Endurance International 10-K27 Feb 152014 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2014	Feb. 20, 2015	Jun. 30, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	EIGI
Entity Registrant Name	Endurance International Group Holdings, Inc.
Entity Central Index Key	1237746
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		132,358,092
Entity Public Float			$474,673,463

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$32,379	$66,815
Restricted cash	1,325	1,983
Accounts receivable	10,201	7,160
Deferred tax asset-short term	13,961	12,981
Prepaid domain name registry fees	49,605	22,812
Prepaid expenses and other current assets	13,173	7,050
Total current assets	120,644	118,801
Property and equipment-net	56,837	49,715
Goodwill	1,105,023	984,207
Other intangible assets-net	410,338	406,140
Deferred financing costs	400	430
Investments	40,447	6,535
Prepaid domain name registry fees, net of current portion	7,957	4,295
Other assets	4,397	10,815
Total assets	1,746,043	1,580,938
Current liabilities:
Accounts payable	8,960	7,950
Accrued expenses	38,275	35,433
Deferred revenue	259,567	194,196
Current portion of notes payable	60,500	10,500
Current portion of capital lease obligations	3,793
Deferred consideration-short term	13,917	24,437
Other current liabilities	10,358	6,796
Total current liabilities	395,370	279,312
Long-term deferred revenue	65,850	55,298
Notes payable-long term	1,026,375	1,036,875
Capital lease obligations	4,302
Deferred tax liability-long term	35,579	26,171
Deferred consideration	10,722	4,207
Other liabilities	2,806	3,041
Total liabilities	1,541,004	1,404,904
Redeemable non-controlling interest	30,543	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 130,959,113 shares issued at December 31, 2013 and December 31, 2014, respectively; 124,766,544 and 130,914,333 outstanding at December 31, 2013 and December 31, 2014, respectively	14	13
Additional paid-in capital	816,591	754,061
Accumulated other comprehensive loss	-517	-55
Accumulated deficit	-641,592	-598,757
Total stockholders' equity	174,496	155,262
Total liabilities, redeemable non-controlling interest and stockholders' equity	$1,746,043	$1,580,938

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Oct. 23, 2013
Statement of Financial Position [Abstract]
Preferred stock, par value	$0.00	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00	$0.00
Common stock, shares authorized	500,000,000	500,000,000	500,000,000
Common stock, shares issued	130,959,113	124,788,853	105,187,363
Common stock, shares outstanding	130,914,333	124,766,544	105,187,363

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Loss (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Revenue	$629,845	$520,296	$292,156
Cost of revenue	381,488	350,103	237,179
Gross profit	248,357	170,193	54,977
Operating expense:
Sales and marketing	146,797	117,689	83,110
Engineering and development	19,549	23,205	13,803
General and administrative	69,533	92,347	48,411
Total operating expense	235,879	233,241	145,324
Income (loss) from operations	12,478	-63,048	-90,347
Other expense:
Interest income	331	122	34
Interest expense	-57,414	-98,449	-126,165
Total other expense-net	-57,083	-98,327	-126,131
Loss before income taxes and equity earnings of unconsolidated entities	-44,605	-161,375	-216,478
Income tax expense (benefit)	6,186	-3,596	-77,203
Loss before equity earnings of unconsolidated entities	-50,791	-157,779	-139,275
Equity loss of unconsolidated entities, net of tax	61	2,067	23
Net loss	-50,852	-159,846	-139,298
Net loss attributable to non-controlling interest	-8,017	-659
Net loss attributable to Endurance International Group Holdings, Inc.	-42,835	-159,187	-139,298
Comprehensive loss:
Foreign currency translation adjustments	-462	-55
Total comprehensive loss	($43,297)	($159,242)	($139,298)
Net loss per share attributable to Endurance International Group Holdings, Inc.-basic and diluted	($0.34)	($1.55)	($1.44)
Weighted-average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.-basic and diluted	127,512,346	102,698,773	96,562,674

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Series E Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]
In Thousands, except Share data	Total	Series E Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2011	$652,540	$149,604	$10	$507,307		($4,381)
Beginning balance, shares at Dec. 31, 2011		150,000	96,370,113
Subscription payment	100			100
Redemption of series E preferred stock	-150,000	-150,000
Redemption of series E preferred stock, shares		-150,000
Issuance costs of series E preferred stock	-53	396				-449
Dividends paid on series E preferred stock	-5,963					-5,963
Dividends paid on common stock	-289,479					-289,479
Vesting of restricted shares			375,879
Net loss	-139,298					-139,298
Stock-based compensation	2,308			2,308
Ending balance at Dec. 31, 2012	70,155		10	509,715		-439,570
Ending balance, shares at Dec. 31, 2012			96,745,992
Issuance of stock	234,393		2	234,391
Issuance of stock, shares			21,051,000
Fractional share payment	-1			-1
Fractional share payment, shares			-47
Vesting of restricted shares			6,971,595
Vesting of restricted shares, value			1	-1
Common stock returned to the Company	-24
Common stock returned to the Company, shares			-1,996
Retirement of treasury stock				-24
Retirement of treasury stock, shares	0	0	0	0	0	0
Non-controlling interest accretion	-123			-123
Foreign currency translation adjustments arising during the period	-55				-55
Net loss	-159,187			-659		-159,187
Stock-based compensation	10,763			10,763
Ending balance at Dec. 31, 2013	155,262		13	754,061	-55	-598,757
Ending balance, shares at Dec. 31, 2013			124,766,544
Issuance of stock	41,095			41,095
Issuance of stock, shares			3,000,000
Vesting of restricted shares			866,820
Vesting of restricted shares, value			1	-1
Exercise of stock options, amount	137			137
Exercise of stock options, shares	11,390		11,390
Shares issued in connection with acquisitions, amount	27,235			27,235
Shares issued in connection with acquisitions, shares			2,269,579
Non-controlling interest accretion	-13,962			-13,962
Foreign currency translation adjustments arising during the period	-462				-462
Net loss	-42,835			-8,017		-42,835
Stock-based compensation	16,043			16,043
Ending balance at Dec. 31, 2014	$174,496		$14	$816,591	($517)	($641,592)
Ending balance, shares at Dec. 31, 2014			130,914,333

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Issuance costs of common stock in connection with initial public offering	$2,405,176	$18,219,271
Common Stock [Member]
Issuance costs of common stock in connection with initial public offering	2,405,176	18,219,271
Additional Paid-in Capital [Member]
Issuance costs of common stock in connection with initial public offering	$2,405,176	$18,219,271

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net loss	($50,852)	($159,846)	($139,298)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation of property and equipment	30,956	18,615	6,869
Amortization of other intangible assets from acquisitions	102,723	105,915	88,118
Amortization of deferred financing costs	83	2,768	43,405
Amortization of net present value of deferred consideration	183	1,590	1,093
Stock-based compensation	16,043	10,763	2,308
Deferred tax expense (benefit)	3,640	-4,777	-77,610
(Gain) loss on sale of assets	-168	309	469
Equity loss of unconsolidated entities, net of tax	61	2,067	23
Dividend from minority interest	167
(Gain) loss from change in deferred consideration	384	-466
Financing costs expensed		10,833	29,281
Changes in operating assets and liabilities:
Accounts receivable	-691	-1,075	-268
Prepaid expenses and other current assets	-25,675	-7,147	-22,199
Accounts payable and accrued expenses	-1,615	2,020	19,058
Deferred revenue	67,654	51,047	104,069
Net cash provided by operating activities	142,893	32,616	55,318
Cash flows from investing activities
Business acquired in purchase transaction, net of cash acquired	-93,698	-38,659	-299,165
Proceeds from sale of assets	100	23
Cash paid for minority investment	-34,140		-250
Purchases of property and equipment	-23,904	-33,523	-28,163
Purchases of intangible assets	-200	-751
Proceeds from sale of property and equipment	94	54	127
Net (deposits) and withdrawals of principal balances in restricted cash accounts	433	-231	3,947
Net cash used in investing activities	-151,315	-73,087	-323,504
Cash flows from financing activities:
Proceeds from issuance of term loan		1,145,000	1,925,000
Repayment of term loan	-10,500	-1,212,625	-1,160,000
Proceeds from borrowing of revolver	150,000	57,000	15,000
Repayment of revolver	-100,000	-72,000
Payment of financing costs	-53	-12,552	-52,890
Payment of deferred consideration	-98,318	-55,635	-7,237
Partial settlement of redeemable non-controlling interest liability	-4,190
Principal payments on capital lease obligations	-3,608
Proceeds from exercise of stock options	137
Proceeds from issuance of common stock	43,500	252,612	100
Issuance costs of common stock	-2,904	-17,512
Payment of dividends on common stock			-289,479
Net cash provided by (used in) financing activities	-25,936	84,288	274,478
Net effect of exchange rate on cash and cash equivalents	-78	-247
Net increase (decrease) in cash and cash equivalents	-34,436	43,570	6,292
Cash and cash equivalents:
Beginning of period	66,815	23,245	16,953
End of period	32,379	66,815	23,245
Supplemental cash flow information:
Interest paid	57,418	100,856	70,176
Income taxes paid	2,615	1,502	796
Supplemental disclosure of non-cash financing activities:
Shares issued in connection with the acquisition of Directi	27,235
Assets acquired under capital lease	11,704
Series E Preferred Stock [Member]
Cash flows from financing activities:
Issuance costs of series E preferred stock			-53
Redemption of series E preferred stock			-150,000
Dividends paid on series E preferred stock			($5,963)

Nature_of_Business

Nature of Business	12 Months Ended
Nature of Business	Dec. 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 & Co. on December 22, 2011 of a controlling interest in EIG Investors, EIG and EIG’s subsidiary companies. On November 7, 2012, Holdings reorganized as a Delaware limited partnership and on June 25, 2013, Holdings converted into a Delaware C-corporation and changed its name to Endurance International Group Holdings, Inc.
	Stock Split and Restated Certificate of Incorporation
	On October 23, 2013, immediately after giving effect to a 105,187.363-for-one stock split, the Company had 105,187,363 shares of common stock issued and outstanding. After giving effect to the Company’s restated certificate of incorporation filed on October 23, 2013, the Company’s authorized capital stock consists of 500,000,000 shares of common stock, par value $0.0001 per share, and 5,000,000 shares of preferred stock, par value $0.0001 per share.
	Corporate Reorganization
	Pursuant to the terms of a corporate reorganization, that was completed following the stock split and prior to the completion of the Company’s initial public offering, as described below, the former direct owner of Holdings, a limited partnership, was dissolved and in liquidation distributed the shares of the Company’s common stock to its limited partners. The distribution of common stock to the limited partners was determined by the value each partner would have received under the distribution provisions of the limited partnership agreement, valued by reference to the initial public offering price.
	All share data in the consolidated financial statements retroactively reflects the shares of the Company’s common stock after giving effect to the 105,187.363-for-one stock split and the filing of the restated certificate of incorporation.
	Initial Public Offering
	On October 30, 2013, the Company closed an initial public offering (“IPO”) of its common stock, which resulted in the sale of 21,051,000 shares of its common stock at a public offering price of $12.00 per share. The offering resulted in gross proceeds to the Company of $252.6 million and net proceeds to the Company of $232.1 million after deducting underwriting discounts, commissions and offering expenses payable by the Company. Offering expenses include both capitalized and non-capitalized expenses.
	Follow-on Offering
	On November 26, 2014, the Company closed a follow-on offering of its common stock, in which the Company sold 3,000,000 shares of its common stock at a public offering price of $14.50 per share and selling stockholders sold 10,000,000 shares of common stock. The underwriters also exercised their overallotment option to purchase an additional 1,950,000 shares of common stock from the selling stockholders. The Company did not receive any proceeds from the sale of shares by the selling stockholders. The follow-on offering resulted in gross proceeds to the Company of $43.5 million and net proceeds to the Company of $41.1 million after deducting underwriting discounts and commissions of $1.7 million and other estimated offering expenses of approximately $0.7 million payable by the Company. The Company incurred an additional $0.3 million of offering expenses on behalf of the selling stockholders, which was included in general and administrative expense in the consolidated statement of operations and comprehensive loss for the year ended December 31, 2014.

Summary_of_Significant_Account

Summary of Significant Accounting Policies

12 Months Ended

Dec. 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.

The June 25, 2013 conversion of the Company into a Delaware C-corporation, as discussed in Note 1, has been applied to the Company’s financial statements retroactively to December 22, 2011, as if the conversion was effective December 22, 2011.

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.

Cash Equivalents

Cash and cash equivalents include all highly liquid investments with remaining maturities of three months or less at the date of purchase.

Restricted Cash

Restricted cash is composed of certificates of deposits and cash held by merchant banks and payment processors, which provide collateral against any charge-backs, fees, or other items that may be charged back to the Company by credit card companies and other merchants.

Accounts Receivable

Accounts receivable is primarily composed of cash due from credit card companies for unsettled transactions charged to subscribers’ credit cards. As these amounts reflect authenticated transactions that are fully collectible, the Company does not maintain an allowance for doubtful accounts. The Company also accrues for earned referral fees and commissions, which are governed by reseller or affiliate agreements, when the amount is reasonably estimable.

Prepaid Domain Name Registry Fees

Prepaid domain name registry fees represent amounts that are paid in full at the time a domain is registered by one of the Company’s registrars on behalf of a subscriber. The registry fees are recognized on a straight-line basis over the term of the domain registration period.

Fair Value of Financial Instruments

The carrying amounts of the Company’s financial instruments, which include cash equivalents, accounts receivable, accounts payable and certain accrued expenses, approximate their fair values due to their short maturities. The fair value of the Company’s notes payable are based on the borrowing rates currently available to the Company for debt with similar terms and average maturities and approximate their carrying value.

Concentrations of Credit and Other Risks

Financial instruments which potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. Cash and cash equivalents are maintained at accredited financial institutions, and PayPal balances are at times without and in excess of federally insured limits. The Company has never experienced any losses related to these balances and does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.

For the years ended December 31, 2012, 2013 and 2014, no subscriber represented 10% or more of the Company’s total revenue.

Property and Equipment

Property and equipment is recorded at cost or fair value if acquired in an acquisition. The Company also capitalizes the direct costs of constructing additional computer equipment for internal use, as well as upgrades to existing computer equipment which extend the useful life, capacity or operating efficiency of the equipment. Capitalized costs include the cost of materials, shipping and taxes. Materials used for repairs and maintenance of computer equipment are expensed and recorded as a cost of revenue. Materials on hand and construction-in-process are recorded as property and equipment. Assets recorded under capital lease are depreciated over the lease term. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows:

Software

Two to three years

Computers and office equipment

Three years

Furniture and fixtures

Five years

Leasehold improvements

Shorter of useful life or remaining term of the lease

Software Development Costs

The Company accounts for software development costs for internal use software under the provisions of ASC 350-40, “Internal-Use Software” (“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 year ended December 31, 2012. There was $1.2 million and $5.4 million of software development costs capitalized for the years ended December 31, 2013 and 2014, respectively.

Investments

The Company has minority investments in several privately-held companies. The Company’s voting interest in each of these companies is between 25% and 50%. The Company accounts for these investments under the equity method of accounting. 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. The Company’s share of net earnings or losses of the investee are reflected in equity losses of unconsolidated entities, net of tax, in the Company’s accompanying consolidated statements of operations.

The Company assesses the need to record impairment losses on its investments and records such losses when the impairment of an investment is determined to be other than temporary in nature. On October 31, 2013 the Company reduced its 50% voting interest in one of the minority investments to 40% and recorded a $2.6 million impairment charge (see Note 7).

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 purchase method of accounting. Goodwill is not amortized, but is subject to periodic review for impairment. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in 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. Under U.S. GAAP, a reporting unit is either the equivalent of, or one level below, an operating segment. The Company has determined it operates in one segment and 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.

The Company assesses fair value based on current market capitalization. As of December 31, 2013 and 2014, the fair value of the Company’s reporting unit exceeded the carrying value of the reporting unit’s net assets by more than 900% 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 $1,105.0 million as of December 31, 2013 and 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, developed technology, domain names available for sale and in-process research and development (“IPR&D”). The Company also has long-lived tangible assets, primarily consisting of property and equipment. The majority of the Company’s intangibles are recorded in connection with its various business combinations. The Company’s intangibles are recorded at fair value at the time of their acquisition. The Company amortizes intangibles 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 years ended December 31, 2012, 2013 and 2014.

Acquired In-Process Research and Development (IPR&D)

Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and reviewed on a quarterly basis to determine future use. Any impairment loss of the acquired IPR&D is charged to expense in the period the impairment is identified. Upon commercialization, the acquired fair value of the IPR&D will be amortized over its estimated useful life. No such impairment losses have been identified in the years ended December 31, 2012, 2013 and 2014. During 2013, the Company completed its development process of in-process research and development it had acquired as of December 31, 2012 and the capitalized amount of $1.3 million was reclassified to developed technology as of December 31, 2013 and is being amortized over the estimated useful life of 5.0 years. During 2014 the Company capitalized $4.6 million of IPR&D in connection with its acquisition of WebZai, Ltd. (“Webzai”). During 2014, the Company did not capitalize any IPR&D in connection with its acquisitions of the web presence business of Directi (“Directi”), the domain name business, the assets of the BuyDomains business of Name Media, Inc. (“BuyDomains”) and the assets of Arvixe LLC (“Arvixe”).

Deferred Financing Costs

Deferred financing costs comprise fees and costs incurred by the Company in connection with obtaining notes payable. Deferred financing costs are amortized over the term of the related debt agreement.

Revenue Recognition

The Company generates revenue primarily from selling subscriptions for cloud-based products and services. The subscriptions are similar across all of the Company’s brands and are provided under contracts pursuant to which the Company has ongoing obligations to support the subscriber. These contracts are generally for service periods of up to 36 months and typically require payment in advance. The Company recognizes the associated revenue ratably over the service period, 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 premium domains is recognized when persuasive evidence of an arrangement to sell such domains exists, delivery of an authorization key to access the domain name has occurred, the fee for the sale of the premium domain is fixed or determinable, and collection of the fee for the sale of the premium domain is deemed probable.

Revenue from the sale of non-term based applications and services, such as 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 other cloud-based products and services.

The Company follows the provisions of the FASB, Accounting Standards Update (“ASU”) No. 2009-13 (“ASU 2009-13”), Revenue Recognition (Topic 605), Multiple-Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force 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.

Direct Costs of Revenue

The Company’s direct costs of revenue include only those costs directly incurred in connection with the provision of its cloud-based products and services. The direct costs of registering domain names with registries are spread over the terms of the arrangement and the cost of reselling domains of other third-party registrars are expensed as incurred. Cost of revenue includes depreciation on data center equipment and support infrastructure and amortization expense related to the amortization of long-lived intangible assets.

Engineering and Development Costs

Engineering and development costs incurred in the development and maintenance of the Company’s technology infrastructure are expensed as incurred.

Sales and Marketing Costs

The Company engages in sales and marketing through various online marketing channels, which include affiliate and search marketing as well as online partnerships. The Company expenses sales and marketing costs as incurred. For the years ended December 31, 2012, 2013 and 2014, the Company’s sales and marketing costs were $83.1 million, $117.7 million and $146.8 million, respectively.

Foreign Currency

The Company has sales in a number of foreign currencies. In 2013, the Company commenced operations in foreign locations which report in the local currency. The assets and liabilities of the Company’s foreign locations are translated into U.S. dollars at current exchange rates as of the balance sheet date, and revenues and expenses are translated at average monthly exchange rates. The resulting translation adjustments are recorded as a separate component of stockholders’ equity and have not been material. Foreign currency transaction gains and losses relate to the settlement of assets or liabilities in another currency.

Foreign currency transaction gains (losses) were not material during the year ended December 31, 2012. Foreign currency transaction losses were $1.2 million and $0.8 million during the years ended December 31, 2013 and 2014, respectively. These amounts are recorded in general and administrative expense.

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 to be sustained. Recognized income tax positions are measured at the largest amount that is more likely than not to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. There were no unrecognized tax benefits in the years ended December 31, 2012, 2013 and 2014.

The Company records interest related to unrecognized tax benefits in interest expense and penalties in operating expenses. During the years ended December 31, 2012, 2013 and 2014, the Company did not recognize any interest and penalties related to unrecognized tax benefits.

Stock-Based Compensation

The Company follows the provisions of ASC 718, Compensation—Stock Compensation (“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. All share data retroactively reflect the shares of the Company’s common stock after giving effect to the 105,187.363-for-one stock split and the filing of the restated certificate of incorporation.

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 years ended December 31, 2012, 2013 and 2014, non-vested shares granted prior to the Company’s IPO, stock options, restricted stock awards and restricted stock units amounting to 8,108,177, 8,822,924 and 9,154,677, respectively, were excluded from the denominator in the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.

Year Ended

December 31,

2012

2013

2014

(in thousands, except share

amount and per share data)

Computation of basic and diluted net loss per share:

Net loss attributable to Endurance International Group Holdings, Inc.

(139,298

)

(159,187

)

(42,835

)

Net loss per share attributable to Endurance International Group Holdings, Inc.:

Basic and diluted

(1.44

)

(1.55

)

(0.34

)

Weighted average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:

Basic and diluted

96,562,674

102,698,773

127,512,346

Guarantees

The Company has the following guarantees and indemnifications:

In connection with its acquisitions of companies and assets from third parties, the Company may provide indemnification or guarantees to the sellers in the event of damages for breaches or other claims covered by such agreements.

In connection with various vendor contracts, including those by which a product or service of a third party is offered to subscribers of the Company, standard guaranty of subsidiary obligations and indemnification obligations exist.

Pursuant to the purchase agreement for the acquisition of Homestead, the Company assumed a reseller agreement between the former owner of Homestead and a reseller. In accordance with the reseller agreement, the Company indemnified its reseller for certain losses related to a patent litigation matter. The former owner of Homestead defended this action, paid for the legal expenses incurred, and indemnified the Company, subject to a deductible and a limit. Any settlements or indemnity claims also remain subject to the terms of indemnification provided in the purchase agreement. The litigation was resolved and dismissed with prejudice and there were no losses to the Company.

As permitted under Delaware and other applicable law, the Company’s charter and by-laws and those of its subsidiary companies provide that the Company shall indemnify its officers and directors for certain liabilities, including those incurred by reason of the fact that the officer or director is, was, or has agreed to serve as an officer or director of the Company. The maximum potential amount of future payments the Company could be required to make under these indemnification provisions is unlimited.

The Company leases office space and equipment under various operating leases. The Company has standard indemnification arrangements under these leases that require the Company to indemnify the lessor against losses, liabilities and claims incurred in connection with the premises or equipment covered by the Company’s lease agreements, the Company’s use of the premises, property damage or personal injury and breach of the agreement.

Through December 31, 2014, the Company had not experienced any losses related to these indemnification obligations and no claims with respect thereto were outstanding other than the Homestead claim as described above. The Company does not expect significant claims related to these indemnification obligations and consequently concluded that the fair value of these obligations is negligible and no related liabilities were established.

Recent Accounting Pronouncements

In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, or ASU 2014-08. Under ASU 2014-08, only disposals representing a strategic shift in operations should be presented as discontinued operations. Those strategic shifts should have a major effect on the organization’s operations and financial results. Additionally, ASU 2014-08 requires expanded disclosures about discontinued operations that will provide financial statement users with more information about the assets, liabilities, income, and expenses of discontinued operations. ASU 2014-08 is effective for fiscal and interim periods beginning on or after December 15, 2014. The Company believes the adoption of ASU 2014-08 will not have an impact on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgments and estimates may be required within the revenue recognition process than are required under existing U.S. GAAP. This standard is effective for annual periods beginning after December 15, 2016, and interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures). The Company is currently evaluating the impact of its pending adoption of ASU 2014-09 on its consolidated financial statements and has not yet determined the method by which it will adopt the standard in 2017.

In June 2014, the FASB issued ASU No. 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, or ASU 2014-12. This new guidance requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant-date fair value of the award. ASU 2014-12 is effective for annual reporting periods beginning after December 15, 2015 with early adoption permitted. The Company is evaluating the potential impact of ASU 2014-12 on its existing stock-based compensation plans.

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 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 typically include subscriber relationships, trade names, domain names held for sale, developed technology and IPR&D. The methodologies used to determine the fair value assigned to subscriber relationships and domain names held for sale are typically based on the excess earnings method that considers the return received from the intangible asset and includes certain expenses and also considers an attrition rate based on the Company’s internal subscriber analysis and an estimate of the average life of the subscribers. The fair value assigned to trade names is typically based on the income approach using a relief from royalty methodology that assumes that the fair value of a trade name can be measured by estimating the cost of licensing and paying a royalty fee for the trade name that the owner of the trade name avoids. The fair value assigned to developed technology typically uses the cost approach. The fair value assigned to IPR&D is based on the cost approach. If applicable, the Company estimates the fair value of contingent consideration payments in determining the purchase price. The contingent consideration is then adjusted to fair value in subsequent periods as an increase or decrease in current earnings in general and administrative expense in the consolidated statements of operations.
	Acquisitions—2012
	Business Combination—HostGator.com LLC
	On July 13, 2012, the Company acquired all of the membership units of HostGator.com LLC, a privately-held leading provider of shared, VPS and dedicated web hosting services to small and medium sized businesses. The aggregate purchase price was $299.8 million, of which $227.3 million was paid in cash at the closing. Transaction expenses of $2.4 million were recorded as general and administrative expense. Under the terms of the purchase agreement (the “HostGator Agreement”), the purchase consideration was subject to a working capital adjustment, which resulted in an additional $0.8 million that was paid by the Company in January 2013. The Company has filed a 338(h)(10) election which allows for goodwill and intangible assets recorded as part of the acquisition to be deductible for U.S. federal income tax purposes. Under the terms of the HostGator Agreement, the Company agreed to compensate the seller for incremental taxes arising from the filing of the election and recorded $0.8 million as due and payable by the Company at December 31, 2012, which resulted in a corresponding increase to the purchase price. This amount was paid in April 2013.
	The Company was also obligated to pay additional purchase consideration of $73.6 million in two installments of $49.4 million and $24.2 million, due 12 and 18 months from the acquisition date, respectively. Of this additional purchase consideration, the net present value of future cash consideration payments consisting of $47.9 million and $23.0 million were included in the aggregate purchase price while the remaining $2.7 million was accreted at the rate of $1.2 million and $1.6 million in each of the years ended December 31, 2012 and 2013, respectively, in interest expense. During 2013 and 2014, the Company paid $49.4 million and $24.2 million, respectively, of deferred consideration. Under the terms of the HostGator Agreement, the Company paid amounts deemed to be future compensation for certain employees in the amounts of $2.9 million and $2.0 million, which were due 12 and 18 months from the acquisition date, respectively. These compensation amounts were recorded as compensation expense over the service term.
	The Company accounted for the HostGator acquisition as a business combination using the purchase method of accounting. The Company allocated the preliminary purchase price to the tangible and identifiable intangible assets and liabilities assumed based on their estimated fair values. Developed technology has an estimated useful life of ten years and subscriber relationships and trade names have estimated useful lives of 20 years and ten years, respectively. The excess of the purchase price over the fair value of the identifiable assets and assumed liabilities was recorded as goodwill.

	The following table summarizes the preliminary purchase price allocation on the acquisition date and the estimated fair values of goodwill, intangible assets and tangible assets acquired and liabilities assumed (in thousands):


	Cash		$	593
	Accounts receivable			512
	Prepaid expenses and other current assets			2,762
	Property and equipment			315
	Intangible assets			116,060
	Investment			10,000
	Deferred tax asset			2,067
	Goodwill			189,296

	Total assets acquired			321,605

	Accounts payable			147
	Accrued expenses			5,102
	Deferred revenue			16,558

	Total liabilities assumed			21,807

	Net assets acquired		$	299,798

	The acquired intangible assets, all of which are being utilized, are comprised of $1.6 million in developed technology, $16.9 million in trade names and $97.6 million in subscriber relationships.
	Homestead Technologies, Inc.
	On September 17, 2012, the Company acquired the assets and assumed certain liabilities in connection with the acquisition of Homestead Technologies, Inc. (“Homestead”). Homestead offers website and online store design software which enables individual and business subscribers to build their websites and online stores. The aggregate purchase price was $61.5 million in cash, consisting of $60.4 million paid at the closing and a working capital adjustment of $1.1 million paid in December 2012. Transaction expenses of $1.5 million were recorded as a general and administrative expense.
	The Company accounted for the acquisition as a business combination using the purchase method of accounting. The Company allocated the purchase price to the tangible and identifiable intangible assets and liabilities assumed based on their estimated fair values. Developed technology has an estimated useful life of five years and subscriber relationships and trade names both have estimated useful lives of ten years. IPR&D has been recorded at fair value and is recognized as an indefinite-lived intangible asset until completion or abandonment of the associated research and development efforts. The excess of the purchase price over the fair value of the identifiable assets and assumed liabilities was recorded as goodwill.

	The following table summarizes the Homestead purchase price allocation on the acquisition date and the estimated fair values of goodwill, intangible assets and tangible assets acquired and liabilities assumed (in thousands):


	Accounts receivable		$	1,575
	Prepaid expenses and other assets			399
	Property and equipment			1,287
	Intangible assets			58,240
	Goodwill			22,063

	Total assets acquired			83,564

	Accounts payable			2,178
	Reserves for refunds and chargebacks			30
	Deferred tax liability			17,558
	Deferred revenue			2,337

	Total liabilities assumed			22,103

	Net assets acquired		$	61,461

	The acquired intangible assets, all of which are being utilized, are composed of $7.7 million in developed technology, $7.6 million in trade names, $41.6 million in subscriber relationships and $1.3 million for IPR&D. Goodwill related to the acquisition is not tax deductible.
	Other Acquisitions—2012
	During the year ended December 31, 2012, the Company made three smaller acquisitions. The aggregate purchase price of $13.5 million was allocated primarily to long-lived intangible assets of $7.8 million, goodwill of $6.5 million, deferred tax assets of $0.5 million, offset by deferred revenue of $1.3 million.
	Under the terms of the asset acquisition purchase agreements, installment payments are payable upon the resolution of certain contingencies. An aggregate amount of $1.8 million and $0.2 million of deferred and earn-out payments were paid during 2013 and 2014, respectively. The balance of earn-out payments as of December 31, 2014 was $1.9 million after recording a net increase in deferred and earn-out payments of $0.4 million. Goodwill in the amount of $0.1 million recorded as part of one of the other acquisitions is deductible for U.S. federal income tax purposes.
	Acquisitions—2013
	During the year ended December 31, 2013, the Company made three small acquisitions. Under the terms of the purchase agreements, the Company acquired all of the outstanding shares of each entity for an aggregate purchase price of $5.4 million in cash plus deferred consideration payable of $5.5 million. The Company had estimated the fair value of the contingent deferred consideration of one acquisition to be $2.7 million. A full and final payment was subsequently made prior to December 31, 2013 for $2.0 million. The balance of the estimated earn-out payment of $0.7 million was written-down and recorded as an increase in current earnings in general and administrative expense in the consolidated statements of operations. The deferred consideration of $2.8 million for one of the other acquisition is payable four years after the acquisition date and is recorded as a long term liability at December 31, 2014. The purchase price of these acquisitions was allocated to long-lived intangible assets of $5.4 million and goodwill of $7.3 million.
	During the year ended December 31, 2013, the Company made an initial investment of $8.8 million to acquire a 17.5% interest in a privately-held company based in the United Kingdom, JDI Backup Ltd. The agreement provided for the acquisition of additional equity interests from the shareholders of the non-controlling interest (“NCI”). In particular, it provided for a call option allowing the Company to acquire an additional equity interest during pre-specified call periods and a put option (only if the call option is exercised), for the then non-controlling interest shareholders (“NCI shareholders”) to put the remaining equity interest to the Company within pre-specified put periods, provided that the call option had been exercised during the appropriate call periods. In the fourth quarter of 2013, the Company exercised the call option in full for an additional $22.2 million in cash to acquire a controlling interest in JDI Backup.
	Under the put option, the NCI shareholders can put their shares to the Company at a price calculated at the time of the exercise of the put option, subject to a minimum of $24.0 million. 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.
	Upon the exercise of the call option, the Company estimated the fair value of the assets and liabilities in accordance with the guidance for business combinations, and estimated that the value of the redeemable non-controlling interest on December 11, 2013 was $20.6 million. The difference between the 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. During the year ended December 31, 2014, the Company paid $4.2 million to increase its investment in JDI Backup and entered into an amendment to the put option with the NCI shareholders, which proportionately reduced the value expected to be paid upon exercise. 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 December 31, 2014 was $30.5 million. NCI 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. See Note 18 to the financial statements for additional information.
The estimated purchase price of $31.0 million and minority interest of $20.6 million was allocated primarily to goodwill of $38.0 million, long-lived intangible assets of $28.5 million and property and equipment of $0.3 million, which were offset by $9.3 million of deferred revenue, other liabilities of $2.6 million, deferred tax liabilities of $1.9 million and negative net working capital of $1.4 million. Goodwill allocated to the acquisition is not tax deductible.
Acquisitions—2014
Directi
On January 23, 2014, the Company acquired the web presence business of Directi from Directi Web Technologies Holdings, Inc. (“Directi Holdings”). Directi provides web presence solutions to small and medium-sized businesses 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 final purchase price of $109.8 million consisted of cash payments of $82.6 million in aggregate and the issuance of 2,269,579 unregistered shares of the Company’s common stock to Directi Holdings equivalent to $27.2 million or $12.00 per share. 2,123,039 shares of the Company’s common stock were issued at closing and 146,540 shares of the Company’s common stock were issued in May 2014. Cash payments consisted of a $5.0 million advance paid in August 2013, $20.5 million paid at the closing and $57.1 million in deferred consideration that was paid during the year ended December 31, 2014.

The purchase price of $109.8 million has been allocated on a preliminary basis to goodwill of $91.2 million, long-lived intangible assets consisting of subscriber relationships, developed technology, trade names and leasehold interests of $7.7 million, $6.4 million, $7.4 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 $2.4 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. The intangible assets are being amortized in accordance with their estimated projected cash flows. Subscriber relationships, developed technology, trade names and leasehold interests are being amortized over 17 years, 7 years, 5 years and 4 years, respectively.
For the year ended December 31, 2014, $29.0 million of revenue from the Company’s 2014 acquisition of Directi was included in the Company’s consolidated statement of operations and comprehensive loss.
Domain Name Business
In addition, in connection with the acquisition of Directi, the Company was initially obligated to make additional aggregate payments of up to approximately $62.0 million subject to specified terms, conditions and operational contingencies. Of this $62.0 million, the Company has committed a total of $36.2 million consisting of cash payments of $27.2 million and future earn-out payments of $9.0 million to purchase a domain name business from a company associated with the founders of Directi Holdings pursuant to agreements entered into during the year ended December 31, 2014. The estimated aggregate purchase price was $36.2 million, which was allocated on a preliminary basis to long-lived intangible assets of $26.6 million and goodwill of $9.6 million, all of which is deductible for tax purposes. The intangible assets are being amortized in accordance with their estimated projected cash flows, using the accelerated method. The goodwill reflects the value of an established domain portfolio business that enables the Company to monetize that domain portfolio.
During the year ended December 31, 2014 the fair value of the earn-out decreased by $47,000. The Company recorded this increase in fair value in general and administrative expense.
Webzai
On August 12, 2014, the Company acquired Webzai, which provides the Company with a simple to use website builder and mobile website builder product, for an aggregate purchase price of $9.5 million, of which $7.0 million was paid in cash at the closing. The Company is also obligated to pay additional consideration of $3.0 million on the second anniversary of the acquisition if certain technological milestones are achieved. The net present value of the additional consideration is $2.5 million and is included in the aggregate purchase price and recorded as deferred consideration in the Company’s consolidated balance sheet as of December 31, 2014. The remaining $0.5 million is being accreted as interest expense.
The purchase price of $9.5 million has been allocated on a preliminary basis to long-lived intangible assets consisting of developed technology and IPR&D of $4.6 million and $4.6 million, respectively, goodwill of $3.0 million, deferred tax liability of $2.6 million and negative working capital of $0.1 million. Goodwill related to the acquisition is not deductible for tax purposes.
BuyDomains
On September 18, 2014, the Company completed the acquisition of substantially all of the assets of the BuyDomains business of NameMedia, Inc. BuyDomains is a provider of premium domain products. The Company expects this acquisition will allow it to better serve its subscriber demand for higher priced premium domains.

The aggregate purchase price was $44.9 million, of which $41.1 million was paid in cash at the closing. The Company is also obligated to pay additional consideration of $4.5 million on the second anniversary of the acquisition. The net present value of the additional consideration is $3.8 million and is included in the aggregate purchase price and recorded as deferred consideration in the Company’s consolidated balance sheet as of December 31, 2014. The remaining $0.7 million will be accreted as interest expense.
The purchase price of $44.9 million has been allocated on a preliminary basis to intangible assets consisting of developed technology, trade names and domains available for sale of $7.6 million, $1.9 million and $26.9 million, respectively, goodwill of $4.2 million, prepaid expenses and other current assets of $4.0 million and property and equipment of $0.3 million. Goodwill related to the acquisition is deductible for tax purposes.
Arvixe
On October 31, 2014, the Company completed the acquisition of substantially all of the assets of Arvixe, which is a web presence provider. The Company expects this acquisition will allow it to leverage its reach and size to generate better economies of scale.
The aggregate purchase price was $22.0 million, of which $17.6 million was paid in cash at the closing. The Company is also obligated to pay additional consideration of $4.4 million on the twelve-month anniversary of the acquisition.
The purchase price of $22.0 million has been allocated on a preliminary basis to intangible assets consisting of developed technology, trade names and subscriber relationships of $0.1 million, $1.2 million and $8.4 million, respectively and goodwill of $15.4 million, offset by deferred revenue of $3.1 million. Goodwill related to the acquisition is deductible for tax purposes.
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.
For the intangible assets acquired in connection with all acquisitions completed during the year ended December 31, 2014, subscriber relationships has a weighted-useful life of 6.9 years, developed technology have a weighted-useful life of 7.8 years, intellectual property have a weighted-useful life of 14.3 years, trade names have a weighted-useful life of 6.4 years and leasehold interests have a weighted-useful life of 1.4 years.
Pro forma Disclosure
The Company has omitted pro forma disclosures related to its acquisitions completed during 2014 as the pro forma effect of including the results of these acquisitions since the beginning of 2014 would not be materially different than the actual results reported.

Summary of Deferred Consideration Related to Acquisitions
Components of deferred consideration short-term and long-term as of December 31, 2014, consisted of the following (in thousands):


		Short-			Long-
		term			term
Mojoness, Inc. (Acquired in 2012).		$	490		$	1,370
Typepad (Acquired in 2013)			—			2,800
Domain name business (Acquired in 2014)			9,027			—
Webzai (Acquired 2014)			—			2,617
BuyDomains (Acquired in 2014)			—			3,935
Arvixe (Acquired in 2014)			4,400			—

Total		$	13,917		$	10,722

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. 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 2014, the Company’s financial assets or liabilities required to be measured on a recurring basis are accrued earn-out consideration payable in connection with the 2012 acquisition of certain assets of Mojoness, Inc., or Mojo, and the 2014 acquisitions of a domain name business. The Company has classified its liabilities for contingent earn-out consideration related to these acquisitions within Level 3 of the fair value hierarchy because the fair value is determined using significant unobservable inputs, which included probability weighted cash flows. The Company recorded a $0.7 million change in fair value of the earn-out consideration related to Mojo and one of the other 2012 acquisitions as of December 31, 2013 in the Company’s general and administrative expense in the consolidated statement of operations and comprehensive income. During the year ended December 31, 2014, the Company paid $0.2 million related to the earn-out provisions for the Mojo acquisition and recorded $23.0 million related to the 2014 domain name business acquisition of which $14.0 million was paid during the year ended December 31, 2014. The Company recorded a $0.4 million change in fair value of the earn-out consideration related to Mojo and the 2014 domain name business during the year ended December 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		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 December 31, 2014:
	Financial liabilities:
	Contingent earn-out consideration		$	10,887			—		—	$	10,887

	Total financial liabilities		$	10,887			—		—	$	10,887

	The following table summarizes the changes in the financial liabilities measured on a recurring basis using Level 3 inputs as of December 31, 2013 and 2014 (in thousands):


	Financial liabilities measured using Level 3 inputs at January 1, 2013		$	1,383
	Accrual of contingent earn-out related to 2013 acquisition			2,934
	Payment of contingent earn-out related to 2013 acquisition			(2,000	)
	Change in fair value of contingent earn-out			(662	)

	Financial liabilities measured using Level 3 inputs at December 31, 2013		$	1,655
	Accrual of contingent earn-out related to 2014 acquisition			22,987
	Payment of contingent earn-outs related to 2012 and 2014 acquisitions			(14,158	)
	Change in fair value of contingent earn-outs			403

	Financial liabilities measured using Level 3 inputs at December 31, 2014		$	10,887

Property_and_Equipment

Property and Equipment	12 Months Ended
Property and Equipment	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and Equipment	5. Property and Equipment
	Components of property and equipment consisted of the following (in thousands):


		Year Ended
		December 31,
		2013			2014
	Software	$	4,503		$	22,550
	Computers and office equipment		59,201			76,274
	Furniture and fixtures		3,715			4,045
	Leasehold improvements		6,033			7,015
	Construction in process		1,392			2,378

	Property and equipment—at cost		74,844			112,262
	Less accumulated depreciation		(25,129	)		(55,425	)

	Property and equipment—net	$	49,715		$	56,837

	Depreciation expense related to property and equipment for the years ended December 31, 2012, 2013 and 2014, was $6.9 million, $18.6 million, and $31.0 million, respectively.
	During the year ended December 31, 2014, the Company entered into an agreement to lease software licenses for use on certain data center server equipment for a term of thirty-six months.

	As of December 31, 2013 and 2014, the Company’s software shown in the above table included the software assets under a capital lease as follows (in thousands):


		December 31, 2013			December 31, 2014
	Software	$	—		$	11,704
	Less accumulated depreciation		—			(3,901	)

	Assets under capital lease—net	$	—		$	7,803

	At December 31, 2014, the expected future minimum lease payments under the capital lease discussed above were approximately as follows (in thousands):


		Amount
	2015	$	4,112
	2016		4,420

	Total minimum lease payments		8,532
	Less amount representing interest		(437	)

	Present value of minimum lease payments (capital lease obligation)		8,095
	Current portion		3,793

	Long-term portion	$	4,302

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
Goodwill and Other Intangible Assets	Dec. 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 as of December 31, 2013 and 2014 (in thousands):


	Goodwill balance at January 1, 2013	$	936,746
	Goodwill related to 2012 acquisition		844
	Goodwill related to 2013 acquisitions		46,617

	Goodwill balance at December 31, 2013	$	984,207
	Goodwill related to 2013 acquisition		(2,107	)
	Goodwill related to 2014 acquisitions		123,452
	Foreign translation impact		(529	)

	Goodwill balance at December 31, 2014	$	1,105,023

	During the year ended December 31, 2014, the Company completed the purchase accounting related to a 2013 acquisition and allocated an additional $2.1 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 years ended December 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 completed its annual impairment test of goodwill and other indefinite-lived intangible assets and determined that there were no indicators of impairment as of December 31, 2013 and 2014.

	At December 31, 2013, other intangible assets consisted of the following (in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Developed technology	$	183,201		$	36,195	$	147,006		10 years
	Subscriber relationships		346,506			138,297		208,209		13 years
	Trade-names		69,202			20,633		48,569		13 years
	Intellectual property		2,820			464		2,356		8 years

	Total December 31, 2013	$	601,729		$	195,589	$	406,140

	At December 31, 2014, other intangible assets consisted of the following (in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Developed technology	$	202,654		$	57,557	$	145,097		7 years
	Subscriber relationships		364,724			204,950		159,774		5 years
	Trade-names		79,754			31,869		47,885		6 years
	Intellectual property		29,520			2,976		26,544		13 years
	Domain names available for sale		27,019			732		26,287		Indefinite
	Leasehold interests		314			197		117		1 year
	In-process research and development		4,634			—		4,634		—

	Total December 31, 2014	$	708,619		$	298,281	$	410,338

	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 $88.1 million, $105.9 million and $102.7 million, for the years ended December 31, 2012, 2013 and 2014, respectively.
	At December 31, 2014, the expected future amortization of the other intangible assets, excluding indefinite life and in-process research and development intangibles, was approximately as follows (in thousands):


	Year Ending December 31,	Amount
	2015	$	84,000
	2016		68,000
	2017		55,000
	2018		44,000
	2019		36,000
	Thereafter		93,000

	Total	$	380,000

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Investments	7. Investments
	As of December 31, 2013 and 2014, the Company’s carrying value of investments in privately-held companies was $6.5 million and $40.4 million, respectively.

	In 2012, the Company assumed a 50% interest in World Wide Web Hosting, LLC, a provider of web presence solutions, with a fair value of $10.0 million. On October 31, 2013, the Company sold 10% of its ownership interest in World Wide Web Hosting, LLC, reducing its interest to 40% and recorded a $1.5 million note receivable from the buyer and decreased its investment by $1.5 million. The Company evaluated its remaining 40% ownership interest in this privately-held company and recognized a $2.6 million impairment on the remaining investment, which is recorded in equity loss of unconsolidated entities, net of tax, in the Company’s consolidated statement of operations and comprehensive loss.
	On June 6, 2013, the Company made an initial investment of $8.8 million to acquire a 17.5% interest in JDI Backup Ltd., which provides online desktop backup services. The agreement also provided for a call option for the acquisition of additional equity interests which the Company exercised on December 11, 2013 for more detail see Notes 3 and 12 to the consolidated financial statements).
	During the year ended December 31, 2014, the Company made a strategic investment of $15.0 million in Automattic, Inc. (“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 an important partner.
	During the year ended December 31, 2014, the Company also made an aggregate investment of $3.9 million for a joint venture with and 49% ownership interest in WZ UK, Ltd., which is a provider of technology and sales marketing services associated with web builder solutions. The agreement provides for the acquisition of additional equity interests in WZ UK Ltd. at the option of the Company.
	During the year ended December 31, 2014, the Company also made an aggregate investment of $15.2 million to acquire a 40% ownership interest in AppMachineBV (“AppMachine”), which is a developer of software that allows users to build technology applications for smartphones. Under the terms of the investment agreement for AppMachine the Company is obligated to purchase the remaining 60% of AppMachine in three tranches of 20% within specified periods if AppMachine achieves a specified minimum revenue threshold within a designated timeframe. The consideration for each of the three tranches is calculated as the product of AppMachine’s revenue, as defined in the investment agreement, for the trailing twelve month period prior to the applicable determination date times a specified multiple based upon year over year revenue growth multiplied by 20%.
	Investments in which the Company’s interest is less than 20% and which are not classified as available-for-sale securities are carried at the lower of cost or net realizable value unless it is determined that the Company exercises significant influence over the investee company, in which case the equity method of accounting is used. For those investments in which the Company’s voting interest is between 20% and 50%, the equity method of accounting is used. Under this method, the investment balance, originally recorded at cost, is adjusted to recognize the Company’s share of net earnings or losses of the investee company, as they occur, limited to the extent of the Company’s investment in, advances to and commitments for the investee. These adjustments are reflected in equity loss of unconsolidated entities, net of tax. The Company recognized net income (loss) of $0.0 million, $0.5 million and $(0.1) million for the years ended December 31, 2012, 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 December 31, 2014, the Company was not obligated to fund any follow-on investments in these investee companies, other than AppMachine as described above.
	As of December 31, 2013 and December 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	12 Months Ended
Notes Payable	Dec. 31, 2014
Debt Disclosure [Abstract]
Notes Payable	8. Notes Payable
	At December 31, 2013 and 2014 notes payable consisted of a first lien term loan facility with a principal amount outstanding of $1,047.4 million and $1,036.9 million, respectively, which bore interest at a LIBOR-based rate of 5.00%. The current portion of the first lien term loan as of December 31 was $10.5 million in both periods. In addition, as of December 31, 2014, notes payable included a bank revolver loan (“Revolver loan”) of $50.0 million, which bore interest at a LIBOR-based rate of 7.75%. The amounts outstanding under the revolving credit facility as of December 31,2013 and December 31, 2014 of $0.0 million and $50.0 million respectively, were classified as current notes payable on the consolidated balance sheets.
	January 2012 to November 8, 2012
	On April 20, 2012, the Company entered into a new six-year term loan (the “April 2012 Term Loan”) for $535.0 million. At that date the Company had an outstanding term loan balance of $349.1 million which was repaid in full. On July 13, 2012, the Company entered into an amended and restated financing agreement (the “July Financing Amendment”) for an additional $135.0 million of term loans, a second lien credit agreement (the “Second Lien Agreement”) for $140.0 million and an increase in the Revolver loan facility to $75.0 million. The Company concluded that the April 2012 Term Loan and the July Financing Amendment were debt modifications in accordance with ASC 470-50, Debt—Modifications and Extinguishments (“ASC 470-50”), and as such all third-party costs incurred to modify the debt of $1.3 million were expensed. Additional financing costs of $22.0 million were incurred and were recorded as deferred financing costs with an amortization period of six years.
	The Company bore interest on the LIBOR and reference-based loans of 7.75% and 8.50%, respectively and on the LIBOR based second lien term loan of 11.00%.
	November 9, 2012—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 loan facility in aggregate principal amount not to exceed $85.0 million 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 First Lien for an additional $90.0 million of incremental first lien term loan (“August 2013 First Lien”) before refinancing its debt in November 2013, as described below.
	The Company concluded that the November 2012 Financing Amendment was a debt extinguishment in accordance with ASC 470-50, which requires the term loans be recorded at fair value. At the time of the November 2012 Financing Amendment, the April 2012 Term Loan, as modified by the July Financing Amendment, and the Second Lien facility had balances which equaled their fair value of $668.3 million and $140.0 million, respectively, and as such all expenses paid to and on behalf of the lender were expensed. Third-party financing related costs of $1.5 million were incurred and recorded as deferred financing costs with an amortization period based on the remaining terms of the loans. The Company concluded that the August 2013 First Lien was a debt modification in accordance with ASC 470-50, and as such all third-party costs incurred to modify the debt were expensed and additional financing costs of $1.3 million were incurred and recorded as deferred financing costs with an amortization period based on the remaining term of the loan.
	The Company accrued interest on the LIBOR based November 2012 First Lien and November 2012 Second Lien of 7.75% and 10.25%, respectively. In addition the Company accrued interest on LIBOR and reference-based Revolver loans of 7.75% and 8.50%, respectively.
	During the year ended December 31, 2012 and the nine months ended September 30, 2013, the Company made mandatory repayments on the term loan facilities in an aggregate amount of $2.7 million and $6.2 million, respectively. For the years ended December 31, 2012 and 2013, amortization of $4.5 million and $0.3 million, respectively, was included in interest expense in the consolidated statements of operations and comprehensive loss related to deferred financing costs from the November 2012 Financing Amendment and the August 2013 First Lien.

	In connection with the August 2013 First Lien, the interest rates for the term loan and the November 2012 Revolver remained the same as under the November 2012 First Lien.
	Debt Refinancing—November 25, 2013
	In November 2013, following its IPO, 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 its Revolver capacity by $40.0 million to $125.0 million, none of which was drawn down at the time of the increase. The mandatory repayment of principal on the November 2013 First Lien was increased to approximately $2.6 million at the end of each quarter. During the years ended December 31, 2013 and 2014, the Company made aggregate mandatory repayments on the November 2013 First Lien of $2.6 million and $10.5 million, respectively. As of December 31, 2014 the Company had $50.0 million outstanding under the Revolver. 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. The Company uses the Revolver to assist with cash payments for acquisitions and minority investments.
	The Company concluded that the November 2013 First Lien was a debt extinguishment in accordance with ASC 470-50, which requires the term loans be recorded at fair value. The November 2013 First Lien modified the August 2013 First Lien and was recorded at face value which equaled fair value, and as such, all expenses paid to and on behalf of the lender were expensed. Third-party financing related costs of $0.4 million were incurred and recorded as deferred financing costs with an amortization period based on the remaining term of the loan.
	The loans automatically bear interest at the bank’s reference rate unless the Company gives notice to opt for LIBOR-based interest rate loans. 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. The interest rate for an Alternate Base Rate (“ABR”) Revolver loan is 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 is 6.25% per annum plus the greater of the LIBOR rate or 1.50%. There is also 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.
	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.
	At December 31, 2013 and 2014, notes payable consisted of the following (in thousands):


		December 31,			December 31,
		2013			2014
	LIBOR First Lien term loan	$	1,047,375		$	1,036,875
	LIBOR Revolver loan		—			50,000

		$	1,047,375		$	1,086,875


	The maturity of the notes payable at December 31, 2014 is as follows (in thousands):


		Revolver			First Lien			Total
		Revolver			Term Loan			Total
	2015	$	50,000		$	10,500		$	60,500
	2016		—			10,500			10,500
	2017		—			10,500			10,500
	2018		—			10,500			10,500
	2019		—			994,875			994,875

	Total	$	50,000		$	1,036,875		$	1,086,875

	Interest
	The Company recorded $126.2 million, $98.5 million and $57.4 million in interest expense for the years ended December 31, 2012, 2013 and 2014, respectively.
	The following table provides a summary of loan interest rates incurred and interest expense for the years ended December 31, 2012, 2013 and 2014 (in thousands):


		Year Ended			Year Ended			Year Ended
		December 31, 2012			December 31, 2013			December 31, 2014
	Interest rate—LIBOR		6.25%-11.00	%		5.00%-10.25	%		5.00%-7.75	%
	Interest rate—reference		8.5	%		8.5	%		8.5	%
	Non-refundable fee—unused facility		0.5	%		0.5	%		0.5	%
	Interest expense and service fees	$	52,922		$	85,327		$	56,247
	Amortization of deferred financing fees	$	4,466		$	260		$	83
	Amortization of net present value of deferred consideration	$	1,093		$	1,590		$	183
	Interest recorded on extinguishment of term loans	$	67,611		$	10,833		$	—
	Accretion of present value of deferred bonus payments	$	73		$	111		$	1
	Interest expense for capital lease obligations	$	—		$	—		$	503
	Interest expense for deferred consideration promissory note	$	—		$	267		$	280
	Other interest expense	$	—		$	61		$	117

	Total interest expense	$	126,165		$	98,449		$	57,414

	Debt Covenants
	The November 2013 First Lien requires that the Company maintain one financial covenant, based on EBITDA coverage.
There are also restrictions on the payment of dividends, as well as reporting requirements. Additionally, the First Lien term loan facility contains certain negative covenants and defines certain events of default, including a change of control and non-payment of principal and interest, among others, which could result in amounts becoming payable prior to their maturity dates. The Company was in compliance with all covenants at December 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 certain restricted cash balances and bank deposits permitted under the terms of the November 2013 First Lien.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Dec. 31, 2014
Equity [Abstract]
Stockholders' Equity	9. Stockholders’ Equity
	Preferred Stock
	The Company has 5,000,000 shares of authorized preferred stock, par value $0.0001. There were no preferred shares issued or outstanding as of December 31, 2013 and 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.
	Series E Preferred Stock
	Prior to the Company’s IPO, the Company had 150,000 authorized shares of series E preferred stock, par value $0.01 (“Series E”).
	Dividends
	Holders of the Series E were entitled to receive dividends, when, as and if dividends were declared by the board of the Company and would have accumulated, whether or not dividends were declared. The Series E were issued on December 22, 2011 and accrued a cumulative dividend at the rate of 12% per annum, based on a 360-day year consisting of twelve 30-day months, compounded on the last day of each calendar quarter beginning December 31, 2012.
	Redemption
	The Series E was redeemable in whole or in part by the Company at a price equal to the liquidation preference amount of $1,000 per share, plus accrued dividend amounts at the date of redemption. On April 20, 2012, in connection with the financing from the April 2012 Term Loan, the Company redeemed all of the outstanding shares of Series E for $150.0 million plus accrued dividends of $6.0 million.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	10. 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.
	2012 Restricted Stock Awards
	Unless otherwise determined by the Company’s board of directors, stock-based awards granted prior to the IPO generally vest over a four-year period or had vesting that was dependent on the achievement of specified performance targets. The fair value of these stock-based awards was determined as of the grant date of each award using an option-pricing model and assuming no pre-vesting forfeiture of the awards.

	Given the absence of an active trading market for the Company’s common stock prior to the completion of its IPO, the fair value of the equity interests underlying stock-based awards was determined by the Company’s management. In doing so, valuation analyses were prepared in accordance with the guidelines outlined in the American Institute of Certified Public Accountants Practice Aid, Valuation of Privately-Held-Company Equity Securities Issued as Compensation, and were used by the Company’s management to assist in determining the fair value of the equity interests underlying its stock-based awards. Each equity interest was granted with a “threshold amount” meaning that the recipient of an equity security only participated to the extent that the Company appreciated in value from and after the date of grant of the equity interest (with the value of the entity as of the grant date being the “threshold amount”). The assumptions used in the valuation models were based on future expectations combined with management’s judgment. In the absence of a public trading market, the Company’s management exercised significant judgment and considered numerous objective and subjective factors to determine the fair value of the stock-based awards as of the date of each award. These factors included:

		•		contemporaneous or retrospective valuations for the Company and its securities;

		•		the rights, preferences, and privileges of the stock-based awards relative to each other as well as to the existing shareholders;

		•		lack of marketability of the Company’s equity securities;

		•		historical operating and financial performance;

		•		the Company’s stage of development;

		•		current business conditions and projections;

		•		hiring of key personnel and the experience of the Company’s management team;

		•		risks inherent to the development of the Company’s products and services and delivery of its solutions;

		•		trends and developments in the Company’s industry;

		•		the threshold amount for the stock-based awards and the values at which the stock-based awards would vest;

		•		the market performance of comparable publicly traded companies;

		•		likelihood of achieving a liquidity event, such as an IPO or a merger or acquisition of the Company given prevailing market conditions; and

		•		U.S. and global economic and capital market conditions.
	The Company completed its IPO in October 2013, and determined that the performance targets associated with the performance-based stock awards were met in full and consequently the performance-based stock awards would be fully vested. However, effective prior to the first day of public trading of the Company’s common stock, the Company accelerated the vesting of 2,167,870 shares of common stock issued in respect of the time-based stock awards and modified the vesting of 3,574,637 shares issued in respect of the performance-based stock awards so that 2,580,271 shares of common stock were fully vested and 994,366 shares of common stock will follow the same vesting schedule as the time-based stock awards that were granted on the same date as such performance-based stock awards.
	The Company recognized stock-based compensation expense of approximately $1.4 million for the shares of common stock issued in respect of the performance-based stock awards that vested at closing of its IPO and $2.4 million for the acceleration of vesting for a portion of the shares of common stock issued in respect of previously unvested time-based stock awards.
	Total stock-based compensation expense recognized for the time-based vesting stock awards was $2.3 million and $6.5 million for the years ended December 31, 2012 and 2013, respectively. No compensation expense was recognized for the year ended December 31, 2012 for the performance-based stock awards, since in the opinion of management, it was not then probable that any of the performance targets necessary for the performance-based stock awards to vest would have been met prior to their expiration. Total stock-based compensation expense recognized for the performance-based stock awards was $1.4 million for the year ended December 31, 2013, since the performance targets necessary for the performance-based stock awards were met prior to their expiration. The Company will recognize a recovery of expense if the actual forfeiture rate for the time-based stock awards is higher than estimated.
	The following tables present a summary of the 2012 restricted stock awards activity for the year ended December 31, 2014 for restricted stock awards that were granted prior to the Company’s IPO:


			2012 Restricted Stock Awards
	Non-Vested at December 31, 2013			1,456,666
	Forfeitures			(50,536	)
	Vested			(647,008	)

	Non-Vested at December 31, 2014			759,122

	In connection with the IPO the Company granted restricted stock units under the prior equity plan. The following table provides a summary of the restricted stock units that were granted in connection with the IPO under this plan and the non-vested balance as of December 31, 2014:


			Restricted Stock Units				Weighted
							Average
							Grant Date
							Fair Value
	Non-vested at December 31, 2013			288,014			$	12
	Vested and unissued			(132,920	)		$	12

	Non-vested at December 31, 2014			155,094			$	12

	2013 Stock Incentive Plan
	The 2013 Stock Incentive Plan (the “2013 Plan”) of the Company became effective upon the closing of our IPO. 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. Under the 2013 Plan, the Company may issue up to 18,000,000 shares of the Company’s common stock. At December 31, 2014, 11,161,682 shares were available for grant under the 2013 Plan.
	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. Unless otherwise approved by the Company’s board of directors, 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 weighted-average assumptions used to compute stock-based compensation expense for awards granted under the 2013 Stock Incentive Plan during the years ended December 31, 2013 and 2014 are as follows:


			2013				2014
Risk-free interest rate			1.9	%			2.1	%
Expected volatility			60	%			58.3	%
Expected life (in years)			6.25				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 a 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.
The following table provides a summary of the Company’s stock options as of December 31, 2014 and the stock option activity for all stock options granted under the 2013 Plan during the year ended December 31, 2014 (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			129,013			$	14.8
Exercised			(11,390	)		$	12
Canceled			(329,335	)		$	12.03

Outstanding at December 31, 2014			5,407,959			$	12.07			8.8	$	34,487

Exercisable at December 31, 2014			1,556,275			$	12			8.8	$	10,007

Expected to vest after December 31, 2014(1)			3,795,293			$	12.09			8.8	$	24,064

Exercisable as of December 31, 2014 and expected to vest thereafter(2)			5,351,568			$	12.06			8.8	$	34,071


-1	This represents the number of unvested options outstanding as of December 31, 2014 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate.
-2	This represents the number of vested options as of December 31, 2014 plus the number of unvested options outstanding as of December 31, 2014 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate.
-3	The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on December 31, 2014 of $18.43 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.
Unless otherwise determined by the Company’s board of directors, restricted stock awards granted under the 2013 Plan generally vest annually over a four-year period. The following table provides a summary of the Company’s restricted stock award activity for the 2013 Plan during the year ended December 31, 2014:


		Restricted Stock Awards				Weighted
						Average
						Grant Date
						Fair Value
Non-vested at December 31, 2013			714,928			$	12
Granted			313,840			$	13.11
Vested			(219,812	)		$	12.28
Canceled			(113,644	)		$	12.08

Non-vested at December 31, 2014			695,312			$	12.4


Unless otherwise determined by the Company’s board of directors, restricted stock units granted under the 2013 Plan generally vest monthly over a four-year period. The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the year ended December 31, 2014:


		Restricted Stock Units				Weighted
						Average
						Grant Date
						Fair Value
Non-vested at December 31, 2013			461,556			$	12
Vested and unissued			(120,395	)		$	12

Non-vested at December 31, 2014			341,161			$	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 in connection with or subsequent to the IPO (in thousands):


		2012				2013			2014
Cost of revenue		$	26			$	126		$	547
Sales and marketing			266				459			1,585
Engineering and development			133				267			883
General and administrative			1,883				9,911			13,028

Total operating expense		$	2,308			$	10,763		$	16,043

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 December 31, 2014 (in thousands):


		Unrecognized Compensation				Weighted
		Expense at December 31, 2014				Average
						Period To Be
						Recognized
2012 Restricted Stock Awards		$	653				1.3 years
2012 Restricted Stock Unit Awards		$	1,820				1.2 years
2013 Plan Stock Option Awards		$	25,963				2.8 years
2013 Plan Restricted Stock Awards		$	7,968				2.7 years
2013 Plan Restricted Stock Unit Awards		$	4,068				2.8 years

Dividend

Dividend	12 Months Ended
Dividend	Dec. 31, 2014
Text Block [Abstract]
Dividend	11. Dividend
Dividend	On November 9, 2012, the Company paid a dividend in the aggregate amount of $300.0 million to shareholders and non-vested shareholders of the Company. The Company paid a $289.5 million dividend to existing shareholders of the Company and $10.5 million to the non-vested shareholders of the Company. At the time the dividend was paid, a special authorization was made by the board of directors of the Company to allow the non-vested shareholders to participate since at that date the non-vested shareholders were not entitled to receive a dividend. The non-vested shareholders’ participation was subject to certain aggregate payments first being made to the existing shareholders of the Company which had not yet been met. For accounting purposes the dividend paid to the non-vested shareholders is treated as a modification of the original non-vested share award resulting in the measurement of compensation expense equal to the amount of the dividend. Certain of the non-vested shareholders were required to enter into clawback arrangements whereby if the non-vested shareholder’s employment with the Company terminated under certain defined conditions prior to the non-vested shareholder’s vesting in the non-vested shares, all or a portion of the dividend would be required to be repaid to the Company. Compensation expense related to the dividend amount subject to clawback arrangements with a future service requirement were being recognized over the future service period. Generally, the amount of the dividend subject to clawback reduced over time as the non-vested shares vest. For the dividend paid to the non-vested shareholders, $9.8 million was recorded in general and administrative expense in the year ended December 31, 2012 since this dividend amount was not attributable to a future service requirement by the class non-vested shareholders. The Company recorded the remaining $0.7 million of compensation expense during 2013.

Redeemable_NonControlling_Inte

Redeemable Non-Controlling Interest	12 Months Ended
Redeemable Non-Controlling Interest	Dec. 31, 2014
Noncontrolling Interest [Abstract]
Redeemable Non-Controlling Interest	12. Redeemable Non-Controlling Interest
	In connection with a 2013 equity investment in JDI Backup Ltd., where the Company acquired a controlling interest, the agreement provided for a put option for the then 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 a redeemable non-controlling interest and not recorded in permanent equity, and is presented as mezzanine redeemable non-controlling interest on the consolidated balance sheet, and is subject to the guidance of the Securities and Exchange Commission (“SEC”) under ASC 480-10-S99, Accounting for Redeemable Equity Securities.
	The difference between the $20.8 million initial fair value of the redeemable non-controlling interest and the value 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 18-month anniversary of the acquisition date. Adjustments to the carrying amount of the redeemable non-controlling interest are charged to additional paid-in capital. 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.
	During the year ended December 31, 2014, the Company paid $4.2 million to increase its investment in the privately-held company and entered into an amendment to the put option with the NCI shareholders. During the year ended December 31, 2014, due to the Company’s assessment of financial performance and forecasted profitability, the Company changed its estimate of the expected exercise amount of the put option. The change in estimate resulted in the fair value of the put option increasing to $30.5 million. On January 13, 2015, the Company entered into an agreement to acquire the remaining interests owned by the NCI shareholders for $30.5 million, which is payable in three equal installments on January 13, 2015, June 15, 2015 and September 15, 2015.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes
	The Company accounts for income taxes in accordance with authoritative guidance, which requires the use of the asset and liability method. Under this method, deferred income tax assets and liabilities are determined based upon the difference between the consolidated financial statement carrying amounts and the tax basis of assets and liabilities and are measured using the enacted tax rate expected to apply in the years in which the differences are expected to be reversed.
	The domestic and foreign components of loss before income taxes for the periods presented (in thousands):


			Year Ended
			December 31,				December 31,			December 31,
			2012				2013			2014
	United States		$	(216,478	)		$	(158,481	)	$	(17,002	)
	Foreign			—				(2,894	)		(27,603	)

	Total loss before income taxes		$	(216,478	)		$	(161,375	)	$	(44,605	)


	The components of the provision (benefit) for income taxes consisted of the following (in thousands):


			Year Ended
			December 31,				December 31,			December 31,
			2012				2013			2014
	Current:
	U.S. federal		$	—			$	—		$	781
	State			407				267			183
	Foreign			—				914			1,582

	Total current provision			407				1,181			2,546

	Deferred:
	U.S. federal			(64,295	)			(50,007	)		(581	)
	State			(13,315	)			(8,852	)		(3,983	)
	Foreign			—				(1,590	)		(5,310	)
	Change in valuation allowance			—				55,672			13,514

	Total deferred provision			(77,610	)			(4,777	)		3,640

	Total expense (benefit)		$	(77,203	)		$	(3,596	)	$	6,186

	During 2013, the Company’s net deferred tax liability was eliminated due mainly to a reduction in a deferred liability related to definite-lived intangibles and for current period losses resulting in an increase to offsetting deferred tax assets. On December 22, 2011, the Company was acquired by Holdings. The Company recorded its intangible assets at fair value as a result of the acquisition. For U.S. GAAP purposes the definite-lived intangible assets have accelerated amortization, while for tax purposes the intangible assets maintained their historical basis and lives. As such, a deferred tax liability was established through purchase accounting. The reversal of the 2012 deferred tax liability in 2013 resulted in a deferred tax benefit in 2013. The Company established a valuation allowance on substantially all of their deferred tax assets during the year ended December 31, 2013. The benefit had been reduced after the establishment of the valuation allowance by the deferred tax expense associated with the tax amortization of assets that have an indefinite life for U.S. GAAP purposes. The state income tax is primarily driven by states who tax the Company based on a gross margin tax. The Company also has subsidiaries in Brazil and India that are generating taxable income and are driving the current foreign tax.
	The following table presents a reconciliation of the statutory federal rate, and the Company’s effective tax rate, for the periods presented:


			Year Ended
			December 31,				December 31,			December 31,
			2012				2013			2014
	U.S. federal taxes at statutory rate			34	%			34	%		34	%
	State income taxes, net of federal benefit			3.6				3.2			5.9
	Nondeductible stock-based compensation			(0.4	)			(0.7	)		(2.5	)
	Nondeductible transaction costs			(0.6	)			(1.1	)		(1.0	)
	Other foreign permanent differences			—				—			(2.5	)
	Credits			—				—			0.6
	Foreign rate differential			—				(0.2	)		(11.7	)
	Change in valuation allowance—U.S.			—				(34.0	)		(23.2	)
	Change in valuation allowance—foreign			—				(0.5	)		(7.0	)
	Rate change			0.4				0.4			(1.1	)
	Prior year true-up stock-based compensation—U.S.			—				—			(2.0	)
	Other			(1.3	)			1.1			(3.4	)

	Total			35.7	%			2.2	%		(13.9	)%


	The provision (benefit) for income taxes shown on the consolidated statements of operations differs from amounts that would result from applying the statutory tax rates to income before taxes primarily because of state income taxes, the impact of changes in state apportionment, jurisdiction mix of earnings, nondeductible expenses, as well as the application of valuation allowances against U.S. and foreign assets.
	The significant components of the Company’s deferred income tax assets and liabilities as of December 31, 2013 and December 31, 2014 are as follows (in thousands):


		2013				2014
Deferred income tax assets:
Net operating loss carry forward		$	87,784			$	70,070
Credit carryforward			—				724
Other			1,598				910
Deferred compensation			556				571
Deferred revenue			11,622				18,385
Other reserves			5,848				4,200
Stock-based compensation			2,788				5,360

Total deferred income tax assets			110,196				100,220

Deferred income tax liabilities:
Purchased intangible assets			(56,848	)			(32,315	)
Goodwill			(10,736	)			(17,404	)
Property and equipment			(16	)			(2,852	)

Total deferred income tax liabilities			(67,600	)			(52,571	)
Valuation allowance			(55,786	)			(69,271	)

Net deferred income tax assets/(liabilities)		$	(13,190	)		$	(21,622	)

The Company files income tax returns in the United States for federal income taxes and in various state jurisdictions. The Company also files in several foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities throughout the world. Since the Company is in a loss carry-forward position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a loss carry-forward is available. The Company is subject to tax examinations in Brazil, India and Singapore for 2013 and the United Kingdom from 2010 through 2013.
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 December 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 12 months.
The Company regularly assesses its ability to realize its deferred tax assets. Assessing the realization of deferred tax assets requires significant management judgment. In determining whether its deferred tax assets are more likely than not realizable, the Company evaluated all available positive and negative evidence, and weighted the evidence based on its objectivity. Evidence the Company considered included:

	•		NOLs incurred from the Company’s inception to December 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 December 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 $69.3 million as of December 31, 2014. The provision for income taxes results from a combination of the activities of the Company’s domestic and foreign subsidiaries.
For the years ended December 31, 2012, 2013 and 2014, the Company has recognized a tax expense (benefit) of $(77.2) million, $(3.6) million and $6.2 million, respectively, in the consolidated statements of operations and comprehensive loss. The income tax expense for the year ended December 31, 2014 is primarily attributable to a provision for foreign taxes of $1.8 million, U.S. alternative minimum taxes of $0.5 million and $0.2 million of state taxes. The remaining balance of $3.6 million for the year ended December 31, 2014 is primarily attributable to an increase in U.S. deferred tax liabilities due to the differences in the accounting treatment of goodwill under U.S. GAAP and the tax accounting treatment for goodwill of $5.8 million of U.S. federal and state deferred taxes, partially offset by a foreign deferred benefit of $2.2 million related to the reductions of deferred liabilities created in purchase accounting.
As of December 31, 2014, the Company had NOL carry-forwards available to offset future U.S. federal taxable income of approximately $158.9 million and future state taxable income by approximately $158.5 million. These NOL carry-forwards expire on various dates through 2033. The Company has $0.4 million of U.S. capital loss carry-forwards which will expire in 2018. $0.8 million of the U.S. federal NOL carry-forward and $0.2 million of the state NOL carry-forwards are from excess stock-based compensation, for which the benefit will be recorded to additional paid-in capital when recognized. As of December 31, 2014, the Company had NOL carry-forwards in foreign jurisdictions available to offset future foreign taxable income by approximately $37.2 million. India has loss carry-forwards totaling $2.7 million that expire in 2021. The Company also has loss carry-forwards in the United Kingdom of $34.3 million which carry-on indefinitely.
Utilization of the NOL carry-forwards may be subject to an annual limitation due to the ownership percentage change limitations under Section 382 of the Internal Revenue Code (“Section 382 limitation”). Ownership changes can limit the amount of net operating loss and other tax attributes that a company can use each year to offset future taxable income and taxes payable. In connection with a change in control in 2011 the Company was subject to Section 382 annual limitations of $77.1 million against the balance of NOL carry-forwards generated prior to the change in control 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 has completed an analysis of changes in its ownership from 2011, through its IPO, to December 31, 2013. The Company concluded that there was not a Section 382 ownership change during this period and therefore any NOLs generated through December 31, 2013, are not subject to any new Section 382 annual limitations on NOL carry-forwards. On November 20, 2014, the Company completed a follow-on offering of 13,000,000 shares of common stock. The underwriters also exercised their overallotment option to purchase an additional 1,950,000 shares of common stock from the selling stockholders. The Company has performed an analysis of the impact of this offering and determined that no Section 382 change in ownership has occurred. As a result, all unused NOL carry-forwards at December 31, 2014 are available for future use to offset taxable income.
Permanent Reinvestment of Foreign Earnings
The Company considers the operating earnings of its non-United States subsidiaries to be indefinitely invested outside the United States under ASC 740-30 based on estimates that future and domestic cash generation will be sufficient to meet future domestic cash needs. The Company has three cumulatively profitable foreign jurisdictions, Brazil, India and U.A.E., which have generated approximately $8.2 million of profits outside of the United States. If the Company were to repatriate these cumulative profits, there would be sufficient United States net operating losses to offset the tax impact of the repatriation. Should the Company decide to repatriate foreign earnings the Company would have to adjust the income tax provision in the period it determined that the earnings will no longer be indefinitely vested outside the United States. A provision has not been made for U.S. or additional non-U.S. taxes on the $8.2 million of undistributed earnings because we plan to keep these amounts permanently reinvested overseas except for instances where we can remit such earnings to the U.S. without an associated net tax cost. However, to the extent such foreign earnings were remitted in the future a deferred tax liability of $1.2 million would be recorded.

Severance_and_Other_Exit_Costs

Severance and Other Exit Costs	12 Months Ended
Severance and Other Exit Costs	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Severance and Other Exit Costs	14. Severance and Other Exit Costs
	In connection with acquisitions, the Company may evaluate its data center, sales and marketing, support and engineering operations and the general and administrative function in an effort to eliminate redundant costs. As a result, the Company may incur charges for employee severance, exiting facilities and restructuring data center commitments and other related costs. During the year ended December 31, 2014, the Company implemented plans to further integrate and consolidate its data center, support and engineering operations, resulting in severance and facility exit costs. The severance charges are associated with eliminating approximately 90 positions across primarily support, engineering operations and sales and marketing. The Company incurred severance costs of $2.3 million in the year ended December 31, 2014 related to these restructuring activities. The employee-related charges associated with these restructurings were completed during the year ended December 31, 2014. The Company has paid $1.7 million of severance costs during the year ended December 31, 2014 and accrued a severance liability of $0.6 million as of December 31, 2014 related to these severance costs.
	The Company has incurred facility costs associated with closing offices in Redwood City, California and Englewood, Colorado. At the time of closing these offices, the Company had remaining lease obligations of approximately $3.0 million for these vacated facilities through March 31, 2018. The Company recorded a facilities charge for these future lease payments, less expected sublease income, of $2.1 million during the year ended December 31, 2014. Of the $2.1 million facilities charge, $1.8 million is included in cost of revenue and $0.3 million is included in general and administrative expense in the Company’s consolidated statement of operations and comprehensive loss.
	The following table provides a summary of the activity for the year ended December 31, 2014 related to the Company’s severance and other exit costs accrual (in thousands):


		Employee Severance			Facilities			Total
	Balance at December 31, 2013	$	—		$	—		$	—
	Severance and other exit cost charges		2,320			2,140			4,460
	Cash paid		(1,726	)		(285	)		(2,011	)

	Balance at December 31, 2014	$	594		$	1,855		$	2,449

	The following table presents severance charges recorded in the consolidated statement of operations and comprehensive loss for the periods presented (in thousands):


		Year Ended
		December 31, 2014
	Cost of revenue	$	517
	Sales and marketing		301
	Engineering and development		960
	General and administrative		542

	Total severance charges	$	2,320

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies
	Operating Leases
	The Company has operating lease commitments for certain facilities and equipment that expire on various dates through 2026. The following table outlines future minimum annual rental payments under these leases at December 31, 2014 (in thousands):


	Year Ending December 31,	Amount
	2015	$	8,451
	2016		8,378
	2017		7,181
	2018		5,093
	2019		5,000
	Thereafter		19,949

	Total minimum lease payments	$	54,052

	Total rent expense incurred under non-cancellable operating leases for the years ended December 31, 2012, 2013 and 2014, were $2.7 million, $8.9 million and $9.8 million, respectively.
	Contingencies
	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.

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Employee Benefit Plans	16. Employee Benefit Plans
	The Company has a defined contribution plan established under Section 401(k) of the Internal Revenue Code (the “401(k) Plan”), which covers substantially all employees. Employees are eligible to participate in the 401(k) Plan beginning on the first day of the month following commencement of their employment. The 401(k) Plan includes a salary deferral arrangement pursuant to which participants may elect to reduce their current compensation by up to the statutorily prescribed limit, equal to $17,500 in 2014, and have the amount of the reduction contributed to the 401(k) Plan. Beginning January 1, 2013, the Company matched 100% of each participant’s annual contribution to the 401(k) plan up to 3% of the participant’s salary and then 50% of each participant’s contribution up to 2% of each participant’s salary. The match immediately vests 100%. Matching contributions by the Company to the 401(k) Plan related to the 2013 and 2014 plan years were approximately $1.2 million and $2.2 million, respectively. The Company did not make matching contributions to the 401(k) Plan in the year ended December 31, 2012.
	In connection with an acquisition in 2011, the Company assumed a defined contribution plan established under Section 401(k) of the Internal Revenue Code (the “Dotster 401(k) Plan”), in which employees were eligible to participate upon the date of hire. Under the Dotster 401(k) Plan, the Company matched 100% of each participant’s annual contribution to the Dotster 401(k) Plan up to 3% of each participant’s salary and then 50% of each participant’s annual contribution to the Dotster 401(k) Plan up to 2% of each participant’s salary. The match immediately vested 100%. Matching contributions by the Company related to the 2012 and 2013 plan years in the amounts of $0.2 million and $0.4 million, respectively, were made to the Dotster 401(k) Plan. The Dotster 401(k) plan merged with the Company’s 401(k) plan during the year ended December 31, 2014.

	In connection with the HostGator acquisition in 2012, the Company assumed a defined contribution plan established under Section 401(k) of the Internal Revenue Code (the “HostGator 401(k) Plan”), in which employees were eligible to participate on the date of hire. Under the HostGator 401(k) Plan, the Company matched 25% of each participant’s annual contribution up to 4% of each participant’s salary, vesting 100% after three years of service. Matching contributions by the Company related to the 2012 and 2013 plan years in the amounts of $0.1 million for each year, were made to the HostGator 401(k) Plan. The HostGator 401(k) plan merged with the Company’s 401(k) plan during the year ended December 31, 2014.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	17. Related Party Transactions
	The Company has various agreements in place with related parties. Below are details of related party transactions that occurred during the years ended December 31, 2012, 2013 and 2014.
	The Company has contracts with entities for outsourced services. 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.
	The following table presents the amount of related party transactions recorded in the consolidated statements of operations and comprehensive loss and amounts included in accounts payable and accrued expense in the consolidated balance sheets relating to services under these agreements for the periods indicated (in thousands):


		2012		2013		2014
	Cost of revenue	$	4,600	$	5,200	$	7,400
	Sales and marketing		300		300		600
	Engineering and development		1,000		900		1,700
	General and administrative		900		900		700

	Total related party transaction expense	$	6,800	$	7,300	$	10,400

	Amount included in accounts payable or accrued expense	$	200	$	400	$	1,300

	The Company also has agreements with an entity that provides a multi-layered 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. During the year ended December 31, 2014, the Company’s principal agreement with this entity was amended which resulted in the accounting treatment of expenses being recorded against revenue.
	The following table presents the amount of related party transactions recorded in the consolidated statements of operations and comprehensive loss and amounts included in accounts payable and accrued expense in the consolidated balance sheets relating to services under these agreements for the periods indicated (in thousands):


		2012		2013		2014
	Revenue (contra)	$	—	$	—	$	600
	Cost of revenue	$	2,200	$	3,000	$	4,800

	Total related party transaction expense	$	2,200	$	3,000	$	5,400

	Amount included in accounts payable or accrued expense	$	400	$	700	$	900

Subsequent_Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events
	With respect to the consolidated financial statements as of and for the year ended December 31, 2014, the Company performed an evaluation of subsequent events through the date of this filing.

	On January 13, 2015, the Company entered into an agreement to increase its investment in JDI Backup Ltd. to 100%. See Notes 3 and 12.

Information_about_Geographic_A

Information about Geographic Areas	12 Months Ended
Information about Geographic Areas	Dec. 31, 2014
Text Block [Abstract]
Information about Geographic Areas	19. Information about Geographic Areas
	It is impracticable for the Company to provide revenue information by geography for December 31, 2012, 2013 and 2014 due to unavailability of geographic information for some subscribers acquired as part of previous acquisitions as well as limitations in certain accounting systems that are currently in use. The following table presents the amount of tangible long-lived assets by geographic area (in thousands):


		2013		2014
	United States	$	49,269	$	55,191
	International		446		1,646

	Total	$	49,715	$	56,837

Quarterly_Financial_Data_unaud

Quarterly Financial Data (unaudited)	12 Months Ended
Quarterly Financial Data (unaudited)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (unaudited)	20. Quarterly Financial Data (unaudited)
	The following table presents the Company’s unaudited quarterly financial data (in thousands):


		For the three months ended:
		March 31,			June 30,			Sept. 30,			Dec. 31,			March 31,			June 30,			Sept. 30,			Dec. 31,
		2013			2013			2013			2013			2014			2014			2014			2014
	Revenue	$	122,741		$	128,222		$	132,913		$	136,420		$	145,750		$	151,992		$	160,167		$	171,936
	Gross profit	$	35,533		$	40,250		$	45,748		$	48,862		$	56,559		$	59,381		$	62,751		$	69,666
	Income (loss) from operations	$	(12,234	)	$	(10,880	)	$	(4,335	)	$	(35,599	)	$	(5,499	)	$	(1,085	)	$	5,254		$	13,808
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(21,728	)	$	(42,958	)	$	(27,027	)	$	(67,474	)	$	(19,285	)	$	(13,448	)	$	(7,898	)	$	(2,204	)

	Basic and diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.22	)	$	(0.44	)	$	(0.28	)	$	(0.57	)	$	(0.15	)	$	(0.11	)	$	(0.06	)	$	(0.02	)

	In the three months ended December 31, 2013 net loss attributable to Endurance International Group Holdings, Inc. included $24.9 million of expense attributable to bonus payments in connection with the Company’s IPO. In addition, the three months ended December 31, 2013 included $9.7 million of stock-based compensation expense primarily attributable to the acceleration of certain non-vested shares and the granting of stock-based awards at the time of the IPO.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Basis of Preparation

Use of Estimates

Cash Equivalents

Cash and cash equivalents include all highly liquid investments with remaining maturities of three months or less at the date of purchase.

Restricted Cash

Accounts Receivable

Prepaid Domain Name Registry Fees

Fair Value of Financial Instruments

Concentrations of Credit and Other Risks

For the years ended December 31, 2012, 2013 and 2014, no subscriber represented 10% or more of the Company’s total revenue.

Property and Equipment

Software

Two to three years

Computers and office equipment

Three years

Furniture and fixtures

Five years

Leasehold improvements

Shorter of useful life or remaining term of the lease

Software Development Costs

Investments

Goodwill

The Company had goodwill of $984.2 million and $1,105.0 million as of December 31, 2013 and 2014, respectively, and no impairment charges have been recorded.

Long-Lived Assets

Acquired In-Process Research and Development (IPR&D)

Deferred Financing Costs

Revenue Recognition

Direct Costs of Revenue

Engineering and Development Costs

Engineering and development costs incurred in the development and maintenance of the Company’s technology infrastructure are expensed as incurred.

Sales and Marketing Costs

Foreign Currency

Income Taxes

Stock-Based Compensation

Net Loss per Share

Year Ended

December 31,

2012

2013

2014

(in thousands, except share

amount and per share data)

Computation of basic and diluted net loss per share:

Net loss attributable to Endurance International Group Holdings, Inc.

(139,298

)

(159,187

)

(42,835

)

Net loss per share attributable to Endurance International Group Holdings, Inc.:

Basic and diluted

(1.44

)

(1.55

)

(0.34

)

Weighted average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:

Basic and diluted

96,562,674

102,698,773

127,512,346

Guarantees

The Company has the following guarantees and indemnifications:

Recent Accounting Pronouncements

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
Summary of Significant Accounting Policies (Tables)	Dec. 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 to three years
	Computers and office equipment		Three years
	Furniture and fixtures		Five years
	Leasehold improvements		Shorter of useful life or remaining term of the lease
Potentially Dilutive Shares of Common Stock Excluded from the Diluted Weighted-average Number of Shares of Common Stock Outstanding	For the years ended December 31, 2012, 2013 and 2014, non-vested shares granted prior to the Company’s IPO, stock options, restricted stock awards and restricted stock units amounting to 8,108,177, 8,822,924 and 9,154,677, respectively, were excluded from the denominator in the calculation of diluted earnings per share as their inclusion would have been anti-dilutive.



		Year Ended			Year Ended			Year Ended
		December 31,			December 31,			December 31,
		2012			2013			2014
		(in thousands, except share
		amount and per share data)
	Computation of basic and diluted net loss per share:
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(139,298	)	$	(159,187	)	$	(42,835	)

	Net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted	$	(1.44	)	$	(1.55	)	$	(0.34	)

	Weighted average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.:
	Basic and diluted		96,562,674			102,698,773			127,512,346

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2014
Summary of Deferred Consideration Related to Acquisition	Summary of Deferred Consideration Related to Acquisitions
	Components of deferred consideration short-term and long-term as of December 31, 2014, consisted of the following (in thousands):


		Short-		Long-
		term		term
	Mojoness, Inc. (Acquired in 2012).	$	490	$	1,370
	Typepad (Acquired in 2013)		—		2,800
	Domain name business (Acquired in 2014)		9,027		—
	Webzai (Acquired 2014)		—		2,617
	BuyDomains (Acquired in 2014)		—		3,935
	Arvixe (Acquired in 2014)		4,400		—

	Total	$	13,917	$	10,722

HostGator [Member]
Summary of Preliminary Purchase Price Allocation on the Acquisition Date	The following table summarizes the preliminary purchase price allocation on the acquisition date and the estimated fair values of goodwill, intangible assets and tangible assets acquired and liabilities assumed (in thousands):


	Cash	$	593
	Accounts receivable		512
	Prepaid expenses and other current assets		2,762
	Property and equipment		315
	Intangible assets		116,060
	Investment		10,000
	Deferred tax asset		2,067
	Goodwill		189,296

	Total assets acquired		321,605

	Accounts payable		147
	Accrued expenses		5,102
	Deferred revenue		16,558

	Total liabilities assumed		21,807

	Net assets acquired	$	299,798

Homestead Technologies Inc [Member]
Summary of Preliminary Purchase Price Allocation on the Acquisition Date	The following table summarizes the Homestead purchase price allocation on the acquisition date and the estimated fair values of goodwill, intangible assets and tangible assets acquired and liabilities assumed (in thousands):


	Accounts receivable	$	1,575
	Prepaid expenses and other assets		399
	Property and equipment		1,287
	Intangible assets		58,240
	Goodwill		22,063

	Total assets acquired		83,564

	Accounts payable		2,178
	Reserves for refunds and chargebacks		30
	Deferred tax liability		17,558
	Deferred revenue		2,337

	Total liabilities assumed		22,103

	Net assets acquired	$	61,461

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
Fair Value Measurements (Tables)	Dec. 31, 2014
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 December 31, 2014:
	Financial liabilities:
	Contingent earn-out consideration	$	10,887			—		—	$	10,887

	Total financial liabilities	$	10,887			—		—	$	10,887

Significant Unobservable Inputs (Level 3) [Member]
Basis of Fair Value Measurements	The following table summarizes the changes in the financial liabilities measured on a recurring basis using Level 3 inputs as of December 31, 2013 and 2014 (in thousands):


	Financial liabilities measured using Level 3 inputs at January 1, 2013	$	1,383
	Accrual of contingent earn-out related to 2013 acquisition		2,934
	Payment of contingent earn-out related to 2013 acquisition		(2,000	)
	Change in fair value of contingent earn-out		(662	)

	Financial liabilities measured using Level 3 inputs at December 31, 2013	$	1,655
	Accrual of contingent earn-out related to 2014 acquisition		22,987
	Payment of contingent earn-outs related to 2012 and 2014 acquisitions		(14,158	)
	Change in fair value of contingent earn-outs		403

	Financial liabilities measured using Level 3 inputs at December 31, 2014	$	10,887

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
Property and Equipment (Tables)	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Components of Property and Equipment	Components of property and equipment consisted of the following (in thousands):


		Year Ended
		December 31,
		2013			2014
	Software	$	4,503		$	22,550
	Computers and office equipment		59,201			76,274
	Furniture and fixtures		3,715			4,045
	Leasehold improvements		6,033			7,015
	Construction in process		1,392			2,378

	Property and equipment—at cost		74,844			112,262
	Less accumulated depreciation		(25,129	)		(55,425	)

	Property and equipment—net	$	49,715		$	56,837

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


		December 31, 2013			December 31, 2014
	Software	$	—		$	11,704
	Less accumulated depreciation		—			(3,901	)

	Assets under capital lease—net	$	—		$	7,803

Summary of Future Minimum Lease Payments under Capital Lease	At December 31, 2014, the expected future minimum lease payments under the capital lease discussed above were approximately as follows (in thousands):


		Amount
	2015	$	4,112
	2016		4,420

	Total minimum lease payments		8,532
	Less amount representing interest		(437	)

	Present value of minimum lease payments (capital lease obligation)		8,095
	Current portion		3,793

	Long-term portion	$	4,302

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
Goodwill and Other Intangible Assets (Tables)	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill Balances	The following table summarizes the changes in the Company’s goodwill balances as of December 31, 2013 and 2014 (in thousands):


	Goodwill balance at January 1, 2013	$	936,746
	Goodwill related to 2012 acquisition		844
	Goodwill related to 2013 acquisitions		46,617

	Goodwill balance at December 31, 2013	$	984,207
	Goodwill related to 2013 acquisition		(2,107	)
	Goodwill related to 2014 acquisitions		123,452
	Foreign translation impact		(529	)

	Goodwill balance at December 31, 2014	$	1,105,023

Summary of Other Intangible Assets	At December 31, 2013, other intangible assets consisted of the following (in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Developed technology	$	183,201		$	36,195	$	147,006		10 years
	Subscriber relationships		346,506			138,297		208,209		13 years
	Trade-names		69,202			20,633		48,569		13 years
	Intellectual property		2,820			464		2,356		8 years

	Total December 31, 2013	$	601,729		$	195,589	$	406,140

	At December 31, 2014, other intangible assets consisted of the following (in thousands):


		Gross			Accumulated		Net Carrying		Weighted
		Carrying			Amortization		Amount		Average
		Amount							Useful Life
	Developed technology	$	202,654		$	57,557	$	145,097		7 years
	Subscriber relationships		364,724			204,950		159,774		5 years
	Trade-names		79,754			31,869		47,885		6 years
	Intellectual property		29,520			2,976		26,544		13 years
	Domain names available for sale		27,019			732		26,287		Indefinite
	Leasehold interests		314			197		117		1 year
	In-process research and development		4,634			—		4,634		—

	Total December 31, 2014	$	708,619		$	298,281	$	410,338

Summary of Expected Future Amortization of Other Intangible Assets	At December 31, 2014, the expected future amortization of the other intangible assets, excluding indefinite life and in-process research and development intangibles, was approximately as follows (in thousands):


	Year Ending December 31,	Amount
	2015	$	84,000
	2016		68,000
	2017		55,000
	2018		44,000
	2019		36,000
	Thereafter		93,000

	Total	$	380,000

Notes_Payable_Tables

Notes Payable (Tables)	12 Months Ended
Notes Payable (Tables)	Dec. 31, 2014
Schedule of Notes Payable	At December 31, 2013 and 2014, notes payable consisted of the following (in thousands):


		December 31,			December 31,
		2013			2014
	LIBOR First Lien term loan	$	1,047,375		$	1,036,875
	LIBOR Revolver loan		—			50,000

		$	1,047,375		$	1,086,875

Summary of Interest Rates and Interest Expense	The following table provides a summary of loan interest rates incurred and interest expense for the years ended December 31, 2012, 2013 and 2014 (in thousands):


		Year Ended			Year Ended			Year Ended
		December 31, 2012			December 31, 2013			December 31, 2014
	Interest rate—LIBOR		6.25%-11.00	%		5.00%-10.25	%		5.00%-7.75	%
	Interest rate—reference		8.5	%		8.5	%		8.5	%
	Non-refundable fee—unused facility		0.5	%		0.5	%		0.5	%
	Interest expense and service fees	$	52,922		$	85,327		$	56,247
	Amortization of deferred financing fees	$	4,466		$	260		$	83
	Amortization of net present value of deferred consideration	$	1,093		$	1,590		$	183
	Interest recorded on extinguishment of term loans	$	67,611		$	10,833		$	—
	Accretion of present value of deferred bonus payments	$	73		$	111		$	1
	Interest expense for capital lease obligations	$	—		$	—		$	503
	Interest expense for deferred consideration promissory note	$	—		$	267		$	280
	Other interest expense	$	—		$	61		$	117

	Total interest expense	$	126,165		$	98,449		$	57,414

Notes Payable, Other Payables [Member]
Summary of Maturity of the Notes Payable	The maturity of the notes payable at December 31, 2014 is as follows (in thousands):


		Revolver			First Lien			Total
		Revolver			Term Loan			Total
	2015	$	50,000		$	10,500		$	60,500
	2016		—			10,500			10,500
	2017		—			10,500			10,500
	2018		—			10,500			10,500
	2019		—			994,875			994,875

	Total	$	50,000		$	1,036,875		$	1,086,875

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
Stock-Based Compensation (Tables)	Dec. 31, 2014
Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's IPO	The following tables present a summary of the 2012 restricted stock awards activity for the year ended December 31, 2014 for restricted stock awards that were granted prior to the Company’s IPO:


			2012 Restricted Stock Awards
	Non-Vested at December 31, 2013			1,456,666
	Forfeitures			(50,536	)
	Vested			(647,008	)

	Non-Vested at December 31, 2014			759,122

Summary of Restricted Stock Units that were Granted in Connection with IPO and the Non-Vested Balance	The following table provides a summary of the restricted stock units that were granted in connection with the IPO under this plan and the non-vested balance as of December 31, 2014:


			Restricted Stock Units			Weighted
						Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			288,014		$	12
	Vested and unissued			(132,920	)	$	12

	Non-vested at December 31, 2014			155,094		$	12

Stock Incentive Plan	The weighted-average assumptions used to compute stock-based compensation expense for awards granted under the 2013 Stock Incentive Plan during the years ended December 31, 2013 and 2014 are as follows:


			2013			2014
	Risk-free interest rate			1.9	%		2.1	%
	Expected volatility			60	%		58.3	%
	Expected life (in years)			6.25			6.25
	Expected dividend yield			—			—
Summary of Stock Options	The following table provides a summary of the Company’s stock options as of December 31, 2014 and the stock option activity for all stock options granted under the 2013 Plan during the year ended December 31, 2014 (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			129,013		$	14.8
	Exercised			(11,390	)	$	12
	Canceled			(329,335	)	$	12.03

	Outstanding at December 31, 2014			5,407,959		$	12.07			8.8	$	34,487

	Exercisable at December 31, 2014			1,556,275		$	12			8.8	$	10,007

	Expected to vest after December 31, 2014(1)			3,795,293		$	12.09			8.8	$	24,064

	Exercisable as of December 31, 2014 and expected to vest thereafter(2)			5,351,568		$	12.06			8.8	$	34,071


	-1	This represents the number of unvested options outstanding as of December 31, 2014 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate.
	-2	This represents the number of vested options as of December 31, 2014 plus the number of unvested options outstanding as of December 31, 2014 that are expected to vest in the future, which have been reduced using an estimated forfeiture rate.
	-3	The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on December 31, 2014 of $18.43 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 in connection with or subsequent to the IPO (in thousands):


			2012			2013			2014
	Cost of revenue		$	26		$	126		$	547
	Sales and marketing			266			459			1,585
	Engineering and development			133			267			883
	General and administrative			1,883			9,911			13,028

	Total operating expense		$	2,308		$	10,763		$	16,043

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 December 31, 2014 (in thousands):


			Unrecognized Compensation			Weighted
			Expense at December 31, 2014			Average
						Period To Be
						Recognized
	2012 Restricted Stock Awards		$	653			1.3 years
	2012 Restricted Stock Unit Awards		$	1,820			1.2 years
	2013 Plan Stock Option Awards		$	25,963			2.8 years
	2013 Plan Restricted Stock Awards		$	7,968			2.7 years
	2013 Plan Restricted Stock Unit Awards		$	4,068			2.8 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 year ended December 31, 2014:


			Restricted Stock Awards			Weighted
						Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			714,928		$	12
	Granted			313,840		$	13.11
	Vested			(219,812	)	$	12.28
	Canceled			(113,644	)	$	12.08

	Non-vested at December 31, 2014			695,312		$	12.4

Restricted Stock Units [Member]
Summary of Restricted Stock Awards and Restricted Stock Units	The following table provides a summary of the Company’s restricted stock unit activity for the 2013 Plan during the year ended December 31, 2014:


			Restricted Stock Units			Weighted
						Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2013			461,556		$	12
	Vested and unissued			(120,395	)	$	12

	Non-vested at December 31, 2014			341,161		$	12

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Components of Income/Loss Before Income Taxes	The domestic and foreign components of loss before income taxes for the periods presented (in thousands):


		Year Ended
		December 31,			December 31,			December 31,
		2012			2013			2014
	United States	$	(216,478	)	$	(158,481	)	$	(17,002	)
	Foreign		—			(2,894	)		(27,603	)

	Total loss before income taxes	$	(216,478	)	$	(161,375	)	$	(44,605	)


Components of Income Taxes Benefit and Expenses	The components of the provision (benefit) for income taxes consisted of the following (in thousands):


		Year Ended
		December 31,			December 31,			December 31,
		2012			2013			2014
	Current:
	U.S. federal	$	—		$	—		$	781
	State		407			267			183
	Foreign		—			914			1,582

	Total current provision		407			1,181			2,546

	Deferred:
	U.S. federal		(64,295	)		(50,007	)		(581	)
	State		(13,315	)		(8,852	)		(3,983	)
	Foreign		—			(1,590	)		(5,310	)
	Change in valuation allowance		—			55,672			13,514

	Total deferred provision		(77,610	)		(4,777	)		3,640

	Total expense (benefit)	$	(77,203	)	$	(3,596	)	$	6,186

Reconciliation of Statutory Federal Rate	The following table presents a reconciliation of the statutory federal rate, and the Company’s effective tax rate, for the periods presented:


		Year Ended
		December 31,			December 31,			December 31,
		2012			2013			2014
	U.S. federal taxes at statutory rate		34	%		34	%		34	%
	State income taxes, net of federal benefit		3.6			3.2			5.9
	Nondeductible stock-based compensation		(0.4	)		(0.7	)		(2.5	)
	Nondeductible transaction costs		(0.6	)		(1.1	)		(1.0	)
	Other foreign permanent differences		—			—			(2.5	)
	Credits		—			—			0.6
	Foreign rate differential		—			(0.2	)		(11.7	)
	Change in valuation allowance—U.S.		—			(34.0	)		(23.2	)
	Change in valuation allowance—foreign		—			(0.5	)		(7.0	)
	Rate change		0.4			0.4			(1.1	)
	Prior year true-up stock-based compensation—U.S.		—			—			(2.0	)
	Other		(1.3	)		1.1			(3.4	)

	Total		35.7	%		2.2	%		(13.9	)%

Components of the Company's Deferred Income Tax Assets and Liabilities	The significant components of the Company’s deferred income tax assets and liabilities as of December 31, 2013 and December 31, 2014 are as follows (in thousands):


		2013			2014
	Deferred income tax assets:
	Net operating loss carry forward	$	87,784		$	70,070
	Credit carryforward		—			724
	Other		1,598			910
	Deferred compensation		556			571
	Deferred revenue		11,622			18,385
	Other reserves		5,848			4,200
	Stock-based compensation		2,788			5,360

	Total deferred income tax assets		110,196			100,220

	Deferred income tax liabilities:
	Purchased intangible assets		(56,848	)		(32,315	)
	Goodwill		(10,736	)		(17,404	)
	Property and equipment		(16	)		(2,852	)

	Total deferred income tax liabilities		(67,600	)		(52,571	)
	Valuation allowance		(55,786	)		(69,271	)

	Net deferred income tax assets/(liabilities)	$	(13,190	)	$	(21,622	)

Severance_and_Other_Exit_Costs1

Severance and Other Exit Costs (Tables)	12 Months Ended
Severance and Other Exit Costs (Tables)	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Summary of Activity Related to Company's Severance and Other Exit Costs Accrual	The following table provides a summary of the activity for the year ended December 31, 2014 related to the Company’s severance and other exit costs accrual (in thousands):


		Employee Severance			Facilities			Total
	Balance at December 31, 2013	$	—		$	—		$	—
	Severance and other exit cost charges		2,320			2,140			4,460
	Cash paid		(1,726	)		(285	)		(2,011	)

	Balance at December 31, 2014	$	594		$	1,855		$	2,449

Summary of Severance Charges	The following table presents severance charges recorded in the consolidated statement of operations and comprehensive loss for the periods presented (in thousands):


		Year Ended
		December 31, 2014
	Cost of revenue	$	517
	Sales and marketing		301
	Engineering and development		960
	General and administrative		542

	Total severance charges	$	2,320

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Summary of Future Minimum Annual Rental Payments Under these Leases	The Company has operating lease commitments for certain facilities and equipment that expire on various dates through 2026. The following table outlines future minimum annual rental payments under these leases at December 31, 2014 (in thousands):


	Year Ending December 31,	Amount
	2015	$	8,451
	2016		8,378
	2017		7,181
	2018		5,093
	2019		5,000
	Thereafter		19,949

	Total minimum lease payments	$	54,052

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
Related Party Transactions (Tables)	Dec. 31, 2014
Immediate Family Member of Management or Principal Owner [Member]
Summary of Related Party Transactions	The following table presents the amount of related party transactions recorded in the consolidated statements of operations and comprehensive loss and amounts included in accounts payable and accrued expense in the consolidated balance sheets relating to services under these agreements for the periods indicated (in thousands):


		2012		2013		2014
	Cost of revenue	$	4,600	$	5,200	$	7,400
	Sales and marketing		300		300		600
	Engineering and development		1,000		900		1,700
	General and administrative		900		900		700

	Total related party transaction expense	$	6,800	$	7,300	$	10,400

	Amount included in accounts payable or accrued expense	$	200	$	400-	$	1,300

Director [Member]
Summary of Related Party Transactions	The following table presents the amount of related party transactions recorded in the consolidated statements of operations and comprehensive loss and amounts included in accounts payable and accrued expense in the consolidated balance sheets relating to services under these agreements for the periods indicated (in thousands):


		2012		2013		2014
	Revenue (contra)	$	—	$	—	$	600
	Cost of revenue	$	2,200	$	3,000	$	4,800

	Total related party transaction expense	$	2,200	$	3,000	$	5,400

	Amount included in accounts payable or accrued expense	$	400	$	700	$	900

Information_about_Geographic_A1

Information about Geographic Areas (Tables)	12 Months Ended
Information about Geographic Areas (Tables)	Dec. 31, 2014
Text Block [Abstract]
Schedule of Tangible Long-Lived Assets	The following table presents the amount of tangible long-lived assets by geographic area (in thousands):


		2013		2014
	United States	$	49,269	$	55,191
	International		446		1,646

	Total	$	49,715	$	56,837

Quarterly_Financial_Data_unaud1

Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
Quarterly Financial Data (unaudited) (Tables)	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Condensed Income Statement	The following table presents the Company’s unaudited quarterly financial data (in thousands):


		For the three months ended:
		March 31,			June 30,			Sept. 30,			Dec. 31,			March 31,			June 30,			Sept. 30,			Dec. 31,
		2013			2013			2013			2013			2014			2014			2014			2014
	Revenue	$	122,741		$	128,222		$	132,913		$	136,420		$	145,750		$	151,992		$	160,167		$	171,936
	Gross profit	$	35,533		$	40,250		$	45,748		$	48,862		$	56,559		$	59,381		$	62,751		$	69,666
	Income (loss) from operations	$	(12,234	)	$	(10,880	)	$	(4,335	)	$	(35,599	)	$	(5,499	)	$	(1,085	)	$	5,254		$	13,808
	Net loss attributable to Endurance International Group Holdings, Inc.	$	(21,728	)	$	(42,958	)	$	(27,027	)	$	(67,474	)	$	(19,285	)	$	(13,448	)	$	(7,898	)	$	(2,204	)

	Basic and diluted net loss per share attributable to Endurance International Group Holdings, Inc.	$	(0.22	)	$	(0.44	)	$	(0.28	)	$	(0.57	)	$	(0.15	)	$	(0.11	)	$	(0.06	)	$	(0.02	)

Nature_of_Business_Additional_

Nature of Business - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended			0 Months Ended
	Oct. 23, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 30, 2013	Nov. 26, 2014	Nov. 20, 2014
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Stock issued during period, shares, stock splits	105,187.36	105,187.36
Common stock, shares issued	105,187,363	130,959,113	124,788,853
Common stock, shares outstanding	105,187,363	130,914,333	124,766,544
Common stock, shares authorized	500,000,000	500,000,000	500,000,000
Common stock, par value	$0.00	$0.00	$0.00
Preferred stock, par value	$0.00	$0.00	$0.00
Preferred stock, shares authorized	5,000,000	5,000,000	5,000,000
Net proceeds from issuance of common stock		$43,500,000	$252,612,000	$100,000
Stock issuance cost		2,405,176	18,219,271
Initial Public Offering [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, shares issued					21,051,000
Common stock, per share					$12
Gross proceeds from initial public offering after deducting underwriting discounts, commissions and expenses payable					252,600,000
Net proceeds from initial public offering after deducting underwriting discounts, commissions and expenses payable					232,100,000
Follow-On Public Offering [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Common stock, shares issued						3,000,000	13,000,000
Common stock, per share						$14.50
Number of shares sold by the selling stockholders						10,000,000
Gross proceeds from issuance of common stock						43,500,000
Net proceeds from issuance of common stock						41,100,000
Underwriting discounts and commissions						1,700,000
Stock issuance cost						700,000
Over-Allotment Option [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of shares sold by the selling stockholders						1,950,000	1,950,000
Selling Stockholders [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Stock issuance cost						$300,000

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	0 Months Ended		1 Months Ended	12 Months Ended
	Oct. 31, 2013	Oct. 23, 2013	Oct. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 12, 2014
	Oct. 31, 2013	Oct. 23, 2013	Investment	Segment	Dec. 31, 2013	Dec. 31, 2012	Aug. 12, 2014
Accounting Policies [Line Items]
Number of reportable segments				1
Cash and cash equivalents maturity Period				Three months or less
Software development cost capitalized				$5,400,000	$1,200,000	$0
Number of minority investments	1		1
Impairment charges	2,600,000		2,600,000
Percentage of voting Interest			50.00%
Percentage of voting Interest			40.00%
Impairment				0	0
Carrying value of the reporting unit's net assets				900.00%	900.00%
Goodwill				1,105,023,000	984,207,000	936,746,000
Impairment charges				0	0
Impairment loss charged to expense				0	0	0
Contract service period				36 months
Sales and marketing costs				146,797,000	117,689,000	83,110,000
Foreign currency transaction gains (losses)				800,000	1,200,000	0
Unrecognized tax benefits				0	0	0
Interest expense and penalties				0	0	0
Stock issued during period, shares, stock splits		105,187.36		105,187.36
Non-vested shares excluded				9,154,677	8,822,924	8,108,177
Indemnification obligations				0
Indemnification obligations claims outstanding				0
Minimum [Member]
Accounting Policies [Line Items]
Percentage of voting Interest				25.00%
Maximum [Member]
Accounting Policies [Line Items]
Percentage of voting Interest				50.00%
IPR&D [Member]
Accounting Policies [Line Items]
Impairment loss charged to expense				0	0	0
In-process research and development capitalized						1,300,000
Estimated useful life					5 years
Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Accounting Policies [Line Items]
Percentage of total revenue				10.00%	10.00%	10.00%
WebZai Ltd [Member]
Accounting Policies [Line Items]
Goodwill							3,000,000
WebZai Ltd [Member] \| IPR&D [Member]
Accounting Policies [Line Items]
In-process research and development capitalized				4,600,000			4,600,000
Directi [Member]
Accounting Policies [Line Items]
Goodwill				91,200,000
Directi [Member] \| IPR&D [Member]
Accounting Policies [Line Items]
In-process research and development capitalized				$0

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Summary of Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2014
Software [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	2 years
Software [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements	Shorter of useful life or remaining term of the lease

Summary_of_Significant_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								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Net loss attributable to Endurance International Group Holdings, Inc.	($2,204)	($7,898)	($13,448)	($19,285)	($67,474)	($27,027)	($42,958)	($21,728)	($42,835)	($159,187)	($139,298)
Net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted	($0.02)	($0.06)	($0.11)	($0.15)	($0.57)	($0.28)	($0.44)	($0.22)	($0.34)	($1.55)	($1.44)
Weighted average number of common shares used in computing net loss per share attributable to Endurance International Group Holdings, Inc.: Basic and diluted									127,512,346	102,698,773	96,562,674

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended		3 Months Ended	0 Months Ended				3 Months Ended	0 Months Ended
Acquisitions - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 23, 2014	31-May-14	Aug. 31, 2013	Dec. 31, 2014	Aug. 12, 2014	Sep. 18, 2014	Jul. 13, 2012	Sep. 17, 2012	Dec. 31, 2013	Oct. 31, 2014	Dec. 11, 2013
Business Acquisition [Line Items]
Deferred interest payment	$183,000	$1,590,000	$1,093,000
Goodwill	1,105,023,000	984,207,000	936,746,000				1,105,023,000					984,207,000
Aggregate amount deferred and earn-out payments	200,000	1,800,000
Balance of earn-out payments	1,900,000						1,900,000
Net increase in deferred and earn-out payments	400,000
Goodwill deductible for tax	100,000						100,000
Partial settlement of redeemable non-controlling interest liability	4,190,000
Redeemable non-controlling interest	30,543,000	20,772,000					30,543,000					20,772,000
Purchase of domain names	200,000	751,000
Interest expense	57,414,000	98,449,000	126,165,000
Subscriber Relationships [Member]
Business Acquisition [Line Items]
Estimated useful life	5 years	13 years
Intangible assets, amortization period	17 years
Weighted average useful life	6 years 10 months 24 days
Developed Technology [Member]
Business Acquisition [Line Items]
Estimated useful life	7 years	10 years
Intangible assets, amortization period	7 years
Weighted average useful life	7 years 9 months 18 days
Trade-Names [Member]
Business Acquisition [Line Items]
Estimated useful life	6 years	13 years
Intangible assets, amortization period	5 years
Weighted average useful life	6 years 4 months 24 days
Leasehold Interests [Member]
Business Acquisition [Line Items]
Estimated useful life	1 year
Intangible assets, amortization period	4 years
Weighted average useful life	1 year 4 months 24 days
IPR&D [Member]
Business Acquisition [Line Items]
Estimated useful life		5 years
Long-lived intangible assets			1,300,000
Domain Name Business [Member]
Business Acquisition [Line Items]
Decreased fair value of the earn out	47,000
Intellectual Property [Member]
Business Acquisition [Line Items]
Estimated useful life	13 years	8 years
Weighted average useful life	14 years 3 months 18 days
Directi [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price	109,800,000
Business acquisition, cash paid	82,600,000			20,500,000		5,000,000	57,100,000
Goodwill	91,200,000						91,200,000
Deferred revenue	3,000,000						3,000,000
Property and equipment	2,700,000						2,700,000
Deferred tax liabilities	2,400,000						2,400,000
Date of acquisition	23-Jan-14
Business, acquisition, number of shares issued	2,269,579			2,123,039	146,540
Issuance of common stock, price per share	$12						$12
Business acquisition, values of shares issued	27,200,000						27,200,000
Other assets	4,700,000						4,700,000
Working capital	200,000						200,000
Other payables	5,400,000						5,400,000
Revenue from acquisitions	29,000,000
Directi [Member] \| Subscriber Relationships [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	7,700,000						7,700,000
Directi [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	6,400,000						6,400,000
Directi [Member] \| Trade-Names [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	7,400,000						7,400,000
Directi [Member] \| Leasehold Interests [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	300,000						300,000
Directi [Member] \| IPR&D [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	0						0
Directi [Member] \| Domain Name Business [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price	36,200,000
Business acquisition, cash paid	36,200,000
Long-lived intangible assets	26,600,000						26,600,000
Goodwill	9,600,000						9,600,000
Estimated acquisition liability	9,000,000						9,000,000
Purchase of domain names	27,200,000
Date of acquisition agreement	31-Dec-14
Directi [Member] \| Domain Name Business [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Additional aggregate payments	62,000,000						62,000,000
WebZai Ltd [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price								9,500,000
Business acquisition, cash paid								7,000,000
Goodwill								3,000,000
Other liabilities								100,000
Deferred tax liabilities								2,600,000
Business acquisition, additional consideration								3,000,000
Business acquisition, net present value of the additional consideration								2,500,000
Interest expense								500,000
WebZai Ltd [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Long-lived intangible assets								4,600,000
WebZai Ltd [Member] \| IPR&D [Member]
Business Acquisition [Line Items]
Long-lived intangible assets	4,600,000						4,600,000	4,600,000
BuyDomains [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price									44,900,000
Business acquisition, cash paid									41,100,000
Goodwill									4,200,000
Property and equipment									300,000
Date of acquisition	18-Sep-14
Business acquisition, additional consideration									4,500,000
Business acquisition, net present value of the additional consideration									3,800,000
Interest expense									700,000
Prepaid expense and other current assets									4,000,000
BuyDomains [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Long-lived intangible assets									7,600,000
BuyDomains [Member] \| Trade-Names [Member]
Business Acquisition [Line Items]
Long-lived intangible assets									1,900,000
BuyDomains [Member] \| Domains Names Available for Sale [Member]
Business Acquisition [Line Items]
Long-lived intangible assets									26,900,000
HostGator [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price										299,800,000
Business acquisition, cash paid										227,300,000
Direct transaction expenses related to acquisition										2,400,000
Working capital adjustment paid			800,000
Additional purchase consideration aggregate	73,600,000
Number of installments	2
Future cash consideration	47,900,000	23,000,000					47,900,000					23,000,000
Deferred interest amount included in additional purchase consideration	2,700,000
Deferred interest payment		1,600,000	1,200,000
Long-lived intangible assets										116,060,000
Goodwill										189,296,000
Deferred tax asset										2,067,000
Deferred revenue										16,558,000
Property and equipment										315,000
Other payables										147,000
Prepaid expense and other current assets										2,762,000
HostGator [Member] \| Installment One [Member]
Business Acquisition [Line Items]
Additional purchase consideration on installments	49,400,000
Future compensation to employees	2,900,000						2,900,000
HostGator [Member] \| Installment Two [Member]
Business Acquisition [Line Items]
Additional purchase consideration on installments	24,200,000
Future compensation to employees	2,000,000						2,000,000
HostGator [Member] \| Subscriber Relationships [Member]
Business Acquisition [Line Items]
Estimated useful life	20 years
Intangible assets										97,600,000
HostGator [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Estimated useful life	10 years
Intangible assets										1,600,000
HostGator [Member] \| Trade-Names [Member]
Business Acquisition [Line Items]
Estimated useful life	10 years
Intangible assets										16,900,000
Homestead Technologies Inc [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price											61,500,000
Business acquisition, cash paid											60,400,000
Direct transaction expenses related to acquisition											1,500,000
Working capital adjustment paid			1,100,000
Long-lived intangible assets											58,240,000
Goodwill											22,063,000
Deferred revenue											2,337,000
Property and equipment											1,287,000
Deferred tax liabilities											17,558,000
Other payables											2,178,000
Prepaid expense and other current assets											399,000
Homestead Technologies Inc [Member] \| Subscriber Relationships [Member]
Business Acquisition [Line Items]
Estimated useful life	10 years
Intangible assets											41,600,000
Homestead Technologies Inc [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Estimated useful life	5 years
Intangible assets											7,700,000
Homestead Technologies Inc [Member] \| Trade-Names [Member]
Business Acquisition [Line Items]
Estimated useful life	10 years
Intangible assets											7,600,000
Homestead Technologies Inc [Member] \| IPR&D [Member]
Business Acquisition [Line Items]
Intangible assets											1,300,000
Other Acquisitions [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price	31,000,000	5,400,000	13,500,000
Business acquisition, cash paid		8,800,000
Long-lived intangible assets	28,500,000	5,400,000	7,800,000				28,500,000					5,400,000
Goodwill	38,000,000	7,300,000	6,500,000				38,000,000					7,300,000
Deferred tax asset			500,000
Deferred revenue	9,300,000		1,300,000				9,300,000
Deferred consideration payable		5,500,000										5,500,000
Estimated acquisition liability		2,700,000										2,700,000
Estimated earn-out payment		700,000
Deferred consideration	2,800,000	2,000,000					2,800,000					2,000,000
Interest in privately-held company		17.50%										17.50%
Exercised call option												22,200,000
Minimum exercise of the put option	24,000,000
Estimated value of the redeemable non-controlling interest	20,600,000						20,600,000							20,600,000
Partial settlement of redeemable non-controlling interest liability	4,200,000
Redeemable non-controlling interest	30,500,000						30,500,000
Property and equipment	300,000						300,000
Other liabilities	2,600,000						2,600,000
Deferred tax liabilities	1,900,000						1,900,000
Negative net working capital	1,400,000						1,400,000
Arvixe [Member]
Business Acquisition [Line Items]
Business acquisition, estimated aggregate purchase price													22,000,000
Business acquisition, cash paid													17,600,000
Goodwill													15,400,000
Date of acquisition	31-Oct-14
Business acquisition, additional consideration													4,400,000
Deferred revenue													3,100,000
Arvixe [Member] \| Developed Technology [Member]
Business Acquisition [Line Items]
Long-lived intangible assets													100,000
Arvixe [Member] \| Trade-Names [Member]
Business Acquisition [Line Items]
Long-lived intangible assets													1,200,000
Arvixe [Member] \| Subscriber Relationships [Member]
Business Acquisition [Line Items]
Long-lived intangible assets													$8,400,000

Acquisitions_Summary_of_Prelim

Acquisitions - Summary of Preliminary Purchase Price Allocation on the Acquisition Date (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 13, 2012	Sep. 17, 2012
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Goodwill	$1,105,023,000	$984,207,000	$936,746,000
HostGator [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Cash				593,000
Accounts receivable				512,000
Prepaid expenses and other assets				2,762,000
Property and equipment				315,000
Intangible assets				116,060,000
Investment				10,000,000
Deferred tax asset				2,067,000
Goodwill				189,296,000
Total assets acquired				321,605,000
Accounts payable				147,000
Accrued expenses				5,102,000
Deferred revenue				16,558,000
Total liabilities assumed				21,807,000
Net assets acquired				299,798,000
Homestead Technologies Inc [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Accounts receivable					1,575,000
Prepaid expenses and other assets					399,000
Property and equipment					1,287,000
Intangible assets					58,240,000
Goodwill					22,063,000
Total assets acquired					83,564,000
Accounts payable					2,178,000
Reserves for refunds and chargebacks					30,000
Deferred tax liability					17,558,000
Deferred revenue					2,337,000
Total liabilities assumed					22,103,000
Net assets acquired					$61,461,000

Acquisitions_Summary_of_Deferr

Acquisitions - Summary of Deferred Consideration Related to Acquisition (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration short-term	$13,917
Deferred consideration long-term	10,722
Mojoness Inc [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration short-term	490
Deferred consideration long-term	1,370
Typead [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration long-term	2,800
Domain Name Business [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration short-term	9,027
WebZai Ltd [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration long-term	2,617
BuyDomains [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration long-term	3,935
Arvixe [Member]
Schedule Of Business Acquisitions Purchase Price Allocation [Line Items]
Deferred consideration short-term	$4,400

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of the earn-out consideration		$700,000
Amount paid to earn-out provisions	200,000
Estimated acquisition liability paid	13,917,000
Changes Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in fair value of the earn-out consideration	400,000
Acquisitions 2014 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated acquisition liability	$23,000,000

Fair_Value_Measurements_Basis_

Fair Value Measurements - Basis of Fair Value Measurements (Detail) (Fair Value, Measurements, Recurring [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financial liabilities:
Contingent earn-out consideration	$10,887	$1,655
Total financial liabilities	10,887	1,655
Significant Unobservable Inputs (Level 3) [Member]
Financial liabilities:
Contingent earn-out consideration	10,887	1,655
Total financial liabilities	$10,887	$1,655

Fair_Value_Measurements_Summar

Fair Value Measurements - Summary of Changes in the Financial Liabilities Measured on a Recurring Basis Using Level 3 Inputs (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]
Accrual of contingent earn-out	$13,917,000
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value Of Assets And Liabilities Measured On Recurring Basis [Line Items]
Financial liabilities measured using Level 3 inputs, Opening balance	1,655,000	1,383,000
Accrual of contingent earn-out	22,987,000	2,934,000
Payment of contingent earn-out	-14,158,000	-2,000,000
Change in fair value of contingent earn-out	403,000	-662,000
Financial liabilities measured using Level 3 inputs, Ending balance	$10,887,000	$1,655,000

Property_and_Equipment_Compone

Property and Equipment - Components of Property and Equipment (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	$112,262	$74,844
Less accumulated depreciation	-55,425	-25,129
Property and equipment-net	56,837	49,715
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	22,550	4,503
Computers and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	76,274	59,201
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	4,045	3,715
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	7,015	6,033
Construction in Process [Member]
Property, Plant and Equipment [Line Items]
Property and equipment-at cost	$2,378	$1,392

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Depreciation expense	$30,956	$18,615	$6,869
Term of lease	36 months

Property_and_Equipment_Summary

Property and Equipment - Summary of Software Assets under Capital Lease (Detail) (Software [Member], USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Software [Member]
Property, Plant and Equipment [Line Items]
Software	$11,704
Less accumulated depreciation	-3,901
Assets under capital lease-net	$7,803

Property_and_Equipment_Summary1

Property and Equipment - Summary of Future Minimum Lease Payments under Capital Lease (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
2015	$4,112
2016	4,420
Total minimum lease payments	8,532
Less amount representing interest	-437
Present value of minimum lease payments (capital lease obligation)	8,095
Current portion	3,793
Long-term portion	4,302
Present value of minimum lease payments (capital lease obligation)	$8,095

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Changes in Goodwill Balances (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Goodwill, beginning balance	$984,207		$936,746
Foreign translation impact	-529
Goodwill, ending balance	1,105,023		936,746
2012 Acquisitions [Member]
Goodwill [Line Items]
Goodwill related to acquisitions		844
Acquisitions 2013 [Member]
Goodwill [Line Items]
Goodwill related to acquisitions	-2,107
Goodwill related to acquisitions		46,617
Acquisitions 2014 [Member]
Goodwill [Line Items]
Goodwill related to acquisitions	$123,452

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Impairment	$0	$0
Amortization expense included in cost of revenue	102,723,000	105,915,000	88,118,000
Acquisitions 2013 [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill related to acquisitions	($2,107,000)

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$708,619	$601,729
Accumulated Amortization	298,281	195,589
Net Carrying Amount	410,338	406,140
Domains Names Available for Sale [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,019
Accumulated Amortization	732
Net Carrying Amount	26,287
Weighted Average Useful Life	Indefinite
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	202,654	183,201
Accumulated Amortization	57,557	36,195
Net Carrying Amount	145,097	147,006
Weighted Average Useful Life	7 years	10 years
Subscriber Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	364,724	346,506
Accumulated Amortization	204,950	138,297
Net Carrying Amount	159,774	208,209
Weighted Average Useful Life	5 years	13 years
Trade-Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	79,754	69,202
Accumulated Amortization	31,869	20,633
Net Carrying Amount	47,885	48,569
Weighted Average Useful Life	6 years	13 years
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,520	2,820
Accumulated Amortization	2,976	464
Net Carrying Amount	26,544	2,356
Weighted Average Useful Life	13 years	8 years
Leasehold Interests [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	314
Accumulated Amortization	197
Net Carrying Amount	117
Weighted Average Useful Life	1 year
IPR&D [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,634
Net Carrying Amount	$4,634
Weighted Average Useful Life		5 years
Weighted Average Useful Life	-

Goodwill_and_Other_Intangible_5

Goodwill and Other Intangible Assets - Summary of Expected Future Amortization of Other Intangible Assets (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$84,000
2016	68,000
2017	55,000
2018	44,000
2019	36,000
Thereafter	93,000
Total	$380,000

Investments_Additional_Informa

Investments - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended
Investments - Additional Information (Detail) (USD $)	Oct. 31, 2013	Oct. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 06, 2013
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition			$40,400,000	$6,500,000	$10,000,000
Ownership interest	40.00%	40.00%
Ownership interest percentage	10.00%
Interest note receivable	1,500,000	1,500,000
Impairment on the remaining investment	2,600,000	2,600,000
Recognized net (income)loss			61,000	2,067,000	23,000
Proportionate share exceed of the company's consolidated assets or income			10.00%	10.00%
Equity method investment, description			The Company did not have an equity method investment in which the Company's proportionate share exceeded 10% of the Company's consolidated assets or income from continuing operations.
Minimum [Member]
Schedule of Cost-method Investments [Line Items]
Voting interest			20.00%
Maximum [Member]
Schedule of Cost-method Investments [Line Items]
Voting interest			50.00%
Investment One [Member]
Schedule of Cost-method Investments [Line Items]
Ownership interest					50.00%
Investment Two [Member] \| JDI Backup Limited [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition						8,800,000
Ownership interest						17.50%
Wz Uk Ltd. [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition			3,900,000
Ownership interest			49.00%
AppMachine [Member]
Schedule of Cost-method Investments [Line Items]
Amount of investment for acquisition			15,200,000
Ownership interest			40.00%
Remaining percentage of acquisition			60.00%
Periodic payment on equity method investment, percentage			20.00%
Periodic payment on equity method investment determination percentage			20.00%
Automattic [Member]
Schedule of Cost-method Investments [Line Items]
Investment made on asset			$15,000,000
Percentage of outstanding shares invested			5.00%

Notes_Payable_Additional_Infor

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

0 Months Ended

1 Months Ended

9 Months Ended

12 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

Nov. 25, 2013

Nov. 30, 2013

Sep. 30, 2013

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Jul. 13, 2012

Nov. 30, 2012

Aug. 31, 2012

Apr. 22, 2012

Nov. 09, 2012

Aug. 31, 2013

Long-Term Debt [Line Items]

Current portion of notes payable

$60,500,000

$10,500,000

First lien term loan outstanding

1,086,875,000

1,047,375,000

Mandatory repayments on term loan

6,200,000

10,500,000

1,212,625,000

1,160,000,000

Additional financing cost

53,000

12,552,000

52,890,000

Debt instrument LIBOR rate

7.75%

Debt instrument reference rate

3.00%

8.50%

Amortization of deferred financing costs

83,000

2,768,000

43,405,000

Reduction in overall indebtedness

148,800,000

LIBOR based interest rate reduced

4.00%

Greater of the LIBOR rate

1.00%

Federal funds effective rate

0.50%

Adjusted LIBOR rate

2.00%

Interest expense

56,247,000

85,327,000

52,922,000

July Financing Amendment [Member]

Long-Term Debt [Line Items]

Third-party costs incurred to modify the debt

1,300,000

Bank Revolving Loan [Member]

Long-Term Debt [Line Items]

Notes payable amount outstanding

50,000,000

Aggregate principal amount not to exceed

125,000,000

Debt instrument LIBOR rate

6.25%

Debt instrument reference rate

5.25%

Accrued interest rate during period

8.50%

Revolving credit facility increase in borrowing capacity

40,000,000

Revolver maturity period

22-Dec-16

Federal funds effective rate

0.50%

Adjusted LIBOR rate

2.25%

Debt instrument basis spread on LIBOR rate

1.50%

Bank Revolving Loan [Member] | July Financing Amendment [Member]

Long-Term Debt [Line Items]

Aggregate principal amount not to exceed

75,000,000

Bank Revolving Loan [Member] | November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Aggregate principal amount not to exceed

85,000,000

Revolving Credit Facility [Member]

Long-Term Debt [Line Items]

Notes payable amount outstanding

50,000,000

November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Third-party financing related costs

1,500,000

First Lien [Member]

Long-Term Debt [Line Items]

Third-party financing related costs

1,300,000

November 2013 Financing Amendment [Member]

Long-Term Debt [Line Items]

Third-party financing related costs

400,000

London Interbank Offered Rate (LIBOR) [Member]

Long-Term Debt [Line Items]

Principal amount of term loan outstanding

1,036,900,000

1,047,400,000

Senior Notes 7.75% [Member] | Bank Revolver Loans [Member]

Long-Term Debt [Line Items]

First lien term loan outstanding

50,000,000

November 2012 Second Lien [Member]

Long-Term Debt [Line Items]

Mandatory repayments on term loan

315,000,000

November 2012 Second Lien [Member] | November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Face amount

315,000,000

LIBOR First Lien Term Loan [Member]

Long-Term Debt [Line Items]

First lien term loan outstanding

1,050,000,000

1,036,875,000

1,047,375,000

Additional repayment of term loan

166,200,000

First Lien [Member]

Long-Term Debt [Line Items]

Current portion of notes payable

10,500,000

Additional repayment of term loan

90,000,000

First Lien [Member] | London Interbank Offered Rate (LIBOR) [Member]

Long-Term Debt [Line Items]

Interest at LIBOR based rates

5.00%

7.75%

Accrued interest rate during period

7.75%

First Lien [Member] | Senior Notes 7.75% [Member]

Long-Term Debt [Line Items]

Interest at LIBOR based rates

7.75%

April 2012 Term Loan [Member]

Long-Term Debt [Line Items]

Face amount

535,000,000

Mandatory repayments on term loan

349,100,000

Amortization period

6 years

April 2012 Term Loan [Member] | July Financing Amendment [Member]

Long-Term Debt [Line Items]

Amortization period

6 years

Additional repayment of term loan

135,000,000

Additional financing cost

22,000,000

April 2012 Term Loan [Member] | November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Principal amount of term loan

668,300,000

Second Lien Credit Amendment New Term Loan [Member] | July Financing Amendment [Member]

Long-Term Debt [Line Items]

Face amount

140,000,000

Second Lien [Member]

Long-Term Debt [Line Items]

Debt instrument LIBOR rate

11.00%

Second Lien [Member] | London Interbank Offered Rate (LIBOR) [Member]

Long-Term Debt [Line Items]

Interest at LIBOR based rates

10.25%

November 2012 First Lien [Member] | November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Face amount

800,000,000

Second Lien Term Loan [Member] | November 2012 Financing Amendment [Member]

Long-Term Debt [Line Items]

Principal amount of term loan

140,000,000

November 2013 First Lien [Member]

Long-Term Debt [Line Items]

Mandatory repayments on term loan

$2,600,000

$10,500,000

$2,600,000

Maturity date

9-Nov-19

Notes_Payable_Schedule_of_Note

Notes Payable - Schedule of Notes Payable (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2013
Proforma Debt Instrument [Line Items]
Notes payable	$1,086,875	$1,047,375
LIBOR First Lien Term Loan [Member]
Proforma Debt Instrument [Line Items]
Notes payable	1,036,875	1,047,375	1,050,000
LIBOR Revolver Loan [Member]
Proforma Debt Instrument [Line Items]
Notes payable	$50,000

Notes_Payable_Summary_of_Matur

Notes Payable - Summary of Maturity of the Notes Payable (Detail) (Notes Payable, Other Payables [Member], USD $)	Dec. 31, 2014
Long-Term Debt [Line Items]
2015	$60,500
2016	10,500
2017	10,500
2018	10,500
2019	994,875
Total	1,086,875
First Lien Term Loan [Member]
Long-Term Debt [Line Items]
2015	10,500
2016	10,500
2017	10,500
2018	10,500
2019	994,875
Total	1,036,875
Bank Revolver Loans [Member]
Long-Term Debt [Line Items]
2015	50,000
Total	$50,000

Notes_Payable_Schedule_of_Inte

Notes Payable - Schedule of Interest Rates and Interest Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Long-Term Debt [Line Items]
Interest rate-LIBOR	7.75%
Interest rate-reference	8.50%	8.50%	8.50%
Non-refundable fee-unused facility	0.50%	0.50%	0.50%
Interest expense and service fees	$56,247	$85,327	$52,922
Amortization of deferred financing fees	83	260	4,466
Amortization of net present value of deferred consideration	183	1,590	1,093
Interest recorded on extinguishment of term loans		10,833	67,611
Accretion of present value of deferred bonus payments	1	111	73
Interest expense for capital lease obligations	503
Other interest expense	117	61
Total interest expense	57,414	98,449	126,165
Promissory Note [Member]
Long-Term Debt [Line Items]
Interest expense for deferred consideration promissory note	$280	$267
Minimum [Member]
Long-Term Debt [Line Items]
Interest rate-LIBOR	5.00%	5.00%	6.25%
Maximum [Member]
Long-Term Debt [Line Items]
Interest rate-LIBOR	7.75%	10.25%	11.00%

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	12 Months Ended	0 Months Ended	12 Months Ended
	Dec. 31, 2014	Apr. 20, 2012	Dec. 31, 2012	Dec. 31, 2013	Oct. 23, 2013
	Vote	Apr. 20, 2012	Dec. 31, 2012	Dec. 31, 2013	Oct. 23, 2013
Equity [Line Items]
Preferred stock, shares authorized	5,000,000			5,000,000	5,000,000
Preferred stock, par value	$0.00			$0.00	$0.00
Preferred stock, shares issued	0			0
Preferred stock, shares outstanding	0			0
Common stock, shares authorized	500,000,000			500,000,000	500,000,000
Common stock, par value	$0.00			$0.00	$0.00
Number of vote per share	1
Series E Preferred Stock [Member]
Equity [Line Items]
Preferred stock, shares authorized	150,000
Preferred stock, par value	$0.01
Preferred stock Conversion price	12.00%
Preferred stock redeemed		$150,000,000
Dividend paid		6,000,000	5,963,000
Preferred stock conversion price	$1,000

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock-based compensation expense		$0.70
Common stock issued	9.7
2013 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares issued			18,000,000
Shares available for grant			11,161,682
Stock options vesting period			4 years
2012 Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Number of shares of common stock with accelerated vesting			2,167,870
Number of shares of common stock with modified vesting			3,574,637
Number of shares of common stock fully vested			2,580,271
Number of shares of common stock with modified vesting that vest as vesting schedule of time-based stock awards			994,366
Aggregate stock-based compensation expense			1.4
Common stock issued			2.4
2012 Restricted Stock Awards [Member] \| Time-Based Vesting Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock-based compensation expense		6.5		2.3
2012 Restricted Stock Awards [Member] \| Performance-Based Vesting Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock-based compensation expense		$1.40
Restricted Stock [Member] \| 2013 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting period			4 years

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of 2012 Restricted Stock Awards Activity for Restricted Stock Awards that were Granted Prior to Company's IPO (Detail) (2012 Restricted Stock Awards [Member])	12 Months Ended
	Dec. 31, 2014
2012 Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	1,456,666
Forfeitures	-50,536
Vested	-647,008
Non-vested, Ending balance	759,122

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of Restricted Stock Units that were Granted in Connection with IPO and the Non-Vested Balance (Detail) (Restricted Stock Units [Member], USD $)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	461,556
Vested and unissued	-120,395
Non-vested, Ending balance	341,161
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
Vested and unissued	-132,920
Non-vested, Ending balance	155,094
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$288,014
Weighted Average Grant Date Fair Value, Vested and unissued	($132,920)
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$155,094

StockBased_Compensation_Stock_

Stock-Based Compensation - Stock Incentive Plan (Detail)	12 Months Ended
Stock-Based Compensation - Stock Incentive Plan (Detail)	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Risk-free interest rate	2.10%	1.90%
Expected volatility	58.30%	60.00%
Expected life (in years)	6 years 3 months	6 years 3 months
Expected dividend yield	0.00%	0.00%

StockBased_Compensation_Summar2

Stock-Based Compensation - Summary of Stock Options (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Options, Outstanding	5,619,671
Stock Options, Granted	129,013
Stock Options, Exercised	-11,390
Stock Options, Canceled	-329,335
Stock Options, Outstanding	5,407,959
Stock Options, Exercisable at December 31, 2014	1,556,275
Stock Options, Expected to vest after December 31, 2014	3,795,293
Stock Options, Exercisable as of December 31, 2014 30, 2014 and expected to vest thereafter	5,351,568
Weighted - Average Exercise Price, Outstanding	$12
Weighted - Average Exercise Price, Granted	$14.80
Weighted - Average Exercise Price, Exercised	$12
Weighted - Average Exercise Price, Canceled	$12.03
Weighted - Average Exercise Price, Outstanding	$12.07
Weighted - Average Exercise Price, Exercisable at December 31, 2014	$12
Weighted - Average Expected to vest after December 31, 2014	$12.09
Weighted - Average Exercise Price, Exercisable as of December 31, 2014 and expected to vest thereafter	$12.06
Weighted - Average Remaining Contractual Term, Outstanding	8 years 9 months 18 days
Weighted - Average Remaining Contractual Term, Exercisable at December 31, 2014	8 years 9 months 18 days
Weighted - Average Remaining Contractual Term, Expected to vest after December 31, 2014	8 years 9 months 18 days
Weighted - Average Remaining Contractual Term, Exercisable as of December 31, 2014 and expected to vest thereafter	8 years 9 months 18 days
Aggregate Intrinsic Value, Outstanding	$34,487
Aggregate Intrinsic Value, Exercisable	10,007
Aggregate Intrinsic Value, Expected to vest after September 30, 2014	24,064
Aggregate Intrinsic Value, Exercisable as of September 30, 2014 and expected to vest thereafter	$34,071

StockBased_Compensation_Summar3

Stock-Based Compensation - Summary of Stock Options (Parenthetical) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Estimated fair value of the Company's common stock	$18.43

StockBased_Compensation_Summar4

Stock-Based Compensation - Summary of Restricted Stock Awards and Restricted Stock Units (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	714,928
Granted	313,840
Vested	-219,812
Canceled	-113,644
Non-vested, Ending balance	695,312
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$12
Weighted Average Grant Date Fair Value, Granted	$13.11
Weighted Average Grant Date Fair Value, Vested	$12.28
Weighted Average Grant Date Fair Value, Canceled	$12.08
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$12.40
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, Beginning balance	461,556
Vested	120,395
Non-vested, Ending balance	341,161
Weighted Average Grant Date Fair Value, Non-vested, Beginning balance	$12
Weighted Average Grant Date Fair Value, Vested	$12
Weighted Average Grant Date Fair Value, Non-vested, Ending balance	$12

StockBased_Compensation_Summar5

Stock-Based Compensation - Summary of Total Stock-Based Compensation Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	$16,043	$10,763	$2,308
Cost of Revenue [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	547	126	26
Sales and Marketing [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	1,585	459	266
Engineering and Development [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	883	267	133
General and Administrative [Member]
Common Stock Options Restricted Stock Warrants And Changes In Capitalization [Line Items]
Total operating expense	$13,028	$9,911	$1,883

StockBased_Compensation_Summar6

Stock-Based Compensation - Summary of Unrecognized Compensation Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
2012 Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$653
Weighted average period to be recognized	1 year 3 months 18 days
2012 Plan [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	1,820
Weighted average period to be recognized	1 year 2 months 12 days
2013 Stock Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	7,968
Weighted average period to be recognized	2 years 8 months 12 days
2013 Stock Incentive Plan [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	4,068
Weighted average period to be recognized	2 years 9 months 18 days
2013 Stock Incentive Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$25,963
Weighted average period to be recognized	2 years 9 months 18 days

Dividend_Additional_Informatio

Dividend - Additional Information (Detail) (USD $)	0 Months Ended	12 Months Ended
Dividend - Additional Information (Detail) (USD $)	Nov. 09, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Dividends Payable [Line Items]
Dividend paid to Holdings LP	$300,000,000			$289,479,000
General and administrative expense		69,533,000	92,347,000	48,411,000
Compensation expenses			700,000
Unvested Shareholders [Member]
Dividends Payable [Line Items]
Dividend paid to Holdings LP	10,500,000
Existing Shareholders [Member]
Dividends Payable [Line Items]
Dividend paid to Holdings LP	$289,500,000

Recovered_Sheet1

Redeemable Non-controlling Interest - Additional Information (Detail) (USD $)	12 Months Ended	0 Months Ended
	Dec. 31, 2014	Jan. 13, 2015	Dec. 31, 2013
Schedule Of Changes In Redeemable Noncontrolling Interest [Line Items]
Redeemable non-controlling interest	$30,543,000		$20,772,000
Partial settlement of redeemable non-controlling interest liability	4,190,000
Change in estimated fair value	30,500,000
Subsequent Event [Member]
Schedule Of Changes In Redeemable Noncontrolling Interest [Line Items]
Partial settlement of redeemable non-controlling interest liability		$30,500,000

Income_Taxes_Components_of_Inc

Income Taxes - Components of Income/Loss Before Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
United States	($17,002)	($158,481)	($216,478)
Foreign	-27,603	-2,894
Total loss before income taxes	($44,605)	($161,375)	($216,478)

Income_Taxes_Components_of_Inc1

Income Taxes - Components of Income Taxes Benefit and Expenses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
U.S. federal	$781
State	183	267	407
Foreign	1,582	914
Total current provision	2,546	1,181	407
U.S. federal	-581	-50,007	-64,295
State	-3,983	-8,852	-13,315
Foreign	-5,310	-1,590
Change in valuation allowance	13,514	55,672
Total deferred provision	3,640	-4,777	-77,610
Total expense (benefit)	$6,186	($3,596)	($77,203)

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Statutory Federal Rate (Detail)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Benefit [Line Items]
U.S. federal taxes at statutory rate	34.00%	34.00%	34.00%
State income taxes, net of federal benefit	5.90%	3.20%	3.60%
Nondeductible stock-based compensation	-2.50%	-0.70%	-0.40%
Nondeductible transaction costs	-1.00%	-1.10%	-0.60%
Credits	0.60%
Foreign rate differential	-11.70%	-0.20%
Rate change	-1.10%	0.40%	0.40%
Prior year true-up stock-based compensation-U.S.	-2.00%
Other	-3.40%	1.10%	-1.30%
Total	-13.90%	2.20%	35.70%
Foreign Tax Authority [Member]
Income Tax Benefit [Line Items]
Other foreign permanent differences	-2.50%
Change in valuation allowance-foreign	-7.00%	-0.50%
Domestic Tax Authority [Member]
Income Tax Benefit [Line Items]
Change in valuation allowance-foreign	-23.20%	-34.00%

Income_Taxes_Components_of_the

Income Taxes - Components of the Company's Deferred Income Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Net operating loss carry forward	$70,070	$87,784
Credit carryforward	724
Other	910	1,598
Deferred compensation	571	556
Deferred revenue	18,385	11,622
Other reserves	4,200	5,848
Stock-based compensation	5,360	2,788
Total deferred income tax assets	100,220	110,196
Purchased intangible assets	-32,315	-56,848
Goodwill	-17,404	-10,736
Property and equipment	-2,852	-16
Total deferred income tax liabilities	-52,571	-67,600
Valuation allowance	-69,271	-55,786
Net deferred income tax assets/(liabilities)	($21,622)	($13,190)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended			0 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 26, 2014	Nov. 20, 2014	Oct. 23, 2013
Operating Loss Carryforwards [Line Items]
Unrecognized tax positions	$0	$0
Valuation allowance	69,271,000	55,786,000
Cumulative pre-tax book loss position period	3 years
Tax expense (benefit)	6,186,000	-3,596,000	-77,203,000
Provision related to foreign taxes	1,582,000	914,000
U.S. alternative minimum taxes	781,000
State Taxes	200,000
Increase in deferred tax liabilities	3,600,000
Foreign deferred tax benefit	-5,310,000	-1,590,000
Accounting treatment for goodwill	5,800,000
Amount of net operating loss carry-forwards available to offset future U.S. federal taxable income	158,900,000
Amount of net operating loss carry-forwards available to offset future state taxable income	158,500,000
Expire date of carry-forwards	Through 2033
Capital loss carry-forwards	400,000
Loss carry-forwards available to future foreign taxable income	37,200,000
Net operating loss carry-forwards	70,070,000	87,784,000
Shares of common stock	130,959,113	124,788,853				105,187,363
Cumulatively profitable foreign jurisdiction	8,200,000
Undistributed earnings	8,200,000
Deferred tax liability	1,200,000
Follow-On Public Offering [Member]
Operating Loss Carryforwards [Line Items]
Shares of common stock				3,000,000	13,000,000
Shares of common stock from the selling stockholders				10,000,000
Over-Allotment Option [Member]
Operating Loss Carryforwards [Line Items]
Shares of common stock from the selling stockholders				1,950,000	1,950,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Federal NOL carry-forward	800,000
Loss carry-forwards, expiration date	2018
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Federal NOL carry-forward	200,000
India [Member]
Operating Loss Carryforwards [Line Items]
Loss carry-forwards, expiration date	2021
Loss carry-forwards available to future foreign taxable income	2,700,000
United Kingdom [Member]
Operating Loss Carryforwards [Line Items]
Loss carry-forwards available to future foreign taxable income	$34,300,000

Severance_and_Other_Exit_Costs2

Severance and Other Exit Costs - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Positions	Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated	90
Severance cost incurred to date	$2,300,000
Severance and other exit costs accrued	2,449,000
Severance costs paid	2,011,000
Cost of revenue	381,488,000	350,103,000	237,179,000
General and administration expenses	69,533,000	92,347,000	48,411,000
Redwood City [Member]
Restructuring Cost and Reserve [Line Items]
Remaining lease obligations	3,000,000
Facilities charge	2,100,000
Cost of revenue	1,800,000
General and administration expenses	300,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other exit costs accrued	594,000
Severance costs paid	$1,726,000

Severance_and_Other_Exit_Costs3

Severance and Other Exit Costs - Summary of Activity Related to Company's Severance and Other Exit Costs Accrual (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Severance and other exit cost charges	$4,460
Cash paid	-2,011
Ending Balance	2,449
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other exit cost charges	2,320
Cash paid	-1,726
Ending Balance	594
Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other exit cost charges	2,140
Cash paid	-285
Ending Balance	$1,855

Severance_and_Other_Exit_Costs4

Severance and Other Exit Costs - Summary of Severance Charges (Detail) (Employee Severance [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Total severance charges	$2,320
Cost of Revenue [Member]
Restructuring Cost and Reserve [Line Items]
Total severance charges	517
Sales and Marketing [Member]
Restructuring Cost and Reserve [Line Items]
Total severance charges	301
Engineering and Development [Member]
Restructuring Cost and Reserve [Line Items]
Total severance charges	960
General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Total severance charges	$542

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Operating leases due date	2026
Total rent expense	$9.80	$8.90	$2.70

Commitments_and_Contingencies_2

Commitments and Contingencies - Summary of Future Minimum Annual Rental Payments Under these Leases (Detail) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
2015	$8,451
2016	8,378
2017	7,181
2018	5,093
2019	5,000
Thereafter	19,949
Total minimum lease payments	$54,052

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Statutorily prescribed limit	$17,500
Each participant's contribution		50.00%
Match vests		100.00%
Matching contribution made by the group under the plan	2,200,000	1,200,000	0
HostGator [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Percentage of next annual contribution to salary	4.00%
Match vests	100.00%
Matching contribution made by the group under the plan		100,000	100,000
Salary vesting period	3 years
Dotster, Inc. [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Each participant's contribution	50.00%
Percentage of next annual contribution to salary	3.00%
Match vests	100.00%
Other Acquisitions [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Matching contribution made by the group under the plan		$400,000	$200,000
Scenario One [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Each participant's contribution		100.00%
Percentage of next annual contribution to salary		3.00%
Scenario One [Member] \| HostGator [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Each participant's contribution	25.00%
Scenario One [Member] \| Dotster, Inc. [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Each participant's contribution	100.00%
Scenario Two [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Percentage of next annual contribution to salary		2.00%
Scenario Two [Member] \| Dotster, Inc. [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Percentage of next annual contribution to salary	2.00%

Related_Party_Transactions_Sum

Related Party Transactions - Summary of Related Party Transactions (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Other Related Party Transactions [Line Items]
Revenue (contra)	($171,936)	($160,167)	($151,992)	($145,750)	($136,420)	($132,913)	($128,222)	($122,741)	($629,845)	($520,296)	($292,156)
Cost of revenue									381,488	350,103	237,179
Sales and marketing									146,797	117,689	83,110
Engineering and development									19,549	23,205	13,803
General and administrative									69,533	92,347	48,411
Immediate Family Member of Management or Principal Owner [Member]
Schedule of Other Related Party Transactions [Line Items]
Cost of revenue									7,400	5,200	4,600
Sales and marketing									600	300	300
Engineering and development									1,700	900	1,000
General and administrative									700	900	900
Total related party transaction expense									10,400	7,300	6,800
Amount included in accounts payable or accrued expense	1,300				400				1,300	400	200
Chief Executive Officer and Two Investors [Member]
Schedule of Other Related Party Transactions [Line Items]
Revenue (contra)									600
Cost of revenue									4,800	3,000	2,200
Total related party transaction expense									5,400	3,000	2,200
Amount included in accounts payable or accrued expense	$900				$700				$900	$700	$400

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail)	Oct. 31, 2013	Jan. 13, 2015
Subsequent Event [Line Items]
Investment in JDI Backup Ltd.	40.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Investment in JDI Backup Ltd.		100.00%

Information_about_Geographic_A2

Information about Geographic Areas - Schedule of Tangible Long-Lived Assets (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Geographic Information [Line Items]
International	$56,837	$49,715
UNITED STATES
Geographic Information [Line Items]
International	55,191	49,269
International [Member]
Geographic Information [Line Items]
International	$1,646	$446

Quarterly_Financial_Data_Sched

Quarterly Financial Data - Schedule of Condensed Income Statement (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Revenue	$171,936	$160,167	$151,992	$145,750	$136,420	$132,913	$128,222	$122,741	$629,845	$520,296	$292,156
Gross profit	69,666	62,751	59,381	56,559	48,862	45,748	40,250	35,533	248,357	170,193	54,977
Income (loss) from operations	13,808	5,254	-1,085	-5,499	-35,599	-4,335	-10,880	-12,234	12,478	-63,048	-90,347
Net loss attributable to Endurance International Group Holdings, Inc.	($2,204)	($7,898)	($13,448)	($19,285)	($67,474)	($27,027)	($42,958)	($21,728)	($42,835)	($159,187)	($139,298)
Basic and diluted net loss per share attributable to Endurance International Group Holdings, Inc.	($0.02)	($0.06)	($0.11)	($0.15)	($0.57)	($0.28)	($0.44)	($0.22)	($0.34)	($1.55)	($1.44)

Quarterly_Financial_Data_Addit

Quarterly Financial Data - Additional Information (Detail) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Bonus payments related to initial public offering	$24.90
Stock-based compensation expense	$9.70