Web.com (WEB) 10-Q 4 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 03, 2018
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	WEB
Entity Registrant Name	WEB.COM GROUP, INC.
Entity Central Index Key	1,095,291
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		49,487,490

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue	$ 186,741	$ 185,118
Cost of Revenue and operating expenses:
Cost of revenue (excluding depreciation and amortization)	62,714	57,922
Sales and marketing	51,579	50,911
Technology and development	20,001	17,001
General and administrative	16,605	19,843
Restructuring expense	2,703	322
Asset impairment	93	143
Depreciation and amortization	17,514	18,433
Total cost of revenue and operating expenses	171,209	164,575
Income from operations	15,532	20,543
Interest expense, net	(8,760)	(7,891)
Net income before income taxes	6,772	12,652
Income tax expense	(2,196)	(6,134)
Net income	4,576	6,518
Other comprehensive income:
Foreign currency translation adjustments	(64)	598
Unrealized gain on investments, net of tax	0	1
Total comprehensive income	$ 4,512	$ 7,117
Basic earnings per share:
Net income per basic common share (in dollars per share)	$ 0.10	$ 0.13
Diluted earnings per share:
Net income per diluted common share (in dollars per share)	$ 0.09	$ 0.13
Basic weighted average common shares (in shares)	47,481	49,076
Diluted weighted average common shares (in shares)	49,066	50,800

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 9,660	$ 11,976
Accounts receivable, net of allowance of $1,548 and $1,454, respectively	27,160	25,424
Prepaid expenses	17,852	10,220
Deferred expenses	65,444	63,267
Other current assets	3,627	3,054
Total current assets	123,743	113,941
Property and equipment, net	56,280	57,188
Deferred expenses	49,262	46,316
Goodwill	885,257	885,662
Intangible assets, net	359,338	371,571
Other assets	21,791	21,565
Total assets	1,495,671	1,496,243
Current liabilities:
Accounts payable	21,039	23,357
Accrued expenses	13,809	15,957
Accrued compensation and benefits	13,268	15,560
Deferred revenue	241,429	233,574
Current portion of debt	24,943	16,612
Deferred consideration	581	22,466
Other liabilities	7,463	6,321
Total current liabilities	322,532	333,847
Deferred revenue	186,825	185,886
Long-term debt	625,403	630,358
Deferred tax liabilities	53,809	51,042
Other long-term liabilities	21,288	20,474
Total liabilities	1,209,857	1,221,607
Stockholders' equity:
Common stock, $0.001 par value per share: 150,000,000 shares authorized, 49,437,051 and 48,845,352 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	49	49
Additional paid-in capital	584,979	585,179
Treasury stock at cost, 4,170,867 and 4,305,221 shares at March 31, 2018 and December 31, 2017, respectively	(107,521)	(111,093)
Accumulated other comprehensive loss	(4,567)	(4,503)
Accumulated deficit	(187,126)	(194,996)
Total stockholders' equity	285,814	274,636
Total liabilities and stockholders' equity	$ 1,495,671	$ 1,496,243

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 1,548	$ 1,454
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	49,437,051	48,845,352
Common stock, shares outstanding (in shares)	49,437,051	48,845,352
Treasury stock (in shares)	4,170,867	4,305,221

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net income	$ 4,576	$ 6,518
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,514	18,433
Stock based compensation	5,774	5,557
Deferred income taxes	1,713	5,674
Amortization of debt issuance costs and other	3,771	3,697
Loss on sale of assets	12	0
Asset impairment	93	143
Changes in operating assets and liabilities:
Accounts receivable, net	(1,740)	2,985
Prepaid expenses and other assets	(8,009)	(6,868)
Deferred expenses	(764)	(1,694)
Accounts payable	(1,570)	(6,156)
Accrued expenses and other liabilities	(838)	2,583
Accrued compensation and benefits	(2,294)	(5,286)
Deferred revenue	8,927	7,602
Net cash provided by operating activities	27,165	33,188
Cash flows from investing activities
Business acquisitions, net of cash acquired	(18)	(8,587)
Capital expenditures	(5,015)	(5,179)
Net cash used in investing activities	(5,033)	(13,766)
Cash flows from financing activities
Stock issuance costs	(1)	(3)
Common stock repurchased	(3,632)	(3,360)
Payments of long-term debt	0	(2,438)
Payments of revolving credit facility	(14,000)	0
Proceeds from exercise of stock options	1,229	4,416
Deferred consideration payment	(22,000)	(18,933)
Proceeds from borrowings on revolving credit facility	14,000	7,000
Common stock purchases under stock repurchase plan	0	(2,081)
Net cash used in financing activities	(24,404)	(15,399)
Effect of exchange rate changes on cash	(43)	(2)
Net (decrease) increase in cash, cash equivalents and restricted cash	(2,315)	4,021
Cash, cash equivalents and restricted cash, beginning of period	16,886	25,773
Cash, cash equivalents and restricted cash, end of period	14,571	29,794
Supplemental cash flow information
Interest paid	5,640	4,961
Income taxes paid, net	$ 387	$ 361

The Company and Summary of Sign

The Company and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company and Summary of Significant Accounting Policies	The Company and Summary of Significant Accounting Policies Description of Company Web.com Group, Inc. ("Web.com" or the "Company") provides a full range of Internet services to small businesses to help them compete and succeed online. Web.com meets the needs of small businesses anywhere along their lifecycle with affordable, subscription-based solutions including domains and related security products, hosting, website design and management, search engine optimization, online marketing campaigns, local sales leads, social media, mobile products and eCommerce solutions sold through three sales channel groupings. Those sales channel groupings are referred to herein as retail, premium services and Web.com for enterprise. Each of these sales channel groupings generally corresponds to size and needs of the Company's customer base, with the retail channel grouping generally servicing smaller businesses or individual customers, premium services channel grouping generally servicing larger businesses with marketing budgets and Web.com for enterprise sales channel generally servicing multi-location or franchisor/franchisee customers. For more information about the Company, please visit http://www.web.com. The information obtained on or accessible through the Company's website is not incorporated into this Quarterly Report on Form 10-Q and you may not consider it a part of this Quarterly Report on Form 10-Q. The Company has reviewed the criteria of Accounting Standards Codification ("ASC") 280-10, Segment Reporting, and has determined that the Company is comprised of only one segment, web services and products. On January 31, 2017, the Company acquired 100% of the equity interests of Dattatec.com SRL ("DonWeb.com or DonWeb"), a hosting and domain registration company catering to the Spanish-speaking market, located in Rosario, Argentina and on November 1, 2017, the Company acquired certain assets and liabilities of Acquisio, Inc., ("Acquisio") a provider of online advertising management. See Note 3, Business Combinations , for additional information surrounding the acquisitions. Basis of Presentation The accompanying consolidated balance sheet as of March 31, 2018 , the consolidated statements of comprehensive income for the three months ended March 31, 2018 and 2017 , the consolidated statements of cash flows for the three months ended March 31, 2018 and 2017 , and the related notes to the consolidated financial statements are unaudited. The unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2017 , except that certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or excluded as permitted. In the opinion of management, the unaudited consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of the Company’s financial position as of March 31, 2018 , the Company’s results of operations and the cash flows for the three months ended March 31, 2018 and 2017 . The results of operations for the three months ended March 31, 2018 , are not necessarily indicative of the results to be expected for the year ending December 31, 2018 . The Company's results of operations and cash flows include Donweb.com and Acquisio from the acquisition date through the respective period end dates. Pursuant to the rules and regulations of the SEC, certain information and disclosures normally included in the notes to the annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been omitted from these interim financial statements. These financial statements should be read in conjunction with the audited financial statements and the notes included in the Company's most recent annual report on Form 10-K filed with the SEC on February 23, 2018, and any subsequently filed current reports on Form 8-K. Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Cash and Cash Equivalents Cash and cash equivalents include cash on hand and bank demand deposit accounts. For purposes of presentation in the Consolidated Balance Sheets, the Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. Short term restricted cash of $0.3 million as of March 31, 2018 and December 31, 2017 is included in other current assets. Long term restricted cash of $4.6 million as of March 31, 2018 and December 31, 2017 is included in other long-term assets. The restricted cash is primarily to collateralize letters of credit in support of leases. Cost of Revenue and Operating Expenses Cost of Revenue Cost of revenue consists of expenses related to compensation of our web page development staff, domain name registration costs, directory listing fees, eCommerce store design, online marketing costs for services provided, billing costs, hosting expenses, and allocated occupancy overhead costs. The Company allocates occupancy overhead costs such as rent and utilities to all departments based on headcount. Accordingly, general overhead expenses are reflected in each cost of revenue and operating expense category. Sales and Marketing Expense The Company's direct marketing expenses include the costs associated with the online marketing channels used to promote our services and acquire customers. These channels include search marketing, affiliate marketing and partnerships. Sales and marketing costs consist primarily of compensation and related expenses for our sales and marketing staff as well as our customer support staff and allocated occupancy overhead costs. Costs to acquire contracts where the average customer life is greater than one year is deferred and recognized over the average customer life. Sales and marketing expenses also include marketing programs, such as advertising, corporate sponsorships and other corporate events and communications. Technology and development Technology and development represents costs associated with creation, development and distribution of our products and websites. Technology and development expenses primarily consist of headcount-related costs associated with the design, development, deployment, testing, operation, enhancement of our products and costs associated with the data centers and all systems infrastructure costs supporting those products as well as all administrative platforms and allocated occupancy overhead costs. General and Administrative Expense General and administrative expenses consist of compensation and related expenses for executive, finance, and administration, as well as professional fees, corporate development costs, other corporate expenses, and allocated occupancy overhead costs. Depreciation and Amortization Expense Depreciation and amortization expenses relate primarily to the Company's intangible assets recorded due to the acquisitions it has completed, as well as depreciation expense from computer and other equipment, internally developed software, furniture and fixtures, and building and improvement expenditures. Foreign Currency Translation The functional currency of the Company’s Argentinian DonWeb operations and its United Kingdom-based operations is the Argentina Peso and British Pound, respectively. The Company translates the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, historical rates of exchange for equity and average rates of exchange for revenues, costs, and expenses. Translation gains and losses are recorded in accumulated other comprehensive loss as a component of stockholders’ equity. In addition, the Company’s foreign operations include a customer service center, technology center and an outbound sales center in Canada as well as a technology center in Buenos Aires, Argentina. The Company records foreign currency transaction gains and losses, and remeasurement of local currencies of these foreign subsidiaries where the functional currency is different from the local foreign currency in the consolidated statements of comprehensive income. New Accounting Standards Recently Adopted Accounting Standards In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10), which addresses certain aspects of the recognition, measurement, presentation and disclosure of financial instruments. The Company adopted the standard and did so without material impact. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, addressing eight specific cash flow issues in an effort to reduce diversity in practice. The amended guidance is effective for fiscal years beginning after December 31, 2017, and for interim periods within those years. The Company early adopted this standard in fiscal 2017 with no impact. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory, which requires that entities recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. The Company adopted the standard in fiscal 2017 and did so without material impact. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The amended guidance is effective for fiscal years beginning after December 31, 2017, and for interim periods within those years. The Company elected to early adopt this standard in fiscal 2017 and has restated the statement of cash flows for the earliest period presented to conform with the retrospective application of the standard. There was no impact on the net change in cash, cash equivalents, and restricted cash in the statement of cash flows for the earliest period presented. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The new guidance clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company beginning after January 1, 2018, including interim periods within those periods. The Company adopted this standard in fiscal 2017 and did so without material impact. In May 2017, the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting. The new guidance amends the scope of modification accounting for share-based payment arrangements and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. The Company adopted the standard and did so without material impact. In February 2018, the FASB issued ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income that allows entities to reclassify from accumulated other comprehensive income to retained earnings stranded tax effects resulting from the Act. The Company adopted this standard without material impact. In May 2014, the FASB and International Accounting Standards Board ("IASB") issued ASU 2014-09 Revenue from Contracts with Customers (Topic 606), a converged standard on revenue recognition which supersedes previous revenue recognition guidance. Some of the main areas of transition to the new standard include, among others, transfer of control (revenue is recognized when a customer obtains control of a good or service), allocation of transaction price is based on relative standalone selling price (entities that sell multiple goods or services in a single arrangement must allocate the consideration to each of those goods or services), contract costs (entities sometimes incur costs, such as sales commissions or mobilization activities, to obtain or fulfill a contract), and disclosures (extensive disclosures are required to provide greater insight into both revenue that has been recognized, and revenue that is expected to be recognized in the future from existing contracts). In August 2015, the FASB issued ASU 2015-14 Revenue from Contracts with Customers (Topic 606), Deferral of the Effective Date, which defers the effective date of the new standard by one year, resulting in the new standard being effective for fiscal years, and interim periods within those years, beginning after December 15, 2017 with early adoption as of the original effective date permitted. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) and in April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing. Further in May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients. These standards clarify the guidance in ASU 2014-09 and have the same effective date as the original standard. The Company has completed its initial evaluation of its customer contracts and related costs to acquire and fulfill contracts. The Company has elected to apply the standard using a modified retrospective approach with the cumulative effect of initially applying the standard recognized at the date of initial application inclusive of certain additional disclosures, as permitted under Topic 606. Refer to Note 2, Revenues , for further information on the impact of adoption. Accounting Standards Issued Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to recognize on the balance sheet a right-of-use asset, representing their right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. ASU 2016-02 is effective for the Company beginning January 1, 2019 and the Company is currently evaluating the impact that ASU 2016-02 will have on its consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The new guidance requires only a one-step quantitative impairment test, whereby a goodwill impairment loss will be measured as the excess of a reporting unit’s carrying amount over its fair value (not to exceed the total goodwill allocated to that reporting unit). It eliminates Step 2 of the current two-step goodwill impairment test, under which a goodwill impairment loss is measured by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. For public companies, the amended guidance is effective for the Company beginning after January 1, 2020. The adoption of this standard is not expected to have a material impact on its consolidated financial statements or disclosures. In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities From Equity (Topic 480) And Derivatves And Hedging (Topic 815): Accounting For Certain Financial Instruments With Down Round Features, Replacement of the Indefinite Deferral For Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests With a Scope Exception. The new guidance changes the classification of certain equity-linked financial instruments (or embedded features) with down round features. The amendments also clarify existing disclosure requirements for equity-classified instruments. For freestanding equity-classified financial instruments, the amendments require entities that present earnings per share (EPS) in accordance with Topic 260, Earnings Per Share, to recognize the effect of the down round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down round features would be subject to the specialized guidance for contingent beneficial conversion features (in Subtopic 470-20, Debt—Debt with Conversion and Other Options), including related EPS guidance (in Topic 260). The amendments in Part II of this Update recharacterize the indefinite deferral of certain provisions of Topic 480, Distinguishing Liabilities from Equity, that now are presented as pending content in the Codification, to a scope exception. Those amendments do not have an accounting effect. Part I of the new guidance affects any entity that issues financial instruments that include down round features. The amendments in Part I of this Update that relate to the recognition, measurement, and earnings per share of certain freestanding equity-classified financial instruments that include down round features affect entities that present earnings per share in accordance with the guidance in Topic 260, Earnings Per Share. Part I is effective for the Company beginning January 1, 2019 and Part II did not require transition guidance as the amendment did not have an accounting effect. The adoption of this standard is not expected to have a material impact on its consolidated financial statements or disclosures. In January 2018, the FASB released guidance on the accounting for tax on the global intangible low-taxed income ("GILTI") provisions of the Tax Cuts and Jobs Act (the "Act"). The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The Act indicates that either accounting for deferred taxes related to GILTI inclusions or to treat any taxes on GILTI inclusions as period cost are both acceptable methods subject to an accounting policy election. The Company is in the process of evaluating the impact of the GILTI provisions.

Revenues Revenues

Revenues Revenues	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenues	Revenues On January 1, 2018, the Company adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under Topic 605. The Company recorded a net increase to opening retained earnings of $3.3 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606 related to capitalizing the commission costs of acquiring contracts. When the amortization period is greater than one year, commission costs are deferred and amortized on a straight-line basis over the average life of the customer, which includes renewal periods. Revenue Recognition Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The Company currently derives a substantial majority of its revenue from fees associated with our subscription services, which generally include web services, online marketing, eCommerce, and domain name registration offerings. Customers are billed for the subscription on a monthly, quarterly, semi-annual, annual or multi-year basis, at the customer's option. For all of the Company’s customers, regardless of the method the Company uses to bill them, subscription revenue is recorded as deferred revenue in the accompanying consolidated balance sheets. As services are performed, the Company recognizes subscription revenue on a daily basis over the applicable service period. When the Company provides a free trial period, the Company does not begin to recognize subscription revenue until the trial period has ended and the customer has been billed for the services. The Company offers certain integrated online marketing services where the fee charged to the customer includes a media budget (”Pay-Per-Click” or “PPC”). Generally, revenue for PPC services are recognized ratably over the period of service. For these customers, revenue is recognized each time an ad is displayed. For ads placed, the Company evaluates whether it is the principal or agent. Generally, advertising revenues for ads placed are reported on a gross basis, that is, the amounts billed to customers are recorded as revenues, and amounts paid are recorded as costs of revenues. The Company is the principal because it controls the advertising inventory before it is transferred to our customers. Our control is evidenced by our ability to monetize the advertising inventory, being primarily responsible to our customers, having discretion in establishing pricing, or a combination of these. Professional services revenues are generated from custom website design, eCommerce store design and support services. Our custom website design and eCommerce store design work is typically billed on a fixed-price basis and over very short periods. Generally, revenue for design services is recognized over time based on the proportion of the design services completed. Revenue for support services is billed on a time basis and recognized over the time as the services are performed. The Company offers products whereby control of the product passes to the customer when delivered and revenue is recognized at the time of delivery. These products represent approximately five percent of total revenue. Arrangements with Multiple Performance Obligations Our contracts with customers may include multiple performance obligations. For such arrangements, we allocate the contract's transaction price to each distinct performance obligation based upon our best estimate of the standalone selling price of each distinct performance obligation in the contract. We generally determine standalone selling prices based on the prices charged to customers when products are purchased separately, as well as on our overall pricing objectives. Deferred Revenues For all of the Company’s customers, regardless of the method the Company uses to bill them, subscription revenue is recorded as deferred revenue in the accompanying consolidated balance sheets. The increase in the deferred revenue balance for the three months ended March 31, 2018 is primarily driven by cash payments received or due in advance of satisfying our performance obligations, offset by $89.3 million of revenues recognized that were included in the deferred revenue balance at the beginning of the period. Our payment terms vary by the type and location of our customer and the products or services offered. The term between invoicing and when payment is due is not significant. For certain products or services and customer types, we require payment before the products or services are delivered to the customer. Deferred Costs to Acquire and Fulfill Contracts Sales commissions earned by the Company's sales force are considered incremental and recoverable costs of acquiring a contract with a customer. Sales commissions for initial contracts where the average customer life is greater than one year are deferred and then amortized on a straight-line basis over the period of benefit with the period of benefit ranging from thirteen months up to 72 months. The Company determined the period of benefit by taking into consideration the average life of our customer contracts including renewals, its technology and other factors. Sales commissions for renewal contracts are deferred as contract assets and classified as either other current or non-current assets and then amortized on a straight-line basis over the remaining benefit period. Costs to acquire contracts included in deferred expenses amounted to approximately $5.3 million at March 31, 2018 and the related amortization thereof is primarily included in sales and marketing expense in the accompanying condensed consolidated statements of operations. Deferred costs to fulfill contracts generally consist of domain registration costs which have been paid to a domain registry. These costs are deferred and amortized over the life of the domain which generally ranges from one to five years. Costs to fulfill contracts included in deferred expenses amounted to approximately $109.4 million at March 31, 2018. Amortization expense is primarily included in cost of revenue, excluding depreciation and amortization. Total amortization expense was approximately $24.4 million and no impairment losses were recognized in the three months ended March 31, 2018 . Practical Expedients and Exemptions The Company expenses sales commissions for those commission plans where the amortization period would have been one year or less. These costs are recorded within sales and marketing expenses. The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed. Sales and usage-based taxes are excluded from revenues and no amounts have been adjusted for significant financing components if payments is received and performance obligation is transferred within the year. The following table disaggregates our revenue by major sales channel groupings (in thousands). Three months ended March 31, 2018 Three months ended March 31, 2017 Retail $ 121,063 $ 124,268 Premium Services 44,558 42,623 Web.com for Enterprise 21,120 18,227 Total Revenues $ 186,741 $ 185,118 In accordance with the new revenue standard requirements, the disclosure of the impact of adoption on our Consolidated Statement of Comprehensive Income and Consolidated Balance Sheets was as follows (in thousands): Three months ended March 31, 2018 As Reported Amounts Without the Adoption of ASC 606 Effect of Change Consolidated Statements of Comprehensive Income Sales and marketing 51,579 51,770 (191 ) As of March 31, 2018 As Reported Amounts Without The Adoption of ASC 606 Effect of Change Balance Sheet Assets Deferred expenses, current $ 65,444 $ 64,134 $ 1,310 Deferred expenses, noncurrent $ 49,262 $ 46,016 $ 3,246 Liabilities Deferred tax liabilities $ 53,809 $ 52,683 $ 1,126 Equity Accumulated deficit $ (187,126 ) $ (190,556 ) $ 3,430 The opening and closing balances of the Company's accounts receivable, contract assets and deferred revenues are as follows (in thousands): Accounts Receivable Deferred Expenses (Including Contract Assets) Deferred Revenue Opening Balance as of December 31, 2017 $ 25,424 109,583 $ 419,460 Increase, net 1,736 5,123 8,794 Ending balance as of March 31, 2018 $ 27,160 114,706 $ 428,254

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Business Combinations	Business Combinations Acquisition of Acquisio, Inc. On November 1, 2017, the Company acquired certain assets and liabilities of Acquisio, Inc., a provider of online advertising management. The Company paid approximately $8.7 million from acquisition closing through March 31, 2018 and the Company may pay additional consideration of up to approximately $0.6 million , subject to certain indemnification provisions. Transaction costs associated with the acquisition were not significant. The Company has accounted for the acquisition using the acquisition method as required by ASC 805, Business Combinations . As such, preliminary fair values have been assigned to the assets acquired and liabilities assumed and the excess of the total purchase price over the fair value of the net assets acquired is recorded as goodwill. The Company, with the assistance of independent valuation professionals, has also performed preliminary estimates of the fair value of certain intangible assets. The goodwill recorded from this acquisition represents business benefits the Company anticipates realizing from acquiring the entity, and the amount is expected to be deductible for income tax purposes. The following table summarizes the Company's purchase price allocation based on the fair values of the assets acquired and the liabilities assumed (in thousands): December 31, 2017 Adjustments to Opening Balance Sheet March 31, 2018 Tangible current assets $ 130 $ — $ 130 Property plant and equipment 376 — 376 Domain/Trade names 401 — 401 Developed Technology 2,698 — 2,698 Customer relationships 1,908 — 1,908 Other assets — 642 642 Goodwill 4,264 — 4,264 Current liabilities (274 ) — (274 ) Deferred revenue (93 ) — (93 ) Other long term liabilities (129 ) (642 ) (771 ) Purchase price consideration $ 9,281 $ — $ 9,281 The customer relationships and developed technology will be amortized over four years and ten years, respectively. The domain and trade names are indefinite-lived intangible assets and are not amortized. Acquisition of DonWeb On January 31, 2017, the Company acquired 100% of the outstanding shares of DonWeb, a hosting and domain registration company catering to the Spanish-speaking market, located in Rosario, Argentina. The Company paid approximately $8.6 million at closing. The Company may pay the seller additional consideration of up to $2.0 million on January 31, 2021, present valued to $1.7 million as of the acquisition date subject to certain indemnification provisions, for total consideration of $10.3 million . In addition, the agreement includes a four -year earnout provision that entitles the seller up to $3.0 million of consideration contingent upon the post-acquisition business performance and employment. Earnout amounts are recorded as compensation expense. Transaction costs associated with the acquisition were not significant. The Company has accounted for the acquisition using the acquisition method as required by ASC 805, Business Combinations . As such, fair values have been assigned to the assets acquired and liabilities assumed and the excess of the total purchase price over the fair value of the net assets acquired is recorded as goodwill. The Company, with the assistance of independent valuation professionals, has also performed preliminary estimates of the fair value of certain intangible assets. The goodwill recorded from this acquisition represents business benefits the Company anticipates realizing from acquiring an entity in the Spanish-speaking market, and is not expected to be deductible for income tax purposes. In connection with the acquisition, the Company recorded approximately $4.0 million of liabilities arising from pre-acquisition matters that are more likely than not to be sustained upon examination, inclusive of interest and penalties for which the Company is indemnified. The following table summarizes the Company's purchase price allocation based on the fair values of the assets acquired and the liabilities assumed (in thousands): As of March 31, 2018 Tangible current assets $ 1,071 Property plant and equipment 2,344 Domain/Trade names 990 Non-competes 236 Customer relationships 1,720 Other non current assets 2,811 Goodwill 10,568 Current liabilities (1,738 ) Deferred revenue (1,584 ) Other long term liabilities (6,070 ) Purchase price consideration $ 10,348 The non-competes and customer relationships are being amortized over four years and three years, respectively. The domain and trade names are indefinite-lived intangible assets and are not amortized.

Net Income Per Common Share

Net Income Per Common Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Net Income Per Common Share	Net Income Per Common Share Basic net income per common share is calculated using net income and the weighted-average number of shares outstanding during the reporting period. Diluted net income per common share includes the effect from the potential issuance of common stock, such as common stock issued pursuant to the exercise of stock options or vesting of restricted shares. The Company issues equity awards with performance, service and market conditions. These awards are included in basic shares outstanding once all criteria have been met and the shares have vested. Prior to the end of the vesting period, the number of contingently issuable shares included in diluted EPS is based on the number of shares, if any, that would be issuable under the terms of the arrangement if the end of the reporting period were the end of the contingency period, using the treasury stock method and assuming the result would be dilutive. See Note 12, Stock-Based Compensation and Stockholders' Equity , for additional information on this award. During the three months ended March 31, 2018 and 2017 , 2.8 million and 2.7 million share-based awards, respectively, have been excluded from the calculation of diluted common shares because including those securities would have been anti-dilutive. The Company's potentially dilutive shares also include incremental shares issuable upon the conversion of the Company's Senior Convertible Notes due August 15, 2018 ("2018 Notes"). See Note 7, Long-term Debt , for additional information regarding the 2018 Notes. Upon conversion or maturity of the 2018 Notes, the Company may settle the notes with either cash, shares of its common stock or a combination of cash and shares of its common stock, at its election. The Company has adopted a current policy to settle the principal amount in cash and any excess conversion value in shares of our common stock. Because the principal amount of the 2018 Notes will be settled in cash upon conversion, only the conversion spread relating to the 2018 Notes is included in our calculation of diluted net income per common share. When the market price of the Company's stock exceeds the conversion price, as applicable, it will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued upon conversion using the treasury stock method. There were no incremental common shares from the 2018 Notes that were included in the calculation of diluted shares because the Company's average price of its common stock did not exceed the conversion price during the three months ended March 31, 2018 and 2017 . The following table sets forth the computation of basic and diluted net income per common share (in thousands, except per share amounts): Three months ended March 31, 2018 2017 Net income $ 4,576 $ 6,518 Basic weighted average common shares outstanding 47,481 49,076 Dilutive effect of stock options 1,044 1,282 Dilutive effect of restricted shares 498 426 Dilutive effect of performance shares 43 16 Diluted weighted average common shares outstanding 49,066 50,800 Net income per basic common share $ 0.10 $ 0.13 Net income per diluted common share $ 0.09 $ 0.13

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets In accordance with ASC 350, the Company reviews goodwill and other indefinite-lived intangible asset balances for impairment on an annual basis and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of goodwill or indefinite-lived intangible assets below its carrying amount. As of December 31, 2017 , the Company completed its annual impairment test of goodwill and other indefinite-lived intangible assets and determined that there was no impairment. There were no indicators of impairment during the three months ended March 31, 2018 . The following table summarizes changes in the Company’s goodwill balances as required by ASC 350-20 for the three months ended March 31, 2018 and the year ended December 31, 2017 , respectively (in thousands): March 31, December 31, Goodwill balance at beginning of period $ 987,956 $ 974,045 Accumulated impaired goodwill at beginning of period (102,294 ) (102,294 ) Goodwill balance at beginning of period, net $ 885,662 871,751 Goodwill acquired during the period- DonWeb- Note 3, Business Combinations — 10,568 Goodwill acquired during the period- Acquisio - Note 3, Business Combinations — 4,264 Foreign currency translation adjustments (405 ) (921 ) Goodwill balance at end of period, net * $ 885,257 $ 885,662 * Gross goodwill balances were $987.6 million as of March 31, 2018 and $988.0 million as of December 31, 2017 . These include accumulated impairment losses of $102.3 million . The Company’s intangible assets are summarized as follows (in thousands): March 31, 2018 Gross Carrying Amount Accumulated Amortization Net Weighted-average Remaining Amortization Period in Years Indefinite-lived intangible assets: Domain/Trade names $ 161,275 $ — $ 161,275 Definite-lived intangible assets: Customer relationships 327,181 (192,146 ) 135,035 5.3 Developed technology 283,391 (220,659 ) 62,732 4.0 Other 8,724 (8,428 ) 296 1.4 Total * $ 780,571 $ (421,233 ) $ 359,338 * Cumulative foreign currency translation adjustments, reflecting the movement in currencies, had minimal effect on total intangible assets at of March 31, 2018 . December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Weighted-average Remaining Amortization Period in Years Indefinite-lived intangible assets: Domain/Trade names $ 161,251 $ — $ 161,251 Definite-lived intangible assets: Customer relationships 327,176 (185,353 ) 141,823 5.6 Developed technology 283,319 (215,545 ) 67,774 4.2 Other 8,673 (7,950 ) 723 1.0 Total * $ 780,419 $ (408,848 ) $ 371,571 *Cumulative foreign currency translation adjustments, reflecting the movement in currencies, decreased total intangible assets by approximately $0.2 million as of December 31, 2017. The weighted-average amortization period for the amortizable intangible assets remaining as of March 31, 2018 is approximately 4.9 years. Total amortization expense was $12.2 million and $12.9 million for the three months ended March 31, 2018 and 2017 , respectively. As of March 31, 2018 , the amortization expense for the remainder of the year ended December 31, 2018 , and the next five years and thereafter is as follows (in thousands): 2018 (remainder of year) $ 33,578 2019 41,873 2020 39,235 2021 38,308 2022 26,667 2023 17,067 Thereafter 1,335 Total $ 198,063

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Effective February 6, 2015, the Company elected Mr. John A. Giuliani to serve on its Board of Directors. Mr. Giuliani serves as President, Chief Executive Officer and Director of Conversant, a subsidiary of Alliance Data Systems Corporation, a personalized digital marketing platform. The Company incurred no significant expense and $0.2 million of expense related to services provided by Conversant during the three months ended March 31, 2018 and 2017, respectively.

Long-term Debt

Long-term Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Long-term Debt	Long-Term Debt 1% Senior Convertible Notes due August 15, 2018 In August 2013, the Company issued $258.8 million aggregate principal amount of 1.00% Senior Convertible Notes due August 15, 2018 (the "2018 Notes"). The 2018 Notes bear interest at a rate of 1.00% per year, payable semiannually in arrears, on February 15 and August 15 of each year, beginning on February 15, 2014. The conversion price for the 2018 Notes is equivalent to an initial effective conversion price of approximately $35.00 per share of common stock. Proceeds, net of original issuance discounts and debt issuance costs, of $252.3 million were received from the 2018 Notes. The net proceeds were used to pay down $208.0 million of the First Lien Term Loan and $43.0 million of the Revolving Credit Facility. On or after August 20, 2016 , the Company may redeem for cash any or all of the 2018 Notes, at its option, if the last reported sale price of its common stock exceeds 130% of the applicable conversion price on each applicable trading day as defined by the indenture. The redemption price will equal 100% of the principal amount of the 2018 Notes to be redeemed, plus accrued and unpaid interest to, but not including, the redemption date. Holders of the 2018 Notes may also convert their notes at any time prior to May 15, 2018 if the sale price of the Company's common stock exceeds 130% of the applicable conversion price on each applicable trading day as defined by the indenture. In addition, holders may also convert their 2018 Notes any time prior to May 15, 2018 , (i) if during the five business days after any five consecutive trading day period in which the trading price of the 2018 Notes was less than 98% of the product of the last reported sale price of the Company's common stock and the conversion rate, (ii) if the Company calls the 2018 Notes for redemption; or (iii) upon the occurrence of specified corporate events. The 2018 Notes are senior unsecured obligations and will be effectively junior to any of the Company's existing and future secured indebtedness. The Company determined that the embedded conversion option in the 2018 Notes is not required to be separately accounted for as a derivative under ASC 815, Derivatives and Hedging . The 2018 Notes are within the scope of ASC 470, Topic 20, Debt with Conversion and Other Options, which requires the Company to separate a liability component and an equity component from the proceeds received. The carrying amount of the liability component at the time of the transaction of $204.4 million was calculated by measuring the fair value of a similar debt instrument that does not have an associated equity component. The fair value of the liability component was subtracted from the initial proceeds and the remaining amount of $47.8 million was recorded as the equity component. The excess of the principal amount of the liability component over its carrying amount will be amortized to interest expense over the expected life of 5 years using the effective interest method. Upon conversion or maturity of the 2018 Notes, the Company may settle the notes with either cash, shares of its common stock or a combination of cash and shares of its common stock, at its election. The Company has adopted a current policy to settle the $258.8 million of principal amount in cash and any excess conversion value in shares of its common stock. Because the principal amount of the 2018 Notes will be settled in cash upon conversion, only the conversion spread relating to the 2018 Notes may be included in the Company's calculation of diluted net income per common share. When the market price of the Company's stock exceeds the conversion price, it will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued upon conversion using the treasury stock method. As such, the 2018 Notes have no impact on diluted net income per common share until the price of the Company's common stock exceeds the conversion price (approximately $35.00 per common share) of the 2018 Notes. As of March 31, 2018 and December 31, 2017 , the carrying value of the debt and equity component was $254.1 million and $47.8 million and $251.0 million and $47.8 million , respectively. The unamortized debt discount of $4.6 million as of March 31, 2018 will be amortized over the remaining life of five months using the effective interest method. The Company has included $10.6 million of the 2018 Notes as current debt based upon our intent and ability to refinance these obligations. Credit Agreement On February 11, 2016, the Company entered into an amendment (the "Amendment") to that certain Credit Agreement, dated as of September 9, 2014 (the "Existing Credit Agreement" and as amended by the Amendment, the "Amended Credit Agreement"), by and among the Company, the several lenders from time to time parties thereto, and JPMorgan Chase Bank, N.A., as administrative agent. On March 9, 2016 (the "Closing Date"), the amended Credit Agreement became effective following the completion of the acquisition of Yodle Inc. (the "Acquisition"). On May 18, 2017, the Company entered into a second amendment to the Credit Agreement ("Second Amendment"). The Amended Credit Agreement provided (i) $390.0 million of five -year secured term loans, replacing and refinancing $190.0 million of secured term loans outstanding under the Existing Credit Agreement and providing for an additional $200.0 million of secured term loans (the "Term Loan") and (ii) a five -year secured revolving credit facility that provides up to $150.0 million of revolving loans (the "Revolving Credit Facility"), which replaces the revolving credit facility under the Existing Credit Agreement. On the Closing Date, the Company used the proceeds of the Term Loan and borrowed $115.0 million of loans under the Revolving Credit Facility, together with cash on hand, to complete the Acquisition. The Second Amendment to the Credit Agreement provided an incremental $ 50.0 million of secured Term Loan and an incremental $ 110.0 million of borrowing capacity on the Revolving Credit Facility with maturity dates that were commensurate with the Amended Credit Agreement. The Company used the proceeds from the incremental Term Loan to repay the then outstanding amount drawn on the Revolving Credit Facility at the date of closing. The Term Loan and loans under the Revolving Credit Facility initially bore interest at a rate equal to either, at the Company’s option, the LIBOR rate plus an applicable margin equal to 3.00% per annum, or the prime lending rate plus an applicable margin equal to 2.00% per annum. The applicable margins for the Term Loan and loans under the Revolving Credit Facility are subject to reduction or increase based upon the Company’s consolidated first lien net leverage ratio as of the end of each fiscal quarter. The Company must also pay (i) a commitment fee of 0.40% per annum on the actual daily amount by which the revolving credit commitment exceeds then-outstanding usage under the Revolving Credit Facility, also subject to reduction or increase based upon the Company’s consolidated first lien net leverage ratio, (ii) a letter of credit fee equal to the applicable margin that applies to LIBOR loans under the Revolving Credit Facility and (iii) a fronting fee of 0.125% per annum, calculated on the daily amount available to be drawn under each letter of credit issued under the Revolving Credit Facility. The Company is permitted to make voluntary prepayments with respect to the Revolving Credit Facility and the Term Loan at any time without payment of a premium. The Company is required to make mandatory prepayments of the Term Loan with (i) net cash proceeds from certain asset sales (subject to reinvestment rights) and (ii) net cash proceeds from certain issuances of debt. The Company is also required to maintain certain financial ratios under the Credit Agreement and there are customary covenants that limit the incurrence of debt, the payment of dividends, the disposition of assets, and making of certain payments. Substantially all of the Company's and certain of its domestic subsidiaries' tangible and intangible assets are pledged as collateral under the Credit Agreement. Both of the aforementioned amendments were accounted for as a modification of the credit agreement and as a result, $1.9 million of additional loan origination discounts and bank lender fees were capitalized during the second quarter ended June 30, 2017 and $5.7 million during the first quarter ended March 31, 2016. The Company has $248.1 million of available borrowings under the Revolving Credit Facility as of March 31, 2018 . Outstanding long-term debt and the interest rates in effect at March 31, 2018 and December 31, 2017 consist of the following (in thousands): March 31, December 31, Revolving Credit Facility maturing 2021, 3.99%, based on LIBOR plus 2.25% $ 10,000 $ 10,000 Term Loan due 2021, 4.04% based on LIBOR plus 2.25%, less unamortized discount of $3,495 at March 31, 2018, effective rate of 4.14% 386,239 385,934 Senior Convertible Notes, maturing 2018, 1.00%, less unamortized discount of $4,643 at March 31, 2018, effective rate of 5.88% 254,107 251,036 Total Outstanding Debt 650,346 646,970 Less: Current Portion of Long-Term Debt (24,943 ) (16,612 ) Long-Term Portion $ 625,403 $ 630,358 Debt discount and issuance costs The Company recorded $3.4 million and $3.3 million of expense from amortizing debt issuance and discount costs during each of the three months ended March 31, 2018 and 2017 , respectively. Total estimated principal payments due for the next three years as of March 31, 2018 are as follows: Year 1 $ 25,265 Year 2 44,128 Year 3 589,091 Total principal payments $ 658,484

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss were as follows (in thousands): March 31, 2018 December 31, 2017 Foreign currency translation adjustments $ (4,567 ) $ (4,503 ) Total accumulated other comprehensive loss $ (4,567 ) $ (4,503 )

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value	Fair Value The Company defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels as follows: Level 1 -Quoted prices in active markets for identical assets or liabilities. Level 2 -Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 -Inputs that are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. The Company has financial assets and liabilities that are not required to be remeasured to fair value on a recurring basis. The carrying value of the Company’s cash and cash equivalents, accounts receivable, accounts payable, deferred consideration and accrued expenses approximates fair market value as of March 31, 2018 and December 31, 2017 due to the short maturity of these items. As of March 31, 2018 , the fair value and carrying value of the Company’s 2018 Notes totaled $256.2 million and $254.1 million , respectively. As of December 31, 2017 , the fair value and carrying value of the Company's 2018 Notes was $ 255.3 million and $251.0 million , respectively. The fair value of the 2018 Notes, including the equity component, was calculated by taking the quoted market price for the instruments multiplied by the principal amount. This is based on a Level 2 fair value hierarchy calculation obtained from quoted market prices for the Company’s long-term debt instruments that may not be actively traded at each respective period end. The Revolving Credit Facility and Term Loan are variable rate debt instruments indexed to 1-Month LIBOR that resets monthly and the fair value approximates the carrying value as of March 31, 2018 and December 31, 2017 . See Note 7, Long-term Debt , for additional information surrounding the amendment.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company accounts for income taxes under the provisions of ASC 740, Income Taxes , using the liability method. ASC 740 requires recognition of deferred tax liabilities and assets for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the difference is expected to reverse. The Company recorded income tax expense of $2.2 million and $6.1 million during the three months ended March 31, 2018 and 2017 respectively, based upon the estimated annual effective tax rates for each year. The estimated annual effective tax rate for 2018 and 2017 reflects the impact of net unfavorable permanent book-tax differences, primarily driven by stock compensation costs estimated for the year and an increase in the projected year-end valuation allowance related to certain state and foreign deferred tax assets. On December 22, 2017, the Act was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a federal corporate tax rate decrease from 35% to 21% for tax years beginning after December 31, 2017, the transition of U.S international taxation from a worldwide tax system to a territorial system, and a one-time transition tax on the mandatory deemed repatriation of foreign earnings. We have estimated our provision for income taxes in accordance with the Act and guidance available as of the date of this filing. The effective tax rate for the three months ended March 31, 2018 and 2017 was 32.4% and 48.5% , respectively. The decrease in the effective tax rate was due to the adoption of the Act. On December 22, 2017, Staff Accounting Bulletin No. 118 ("SAB 118") was issued to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Act. Additional work is necessary for a more detailed analysis of our deferred tax assets and liabilities and the transition tax on our historical foreign earnings as well as potential correlative adjustments. Any subsequent adjustment to these amounts will be recorded to tax expense in 2018 when the analysis is complete. The Company recorded as a discrete item a benefit of $0.5 million for the three months ended March 31, 2018 after further evaluation of its review of the transition tax. The Company has not provided an estimate for foreign derived intangible income, as it is still in the process of obtaining the requisite information.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Standby Letters of Credit The Company utilizes letters of credit to back certain payment obligations relating to its facility operating leases. The Company had approximately $ 6.8 million in standby letters of credit as of March 31, 2018 , $ 1.9 million of which were issued under the Revolving Credit Facility. Legal Proceedings On July 13, 2017, the Company was named as a defendant in a lawsuit filed in the United States District Court for the Middle District of Florida. The plaintiff in the case alleges that the Company infringed upon certain copyrights, misappropriated trade secrets, breached contracts, and violated the Florida Deceptive and Unfair Trade Practices Act in connection with the Company’s Ignite products. The plaintiff seeks damages in an unspecified amount, plus the recovery of its costs and attorneys’ fees incurred in the suit. The Company believes that it has meritorious defenses against the asserted claims and is no longer offering the afore mentioned products for sale. A preliminary injunction against the Company was entered and the appeal is pending. The Company has reserved an immaterial amount which it determined to be commensurate with the liability, damage and coverage issues presented by the subject claims at this early stage of the pending lawsuit. It is also not currently possible to reasonably estimate the amount or range of any amounts that the Company may be required to pay as damages in the event that liability is found against the Company in excess of the amount reserved without plaintiff providing more detail on its claims and without expert discovery on the damage and apportionment issues presented by the claims. From time to time, the Company and its subsidiaries receive inquiries from foreign, federal, state and local regulatory authorities or are named as defendants in various investigations, inquires or legal actions that are incidental to our business and arise out of or are related to claims made in connection with our marketing practices, customer and vendor contracts and employment related disputes. We believe that the resolution of these investigations, inquiries or legal actions will not have a material adverse effect on our financial position, marketing practices or results of operations. Indemnifications The Company has agreed to indemnify its directors and executive officers for costs associated with any fees, expenses, judgments, fines and settlement amounts incurred by them in any action or proceeding to which any of them is, or is threatened to be, made a party by reason of his service as a director or officer, including any action by the Company, arising out of his services as the Company’s director or officer or his services provided to any other company or enterprise at the Company’s request. Other The Company is responsible for charging end customers certain taxes in numerous jurisdictions. In the ordinary course of its business, there are many transactions and calculations where the ultimate tax determination is uncertain. In the future, the Company may come under audit, which could result in changes to its tax estimates. The Company routinely assesses these matters and although the Company believes its tax estimates are reasonable, the final determination of tax audits could be materially different than the Company’s estimates, which would result in the Company recording an expense in the period in which a final determination is made.

Stock-Based Compensation and St

Stock-Based Compensation and Stockholders' Equity	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation and Stockholders' Equity	Stock-Based Compensation and Stockholders' Equity The Company records compensation expense for employee and director stock-based compensation plans based upon the fair value of the award in accordance with ASC 718, Compensation-Stock Compensation . Equity Incentive Plans The Company has the 2014 Equity Incentive Plan for the issuance of stock-based compensation, including but not limited to, common stock options and restricted shares to employees. In addition, the Company’s plan provides for grants of non-statutory stock options and restricted shares awards (“RSA’s”) to non-employee directors. The Company issues shares out of treasury stock, if available, upon the exercise of stock options, otherwise new shares of common stock are issued. Restricted shares are issued out of common stock when they are granted. Incentive stock options and non-statutory stock options issued generally vest ratably over three to four years, are contingent upon continued service and expire ten years from the grant date. Restricted share awards generally vest 25 percent each year over a four year period. The Board of Directors or a committee thereof, administers all of the equity incentive plans and establishes the terms of options granted, including the exercise price, the number of shares subject to individual option awards and the vesting period of options, within the limits set forth in the plans. Options have a maximum term of 10 years and vest as determined by the Board of Directors. The Company has additional equity incentive plans that are established in conjunction with its acquisitions. These plans are considered one-time, inducement awards of incentive stock options, non-statutory stock options and restricted shares. Once the inducement awards are granted, no additional shares, including forfeitures and cancellations, are available for future grant under these plans. Performance Shares During the first quarters of 2018 and 2017 , the Compensation Committee of the Board of Directors approved the issuance of performance share equity awards. The targeted number of shares under a 100 percent payout scenario for each of the 2018 and 2017 awards granted are 0.2 million shares, earned over the three year vesting periods, with one-third vesting each year. The actual number of shares that may be earned and issued, if any, may range from 0-200% of the target number of shares granted. The range is based upon (1) the number of shares earned based upon the over achievement or under achievement of the financial measures for the annual performance period and (2) the number of shares earned being adjusted higher or lower depending on the performance of the Company's total shareholder return, compared against the Company's peer group. Compensation expense related to the performance share stock plan for the three months ended March 31, 2018 and 2017 was approximately and $0.5 million and $0.7 million , respectively. The 2017 tranche of the performance share award resulted in a payout of 71% of the target shares, or approximately 113 thousand shares during the first quarter of 2018 . During the three months ended March 31, 2018 , approximately 41 thousand shares totaling $0.7 million were withheld by the Company for income tax withholding requirements. Stock Options Compensation expense related to the Company’s stock option plans was $1.7 million and $2.0 million for the three months ended March 31, 2018 and 2017 , respectively. During the three months ended March 31, 2018 and 2017 , 0.2 million and 0.3 million common shares were issued for options exercised, respectively. During the three months ended March 31, 2018 and 2017 , 0.8 million and 0.8 million options were granted, respectively. The weighted-average grant-date fair value of an option granted during the three months ended March 31, 2018 and 2017 was $6.98 and $8.57 , respectively. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant. Below are the ranges of assumptions used in calculating the fair value of options granted during the following periods: Three months ended March 31, 2018 2017 Risk-free interest rate 2.54% - 2.54% 1.90% - 1.98% Dividend yield N/A N/A Expected life (in years) 4.99 - 4.99 5.05 - 5.05 Volatility 41.47% - 41.47% 44.67% - 44.67% Restricted Stock Compensation expense related to restricted stock plans for the three months ended March 31, 2018 and 2017 , was approximately $3.5 million and $2.8 million , respectively. During the three months ended March 31, 2018 and 2017 , approximately 0.1 million and 0.2 million shares totaling approximately $2.5 million and $3.1 million , respectively, were withheld by the Company for tax withholding requirements. During the three months ended March 31, 2018 and 2017 , 0.6 million and 0.8 million restricted common shares were granted, respectively. The weighted-average grant-date fair value of restricted stock granted during the three months ended March 31, 2018 and 2017 was $22.97 and $20.45 , respectively. Stock Repurchases On November 5, 2014 , the Company's Board of Directors authorized a share repurchase program of up to $100.0 million of the Company's common stock expiring on December 31, 2016. In October 2016, the Company's Board of Directors authorized that the share repurchase program of the Company's outstanding securities be extended through December 31, 2018 and be increased by an additional $100.0 million . The aggregate amount remaining available for repurchase under this program was $33.8 million at March 31, 2018 . Repurchases under the repurchase programs may take place in the open market or in privately negotiated transactions, including structured and derivative transactions such as accelerated share repurchase transactions, and may be made under a Rule 10b5-1 plan. During the three months ended March 31, 2018 the Company did not repurchase any common shares. During the three months ended March 31, 2017 , the Company repurchased approximately 107 thousand common shares for a total of $2.1 million .

Restructuring Restructuring

Restructuring Restructuring	3 Months Ended
	Mar. 31, 2018
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring In March 2018, the Company completed a reorganization of its operations, designed to consolidate operations and rationalize infrastructure. Through this reorganization, the Company eliminated various positions and offered separation agreements to those impacted. During the the three months ended March 31, 2018 , the Company recognized $2.7 million of pre-tax restructuring charges, which will primarily be paid in the second quarter of 2018. No amounts related to the charges were paid as of March 31, 2018 . The Company recorded $0.3 million for the three months ended March 31, 2017 in connection with severance charges.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On April 30, 2018, the Company completed a refinancing of its Credit Agreement and increased both the Term Loan and Revolving Credit Facility to $400.0 million each (the "Facility"), respectively. The Facility has a maturity date of five years from the date of issuance and bears interest at an initial rate of LIBOR plus an 1.75% subject to an adjustment on the applicable margin in the future and an initial unused revolver fee of 0.30% subject to an adjustment in the future of up to 0.40% . The proceeds of which will be utilized to pay the 2018 Notes upon maturity.

The Company and Summary of Si20

The Company and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Company	Description of Company Web.com Group, Inc. ("Web.com" or the "Company") provides a full range of Internet services to small businesses to help them compete and succeed online. Web.com meets the needs of small businesses anywhere along their lifecycle with affordable, subscription-based solutions including domains and related security products, hosting, website design and management, search engine optimization, online marketing campaigns, local sales leads, social media, mobile products and eCommerce solutions sold through three sales channel groupings. Those sales channel groupings are referred to herein as retail, premium services and Web.com for enterprise. Each of these sales channel groupings generally corresponds to size and needs of the Company's customer base, with the retail channel grouping generally servicing smaller businesses or individual customers, premium services channel grouping generally servicing larger businesses with marketing budgets and Web.com for enterprise sales channel generally servicing multi-location or franchisor/franchisee customers. For more information about the Company, please visit http://www.web.com. The information obtained on or accessible through the Company's website is not incorporated into this Quarterly Report on Form 10-Q and you may not consider it a part of this Quarterly Report on Form 10-Q. The Company has reviewed the criteria of Accounting Standards Codification ("ASC") 280-10, Segment Reporting, and has determined that the Company is comprised of only one segment, web services and products. On January 31, 2017, the Company acquired 100% of the equity interests of Dattatec.com SRL ("DonWeb.com or DonWeb"), a hosting and domain registration company catering to the Spanish-speaking market, located in Rosario, Argentina and on November 1, 2017, the Company acquired certain assets and liabilities of Acquisio, Inc., ("Acquisio") a provider of online advertising management. See Note 3, Business Combinations , for additional information surrounding the acquisitions.
Basis of Presentation	Basis of Presentation The accompanying consolidated balance sheet as of March 31, 2018 , the consolidated statements of comprehensive income for the three months ended March 31, 2018 and 2017 , the consolidated statements of cash flows for the three months ended March 31, 2018 and 2017 , and the related notes to the consolidated financial statements are unaudited. The unaudited consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2017 , except that certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or excluded as permitted. In the opinion of management, the unaudited consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of the Company’s financial position as of March 31, 2018 , the Company’s results of operations and the cash flows for the three months ended March 31, 2018 and 2017 . The results of operations for the three months ended March 31, 2018 , are not necessarily indicative of the results to be expected for the year ending December 31, 2018 . The Company's results of operations and cash flows include Donweb.com and Acquisio from the acquisition date through the respective period end dates. Pursuant to the rules and regulations of the SEC, certain information and disclosures normally included in the notes to the annual financial statements prepared in accordance with U.S. generally accepted accounting principles ("GAAP") have been omitted from these interim financial statements. These financial statements should be read in conjunction with the audited financial statements and the notes included in the Company's most recent annual report on Form 10-K filed with the SEC on February 23, 2018, and any subsequently filed current reports on Form 8-K.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash on hand and bank demand deposit accounts. For purposes of presentation in the Consolidated Balance Sheets, the Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. Short term restricted cash of $0.3 million as of March 31, 2018 and December 31, 2017 is included in other current assets. Long term restricted cash of $4.6 million as of March 31, 2018 and December 31, 2017 is included in other long-term assets. The restricted cash is primarily to collateralize letters of credit in support of leases
Cost of Revenue	Cost of Revenue Cost of revenue consists of expenses related to compensation of our web page development staff, domain name registration costs, directory listing fees, eCommerce store design, online marketing costs for services provided, billing costs, hosting expenses, and allocated occupancy overhead costs. The Company allocates occupancy overhead costs such as rent and utilities to all departments based on headcount. Accordingly, general overhead expenses are reflected in each cost of revenue and operating expense category.
Sales and Marketing Expense	Sales and Marketing Expense The Company's direct marketing expenses include the costs associated with the online marketing channels used to promote our services and acquire customers. These channels include search marketing, affiliate marketing and partnerships. Sales and marketing costs consist primarily of compensation and related expenses for our sales and marketing staff as well as our customer support staff and allocated occupancy overhead costs. Costs to acquire contracts where the average customer life is greater than one year is deferred and recognized over the average customer life. Sales and marketing expenses also include marketing programs, such as advertising, corporate sponsorships and other corporate events and communications.
Technology and development	Technology and development Technology and development represents costs associated with creation, development and distribution of our products and websites. Technology and development expenses primarily consist of headcount-related costs associated with the design, development, deployment, testing, operation, enhancement of our products and costs associated with the data centers and all systems infrastructure costs supporting those products as well as all administrative platforms and allocated occupancy overhead costs.
General and Administrative Expense	General and Administrative Expense General and administrative expenses consist of compensation and related expenses for executive, finance, and administration, as well as professional fees, corporate development costs, other corporate expenses, and allocated occupancy overhead costs.
Depreciation and Amortization Expense	Depreciation and Amortization Expense Depreciation and amortization expenses relate primarily to the Company's intangible assets recorded due to the acquisitions it has completed, as well as depreciation expense from computer and other equipment, internally developed software, furniture and fixtures, and building and improvement expenditures.
Foreign Currency Transactions	Foreign Currency Translation The functional currency of the Company’s Argentinian DonWeb operations and its United Kingdom-based operations is the Argentina Peso and British Pound, respectively. The Company translates the financial statements of these subsidiaries to U.S. dollars using month-end rates of exchange for assets and liabilities, historical rates of exchange for equity and average rates of exchange for revenues, costs, and expenses. Translation gains and losses are recorded in accumulated other comprehensive loss as a component of stockholders’ equity. In addition, the Company’s foreign operations include a customer service center, technology center and an outbound sales center in Canada as well as a technology center in Buenos Aires, Argentina. The Company records foreign currency transaction gains and losses, and remeasurement of local currencies of these foreign subsidiaries where the functional currency is different from the local foreign currency in the consolidated statements of comprehensive income.
New Accounting Standards	New Accounting Standards Recently Adopted Accounting Standards In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities (Subtopic 825-10), which addresses certain aspects of the recognition, measurement, presentation and disclosure of financial instruments. The Company adopted the standard and did so without material impact. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, addressing eight specific cash flow issues in an effort to reduce diversity in practice. The amended guidance is effective for fiscal years beginning after December 31, 2017, and for interim periods within those years. The Company early adopted this standard in fiscal 2017 with no impact. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other than Inventory, which requires that entities recognize the income tax consequences of an intra-entity transfer of an asset, other than inventory, when the transfer occurs. The Company adopted the standard in fiscal 2017 and did so without material impact. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The amended guidance is effective for fiscal years beginning after December 31, 2017, and for interim periods within those years. The Company elected to early adopt this standard in fiscal 2017 and has restated the statement of cash flows for the earliest period presented to conform with the retrospective application of the standard. There was no impact on the net change in cash, cash equivalents, and restricted cash in the statement of cash flows for the earliest period presented. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The new guidance clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The new guidance is effective for the Company beginning after January 1, 2018, including interim periods within those periods. The Company adopted this standard in fiscal 2017 and did so without material impact. In May 2017, the FASB issued ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting. The new guidance amends the scope of modification accounting for share-based payment arrangements and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under ASC 718. The Company adopted the standard and did so without material impact. In February 2018, the FASB issued ASU 2018-02, Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income that allows entities to reclassify from accumulated other comprehensive income to retained earnings stranded tax effects resulting from the Act. The Company adopted this standard without material impact. In May 2014, the FASB and International Accounting Standards Board ("IASB") issued ASU 2014-09 Revenue from Contracts with Customers (Topic 606), a converged standard on revenue recognition which supersedes previous revenue recognition guidance. Some of the main areas of transition to the new standard include, among others, transfer of control (revenue is recognized when a customer obtains control of a good or service), allocation of transaction price is based on relative standalone selling price (entities that sell multiple goods or services in a single arrangement must allocate the consideration to each of those goods or services), contract costs (entities sometimes incur costs, such as sales commissions or mobilization activities, to obtain or fulfill a contract), and disclosures (extensive disclosures are required to provide greater insight into both revenue that has been recognized, and revenue that is expected to be recognized in the future from existing contracts). In August 2015, the FASB issued ASU 2015-14 Revenue from Contracts with Customers (Topic 606), Deferral of the Effective Date, which defers the effective date of the new standard by one year, resulting in the new standard being effective for fiscal years, and interim periods within those years, beginning after December 15, 2017 with early adoption as of the original effective date permitted. In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net) and in April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing. Further in May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients. These standards clarify the guidance in ASU 2014-09 and have the same effective date as the original standard. The Company has completed its initial evaluation of its customer contracts and related costs to acquire and fulfill contracts. The Company has elected to apply the standard using a modified retrospective approach with the cumulative effect of initially applying the standard recognized at the date of initial application inclusive of certain additional disclosures, as permitted under Topic 606. Refer to Note 2, Revenues , for further information on the impact of adoption. Accounting Standards Issued Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to recognize on the balance sheet a right-of-use asset, representing their right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. ASU 2016-02 is effective for the Company beginning January 1, 2019 and the Company is currently evaluating the impact that ASU 2016-02 will have on its consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The new guidance requires only a one-step quantitative impairment test, whereby a goodwill impairment loss will be measured as the excess of a reporting unit’s carrying amount over its fair value (not to exceed the total goodwill allocated to that reporting unit). It eliminates Step 2 of the current two-step goodwill impairment test, under which a goodwill impairment loss is measured by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. For public companies, the amended guidance is effective for the Company beginning after January 1, 2020. The adoption of this standard is not expected to have a material impact on its consolidated financial statements or disclosures. In July 2017, the FASB issued ASU 2017-11, Earnings Per Share (Topic 260), Distinguishing Liabilities From Equity (Topic 480) And Derivatves And Hedging (Topic 815): Accounting For Certain Financial Instruments With Down Round Features, Replacement of the Indefinite Deferral For Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests With a Scope Exception. The new guidance changes the classification of certain equity-linked financial instruments (or embedded features) with down round features. The amendments also clarify existing disclosure requirements for equity-classified instruments. For freestanding equity-classified financial instruments, the amendments require entities that present earnings per share (EPS) in accordance with Topic 260, Earnings Per Share, to recognize the effect of the down round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down round features would be subject to the specialized guidance for contingent beneficial conversion features (in Subtopic 470-20, Debt—Debt with Conversion and Other Options), including related EPS guidance (in Topic 260). The amendments in Part II of this Update recharacterize the indefinite deferral of certain provisions of Topic 480, Distinguishing Liabilities from Equity, that now are presented as pending content in the Codification, to a scope exception. Those amendments do not have an accounting effect. Part I of the new guidance affects any entity that issues financial instruments that include down round features. The amendments in Part I of this Update that relate to the recognition, measurement, and earnings per share of certain freestanding equity-classified financial instruments that include down round features affect entities that present earnings per share in accordance with the guidance in Topic 260, Earnings Per Share. Part I is effective for the Company beginning January 1, 2019 and Part II did not require transition guidance as the amendment did not have an accounting effect. The adoption of this standard is not expected to have a material impact on its consolidated financial statements or disclosures. In January 2018, the FASB released guidance on the accounting for tax on the global intangible low-taxed income ("GILTI") provisions of the Tax Cuts and Jobs Act (the "Act"). The GILTI provisions impose a tax on foreign income in excess of a deemed return on tangible assets of foreign corporations. The Act indicates that either accounting for deferred taxes related to GILTI inclusions or to treat any taxes on GILTI inclusions as period cost are both acceptable methods subject to an accounting policy election. The Company is in the process of evaluating the impact of the GILTI provisions.

Revenues Revenues (Tables)

Revenues Revenues (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following table disaggregates our revenue by major sales channel groupings (in thousands). Three months ended March 31, 2018 Three months ended March 31, 2017 Retail $ 121,063 $ 124,268 Premium Services 44,558 42,623 Web.com for Enterprise 21,120 18,227 Total Revenues $ 186,741 $ 185,118
Schedule of Impact of Topic 606 Adoption	In accordance with the new revenue standard requirements, the disclosure of the impact of adoption on our Consolidated Statement of Comprehensive Income and Consolidated Balance Sheets was as follows (in thousands): Three months ended March 31, 2018 As Reported Amounts Without the Adoption of ASC 606 Effect of Change Consolidated Statements of Comprehensive Income Sales and marketing 51,579 51,770 (191 ) As of March 31, 2018 As Reported Amounts Without The Adoption of ASC 606 Effect of Change Balance Sheet Assets Deferred expenses, current $ 65,444 $ 64,134 $ 1,310 Deferred expenses, noncurrent $ 49,262 $ 46,016 $ 3,246 Liabilities Deferred tax liabilities $ 53,809 $ 52,683 $ 1,126 Equity Accumulated deficit $ (187,126 ) $ (190,556 ) $ 3,430
Schedule of Contract with Customer Asset and Liability	The opening and closing balances of the Company's accounts receivable, contract assets and deferred revenues are as follows (in thousands): Accounts Receivable Deferred Expenses (Including Contract Assets) Deferred Revenue Opening Balance as of December 31, 2017 $ 25,424 109,583 $ 419,460 Increase, net 1,736 5,123 8,794 Ending balance as of March 31, 2018 $ 27,160 114,706 $ 428,254

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Schedule of Purchase Price Allocation	The following table summarizes the Company's purchase price allocation based on the fair values of the assets acquired and the liabilities assumed (in thousands): As of March 31, 2018 Tangible current assets $ 1,071 Property plant and equipment 2,344 Domain/Trade names 990 Non-competes 236 Customer relationships 1,720 Other non current assets 2,811 Goodwill 10,568 Current liabilities (1,738 ) Deferred revenue (1,584 ) Other long term liabilities (6,070 ) Purchase price consideration $ 10,348 The following table summarizes the Company's purchase price allocation based on the fair values of the assets acquired and the liabilities assumed (in thousands): December 31, 2017 Adjustments to Opening Balance Sheet March 31, 2018 Tangible current assets $ 130 $ — $ 130 Property plant and equipment 376 — 376 Domain/Trade names 401 — 401 Developed Technology 2,698 — 2,698 Customer relationships 1,908 — 1,908 Other assets — 642 642 Goodwill 4,264 — 4,264 Current liabilities (274 ) — (274 ) Deferred revenue (93 ) — (93 ) Other long term liabilities (129 ) (642 ) (771 ) Purchase price consideration $ 9,281 $ — $ 9,281

Net Income Per Common Share (Ta

Net Income Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Computation of Basic And Diluted Net Loss Income per Common Share	The following table sets forth the computation of basic and diluted net income per common share (in thousands, except per share amounts): Three months ended March 31, 2018 2017 Net income $ 4,576 $ 6,518 Basic weighted average common shares outstanding 47,481 49,076 Dilutive effect of stock options 1,044 1,282 Dilutive effect of restricted shares 498 426 Dilutive effect of performance shares 43 16 Diluted weighted average common shares outstanding 49,066 50,800 Net income per basic common share $ 0.10 $ 0.13 Net income per diluted common share $ 0.09 $ 0.13

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Changes In Goodwill	The following table summarizes changes in the Company’s goodwill balances as required by ASC 350-20 for the three months ended March 31, 2018 and the year ended December 31, 2017 , respectively (in thousands): March 31, December 31, Goodwill balance at beginning of period $ 987,956 $ 974,045 Accumulated impaired goodwill at beginning of period (102,294 ) (102,294 ) Goodwill balance at beginning of period, net $ 885,662 871,751 Goodwill acquired during the period- DonWeb- Note 3, Business Combinations — 10,568 Goodwill acquired during the period- Acquisio - Note 3, Business Combinations — 4,264 Foreign currency translation adjustments (405 ) (921 ) Goodwill balance at end of period, net * $ 885,257 $ 885,662 * Gross goodwill balances were $987.6 million as of March 31, 2018 and $988.0 million as of December 31, 2017 . These include accumulated impairment losses of $102.3 million .
Summary of Intangible Assets	The Company’s intangible assets are summarized as follows (in thousands): March 31, 2018 Gross Carrying Amount Accumulated Amortization Net Weighted-average Remaining Amortization Period in Years Indefinite-lived intangible assets: Domain/Trade names $ 161,275 $ — $ 161,275 Definite-lived intangible assets: Customer relationships 327,181 (192,146 ) 135,035 5.3 Developed technology 283,391 (220,659 ) 62,732 4.0 Other 8,724 (8,428 ) 296 1.4 Total * $ 780,571 $ (421,233 ) $ 359,338 * Cumulative foreign currency translation adjustments, reflecting the movement in currencies, had minimal effect on total intangible assets at of March 31, 2018 . December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Weighted-average Remaining Amortization Period in Years Indefinite-lived intangible assets: Domain/Trade names $ 161,251 $ — $ 161,251 Definite-lived intangible assets: Customer relationships 327,176 (185,353 ) 141,823 5.6 Developed technology 283,319 (215,545 ) 67,774 4.2 Other 8,673 (7,950 ) 723 1.0 Total * $ 780,419 $ (408,848 ) $ 371,571 *Cumulative foreign currency translation adjustments, reflecting the movement in currencies, decreased total intangible assets by approximately $0.2 million as of December 31, 2017.
Amortization Expense for Next Five Years	As of March 31, 2018 , the amortization expense for the remainder of the year ended December 31, 2018 , and the next five years and thereafter is as follows (in thousands): 2018 (remainder of year) $ 33,578 2019 41,873 2020 39,235 2021 38,308 2022 26,667 2023 17,067 Thereafter 1,335 Total $ 198,063

Long-term Debt (Tables)

Long-term Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Outstanding Long-Term Debt and Interest Rates	Outstanding long-term debt and the interest rates in effect at March 31, 2018 and December 31, 2017 consist of the following (in thousands): March 31, December 31, Revolving Credit Facility maturing 2021, 3.99%, based on LIBOR plus 2.25% $ 10,000 $ 10,000 Term Loan due 2021, 4.04% based on LIBOR plus 2.25%, less unamortized discount of $3,495 at March 31, 2018, effective rate of 4.14% 386,239 385,934 Senior Convertible Notes, maturing 2018, 1.00%, less unamortized discount of $4,643 at March 31, 2018, effective rate of 5.88% 254,107 251,036 Total Outstanding Debt 650,346 646,970 Less: Current Portion of Long-Term Debt (24,943 ) (16,612 ) Long-Term Portion $ 625,403 $ 630,358
Principal Payments Due for All Long-term Debt	Total estimated principal payments due for the next three years as of March 31, 2018 are as follows: Year 1 $ 25,265 Year 2 44,128 Year 3 589,091 Total principal payments $ 658,484

Accumulated Other Comprehensi26

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive loss were as follows (in thousands): March 31, 2018 December 31, 2017 Foreign currency translation adjustments $ (4,567 ) $ (4,503 ) Total accumulated other comprehensive loss $ (4,567 ) $ (4,503 )

Stock-Based Compensation and 27

Stock-Based Compensation and Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Black Scholes Assumptions	Below are the ranges of assumptions used in calculating the fair value of options granted during the following periods: Three months ended March 31, 2018 2017 Risk-free interest rate 2.54% - 2.54% 1.90% - 1.98% Dividend yield N/A N/A Expected life (in years) 4.99 - 4.99 5.05 - 5.05 Volatility 41.47% - 41.47% 44.67% - 44.67%

The Company and Summary of Si28

The Company and Summary of Significant Accounting Policies - Narrative (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)Segment	Dec. 31, 2017USD ($)	Jan. 31, 2017
Business Acquisition [Line Items]
Number of reportable segments | Segment	1
Short term restricted cash	$ 0.3	$ 0.3
Long term restricted cash	$ 4.6	$ 4.6
DonWeb
Business Acquisition [Line Items]
Percentage of equity interests acquired			100.00%

Revenues - Narrative (Details)

Revenues - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to opening retained earnings	$ (187,126,000)		$ (194,996,000)
Revenue recognized included in deferred revenue	$ 89,300,000
Amortization term deferred commission threshold	1 year
Deferred cost amortization period	4 years 10 months 28 days
Amortization of capitalized contract cost	$ 24,400,000
Deferred commission impairment loss	$ 0
Unsatisfied performance obligations contract term disclosure threshold	1 year
Effect of Change | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to opening retained earnings	$ 3,430,000	$ 3,300,000
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred commission maximum amortization period	13 months
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred commission maximum amortization period	72 months
Domain | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred cost amortization period	1 year
Domain | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred cost amortization period	5 years
Cost Incurred To Obtain Contract
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized contract cost	$ 5,300,000
Cost Incurred To Fulfill Contract
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized contract cost	$ 109,400,000
Sales Revenue, Net | Professional Services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration Risk, Percentage	5.00%

Revenues - Schedule of Disaggre

Revenues - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 186,741	$ 185,118
Retail
Disaggregation of Revenue [Line Items]
Revenue	121,063	124,268
Premium Services
Disaggregation of Revenue [Line Items]
Revenue	44,558	42,623
Web.com for Enterprise
Disaggregation of Revenue [Line Items]
Revenue	$ 21,120	$ 18,227

Revenues - Schedule of Impact o

Revenues - Schedule of Impact of Topic 606 Adoption (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Consolidated Statements of Comprehensive Income
Sales and marketing	$ 51,579	$ 50,911
Assets
Deferred expenses, current	65,444			$ 63,267
Deferred expenses, noncurrent	49,262			46,316
Liabilities
Deferred tax liabilities	53,809			51,042
Equity
Accumulated deficit	(187,126)			$ (194,996)
Amounts Without The Adoption of ASC 606
Consolidated Statements of Comprehensive Income
Sales and marketing	51,770
Assets
Deferred expenses, current	64,134
Deferred expenses, noncurrent	46,016
Liabilities
Deferred tax liabilities	52,683
Equity
Accumulated deficit	(190,556)
Effect of Change | Accounting Standards Update 2014-09
Consolidated Statements of Comprehensive Income
Sales and marketing	(191)
Assets
Deferred expenses, current	1,310
Deferred expenses, noncurrent	3,246
Liabilities
Deferred tax liabilities	1,126
Equity
Accumulated deficit	$ 3,430		$ 3,300

Revenues - Schedule of Contract

Revenues - Schedule of Contract with Customer Asset and Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Change in Contract With Customer Asset, Accounts Receivable [Roll Forward]
Beginning balance, accounts receivable	$ 25,424
Increase, net, accounts receivable	1,736
Ending balance, accounts receivable	27,160
Change in Contract With Customer Asset, Deferred Expense [Roll Forward]
Beginning balance, deferred expenses including contract assets	114,706	$ 109,583
Increase, net, deferred expenses, including contract assets	5,123
Ending balance, deferred expenses including contract assets	114,706
Change in Contract With Customer Liability, Deferred Revenue [Roll Forward]
Beginning balance, deferred revenue	428,254	$ 419,460
Increase, net, deferred revenue	8,794
Ending balance, deferred revenue	$ 428,254

Business Combinations - Narrati

Business Combinations - Narrative (Details) - USD ($) $ in Thousands	Nov. 01, 2017	Jan. 31, 2017	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Total acquisition consideration				$ 22,000	$ 18,933
Acquisio Inc.
Business Acquisition [Line Items]
Payment for acquisition			$ 8,700
Contingent consideration liability	$ 600
DonWeb
Business Acquisition [Line Items]
Payment for acquisition		$ 8,600
Percentage of equity interests acquired		100.00%
Potential contingent consideration		$ 2,000
Contingent consideration transferred present value		1,700
Total acquisition consideration		10,300
Liabilities arising from pre-acquisition matters		4,000
Post-Acquisition Business Performance and Employment | DonWeb
Business Acquisition [Line Items]
Potential contingent consideration		$ 3,000
Contingent consideration earn out period		4 years
Non-competes | DonWeb
Business Acquisition [Line Items]
Intangible asset useful life						4 years
Customer relationships | Acquisio Inc.
Business Acquisition [Line Items]
Intangible asset useful life	4 years
Customer relationships | DonWeb
Business Acquisition [Line Items]
Intangible asset useful life						3 years
Developed technology | Acquisio Inc.
Business Acquisition [Line Items]
Intangible asset useful life	10 years

Business Combinations - Schedul

Business Combinations - Schedule of Purchase Allocation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Nov. 01, 2017	Dec. 31, 2016
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill	$ 885,257	$ 885,662		$ 871,751
Acquisio Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Tangible current assets	130		$ 130
Property plant and equipment	376		376
Other assets	642	0
Goodwill	4,264		4,264
Current liabilities	(274)		(274)
Deferred revenue	(93)		(93)
Other long term liabilities	(771)		(129)
Purchase price consideration	9,281	9,281
Adjustments to Opening Balance Sheet
Tangible current assets	0
Property plant and equipment	0
Other assets	642
Goodwill	0
Current liabilities	0
Deferred revenue	0
Other long term liabilities	(642)
Purchase price consideration	0
DonWeb
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Tangible current assets		1,071
Property plant and equipment	2,344
Other non current assets		2,811
Goodwill		10,568
Current liabilities	(1,738)
Deferred revenue	(1,584)
Other long term liabilities		$ (6,070)
Purchase price consideration	10,348
Developed technology | Acquisio Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Finite-lived intangible assets	2,698		2,698
Adjustments to Opening Balance Sheet
Intangible assets	0
Non-competes | DonWeb
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Finite-lived intangible assets	236
Customer relationships | Acquisio Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Finite-lived intangible assets	1,908		1,908
Adjustments to Opening Balance Sheet
Intangible assets	0
Customer relationships | DonWeb
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Finite-lived intangible assets	1,720
Domain/Trade names | Acquisio Inc.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Domain/Trade names	401		$ 401
Adjustments to Opening Balance Sheet
Intangible assets	0
Domain/Trade names | DonWeb
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Domain/Trade names	$ 990

Net Income Per Common Share - A

Net Income Per Common Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Stock options and restricted share awards not included in the computation of earnings per share (in shares)	2.8	2.7

Net Income Per Common Share - C

Net Income Per Common Share - Computation of Basic And Diluted Net Loss Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income	$ 4,576	$ 6,518
Basic weighted average common shares (in shares)	47,481	49,076
Diluted effect of stock options (in shares)	1,044	1,282
Diluted effect of restricted shares (in shares)	498	426
Dilutive effect of performance shares (in shares)	43	16
Diluted weighted average common shares (in shares)	49,066	50,800
Basic earnings per share:
Net (loss) income per common share (in dollars per share)	$ 0.10	$ 0.13
Diluted earnings per share:
Net (loss) income per common share (in dollars per share)	$ 0.09	$ 0.13

Goodwill and Intangible Asset37

Goodwill and Intangible Assets - Summary of Changes in Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill balance at beginning of period	$ 987,600	$ 987,956	$ 974,045
Accumulated impaired goodwill at beginning of period	(102,300)	(102,294)	$ (102,294)
Goodwill [Roll Forward]
Goodwill, beginning of period	885,662	871,751
Foreign currency translation adjustments	(405)	(921)
Goodwill, end of period	885,257	885,662
Acquisio Inc.
Goodwill [Roll Forward]
Goodwill acquired during the period	0	4,264
Goodwill, end of period	4,264
Scoot
Goodwill [Roll Forward]
Goodwill acquired during the period	$ 0	$ 10,568

Goodwill and Intangible Asset38

Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (421,233)	$ (408,848)
Net/Total finite intangible assets	$ 198,063
Weighted-average Remaining Amortization Period in Years	4 years 10 months 28 days
Intangible asset, gross carrying amount	$ 780,571	780,419
Intangible assets, net	359,338	371,571
Cumulative foreign currency translation adjustment decrease to total intangible assets		200
Domain/Trade names
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	161,275	161,251
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	327,181	327,176
Accumulated Amortization	(192,146)	(185,353)
Net/Total finite intangible assets	$ 135,035	$ 141,823
Weighted-average Remaining Amortization Period in Years	5 years 4 months 2 days	5 years 7 months 6 days
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 283,391	$ 283,319
Accumulated Amortization	(220,659)	(215,545)
Net/Total finite intangible assets	$ 62,732	$ 67,774
Weighted-average Remaining Amortization Period in Years	4 years 5 days	4 years 2 months 12 days
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,724	$ 8,673
Accumulated Amortization	(8,428)	(7,950)
Net/Total finite intangible assets	$ 296	$ 723
Weighted-average Remaining Amortization Period in Years	1 year 5 months 8 days	11 months 23 days

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and other finite-lived intangible asset impairment	$ 0
Weighted-average Remaining Amortization Period in Years	4 years 10 months 28 days
Amortization expense	$ 12,200,000	$ 12,900,000

Goodwill and Intangible Asset40

Goodwill and Intangible Assets - Amortization Expense for Next Five Years (Detail) $ in Thousands	Mar. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2018 (remainder of year)	$ 33,578
2,019	41,873
2,020	39,235
2,021	38,308
2,022	26,667
2,023	17,067
Thereafter	1,335
Net/Total finite intangible assets	$ 198,063

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
wwwwConversant
Related Party Transaction [Line Items]
Related party transaction expense	$ 0.2	$ 0.2

Long-term Debt - Additional Inf

Long-term Debt - Additional Information (Detail)	Feb. 11, 2016USD ($)	Aug. 31, 2017	Aug. 31, 2013USD ($)day$ / shares	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2017USD ($)
Debt Instrument
Convertible debt			$ 204,400,000
Carrying amount of equity component			$ 47,800,000	$ 47,800,000				$ 47,800,000
Discount amortization period			5 years
Payments of debt issuance costs					$ 1,900,000		$ 5,700,000
Amortization of debt issuance costs and other				3,400,000		$ 3,300,000
Convertible Debt
Debt Instrument
Long-term debt				$ 254,107,000				$ 251,036,000
First Lien Term Loan Due 2019
Debt Instrument
Balance of debt extinguished			$ 208,000,000
1% Senior Convertible Notes due August 15, 2018 | Convertible Debt
Debt Instrument
Stated interest rate (percent)			1.00%	1.00%
Face amount			$ 258,800,000
Conversion price (in dollars per share) | $ / shares			$ 35
Proceeds from convertible debt			$ 252,300,000
Discount amortization period				5 months
Long-term debt				$ 10,600,000
Unamortized debt issuance costs				4,643,000
1% Senior Convertible Notes due August 15, 2018 | On or after August 20, 2016 | Convertible Debt
Debt Instrument
Redemption price (percent)			100.00%
First Lien Term Loan Due 2019 | Secured Debt
Debt Instrument
Unamortized debt issuance costs				3,495,000
Term Loan
Debt Instrument
Face amount	$ 390,000,000
Balance of debt extinguished	$ 190,000,000
Debt instrument, term	5 years
Increase (decrease) to line of credit facility	$ 200,000,000			50,000,000
Proceeds from issuance of debt	115,000,000
Revolving Credit Facility
Debt Instrument
Line of credit facility maximum borrowing capacity	$ 150,000,000			110,000,000
Remaining borrowing capacity				$ 248,100,000
Revolving Credit Facility | Line of Credit
Debt Instrument
Balance of debt extinguished			$ 43,000,000
Term Loan
Debt Instrument
Commitment fee (percent)		0.40%
Fronting fee (percent)		0.125%
London Interbank Offered Rate (LIBOR) | First Lien Term Loan Due 2019 | Secured Debt
Debt Instrument
Variable rate spread				2.25%
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of Credit
Debt Instrument
Variable rate spread				2.25%
London Interbank Offered Rate (LIBOR) | Term Loan
Debt Instrument
Variable rate spread	3.00%
Prime Rate | Term Loan
Debt Instrument
Variable rate spread	2.00%
Parent Company | Minimum | 1% Senior Convertible Notes due August 15, 2018 | On or after August 20, 2016 | Convertible Debt
Debt Instrument
Stock price trigger threshold (percent)			130.00%
Debt Holders | 1% Senior Convertible Notes due August 15, 2018 | Prior to May 15, 2018 | Convertible Debt
Debt Instrument
Threshold basis period			5 days
Threshold consecutive trading days | day			5
Debt Holders | Minimum | 1% Senior Convertible Notes due August 15, 2018 | On or after August 20, 2016 | Convertible Debt
Debt Instrument
Stock price trigger threshold (percent)			130.00%
Debt Holders | Maximum | 1% Senior Convertible Notes due August 15, 2018 | Prior to May 15, 2018 | Convertible Debt
Debt Instrument
Stock price trigger threshold (percent)			98.00%

Long-term Debt - Outstanding Lo

Long-term Debt - Outstanding Long Term Debt and Interest Rates (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Aug. 31, 2013
Debt Instrument
Total Outstanding Debt	$ 650,346	$ 646,970
Less: Current Portion of Long-Term Debt	(24,943)	(16,612)
Long-Term Portion	625,403	630,358
Convertible Debt
Debt Instrument
Long-term debt	254,107	251,036
Revolving Credit Facility
Debt Instrument
Revolving Credit Facility maturing 2021, 3.99%, based on LIBOR plus 2.25%	10,000	10,000
First Lien Term Loan Due 2019 | Secured Debt
Debt Instrument
Unamortized debt issuance costs	$ 3,495
Effective interest rate	4.14%
Term Loan Due Twenty Nineteen | Secured Debt
Debt Instrument
Long-term debt	$ 386,239	$ 385,934
1% Senior Convertible Notes due August 15, 2018 | Convertible Debt
Debt Instrument
Long-term debt	10,600
Unamortized debt issuance costs	$ 4,643
Effective interest rate	5.88%
Stated interest rate (percent)	1.00%		1.00%
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of Credit
Debt Instrument
Variable interest rate during period	3.99%
Variable rate spread	2.25%
London Interbank Offered Rate (LIBOR) | First Lien Term Loan Due 2019 | Secured Debt
Debt Instrument
Variable interest rate during period	4.04%
Variable rate spread	2.25%

Long-term Debt - Principal Paym

Long-term Debt - Principal Payments Due for All Long Term Debt (Detail) $ in Thousands	Mar. 31, 2018USD ($)
Debt Disclosure [Abstract]
Year 1	$ 25,265
Year 2	44,128
Year 3	589,091
Total principal payments	$ 658,484

Accumulated Other Comprehensi45

Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total accumulated other comprehensive loss	$ (4,567)	$ (4,503)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total accumulated other comprehensive loss	$ (4,567)	$ (4,503)

Fair Value - Additional Informa

Fair Value - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term debt carrying value	$ 254.1	$ 251
First Lien Term Loan Due 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt, fair value	$ 256.2	$ 255.3

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 2,196	$ 6,134
Effective income tax rate	32.40%	48.50%
Income tax benefit as result of transition tax	$ 500

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Millions	Mar. 31, 2018USD ($)
Commitments and Contingencies Disclosure [Abstract]
Outstanding standby letters of credit	$ 6.8
Outstanding standby letters of credit drawn against revolving credit facility	$ 1.9

Stock-Based Compensation and 49

Stock-Based Compensation and Stockholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Oct. 31, 2016	Nov. 05, 2014
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	3 years	3 years
Shares granted in period (in shares)	200,000	200,000
Stock based compensation	$ 5,774,000	$ 5,557,000
Stock repurchase program, shares authorized			$ 100,000,000	$ 100,000,000
Stock repurchase program remaining authorized shares, amount	$ 33,800,000
Shares repurchased during period (in shares)	0	107,000
Treasury stock acquired during period		$ 2,100,000
Common stock purchases under stock repurchase plan	$ 0	2,081,000
Incentive And Non-Statutory Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Maximum term	10 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock based compensation	$ 500,000	700,000
Percentage of target shares granted	71.00%
Shares issued during period (in shares)	113,000
Shares forfeited in lieu of income tax withholding requirements (in shares)	41,000
Shares forfeited in lieu of income tax withholding requirements, value	$ 700,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Maximum term	10 years
Stock based compensation	$ 1,700,000	$ 2,000,000
Common shares were issued from options exercised (in shares)	200,000	300,000
Stock options granted (in shares)	800,000	800,000
Weighted average option grant date fair value (in dollars per share)	$ 6.98	$ 8.57
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	4 years
Annual vesting (percent)	25.00%
Stock based compensation	$ 3,500,000	$ 2,800,000
Shares forfeited in lieu of income tax withholding requirements (in shares)	100,000	200,000
Shares forfeited in lieu of income tax withholding requirements, value	$ 2,500,000	$ 3,100,000
Weighted average option grant date fair value (in dollars per share)	$ 22.97	$ 20.45
Restricted common shares granted (in shares)	600,000	800,000
Minimum | Incentive And Non-Statutory Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	3 years
Minimum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of target shares granted	0.00%
Maximum | Incentive And Non-Statutory Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period	4 years
Maximum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of target shares granted	200.00%
First vesting period
Share-based Compensation Arrangement by Share-based Payment Award
Annual vesting (percent)	33.33%	33.33%
Second vesting period
Share-based Compensation Arrangement by Share-based Payment Award
Annual vesting (percent)	33.33%	33.33%
Third vesting period
Share-based Compensation Arrangement by Share-based Payment Award
Annual vesting (percent)	33.33%	33.33%

Stock-Based Compensation and 50

Stock-Based Compensation and Stockholders' Equity - Black Sholes Assumptions (Details) - Stock Options	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Risk-free interest rate, minimum	2.54%	1.90%
Risk-free interest rate, maximum	2.54%	1.98%
Volatility, minimum	41.47%	44.67%
Volatility, maximum	41.47%	44.67%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Expected life (in years)	4 years 11 months 27 days	5 years 18 days
Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Expected life (in years)	4 years 11 months 27 days	5 years 18 days

Restructuring Restructuring (De

Restructuring Restructuring (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 2,703,000	$ 322,000
Restructuring charges paid	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - USD ($)	Apr. 30, 2018	Feb. 11, 2016	Mar. 31, 2018
Term Loan
Subsequent Event [Line Items]
Face amount		$ 390,000,000
Debt instrument, term		5 years
Term Loan | Subsequent Event
Subsequent Event [Line Items]
Face amount	$ 400,000,000
Debt instrument, term	5 years
Revolving Credit Facility
Subsequent Event [Line Items]
Line of credit facility maximum borrowing capacity		$ 150,000,000	$ 110,000,000
Revolving Credit Facility | Subsequent Event
Subsequent Event [Line Items]
Line of credit facility maximum borrowing capacity	$ 400,000,000
London Interbank Offered Rate (LIBOR) | Term Loan | Subsequent Event
Subsequent Event [Line Items]
Variable rate spread	1.75%
Minimum | Term Loan | Subsequent Event
Subsequent Event [Line Items]
Unused revolver fee	0.30%
Maximum | Term Loan | Subsequent Event
Subsequent Event [Line Items]
Unused revolver fee	0.40%