Endurance International 10-Q9 May 142014 Q1 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
Document and Entity Information	Mar. 31, 2014	Apr. 30, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Entity Registrant Name	'Endurance International Group Holdings, Inc.	'
Entity Central Index Key	'0001237746	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	129,085,184

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:	'	'
Cash and cash equivalents	$51,784	$66,815
Restricted cash	2,312	1,983
Accounts receivable	11,176	7,160
Deferred tax asset-short term	14,594	12,981
Prepaid expenses and other current assets	43,137	29,862
Total current assets	123,003	118,801
Property and equipment-net	63,188	49,715
Goodwill	1,074,302	984,207
Other intangible assets-net	405,771	406,140
Deferred financing costs	423	430
Investments	6,556	6,535
Other assets	10,191	15,110
Total assets	1,683,434	1,580,938
Current liabilities:	'	'
Accounts payable	10,845	7,950
Accrued expenses	39,719	35,433
Deferred revenue	222,946	194,196
Current portion of notes payable	10,500	10,500
Current portion of capital lease obligations	3,654	'
Deferred consideration-short term	58,740	24,437
Other current liabilities	10,785	6,796
Total current liabilities	357,189	279,312
Long-term deferred revenue	63,600	55,298
Notes payable-long term	1,034,250	1,036,875
Capital lease obligations	7,165	'
Deferred tax liability-long term	32,032	26,171
Deferred consideration	3,760	4,207
Other liabilities	2,831	3,041
Total liabilities	1,500,827	1,404,904
Redeemable non-controlling interest	21,323	20,772
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; 124,788,853 and 127,083,332 shares issued at December 31, 2013 and March 31, 2014, respectively; 124,766,544 and 127,052,406 outstanding at December 31, 2013 and March 31, 2014, respectively	13	13
Additional paid-in capital	779,346	754,061
Accumulated other comprehensive loss	-33	-55
Accumulated deficit	-618,042	-598,757
Total stockholders' equity	161,284	155,262
Total liabilities, redeemable non-controlling interest and stockholders' equity	$1,683,434	$1,580,938

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Statement Of Financial Position [Abstract]	'	'
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	'	'
Preferred stock, shares outstanding	'	'
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	127,083,332	124,788,853
Common stock, shares outstanding	127,052,406	124,766,544

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Loss (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Statement [Abstract]	'	'
Revenue	$145,750	$122,741
Cost of revenue	89,191	87,208
Gross profit	56,559	35,533
Operating expense:	'	'
Sales and marketing	41,624	28,531
Engineering and development	4,953	6,140
General and administrative	15,481	13,096
Total operating expense	62,058	47,767
Loss from operations	-5,499	-12,234
Other expense:	'	'
Interest income	83	12
Interest expense	-13,635	-21,704
Total other expense-net	-13,552	-21,692
Loss before income taxes and equity earnings of unconsolidated entities	-19,051	-33,926
Income tax expense (benefit)	3,439	-12,061
Loss before equity earnings of unconsolidated entities	-22,490	-21,865
Equity income of unconsolidated entities, net of tax	-21	-137
Net loss	-22,469	-21,728
Net loss attributable to non-controlling interest	-3,184	'
Net loss attributable to Endurance International Group Holdings, Inc.	-19,285	-21,728
Comprehensive loss:	'	'
Foreign currency translation adjustments	22	'
Total comprehensive loss	($19,263)	($21,728)
Net loss per share attributable to Endurance International Group Holdings, Inc.-basic and diluted	($0.15)	($0.22)
Weighted-average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.-basic and diluted	126,442,105	97,163,245

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net loss	($22,469)	($21,728)
Adjustments to reconcile net loss to net cash provided by operating activities:	'	'
Depreciation of property and equipment	7,046	3,925
Amortization of other intangible assets	24,079	26,070
Amortization of deferred financing costs	19	53
Amortization of net present value of deferred consideration	5	579
Stock-based compensation	3,544	553
Deferred tax expense (benefit)	977	-12,528
(Gain) loss on sale of property and equipment	6	-13
Gain of unconsolidated entities	-21	-137
Gain from change in deferred consideration	-12	'
Changes in operating assets and liabilities:	'	'
Accounts receivable	-689	-1,399
Prepaid expenses and other current assets	-8,131	-3,623
Accounts payable and accrued expenses	2,239	4,009
Deferred revenue	31,394	19,725
Net cash provided by operating activities	37,987	15,486
Cash flows from investing activities:	'	'
Business acquired in purchase transaction, net of cash acquired	-18,028	-2,546
Purchases of property and equipment	-6,203	-11,505
Proceeds from sale of property and equipment	80	60
Purchases of intangible assets	-100	'
Net (deposits) and withdrawals of principal balances in restricted cash accounts	-329	314
Net cash used in investing activities	-24,580	-13,677
Cash flows from financing activities:	'	'
Proceeds from borrowing of revolver	'	9,000
Repayment of term loan	-2,625	-2,000
Repayment of revolver	'	-13,000
Payment of financing costs	-12	'
Deferred consideration	-24,516	-1,145
Principal payments on capital lease obligations	-885	'
Issuance costs of common stock	-578	'
Net cash used in financing activities	-28,616	-7,145
Net effect of exchange rate on cash and cash equivalents	178	'
Net decrease in cash and cash equivalents	-15,031	-5,336
Cash and cash equivalents:	'	'
Beginning of period	66,815	23,245
End of period	51,784	17,909
Supplemental cash flow information:	'	'
Interest paid	14,095	21,971
Income taxes paid	247	253
Supplemental disclosure of non-cash investing and financing activities:	'	'
Assets acquired under capital lease	11,704	'
Directi [Member]	'	'
Supplemental disclosure of non-cash investing and financing activities:	'	'
Shares issued in connection with the acquisition of Directi	$25,476	'

Nature_of_Business

Nature of Business	3 Months Ended
Nature of Business	Mar. 31, 2014
Accounting Policies [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 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. The Company closed its initial public offering (“IPO”) of its common stock on October 25, 2013.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
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, and determined that the Company is comprised of only one segment for reporting purposes.
	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 March 31, 2014, and the related statements of operations, cash flows and the notes to consolidated financial statements for the three months ended March 31, 2013 and 2014 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 March 31, 2014, and results of operations and cash flows for the three months ended March 31, 2013 and 2014. 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, 2014.
	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 Expenses and Other Current Assets
	Prepaid expenses and other current assets include deferred expenses for domain name registry fees that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a subscriber. The registry fees are recognized on a straight-line basis over the term of the domain registration period. As of December 31, 2013 and March 31, 2014, the balance of deferred expenses for domain name registry fees was $22.8 million and $30.4 million, respectively.
	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 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” (“ASC 350”). Accordingly, certain costs to develop internal-use computer software are capitalized, provided these costs are expected to be recoverable. There were no such costs capitalized during the three months ended March 31, 2013 and there was $1.0 million of internal-use software development costs capitalized for the three months ended March 31, 2014.
	Goodwill
	Goodwill relates to amounts that arose in connection with the Company’s various business combinations 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 acquisition 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 value, 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, (“ASC 350”), the Company is required to review goodwill by reporting unit for impairment at least annually or more often if there are indicators of impairment present. The Company has determined its entire business represents one reporting unit. Historically, the Company has performed its annual impairment analysis during the fourth quarter of each year. The provisions of ASC 350 require that a two-step impairment test be performed for goodwill. In the first step, the Company compares the fair value of its reporting unit to which goodwill has been allocated to its carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that reporting unit, goodwill is considered not impaired and the Company is not required to perform further testing. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the impairment test in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then the Company would record an impairment loss equal to the difference. As of December 31, 2013 and March 31, 2014, the fair value of the Company’s reporting unit exceeded the carrying value of the reporting unit’s net assets and 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 $984.2 million and $1,074.3 million as of December 31, 2013 and March 31, 2014, 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 and developed technology. We also have long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangibles are recorded in connection with its various business combinations. 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 for the three months ended March 31, 2013 and the three months ended March 31, 2014.
	Revenue Recognition
	The Company generates revenue 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, whether the associated revenue is derived from a direct subscriber or through a reseller. Deferred revenue represents the liability to subscribers for advance billings for services not yet provided and the fair value of the assumed liability outstanding for subscriber relationships purchased in an acquisition.
	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 non-term based applications and services, such as 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 services arrangements that may include hosting plans, domain name registrations, and 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 and allocates revenue to each deliverable in a multiple-element service arrangement based on its respective relative selling price.
	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.
	Income Taxes
	Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes, (“ASC 740”). Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
	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 of being 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 months ended March 31, 2013 and 2014.
	The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three months ended March 31, 2013 and 2014, the Company did not recognize any interest or penalties related to unrecognized tax benefits.
	Stock-Based Compensation
	The Company follows the provisions of ASC 718, Compensation—Stock Compensation (“ASC 718”), which requires employee stock-based payments to be accounted for under the fair value method. Under this method, the Company is required to record compensation cost based on the estimated fair value for stock-based awards granted over the requisite service periods for the individual awards, which generally equals the vesting periods. The Company uses the straight-line amortization method for recognizing stock-based compensation expense.
	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, (ASC 260-10) which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive loss. The Company’s basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.
	The Company’s potentially dilutive shares of common stock would be 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 months ended March 31, 2013 and 2014, non-vested shares, stock options, restricted stock awards and restricted stock units amounting to 7,482,513 and 8,442,330, respectively, were excluded from the denominator in the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.


		Three Months ended
		March 31,
		2013			2014
		(unaudited)
		(in thousands, except per share
		amount and per share data)
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(21,728	)	$	(19,285	)

	Net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted	$	(0.22	)	$	(0.15	)

Weighted average number of shares of common stock used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
Basic and diluted		97,163,245			126,442,105

Recent Accounting Pronouncements
There have been no new recent accounting pronouncements or changes in accounting pronouncements during the three months ended March 31, 2014, that are of significance, or potential significance, to the Company.
Reclassifications
In 2013, the Company reclassified deferred consideration in the consolidated statements of cash flows from net cash used in investing activities to net cash provided by financing activities.

Acquisitions

Acquisitions	3 Months Ended
Acquisitions	Mar. 31, 2014
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 include subscriber relationships, trade names and developed technology. The methodologies used to determine the fair value assigned to subscriber relationships is 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. 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.
	On January 23, 2014, the Company acquired the web presence business of Directi (“Directi”) from Directi Web Technologies Holdings, Inc. (“Directi Holdings”). Directi provides web presence solutions to SMBs in various countries, including India, the United States, Turkey, China, Russia and Indonesia. The acquisition provides the Company with an established international presence focused on growing emerging markets as well as the ability to expand its geographic footprint by taking its existing portfolio of brands to international markets.
	The initial purchase price of $102.0 million consisted of the issuance of 2,123,039 shares of the Company’s common stock to Directi Holdings equivalent to $25.5 million, cash payments of $25.5 million including a $5.0 million advance payment paid in August 2013, and a promissory note of $51.0 million payable in April 2014. The principal amount of the promissory note was an estimate subject to increase if Directi met certain performance metrics for the period from July 1, 2013 through March 30, 2014. At March 31, 2014, the Company recorded an increase in its estimate of the amount payable on the promissory note by $4.3 million to $55.3 million, and recorded an additional $2.9 million for an estimated post-closing adjustment related to working capital and other assets acquired.
	The estimated purchase price of $109.2 million has been allocated on a preliminary basis primarily to goodwill of $92.8 million, long-lived intangible assets consisting of subscriber relationships, developed technology, trade-names and leasehold interests of $8.2 million, $6.7 million, $5.3 million and $0.3 million, respectively, property and equipment of $2.7 million, other assets of $4.7 million and working capital of $0.2 million, offset by deferred revenue of $3.0 million, other payables of $5.4 million and deferred tax liabilities of $3.3 million. The majority of the purchase price was allocated to goodwill, which is not deductible for tax purposes. The goodwill reflects the value of an established international business and infrastructure that enables the Company to increase its market penetration in emerging markets.

	For the three months ended March 31, 2014, $2.5 million of revenue from the Company’s 2014 acquisition was included in the Company’s consolidated statement of operations and comprehensive loss for the three months ended March 31, 2014.
	The Company has omitted earnings information related to its acquisitions as it does not separately track earnings from each of its acquisitions 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.
	In addition, in connection with the acquisition of Directi, the Company may be obligated to make additional aggregate payments of up to a maximum of approximately $62.0 million, subject to specified terms, conditions and operational contingencies. The Company has paid $3.8 million of this amount in connection with the purchase of certain domain names by a subsidiary of the Company from a company associated with the founders of Directi Holdings pursuant to an agreement entered into as of April 30, 2014.

Property_and_Equipment_and_Cap

Property and Equipment and Capital Lease Obligations	3 Months Ended
Property and Equipment and Capital Lease Obligations	Mar. 31, 2014
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 (in thousands):


		December 31, 2013			March 31, 2014
	Software	$	4,503		$	17,766
	Computers and office equipment		59,201			65,741
	Furniture and fixtures		3,715			4,206
	Leasehold improvements		6,033			6,536
	Construction in process		1,392			1,021

	Property and equipment—at cost		74,844			95,270
	Less accumulated depreciation		(25,129	)		(32,082	)

	Property and equipment—net	$	49,715		$	63,188

	During the three months ended March 31, 2014, the Company entered into an agreement to lease software licenses for a term of thirty-six months.
	As of December 31, 2013 and March 31, 2014, the Company’s software shown above included the assets under capital lease as follows (dollars in thousands):


		December 31, 2013			March 31, 2014
	Software	$	—		$	11,704
	Less accumulated depreciation		—			(975	)

	Assets under capital lease—net	$	—		$	10,729

	At March 31, 2014, the expected future minimum lease payments under the capital lease agreements were approximately as follows (dollars in thousands):


		Amount
	Remainder of 2014	$	3,084
	2015		4,112
	2016		4,420

	Total minimum lease payments		11,616
	Less amount representing interest		(797	)

	Present value of minimum lease payments (capital lease obligation)		10,819
	Current portion		3,654

	Long-term portion	$	7,165

	Depreciation expense related to property and equipment for the three months ended March 31, 2013 and 2014 was $3.9 million and $7.0 million, respectively.

Fair_Value_Measurements

Fair Value Measurements

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

The following valuation hierarchy is used for disclosure of the inputs to valuation 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, 2013 and March 31, 2014, the Company’s only financial assets or liabilities required to be measured on a recurring basis is the accrued earn-out consideration payable in connection with the 2012 acquisition of Mojo. The Company has classified its liabilities for contingent earn-out consideration related to the acquisition of Mojo within Level 3 of the fair value hierarchy because the fair value is determined using significant unobservable inputs, which included probability weighted cash flows. The Company paid $0.2 million during the three months ended March 31, 2014 related to the earn-out provisions. There was no change in fair value of the earn-out consideration from December 31, 2013 to March 31, 2014. 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

in Active Markets

Other

Unobservable

for Identical Items

Observable

Inputs

(Level 1)

Inputs

(Level 3)

(Level 2)

(in thousands)

Balance at December 31, 2013:

Financial liabilities:

Contingent earn-out consideration

1,655

—

1,655

Total financial liabilities

1,655

—

1,655

Balance at March 31, 2014:

Financial liabilities:

Contingent earn-out consideration

1,407

—

1,407

Total financial liabilities

1,407

—

1,407

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	3 Months Ended
Goodwill and Other Intangible Assets	Mar. 31, 2014
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, 2013 to March 31, 2014 (in thousands):


	Goodwill balance at December 31, 2013	$	984,207
	Goodwill related to 2013 acquisitions		(2,870	)
	Goodwill related to 2014 acquisitions		92,790
	Foreign translation impact		175

	Goodwill balance at March 31, 2014	$	1,074,302


	During the three months ended March 31, 2014, the Company completed the purchase accounting related to a 2013 acquisition and allocated an additional $2.9 million to long-lived intangible assets which had been included in goodwill on a preliminary basis. The Company has not recorded any impairment charges related to goodwill during the three months ended March 31, 2013 and 2014.
	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 as of March 31, 2014.
	At March 31, 2014, other intangible assets consisted of the following (dollars in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Other Intangible assets:
	Developed technology	$	190,730		$	41,301	$	149,429		9 years
	Subscriber relationships		357,106			154,700		202,406		13 years
	Trade-names		74,494			23,070		51,424		13 years
	Intellectual property		2,820			583		2,237		8 years
	Leasehold interests		314			39		275		1 year

	Total March 31, 2014	$	625,464		$	219,693	$	405,771

	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 $26.1 million and $24.1 million for the three months ended March 31, 2013 and 2014, respectively.

Investments

Investments	3 Months Ended
Investments	Mar. 31, 2014
Investments Debt And Equity Securities [Abstract]	'
Investments	'
	7. Investments
	As of December 31, 2013 and March 31, 2014, the Company’s carrying value of investments in privately-held companies, was $6.5 million and $6.6 million, respectively.
	In 2012 the Company assumed a 50% interest in another privately-held company, with a fair value of $10.0 million. On October 31, 2013, the Company sold 10% of its ownership interest in this privately-held Company, reducing its interest to 40%.
	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 of unconsolidated entities, net of tax. The Company recognized net income of $0.1 million and $21,000 for the three months ended March 31, 2013 and 2014, 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 March 31, 2014, the Company was not obligated to fund any follow-on investments in these investee companies.
	As of December 31, 2013 and March 31, 2014, 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	3 Months Ended
Notes Payable	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Notes Payable	'
	8. Notes Payable
	At December 31, 2013, and March 31, 2014 notes payable consisted of a first lien term loan facility with a principal amount outstanding of $1,047.4 million and $1,044.8 million, respectively, which bore interest at a LIBOR-based rate of 5.00%.
	January 2013—November 24, 2013
	On November 9, 2012, the Company entered into the November Financing Amendment (“November 2012 Financing Amendment”) for a new first lien term loan in the original principal amount of $800.0 million (“November 2012 First Lien”), a revolver in aggregate principal amount not to exceed $85.0 million (“Revolver”) and a new Second Lien credit agreement (“November 2012 Second Lien”), for an original principal amount of $315.0 million. In August 2013, the Company amended its November 2012 Term Loan for an additional $90.0 million of incremental first lien term loan before refinancing its debt in November 2013, as described below.
	The loans automatically bore interest at the bank’s reference rate unless the Company gave notice to opt for LIBOR-based interest rate loans. For the November 2012 First Lien, the interest rate for a LIBOR based loan was 5.00% plus the greater of the LIBOR rate or 1.25%. The interest rate for a reference rate loan was 4.00% per annum plus the greater of the prime rate, the federal funds effective rate plus 0.50%, an Adjusted LIBOR rate or 2.25%. For the November 2012 Second Lien, the interest rate for a LIBOR-based loan was 9.00% plus the greater of the LIBOR rate or 1.25%. The interest rate for an Alternate Base Rate (“ABR”) Revolver loan was 5.25% per annum plus the greater of the prime rate, the federal funds effective rate plus 0.50%, an adjusted LIBOR rate or 2.25%. The interest rate for a LIBOR based Revolver loan was 6.25% per annum plus the greater of the LIBOR rate or 1.50%. The November 2012 First Lien also had a non-refundable fee, equal to 0.50% of the daily unused principal amount of the Revolver payable in arrears on the last day of each fiscal quarter.
	During the three months ended March 31, 2013, the Company made a mandatory repayment on the November 2012 First Lien of $2.0 million. For the three months ended March 31, 2013, amortization of deferred financing costs of $0.1 million was included in interest expense in the consolidated statements of operations and comprehensive loss.
	Debt Refinancing—November 25, 2013
	In November 2013, following its initial public offering, the Company repaid in full its November 2012 Second Lien 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, thereby reducing its overall indebtedness by $148.8 million. The Company also increased the Revolver by $40.0 million to $125.0 million. As of March 31, 2014 the Company had not drawn down on its revolver facility. The mandatory repayment of principal on the November 2013 First Lien was increased to approximately $2.6 million at the end of each quarter. There was no change to the maturity dates of the first lien facility and Revolver, which mature on 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 $21.0 million and $13.4 million in interest expense and service fees for the three months ended March 31, 2013 and 2014, respectively. In addition for the three months ended March 31, 2013 and 2014, interest expense in the consolidated statements of operations and comprehensive loss included amortization of deferred financing costs of $53,000 and $19,000, respectively, and $0.6 million and $6,000, respectively, related to the accretion of present value for the deferred consideration and deferred bonus payments related to the HostGator acquisition. Interest expense in the consolidated statements of operations and comprehensive loss for the three months ended March 31, 2014 also included $0.1 million related to capital lease obligations and $0.1 million related to a promissory note for a deferred acquisition liability.
	As of December 31, 2013 and March 31, 2014, the interest rate on the LIBOR-based First Lien term loan was 5.00%.

	The following table provides a summary of interest rates and interest expense for the three months ended March 31, 2013 and 2014 (dollars in thousands):


		Three Months Ended
		March 31, 2013			March 31, 2014
	Interest rate—LIBOR		6.25%-10.25	%		5.00%-7.75	%
	Interest rate—reference		7.75%-10.25	%		5.00%-8.50	%
	Non-refundable fee—unused facility		0.5	%		0.5	%
	Interest expense and service fees	$	21,034		$	13,351
	Amortization of deferred financing fees	$	53		$	19
	Amortization of net present value of deferred consideration	$	617		$	6
	Interest expense for capital lease obligations	$	—		$	143
	Interest expense for deferred consideration promissory note	$	—		$	70
	Other interest expense	$	—		$	46
	The November 2013 Financing Amendment contains certain restrictive financial covenants, including a net leverage ratio, restrictions on the payment of dividends, as well as reporting requirements. Additionally, the November 2013 Financing Amendment 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 December 31, 2013 and March 31, 2014.
	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 the exception of certain restricted cash balances and bank deposits permitted under the terms of the Financing Agreement.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	9. Stockholders’ Equity
	2013
	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, 2013 and March 31, 2014.
	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 tables present the changes in total stockholders’ equity (in thousands):


		Total
		Stockholders’
		Equity
	Balance, December 31, 2013	$	155,262
	Issuance of common stock for Directi acquisition		25,476
	Stock-based compensation		3,544
	Non-controlling interest accretion		(551	)
	Foreign currency translation adjustment		22
	Net loss		(22,469	)

	Balance, March 31, 2014	$	161,284

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
Stock-Based Compensation	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Compensation	'
	10. Stock-Based Compensation
	2012 Restricted Stock
	The following tables present a summary of the 2012 restricted stock awards activity for the three months ended March 31, 2014 for restricted stock awards that were granted prior to the Company’s initial public offering (dollars in thousands):


			2012 Plan Stock Awards
	Non-vested at December 31, 2013			1,456,666
	Forfeitures			(8,534	)
	Vested			(162,824	)

	Non-vested at March 31, 2014			1,285,308

	The following table provides a summary of the activity of the restricted stock units that were granted in connection with the initial public offering and the non-vested balance as of March 31, 2014 (dollars in thousands except grant date fair value price):


			Restricted Stock Units				Weighted
							Average
							Grant Date
							Fair Value
	Non-vested at December 31, 2013			288,014			$	12
	Vested and unissued			(33,218	)		$	12

	Non-vested at March 31, 2014			254,796			$	12

	2013 Stock Incentive Plan
	The 2013 Stock Incentive Plan (the “2013 Plan”) of the Company provides for the grant of options, stock appreciation rights, restricted stock, restricted stock units and other stock-based awards to employees, officers, directors, consultants and advisors of the Company.
	For stock options issued under the 2013 Plan, the fair value of each option is estimated on the date of grant, and an estimated forfeiture rate is used when calculating stock-based compensation expense for the period. Stock options typically vest over four years and the Company recognizes compensation expense on a straight-line basis over the requisite service period of the award. The Company uses the Black-Scholes option pricing model to estimate the fair value of stock option awards and determine the related compensation expense. The assumptions used to compute stock-based compensation expense for awards granted under the 2013 Stock Incentive Plan during the three months ended March 31, 2014 are as follows:


			2013
	Risk-free interest rate			2.1	%
	Expected volatility			60	%
	Expected life (in years)			6.25
	Expected dividend yield			—
	The risk-free interest rate assumption was based on the U.S. Treasury zero-coupon bonds with maturities similar to those of the expected term of the award being valued. The Company bases its estimate of expected volatility using volatility data from comparable public companies in similar industries and markets because there is currently limited public history for the Company’s common stock, and therefore, a lack of market-based company-specific historical and implied volatility information. The weighted-average expected life for employee options reflects the application of the simplified method, which represents the average of the contractual term of the options and the weighted-average vesting period for all option tranches. The simplified method has been used since the Company does not have sufficient historical exercise data to provide reasonable basis upon which to estimate expected term due to a limited history of stock option grants. The assumed dividend yield was based on the Company’s expectation of not paying dividends in the foreseeable future. In addition, the Company has estimated expected forfeitures of stock options based on management’s judgment due to the limited historical experience of forfeitures. The forfeiture rate was not material to the calculation of stock-based compensation expense. Unless otherwise determined by the Company’s board of directors, stock-based awards granted under the 2013 Plan, generally vest annually over a four-year period.

	The following table provides a summary of the Company’s stock options as of March 31, 2014 and the stock option activity for all stock options granted under the 2013 Plan during the three months ended March 31, 2014 (dollars in thousands except exercise price):


			Stock				Weighted-		Weighted-		Aggregate
			Options				Average		Average		Intrinsic
							Exercise		Remaining		Value(3)
							Price		Contractual Term
									(In Years)
	Outstanding at December 31, 2013			5,619,671			$	12
	Granted			2,902			$	12.12
	Canceled			(208,100	)		$	12

	Outstanding at March 31, 2014			5,414,473			$	12		9.6	$	5,468

	Exercisable at March 31, 2014(1)			294,144			$	12		9.6	$	297
	Expected to vest at March 31, 2014			5,027,874			$	12		9.6	$	5,078
	Exercisable and expected to vest at March 31, 2014(2)			5,322,018			$	12		9.6	$	5,375

	-1	This represents the number of unvested options outstanding as of March 31, 2014, which has been reduced using an estimated forfeiture rate and are expected to vest in the future.
	-2	This represents the number of vested options as of March 31, 2014 plus the number of unvested options outstanding as of March 31, 2014, which has been reduced using an estimated forfeiture rate and are expected to vest in the future.
	-3	The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on March 31, 2014 of $13.01 per share, or the date of exercise as appropriate, and the exercise price of the underlying options.
	The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the three months ended March 31, 2014 (dollars in thousands except weighted-average grant date fair value price):


			Restricted Stock				Weighted
			Awards				Average
							Grant Date
			Fair Value
Non-vested at December 31, 2013				714,928			$	12
Granted			60,723			$	12.12
Canceled			(46,444	)		$	12

Non-vested at March 31, 2014			729,207			$	12.01

The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the three months ended March 31, 2014 (dollars in thousands except weighted-average grant date fair value price):


		Restricted Stock Units				Weighted
						Average
						Grant Date
						Fair Value
Non-vested at December 31, 2013			461,556			$	12
Vested and unissued			(30,098	)		$	12

Non-vested at March 31, 2014			431,458			$	12


All Plans
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 Company’s IPO in October 2013 and all awards granted under the 2013 Plan subsequent to the IPO (dollars in thousands):


		Three Months Ended
		March 31,
		2013				2014
Cost of revenue		$	9			$	132
Sales and marketing			40				368
Engineering and development			26				193
General and administrative			478				2,851

Total operating expense		$	553			$	3,544

The following table provides a summary of the unrecognized compensation expense for the Company’s 2012 restricted stock awards and units and the 2013 Plan awards by plan and type of award as of March 31, 2014 (dollars in thousands):


		Unrecognized Compensation				Weighted
		Expense at March 31, 2014				Average
						Period To Be
						Recognized
2012 Plan Pre IPO Non-vested Awards		$	1,129				2.0 years
2012 Plan Restricted Stock Unit Awards		$	3,016				1.9 years
2013 Plan Stock Option Awards		$	32,707				3.5 years
2013 Plan Restricted Stock Awards		$	7,590				3.5 years
2013 Plan Restricted Stock Unit Awards		$	5,151				3.6 years

Redeemable_Noncontrolling_Inte

Redeemable Non-controlling Interest	3 Months Ended
Redeemable Non-controlling Interest	Mar. 31, 2014
Noncontrolling Interest [Abstract]	'
Redeemable Non-controlling Interest	'
	11. Redeemable Non-controlling Interest
	In connection with a 2013 equity investment in a privately held company based in the United Kingdom, 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 is subject to a put option that is outside the control of the Company, it is deemed redeemable non-controlling interest and not recorded in permanent equity, and is being presented as mezzanine redeemable non-controlling interest on the consolidated balance sheet, and is subject to the SEC guidance 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 expected to be paid upon exercise of the put option is being accreted over the period commencing December 11, 2013, and up to the end of the first put option period, which commences on the eighteen month anniversary of the acquisition date. Adjustments to the carrying amount of the redeemable non-controlling interest are charged to additional paid-in capital. The estimated value of the redeemable non-controlling interest as of March 31, 2014 was $21.3 million. Non-controlling interest arising from the application of the consolidation rules is classified within the 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.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2014
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 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, 2013 and March 31, 2014, 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 twelve 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 March 31, 2014;

		•	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 March 31, 2014, 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 $55.8 million as of December 31, 2013. The provision for income taxes results from a combination of the activities of our domestic and foreign subsidiaries. For the three months ended March 31, 2013 and 2014, the Company has recognized a tax benefit of $12.1 million and tax expense of $3.4 million, respectively in the consolidated statements of operations and comprehensive loss. The income tax expense for the three months ended March 31, 2014 is primarily attributable to a provision for foreign taxes of $1.8 million and U.S. alternative minimum taxes of $0.6 million. The remaining balance of $1.0 million is primarily attributable to increase in deferred tax liabilities due to the differences in the accounting treatment of goodwill under U.S. GAAP and the tax accounting treatment for goodwill.
	The provision (benefit) 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, 2013, the Company had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $214.2 million and future state taxable income by approximately $152.8 million. These NOL carry-forwards expire on various dates through 2033. As of December 31, 2013, the Company had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $33.7 million. India has loss carry-forwards totaling $2.1 million that expire in 2021. The Company also has loss carry-forwards in the United Kingdom of $31.6 million and these losses do not expire.
	Utilization of the NOL carry-forwards can be subject to an annual limitation due to the ownership percentage change limitations (“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 in 2011. Through December 31, 2013 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 is undertaking an analysis of changes in its ownership from 2011, through its initial public offering, to December 31, 2013. The preliminary conclusion is that there was not a Section 382 ownership change during this period and therefore the Company does not expect any NOLs generated through December 31, 2013, to be subject to any new Section 382 annual limitations on NOL carry-forwards. Therefore all unused NOL carry-forwards at December 31, 2013 are expected to be available for future use to offset taxable income.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	13. Commitments and Contingencies
	On February 28, 2014, the Company entered into a Master Service Agreement (the “Agreement”) with Ace Data Centers, Inc. Under the terms of the Agreement which is retroactively effective as of January 1, 2014 (the “Effective Date”), the Company will license space at a data center facility in Provo, Utah. The Agreement provides for a term of ten years from the Effective Date and has a total estimated financial obligation of $102.0 million over the ten year term, exclusive of certain fees and charges, including without limitation, non-recurring charges, late fees or other penalties, fees for additional bandwidth purchased by the Company and additional services not contemplated in the Agreement.
	From time to time, the Company is involved in legal proceedings or subject to claims arising in the ordinary course of its business. 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	3 Months Ended
Related Party Transactions	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	14. 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 months ended March 31, 2013 and 2014.
	The Company has certain contracts with entities for outsourced services that are related parties. The ownership of these entities is held directly or indirectly by family members of the Company’s chief executive officer, who is also a director of the Company. For the three months ended March 31, 2013 and 2014, $1.4 million and $1.1 million, respectively, was recorded as expense in cost of revenue $0.3 million and $0.2 million, respectively, was recorded in engineering and development expense, $0.0 million and $0.1 million, respectively, was recorded in sales and marketing expense, and $0.4 million and $0.1 million, respectively, was recorded in general and administrative expense, relating to services provided to the Company under these agreements.
	The Company also has an agreement with an entity that provides a third-party security application that is sold by the Company. The entity is collectively majority owned by the Company’s chief executive officer, and two investors in the Company, one of whom is a director of the Company, and who are beneficial owners, directly and indirectly, of equity in the Company. For the three months ended March 31, 2013 and 2014, the Company recorded $0.7 million of expense for each period in cost of revenue related to this agreement.

Subsequent_Events

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	15. Subsequent Events
	With respect to the unaudited consolidated financial statements as of and for the three months ended March 31, 2014, the Company performed an evaluation of subsequent events through the date of this filing.
	On April 30, 2014, the Company paid the $55.3 million balance on the promissory note in connection with the acquisition of Directi bringing the total paid for the Directi transaction to $106.3 million. The Company estimates the remaining portion of payments for Directi to be an additional $2.9 million which will bring the total purchase price for Directi to $109.2 million.
	In addition, in connection with the acquisition of Directi, the Company may be obligated to make additional aggregate payments of up to a maximum of approximately $62.0 million, subject to specified terms, conditions and operational contingencies. The Company has paid $3.8 million of this amount in connection with the purchase of certain domain names by a subsidiary of the Company from a company associated with the founders of Directi Holdings pursuant to an agreement entered into as of April 30, 2014.
	On May 2, 2014, the Company made a strategic investment of $15.0 million in Automattic, an entity that 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 one of its most important partners.
	The Company funded these payments utilizing cash on hand, cash flow from operations and use of its revolving credit facility.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2014
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, and determined that the Company is comprised of only one segment for reporting purposes.
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 March 31, 2014, and the related statements of operations, cash flows and the notes to consolidated financial statements for the three months ended March 31, 2013 and 2014 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 March 31, 2014, and results of operations and cash flows for the three months ended March 31, 2013 and 2014. 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, 2014.
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 Expenses and Other Current Assets	'
	Prepaid Expenses and Other Current Assets
	Prepaid expenses and other current assets include deferred expenses for domain name registry fees that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a subscriber. The registry fees are recognized on a straight-line basis over the term of the domain registration period. As of December 31, 2013 and March 31, 2014, the balance of deferred expenses for domain name registry fees was $22.8 million and $30.4 million, respectively.
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 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” (“ASC 350”). Accordingly, certain costs to develop internal-use computer software are capitalized, provided these costs are expected to be recoverable. There were no such costs capitalized during the three months ended March 31, 2013 and there was $1.0 million of internal-use software development costs capitalized for the three months ended March 31, 2014.
Goodwill	'
	Goodwill
	Goodwill relates to amounts that arose in connection with the Company’s various business combinations 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 acquisition 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 value, 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, (“ASC 350”), the Company is required to review goodwill by reporting unit for impairment at least annually or more often if there are indicators of impairment present. The Company has determined its entire business represents one reporting unit. Historically, the Company has performed its annual impairment analysis during the fourth quarter of each year. The provisions of ASC 350 require that a two-step impairment test be performed for goodwill. In the first step, the Company compares the fair value of its reporting unit to which goodwill has been allocated to its carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that reporting unit, goodwill is considered not impaired and the Company is not required to perform further testing. If the carrying value of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the Company must perform the second step of the impairment test in order to determine the implied fair value of the reporting unit’s goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then the Company would record an impairment loss equal to the difference. As of December 31, 2013 and March 31, 2014, the fair value of the Company’s reporting unit exceeded the carrying value of the reporting unit’s net assets and 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 $984.2 million and $1,074.3 million as of December 31, 2013 and March 31, 2014, 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 and developed technology. We also have long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangibles are recorded in connection with its various business combinations. 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 for the three months ended March 31, 2013 and the three months ended March 31, 2014.
Revenue Recognition	'
	Revenue Recognition
	The Company generates revenue 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, whether the associated revenue is derived from a direct subscriber or through a reseller. Deferred revenue represents the liability to subscribers for advance billings for services not yet provided and the fair value of the assumed liability outstanding for subscriber relationships purchased in an acquisition.
	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 non-term based applications and services, such as 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 services arrangements that may include hosting plans, domain name registrations, and 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 and allocates revenue to each deliverable in a multiple-element service arrangement based on its respective relative selling price.
	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.
Income Taxes	'
	Income Taxes
	Income taxes are accounted for in accordance with ASC 740, Accounting for Income Taxes, (“ASC 740”). Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
	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 of being 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 months ended March 31, 2013 and 2014.
	The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the three months ended March 31, 2013 and 2014, the Company did not recognize any interest or penalties related to unrecognized tax benefits.
Stock-Based Compensation	'
	Stock-Based Compensation
	The Company follows the provisions of ASC 718, Compensation—Stock Compensation (“ASC 718”), which requires employee stock-based payments to be accounted for under the fair value method. Under this method, the Company is required to record compensation cost based on the estimated fair value for stock-based awards granted over the requisite service periods for the individual awards, which generally equals the vesting periods. The Company uses the straight-line amortization method for recognizing stock-based compensation expense.
	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, (ASC 260-10) which requires the presentation of both basic and diluted earnings per share in the consolidated statements of operations and comprehensive loss. The Company’s basic net loss per share is computed by dividing net loss by the weighted average number of shares of common stock outstanding for the period and, if there are dilutive securities, diluted income per share is computed by including common stock equivalents which includes shares issuable upon the exercise of stock options, net of shares assumed to have been purchased with the proceeds, using the treasury stock method.
	The Company’s potentially dilutive shares of common stock would be 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 months ended March 31, 2013 and 2014, non-vested shares, stock options, restricted stock awards and restricted stock units amounting to 7,482,513 and 8,442,330, respectively, were excluded from the denominator in the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.


		Three Months ended
		March 31,
		2013			2014
		(unaudited)
		(in thousands, except per share
		amount and per share data)
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(21,728	)	$	(19,285	)

	Net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted	$	(0.22	)	$	(0.15	)

	Weighted average number of shares of common stock used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted		97,163,245			126,442,105

Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	There have been no new recent accounting pronouncements or changes in accounting pronouncements during the three months ended March 31, 2014, that are of significance, or potential significance to the Company.
Reclassifications	'
	Reclassifications
	In 2013, the Company reclassified deferred consideration in the consolidated statements of cash flows from net cash used in investing activities to net cash provided by financing activities.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	3 Months Ended
Summary of Significant Accounting Policies (Tables)	Mar. 31, 2014
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 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 months ended March 31, 2013 and 2014, non-vested shares, stock options, restricted stock awards and restricted stock units amounting to 7,482,513 and 8,442,330, respectively, were excluded from the denominator in the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.


		Three Months ended
		March 31,
		2013			2014
		(unaudited)
		(in thousands, except per share
		amount and per share data)
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(21,728	)	$	(19,285	)

	Net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted	$	(0.22	)	$	(0.15	)

	Weighted average number of shares of common stock used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted		97,163,245			126,442,105

Property_and_Equipment_and_Cap1

Property and Equipment and Capital Lease Obligations (Tables)	3 Months Ended
	Mar. 31, 2014
Property Plant And Equipment [Abstract]	'
Components of Property and Equipment	'
	Components of property and equipment consisted of the following (in thousands):


		December 31, 2013			March 31, 2014
	Software	$	4,503		$	17,766
	Computers and office equipment		59,201			65,741
	Furniture and fixtures		3,715			4,206
	Leasehold improvements		6,033			6,536
	Construction in process		1,392			1,021

	Property and equipment—at cost		74,844			95,270
	Less accumulated depreciation		(25,129	)		(32,082	)

	Property and equipment—net	$	49,715		$	63,188

Summary of Assets under Capital Lease	'
	As of December 31, 2013 and March 31, 2014, the Company’s software shown above included the assets under capital lease as follows (dollars in thousands):


		December 31, 2013			March 31, 2014
	Software	$	—		$	11,704
	Less accumulated depreciation		—			(975	)

	Assets under capital lease —net	$	—		$	10,729

Summary of Future Minimum Lease Payments under Capital Lease Agreements	'
	At March 31, 2014, the expected future minimum lease payments under the capital lease agreements were approximately as follows (dollars in thousands):


		Amount
	Remainder of 2014	$	3,084
	2015		4,112
	2016		4,420

	Total minimum lease payments		11,616
	Less amount representing interest		(797	)

	Present value of minimum lease payments (capital lease obligation)		10,819
	Current portion		3,654

	Long-term portion	$	7,165

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
Fair Value Measurements (Tables)	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
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 Active Markets		Other		Unobservable
				for Identical Items		Observable		Inputs
				(Level 1)		Inputs		(Level 3)
						(Level 2)
		(in thousands)
	Balance at December 31, 2013:
	Financial liabilities:
	Contingent earn-out consideration	$	1,655		—		—	$	1,655

	Total financial liabilities	$	1,655		—		—	$	1,655

	Balance at March 31, 2014:
	Financial liabilities:
	Contingent earn-out consideration	$	1,407		—		—	$	1,407

	Total financial liabilities	$	1,407		—		—	$	1,407

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
Goodwill and Other Intangible Assets (Tables)	Mar. 31, 2014
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, 2013 to March 31, 2014 (in thousands):


	Goodwill balance at December 31, 2013	$	984,207
	Goodwill related to 2013 acquisitions		(2,870	)
	Goodwill related to 2014 acquisitions		92,790
	Foreign translation impact		175

	Goodwill balance at March 31, 2014	$	1,074,302


Summary of Other Intangible Assets	'
	At March 31, 2014, other intangible assets consisted of the following (dollars in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Other Intangible assets:
	Developed technology	$	190,730		$	41,301	$	149,429		9 years
	Subscriber relationships		357,106			154,700		202,406		13 years
	Trade-names		74,494			23,070		51,424		13 years
	Intellectual property		2,820			583		2,237		8 years
	Leasehold interests		314			39		275		1 year

	Total March 31, 2014	$	625,464		$	219,693	$	405,771

Notes_Payable_Tables

Notes Payable (Tables)	3 Months Ended
Notes Payable (Tables)	Mar. 31, 2014
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 months ended March 31, 2013 and 2014 (dollars in thousands):


		Three Months Ended
		March 31, 2013			March 31, 2014
	Interest rate—LIBOR		6.25%-10.25	%		5.00%-7.75	%
	Interest rate—reference		7.75%-10.25	%		5.00%-8.50	%
	Non-refundable fee—unused facility		0.5	%		0.5	%
	Interest expense and service fees	$	21,034		$	13,351
	Amortization of deferred financing fees	$	53		$	19
	Amortization of net present value of deferred consideration	$	617		$	6
	Interest expense for capital lease obligations	$	—		$	143
	Interest expense for deferred consideration promissory note	$	—		$	70
	Other interest expense	$	—		$	46

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
Stockholders' Equity (Tables)	Mar. 31, 2014
Equity [Abstract]	'
Summary of Changes in Stockholders' Equity	'
	The following tables present the changes in total stockholders’ equity (in thousands):


		Total
		Stockholders’
		Equity
	Balance, December 31, 2013	$	155,262
	Issuance of common stock for Directi acquisition		25,476
	Stock-based compensation		3,544
	Non-controlling interest accretion		(551	)
	Foreign currency translation adjustment		22
	Net loss		(22,469	)

	Balance, March 31, 2014	$	161,284

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
Stock-Based Compensation (Tables)	Mar. 31, 2014
Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's Initial Public Offering	'
	The following tables present a summary of the 2012 restricted stock awards activity for the three months ended March 31, 2014 for restricted stock awards that were granted prior to the Company’s initial public offering (dollars in thousands):


			2012 Plan Stock Awards
	Non-vested at December 31, 2013			1,456,666
	Forfeitures			(8,534	)
	Vested			(162,824	)

	Non-vested at March 31, 2014			1,285,308

Summary of Restricted Stock Units that were Granted in Connection with Initial Public Offering and the Non-Vested Balance	'
	The following table provides a summary of the activity of the restricted stock units that were granted in connection with the initial public offering and the non-vested balance as of March 31, 2014 (dollars in thousands except grant date fair value price):


			Restricted Stock Units			Weighted
						Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			288,014		$	12
	Vested and unissued			(33,218	)	$	12

	Non-vested at March 31, 2014			254,796		$	12
Stock Incentive Plan	'
	The assumptions used to compute stock-based compensation expense for awards granted under the 2013 Stock Incentive Plan during the three months ended March 31, 2014 are as follows:


			2013
	Risk-free interest rate			2.1	%
	Expected volatility			60	%
	Expected life (in years)			6.25
	Expected dividend yield			—
Summary of Stock Options	'
	The following table provides a summary of the Company’s stock options as of March 31, 2014 and the stock option activity for all stock options granted under the 2013 Plan during the three months ended March 31, 2014 (dollars in thousands except exercise price):


			Stock			Weighted-		Weighted-		Aggregate
			Options			Average		Average		Intrinsic
						Exercise		Remaining		Value(3)
						Price		Contractual Term
								(In Years)
	Outstanding at December 31, 2013			5,619,671		$	12
	Granted			2,902		$	12.12
	Canceled			(208,100	)	$	12

	Outstanding at March 31, 2014			5,414,473		$	12		9.6	$	5,468

	Exercisable at March 31, 2014(1)			294,144		$	12		9.6	$	297
	Expected to vest at March 31, 2014			5,027,874		$	12		9.6	$	5,078
	Exercisable and expected to vest at March 31, 2014(2)			5,322,018		$	12		9.6	$	5,375

	-1	This represents the number of unvested options outstanding as of March 31, 2014, which has been reduced using an estimated forfeiture rate and are expected to vest in the future.
	-2	This represents the number of vested options as of March 31, 2014 plus the number of unvested options outstanding as of March 31, 2014, which has been reduced using an estimated forfeiture rate and are expected to vest in the future.
	-3	The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on March 31, 2014 of $13.01 per share, or the date of exercise as appropriate, and the exercise price of the underlying options.
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 Company’s IPO in October 2013 and all awards granted under the 2013 Plan subsequent to the IPO (dollars in thousands):


			Three Months Ended
			March 31,
			2013			2014
	Cost of revenue		$	9		$	132
	Sales and marketing			40			368
	Engineering and development			26			193
	General and administrative			478			2,851

	Total operating expense		$	553		$	3,544

Summary of Unrecognized Compensation Expense	'
	The following table provides a summary of the unrecognized compensation expense for the Company’s 2012 restricted stock awards and units and the 2013 Plan awards by plan and type of award as of March 31, 2014 (dollars in thousands):


			Unrecognized Compensation			Weighted
			Expense at March 31, 2014			Average
						Period To Be
						Recognized
	2012 Plan Pre IPO Non-vested Awards		$	1,129			2.0 years
	2012 Plan Restricted Stock Unit Awards		$	3,016			1.9 years
	2013 Plan Stock Option Awards		$	32,707			3.5 years
	2013 Plan Restricted Stock Awards		$	7,590			3.5 years
	2013 Plan Restricted Stock Unit Awards		$	5,151			3.6 years
Restricted Stock [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 three months ended March 31, 2014 (dollars in thousands except weighted-average grant date fair value price):


			Restricted Stock			Weighted
			Awards			Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			714,928		$	12
	Granted			60,723		$	12.12
	Canceled			(46,444	)	$	12

	Non-vested at March 31, 2014			729,207		$	12.01

Restricted Stock Units (RSUs) [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 three months ended March 31, 2014 (dollars in thousands except weighted-average grant date fair value price):


			Restricted Stock Units			Weighted
						Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			461,556		$	12
	Vested and unissued			(30,098	)	$	12

	Non-vested at March 31, 2014			431,458		$	12

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
	Segment	Mar. 31, 2013	Dec. 31, 2013
Accounting Policies [Line Items]	'	'	'
Number of reportable segments	1	'	'
Software development cost capitalized	$1,000,000	$0	'
Impairment	0	0	0
Goodwill	1,074,302,000	'	984,207,000
Impairment charges	0	'	0
Impairment loss charged to expense	0	0	'
Contract service period	'36 months	'	'
Unrecognized tax benefits	0	0	'
Interest expense and penalties	0	0	'
Non-vested shares excluded	8,442,330	7,482,513	'
Domain Names [Member]	'	'	'
Accounting Policies [Line Items]	'	'	'
Deferred expenses for domain name registry fee	$30,400,000	'	$22,800,000

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail)	3 Months Ended
	Mar. 31, 2014
Software [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, plant and equipment useful life	'2 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_Account5

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 $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Accounting Policies [Abstract]	'	'
Net loss attributable to Endurance International Group Holdings, Inc.	($19,285)	($21,728)
Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted	($0.15)	($0.22)
Weighted average number of shares of common stock used in computing net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted	126,442,105	97,163,245

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)

3 Months Ended

0 Months Ended

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Aug. 01, 2013

Mar. 31, 2014

Apr. 30, 2014

Directi [Member]

Maximum [Member]

Minimum [Member]

Subsequent Event [Member]

Subscriber Relationships [Member]

Developed Technology [Member]

Trade Names [Member]

Leasehold Interests [Member]

Directi [Member]

Domain Names [Member]

Business Acquisition [Line Items]

Initial purchase price

$102,000,000

Issuance of common stock

2,123,039

Common stock holding

25,500,000

Cash paid for purchasing common stock

25,500,000

Advance paid for purchasing common stock

5,000,000

Promissory note paid for purchasing common stock

51,000,000

Promissory note

55,300,000

4,300,000

Additional estimated post-closing adjustment related to working capital and other assets acquired

2,900,000

Additional aggregate payments

62,000,000

Purchase of domain names

100,000

3,800,000

Estimated purchase price

109,200,000

Goodwill

1,074,302,000

984,207,000

92,800,000

Long-lived intangible assets

8,200,000

6,700,000

5,300,000

300,000

Property & equipment

2,700,000

Other assets

4,700,000

Working capital

200,000

Other payables

5,400,000

Deferred tax liabilities

3,300,000

Deferred revenue

3,000,000

Revenue from acquisitions

$2,500,000

Property_and_Equipment_and_Cap2

Property and Equipment and Capital Lease Obligations - Components of Property and Equipment (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	$95,270	$74,844
Less accumulated depreciation	-32,082	-25,129
Property and equipment-net	63,188	49,715
Software [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	17,766	4,503
Computers and Office Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	65,741	59,201
Furniture and Fixtures [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	4,206	3,715
Leasehold Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	6,536	6,033
Construction in Process [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment-at cost	$1,021	$1,392

Property_and_Equipment_and_Cap3

Property and Equipment and Capital Lease Obligations - Additional Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Property Plant And Equipment [Abstract]	'	'
Term of lease	'36 months	'
Depreciation expense	$7,046	$3,925

Property_and_Equipment_and_Cap4

Property and Equipment and Capital Lease Obligations - Summary of Assets under Capital Lease (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]	'	'
Less accumulated depreciation	($975)	'
Assets under capital lease -net	10,729	'
Software [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Assets under capital lease gross	$11,704	'

Property_and_Equipment_and_Cap5

Property and Equipment and Capital Lease Obligations - Summary of Future Minimum Lease Payments under Capital Lease Agreements (Detail) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2014
Property Plant And Equipment [Abstract]	'
Remainder of 2014	$3,084
2015	4,112
2016	4,420
Total minimum lease payments	11,616
Less amount representing interest	-797
Present value of minimum lease payments (capital lease obligation)	10,819
Current portion	3,654
Long-term portion	$7,165

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Amount paid to earn-out provisions	$0.20

Fair_Value_Measurements_Basis_

Fair Value Measurements - Basis of Fair Value Measurements (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financial liabilities:	'	'
Contingent earn-out consideration	$1,407	$1,655
Total financial liabilities	1,407	1,655
Quoted Prices in Active Markets for Identical Items (Level 1) [Member]	'	'
Financial liabilities:	'	'
Contingent earn-out consideration	'	'
Total financial liabilities	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'
Financial liabilities:	'	'
Contingent earn-out consideration	'	'
Total financial liabilities	'	'
Significant Unobservable Inputs (Level 3) [Member]	'	'
Financial liabilities:	'	'
Contingent earn-out consideration	1,407	1,655
Total financial liabilities	$1,407	$1,655

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Changes in Goodwill Balances (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Goodwill [Line Items]	'
Goodwill balance at December 31, 2013	$984,207
Goodwill related to acquisitions	-2,870
Foreign translation impact	175
Goodwill balance at March 31, 2014	1,074,302
Acquisitions 2014 [Member]	'
Goodwill [Line Items]	'
Goodwill related to acquisitions	$92,790

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'	'	'
Impairment	$0	$0	$0
Goodwill related to acquisitions	2,870,000	'	'
Amortization expense included in cost of revenue	$24,079,000	$26,070,000	'

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	$625,464
Accumulated Amortization	219,693
Net Carrying Amount	405,771
Developed Technology [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	190,730
Accumulated Amortization	41,301
Net Carrying Amount	149,429
Weighted Average Useful Life	'9 years
Subscriber Relationships [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	357,106
Accumulated Amortization	154,700
Net Carrying Amount	202,406
Weighted Average Useful Life	'13 years
Trade-Names [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	74,494
Accumulated Amortization	23,070
Net Carrying Amount	51,424
Weighted Average Useful Life	'13 years
Intellectual Property [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	2,820
Accumulated Amortization	583
Net Carrying Amount	2,237
Weighted Average Useful Life	'8 years
Leasehold Interests [Member]	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	314
Accumulated Amortization	39
Net Carrying Amount	$275
Weighted Average Useful Life	'1 year

Investments_Additional_Informa

Investments - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'
Amount of investment for acquisition	'	$6,556	'	$6,535	$10,000
Ownership interest percentage	10.00%	'	'	'	'
Ownership interest	40.00%	'	'	'	'
Recognized net income	'	$21	$137	'	'
Proportionate share exceed of the company's consolidated assets or income	'	10.00%	'	10.00%	'
Minimum [Member]	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'
Voting interest	'	20.00%	'	'	'
Maximum [Member]	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'
Voting interest	'	50.00%	'	'	'
Investment One [Member]	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'
Percentage of acquisition	'	'	'	'	50.00%

Notes_Payable_Additional_Infor

Notes Payable - Additional Information (Detail) (USD $)

0 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

Nov. 25, 2013

Nov. 30, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Aug. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Nov. 09, 2012

Mar. 31, 2014

Nov. 09, 2012

Nov. 30, 2013

Mar. 31, 2014

Nov. 09, 2012

Nov. 30, 2013

Mar. 31, 2014

London Interbank Offered Rate (LIBOR) [Member]

HostGator [Member]

First Lien [Member]

November 2012 First Lien [Member]

Revolving Credit Facility [Member]

November 2012 Second Lien [Member]

LIBOR First Lien Term Loan [Member]

November 2013 First Lien [Member]

Promissory Note [Member]

London Interbank Offered Rate (LIBOR) [Member]

November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Principal amount of term loan outstanding

$1,044,800,000

$1,047,400,000

Interest at LIBOR based rates

5.00%

Face amount

800,000,000

315,000,000

Aggregate principal amount not to exceed

125,000,000

85,000,000

Incremental term loan amount

90,000,000

Debt instrument LIBOR rate

5.00%

6.25%

9.00%

Debt instrument basis spread on LIBOR rate

1.25%

1.50%

1.25%

Debt instrument reference rate

3.00%

4.00%

5.25%

Federal funds effective rate

0.50%

Adjusted LIBOR rate

2.00%

2.25%

Non-refundable fee-unused facility

0.50%

Mandatory repayments on term loan

2,000,000

315,000,000

Amortization of deferred financing costs

19,000

53,000

100,000

Additional repayment of term loan

166,200,000

First lien term loan outstanding

1,050,000,000

Reduction in overall indebtedness

148,800,000

Revolving Credit Facility increase in borrowing capacity

40,000,000

Mandatory repayment of loan

2,600,000

Maturity date

9-Nov-19

Revolver maturity period

22-Dec-16

LIBOR based interest rate reduced

4.00%

Greater of the LIBOR rate

1.00%

Interest expense and service fees

13,351,000

21,034,000

Interest expense

13,635,000

21,704,000

6,000

600,000

Capital lease obligations

143,000

Deferred acquisition liability

$70,000

Notes_Payable_Schedule_of_Inte

Notes Payable - Schedule of Interest Rates and Interest Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Long-Term Debt [Line Items]	'	'
Non-refundable fee-unused facility	0.50%	0.50%
Interest expense and service fees	$13,351	$21,034
Amortization of deferred financing fees	19	53
Amortization of net present value of deferred consideration	6	617
Interest expense for capital lease obligations	143	'
Other interest expense	46	'
Promissory Note [Member]	'	'
Long-Term Debt [Line Items]	'	'
Interest expense for deferred consideration promissory note	$70	'
Minimum [Member]	'	'
Long-Term Debt [Line Items]	'	'
Interest rate-LIBOR	5.00%	6.25%
Interest rate-reference	5.00%	7.75%
Maximum [Member]	'	'
Long-Term Debt [Line Items]	'	'
Interest rate-LIBOR	7.75%	10.25%
Interest rate-reference	8.50%	10.25%

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
	Vote	Dec. 31, 2013
Equity [Abstract]	'	'
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares issued	'	'
Preferred stock, shares outstanding	'	'
Common stock, shares authorized	500,000,000	500,000,000
Common stock, par value	$0.00	$0.00
Number of vote per share	1	'

Stockholders_Equity_Summary_of

Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Equity [Abstract]	'	'
Beginning balance	$155,262	'
Issuance of common stock for Directi acquisition	25,476	'
Stock-based compensation	3,544	553
Non-controlling interest accretion	-551	'
Foreign currency translation adjustment	22	'
Net loss	-22,469	-21,728
Ending balance	$161,284	'

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's Initial Public Offering (Detail) (2012 Plan Stock Awards [Member])	3 Months Ended
	Mar. 31, 2014
2012 Plan Stock Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Non-vested, Beginning balance	1,456,666
Non-vested, Forfeitures	-8,534
Non-vested, Vested	-162,824
Non-vested, Ending balance	1,285,308

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of Restricted Stock Units that were Granted in Connection with Initial Public Offering and the Non-Vested Balance (Detail) (Restricted Stock Units (RSUs) [Member], USD $)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Non-vested, Beginning balance	461,556
Non-vested, Vested	-30,098
Non-vested, Ending balance	431,458
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
Prior Equity Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Non-vested, Beginning balance	288,014
Non-vested, Vested	-33,218
Non-vested, Ending balance	254,796
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

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (2013 Stock Incentive Plan [Member])	3 Months Ended
	Mar. 31, 2014
2013 Stock Incentive Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock options vest period	'4 years

StockBased_Compensation_Stock_

Stock-Based Compensation - Stock Incentive Plan (Detail)	3 Months Ended
Stock-Based Compensation - Stock Incentive Plan (Detail)	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Risk-free interest rate	2.10%
Expected volatility	60.00%
Expected life (in years)	'6 years 3 months
Expected dividend yield	'

StockBased_Compensation_Summar2

Stock-Based Compensation - Summary of Stock Options (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock Option, Outstanding at December 31, 2013	5,619,671
Stock Options, Granted	2,902
Stock Options, Canceled	-208,100
Stock Option, Outstanding at March 31, 2014	5,414,473
Stock Option, Exercisable at March 31, 2014	294,144
Stock Option, Expected to vest at March 31, 2014	5,027,874
Stock Option, Exercisable and expected to vest at March 31, 2014	5,322,018
Weighted - Average Exercise Price, Outstanding at December 31, 2013	$12
Weighted - Average Exercise Price, Granted	$12.12
Weighted - Average Exercise Price, Canceled	$12
Weighted - Average Exercise Price, Outstanding at March 31, 2014	$12
Weighted - Average Exercise Price, Exercisable at March 31, 2014	$12
Weighted - Average Expected to vest at March 31, 2014	$12
Weighted - Average Exercise Price, Vested and expected to vest at March 31, 2014	$12
Weighted - Average Remaining Contractual Term, Outstanding	'9 years 7 months 6 days
Weighted - Average Remaining Contractual Term, Exercisable at March 31, 2014	'9 years 7 months 6 days
Weighted - Average Remaining Contractual Term, Expected to vest at March 31, 2014	'9 years 7 months 6 days
Weighted - Average Remaining Contractual Term, Vested and expected to vest at March 31, 2014	'9 years 7 months 6 days
Aggregate Intrinsic Value, Outstanding	$5,468
Aggregate Intrinsic Value, Exercisable	297
Aggregate Intrinsic Value, Expected to vest at March 31, 2014	5,078
Aggregate Intrinsic Value, Exercisable and expected to vest at March 31, 2014	$5,375

StockBased_Compensation_Summar3

Stock-Based Compensation - Summary of Stock Options (Parenthetical) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Estimated fair value of the Company's common stock	$13.01

StockBased_Compensation_Summar4

Stock-Based Compensation - Summary of Restricted Stock Awards and Restricted Stock Units (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Non-vested, Beginning balance	714,928
Granted	60,723
Canceled	-46,444
Non-vested, Ending balance	729,207
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$12
Weighted Average Grant Date Fair Value, Granted	$12.12
Weighted Average Grant Date Fair Value, Canceled	$12
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$12.01
Restricted Stock Units (RSUs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Non-vested, Beginning balance	461,556
Non-vested, Vested and unissued	-30,098
Non-vested, Ending balance	431,458
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

StockBased_Compensation_Summar5

Stock-Based Compensation - Summary of Total Stock-Based Compensation Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]	'	'
Total operating expense	$3,544	$553
Cost of Revenue [Member]	'	'
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]	'	'
Total operating expense	132	9
Sales and Marketing [Member]	'	'
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]	'	'
Total operating expense	368	40
Engineering and Development [Member]	'	'
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]	'	'
Total operating expense	193	26
General and Administrative [Member]	'	'
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]	'	'
Total operating expense	$2,851	$478

StockBased_Compensation_Summar6

Stock-Based Compensation - Summary of Unrecognized Compensation Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
2012 Plan [Member] \| Pre IPO Non-vested Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	$1,129
Weighted Average Period To Be Recognized	'2 years
2012 Plan [Member] \| Restricted Stock Units (RSUs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	3,016
Weighted Average Period To Be Recognized	'1 year 10 months 24 days
2013 Plan [Member] \| Restricted Stock Units (RSUs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	5,151
Weighted Average Period To Be Recognized	'3 years 7 months 6 days
2013 Plan [Member] \| Equity Option [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	32,707
Weighted Average Period To Be Recognized	'3 years 6 months
2013 Plan [Member] \| Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized Compensation Expense	$7,590
Weighted Average Period To Be Recognized	'3 years 6 months

Redeemable_Noncontrolling_Inte1

Redeemable Non-controlling Interest - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014
Noncontrolling Interest [Abstract]	'
Initial fair value of redeemable non-controlling interest	$20.80
Non-controlling interest value	$21.30

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Tax Information [Line Items]	'	'	'
Unrecognized tax positions	$0	'	$0
Valuation allowance	'	'	55,800,000
Tax expense (benefit)	3,439,000	-12,061,000	'
Cumulative pre-tax book loss position period	'3 years	'	'
Provision related to foreign taxes	1,800,000	'	'
U.S. alternative minimum taxes	600,000	'	'
Increase in deferred tax liabilities	1,000,000	'	'
Amount of net operating loss carry-forwards available to offset future U.S. federal taxable income	'	'	214,200,000
Amount of net operating loss carry-forwards available to offset future state taxable income	'	'	152,800,000
Expire date of carry forwards	'	'	'through 2033
Future foreign taxable income	'	'	33,700,000
Net operating loss carry-forwards	77,100,000	'	'
India [Member]	'	'	'
Income Tax Information [Line Items]	'	'	'
Loss carry-forwards	'	'	2,100,000
UK [Member]	'	'	'
Income Tax Information [Line Items]	'	'	'
Loss carry-forwards	'	'	$31,600,000

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Feb. 28, 2014
Commitments And Contingencies Disclosure [Abstract]	'
Service agreement effective date	1-Jan-14
Contractual obligations term	'10 years
Estimated financial obligations	$102

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Related Party Transaction [Line Items]	'	'
Cost of revenue	$89,191,000	$87,208,000
Engineering and development expense	4,953,000	6,140,000
Sales and marketing expense	41,624,000	28,531,000
General and administrative expense	15,481,000	13,096,000
Immediate Family Member of Management or Principal Owner [Member]	'	'
Related Party Transaction [Line Items]	'	'
Cost of revenue	1,100,000	1,400,000
Engineering and development expense	200,000	300,000
Sales and marketing expense	100,000	0
General and administrative expense	100,000	400,000
Director [Member] \| Cost of Revenue [Member]	'	'
Related Party Transaction [Line Items]	'	'
Cost of revenue	$700,000	$700,000

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	3 Months Ended				0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	2-May-14	Apr. 30, 2014	Apr. 30, 2014
			Directi [Member]	Directi [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
				Maximum [Member]		Directi [Member]	Directi [Member]
							Domain Names [Member]
Subsequent Event [Line Items]	'	'	'	'	'	'	'
Amount paid in full settlement of the promissory note	'	'	'	'	'	$55,300,000	'
Cash Payment on purchase net	18,028,000	2,546,000	'	'	'	106,300,000	'
Estimated additional payments	'	'	2,900,000	'	'	'	'
Purchase price	'	'	'	'	'	109,200,000	'
Additional aggregate payments	'	'	'	62,000,000	'	'	'
Purchase of domain names	100,000	'	'	'	'	'	3,800,000
Investment made on asset	'	'	'	'	$15,000,000	'	'
Percentage of outstanding shares invested	'	'	'	'	5.00%	'	'