statements. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. There were no unrecognized tax benefits in the three and six months ended June 30, 2014 and 2015. The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three and six months ended June 30, 2014 and 2015, the Company did not recognize any interest and penalties related to unrecognized tax benefits.
Stock-Based Compensation	Stock-Based Compensation The Company follows the provisions of ASC 718, Compensation—Stock Compensation The Company estimates the fair value of employee stock options on the date of grant using the Black-Scholes option-pricing model, which requires the use of highly subjective estimates and assumptions. For restricted stock awards granted, the Company estimates the fair value of each restricted stock award based on the closing trading price of its common stock on the date of grant.
Net Loss per Share	Net Loss per Share The Company considered ASC 260-10, Earnings per Share The Company’s potentially dilutive shares of common stock are excluded from the diluted weighted-average number of shares of common stock outstanding as their inclusion in the computation would be anti-dilutive due to net losses. For the three and six months ended June 30, 2014, and 2015, all non-vested shares granted prior to the Company’s initial public offering in October 2013 (the “IPO”), stock options, restricted stock awards and restricted stock units were excluded from the calculation of diluted earnings per share as their inclusion would have been anti-dilutive as a result of the net losses for these periods. Three Months Ended Six Months Ended 2014 2015 2014 2015 (unaudited) (in thousands, except share amounts and per share data) Net loss attributable to Endurance International Group Holdings, Inc. $ (13,448 ) $ (2,071 ) $ (32,733 ) $ (1,187 ) Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted $ (0.11 ) $ (0.02 ) $ (0.26 ) $ (0.01 ) Weighted-average common shares outstanding used in computing net loss per share attributable to Endurance International Group Holdings, Inc. Basic and diluted 127,225,196 131,186,382 126,844,111 131,091,756
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In February 2015, the FASB issued ASU No. 2015-02, Amendments to the Consolidation Analysis, In April 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest, Simplifying the Presentation of Debt Issuance Costs, In April 2015, the FASB issued ASU No. 2015-05, Intangibles Goodwill and Other—Internal Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Summary of Estimated Useful Lives	Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows: Software Two to three years Computers and office equipment Three years Furniture and fixtures Five years Leasehold improvements Shorter of useful life or remaining term of the lease
Potentially Dilutive Shares of Common Stock Excluded from the Diluted Weighted-average Number of Shares of Common Stock Outstanding	For the three and six months ended June 30, 2014, and 2015, all non-vested shares granted prior to the Company’s initial public offering in October 2013 (the “IPO”), stock options, restricted stock awards and restricted stock units were excluded from the calculation of diluted earnings per share as their inclusion would have been anti-dilutive as a result of the net losses for these periods. Three Months Ended Six Months Ended 2014 2015 2014 2015 (unaudited) (in thousands, except share amounts and per share data) Net loss attributable to Endurance International Group Holdings, Inc. $ (13,448 ) $ (2,071 ) $ (32,733 ) $ (1,187 ) Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted $ (0.11 ) $ (0.02 ) $ (0.26 ) $ (0.01 ) Weighted-average common shares outstanding used in computing net loss per share attributable to Endurance International Group Holdings, Inc. Basic and diluted. 127,225,196 131,186,382 126,844,111 131,091,756

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Summary of Deferred Consideration Related to Acquisition	Summary of Deferred Consideration Related to Acquisitions Components of deferred consideration short-term and long-term as of December 31, 2014 and June 30, 2015, consisted of the following: December 31, 2014 June 30, 2015 Short- Long- Short- Long- (in thousands) Mojoness, Inc. (Acquired in 2012). $ 490 $ 1,370 $ 681 $ 698 Typepad Holdings LLC (Acquired in 2013) — 2,800 — 2,800 Domain name business (Acquired in 2014) 9,027 — — — Webzai Ltd. (Acquired 2014) — 2,617 — 2,729 BuyDomains (Acquired in 2014) — 3,935 — 4,104 Arvixe LLC (Acquired in 2014) 4,400 — 4,400 — JDI Backup Ltd. (Acquired in 2013) — — 10,181 — Verio (Acquired in 2015) — — 2,474 — World Wide Web Hosting (Acquired in 2015) — — 4,600 — Total $ 13,917 $ 10,722 $ 22,336 $ 10,331

Property and Equipment and Ca24

Property and Equipment and Capital Lease Obligations (Tables)	6 Months Ended
	Jun. 30, 2015
Property, Plant and Equipment [Abstract]
Components of Property and Equipment	Components of property and equipment consisted of the following: December 31, 2014 June 30, 2015 (in thousands) Software $ 22,550 $ 25,978 Computers and office equipment 76,274 84,094 Furniture and fixtures 4,045 4,541 Leasehold improvements 7,015 7,245 Construction in process 2,378 4,640 Property and equipment—at cost 112,262 126,498 Less accumulated depreciation (55,425 ) (71,363 ) Property and equipment—net $ 56,837 $ 55,135

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Basis of Fair Value Measurements	The earn-out consideration in the table below is included in total deferred consideration in the Company’s consolidated balance sheets. Basis of Fair Value Measurements Balance Quoted Prices Significant Significant (in thousands) Balance at December 31, 2014: Financial liabilities: Contingent earn-out consideration $ 10,887 — — $ 10,887 Total financial liabilities $ 10,887 — — $ 10,887 Balance at June 30, 2015: Financial liabilities: Contingent earn-out consideration $ 1,379 — — $ 1,379 Total financial liabilities $ 1,379 — — $ 1,379
Significant Unobservable Inputs (Level 3) [Member]
Basis of Fair Value Measurements	The following table summarizes the changes in the financial liabilities measured on a recurring basis using Level 3 inputs as of June 30, 2015 (in thousands): Financial liabilities measured using Level 3 inputs at January 1, 2015 $ 10,887 Payment of contingent earn-out related to 2012 Mojo acquisition (488 ) Payment of contingent earn-out related to 2014 domain name business acquisition (10,104 ) Change in fair value of contingent earn-out 1,084 Financial liabilities measured using Level 3 inputs at June 30, 2015 $ 1,379

Goodwill and Other Intangible26

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill Balances	The following table summarizes the changes in the Company’s goodwill balances from December 31, 2014 to June 30, 2015 (in thousands): Goodwill balance at December 31, 2014 $ 1,105,023 Goodwill related to 2015 acquisitions 26,770 Foreign translation impact (549 ) Goodwill balance at June 30, 2015 $ 1,131,244
Summary of Other Intangible Assets	At June 30, 2015, other intangible assets consisted of the following: Gross Accumulated Net Carrying Weighted (in thousands) Developed technology $ 205,785 $ 69,045 $ 136,740 7 years Subscriber relationships 387,513 228,957 158,556 5 years Trade names 81,571 36,806 44,765 6 years Intellectual property 29,528 4,795 24,733 13 years Domain names available for sale 27,319 1,810 25,509 Indefinite Leasehold interests 314 301 13 1 year In-process research and development 1,503 — 1,503 — Total June 30, 2015 $ 733,533 $ 341,714 $ 391,819

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Summary of Statement of Operations and Comprehensive Loss for Equity Method Investment	The following table presents a summary of the statement of operations and comprehensive loss for WZ UK Ltd. for the three and six months ended June 30, 2015: Three Six Months (in thousands) Revenue $ 440 $ 476 Gross profit (loss) $ 18 $ (95 ) Operating loss $ (6,618 ) $ (8,407 ) Net loss $ (6,618 ) $ (8,407 )

Notes Payable (Tables)

Notes Payable (Tables)	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Summary of Interest Rates and Interest Expense	The following table provides a summary of interest rates and interest expense for the three and six months ended June 30, 2014 and 2015: Three Months Ended Three Months Ended Six Months Ended Six Months Ended (dollars in thousands) Interest rate—LIBOR 5.00%-7.75 % 5.00%-7.75 % 5.00%-7.75 % 5.00%-7.75 % Interest rate—reference 8.50 % 8.50 % 8.50 % 8.50 % Non-refundable fee—unused facility 0.50 % 0.50 % 0.50 % 0.50 % Interest expense and service fees $ 13,956 $ 13,703 $ 27,307 $ 27,679 Amortization of deferred financing fees $ 19 $ 21 $ 38 $ 41 Amortization of net present value of deferred consideration $ — $ 143 $ 6 $ 281 Interest expense for capital lease obligations $ 131 $ 86 $ 274 $ 184 Interest expense for deferred consideration promissory note $ 70 $ 70 $ 140 $ 140 Other interest expense $ 1 $ (12) $ 47 $ 7 Total interest expense $ 14,177 $ 14,011 $ 27,812 $ 28,332

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Summary of Changes in Stockholders' Equity	The following table presents the changes in total stockholders’ equity: Total (in thousands) Balance, December 31, 2014 $ 174,496 Stock-based compensation 10,510 Stock option exercises 652 Foreign currency translation adjustment (522 ) Net loss (1,187 ) Balance, June 30, 2015 $ 183,949

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2015
Summary of Total Stock-Based Compensation Expense	The following table presents total stock-based compensation expense recorded in the consolidated statement of operations and comprehensive loss for all 2012 restricted stock awards and units issued prior to the IPO and all awards granted under the Company’s 2013 Stock Incentive Plan (the “2013 Plan”) in connection with or subsequent to the IPO: Three Months Ended Six Months Ended 2014 2015 2014 2015 (in thousands) Cost of revenue $ 114 $ 646 $ 246 $ 759 Sales and marketing 385 845 753 1,235 Engineering and development 180 487 373 704 General and administrative 2,950 4,561 5,801 7,812 Total stock-based compensation expense $ 3,629 $ 6,539 $ 7,173 $ 10,510
Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's IPO	The following table provides a summary of the 2012 restricted stock awards activity for the six months ended June 30, 2015 for restricted stock awards that were granted prior to the IPO: 2012 Restricted Stock Awards Non-vested at December 31, 2014 759,122 Vested (322,524 ) Canceled (18,349 ) Non-vested at June 30, 2015 418,249
Summary of Restricted Stock Units that were Granted in Connection with IPO and the Non-Vested Balance	The following table provides a summary of the activity for the six months ended June 30, 2015 for the restricted stock units that were granted in connection with the IPO and the non-vested balance as of June 30, 2015: Restricted Stock Units Weighted Non-vested at December 31, 2014 155,094 $ 12.00 Vested and unissued (66,468 ) $ 12.00 Non-vested at June 30, 2015 88,626 $ 12.00
Summary of Stock Options	The following table provides a summary of the Company’s stock options as of June 30, 2015 and the stock option activity for all stock options granted under the 2013 Plan during the six months ended June 30, 2015: Stock Weighted- Weighted- Aggregate Outstanding at December 31, 2014 5,407,959 $ 12.07 Granted 1,985,701 $ 18.29 Exercised (54,318 ) $ 12.00 Forfeited/ canceled (37,920 ) $ 12.44 Outstanding at June 30, 2015 7,301,422 $ 13.76 8.6 $ 50,401 Exercisable at June 30, 2015 2,161,767 $ 12.00 8.3 $ 18,713 Expected to vest after June 30, 2015 (1) 5,042,545 $ 14.45 8.8 $ 31,318 Exercisable as of June 30, 2015 and expected to vest thereafter (2) 7,204,312 $ 13.72 8.6 $ 50,031 (1) This represents the number of unvested options outstanding as of June 30, 2015 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate. (2) This represents the number of vested options as of June 30, 2015 plus the number of unvested options outstanding as of June 30, 2015 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate. (3) The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on June 30, 2015 of $20.66 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.
Restricted Stock Awards [Member]
Summary of Restricted Stock Awards and Restricted Stock Units	The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the six months ended June 30, 2015: Restricted Stock Weighted Non-vested at December 31, 2014 695,312 $ 12.40 Granted 746,525 $ 18.32 Vested (11,212 ) $ 13.60 Canceled (23,157 ) $ 12.38 Non-vested at June 30, 2015 1,407,468 $ 15.53
Restricted Stock Units [Member]
Summary of Restricted Stock Awards and Restricted Stock Units	The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the six months ended June 30, 2015: Restricted Stock Units Weighted Non-vested at December 31, 2014 341,161 $ 12.00 Vested and unissued (60,198 ) $ 12.00 Non-vested at June 30, 2015 280,963 $ 12.00

Severance and Other Exit Costs

Severance and Other Exit Costs (Tables)	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Summary of Activity Related to Company's Facilities Exit Costs Accrual	The following table provides a summary of the activity for the six months ended June 30, 2015 related to the Company’s facilities exit costs accrual: Facilities (in thousands) Balance at December 31, 2014 $ 1,855 Cash paid (442 ) Balance at June 30, 2015 $ 1,413

Related Party Transactions (Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2015
Immediate Family Member of Management or Principal Owner [Member]
Summary of Related Party Transactions	The following table includes the revised amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the three and six months ended June 30, 2014 relating to services provided by Tregaron and its affiliates under these agreements: Three Months Ended June 30, Six Months Ended June 30, As Reported As Revised 2015 As Reported As Revised 2015 (in thousands) Cost of revenue. $ 1,400 $ 1,700 $ 2,600 $ 2,400 $ 3,400 $ 5,000 Sales and marketing 100 100 200 200 200 300 Engineering and development 300 400 300 500 800 700 General and administrative — 300 100 100 600 200 Total related party transaction expense $ 1,800 $ 2,500 $ 3,200 $ 3,200 $ 5,000 $ 6,200
Director [Member]
Summary of Related Party Transactions	The following table includes the revised amounts of related party transactions recorded in the consolidated statements of operations and comprehensive loss for the three and six months ended June 30, 2014 relating to services provided by IBS under these agreements: Three Months Ended June 30, Six Months Ended June 30, As Reported As Revised 2015 As Reported As Revised 2015 (in thousands) Revenue. $ — $ (100 ) $ (250 ) $ — $ (200 ) $ (400 ) Revenue (contra) — — 1,700 — — 3,500 Total related party transaction impact to revenue $ — $ (100 ) $ 1,450 $ — $ (200 ) $ 3,100 Cost of revenue 1,400 1,400 100 2,000 2,700 300 Total related party transaction expense, net $ 1,400 $ 1,300 $ 1,550 $ 2,000 $ 2,500 $ 3,400

Nature of Business - Additional

Nature of Business - Additional Information (Detail) - USD ($)	Mar. 11, 2015	Mar. 06, 2015	Nov. 26, 2014	Nov. 20, 2014	Jun. 30, 2015	Dec. 31, 2014
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, shares issued					131,305,352	130,959,113
Follow-On Public Offering [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, shares issued			3,000,000	3,000,000
Common stock, per share	$ 19		$ 14.50
Number of shares sold by the selling stockholders	12,000,000		10,000,000
Gross proceeds from issuance of common stock			$ 43,500,000
Net proceeds from issuance of common stock			41,100,000
Underwriting discounts and commissions			1,700,000
Stock issuance cost			$ 700,000
Over-Allotment Option [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of shares sold by the selling stockholders	1,800,000		1,950,000
Selling Stockholders [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of shares sold by the selling stockholders		13,800,000		11,950,000
Net proceeds from issuance of common stock		$ 0		$ 0
Stock issuance cost	$ 700,000		$ 300,000

Summary of Significant Accoun34

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)Segment	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Accounting Policies [Line Items]
Number of reportable segments | Segment			1
Software development cost capitalized	$ 1,500,000	$ 1,300,000	$ 2,800,000	$ 2,400,000
Impairment			0		$ 0
Goodwill	1,131,244,000		1,131,244,000		1,105,023,000
Impairment charges			0		0
Impairment loss charged to expense	0	0	$ 0	0
Contract service period			36 months
Reserves for refunds and chargebacks	600,000		$ 600,000		600,000
Deferred revenue expected to be refunded	2,300,000		$ 2,300,000		$ 2,200,000
Percentage of deferred revenue refunded within same fiscal month			75.00%
Percentage of deferred revenue refunded within 45 days			90.00%
Unrecognized tax benefits	0	0	$ 0	0
Interest expense and penalties	0	0	0	0
IPR&D [Member]
Accounting Policies [Line Items]
Impairment loss charged to expense	$ 0	$ 0	$ 0	$ 0

Summary of Significant Accoun35

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail)	6 Months Ended
	Jun. 30, 2015
Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	2 years
Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements	Shorter of useful life or remaining term of the lease

Summary of Significant Accoun36

Summary of Significant Accounting Policies - Potentially Dilutive Shares of Common Stock Excluded from the Diluted Weighted-average Number of Shares of Common Stock Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accounting Policies [Abstract]
Net loss attributable to Endurance International Group Holdings, Inc.	$ (2,071)	$ (13,448)	$ (1,187)	$ (32,733)
Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted	$ (0.02)	$ (0.11)	$ (0.01)	$ (0.26)
Weighted-average common shares outstanding used in computing net loss per share attributable to Endurance International Group Holdings, Inc. Basic and diluted	131,186,382	127,225,196	131,091,756	126,844,111

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 25, 2015	May. 26, 2015	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill			$ 1,131,244	$ 1,131,244	$ 1,105,023
Gain recognized on redemption				5,440
Revenue from acquisitions			$ 1,100	$ 1,100
Subscriber Relationships [Member]
Business Acquisition [Line Items]
Weighted average useful life				4 years 1 month 6 days
Trade-Names [Member]
Business Acquisition [Line Items]
Weighted average useful life				3 years
Verio [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price		$ 13,000
Business acquisition, cash paid		10,500
Business acquisition, remaining consideration		2,500
Goodwill		2,000
Deferred revenue		1,400
Verio [Member] | Subscriber Relationships [Member]
Business Acquisition [Line Items]
Long-lived intangible assets		12,300
Verio [Member] | Trade-Names [Member]
Business Acquisition [Line Items]
Long-lived intangible assets		$ 100
World Wide Web Hosting, LLC [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price	$ 34,900
Business acquisition, cash paid	18,400
Business acquisition, remaining consideration	4,600
Goodwill	24,800
Deferred revenue	2,500
Business acquisition, cash payable	23,000
Business acquisition, contribution of investment interest	11,900
Gain recognized on redemption	5,400
Prepaid expense and other current assets	200
World Wide Web Hosting, LLC [Member] | Subscriber Relationships [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	10,700
World Wide Web Hosting, LLC [Member] | Trade-Names [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	$ 1,700

Acquisitions - Summary of Defer

Acquisitions - Summary of Deferred Consideration Related to Acquisition (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Deferred consideration short-term	$ 22,336	$ 13,917
Deferred consideration long-term	10,331	10,722
Mojoness Inc [Member]
Business Acquisition [Line Items]
Deferred consideration short-term	681	490
Deferred consideration long-term	698	1,370
Typepad Holdings LLC [Member]
Business Acquisition [Line Items]
Deferred consideration long-term	2,800	2,800
Domain Name Business [Member]
Business Acquisition [Line Items]
Deferred consideration short-term		9,027
WebZai Ltd [Member]
Business Acquisition [Line Items]
Deferred consideration long-term	2,729	2,617
BuyDomains [Member]
Business Acquisition [Line Items]
Deferred consideration long-term	4,104	3,935
Arvixe LLC [Member]
Business Acquisition [Line Items]
Deferred consideration short-term	4,400	$ 4,400
JDI Backup Ltd. [Member]
Business Acquisition [Line Items]
Deferred consideration short-term	10,181
Verio [Member]
Business Acquisition [Line Items]
Deferred consideration short-term	2,474
World Wide Web Hosting, LLC [Member]
Business Acquisition [Line Items]
Deferred consideration short-term	$ 4,600

Property and Equipment and Ca39

Property and Equipment and Capital Lease Obligations - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	$ 126,498	$ 112,262
Less accumulated depreciation	(71,363)	(55,425)
Property and equipment-net	55,135	56,837
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	25,978	22,550
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	84,094	76,274
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	4,541	4,045
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	7,245	7,015
Construction in Process [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	$ 4,640	$ 2,378

Property and Equipment and Ca40

Property and Equipment and Capital Lease Obligations - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Line Items]
Depreciation expense			$ 16,095	$ 14,548
Property and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 8,200	$ 7,500	16,100	$ 14,500
Software [Member]
Property, Plant and Equipment [Line Items]
Property under capital lease	11,700		11,700
Net carrying value of property under capital lease	$ 5,900		$ 5,900

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - Fair Value, Measurements, Recurring [Member] - Significant Unobservable Inputs (Level 3) [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of the earn-out consideration	$ 1,084
Mojoness Inc [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount paid to earn-out provisions	(488)
Domain Name Business [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount paid to earn-out provisions	$ (10,104)

Fair Value Measurements - Basis

Fair Value Measurements - Basis of Fair Value Measurements (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financial liabilities:
Contingent earn-out consideration	$ 1,379	$ 10,887
Total financial liabilities	1,379	10,887
Significant Unobservable Inputs (Level 3) [Member]
Financial liabilities:
Contingent earn-out consideration	1,379	10,887
Total financial liabilities	$ 1,379	$ 10,887

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Changes in the Financial Liabilities Measured on a Recurring Basis Using Level 3 Inputs (Detail) - Significant Unobservable Inputs (Level 3) [Member] - Fair Value, Measurements, Recurring [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial liabilities measured using Level 3 inputs, Opening balance	$ 10,887
Change in fair value of contingent earn-out	1,084
Financial liabilities measured using Level 3 inputs, Ending balance	1,379
Mojoness Inc [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment of contingent earn-out related to acquisition	(488)
Domain Name Business [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payment of contingent earn-out related to acquisition	$ (10,104)

Goodwill and Other Intangible44

Goodwill and Other Intangible Assets - Changes in Goodwill Balances (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, beginning balance	$ 1,105,023
Goodwill related to acquisitions	26,770
Foreign translation impact	(549)
Goodwill, ending balance	$ 1,131,244

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 733,533
Accumulated Amortization	341,714
Net Carrying Amount	391,819	$ 410,338
Domains Names Available for Sale [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,319
Accumulated Amortization	1,810
Net Carrying Amount	$ 25,509
Weighted Average Useful Life	Indefinite
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 205,785
Accumulated Amortization	69,045
Net Carrying Amount	$ 136,740
Weighted Average Useful Life	7 years
Subscriber Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 387,513
Accumulated Amortization	228,957
Net Carrying Amount	$ 158,556
Weighted Average Useful Life	5 years
Trade-Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 81,571
Accumulated Amortization	36,806
Net Carrying Amount	$ 44,765
Weighted Average Useful Life	6 years
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 29,528
Accumulated Amortization	4,795
Net Carrying Amount	$ 24,733
Weighted Average Useful Life	13 years
Leasehold Interests [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 314
Accumulated Amortization	301
Net Carrying Amount	$ 13
Weighted Average Useful Life	1 year
IPR&D [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,503
Net Carrying Amount	$ 1,503

Goodwill and Other Intangible46

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense included in cost of revenue	$ 22,100	$ 25,400	$ 43,433	$ 49,541

Investments - Additional Inform

Investments - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 25, 2015	Jan. 13, 2015	Jul. 07, 2014	Dec. 11, 2013	Oct. 31, 2013	Dec. 31, 2014	May. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Aug. 31, 2014	Jun. 30, 2013	Jul. 31, 2012	Jan. 31, 2012
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition						$ 40,400		$ 29,400		$ 29,400
Purchase of products and services								104,937	$ 92,611	205,911	$ 181,802
Accounts payable						8,960		11,765		11,765
Accrued expense						$ 38,275		44,623		44,623
Gain recognized on redemption										5,440
Proceeds from note receivable										3,454
Recognized net (income)loss								$ 3,458	(89)	$ 4,566	(110)
Proportionate share exceed of the company's consolidated assets or income						10.00%		10.00%		10.00%
Equity method investment, description										The Company did not have an equity method investment in which the Company's proportionate share exceeded 10% of the Company's consolidated assets or income from continuing operations.
Minimum [Member]
Schedule of Cost-method Investments [Line Items]
Voting interest								20.00%		20.00%
Maximum [Member]
Schedule of Cost-method Investments [Line Items]
Voting interest								50.00%		50.00%
World Wide Web Hosting, LLC [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition														$ 10,000
Ownership interest					40.00%									50.00%
Ownership interest percentage					20.00%
Percentage of companies capital stock sold					10.00%
Interest note receivable					$ 1,500
Total notes receivable					3,500
Increase (decrease) in investment					(1,500)
Impairment on the remaining investment					$ 2,600
Business acquisition, contribution of investment interest	$ 11,900
Gain recognized on redemption	5,400
Proceeds from note receivable	$ 3,500
JDI Backup Ltd. [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition													$ 8,800
Percentage of acquisition													17.50%
Ownership percentage		100.00%	67.00%	60.00%				100.00%		100.00%
Increase in investments		$ 30,500	$ 4,200	$ 22,200
Bluezone Labs, LLC [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition															$ 300
Ownership interest															25.00%
Purchase of products and services								$ 300	300	$ 600	500
Accounts payable								100	100	100	100
Accrued expense								200	$ 200	200	$ 200
WZ UK Ltd. [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition												$ 3,900
Ownership interest												49.00%
Increase (decrease) in investment								7,400		$ 7,400
Rate on royalty on billing										4.50%
Royalty revenue								100		$ 100
Recognized net (income)loss								3,200		4,100
Assets reported in equity method investment						$ 5,600		2,000		2,000
Liabilities reported in equity method investment						6,300		$ 11,100		$ 11,100
AppMachine [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition						$ 15,200
Ownership interest						40.00%
Remaining percentage of acquisition						60.00%
Periodic payment on equity method investment, percentage						20.00%
Periodic payment on equity method investment determination percentage						20.00%
Automattic [Member]
Schedule of Cost-method Investments [Line Items]
Investment made on asset							$ 15,000
Percentage of outstanding shares invested							5.00%

Investments - Summary of Statem

Investments - Summary of Statement of Operations and Comprehensive Loss for Equity Method Investment (Detail) - Jun. 30, 2015 - WZ UK Ltd. [Member] - USD ($) $ in Thousands	Total	Total
Schedule of Equity Method Investments [Line Items]
Revenue	$ 440	$ 476
Gross profit (loss)	18	(95)
Operating loss	(6,618)	(8,407)
Net loss	$ (6,618)	$ (8,407)

Notes Payable - Additional Info

Notes Payable - Additional Information (Detail) - USD ($)	Nov. 25, 2013	Nov. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Long-Term Debt [Line Items]
Current portion of notes payable			$ 45,500,000		$ 45,500,000		$ 60,500,000
Mandatory repayments on term loan					5,250,000	$ 5,250,000
Borrowing from revolving credit facility					38,000,000	55,000,000
Repayment of revolving credit facility					53,000,000	22,000,000
Interest expense			14,011,000	$ 14,177,000	28,332,000	27,812,000
Bank Revolving Loan [Member]
Long-Term Debt [Line Items]
Notes payable amount outstanding			35,000,000		35,000,000		50,000,000
Revolving credit facility increase in borrowing capacity			40,000,000		40,000,000
Aggregate principal amount not to exceed			125,000,000		$ 125,000,000
Revolver maturity period					Dec. 22, 2016
Borrowing from revolving credit facility					$ 38,000,000
Repayment of revolving credit facility					53,000,000
Bank Revolver Loans [Member]
Long-Term Debt [Line Items]
First lien term loan outstanding			35,000,000		35,000,000
Senior Notes 7.75% [Member] | Bank Revolver Loans [Member]
Long-Term Debt [Line Items]
Principal amount of term loan outstanding			$ 19,000,000		$ 19,000,000
Interest at LIBOR based rates			7.75%		7.75%
Senior Notes 8.50% [Member] | Bank Revolver Loans [Member]
Long-Term Debt [Line Items]
Principal amount of term loan outstanding			$ 16,000,000		$ 16,000,000
Interest at LIBOR based rates			8.50%		8.50%
November 2013 First Lien [Member]
Long-Term Debt [Line Items]
Current portion of notes payable			$ 10,500,000		$ 10,500,000		10,500,000
First lien term loan outstanding		$ 1,050,000,000
Mandatory repayments on term loan		2,600,000			$ 2,600,000	$ 2,600,000
Additional repayment of term loan		166,200,000
Maturity date					Nov. 9, 2019
November 2012 Second Lien [Member]
Long-Term Debt [Line Items]
Mandatory repayments on term loan		$ 315,000,000
LIBOR Based Interest Rate Loan [Member]
Long-Term Debt [Line Items]
LIBOR based interest rate reduced	4.00%
Greater of the LIBOR rate	1.00%
Reference Rate Loan [Member]
Long-Term Debt [Line Items]
Debt instrument reference rate	3.00%
Percentage points added to federal funds effective rate	0.50%
Adjusted LIBOR rate	2.00%
London Interbank Offered Rate (LIBOR) [Member]
Long-Term Debt [Line Items]
Principal amount of term loan outstanding			$ 1,031,600,000		$ 1,031,600,000		$ 1,036,900,000
London Interbank Offered Rate (LIBOR) [Member] | First Lien [Member]
Long-Term Debt [Line Items]
Interest at LIBOR based rates			5.00%		5.00%

Notes Payable - Schedule of Int

Notes Payable - Schedule of Interest Rates and Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Long-Term Debt [Line Items]
Interest rate-reference	8.50%	8.50%	8.50%	8.50%
Non-refundable fee-unused facility	0.50%	0.50%	0.50%	0.50%
Interest expense and service fees	$ 13,703	$ 13,956	$ 27,679	$ 27,307
Amortization of deferred financing fees	21	19	41	38
Amortization of net present value of deferred consideration	143		281	6
Interest expense for capital lease obligations	86	131	184	274
Other interest expense	(12)	1	7	47
Total interest expense	14,011	14,177	28,332	27,812
Promissory Note [Member]
Long-Term Debt [Line Items]
Interest expense for deferred consideration promissory note	$ 70	$ 70	$ 140	$ 140
Minimum [Member]
Long-Term Debt [Line Items]
Interest rate-LIBOR	5.00%	5.00%	5.00%	5.00%
Maximum [Member]
Long-Term Debt [Line Items]
Interest rate-LIBOR	7.75%	7.75%	7.75%	7.75%

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - $ / shares	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Equity [Abstract]
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	500,000,000	500,000,000
Common stock, par value	$ 0.0001	$ 0.0001
Number of vote per share	$ 1

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Equity [Abstract]
Beginning balance			$ 174,496
Stock-based compensation	$ 6,539	$ 3,629	10,510	$ 7,173
Stock option exercises			652
Foreign currency translation adjustment	94	26	(522)	48
Net loss	(2,071)	$ (16,132)	(1,187)	$ (38,601)
Ending balance	$ 183,949		$ 183,949

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Total Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	$ 6,539	$ 3,629	$ 10,510	$ 7,173
Cost of Revenue [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	646	114	759	246
Sales and Marketing [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	845	385	1,235	753
Engineering and Development [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	487	180	704	373
General and Administrative [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	$ 4,561	$ 2,950	$ 7,812	$ 5,801

Stock-Based Compensation - Su54

Stock-Based Compensation - Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's IPO (Detail) - 2012 Restricted Stock Awards [Member] - Restricted Stock Awards [Member]	6 Months Ended
	Jun. 30, 2015shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	759,122
Vested	(322,524)
Canceled	(18,349)
Non-vested, Ending balance	418,249

Stock-Based Compensation - Su55

Stock-Based Compensation - Summary of Restricted Stock Units that were Granted in Connection with IPO and the Non-Vested Balance (Detail) - 6 months ended Jun. 30, 2015 - Prior Equity Plan [Member] - Restricted Stock Units [Member] - $ / shares	Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	155,094
Vested and unissued	(66,468)
Non-vested, Ending balance	88,626
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$ 12
Weighted Average Grant Date Fair Value, Vested and unissued	12
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$ 12

Stock-Based Compensation - Su56

Stock-Based Compensation - Summary of Stock Options (Detail) - Jun. 30, 2015 - 2013 Stock Incentive Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options, Outstanding	5,407,959
Stock Options, Granted	1,985,701
Stock Options, Exercised	(54,318)
Stock Options, Forfeited/ canceled	(37,920)
Stock Options, Outstanding	7,301,422
Stock Options, Exercisable at June 30, 2015	2,161,767
Stock Options, Expected to vest after June 30, 2015	5,042,545
Stock Options, Exercisable as of June 30, 2015 and expected to vest thereafter	7,204,312
Weighted - Average Exercise Price, Outstanding	$ 12.07
Weighted - Average Exercise Price, Granted	18.29
Weighted - Average Exercise Price, Exercised	12
Weighted - Average Exercise Price, Forfeited/ canceled	12.44
Weighted - Average Exercise Price, Outstanding	13.76
Weighted - Average Exercise Price, Exercisable at June 30, 2015	12
Weighted - Average Exercise Price, Expected to vest after June 30, 2015	14.45
Weighted - Average Exercise Price, Exercisable as of June 30, 2015 and expected to vest thereafter	$ 13.72
Weighted - Average Remaining Contractual Term, Outstanding	8 years 7 months 6 days
Weighted - Average Remaining Contractual Term, Exercisable at June 30, 2015	8 years 3 months 18 days
Weighted - Average Remaining Contractual Term, Expected to vest after June 30, 2015	8 years 9 months 18 days
Weighted - Average Remaining Contractual Term, Exercisable as of June 30, 2015 and expected to vest thereafter	8 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding	$ 50,401
Aggregate Intrinsic Value, Exercisable at June 30, 2015	18,713
Aggregate Intrinsic Value, Expected to vest after June 30, 2015	31,318
Aggregate Intrinsic Value, Exercisable as of June 30, 2015 and expected to vest thereafter	$ 50,031

Stock-Based Compensation - Su57

Stock-Based Compensation - Summary of Stock Options (Parenthetical) (Detail)	6 Months Ended
	Jun. 30, 2015$ / shares
2013 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated fair value of the Company's common stock	$ 20.66

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2015
2013 Stock Incentive Plan [Member] | Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years

Stock-Based Compensation - Su59

Stock-Based Compensation - Summary of Restricted Stock Awards and Restricted Stock Units (Detail) - 6 months ended Jun. 30, 2015 - 2013 Stock Incentive Plan [Member] - $ / shares	Total
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	695,312
Granted	746,525
Vested	(11,212)
Canceled	(23,157)
Non-vested, Ending balance	1,407,468
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$ 12.40
Weighted Average Grant Date Fair Value, Granted	18.32
Weighted Average Grant Date Fair Value, Vested	13.60
Weighted Average Grant Date Fair Value, Canceled	12.38
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$ 15.53
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	341,161
Vested	(60,198)
Non-vested, Ending balance	280,963
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$ 12
Weighted Average Grant Date Fair Value, Vested	12
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$ 12

Redeemable Non-controlling In60

Redeemable Non-controlling Interest - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 13, 2015	Jun. 30, 2015	Dec. 31, 2014	Jul. 07, 2014	Dec. 31, 2013	Dec. 11, 2013
Redeemable Noncontrolling Interest [Line Items]
Redeemable non-controlling interest			$ 30,543		$ 20,800
Partial settlement of redeemable non-controlling interest liability		$ 20,362
JDI Backup Ltd. [Member]
Redeemable Noncontrolling Interest [Line Items]
Partial settlement of redeemable non-controlling interest liability			4,200
Change in estimated fair value			$ 30,500
Cost of acquisition	$ 30,500
Ownership percentage	100.00%	100.00%		67.00%		60.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	Mar. 11, 2015	Mar. 06, 2015	Nov. 26, 2014	Nov. 20, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Unrecognized tax positions					$ 0		$ 0		$ 0
Cumulative pre-tax book loss position period							3 years
Valuation allowance									69,300,000
Tax expense					2,707,000	$ 1,048,000	$ 3,685,000	$ 4,487,000
Federal and state current income taxes					800,000		1,100,000
Foreign current tax					300,000		700,000
Deferred tax expense					1,700,000		2,200,000
Reduction of valuation allowance					100,000		300,000
Foreign deferred tax expense							$ 100,000
Amount of net operating loss carry-forwards available to offset future U.S. federal taxable income									158,900,000
Amount of net operating loss carry-forwards available to offset future state taxable income									158,500,000
Expire date of carry-forwards							Through 2,033
Capital loss carry-forwards									400,000
Loss carry-forwards available to future foreign taxable income									$ 37,200,000
Net operating loss carry-forwards					$ 77,100,000		$ 77,100,000
Common stock, shares issued					131,305,352		131,305,352		130,959,113
Follow-On Public Offering [Member]
Operating Loss Carryforwards [Line Items]
Common stock, shares issued			3,000,000	3,000,000
Shares of common stock from the selling stockholders	12,000,000		10,000,000
Proceeds from sale of shares			$ 41,100,000
Selling Stockholders [Member]
Operating Loss Carryforwards [Line Items]
Shares of common stock from the selling stockholders		13,800,000		11,950,000
Proceeds from sale of shares		$ 0		$ 0
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Loss carry-forwards, expiration date									2,018
Federal NOL carry-forward									$ 800,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Federal NOL carry-forward									$ 200,000
India [Member]
Operating Loss Carryforwards [Line Items]
Loss carry-forwards, expiration date									2,021
Loss carry-forwards available to future foreign taxable income									$ 2,700,000
United Kingdom [Member]
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income									$ 34,300,000

Severance and Other Exit Cost62

Severance and Other Exit Costs - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2014USD ($)Positions	Jun. 30, 2015USD ($)
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | Positions	90
Severance cost incurred to date	$ 2.3
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other exit costs accrued		$ 0.1
Redwood City [Member]
Restructuring Cost and Reserve [Line Items]
Remaining lease obligations	3
Facilities charge	$ 2.1

Severance and Other Exit Cost63

Severance and Other Exit Costs - Summary of Activity Related to Company's Facilities Exit Costs Accrual (Detail) - Facility Closing [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 1,855
Cash paid	(442)
Ending Balance	$ 1,413

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Net expense	$ (12,548)		$ 1,085	$ (29,747)	$ 6,584
Amount included in accounts receivable	10,030			10,030		$ 10,201
Immediate Family Member of Management or Principal Owner [Member]
Related Party Transaction [Line Items]
Related party transaction expense	3,200	$ 2,700	2,500	6,200	5,000		$ 8,600
Amount included in accounts payable and accrued expense	1,700		1,300	1,700	1,300	1,400
Chief Executive Officer and a Director [Member]
Related Party Transaction [Line Items]
Related party transaction expense	1,550		1,300	3,400	2,500
Amount included in accounts payable and accrued expense	1,700		900	1,700	900	900
Net expense		1,300				4,800	3,900
Amount included in accounts receivable	$ 100		100	$ 100	100	100
As Reported [Member] | Immediate Family Member of Management or Principal Owner [Member]
Related Party Transaction [Line Items]
Related party transaction expense		3,800	1,800		3,200		7,300
As Reported [Member] | Chief Executive Officer and a Director [Member]
Related Party Transaction [Line Items]
Related party transaction expense			$ 1,400		$ 2,000
Net expense		$ 1,400				$ 5,400	$ 3,000

Related Party Transactions - Su

Related Party Transactions - Summary of Related Party Transactions (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Revenue	$ (182,431)		$ (151,992)	$ (359,749)	$ (297,742)
Cost of revenue	104,937		92,611	205,911	181,802
Sales and marketing	37,224		38,225	72,268	79,849
Engineering and development	6,633		5,365	12,004	10,318
General and administrative	21,089		16,876	39,819	32,357
Immediate Family Member of Management or Principal Owner [Member]
Related Party Transaction [Line Items]
Cost of revenue	2,600		1,700	5,000	3,400
Sales and marketing	200		100	300	200
Engineering and development	300		400	700	800
General and administrative	100		300	200	600
Total related party transaction expense, net	3,200	$ 2,700	2,500	6,200	5,000	$ 8,600
Chief Executive Officer and a Director [Member]
Related Party Transaction [Line Items]
Revenue	(250)		(100)	(400)	(200)
Revenue (contra)	1,700			3,500
Total related party transaction impact to revenue	1,450		(100)	3,100	(200)
Cost of revenue	100		1,400	300	2,700
Total related party transaction expense, net	$ 1,550		1,300	$ 3,400	2,500
As Reported [Member] | Immediate Family Member of Management or Principal Owner [Member]
Related Party Transaction [Line Items]
Cost of revenue			1,400		2,400
Sales and marketing			100		200
Engineering and development			300		500
General and administrative					100
Total related party transaction expense, net		$ 3,800	1,800		3,200	$ 7,300
As Reported [Member] | Chief Executive Officer and a Director [Member]
Related Party Transaction [Line Items]
Cost of revenue			1,400		2,000
Total related party transaction expense, net			$ 1,400		$ 2,000