ConvergeOne S-1/A 24 Apr 18 IPO registration (amended) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2017
Document And Entity Information [Abstract]
Document Type	S-1/A
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Trading Symbol	CVON
Entity Registrant Name	ConvergeOne Holdings, Inc.
Entity Central Index Key	1,697,152
Entity Filer Category	Non-accelerated Filer

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets
Cash	$ 13,475	$ 9,632
Trade accounts receivable, less allowances	289,236	180,160
Inventories	14,717	12,127
Prepaid expenses and other current assets	9,294	3,373
Deferred customer support contract costs	35,151	19,779
Income tax receivable	10,576
Total current assets	372,449	225,071
Other Assets
Goodwill	331,456	258,570
Finite-life intangibles, net	173,642	134,620
Property and equipment, net	36,659	15,355
Deferred customer support contract costs, noncurrent	3,915	805
Non-current income tax receivable	2,620
Deferred offering costs		1,839
Total other assets	548,292	411,189
Total assets	920,741	636,260
Current Liabilities
Current maturities of long-term debt	5,652	3,324
Accounts payable	157,778	95,824
Customer deposits	22,498	14,144
Accrued compensation	34,522	23,382
Accrued other	27,362	11,101
Income tax payable		4,151
Deferred revenue	68,127	41,876
Total current liabilities	315,939	193,802
Long-Term Liabilities
Long-term debt, net of debt issuance costs and current maturities	566,424	388,964
Deferred income taxes	18,056	37,841
Long-term income tax payable	1,563	1,567
Deferred revenue and other long-term liabilities	13,118	1,326
Total long-term liabilities	599,161	429,698
Commitments and Contingencies
Stockholders' Equity
Subscription receivable from related party	(1,805)
Additional paid-incapital	13,459	10,367
(Accumulated deficit) retained earnings	(6,023)	2,383
Total stockholders' equity	5,641	12,760
Total liabilities and stockholders' equity	920,741	636,260
Class A common stock
Stockholders' Equity
Common stock	9	9
Total stockholders' equity	9	9
Class B convertible common stock
Stockholders' Equity
Common stock	1	1
Total stockholders' equity	$ 1	$ 1

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Class A common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	106,000,000	106,000,000
Common stock, shares issued	89,766,294	89,862,276
Common stock, shares outstanding	89,766,294	89,862,276
Class B convertible common stock
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	16,000,000	16,000,000
Common stock, shares issued	14,830,683	14,701,748
Common stock, shares outstanding	14,830,683	14,701,748

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue
Technology offerings	$ 453,106	$ 439,804	$ 297,481
Services	465,820	375,805	303,983
Total revenue	918,926	815,609	601,464
Cost of revenue
Technology offerings	348,430	333,082	220,377
Services	296,011	233,283	187,641
Total cost of revenue	644,441	566,365	408,018
Gross profit
Total gross profit	274,485	249,244	193,446
Operating expenses
Sales and marketing	139,469	128,733	96,578
General and administrative	61,367	40,262	36,955
Transaction costs	14,071	6,055	5,678
Depreciation and amortization	34,908	27,692	23,520
Total operating expenses	249,815	202,742	162,731
Operating income	24,670	46,502	30,715
Other (income) expense
Interest income	(105)	(11)	(26)
Interest expense	52,057	31,438	23,072
Other expense, net	87	10	72
Interest expense and other, net	52,039	31,437	23,118
(Loss) income before income taxes	(27,369)	15,065	7,597
Income tax (benefit) expense	(19,348)	6,716	3,574
Net (loss) income	$ (8,021)	$ 8,349	$ 4,023
Net (loss) income per share attributable to Class A common stockholders, basic and diluted	$ (0.09)	$ 0.09	$ 0.04
Cash dividends per share of Class A common stock		$ 1
Technology offerings
Gross profit
Total gross profit	$ 104,676	$ 106,722	$ 77,104
Services
Gross profit
Total gross profit	$ 169,809	$ 142,522	$ 116,342

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Class A common stock	Class B convertible common stock	Subscription Receivable	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)
Balance (in shares) at Dec. 31, 2014		89,883,258	13,142,461
Balance at Dec. 31, 2014	$ 88,965	$ 9	$ 1		$ 90,007	$ (1,052)
Common shares issued upon exercise of options	$ 20				20
Common shares issued upon exercise of options (in shares)	1,961,000		1,961,124
Repurchase of shares	$ (25)				(25)
Repurchase of shares (in shares)		(20,982)	(401,837)
Stock-based compensation expense	233				233
Net (loss) income	4,023					4,023
Balance (in shares) at Dec. 31, 2015		89,862,276	14,701,748
Balance at Dec. 31, 2015	93,216	$ 9	$ 1		90,235	2,971
Stock-based compensation expense	1,057				1,057
Dividends paid	(89,862)				(80,925)	(8,937)
Net (loss) income	8,349					8,349
Balance (in shares) at Dec. 31, 2016		89,862,276	14,701,748
Balance at Dec. 31, 2016	$ 12,760	$ 9	$ 1		10,367	2,383
Common shares issued upon exercise of options				$ (1,805)	1,805
Common shares issued upon exercise of options (in shares)	531,000		530,772
Repurchase of shares	$ (385)					(385)
Repurchase of shares (in shares)		(95,982)	(401,837)
Stock-based compensation expense	1,287				1,287
Net (loss) income	(8,021)					(8,021)
Balance (in shares) at Dec. 31, 2017		89,766,294	14,830,683
Balance at Dec. 31, 2017	$ 5,641	$ 9	$ 1	$ (1,805)	$ 13,459	$ (6,023)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows from Operating Activities
Net (loss) income	$ (8,021)	$ 8,349	$ 4,023
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation of property and equipment in operating expenses	8,462	5,236	3,273
Depreciation of property and equipment in cost of revenue	1,465	878	338
Amortization of finite-life intangibles	26,445	22,456	20,247
Deferred income taxes	(8,011)	(4,065)	(2,917)
Amortization of debt issuance costs	2,596	2,412	2,028
Loss on extinguishment of debt	13,638	2,747
Stock-based compensation expense	1,287	1,057	233
Other	2,383	17	97
Changes in assets and liabilities, net of business acquisitions in 2017 and 2015:
Trade accounts receivable	(38,661)	(5,536)	(32,145)
Inventories	9,913	(780)	(3,665)
Prepaid expenses, deferred customer support contract costs and other	(3,576)	(1,490)	(7,652)
Income tax receivable	(11,408)	17	4,419
Accounts payable and accrued expenses	(7,558)	(11,112)	12,928
Customer deposits	(1,090)	920	(2,384)
Income tax payable	(4,253)	(257)	5,301
Deferred revenue and other long-term liabilities	9,865	2,007	10,346
Net cash (used in) provided by operating activities	(6,524)	22,856	14,470
Cash Flows from Investing Activities
Purchases of property and equipment	(9,514)	(9,272)	(5,476)
Acquisitions of businesses, net of cash acquired	(142,925)	247	(67,047)
Net cash used in investing activities	(152,439)	(9,025)	(72,523)
Cash Flows from Financing Activities
Proceeds from term notes, less discount	569,988	88,650	49,750
Dividends paid		(89,862)
Proceeds from revolving credit agreement	114,000	42,000	20,000
Repayment of revolving credit agreement	(94,000)	(52,000)	(10,000)
Repurchase of common stock	(385)		(25)
Payment of deferred financing costs	(6,630)	(3,966)	(1,168)
Payment of extinguishment charges	(3,353)	(1,470)
Deferred offering costs		(224)
Payment on long-term debt	(416,814)	(2,634)	(2,279)
Proceeds received from stock option exercises			20
Net cash provided by (used in) financing activities	162,806	(19,506)	56,298
Net increase (decrease) in cash	3,843	(5,675)	(1,755)
Cash - Beginning	9,632	15,307	17,062
Cash - Ending	13,475	9,632	15,307
Supplemental disclosures of cash flow information
Interest paid	37,035	27,650	20,870
Income taxes paid	4,343	11,017	2,812
Supplemental disclosures of noncash investing and financing activities
Deferred offering costs in accounts payable and accrued expenses		1,615
Deferred financing costs in accounts payable and accrued expenses		363
Property and equipment purchases financed with accounts payable	123	$ 235	$ 170
Contingent consideration for business acquisition	956
Stock option exercise with promissory note	$ 1,805

Nature of Business and Summary

Nature of Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Nature of Business and Summary of Significant Accounting Policies	1. Nature of Business and Summary of Significant Accounting Policies Description of the Company C1 Investment Corp. and its wholly owned subsidiary, C1 Intermediate Corp., are Delaware corporations that were incorporated to complete the 2014 acquisition of ConvergeOne Holdings Corp. (“Holdings”) and its consolidated subsidiaries by Clearlake Capital Group, L.P. (“Clearlake”). Holdings is the parent company of ConvergeOne, Inc. (“ConvergeOne”), formerly North American Communications Resource, Inc. (“NACR”), Annese & Associates, Inc. (“Annese”), SPS Holdco, LLC. (“SPS”), RGTS, Inc. (“RGTS”) and AOS, Inc. (“AOS”). On May 16, 2015, ConvergeOne Solutions, Inc. (“Solutions”) was formed as a wholly owned subsidiary of Holdings. On May 19, 2015, NACR acquired all issued and outstanding stock of Sunturn, Inc. (“Sunturn”), and Solutions acquired all issued and outstanding stock of MSN Communications, Inc. (“MSN”). On December 4, 2015, Solutions acquired all issued and outstanding stock of SIGMAnet, Inc. (“SIGMAnet”). On December 31, 2015, the Company executed a series of mergers designed to simplify its legal structure. Sunturn was merged into NACR; and Solutions was merged into NACR. On January 1, 2016, NACR’s name was legally changed to ConvergeOne, Inc. SIGMAnet was merged into ConvergeOne, Inc. on March 31, 2017. ConvergeOne acquired all issued and outstanding stock of Annese on July 14, 2017, all issued and outstanding stock of SPS on August 16, 2017, all issued and outstanding stock of Rockefeller Group Technology Solutions, Inc. on September 15, 2017 and all issued and outstanding stock of AOS On December 15, 2017. These business acquisitions are described in Note 2—Business Acquisitions. Immediately following the acquisition of Rockefeller Group Technology Solutions, Inc., the name of the company was legally changed to RGTS, Inc. and the separate legal entities were merged into one of two surviving companies, either RGTS, Inc. the parent company or RGT Utilities, Inc. References to “the Company,” “we,” “us,” “our,” and similar words refer to C1 Investment Corp. and all of the consolidated subsidiaries, unless specifically noted otherwise. Merger On November 30, 2017, the Company signed an Agreement and Plan of Merger (“Merger”) with Forum Merger Corporation (“Forum”), whereby a subsidiary of Forum and the Company shall consummate a merger, pursuant to which the subsidiary shall be merged with and into the Company, following which the separate corporate existence of the subsidiary shall cease and the Company shall continue as the surviving corporation (the “Business Combination”). On February 22, 2018, the transactions contemplated by the Merger were consummated. In connection with the Merger, the name of the surviving corporation was changed to ConvergeOne Holdings, Inc. The Business Combination will be accounted for as a reverse merger in accordance with U.S. GAAP. Under this method of accounting, Forum will be treated as the “acquired” company for financial reporting purposes. This determination was primarily based on the Company Securityholders expecting to have a majority of the voting power of the combined company, the Company comprising the ongoing operations of the combined entity, the Company comprising a majority of the governing body of the combined company, and the Company’s senior management comprising the senior management of the combined company. Accordingly, for accounting purposes, the Business Combination will be treated as the equivalent of the Company issuing stock for the net assets of Forum, accompanied by a recapitalization. The net assets of Forum will be stated at historical cost, with no goodwill or other intangible assets recorded. Operations prior to the Business Combination will be those of the Company. Nature of Business The Company is a leading IT services provider of collaboration and technology solutions for large and medium enterprises. The Company serves clients through its comprehensive engagement model which includes the full lifecycle of services from consultation through implementation, optimization, and ongoing support services. The Company provides innovative and sophisticated services, including professional and managed, cloud and maintenance services, and complex multi-vendor technology offerings to its clients. The Company’s core technology markets are (1) collaboration and (2) enterprise networking, data center, cloud, and security. Principles of Consolidation The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and include the accounts of the parent company, C1 Investment Corp., and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in the consolidation. Use of Estimates The preparation of the Company’s consolidated financial statements in conformity with U.S. 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 the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates are used when accounting for items and matters including, but not limited to, revenue recognition, the fair value of assets acquired and liabilities assumed in business combinations, evaluation of goodwill and long-lived assets for impairment, stock-based compensation, partner funding, income tax measurement, and provisions for doubtful accounts. Significant Accounting Policies A summary of the Company’s significant accounting policies follows: Revenue Recognition Products, installation and maintenance services are typically sold as a bundled arrangement containing multiple deliverables of new and/or refurbished hardware, software and professional services associated with installing, maintaining and managing the business communications systems. Revenue from multiple-element arrangements is allocated to the various elements based on the relative selling price of the elements, and each element is considered a separate accounting unit, with recognition of revenue based on the criteria met for the individual element of the multiple-element arrangement. When available, the Company uses vendor-specific objective evidence, or VSOE, to determine the selling price of a unit of accounting. If VSOE does not exist, the Company uses third-party evidence of the selling price for similar products and services. For units of accounting in which there is no VSOE or third-party evidence of selling price, the best estimate of selling price is used. The Company determines best estimate of selling price using a cost plus margin approach. Technology Offerings Revenue Revenue for hardware and software: The Company sells communication products, which consist of hardware and essential software. The software and hardware are necessary to deliver the essential functionality of the communication products. Revenue from the sale of hardware and software products is generally recognized on a gross basis with the sales price to the customer recorded as revenue and the acquisition cost of the product recorded as cost of revenue, net of certain partner funding. Revenue is recognized when the title and risk of loss are passed to the customer, there is persuasive evidence of an arrangement for sale, the sales price is fixed and determinable, and collectability is reasonably assured. Hardware and software items can be delivered to customers in a variety of ways including physical products shipped from our warehouses, via drop-shipment by the vendor or distributor or via electronic delivery for software licenses. The Company maintains an estimate for sales returns and credit losses based on historical experience. The Company’s vendor partners provide limited warranties to our customers on equipment sold. Sales Taxes Shipping and Freight Services Revenue Revenue for Professional Services Revenue for Managed, Cloud and Maintenance Services The Company considers the principal versus agent accounting guidance to determine if the Company is the primary obligor in the arrangement and if revenue should be recognized gross or net of the associated costs. Applying the principal versus agent accounting guidance is a matter of judgment based on consideration of several factors and indicators. Revenue from the sale of third-party retail maintenance contracts is recognized net of the related cost of revenue. In third-party retail maintenance contracts, all services are provided by third-party providers and, as a result, the Company concluded that it is acting as an agent and is not considered the primary obligor. As the Company is under no obligation to perform additional services, revenue is recognized net at the time of sale. Revenue from the sale of third-party wholesale maintenance contracts is recognized on a gross basis at the time of sale with the selling price to the customer recorded as revenue and the acquisition cost recorded as cost of revenue. Based upon the evaluation of indicators for net and gross reporting, the Company has concluded that it is acting as a principal in these contracts. Cash The Company maintains its cash in bank deposit and money market accounts that, at times, may exceed federally insured limits. The Company has not experienced any losses in such accounts. The Company’s cash management program utilizes zero balance accounts and overnight money market investments. The Company does not have any compensating balance requirements. Trade Accounts Receivable Accounts receivable are carried at the original invoice amount less an estimate made for doubtful receivables. Management determines the allowances by regularly evaluating individual customer receivables and considering a customer’s financial condition and credit history. Accounts receivable are written off when deemed uncollectible. Recoveries of accounts receivable previously written off are recorded when received. Inventories Inventories, consisting primarily of communication products, are valued at the lower of cost, determined by the specific-identification method and average cost, or market. The Company evaluates inventories for excess, aging, obsolescence or other factors that affect net realizable value. Write-downs have historically not been material for any of the periods presented. Property and Equipment Property and equipment are stated at cost. Depreciation is computed using straight-line and accelerated methods over estimated useful lives of five to ten years for furniture, fixtures and equipment, and three years for software. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the lease term. Depreciation of certain equipment and software directly utilized in support of cloud and managed services contracts is included in cost of service revenue within the Company’s consolidated statements of income. All other depreciation and amortization are recorded in depreciation and amortization within operating expenses in the Company’s consolidated statements of income. Finite-life Intangible Assets Finite-life intangible assets include customer relationships, trademarks, noncompetition agreements, and internally developed software. These intangible assets are amortized over the estimated period during which the asset is expected to contribute directly or indirectly to future cash flows. Impairment of Long-lived Assets The Company reviews its long-lived assets for impairment whenever events or circumstances exist that indicate the carrying amount of an asset or asset group may not be recoverable. The recoverability of long-lived assets is measured by a comparison of the carrying amount of the asset or asset group to the future undiscounted cash flows expected to be generated by that asset group. If the asset or asset group is considered to be impaired, an impairment loss would be recorded to adjust the carrying amounts to the estimated fair value. Management has determined that no impairment of long-lived assets exists, and accordingly, no adjustments to the carrying amounts of the Company’s long-lived assets have been made for the periods presented. Goodwill The Company records goodwill when the purchase price of a business acquisition exceeds the fair value of net tangible and identifiable intangible assets acquired in a business acquisition. Goodwill is assessed for impairment annually, or more frequently when events or changes in circumstances indicate that the fair value of a reporting unit has more likely than not declined below its carrying value. The Company has determined that it operates its business in one operating segment and one reporting unit and has selected October 1 as the date to perform its annual impairment test. The Company performs either a qualitative or quantitative assessment to determine if the fair value of its reporting unit exceeds its carrying value. The qualitative goodwill impairment assessment requires evaluating factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. As part of our goodwill qualitative assessment process, we evaluate various factors that are specific to the reporting unit that include, but are not limited to, macroeconomic conditions, industry and market considerations and the overall financial performance of the Company. When performing the quantitative assessment to calculate the fair value of a reporting unit, we consider both comparative market multiples as well as estimated discounted cash flows for the reporting unit. The significant estimates and assumptions include, but are not limited to, revenue growth rates, operating margins, and future economic and market conditions. The discount rates are based upon the reporting unit’s weighted average cost of capital. If an impairment is identified, the next step is to measure the impairment loss by comparing the implied fair value of goodwill with the carrying value of the goodwill for the reporting unit. The Company performed its annual test in 2017 using a quantitative assessment and determined that it was not more likely than not that the fair value of its reporting unit was less than its carrying amount. The Company believes the quantitative factors considered in the impairment analysis are reasonable, however, significant changes in any one of our assumptions could produce a different result and result in impairment charges that could be material to its consolidated financial statements. Debt Issuance Costs Debt issuance costs arising from the Company’s borrowings and credit agreements are amortized using the effective interest rate method over the term of the related debt financing. See Note 6—Debt. Debt issuance costs are presented on a net basis along with the associated debt obligation in the consolidated balance sheets. Deferred Offering Costs The Company capitalizes certain legal, accounting and other third-party fees that are directly associated with in-process paid-in Income Taxes Income taxes are provided using an asset and liability method. Deferred income tax assets and liabilities are computed for differences between the financial statement and tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. Management’s estimate of the income tax rates utilized in the calculation of the deferred income tax balances is based on historical taxable income of the Company, expected future taxable income and corresponding rates. The Company’s operations involve dealing with uncertainties and judgments in the application of complex tax regulations in a multitude of jurisdictions. The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return based on its estimate of whether, and the extent to which, additional taxes will be due. The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense. See Note 15—Income Taxes for further discussion on the enactment of the legislation commonly referred to as the Tax Cuts and Jobs Act and the impact to the Company’s provision for income taxes. Transaction Costs The Company presents transaction costs as a separate line item within operating expenses based on it being a material cost that varies from period to period. Transaction costs include acquisition-related expenses, including integration costs, employee retention bonuses, severance charges, advisory and due diligence fees, and transaction-related legal and accounting due diligence costs. Transaction costs for the year ended December 31, 2017 include the write-off Advertising Costs The Company expenses advertising costs as incurred. During the years ended December 31, 2017, 2016 and 2015, advertising costs were $1,935,000, $1,903,000 and $1,312,000, respectively. These amounts were offset by partner funding earned pursuant to shared marketing expense programs recorded as a reduction of selling and administrative expenses. Product Warranty The Company provides limited warranties for replacement of defective products for customers who purchase certain types of maintenance support. The Company has not incurred any significant costs associated with these warranties. Contingencies From time to time, the Company may be involved in legal matters such as contractual disputes, employment matters, personal injury or property damage claims. While the outcome of such litigation is never certain, management believes the outcomes will not have a material adverse effect on the consolidated financial statements. Stock-based Compensation The Company measures and recognizes stock-based compensation expense for all stock-based awards made to employees and directors based on the fair value of the awards as of the date they were each granted and the corresponding expense is recognized over the requisite service period of the awards, both for stock options and restricted stock grants. The Company measures and recognizes stock-based compensation expense for all stock-based awards to non-employees re-measured The Company uses the Black-Scholes option pricing model to determine the fair value of stock-based awards. The model utilizes the value of the Company’s common stock as well as assumptions regarding the award’s expected life, risk-free interest rate, expected volatility of the underlying stock, and expected dividends. The specific assumptions the Company uses include the following: Fair value of the Company’s common stock Expected term mid-point Risk-free interest rate Expected volatility Dividends The Company uses judgment in evaluating the factors used in the Black-Scholes pricing model. As a result, if factors change, stock-based compensation expense could be significantly different in the future. Stock-based compensation expense is classified as sales and marketing expense or general and administrative expense consistent with other compensation expense associated with the award recipient. The Company has not capitalized stock-based employee compensation cost or recognized any significant tax benefits related to these costs. Partner Funding The Company receives payments and credits from vendors for various programs, including rebates, volume incentive programs and shared marketing expense programs. Each program varies in length and has varying conditions or achievement targets that determine the amount of consideration the Company is eligible to receive. The Company estimates and recognizes the amount of vendor consideration earned when it is probable and reasonably estimable using the information available or historical data. The Company recognizes vendor consideration as a reduction of either cost of revenue for rebates and volume incentives or operating expenses for shared marketing expenses or marketing development fund programs based on the nature of the consideration earned. Business Combinations The Company accounts for business combinations and acquisitions using the acquisition method. The acquisition method requires that the total purchase price of the acquired entity be allocated to the assets acquired and liabilities assumed based on their fair values at the acquisition date. The assets acquired include the analysis and recognition of intangible assets such as customer relationships, trade names, developed technology and contractual rights and the liabilities assumed include contractual commitments and contingencies. Any premium paid over the fair value of the net assets and liabilities acquired is recorded as goodwill in connection with a business combination. The results of operations for an acquired entity are included in the consolidated financial statements from the date of acquisition. Fair Value Measurements Fair value is defined under U.S. GAAP as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. U.S. GAAP also provides a fair value hierarchy for valuation inputs to prioritize the inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of the three levels, which is determined by the lowest level input that is significant to the fair value measurement in its entirety. These levels are: Level 1: Inputs are quoted prices in active markets for identical assets or liabilities. Level 2: Inputs are quoted prices in active markets for similar assets or liabilities, or quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable or can be corroborated by observable market data for the asset or liability. Level 3: Inputs are unobservable for the asset or liability and are supported by little or no market activity. These fair values are determined using pricing models for which the assumptions utilize management’s estimates or market participant assumptions. For those financial instruments with no quoted market prices available, fair value is estimated using present value calculations or other valuation methods, as well as management’s best judgment with respect to current economic conditions, including discount rates and estimates of future cash flows. Other Comprehensive Income (Loss) The Company did not have any components of other comprehensive income (loss) for any of the periods presented. Net Income (Loss) Per Share Basic net income (loss) per share is computed using the two-class two-class in-the-money Reportable Segments Segment information is required to be presented in accordance with a “management approach,” which is the approach used by a Company’s chief operating decision-maker when reviewing operating segment information to make decisions, allocate resources and assess performance. An operating segment is defined as a component of the Company (1) that engages in business activities from which it may earn revenue and incur expense, (2) whose operating results are regularly reviewed by the Company’s chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (3) for which discrete financial information is available. The Company has determined that it operates its business in one operating segment—see Note 16—Segment Reporting. Recently Adopted Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments-Equity Method and Joint Ventures (Topic 323): Amendments to SEC Paragraphs Pursuant to Staff Announcements at the September 22, 2016 and November 17, 2016 EITF Meetings 2014-09 2016-02 2014-09 2016-02, On January 1, 2017, the Company adopted ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory 2015-11 On January 1, 2017, the Company adopted ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 2016-09 In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other: Simplifying the Test for Goodwill Impairment 2017-04 2017-04 Recently Issued Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date 2014-09 The FASB has issued the following additional ASUs to amend the guidance in ASU 2014-09, 2014-09: (1) In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) (2) In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing (3) In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-scope Improvements and Practical Expedients (4) In December 2016, the FASB issued ASU 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers The Company does not intend to early adopt the new revenue recognition guidance and therefore all of the ASUs noted above will be effective for us for the year ending December 31, 2019. The Company expects to begin evaluating the effect of the revenue recognition ASUs during the second quarter of 2018. The evaluation will include selecting a transition method for these revenue recognition ASUs and determining the effect that the updated standards will have on the historical and future consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) Topic 840, Leases 2016-02 In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Receipts and Cash Payments In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business In May 2017, the FASB issued ASU No. 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09

Business Acquisitions

Business Acquisitions	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Business Acquisitions	2. Business Acquisitions Acquisitions were accounted for as business combinations and the assets acquired and liabilities assumed were recognized based on the estimated fair values at the acquisition date as determined by the Company’s management, using information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. 2017 Acquisitions Annese & Associates, Inc. On July 14, 2017, the Company, through its subsidiary ConvergeOne, acquired Annese & Associates, Inc. (“Annese”) for cash consideration of $24,483,000 plus additional consideration of up to $4,000,000, contingent upon the achievement of certain gross profit targets for the twelve months ending June 30, 2018. The Company incurred transaction costs of $778,000 related to the acquisition and included the amount in transaction costs on the consolidated statements of income for the year ended December 31, 2017. The Company estimated the fair value of the contingent consideration to be approximately $956,000, based upon information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. Payment of the additional consideration, if any, is due during the third quarter of 2018. As of December 31, 2017, the fair value of contingent consideration of $956,000 is included in Accrued other liabilities in the Consolidated Balance Sheets. Based on the fair value measurement of the assets acquired and liabilities assumed, the Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill of approximately $9,906,000. The purchase price of the Annese acquisition was finalized in December 2017 resulting in a decrease of $1,550,000. The premium paid is attributed to Annese’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. Since the acquisition date of July 14, 2017, $36,385,000 of revenue and $1,648,000 of net income are included in the accompanying consolidated statements of income for the year ended December 31, 2017. As a result of the acquisition, a portion of the consideration, approximately $2,776,000, was placed in an escrow account. The funds in the escrow account are to secure the sellers’ and the Company’s indemnification obligations in the purchase agreement and for any post-closing purchase price adjustments. On December 18, 2017, the purchase price escrow of $200,000 was released to the Company. The remaining funds held in escrow of $2,576,000 after settlement of indemnification claims of the buyer will be paid to the sellers at a future date and are included in cash consideration paid in the table below. The fair value of accounts receivable was adjusted for approximately $2,323,000 for amounts not expected to be collected. SPS Holdco, LLC On August 16, 2017, the Company, through its subsidiary ConvergeOne, acquired SPS Holdco, LLC (“SPS”) for cash consideration of $51,125,000. The Company incurred transaction costs of $581,000 related to the acquisition and included the amount in transaction costs on the consolidated statements of income for the year ended December 31, 2017. Based on the fair value measurement of the assets acquired and liabilities assumed, the Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill of approximately $18,834,000. The purchase price of the SPS acquisition was finalized in December 2017 resulting in a decrease of $8,000,000. The premium paid is attributed to SPS’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. Since the acquisition date of August 16, 2017, $91,576,000 of revenue and $1,410,000 of net loss are included in the accompanying consolidated statements of income for the year ended December 31, 2017. As a result of the acquisition, a portion of the consideration, approximately $8,000,000, was placed in an escrow account for any post-closing purchase price adjustments. On December 18, 2017, the full amount of the escrow of $8,000,000 was released to the Company. The fair value of accounts receivable was adjusted for approximately $3,148,000 for amounts not expected to be collected. Rockefeller Group Technology Solutions, Inc. On September 15, 2017, the Company, through its subsidiary ConvergeOne, acquired Rockefeller Group Technology Solutions, Inc. (“RGTS”) for cash consideration of $20,862,000. The Company incurred transaction costs of $612,000 related to the acquisition and included the amount in transaction costs on the consolidated statements of income for the year ended December 31, 2017. Based on the fair value measurement of the assets acquired and liabilities assumed, the Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill of approximately $5,471,000. The purchase price of the RGTS acquisition was finalized in January 2018 resulting in an increase of $10,000. The premium paid is attributed to RGTS’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. Since the acquisition date of September 15, 2017, $8,242,000 of revenue and $192,000 of net income are included in the accompanying consolidated statements of income for the year ended December 31, 2017. As a result of the acquisition, a portion of the consideration, approximately $2,200,000, was placed in an escrow account. The total escrow is included in cash consideration paid in the table below. The funds in the escrow account are to secure the sellers’ and the Company’s indemnification obligations in the purchase agreement and for any post-closing purchase price adjustments. In January 2018, the purchase price escrow of $600,000 was released to the sellers. The remaining funds held in escrow after settlement of indemnification claims of the buyer will be paid to the sellers at a future date and are included in cash consideration paid in the table below. The fair value of accounts receivable was adjusted for approximately $565,000 for amounts not expected to be collected. AOS, Inc. On December 15, 2017, the Company, through its subsidiary ConvergeOne, acquired AOS, Inc. (“AOS”) for cash consideration of $65,859,000. The Company incurred transaction costs of $459,000 related to the acquisition and included the amount in transaction costs on the consolidated statements of income for the year ended December 31, 2017. The acquisition fair value measurement is preliminary and subject to completion of the valuation of AOS and further management reviews and assessments of the preliminary fair value of the assets acquired and liabilities assumed. The adjustments arising from the completion of the outstanding matters may materially affect the preliminary purchase accounting. The purchase price allocation will be finalized as soon as practicable within the measurement period, but not later than one year following the acquisition date. Based on the preliminary fair value measurement of the assets acquired and liabilities assumed, the Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in preliminary goodwill of approximately $40,460,000. The premium paid is attributed to AOS’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. Since the acquisition date of December 15, 2017, $12,802,000 of revenue and $1,275,000 of net income are included in the accompanying consolidated statements of income for the year ended December 31, 2017. As a result of the acquisition, a portion of the consideration, approximately $1,945,000, was placed in an escrow account. The total escrow is included in cash consideration paid in the table below. The funds in the escrow account are to secure the sellers’ and the Company’s indemnification obligations in the purchase agreement and for any post-closing purchase price adjustments. The funds held in escrow after settlement of indemnification claims of the buyer will be paid to the sellers at a future date. The fair value of accounts receivable was adjusted for approximately $500,000 for amounts not expected to be collected. The following summarizes the fair value of the assets acquired and liabilities assumed (in thousands) for acquisitions completed in 2017: Annese SPS RGTS AOS Total Assets Acquired: Cash $ 92 $ 8,426 $ — $ 10,886 $ 19,404 Trade accounts receivable 12,321 34,543 1,685 22,321 70,870 Inventories 3,161 6,264 20 3,057 12,502 Prepaid expenses 2,492 1,823 1,501 645 6,461 Deferred customer support contract costs — 14,366 — — 14,366 Deferred income taxes 1,326 10,448 — — 11,774 Property and equipment 960 15,146 4,394 1,417 21,917 Goodwill 9,906 18,834 5,471 40,460 74,671 Customer relationships 7,418 25,985 8,131 19,300 60,834 Trademarks 514 804 — 1,350 2,668 Noncompetition agreements — — 465 1,500 1,965 Total assets acquired 38,190 136,639 21,667 100,936 297,432 Liabilities Assumed: Accounts payable and accrued expenses (11,135 ) (51,376 ) (805 ) (33,210 ) (96,526 ) Customer deposits (29 ) (7,547 ) — (1,867 ) (9,443 ) Deferred revenue (1,587 ) (26,591 ) — — (28,178 ) Total liabilities assumed (12,751 ) (85,514 ) (805 ) (35,077 ) (134,147 ) Net assets acquired $ 25,439 $ 51,125 $ 20,862 $ 65,859 $ 163,285 The expected lives of the acquired amortizable intangible assets are five years for customer relationships, two years for trademarks and 2-3 years Deferred income tax assets acquired relate primarily to deferred revenue. The fair value measurements for AOS are preliminary including the fair value of tangible assets, intangible assets subject to amortization, goodwill, liabilities assumed, and deferred income taxes. The fair value measurements for Annese, SPS and RGTS were final at December 31, 2017, with the exception of the fair value of accounts receivable, inventory excess and obsolescence reserves, accrued expenses, and deferred income taxes. We expect the fair value measurement process to be completed no later than one year from the acquisition date. Purchase price and fair value adjustments to preliminary amounts were made during the fourth quarter of 2017 as follows: Annese SPS RGTS Net assets acquired as at September 30, 2017 $ 30,033 $ 59,125 $ 20,852 Purchase price and fair value adjustments: Increase (decrease): Current assets (480 ) (4,710 ) (206 ) Property and equipment — (5,209 ) 31 Goodwill (7,803 ) (4,594 ) (3,715 ) Intangible assets 2,193 4,899 4,000 (Increase) decrease: Current liabilities 170 (8,834 ) (100 ) Deferred income taxes 1,326 10,448 — (4,594 ) (8,000 ) 10 Net assets acquired as at December 31, 2017 $ 25,439 $ 51,125 $ 20,862 Unaudited Pro-Forma Following are the supplemental consolidated results of the Company on an unaudited pro forma basis, as if the 2017 acquisitions had been consummated on January 1, 2016 for the year ended December 31, 2016 and 2017 (in thousands): Year Ended 2017 2016 Revenue $ 1,307,148 $ 1,414,520 Net (loss) income $ (21,915 ) $ 3,960 These pro forma results were based on estimates and assumptions, which the Company believes are reasonable. They are not the results that would have been realized had the Company been a combined company during the periods presented and are not necessarily indicative of consolidated results of operations in future periods. The pro forma results include adjustments primarily related to purchase accounting adjustments. 2015 Acquisitions SIGMAnet, Inc. On December 4, 2015, the Company, through its subsidiary Solutions, acquired SIGMAnet for cash consideration of $47,851,000. The acquisition was accounted for as a business combination. Accordingly, the purchase price was allocated to the assets acquired and liabilities assumed based on the estimated fair values at the acquisition date as determined by the Company’s management, using information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. The Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill recorded of $27,820,000. The premium paid is attributed to SIGMAnet’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. The results of the acquisition are included in the accompanying consolidated statements of income from the acquisition date forward. As of December 31, 2015, the purchase price was allocated on a preliminary basis to the tangible and identifiable intangible assets acquired and the liabilities assumed based on the estimated fair values at the acquisition date, as determined by the Company’s management, based upon information currently available, current assumptions as to future operations, and consideration of market conditions. Due to the timing of the acquisition, the Company did not complete the final purchase price allocation until 2016. Adjustments to the preliminary amounts during the measurement period, which were the result of information that existed as of the acquisition date, were recognized prospectively. The adjustments resulted in an increase in goodwill of $13,634,000, a decrease in finite-life intangibles of $12,567,000, a decrease in tangible assets of $1,345,000, and an increase in accounts payable and accrued expenses of $787,000. The impact on the consolidated statement of income was a decrease in cost of revenue of $157,000 and a decrease in operating expenses of $60,000 and an increase in income before income taxes of $217,000. As a result of the acquisition, a portion of the consideration, $2,925,000, was placed in an escrow account. All of the escrow was released to the sellers in 2016 and is included in cash consideration paid in the table below. The fair value of accounts receivable was adjusted for approximately $2,202,000 for amounts not expected to be collected. Sunturn, Inc. On May 19, 2015, the Company, through its subsidiary NACR, acquired all of the outstanding stock of Sunturn for cash consideration of $8,744,000. The acquisition was accounted for as a business combination. Accordingly, the purchase price has been allocated to the assets acquired and liabilities assumed based on the estimated fair values at the acquisition date as determined by the Company’s management, using information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. The Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill recorded of $2,813,000. The premium paid is attributed to Sunturn’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. The results of the acquisition are included in the accompanying consolidated statements of income from the acquisition date forward. During 2016, the Company settled the working capital adjustment provision of the purchase agreement with the sellers resulting in an increase in goodwill of $650,000. The fair value of accounts receivable was adjusted for approximately $95,000 for amounts not expected to be collected. MSN Communications, Inc. On May 19, 2015, the Company, through its subsidiary Solutions, acquired all of the outstanding stock of MSN for cash consideration of $18,817,000. The acquisition was accounted for as a business combination. Accordingly, the purchase price has been allocated to the assets acquired and liabilities assumed based on the estimated fair values at the acquisition date as determined by the Company’s management, using information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. The Company paid a premium over the fair value of the net tangible and identified intangible assets acquired, resulting in goodwill recorded of $6,971,000. The premium paid is attributed to MSN’s presence in the business communications industry and its growth potential. Goodwill recognized is deductible for income tax purposes. The results of the acquisition are included in the accompanying consolidated statements of income from the acquisition date forward. During 2016, the Company settled the working capital adjustment provision of the purchase agreement with the sellers resulting in an increase in goodwill of $172,000, which was accounted for prospectively. In addition, the Company finalized the fair value determination of accounts payable and accrued expenses as of the acquisition date, which was accounted for prospectively. The final determination of accounts payable and accrued expenses resulted in a decrease in goodwill of $237,000. The fair value of accounts receivable was adjusted for approximately $805,000 for amounts not expected to be collected. The following summarizes the estimated fair value of the assets acquired and liabilities assumed (in thousands) for acquisitions completed in 2015: Sigmanet Sunturn MSN Total Assets Acquired: Cash $ 6,537 $ 1,038 $ 1,035 $ 8,610 Trade accounts receivable 27,206 5,899 17,459 50,564 Inventories 1,055 — — 1,055 Prepaid expenses 167 144 191 502 Deferred income taxes 363 — — 363 Property and equipment 1,973 312 700 2,985 Goodwill 27,820 2,813 6,971 37,604 Customer relationships 10,336 4,482 11,493 26,311 Trademarks 1,842 199 757 2,798 Noncompetition agreements 164 86 351 601 Total assets acquired 77,463 14,973 38,957 131,393 Liabilities Assumed: Accounts payable and accrued expenses (28,462 ) (5,429 ) (17,818 ) (51,709 ) Customer deposits (1,072 ) (800 ) (2,322 ) (4,194 ) Deferred revenue (78 ) — — (78 ) Total liabilities assumed (29,612 ) (6,229 ) (20,140 ) (55,981 ) Net assets acquired $ 47,851 $ 8,744 $ 18,817 $ 75,412

Trade Accounts Receivable

Trade Accounts Receivable	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Trade Accounts Receivable	3. Trade Accounts Receivable The following is a roll forward of our allowance for doubtful accounts (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 1,024 $ 383 $ 150 Amounts expensed 1,006 1,090 353 Deductions (1) (550 ) (449 ) (120 ) Balance at end of period $ 1,480 $ 1,024 $ 383 (1) Deductions include actual accounts written off, net of recoveries.

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property and Equipment	4. Property and Equipment Property and equipment and accumulated depreciation is as follows (in thousands): Estimated Useful Lives December 31, 2017 2016 Furniture, fixtures and equipment Five to 10 years $ 31,858 $ 10,413 Software 3 years 21,172 14,265 Leasehold improvements Lesser of life or 3,855 1,755 56,885 26,433 Less accumulated depreciation (20,226 ) (11,078 ) $ 36,659 $ 15,355

Goodwill and Finite-Life Intang

Goodwill and Finite-Life Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Finite-Life Intangible Assets	5. Goodwill and Finite-Life Intangible Assets Goodwill The changes in the carrying amount of goodwill is as follows (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 258,570 $ 244,351 $ 220,966 Acquisitions 74,671 — 23,385 Measurement period adjustments — 14,219 — Other (1,785 ) — — Balance at end of period $ 331,456 $ 258,570 $ 244,351 During the year ended December 31, 2016, goodwill increased by $14,219,000 associated with measurement period adjustments to acquisitions made in 2015. During the year ended December 31, 2017, goodwill increased by $74,671,000 associated with acquisitions made in 2017 including measurement period adjustments for those acquisitions. Measurement period adjustments were recorded prospectively under ASU 2015-16. Finite-life Intangibles In connection with business acquisitions the Company acquired certain customer relationships, trademarks, noncompetition agreements, and internally developed software. The Company’s management determined, based upon information available at the time of acquisition and on certain assumptions as to future operations and market considerations, the values of the finite-life intangibles as follows: trademarks, using the relief from royalty method; and customer relationships, noncompetition agreements and internally developed software using, in part, a discounted cash flow method. The amortization periods were estimated by management, considering both the economic and legal lives, as well as the expected period of benefit. Finite-life intangible assets consist of the following (in thousands): Useful Life Weighted-Average Remaining Life (Years) (1) December 31, 2017 2016 Customer relationships $ 208,451 $ 147,617 5-10 5.4 Trademarks 38,546 35,878 2-10 6.0 Noncompetition agreements 6,241 4,276 1-5 4.4 Internally developed software 541 541 10 6.8 253,779 188,312 Less accumulated amortization (80,137 ) (53,692 ) Finite-life intangibles, net $ 173,642 $ 134,620 (1) As of December 31, 2017 During the years ended December 31, 2017, 2016 and 2015, aggregate amortization expense was $26,445,000, $22,456,000, and $20,247,000, respectively. Based on the recorded intangible assets at December 31, 2017, estimated amortization expense is expected to be as follows (in thousands): Years Ending December 31, 2018 $ 34,747 2019 34,535 2020 31,190 2021 28,062 2022 23,869 2023 and thereafter 21,239 Total $ 173,642

Debt

Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Debt	6. Debt Long-term debt consists of the following (in thousands): December 31, 2017 2016 Revolving line-of-credit $ 20,000 $ — Term loan facility 562,325 — First lien term loan — 324,138 Second lien term loan — 80,000 Total long-term debt 582,325 404,138 Less unamortized original issue discount (5,623 ) (2,761 ) Less unamortized deferred financing costs (4,626 ) (9,089 ) Total long-term debt, net of debt issuance costs 572,076 392,288 Less current maturities (5,652 ) (3,324 ) Long-term debt, net $ 566,424 $ 388,964 June 2017 Credit Facilities Senior Secured Term Loan On June 20, 2017, Holdings and our subsidiary, and direct corporate parent of Holdings, C1 Intermediate Corp. (“Intermediate”) entered into a Term Loan Agreement (the “Term Loan Agreement”) with JPMorgan Chase Bank, N.A. as the administrative agent and collateral agent. The Term Loan Agreement provides for senior secured term loans in the aggregate principal amount of $430,000,000 (the “Term Loans”). A portion of the proceeds of the Term Loans were used to repay the June 2014 Credit Facilities described below and to pay debt issuance costs. The remaining proceeds will be used for working capital needs and general corporate purposes. Principal installments in the amount of $1,413,000 are due on the last business day of each quarter, commencing September 30, 2017, with the remaining outstanding principal amount to be paid on its maturity date of June 20, 2024. The obligations under the Term Loan Agreement are unconditionally and irrevocably guaranteed by Intermediate and certain restricted subsidiaries of Holdings. In addition, the obligations under the Term Loan Agreement are secured by a first priority lien on substantially all assets of Holdings and each guarantor, except for the assets secured by a first priority lien under the Revolving Loan Credit Agreement discussed below, on which the Company has granted a second priority lien to secure the obligations under the Term Loan Agreement. In connection with the Term Loan Agreement, Intermediate, Holdings and its restricted subsidiaries are subject to various restrictive covenants, including, among other things, restrictions on dividends. In January, 2018, the Term Loan Agreement was amended to further define restricted payments and other terms in connection with the proposed Merger with Forum. Prepayments of principal are required under the agreement based upon a calculation of excess cash flows commencing with the year ending December 31, 2018. The Company is permitted to repay outstanding Term Loans at any time without premium or penalty, unless such payment is made prior to June 20, 2018 in connection with a repricing transaction as described in the Term Loan Agreement, in which case the Company is required to pay a premium of 1% of the Term Loans so prepaid. The Term Loans bear interest at 3.75% above the alternate base rate or 4.75% above the Eurodollar rate as described in the agreement. Interest on the Eurodollar rate Term Loans is payable on the last day of the Interest Period, as defined in the Term Loan Agreement, and interest on alternate base rate Term Loans is payable on the last day of each quarter. Borrowings under the Term Loans had an interest rate of 6.45% at December 31, 2017. The Company incurred financing transaction costs of approximately $4,778,000 and an original issue discount of $4,300,000 related to the Term Loan Agreement which the Company will amortize over the term of the credit agreement. In July, 2017, Holdings borrowed an additional $75,000,000 of term loans under an incremental amendment to the Term Loan Agreement, which loans are part of the same class of, and on the same terms as, the initial Term Loans. Proceeds from the incremental amendment were used for the Annese and SPS acquisitions, discussed in Note 2. In October, 2017, Holdings borrowed an additional $60,000,000 of term loans under an incremental amendment to the Term Loan Agreement, which loans are part of the same class of, and on the same terms as, the initial Term Loans. Proceeds from the incremental amendment were used to acquire AOS, discussed in Note 2—Business Acquisitions. The Company incurred financing transaction costs of approximately $2,208,000 and an original issue discount of $713,000 related to the incremental term loan joinder agreements. The Company expensed $1,793,000 of direct issuance costs incurred within interest expense on the consolidated statement of income and will amortize $1,128,000 over the remaining term of the credit agreement. Senior Secured Revolving Loan Facility On June 20, 2017, Holdings and Intermediate entered into a Revolving Loan Credit Agreement (the “Revolver Agreement”) with Wells Fargo Commercial Distribution Finance, LLC (“Wells Fargo”) as the administrative agent and collateral agent and as Floorplan Funding Agent. The Revolver Agreement provides a senior secured revolving loan facility of $150,000,000 aggregate principal amount of revolving loans and amends and restates the existing floorplan agreement with Wells Fargo in order to extend credit in the form of a floorplan subfacility. The Revolver Agreement matures on June 20, 2022. The obligations under the Revolver Agreement are unconditionally and irrevocably guaranteed by Intermediate and certain restricted subsidiaries of Holdings. The obligations under the Revolver Agreement are secured by a first priority lien on the receivable accounts, inventory, and deposit and securities accounts, and a second priority lien on substantially all of the other assets of Holdings and each guarantor. The aggregate principal amount of the revolving loans and floorplan advances is limited to a Borrowing Base as defined by the Revolver Agreement, reduced by outstanding letters of credit. Mandatory prepayments are required in the event that the sum of the outstanding principal amount of the revolving loans, letter of credit and floorplan advances exceeds the less of (i) the aggregate revolving commitments of $150,000,000 or (ii) the Borrowing Base, in an amount equal to the excess. The Revolver Agreement contains a number of covenants including, among other things, requirements to maintain certain financial ratios and restrictions on dividends. If the Revolving Exposure, as described in the Revolver Agreement, exceeds the less of the revolving loan commitments or the borrowing base, the Revolver Agreement requires the Company to prepay outstanding Revolving Loans in an aggregate amount equal to such excess. The Company is permitted to repay outstanding Revolving Loans at any time without premium or penalty. Borrowings under the Revolver Agreement bear interest at rates ranging from 0.25% to 0.75% above the alternate base rate or from 1.25% to 1.75% above the Eurodollar rate as described in the Revolver Agreement, in each case based on availability under the Revolver Agreement as of such interest payment date. A commitment fee equal to 0.250% or 0.375% per annum (based on availability under the Revolver Agreement) times the average daily unused amount of the available revolving commitments is payable on the last day of each quarter. At December 31, 2017, the Borrowing Base was $150,000,000. There were no letters of credit outstanding, the outstanding balance on the revolver was $20,000,000 and the outstanding floorplan balance was $32,322,000; therefore, the maximum borrowing available was $97,678,000 at December 31, 2017. The Company incurred financing transaction costs of approximately $927,000 related to the Revolver Agreement which the Company will amortize over the term of the agreement. June 2014 Credit Facilities In June 2014, Holdings, Intermediate and certain subsidiaries of Holdings obtained financing from a loan syndication with several lenders and entered into first and second lien credit agreements containing a revolving line-of-credit line-of-credit Borrowings under the credit agreements were secured by substantially all assets of Holdings, Intermediate and each guarantor. In connection with the credit agreements, Holdings, Intermediate and each guarantor were subject to various restrictive covenants, including, among other things, requirements to maintain certain financial ratios and restrictions on dividends. Prepayments of principal were required under the agreements for the first lien and second lien term loans based upon a calculation of excess cash flows commencing with the year ending December 31, 2015. There were no prepayments of principal required at December 31, 2015 or 2016. Advances under the revolving line of credit bore interest at 4.00% (applicable margin) above the base rate or 5.00% above the Eurocurrency rate as defined in the agreement. Borrowings under the first and second lien term loans bore interest at 4.00% and 7.00%, respectively, above the base rate or 5.00% and 8.00%, respectively, above the Eurocurrency rate as defined in the agreement. Interest is payable on the last day of the interest period as defined in the agreements. In October 2016, the first and second lien credit agreements including the revolving line-of-credit Certain lenders did not participate in the amendment to the credit agreements, therefore the amendment was accounted for as a debt modification with respect to amounts that remained in the syndicate and debt extinguishment with respect to the amounts that exited the syndicate. In accordance with the applicable accounting guidance for debt modification and extinguishment, and for interest costs accounting, the Company expensed $1,470,000 in extinguishment costs incurred, the remaining unamortized debt issuance costs of $989,000 and the remaining unamortized original issue discount of $288,000 relating to the amounts that exited the syndicate and amounts considered “substantially different.” The Company reported these expenses within interest expense on the consolidated statement of income for the year ended December 31, 2016. The Company incurred financing transaction costs of approximately $6,068,000 related to the amendments and an original issue discount $1,350,000. In accordance with the accounting for debt modification, the Company expensed $1,739,000 of direct issuance costs incurred within interest expense on the consolidated statement of income and will amortize $5,679,000 over the remaining term of the credit agreement. In March 2017, the Company entered into an incremental term loan joinder agreement with its lender to increase the first lien term loan commitments in an aggregate amount of $50,000,000, subject to various terms and conditions. The interest rates, security agreement, restrictive covenants, and maturity date was the same as the outstanding first lien term loans. There was a commitment fee for the unused portion of the incremental term loan. The Company incurred financing transaction costs of approximately $703,000 related to the incremental term loan joinder agreement. The Company expensed $556,000 of direct issuance costs incurred within interest expense on the consolidated statement of income and will amortize $147,000 over the remaining term of the credit agreement. The Company made an initial $10,000,000 draw under the new agreement for working capital purposes in March 2017 and received proceeds of $9,353,000, net of related fees and expenses. Borrowings under the first and second lien term loans had interest rates of 6.00% and 9.00%, respectively, at December 31, 2015. Borrowings under the first and second lien term loans had interest rates of 6.375% and 10.00%, respectively, at December 31, 2016. The interest rate on the revolving line-of-credit line-of-credit line-of-credit On June 20, 2017, concurrent with entering into the Term Loan Agreement and Revolver Agreement, we terminated the June 2014 Credit Facilities including the first and second lien credit agreements containing a revolving line-of-credit Floor Planning Facilities In February 2016, a distribution financing agreement was signed with GE Commercial Distribution Finance Corporation (“GE”), for financing inventory purchases. The agreement provided for a $10,000,000 credit limit collateralized by certain accounts receivable balances. Advances under the agreement must be paid within 60 days or by the end of the free flooring period (which ranges from 45-90 In March 2017, the Company amended and restated the foregoing existing floor planning facilities with Wells Fargo pursuant to an amended and restated inventory financing agreement. The agreement allowed for the purchase of inventory up to certain limitations of eligible accounts receivable and inventory balances. Advances under the agreement are collateralized by accounts receivable and inventory subject to the agreement. The facility available to the Company under the agreement is a discretionary facility with a former base credit line of up to $65,000,000. Advances under the agreement must have been paid within 60 days or by the end of the free flooring period (which ranges from 45-90 On June 20, 2017, concurrent with entering into the Revolver Agreement, the Company amended and restated the foregoing existing floor planning facilities with Wells Fargo to extend credit in the form of floorplan advances up to an aggregate principal amount of $150,000,000. If advances under the agreement are not paid within 60 days or by the end of the free flooring period (which ranges from 45-90 The outstanding balance of floorplan advances at December 31, 2017 was $32,322,000 and is included in accounts payable on the consolidated balance sheets. Debt Issuance Costs The Company amortizes original issue discount and deferred financing costs (debt issuance cost) using the effective interest method over the life of the related instrument, and such amortization is included in interest expense in the consolidated statements of income. Debt issuance costs are as follows (in thousands): Revolving Term Loan First Lien Second Lien Total Balance as of December 31, 2014 $ 321 $ — $ 6,873 $ 3,276 $ 10,470 Additions — 1,418 — 1,418 Amortization (72 ) (1,449 ) (507 ) (2,028 ) Balance as of December 31, 2015 249 — 6,842 2,769 9,860 Additions 2,393 — 2,567 719 5,679 Extinguishment — — (35 ) (1,242 ) (1,277 ) Amortization (253 ) — (1,675 ) (484 ) (2,412 ) Balance as of December 31, 2016 2,389 — 7,699 1,762 11,850 Additions 927 10,206 147 — 11,280 Extinguishment (1,933 ) — (6,775 ) (1,577 ) (10,285 ) Amortization (554 ) (786 ) (1,071 ) (185 ) (2,596 ) Balance as of December 31, 2017 $ 829 $ 9,420 $ — $ — $ 10,249 Long-term Debt Maturities The approximate future principal payments on long-term debt at December 31, 2017, is as follows (in thousands): Years Ending December 31, Debt 2018 $ 5,652 2019 5,652 2020 5,652 2021 5,652 2022 5,652 2023 and thereafter 534,065 Total 562,325 Revolving line-of-credit 20,000 Less unamortized debt issuance costs (10,249 ) Total debt $ 572,076

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Stockholders' Equity (Deficit)	7. Stockholders’ Equity (Deficit) The Company has two classes of common stock authorized, Class A and Class B. Voting Except as otherwise expressly provided in the Company’s Amended and Restated Certificate of Incorporation, or the Restated Certificate, each holder of Class A Common Stock is entitled to one vote per share. Except as provided by law and in the event of any increase or decrease in the number of authorized shares of Class B Common Stock, the holders of Class B Common Stock have no voting rights. Conversion Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock immediately prior to the closing of a firmly underwritten public offering, or a Public Offering, of the Company’s common stock. Class B Common Stock will continue to be subject to vesting conditions as discussed below. Upon such automatic conversion, any declared and unpaid dividends shall be paid in accordance with the Restated Certificate. Dividends The holders of the Class A Common Stock are entitled to receive dividends in preference to the holders of the Class B Common Stock until the holders of the Class A Common Stock have received at least $1.00 per share (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares), or the Original Issue Price. After the payment of the Class A preferential dividends, the holders of the Class A Common Stock and Class B Common Stock are entitled to share equally, on a per share basis, in all dividends declared by the Board of Directors. On October 17, 2016, the Board of Directors declared a dividend payable to Class A Common stockholders in the cumulative amount of approximately $89,862,000. The dividend was paid in conjunction with the amendment to the first and second lien credit agreements and thus, permitted by the lenders. The dividends paid exceeded the Company’s retained earnings at the time of declaration by $80,925,000 and, as a result, the excess was recorded as a reduction to paid-in-capital. Restricted Class B Common Stock In June 2014, we issued 11,674,430 shares of Class B Common Stock to employees and members of the Board of Directors in connection with the acquisition of Holdings. These shares are subject to vesting and the shares are subject to a repurchase right held by us, as further described below. These shares of Class B Common Stock were issued to each holder as 50% Tranche 1 shares, 25% Tranche 2 shares and 25% Tranche 3 shares. The shares of Class B Common Stock were valued at the estimated fair value at the time of issuance and are being amortized as compensation expense on a straight-line basis over the period in which they are earned by the individuals. The grant-date fair value of our awards was calculated using the Black-Scholes option-pricing model with the weighted-average assumptions listed in Note 8—Stock-based Compensation. The fair value of the common stock has historically been determined by management, in part, based upon periodic valuation studies obtained from a third party valuation firm. In performing our valuation, the valuation firm engaged in discussions with management, analyzed historical and forecasted financial statements, and reviewed corporate documents. In addition, these valuation studies were based on a number of assumptions, including industry, general economic and market conditions that could reasonably be evaluated at the time of the valuation. Tranche 1 shares vest over a five-year period; 40% vest on the two-year Tranche 2 shares vest on the day prior to the ten-year paid-in Tranche 3 shares vest on the day prior to the ten-year paid-in Upon the termination of continuous service of a holder, other than termination by the Company without cause, the holder’s death or permanent disability, or resignation by holder following certain reductions in salary, the Company may repurchase the Class B shares held by such holder at a price of $0.01 per share. Upon the termination of continuous service of a holder by the Company with cause, the Company may repurchase the Class B shares held by such holder at a price of $0.01 per share. Upon the termination of continuous service of a holder by the Company without cause, following the holder’s death or permanent disability, or resignation by holder following certain reductions in salary, the Company may repurchase the unvested Class B shares at a price of $0.01 per share and the Company may repurchase the vested Class B shares at a price equal to the fair market value of such shares. Upon closing of the Merger on February 22, 2018, all of the Company’s shares of Class B Common Stock became fully vested and exercisable. Restricted Class A Common Stock In June 2014, the Company issued 4,208,258 shares of Class A Common Stock to employees and members of the Board of Directors in connection with the acquisition of Holdings. These shares are subject to a repurchase right held by us. Upon the termination of continuous service of a holder, other than termination by the Company without cause, the holder’s death or permanent disability, or resignation by holder following certain reductions in salary, the Company may repurchase the Class A shares held by such holder at a price of $1.00 per share. Upon the termination of continuous service of a holder by the Company with cause, the Company may repurchase the Class A shares held by such holder at a price of $1.00 per share. Upon the termination of continuous service of a holder by the Company without cause, following the holder’s death or permanent disability, or resignation by holder following certain reductions in salary, the Company may repurchase the Class A shares at a price equal to $1.00 per share, plus 5% of $1.00 per share measured per annum (on a non-compounding The repurchase right with respect to the Class A shares shall lapse and terminate immediately following a public offering or change in control. See Note 8—Stock-based Compensation regarding a summary of shares vested during the periods presented in the financial statements.

Stock-based Compensation

Stock-based Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based Compensation	8. Stock-based Compensation The Company’s 2014 Equity Incentive Plan, or the Plan, provides for the issuance of incentive stock options, nonqualified stock options, stock appreciation rights, restricted shares, and other awards. Pursuant to the Plan, the Company issued options to purchase Class B Common Stock in 2014 to management employees in connection with the acquisition of Holdings. Additional options were issued to employees, consultants and non-employee Certain of the options allow for early exercise, and the shares acquired via early exercise of the options are subject to continued vesting and a repurchase right held by us. As of December 31, 2017 and 2016, there were 5,517,524 shares and 4,952,155 shares of Class B Common Stock reserved for issuance under the Plan, respectively. As of December 31, 2017 and 2016, 5,517,524 shares and 4,902,155 shares, net of forfeitures were granted, respectively. As of December 31, 2017, there are no shares remaining for future grants. Options The Company’s option awards are typically issued with one of three vesting schedules: Tranche 1, Tranche 2 and Tranche 3. Tranche 1 options vest and become exercisable over a five-year period; 40% vest on the two-year Tranche 2 options vest and become exercisable on the day prior to the ten-year paid-in Tranche 3 options vest and become exercisable on the day prior to the ten-year paid-in Upon closing of the Merger on February 22, 2018, all of the Company’s options to purchase shares of Class B Common Stock became fully vested and exercisable. Equity awards were valued at their estimated fair value at the time of issuance and are being amortized as compensation expense on a straight-line basis over the period in which they are earned by the individuals. The grant-date fair value of our option grants was calculated using the Black-Scholes option-pricing model with the following weighted-average assumptions: Year Ended 2017 2016 Expected life (in years) 8.8 8.6 Expected volatility 42.8 % 43.1 % Dividend yield 0.0 % 0.0 % Risk-free interest rate 2.1 % 2.1 % As of December 31, 2017 and 2016, outstanding Tranche 1 options to purchase Class B common stock issued to certain employees and directors were 261,000 and 219,000, respectively, of which 95,000 were vested as of December 31, 2017. As of December 31, 2017 and 2016, options to purchase Class B Common Stock that only vest upon the Company experiencing a change of control or Public Offering Sale and provide a return of value when Clearlake achieves an exit return target, or otherwise cliff vest after 10 years from issuance, as described above, were 1,266,000 and 1,254,000, respectively. A summary of the stock option activity is presented below (in thousands, except per share amounts): Shares Weighted- Weighted- Grant-Date Aggregate (1) Weighted- Balance at January 1, 2015 1,864 $ 0.01 $ 0.15 $ — 9.9 Granted 1,057 0.01 0.15 Forfeited (210 ) 0.01 0.15 Exercised (1,961 ) 0.01 0.15 Balance at December 31, 2015 750 0.01 0.15 $ 1,208 8.8 Granted 773 1.62 0.82 Forfeited (50 ) 1.62 0.87 Balance at December 31, 2016 1,473 0.80 0.48 $ 3,829 8.5 Granted 616 3.40 1.63 Forfeited (30 ) 0.01 0.15 Exercised (531 ) 3.40 1.66 Balance at December 31, 2017 1,528 $ 0.96 $ 0.54 $ 7,319 7.6 Fully vested and expected to vest at December 31, 2017 1,479 $ 0.93 $ 0.52 $ 7,124 7.6 Exercisable at December 31, 2017 95 $ 1.62 $ 0.66 $ 169 8.1 (1) Aggregate intrinsic value represents the difference between the estimated fair value of the underlying common stock and the exercise price of outstanding, in-the-money The table above includes approximately 529,000 options granted to a non-employee The activity of the unvested options is presented below (in thousands, except per share amounts): Shares Weighted- Balance at January 1, 2015 1,864 $ 0.15 Granted 1,057 0.15 Vested — Forfeited (210 ) 0.15 Exercised (1,961 ) 0.15 Balance at December 31, 2015 750 0.15 Granted 773 0.82 Vested (15 ) 0.65 Forfeited (50 ) 0.87 Balance at December 31, 2016 1,458 0.47 Granted 616 1.63 Vested (80 ) 0.66 Exercised (531 ) 1.66 Forfeited (30 ) 0.15 Balance at December 31, 2017 1,433 $ 0.53 Class B Common Stock As of December 31, 2017 and 2016, 7,415,336 shares of Class B Common Stock vest upon the Company experiencing a change of control or Public Offering and provide a return of value when Clearlake achieves an exit return target, or otherwise cliff vest after 10 years from issuance, as described above. The activity for Class B common stock is presented below (in thousands, except per share amounts): Shares Weighted- Unvested and outstanding at January 1, 2015 13,142 $ 0.15 Granted or issued 1,961 0.15 Vested — Repurchased (401 ) 0.15 Unvested and outstanding at December 31, 2015 14,702 Vested (2,835 ) 0.15 Unvested and outstanding at December 31, 2016 11,867 0.15 Granted 531 1.66 Vested (1,402 ) 0.15 Repurchased (402 ) 0.15 Unvested and outstanding at December 31, 2017 10,594 $ 0.23 The table above includes approximately 529,000 shares issued to a non-employee Expense During the years ended December 31, 2017, 2016 and 2015, total estimated fair value of share awards and options granted to purchase Class B Common Stock was $1,000,000, $636,000, and $88,000, respectively. Compensation expense recognized for equity awards for the years ended December 31, 2017, 2016 and 2015, was $1,289,000, $1,057,000 and $233,000, respectively. At December 31, 2017, there was $4,048,000, of unrecognized expense related to nonvested equity awards. Upon closing of the Merger on February 22, 2018, the full amount of unrecognized stock-compensation Included within compensation expense are amounts related to a 2015 non-employee re-measured re-measurement non-employee non-employee

Net Income (Loss) per Share

Net Income (Loss) per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Net Income (Loss) per Share	9. Net Income (Loss) per Share The Company applies the two-class Prior to October 2016, holders of Class B Common Stock did not participate as they were not entitled to receive dividends since holders of Class A Common Stock had not received the full preferential dividends. Class A common stockholders received their preferential dividend of $89,862,000 in October 2016 resulting in an excess dividend above earnings and a theoretical net loss attributable solely to Class A common stockholders of $81,513,000 for the year ended December 31, 2016. Class B common stockholders do not participate in a loss. The following is a reconciliation of the weighted-average number of shares used to compute basic and diluted net income (loss) per share (in thousands, except per share amounts): Year Ended December 31, 2017 2016 2015 Numerator : Net income (loss) attributable to Class A common stockholders $ (8,021 ) $ 8,349 $ 4,023 Denominator: Weighted-average Class A common shares—basic 89,778 89,862 89,866 Effect of dilutive securities: Stock options and non-vested — — — Weighted-average Class A common shares—diluted 89,778 89,862 89,866 Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ (0.09 ) $ 0.09 $ 0.04 Had the distributions been made in prior years, the net income per share for the year ended December 31, 2016, considering both A and B common stock, would have been $0.09. There were no Class A dilutive securities for the years ended December 31, 2017 and 2016.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	10. Fair Value Measurements For certain of the Company’s financial instruments, including cash, accounts receivables, accounts payable, and accrued expenses, the carrying value approximates fair value due to the short-term maturities of these instruments. Contingent consideration resulting from the acquisition of Annese on July 14, 2017, is recorded at fair value of approximately $956,000 as of December 31, 2017. The fair value of the contingent consideration liability was estimated using significant other unobservable inputs (Level 3 of the fair value hierarchy) based upon a risk-adjusted present value of the expected payments by us. The fair value of the Company’s long-term debt as of December 31, 2017 and 2016 approximates the carrying value of $582,325,000 and, $404,138,000 respectively. The Company uses significant other unobservable inputs to estimate fair value (Level 3 of the fair value hierarchy) of long-term debt based on the present value of future cash flows, interest rates, maturities and collateral requirements available for companies with similar credit ratings. For certain of the Company’s nonfinancial assets, including goodwill, intangible assets and property and equipment, the Company may be required to assess the fair values of these assets, on a recurring or nonrecurring basis, and record an impairment if the carrying value exceeds the fair value. In determining the fair value of these assets, the Company may use a combination of valuation methods, which include Level 3 inputs. For the periods presented, there were no impairment charges. See Notes 1—Nature of Business and Summary of Significant Accounting Policies and 5—Goodwill and Finite-Life Intangible Assets for additional information regarding the Company’s determination of fair value regarding goodwill and indefinite-lived intangible assets. In conjunction with the acquisitions discussed in Note 2—Acquisitions, the Company used a combination of valuation methods which include Level 3 inputs in determining the fair values of the assets and liabilities acquired as well as the fair value of the consideration transferred.

Major Vendors and Economic Depe

Major Vendors and Economic Dependence	12 Months Ended
	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Major Vendors and Economic Dependence	11. Major Vendors and Economic Dependence The Company has numerous technology partners whose communication products are purchased and resold. Although the Company purchases from a diverse vendor base, products manufactured by two of our vendors, Avaya Inc. (“Avaya”) and Cisco Systems, Inc., represented 21% and 39%, respectively, of the Company’s technology offerings revenue for the year ended December 31, 2017, 30% and 29%, respectively, for the year ended December 31, 2016, and 41% and 25%, respectively, for the year ended December 31, 2015. Avaya related revenue represented 23%, 27% and 33% of the Company’s total consolidated revenue for the years ended December 31, 2017, 2016 and 2015, respectively. Avaya filed for reorganization under Chapter 11 in January, 2017. Avaya successfully completed a balance sheet restructuring and emerged from bankruptcy proceedings in the fourth quarter of 2017. In January, 2018, Avaya successfully completed an initial public offering and their stock began trading publically. Management continues to evaluate the impact that Avaya’s reorganization has had on the Company’s results of operations and financial condition. The Company has one distributor that supplies a significant portion of its Avaya communication products. At December 31, 2017 and 2016, the Company owed $28,000,000 and $27,000,000, respectively, to this distributor.

Operating Leases

Operating Leases	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
Operating Leases	12. Operating Leases The Company leases office and warehouse space and vehicles under operating lease agreements that expire on various dates through 2026. Approximate future minimum annual rental commitments under these operating leases as of December 31, 2017 are as follows (in thousands): Years Ending December 31, Amount 2018 $ 8,176 2019 5,978 2020 4,661 2021 3,830 2022 3,175 2023 and thereafter 3,964 Total $ 29,784 Rent expense was $5,402,000, $4,648,000 and $3,360,000 for the years ended December 31, 2017, 2016 and 2015, respectively.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2017
Postemployment Benefits [Abstract]
Employee Benefit Plans	13. Employee Benefit Plans The Company sponsors defined contribution plans for substantially all employees. Annual Company contributions under the plans are discretionary. Company contribution expense during the years ended December 31, 2017, 2016 and 2015 was $4,009,000, $2,965,000 and $2,400,000, respectively.

Employment Contracts and Bonus

Employment Contracts and Bonus Plans	12 Months Ended
	Dec. 31, 2017
Compensation Related Costs [Abstract]
Employment Contracts and Bonus Plans	14. Employment Contracts and Bonus Plans The Company has entered into employment contracts with certain officers that require an annual salary plus a bonus amount based on meeting certain business plan and financial objectives. In addition, the agreements contain provisions for severance payments under certain termination conditions.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	15. Income Taxes On December 22, 2017, H.R. 1, originally known as the Tax Cuts and Jobs Act (“Tax Legislation”) was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a permanent reduction of the U.S. corporate income tax rate from 35% to 21% effective January 1, 2018. For the year ended December 31, 2017, the enactment of the Tax Legislation resulted in a one-time non-cash tax benefit of $9,812,000 related to the re-measurement of net U.S. deferred tax liabilities at the lower enacted corporate tax rate. The Company is not materially impacted by any other Tax Legislation changes for the year ended December 31, 2017. The provision for income taxes charged to operations consists of the following (in thousands): Year Ended December 31, 2017 2016 2015 Current Federal $ (10,689 ) $ 9,535 $ 5,170 State (611 ) 1,246 1,321 (11,300 ) 10,781 6,491 Deferred Federal (7,374 ) (2,445 ) (2,595 ) State (674 ) (1,620 ) (322 ) (8,048 ) (4,065 ) (2,917 ) $ (19,348 ) $ 6,716 $ 3,574 The following schedule reconciles the differences between the U.S. federal income taxes at the U.S. statutory rate and our income tax expense (in thousands): Year Ended December 31, 2017 2016 2015 Statutory federal income tax rate $ (9,579 ) 35.0% $ 5,273 35.0% $ 2,659 35.0% Increase (decrease) in income taxes resulting from: State income taxes, net of federal income tax effect (896 ) 3.3 857 5.7 567 7.4 Nondeductible expenses 786 (2.9 ) 858 5.7 280 3.7 Deferred rate change (31 ) 0.1 370 2.4 — — Acquisition accounting adjustment — — (351 ) (2.3 ) — — Federal tax reform deferred tax impact (9,812 ) 35.9 — — — — Other 184 (0.7 ) (291 ) (1.9 ) 68 0.9 Effective tax rate $ (19,348 ) 70.7% $ 6,716 44.6% $ 3,574 47.0% Deferred income tax assets and liabilities consist of the following components (in thousands): December 31, 2017 2016 Deferred Tax Assets: Trade accounts receivable $ 658 $ 619 Inventories 184 262 Other deferred tax assets 584 494 Accrued compensation 2,590 2,960 Deferred revenue 4,449 1,786 Debt financing costs — 382 Net operating loss carryforwards 2,014 1,885 Total deferred tax assets 10,479 8,388 Deferred Tax Liabilities: Prepaid expenses and deferred customer support contract costs 3,438 4,009 Other 68 132 Property and equipment 3,459 2,872 Goodwill and finite-life intangibles 21,570 39,216 Total deferred tax liabilities 28,535 46,229 Total net deferred tax liabilities $ (18,056 ) $ (37,841 ) Certain of the Company’s historical net operating losses are subject to Internal Revenue Code Section 382 limitations which have been considered in determining the amount of available net operating loss carryforwards. At December 31, 2017, the Company has federal net operating loss carryforwards of $4.3 million that begin to expire in 2031 if not utilized. The Company also has $19.3 million of various state operating loss carryforwards at December 31, 2017, that begin to expire in 2020 if not utilized. Uncertain Tax Positions The Company recognizes the tax effects of an uncertain tax position only if it is more likely than not to be sustained based solely upon its technical merits at the reporting date. The unrecognized tax benefit is the difference between the tax benefit recognized and the tax benefit claimed on the Company’s income tax return. The Company has reviewed its prior year returns and believes that all material tax positions in the current and prior years have been analyzed and properly accounted for and that the risk that additional material uncertain tax positions have not been identified is remote. A reconciliation of the beginning and ending amounts of the gross unrecognized income tax benefit is as follows (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 1,456 $ 1,331 $ 1,331 Additions for tax position of current year 353 364 333 Additions for tax position of prior years — 125 — Redutions due to statute of limitations lapse (364 ) (364 ) (333 ) Settlements — — — Balance at end of period $ 1,445 $ 1,456 $ 1,331 The Company’s federal income tax returns for the periods ended December 31, 2014 and 2015 are currently under examination by the IRS and it is reasonably possible that the amount of unrecognized tax benefits will change in the next 12 months as a result. If we were to prevail on all unrecognized tax benefits recorded, $1,392,000 of the $1,445,000 reserve would benefit the effective tax rate. In addition, the reversal of accrued penalties and interest would also benefit the effective tax rate. Interest and penalties associated with unrecognized tax benefits are recorded within income tax expense. During the years ended December 31, 2017, 2016 and 2015, we recorded a net expense from accrued penalties and interest of $6,000, $111,000 and $0, respectively. As of December 31, 2017 and 2016, total accrued interest and penalties were $117,000 and $111,000, respectively. The Company’s federal income tax returns remain open to examination for 2014 through 2016 and certain of the Company’s state income tax returns remain open to examination for 2013 through 2016.

Segment Reporting

Segment Reporting	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Reporting	16. Segment Reporting Management has concluded that our chief operating decision maker (CODM) consists of both its chief executive officer and chief financial officer. The Company’s CODMs collectively review the entire organization’s consolidated results as a whole on a monthly basis to evaluate performance and make resource allocation decisions. Management views the Company’s operations and manages its business as one operating segment. Geographic Areas Sales to customers outside of the United States are not material for any of the periods presented. Additionally, the Company does not have long-lived assets outside of the United States. Revenue by Technology Market The following table presents total technology offerings revenue and services revenue by technology market, based on the Company’s internal classification of revenue (in thousands): Year Ended 2017 2016 2015 Technology Offerings Collaboration $ 227,981 $ 232,357 $ 207,202 Enterprise Networking, Data Center, Cloud and Security 225,125 207,447 90,279 $ 453,106 $ 439,804 $ 297,481 Services Collaboration $ 381,715 $ 319,208 $ 288,167 Enterprise Networking, Data Center, Cloud and Security 84,105 56,597 15,816 $ 465,820 $ 375,805 $ 303,983 Total Collaboration $ 609,696 $ 551,565 $ 495,369 Enterprise Networking, Data Center, Cloud and Security 309,230 264,044 106,095 Total $ 918,926 $ 815,609 $ 601,464

Related-Party Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related-Party Transactions	17. Related-Party Transactions The Company has a management agreement with Clearlake, a stockholder of the Company. Under the terms of the agreement, the Company is required to pay Clearlake a quarterly management fee not to exceed $375,000. For years ended December 31, 2017, 2016 and 2015, the expense under the agreement was $1,500,000, of which $375,000 was included in accrued expenses at December 31, 2017 and 2016, respectively. The Company paid consulting fees of $140,000 and $100,000 to Clearlake in the year ended December 31, 2017 and 2016, respectively, related to debt refinancing. On August 17, 2017, the Company granted 530,772 options to purchase the Company’s Class B Common Stock to a newly appointed board member. On September 25, 2017, the board member early exercised the options for a total exercise price of $1,805,000 with payment in the form of a Recourse Promissory Note. The note bears interest at 2.6% and is due and payable in full upon the earliest of (i) September 25, 2027, (ii) the date on which the first registration statement is filed with the United States Securities and Exchange Commission under the Securities Act of 1933, as amended, offering securities of the Company to the public, (iii) the dissolution or liquidation of the Company, and (iv) within 10 days after the date on which the individual is no longer a director of the Company.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	18. Quarterly Financial Data (Unaudited) Quarters Ended Dec. 31, Sept. 30, June 30, Mar. 31, (In thousands, except per share amounts) 2017 2017 2017 2017 Total revenue $ 299,226 $ 245,412 $ 191,322 $ 182,966 Gross profit 92,482 70,923 57,787 53,293 Operating income 2,627 6,834 12,132 3,077 Net income (loss) 5,164 1,303 (11,367 ) (3,121 ) Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ 0.06 $ 0.01 $ (0.13 ) $ (0.03 ) Cash dividends per share of Class A common stock $ — $ — $ — $ — Quarters Ended Dec. 31, Sept. 30, June 30, Mar. 31, (In thousands, except per share amounts) 2016 2016 2016 2016 Total revenue $ 210,528 $ 213,381 $ 209,875 $ 181,825 Gross profit 68,969 64,277 61,171 54,827 Operating income 16,140 14,986 10,835 4,541 Net income (loss) 2,163 4,698 2,501 (1,013 ) Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ 0.03 $ 0.05 $ 0.03 $ (0.01 ) Cash dividends per share of Class A common stock $ 1.00 $ — $ — $ —

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	19. Subsequent Events In preparing the consolidated financial statements as of and for the year ended December 31, 2017, the Company evaluated subsequent events for recognition and measurement purposes through March 19, 2018, the date the independent auditors’ report was originally issued and the audited consolidated financial statements were available for issuance. After the original issuance of the consolidated financial statements and through April 23, 2018, the Company evaluated subsequent events and transactions that have occurred that may require disclosure in the accompanying consolidated financial statements through the issue date of these consolidated financial statements. Senior Secured Revolving Loan Facility On February 13, 2018, the Company amended the Revolver Agreement to increase the aggregate revolving commitments from $150,000,000 to $200,000,000 and incurred financing transaction costs of $175,000. Concurrent with the amendment to the Revolver Agreement, the aggregate principal amount of floor plan advances credit limit increased from $150,000,000 to $200,000,000. Consummation of the Merger with Forum On February 22, 2018, the Company consummated its Merger with Forum (as disclosed in Note 1—Nature of Business and Summary of Significant Accounting Policies/Merger) whereby all parties agreed to merge the companies and operate as a combined company that is named ConvergeOne Holdings, Inc. The Merger is being accounted for as a reverse recapitalization. The consideration issued to the Company’s security holders was comprised of shares and cash, and the Company will account for the transaction prospectively in the period in which it was consummated. The Company’s net income (loss) per share amounts will be retroactively restated to reflect the effect of the Merger when future periods are reported beginning with the first quarter of 2018. The retroactive restatement of net income (loss) per share has not been reflected in the accompanying historical audited financial statements. There were a number of transactions contemplated by the Merger which took place shortly before, or on the closing date, and subsequently thereafter including the redemption of Forum shareholders, payment to the Company shareholders and issuance of new shares, infusion of equity capital from a private placement, and other matters. These transactions will be reflected in the Company’s financial statements for the first quarter of 2018. Upon the Closing, Forum’s rights and units ceased trading, and ConvergeOne’s common stock and warrants began trading on the Nasdaq Capital Market (“Nasdaq”) under the symbols “CVON” and “CVONW,” respectively. Additionally, the Company’s Class A common stock and Class B common stock ceased to exist. As of the closing date, entities affiliated with Clearlake beneficially owned approximately 54.7% of the combined company’s outstanding shares of common stock and the former Forum securityholders collectively beneficially owned approximately 8.8% of ConvergeOne’s outstanding shares. As a result, ConvergeOne is a “controlled company” within the meaning of the Nasdaq listing rules. Arrow Systems Integration, Inc. On March 1, 2018, the Company, through its subsidiary ConvergeOne, acquired Arrow Systems Integration, Inc. (“ASI”) for cash consideration of $30,655,000. The acquisition will be accounted for as a business combination with the purchase price allocated to the assets acquired and liabilities assumed based on the estimated fair values at the acquisition date as determined by the Company’s management, using information currently available and current assumptions as to projections of future events and operating performance, and consideration of market conditions. Any premium paid over the fair value of the net tangible and identified intangible assets acquired will result in goodwill. Due to the timing of the acquisition, the fair value of asset acquired and liabilities assumed has not yet been determined and therefore the acquisition accounting is not complete. The Company will include the preliminary purchase price allocation in the first quarter of 2018 and finalize the purchase price allocation as soon as practicable within the measurement period, but not later than one year following the acquisition date. The results of the acquisition will be included in the consolidated statements of income from the closing date forward. Senior Secured Term Loan (unaudited) On April 10, 2018, certain of ConvergeOne Holdings, Inc.’s subsidiaries, C1 Intermediate Corp. and C1 Holdings Corp. (f/k/a ConvergeOne Holdings Corp.) entered into a Term Loan Agreement (the “ Term Loan Agreement Term Loans The principal installments in the amount of $1,675,000 are due on the last business day of each quarter commencing September 30, 2018, with the remaining outstanding principal amount to be paid on its maturity date of April 10, 2025. The Term Loan Agreement contains a number of significant restrictive covenants. Such restrictive covenants, among other things, restrict, subject to certain exceptions, our and our restricted subsidiaries’ ability to incur additional indebtedness and make guarantees; create liens on assets; pay dividends and distributions or repurchase their capital stock; make investments, loans and advances, including acquisitions; engage in mergers, consolidations, dissolutions or similar transactions; sell or otherwise dispose of assets, including sale and leaseback transactions; engage in certain transactions with affiliates; enter into certain restrictive agreements; make changes in the nature of their business, fiscal year and organizational documents; make prepayments or amend the terms of certain junior debt; and enter into certain hedging arrangements. The Term Loan Agreement also contains certain customary representations and warranties, affirmative covenants and events of default, including the occurrence of a Change of Control, as defined in the Term Loan Agreement. If an event of default occurs, the lenders under the Term Loan Agreement will be entitled to take various actions, including the acceleration of amounts due under the Term Loan Agreement and actions permitted to be taken by a secured creditor. The Term Loan Agreement requires the Company to prepay outstanding Term Loans, subject to certain exceptions, in amounts equal to the following: commencing with the year ending December 31, 2018, 50% of “excess cash flow” (which percentage steps down to 25% and 0% when we obtain certain consolidated total net leverage ratios), provided that any mandatory “excess cash flow” prepayment shall be at least $10 million; 100% of the net cash proceeds of all non-ordinary course asset sales or other dispositions of property (which percentage steps down to 50% when we obtain a certain consolidated total net leverage ratio); and 100% of the net cash proceeds of any incurrence of debt, other than debt permitted to be incurred or issued under the Term Loan Agreement. The Company is permitted to voluntarily repay outstanding Term Loans at any time without premium or penalty unless such payment is made prior to October 10, 2018 in connection with a repricing transaction as described in the Term Loan Agreement, in which case the Company is required to pay a premium of 1% on the Term Loans so prepaid. The Term Loans bear interest at 2.75% above the alternate base rate or 3.75% above the Eurodollar rate, as described in the Term Loan Agreement. Interest on the Eurodollar rate Term Loans is payable on the last day of the Interest Period, as defined in the Term Loan Agreement, and interest on alternate base rate Term Loans is payable on the last day of each quarter. Senior Secured Revolving Loan Facility (unaudited) On April 10, 2018, Intermediate, C1 Holdings Corp., certain of the Company’s subsidiaries and Wells Fargo entered into a Third Amendment to Revolving Loan Credit Agreement and revised certain definitions and restrictive covenants in such agreement to be consistent with the terms of the new Term Loan Agreement described above. As of April 10, 2018, after the repayment of $90,000,000 as discussed above, no amounts were owed under the Revolving Loan Credit Agreement, the aggregate revolving commitment under this agreement was $200,000,000 and the aggregate principal amount of floor plan advances credit limit was $200,000,000. This agreement matures on June 20, 2022. Tender Offer to Purchase Warrants for Cash (unaudited) As of the closing of the Business Combination on February 22, 2018, there were a total of 8,936,250 warrants outstanding consisting of 8,624,999 Public Warrants issued and sold as part of the Units in Forum’s initial public offering (the “Forum IPO”) and 311,250 Placement Warrants issued and sold to Forum’s sponsor in a private placement consummated simultaneously with the Forum IPO. Each warrant entitles the holder to purchase one share of common stock at a price of $11.50 per share, beginning on April 12, 2018. Post-Business Combination, these warrants pertain to the purchase of ConvergeOne common stock and the terms and conditions remain the same. On February 26, 2018, the Company initiated a public Offer to Purchase for cash up to 8,936,250 warrants at a price of $0.95 per warrant, net to the seller without interest and subject to certain conditions (the “Tender Offer”). On March 23, 2018, the Company increased the offer price to $1.20 per warrant and extended the Tender Offer period to April 13, 2018. On April 13, 2018, the Tender Offer period was extended to April 20, 2018. The Tender Offer expired at 5:00 P.M., New York City time, on April 20, 2018, and a total of 7,581,439 warrants were validly tendered and not withdrawn pursuant to the Tender Offer as of such date. In accordance with the terms of the Tender Offer, the Company purchased all 7,581,439 validly tendered and not withdrawn warrants at a price equal to $1.20 per warrant for an aggregate purchase price of approximately $9,098,000. Immediately following the closing of the Tender Offer there were 1,354,810 warrants outstanding consisting of 1,091,060 Public Warrants and 263,750 Placement Warrants.

Nature of Business and Summar26

Nature of Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and include the accounts of the parent company, C1 Investment Corp., and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in the consolidation.
Use of Estimates	Use of Estimates The preparation of the Company’s consolidated financial statements in conformity with U.S. 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 the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates are used when accounting for items and matters including, but not limited to, revenue recognition, the fair value of assets acquired and liabilities assumed in business combinations, evaluation of goodwill and long-lived assets for impairment, stock-based compensation, partner funding, income tax measurement, and provisions for doubtful accounts.
Revenue Recognition	Revenue Recognition Products, installation and maintenance services are typically sold as a bundled arrangement containing multiple deliverables of new and/or refurbished hardware, software and professional services associated with installing, maintaining and managing the business communications systems. Revenue from multiple-element arrangements is allocated to the various elements based on the relative selling price of the elements, and each element is considered a separate accounting unit, with recognition of revenue based on the criteria met for the individual element of the multiple-element arrangement. When available, the Company uses vendor-specific objective evidence, or VSOE, to determine the selling price of a unit of accounting. If VSOE does not exist, the Company uses third-party evidence of the selling price for similar products and services. For units of accounting in which there is no VSOE or third-party evidence of selling price, the best estimate of selling price is used. The Company determines best estimate of selling price using a cost plus margin approach.
Technology Offerings Revenue	Technology Offerings Revenue Revenue for hardware and software: The Company sells communication products, which consist of hardware and essential software. The software and hardware are necessary to deliver the essential functionality of the communication products. Revenue from the sale of hardware and software products is generally recognized on a gross basis with the sales price to the customer recorded as revenue and the acquisition cost of the product recorded as cost of revenue, net of certain partner funding. Revenue is recognized when the title and risk of loss are passed to the customer, there is persuasive evidence of an arrangement for sale, the sales price is fixed and determinable, and collectability is reasonably assured. Hardware and software items can be delivered to customers in a variety of ways including physical products shipped from our warehouses, via drop-shipment by the vendor or distributor or via electronic delivery for software licenses. The Company maintains an estimate for sales returns and credit losses based on historical experience. The Company’s vendor partners provide limited warranties to our customers on equipment sold. Sales Taxes Shipping and Freight
Services Revenue	Services Revenue Revenue for Professional Services Revenue for Managed, Cloud and Maintenance Services The Company considers the principal versus agent accounting guidance to determine if the Company is the primary obligor in the arrangement and if revenue should be recognized gross or net of the associated costs. Applying the principal versus agent accounting guidance is a matter of judgment based on consideration of several factors and indicators. Revenue from the sale of third-party retail maintenance contracts is recognized net of the related cost of revenue. In third-party retail maintenance contracts, all services are provided by third-party providers and, as a result, the Company concluded that it is acting as an agent and is not considered the primary obligor. As the Company is under no obligation to perform additional services, revenue is recognized net at the time of sale. Revenue from the sale of third-party wholesale maintenance contracts is recognized on a gross basis at the time of sale with the selling price to the customer recorded as revenue and the acquisition cost recorded as cost of revenue. Based upon the evaluation of indicators for net and gross reporting, the Company has concluded that it is acting as a principal in these contracts.
Cash	Cash The Company maintains its cash in bank deposit and money market accounts that, at times, may exceed federally insured limits. The Company has not experienced any losses in such accounts. The Company’s cash management program utilizes zero balance accounts and overnight money market investments. The Company does not have any compensating balance requirements.
Trade Accounts Receivable	Trade Accounts Receivable Accounts receivable are carried at the original invoice amount less an estimate made for doubtful receivables. Management determines the allowances by regularly evaluating individual customer receivables and considering a customer’s financial condition and credit history. Accounts receivable are written off when deemed uncollectible. Recoveries of accounts receivable previously written off are recorded when received.
Inventories	Inventories Inventories, consisting primarily of communication products, are valued at the lower of cost, determined by the specific-identification method and average cost, or market. The Company evaluates inventories for excess, aging, obsolescence or other factors that affect net realizable value. Write-downs have historically not been material for any of the periods presented.
Property and Equipment	Property and Equipment Property and equipment are stated at cost. Depreciation is computed using straight-line and accelerated methods over estimated useful lives of five to ten years for furniture, fixtures and equipment, and three years for software. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the lease term. Depreciation of certain equipment and software directly utilized in support of cloud and managed services contracts is included in cost of service revenue within the Company’s consolidated statements of income. All other depreciation and amortization are recorded in depreciation and amortization within operating expenses in the Company’s consolidated statements of income.
Finite-life Intangible Assets	Finite-life Intangible Assets Finite-life intangible assets include customer relationships, trademarks, noncompetition agreements, and internally developed software. These intangible assets are amortized over the estimated period during which the asset is expected to contribute directly or indirectly to future cash flows.
Impairment of Long-lived Assets	Impairment of Long-lived Assets The Company reviews its long-lived assets for impairment whenever events or circumstances exist that indicate the carrying amount of an asset or asset group may not be recoverable. The recoverability of long-lived assets is measured by a comparison of the carrying amount of the asset or asset group to the future undiscounted cash flows expected to be generated by that asset group. If the asset or asset group is considered to be impaired, an impairment loss would be recorded to adjust the carrying amounts to the estimated fair value. Management has determined that no impairment of long-lived assets exists, and accordingly, no adjustments to the carrying amounts of the Company’s long-lived assets have been made for the periods presented.
Goodwill	Goodwill The Company records goodwill when the purchase price of a business acquisition exceeds the fair value of net tangible and identifiable intangible assets acquired in a business acquisition. Goodwill is assessed for impairment annually, or more frequently when events or changes in circumstances indicate that the fair value of a reporting unit has more likely than not declined below its carrying value. The Company has determined that it operates its business in one operating segment and one reporting unit and has selected October 1 as the date to perform its annual impairment test. The Company performs either a qualitative or quantitative assessment to determine if the fair value of its reporting unit exceeds its carrying value. The qualitative goodwill impairment assessment requires evaluating factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. As part of our goodwill qualitative assessment process, we evaluate various factors that are specific to the reporting unit that include, but are not limited to, macroeconomic conditions, industry and market considerations and the overall financial performance of the Company. When performing the quantitative assessment to calculate the fair value of a reporting unit, we consider both comparative market multiples as well as estimated discounted cash flows for the reporting unit. The significant estimates and assumptions include, but are not limited to, revenue growth rates, operating margins, and future economic and market conditions. The discount rates are based upon the reporting unit’s weighted average cost of capital. If an impairment is identified, the next step is to measure the impairment loss by comparing the implied fair value of goodwill with the carrying value of the goodwill for the reporting unit. The Company performed its annual test in 2017 using a quantitative assessment and determined that it was not more likely than not that the fair value of its reporting unit was less than its carrying amount. The Company believes the quantitative factors considered in the impairment analysis are reasonable, however, significant changes in any one of our assumptions could produce a different result and result in impairment charges that could be material to its consolidated financial statements.
Debt Issuance Costs	Debt Issuance Costs Debt issuance costs arising from the Company’s borrowings and credit agreements are amortized using the effective interest rate method over the term of the related debt financing. See Note 6—Debt. Debt issuance costs are presented on a net basis along with the associated debt obligation in the consolidated balance sheets.
Deferred Offering Costs	Deferred Offering Costs The Company capitalizes certain legal, accounting and other third-party fees that are directly associated with in-process paid-in
Income Taxes	Income Taxes Income taxes are provided using an asset and liability method. Deferred income tax assets and liabilities are computed for differences between the financial statement and tax basis of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax assets and liabilities are adjusted for the effects of changes in tax laws and rates on the date of enactment. Management’s estimate of the income tax rates utilized in the calculation of the deferred income tax balances is based on historical taxable income of the Company, expected future taxable income and corresponding rates. The Company’s operations involve dealing with uncertainties and judgments in the application of complex tax regulations in a multitude of jurisdictions. The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return based on its estimate of whether, and the extent to which, additional taxes will be due. The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense. See Note 15—Income Taxes for further discussion on the enactment of the legislation commonly referred to as the Tax Cuts and Jobs Act and the impact to the Company’s provision for income taxes.
Transaction Costs	Transaction Costs The Company presents transaction costs as a separate line item within operating expenses based on it being a material cost that varies from period to period. Transaction costs include acquisition-related expenses, including integration costs, employee retention bonuses, severance charges, advisory and due diligence fees, and transaction-related legal and accounting due diligence costs. Transaction costs for the year ended December 31, 2017 include the write-off
Advertising Costs	Advertising Costs The Company expenses advertising costs as incurred. During the years ended December 31, 2017, 2016 and 2015, advertising costs were $1,935,000, $1,903,000 and $1,312,000, respectively. These amounts were offset by partner funding earned pursuant to shared marketing expense programs recorded as a reduction of selling and administrative expenses.
Product Warranty	Product Warranty The Company provides limited warranties for replacement of defective products for customers who purchase certain types of maintenance support. The Company has not incurred any significant costs associated with these warranties.
Contingencies	Contingencies From time to time, the Company may be involved in legal matters such as contractual disputes, employment matters, personal injury or property damage claims. While the outcome of such litigation is never certain, management believes the outcomes will not have a material adverse effect on the consolidated financial statements.
Stock-based Compensation	Stock-based Compensation The Company measures and recognizes stock-based compensation expense for all stock-based awards made to employees and directors based on the fair value of the awards as of the date they were each granted and the corresponding expense is recognized over the requisite service period of the awards, both for stock options and restricted stock grants. The Company measures and recognizes stock-based compensation expense for all stock-based awards to non-employees re-measured The Company uses the Black-Scholes option pricing model to determine the fair value of stock-based awards. The model utilizes the value of the Company’s common stock as well as assumptions regarding the award’s expected life, risk-free interest rate, expected volatility of the underlying stock, and expected dividends. The specific assumptions the Company uses include the following: Fair value of the Company’s common stock Expected term mid-point Risk-free interest rate Expected volatility Dividends The Company uses judgment in evaluating the factors used in the Black-Scholes pricing model. As a result, if factors change, stock-based compensation expense could be significantly different in the future. Stock-based compensation expense is classified as sales and marketing expense or general and administrative expense consistent with other compensation expense associated with the award recipient. The Company has not capitalized stock-based employee compensation cost or recognized any significant tax benefits related to these costs.
Partner Funding	Partner Funding The Company receives payments and credits from vendors for various programs, including rebates, volume incentive programs and shared marketing expense programs. Each program varies in length and has varying conditions or achievement targets that determine the amount of consideration the Company is eligible to receive. The Company estimates and recognizes the amount of vendor consideration earned when it is probable and reasonably estimable using the information available or historical data. The Company recognizes vendor consideration as a reduction of either cost of revenue for rebates and volume incentives or operating expenses for shared marketing expenses or marketing development fund programs based on the nature of the consideration earned.
Business Combinations	Merger On November 30, 2017, the Company signed an Agreement and Plan of Merger (“Merger”) with Forum Merger Corporation (“Forum”), whereby a subsidiary of Forum and the Company shall consummate a merger, pursuant to which the subsidiary shall be merged with and into the Company, following which the separate corporate existence of the subsidiary shall cease and the Company shall continue as the surviving corporation (the “Business Combination”). On February 22, 2018, the transactions contemplated by the Merger were consummated. In connection with the Merger, the name of the surviving corporation was changed to ConvergeOne Holdings, Inc. The Business Combination will be accounted for as a reverse merger in accordance with U.S. GAAP. Under this method of accounting, Forum will be treated as the “acquired” company for financial reporting purposes. This determination was primarily based on the Company Securityholders expecting to have a majority of the voting power of the combined company, the Company comprising the ongoing operations of the combined entity, the Company comprising a majority of the governing body of the combined company, and the Company’s senior management comprising the senior management of the combined company. Accordingly, for accounting purposes, the Business Combination will be treated as the equivalent of the Company issuing stock for the net assets of Forum, accompanied by a recapitalization. The net assets of Forum will be stated at historical cost, with no goodwill or other intangible assets recorded. Operations prior to the Business Combination will be those of the Company. Business Combinations The Company accounts for business combinations and acquisitions using the acquisition method. The acquisition method requires that the total purchase price of the acquired entity be allocated to the assets acquired and liabilities assumed based on their fair values at the acquisition date. The assets acquired include the analysis and recognition of intangible assets such as customer relationships, trade names, developed technology and contractual rights and the liabilities assumed include contractual commitments and contingencies. Any premium paid over the fair value of the net assets and liabilities acquired is recorded as goodwill in connection with a business combination. The results of operations for an acquired entity are included in the consolidated financial statements from the date of acquisition.
Fair Value Measurements	Fair Value Measurements Fair value is defined under U.S. GAAP as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. U.S. GAAP also provides a fair value hierarchy for valuation inputs to prioritize the inputs into three levels based on the extent to which inputs used in measuring fair value are observable in the market. Each fair value measurement is reported in one of the three levels, which is determined by the lowest level input that is significant to the fair value measurement in its entirety. These levels are: Level 1: Inputs are quoted prices in active markets for identical assets or liabilities. Level 2: Inputs are quoted prices in active markets for similar assets or liabilities, or quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable or can be corroborated by observable market data for the asset or liability. Level 3: Inputs are unobservable for the asset or liability and are supported by little or no market activity. These fair values are determined using pricing models for which the assumptions utilize management’s estimates or market participant assumptions. For those financial instruments with no quoted market prices available, fair value is estimated using present value calculations or other valuation methods, as well as management’s best judgment with respect to current economic conditions, including discount rates and estimates of future cash flows.
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The Company did not have any components of other comprehensive income (loss) for any of the periods presented.
Net Income (Loss) Per Share	Net Income (Loss) Per Share Basic net income (loss) per share is computed using the two-class two-class in-the-money
Reportable Segments	Reportable Segments Segment information is required to be presented in accordance with a “management approach,” which is the approach used by a Company’s chief operating decision-maker when reviewing operating segment information to make decisions, allocate resources and assess performance. An operating segment is defined as a component of the Company (1) that engages in business activities from which it may earn revenue and incur expense, (2) whose operating results are regularly reviewed by the Company’s chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (3) for which discrete financial information is available. The Company has determined that it operates its business in one operating segment—see Note 16—Segment Reporting.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments-Equity Method and Joint Ventures (Topic 323): Amendments to SEC Paragraphs Pursuant to Staff Announcements at the September 22, 2016 and November 17, 2016 EITF Meetings 2014-09 2016-02 2014-09 2016-02, On January 1, 2017, the Company adopted ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory 2015-11 On January 1, 2017, the Company adopted ASU 2016-09, Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 2016-09 In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other: Simplifying the Test for Goodwill Impairment 2017-04 2017-04 Recently Issued Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606) 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date 2014-09 The FASB has issued the following additional ASUs to amend the guidance in ASU 2014-09, 2014-09: (1) In March 2016, the FASB issued ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net) (2) In April 2016, the FASB issued ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing (3) In May 2016, the FASB issued ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-scope Improvements and Practical Expedients (4) In December 2016, the FASB issued ASU 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers The Company does not intend to early adopt the new revenue recognition guidance and therefore all of the ASUs noted above will be effective for us for the year ending December 31, 2019. The Company expects to begin evaluating the effect of the revenue recognition ASUs during the second quarter of 2018. The evaluation will include selecting a transition method for these revenue recognition ASUs and determining the effect that the updated standards will have on the historical and future consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) Topic 840, Leases 2016-02 In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Receipts and Cash Payments In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business In May 2017, the FASB issued ASU No. 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09

Business Acquisitions (Tables)

Business Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
fair Value of Assets Acquired and Liabilities Assumed	The following summarizes the fair value of the assets acquired and liabilities assumed (in thousands) for acquisitions completed in 2017: Annese SPS RGTS AOS Total Assets Acquired: Cash $ 92 $ 8,426 $ — $ 10,886 $ 19,404 Trade accounts receivable 12,321 34,543 1,685 22,321 70,870 Inventories 3,161 6,264 20 3,057 12,502 Prepaid expenses 2,492 1,823 1,501 645 6,461 Deferred customer support contract costs — 14,366 — — 14,366 Deferred income taxes 1,326 10,448 — — 11,774 Property and equipment 960 15,146 4,394 1,417 21,917 Goodwill 9,906 18,834 5,471 40,460 74,671 Customer relationships 7,418 25,985 8,131 19,300 60,834 Trademarks 514 804 — 1,350 2,668 Noncompetition agreements — — 465 1,500 1,965 Total assets acquired 38,190 136,639 21,667 100,936 297,432 Liabilities Assumed: Accounts payable and accrued expenses (11,135 ) (51,376 ) (805 ) (33,210 ) (96,526 ) Customer deposits (29 ) (7,547 ) — (1,867 ) (9,443 ) Deferred revenue (1,587 ) (26,591 ) — — (28,178 ) Total liabilities assumed (12,751 ) (85,514 ) (805 ) (35,077 ) (134,147 ) Net assets acquired $ 25,439 $ 51,125 $ 20,862 $ 65,859 $ 163,285 The following summarizes the estimated fair value of the assets acquired and liabilities assumed (in thousands) for acquisitions completed in 2015: Sigmanet Sunturn MSN Total Assets Acquired: Cash $ 6,537 $ 1,038 $ 1,035 $ 8,610 Trade accounts receivable 27,206 5,899 17,459 50,564 Inventories 1,055 — — 1,055 Prepaid expenses 167 144 191 502 Deferred income taxes 363 — — 363 Property and equipment 1,973 312 700 2,985 Goodwill 27,820 2,813 6,971 37,604 Customer relationships 10,336 4,482 11,493 26,311 Trademarks 1,842 199 757 2,798 Noncompetition agreements 164 86 351 601 Total assets acquired 77,463 14,973 38,957 131,393 Liabilities Assumed: Accounts payable and accrued expenses (28,462 ) (5,429 ) (17,818 ) (51,709 ) Customer deposits (1,072 ) (800 ) (2,322 ) (4,194 ) Deferred revenue (78 ) — — (78 ) Total liabilities assumed (29,612 ) (6,229 ) (20,140 ) (55,981 ) Net assets acquired $ 47,851 $ 8,744 $ 18,817 $ 75,412 .
Purchase Price and Fair Value Adjustments	Purchase price and fair value adjustments to preliminary amounts were made during the fourth quarter of 2017 as follows: Annese SPS RGTS Net assets acquired as at September 30, 2017 $ 30,033 $ 59,125 $ 20,852 Purchase price and fair value adjustments: Increase (decrease): Current assets (480 ) (4,710 ) (206 ) Property and equipment — (5,209 ) 31 Goodwill (7,803 ) (4,594 ) (3,715 ) Intangible assets 2,193 4,899 4,000 (Increase) decrease: Current liabilities 170 (8,834 ) (100 ) Deferred income taxes 1,326 10,448 — (4,594 ) (8,000 ) 10 Net assets acquired as at December 31, 2017 $ 25,439 $ 51,125 $ 20,862
Acquisitions	Following are the supplemental consolidated results of the Company on an unaudited pro forma basis, as if the 2017 acquisitions had been consummated on January 1, 2016 for the year ended December 31, 2016 and 2017 (in thousands): Year Ended 2017 2016 Revenue $ 1,307,148 $ 1,414,520 Net (loss) income $ (21,915 ) $ 3,960

Trade Accounts Receivable (Tabl

Trade Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Allowance for Doubtful Accounts	The following is a roll forward of our allowance for doubtful accounts (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 1,024 $ 383 $ 150 Amounts expensed 1,006 1,090 353 Deductions (1) (550 ) (449 ) (120 ) Balance at end of period $ 1,480 $ 1,024 $ 383 (1) Deductions include actual accounts written off, net of recoveries.

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Equipment and Accumulated Depreciation	Property and equipment and accumulated depreciation is as follows (in thousands): Estimated Useful Lives December 31, 2017 2016 Furniture, fixtures and equipment Five to 10 years $ 31,858 $ 10,413 Software 3 years 21,172 14,265 Leasehold improvements Lesser of life or 3,855 1,755 56,885 26,433 Less accumulated depreciation (20,226 ) (11,078 ) $ 36,659 $ 15,355

Goodwill and Finite-Life Inta30

Goodwill and Finite-Life Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill is as follows (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 258,570 $ 244,351 $ 220,966 Acquisitions 74,671 — 23,385 Measurement period adjustments — 14,219 — Other (1,785 ) — — Balance at end of period $ 331,456 $ 258,570 $ 244,351
Finite-Life Intangible Assets	Finite-life intangible assets consist of the following (in thousands): Useful Life Weighted-Average Remaining Life (Years) (1) December 31, 2017 2016 Customer relationships $ 208,451 $ 147,617 5-10 5.4 Trademarks 38,546 35,878 2-10 6.0 Noncompetition agreements 6,241 4,276 1-5 4.4 Internally developed software 541 541 10 6.8 253,779 188,312 Less accumulated amortization (80,137 ) (53,692 ) Finite-life intangibles, net $ 173,642 $ 134,620 (1) As of December 31, 2017
Estimated Amortization Expense	Based on the recorded intangible assets at December 31, 2017, estimated amortization expense is expected to be as follows (in thousands): Years Ending December 31, 2018 $ 34,747 2019 34,535 2020 31,190 2021 28,062 2022 23,869 2023 and thereafter 21,239 Total $ 173,642

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Long-term debt	Long-term debt consists of the following (in thousands): December 31, 2017 2016 Revolving line-of-credit $ 20,000 $ — Term loan facility 562,325 — First lien term loan — 324,138 Second lien term loan — 80,000 Total long-term debt 582,325 404,138 Less unamortized original issue discount (5,623 ) (2,761 ) Less unamortized deferred financing costs (4,626 ) (9,089 ) Total long-term debt, net of debt issuance costs 572,076 392,288 Less current maturities (5,652 ) (3,324 ) Long-term debt, net $ 566,424 $ 388,964
Debt Issuance Costs	Debt issuance costs are as follows (in thousands): Revolving Term Loan First Lien Second Lien Total Balance as of December 31, 2014 $ 321 $ — $ 6,873 $ 3,276 $ 10,470 Additions — 1,418 — 1,418 Amortization (72 ) (1,449 ) (507 ) (2,028 ) Balance as of December 31, 2015 249 — 6,842 2,769 9,860 Additions 2,393 — 2,567 719 5,679 Extinguishment — — (35 ) (1,242 ) (1,277 ) Amortization (253 ) — (1,675 ) (484 ) (2,412 ) Balance as of December 31, 2016 2,389 — 7,699 1,762 11,850 Additions 927 10,206 147 — 11,280 Extinguishment (1,933 ) — (6,775 ) (1,577 ) (10,285 ) Amortization (554 ) (786 ) (1,071 ) (185 ) (2,596 ) Balance as of December 31, 2017 $ 829 $ 9,420 $ — $ — $ 10,249
Future Principal Payments on Long-Term Debt	The approximate future principal payments on long-term debt at December 31, 2017, is as follows (in thousands): Years Ending December 31, Debt 2018 $ 5,652 2019 5,652 2020 5,652 2021 5,652 2022 5,652 2023 and thereafter 534,065 Total 562,325 Revolving line-of-credit 20,000 Less unamortized debt issuance costs (10,249 ) Total debt $ 572,076

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average Assumptions	The grant-date fair value of our option grants was calculated using the Black-Scholes option-pricing model with the following weighted-average assumptions: Year Ended 2017 2016 Expected life (in years) 8.8 8.6 Expected volatility 42.8 % 43.1 % Dividend yield 0.0 % 0.0 % Risk-free interest rate 2.1 % 2.1 %
Summary of Stock Option Activity	A summary of the stock option activity is presented below (in thousands, except per share amounts): Shares Weighted- Weighted- Grant-Date Aggregate (1) Weighted- Balance at January 1, 2015 1,864 $ 0.01 $ 0.15 $ — 9.9 Granted 1,057 0.01 0.15 Forfeited (210 ) 0.01 0.15 Exercised (1,961 ) 0.01 0.15 Balance at December 31, 2015 750 0.01 0.15 $ 1,208 8.8 Granted 773 1.62 0.82 Forfeited (50 ) 1.62 0.87 Balance at December 31, 2016 1,473 0.80 0.48 $ 3,829 8.5 Granted 616 3.40 1.63 Forfeited (30 ) 0.01 0.15 Exercised (531 ) 3.40 1.66 Balance at December 31, 2017 1,528 $ 0.96 $ 0.54 $ 7,319 7.6 Fully vested and expected to vest at December 31, 2017 1,479 $ 0.93 $ 0.52 $ 7,124 7.6 Exercisable at December 31, 2017 95 $ 1.62 $ 0.66 $ 169 8.1 (1) Aggregate intrinsic value represents the difference between the estimated fair value of the underlying common stock and the exercise price of outstanding, in-the-money
Activity of Unvested Options	The activity of the unvested options is presented below (in thousands, except per share amounts): Shares Weighted- Balance at January 1, 2015 1,864 $ 0.15 Granted 1,057 0.15 Vested — Forfeited (210 ) 0.15 Exercised (1,961 ) 0.15 Balance at December 31, 2015 750 0.15 Granted 773 0.82 Vested (15 ) 0.65 Forfeited (50 ) 0.87 Balance at December 31, 2016 1,458 0.47 Granted 616 1.63 Vested (80 ) 0.66 Exercised (531 ) 1.66 Forfeited (30 ) 0.15 Balance at December 31, 2017 1,433 $ 0.53
Activity of Class B Common Stock	The activity for Class B common stock is presented below (in thousands, except per share amounts): Shares Weighted- Unvested and outstanding at January 1, 2015 13,142 $ 0.15 Granted or issued 1,961 0.15 Vested — Repurchased (401 ) 0.15 Unvested and outstanding at December 31, 2015 14,702 Vested (2,835 ) 0.15 Unvested and outstanding at December 31, 2016 11,867 0.15 Granted 531 1.66 Vested (1,402 ) 0.15 Repurchased (402 ) 0.15 Unvested and outstanding at December 31, 2017 10,594 $ 0.23

Net Income (Loss) per Share (Ta

Net Income (Loss) per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Reconciliation Weighted-Average Number of Shares	The following is a reconciliation of the weighted-average number of shares used to compute basic and diluted net income (loss) per share (in thousands, except per share amounts): Year Ended December 31, 2017 2016 2015 Numerator : Net income (loss) attributable to Class A common stockholders $ (8,021 ) $ 8,349 $ 4,023 Denominator: Weighted-average Class A common shares—basic 89,778 89,862 89,866 Effect of dilutive securities: Stock options and non-vested — — — Weighted-average Class A common shares—diluted 89,778 89,862 89,866 Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ (0.09 ) $ 0.09 $ 0.04

Operating Leases (Tables)

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
future Minimum Annual Rental Commitments	Approximate future minimum annual rental commitments under these operating leases as of December 31, 2017 are as follows (in thousands): Years Ending December 31, Amount 2018 $ 8,176 2019 5,978 2020 4,661 2021 3,830 2022 3,175 2023 and thereafter 3,964 Total $ 29,784

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The provision for income taxes charged to operations consists of the following (in thousands): Year Ended December 31, 2017 2016 2015 Current Federal $ (10,689 ) $ 9,535 $ 5,170 State (611 ) 1,246 1,321 (11,300 ) 10,781 6,491 Deferred Federal (7,374 ) (2,445 ) (2,595 ) State (674 ) (1,620 ) (322 ) (8,048 ) (4,065 ) (2,917 ) $ (19,348 ) $ 6,716 $ 3,574
Schedule of Reconciliation of Effective Income Tax Rate	The following schedule reconciles the differences between the U.S. federal income taxes at the U.S. statutory rate and our income tax expense (in thousands): Year Ended December 31, 2017 2016 2015 Statutory federal income tax rate $ (9,579 ) 35.0% $ 5,273 35.0% $ 2,659 35.0% Increase (decrease) in income taxes resulting from: State income taxes, net of federal income tax effect (896 ) 3.3 857 5.7 567 7.4 Nondeductible expenses 786 (2.9 ) 858 5.7 280 3.7 Deferred rate change (31 ) 0.1 370 2.4 — — Acquisition accounting adjustment — — (351 ) (2.3 ) — — Federal tax reform deferred tax impact (9,812 ) 35.9 — — — — Other 184 (0.7 ) (291 ) (1.9 ) 68 0.9 Effective tax rate $ (19,348 ) 70.7% $ 6,716 44.6% $ 3,574 47.0%
Schedule of Deferred Income Tax Assets and Liabilities	Deferred income tax assets and liabilities consist of the following components (in thousands): December 31, 2017 2016 Deferred Tax Assets: Trade accounts receivable $ 658 $ 619 Inventories 184 262 Other deferred tax assets 584 494 Accrued compensation 2,590 2,960 Deferred revenue 4,449 1,786 Debt financing costs — 382 Net operating loss carryforwards 2,014 1,885 Total deferred tax assets 10,479 8,388 Deferred Tax Liabilities: Prepaid expenses and deferred customer support contract costs 3,438 4,009 Other 68 132 Property and equipment 3,459 2,872 Goodwill and finite-life intangibles 21,570 39,216 Total deferred tax liabilities 28,535 46,229 Total net deferred tax liabilities $ (18,056 ) $ (37,841 )
Schedule of Unrecognized Income Tax Benefits	A reconciliation of the beginning and ending amounts of the gross unrecognized income tax benefit is as follows (in thousands): December 31, 2017 2016 2015 Balance at beginning of period $ 1,456 $ 1,331 $ 1,331 Additions for tax position of current year 353 364 333 Additions for tax position of prior years — 125 — Redutions due to statute of limitations lapse (364 ) (364 ) (333 ) Settlements — — — Balance at end of period $ 1,445 $ 1,456 $ 1,331

Segment Reporting (Tables)

Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Revenue by Type of Internal Classification	The following table presents total technology offerings revenue and services revenue by technology market, based on the Company’s internal classification of revenue (in thousands): Year Ended 2017 2016 2015 Technology Offerings Collaboration $ 227,981 $ 232,357 $ 207,202 Enterprise Networking, Data Center, Cloud and Security 225,125 207,447 90,279 $ 453,106 $ 439,804 $ 297,481 Services Collaboration $ 381,715 $ 319,208 $ 288,167 Enterprise Networking, Data Center, Cloud and Security 84,105 56,597 15,816 $ 465,820 $ 375,805 $ 303,983 Total Collaboration $ 609,696 $ 551,565 $ 495,369 Enterprise Networking, Data Center, Cloud and Security 309,230 264,044 106,095 Total $ 918,926 $ 815,609 $ 601,464

Quarterly Financial Data (Una37

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) Quarters Ended Dec. 31, Sept. 30, June 30, Mar. 31, (In thousands, except per share amounts) 2017 2017 2017 2017 Total revenue $ 299,226 $ 245,412 $ 191,322 $ 182,966 Gross profit 92,482 70,923 57,787 53,293 Operating income 2,627 6,834 12,132 3,077 Net income (loss) 5,164 1,303 (11,367 ) (3,121 ) Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ 0.06 $ 0.01 $ (0.13 ) $ (0.03 ) Cash dividends per share of Class A common stock $ — $ — $ — $ — Quarters Ended Dec. 31, Sept. 30, June 30, Mar. 31, (In thousands, except per share amounts) 2016 2016 2016 2016 Total revenue $ 210,528 $ 213,381 $ 209,875 $ 181,825 Gross profit 68,969 64,277 61,171 54,827 Operating income 16,140 14,986 10,835 4,541 Net income (loss) 2,163 4,698 2,501 (1,013 ) Net income (loss) per share attributable to Class A common stockholders, basic and diluted $ 0.03 $ 0.05 $ 0.03 $ (0.01 ) Cash dividends per share of Class A common stock $ 1.00 $ — $ — $ —

Nature of Business and Summar38

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)SegmentReporting_unit	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Nature Of Operations And Significant Accounting Policies [Line Items]
Number of operating segment | Segment	1
Number of reporting unit | Reporting_unit	1
Deferred offering costs		$ 1,839
Advertising costs	$ 1,935	$ 1,903	$ 1,312
Software
Nature Of Operations And Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum | Furniture, fixtures and equipment
Nature Of Operations And Significant Accounting Policies [Line Items]
Estimated useful lives	5 years
Maximum | Furniture, fixtures and equipment
Nature Of Operations And Significant Accounting Policies [Line Items]
Estimated useful lives	10 years

Business Acquisitions - Additio

Business Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 18, 2017	Dec. 15, 2017	Sep. 15, 2017	Aug. 16, 2017	Jul. 14, 2017	Dec. 04, 2015	May 19, 2015	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jan. 31, 2018	Dec. 31, 2014
Fair value of the contingent consideration								$ 956	$ 956	$ 956	$ 956	$ 956	$ 956
Goodwill								331,456	331,456	331,456	331,456	331,456	$ 331,456	$ 258,570	$ 244,351		$ 220,966
Customer Relationships
Expected lives of the acquired amortize intangible assets													5 years
Trademarks
Expected lives of the acquired amortize intangible assets													2 years
Noncompetition Agreements | Minimum
Expected lives of the acquired amortize intangible assets													2 years
Noncompetition Agreements | Maximum
Expected lives of the acquired amortize intangible assets													3 years
Annese
Cash consideration					$ 24,483
Additional consideration					4,000
Transaction costs related to the acquisition													$ 778
Fair value of the contingent consideration					956			956	956	956	956	956	956
Goodwill					9,906
Increase/Decrease in purchase price								(1,550)	(1,550)	(1,550)	(1,550)	(1,550)	(1,550)
Revenue, since the acquisition												36,385
Net income, since the acquisition												1,648
Escrow account	$ 2,576				$ 2,776
Escrow deposit released amount	200
Fair value of accounts receivable	2,323
Increase in goodwill									(7,803)
SPS
Cash consideration				$ 51,125
Transaction costs related to the acquisition													581
Goodwill				18,834
Increase/Decrease in purchase price								(8,000)	(8,000)	(8,000)	(8,000)	(8,000)	(8,000)
Revenue, since the acquisition											91,576
Net income, since the acquisition											1,410
Escrow account				$ 8,000
Escrow deposit released amount	$ 8,000
Fair value of accounts receivable								3,148	3,148	3,148	$ 3,148	$ 3,148	3,148
Increase in goodwill									(4,594)
RGTS
Cash consideration			$ 20,862
Transaction costs related to the acquisition													612
Goodwill			5,471
Increase/Decrease in purchase price																$ 10
Revenue, since the acquisition										8,242
Net income, since the acquisition										$ 192
Escrow account			2,200
Escrow deposit released amount																$ 600
Fair value of accounts receivable			$ 565
Increase in goodwill									$ (3,715)
AOS
Cash consideration		$ 65,859
Transaction costs related to the acquisition													$ 459
Goodwill		40,460
Revenue, since the acquisition								12,802
Net income, since the acquisition								$ 1,275
Escrow account		1,945
Fair value of accounts receivable		$ 500
Sigmanet
Cash consideration						$ 47,851
Goodwill						$ 27,820
Increase in goodwill															13,634
Decrease in finite-life intangibles															(12,567)
Decrease in tangible assets															(1,345)
Increase in accounts payable and accrued expenses															787
Decrease in cost of revenue															(157)
Decrease in operating expenses															(60)
Increase in income before income taxes															217
Escrow account															2,925
Accounts receivable not expected to be collected															$ 2,202
Sunturn
Cash consideration							$ 8,744
Goodwill							2,813
Fair value of accounts receivable														95
Increase in goodwill														650
MSN
Cash consideration							18,817
Goodwill							$ 6,971
Fair value of accounts receivable														805
Increase in goodwill														172
Decrease in accounts payable and accrued expenses														$ 237

Fair Value of Assets acquired a

Fair Value of Assets acquired and Liabilities assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 15, 2017	Sep. 30, 2017	Sep. 15, 2017	Aug. 16, 2017	Jul. 14, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 04, 2015	May 19, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 331,456						$ 258,570	$ 244,351			$ 220,966
2017 Acquisitions
Business Acquisition [Line Items]
Cash	19,404
Trade accounts receivable	70,870
Inventories	12,502
Prepaid expenses	6,461
Deferred customer support contract costs	14,366
Deferred income taxes	11,774
Property and equipment	21,917
Goodwill	74,671
Total assets acquired	297,432
Accounts payable and accrued expenses	(96,526)
Customer deposits	(9,443)
Deferred revenue	(28,178)
Total liabilities assumed	(134,147)
Net assets acquired	163,285
2017 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets	60,834
2017 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets	2,668
2017 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets	1,965
2015 Acquisitions
Business Acquisition [Line Items]
Cash								8,610
Trade accounts receivable								50,564
Inventories								1,055
Prepaid expenses								502
Deferred income taxes								363
Property and equipment								2,985
Goodwill								37,604
Total assets acquired								131,393
Accounts payable and accrued expenses								(51,709)
Customer deposits								(4,194)
Deferred revenue								(78)
Total liabilities assumed								(55,981)
Net assets acquired								75,412
2015 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets								26,311
2015 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets								2,798
2015 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets								601
Annese
Business Acquisition [Line Items]
Goodwill						$ 9,906
Net assets acquired	25,439		$ 30,033
Annese | 2017 Acquisitions
Business Acquisition [Line Items]
Cash	92
Trade accounts receivable	12,321
Inventories	3,161
Prepaid expenses	2,492
Deferred income taxes	1,326
Property and equipment	960
Goodwill	9,906
Total assets acquired	38,190
Accounts payable and accrued expenses	(11,135)
Customer deposits	(29)
Deferred revenue	(1,587)
Total liabilities assumed	(12,751)
Net assets acquired	25,439
Annese | 2017 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets	7,418
Annese | 2017 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets	514
SPS
Business Acquisition [Line Items]
Goodwill					$ 18,834
Net assets acquired	51,125		59,125
SPS | 2017 Acquisitions
Business Acquisition [Line Items]
Cash	8,426
Trade accounts receivable	34,543
Inventories	6,264
Prepaid expenses	1,823
Deferred customer support contract costs	14,366
Deferred income taxes	10,448
Property and equipment	15,146
Goodwill	18,834
Total assets acquired	136,639
Accounts payable and accrued expenses	(51,376)
Customer deposits	(7,547)
Deferred revenue	(26,591)
Total liabilities assumed	(85,514)
Net assets acquired	51,125
SPS | 2017 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets	25,985
SPS | 2017 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets	804
RGTS
Business Acquisition [Line Items]
Goodwill				$ 5,471
Net assets acquired	20,862		$ 20,852
RGTS | 2017 Acquisitions
Business Acquisition [Line Items]
Trade accounts receivable	1,685
Inventories	20
Prepaid expenses	1,501
Property and equipment	4,394
Goodwill	5,471
Total assets acquired	21,667
Accounts payable and accrued expenses	(805)
Total liabilities assumed	(805)
Net assets acquired	20,862
RGTS | 2017 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets	8,131
RGTS | 2017 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets	465
AOS
Business Acquisition [Line Items]
Goodwill		$ 40,460
AOS | 2017 Acquisitions
Business Acquisition [Line Items]
Cash	10,886
Trade accounts receivable	22,321
Inventories	3,057
Prepaid expenses	645
Property and equipment	1,417
Goodwill	40,460
Total assets acquired	100,936
Accounts payable and accrued expenses	(33,210)
Customer deposits	(1,867)
Total liabilities assumed	(35,077)
Net assets acquired	65,859
AOS | 2017 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets	19,300
AOS | 2017 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets	1,350
AOS | 2017 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets	$ 1,500
Sigmanet
Business Acquisition [Line Items]
Goodwill									$ 27,820
Sigmanet | 2015 Acquisitions
Business Acquisition [Line Items]
Cash								6,537
Trade accounts receivable								27,206
Inventories								1,055
Prepaid expenses								167
Deferred income taxes								363
Property and equipment								1,973
Goodwill								27,820
Total assets acquired								77,463
Accounts payable and accrued expenses								(28,462)
Customer deposits								(1,072)
Deferred revenue								(78)
Total liabilities assumed								(29,612)
Net assets acquired								47,851
Sigmanet | 2015 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets								10,336
Sigmanet | 2015 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets								1,842
Sigmanet | 2015 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets								164
Sunturn
Business Acquisition [Line Items]
Goodwill										$ 2,813
Sunturn | 2015 Acquisitions
Business Acquisition [Line Items]
Cash								1,038
Trade accounts receivable								5,899
Prepaid expenses								144
Property and equipment								312
Goodwill								2,813
Total assets acquired								14,973
Accounts payable and accrued expenses								(5,429)
Customer deposits								(800)
Total liabilities assumed								(6,229)
Net assets acquired								8,744
Sunturn | 2015 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets								4,482
Sunturn | 2015 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets								199
Sunturn | 2015 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets								86
MSN
Business Acquisition [Line Items]
Goodwill										$ 6,971
MSN | 2015 Acquisitions
Business Acquisition [Line Items]
Cash								1,035
Trade accounts receivable								17,459
Prepaid expenses								191
Property and equipment								700
Goodwill								6,971
Total assets acquired								38,957
Accounts payable and accrued expenses								(17,818)
Customer deposits								(2,322)
Total liabilities assumed								(20,140)
Net assets acquired								18,817
MSN | 2015 Acquisitions | Customer Relationships
Business Acquisition [Line Items]
Intangible assets								11,493
MSN | 2015 Acquisitions | Trademarks
Business Acquisition [Line Items]
Intangible assets								757
MSN | 2015 Acquisitions | Noncompetition Agreements
Business Acquisition [Line Items]
Intangible assets								$ 351

Fair Value Adjustment (Detail)

Fair Value Adjustment (Detail) $ in Thousands	3 Months Ended
	Dec. 31, 2017USD ($)
Annese
Business Acquisition [Line Items]
Net assets acquired, beginning balance	$ 30,033
Purchase price and fair value adjustments:
Current assets	(480)
Goodwill	(7,803)
Intangible assets	2,193
Current liabilities	170
Deferred income taxes	1,326
Business Acquisition Purchase Price Fair Value Adjustments, Total	(4,594)
Net assets acquired, ending balance	25,439
SPS
Business Acquisition [Line Items]
Net assets acquired, beginning balance	59,125
Purchase price and fair value adjustments:
Current assets	(4,710)
Property and equipment	(5,209)
Goodwill	(4,594)
Intangible assets	4,899
Current liabilities	(8,834)
Deferred income taxes	10,448
Business Acquisition Purchase Price Fair Value Adjustments, Total	(8,000)
Net assets acquired, ending balance	51,125
RGTS
Business Acquisition [Line Items]
Net assets acquired, beginning balance	20,852
Purchase price and fair value adjustments:
Current assets	(206)
Property and equipment	31
Goodwill	(3,715)
Intangible assets	4,000
Current liabilities	(100)
Business Acquisition Purchase Price Fair Value Adjustments, Total	10
Net assets acquired, ending balance	$ 20,862

Unaudited Pro-forma Information

Unaudited Pro-forma Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Business Combinations [Abstract]
Revenue	$ 1,307,148	$ 1,414,520
Net (loss) income	$ (21,915)	$ 3,960

Trade Accounts Receivable (Deta

Trade Accounts Receivable (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period		$ 1,024	$ 383	$ 150
Amounts expensed		1,006	1,090	353
Deductions	[1]	(550)	(449)	(120)
Balance at end of period		$ 1,480	$ 1,024	$ 383
[1]	Deductions include actual accounts written off, net of recoveries.

Schedule of Property, Equipment

Schedule of Property, Equipment and Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 56,885	$ 26,433
Less accumulated depreciation	(20,226)	(11,078)
Property, Plant and Equipment, Net	36,659	15,355
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 31,858	10,413
Furniture, fixtures and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Furniture, fixtures and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Software Development
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Property, Plant and Equipment, Gross	$ 21,172	14,265
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	Lesser of life or lease term
Property, Plant and Equipment, Gross	$ 3,855	$ 1,755

Schedule of Changes in the Carr

Schedule of Changes in the Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Balance at beginning of period	$ 258,570	$ 244,351	$ 220,966
Acquisitions	74,671		23,385
Measurement period adjustments		14,219
Other	(1,785)
Balance at end of period	$ 331,456	$ 258,570	$ 244,351

Goodwill and Finite-Life Inta46

Goodwill and Finite-Life Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill increase associated with acquisition	$ 74,671		$ 23,385
Goodwill increase associated with measurement period adjustments		$ 14,219
Aggregate amortization Expense	$ 26,445	$ 22,456	$ 20,247

Finite Life Intangible Assets (

Finite Life Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Finite-lived intangible assets, gross	$ 253,779	$ 188,312
Less accumulated amortization	(80,137)	(53,692)
Finite-life intangibles, net	173,642	134,620
Customer Relationships
Finite-lived intangible assets, gross	$ 208,451	147,617
Weighted-Average remaining life, (years)	5 years 4 months 24 days
Customer Relationships | Minimum
Useful Life	5 years
Customer Relationships | Maximum
Useful Life	10 years
Trademarks
Finite-lived intangible assets, gross	$ 38,546	35,878
Weighted-Average remaining life, (years)	6 years
Trademarks | Minimum
Useful Life	2 years
Trademarks | Maximum
Useful Life	10 years
Noncompete Agreements
Finite-lived intangible assets, gross	$ 6,241	4,276
Weighted-Average remaining life, (years)	4 years 4 months 24 days
Noncompete Agreements | Minimum
Useful Life	1 year
Noncompete Agreements | Maximum
Useful Life	5 years
Internally developed software
Finite-lived intangible assets, gross	$ 541	$ 541
Useful Life	10 years
Weighted-Average remaining life, (years)	6 years 9 months 18 days

Schedule of Aggregate Amortizat

Schedule of Aggregate Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
2,018	$ 34,747
2,019	34,535
2,020	31,190
2,021	28,062
2,022	23,869
2023 and thereafter	21,239
Finite-life intangibles, net	$ 173,642	$ 134,620

Debt - Component of long-term d

Debt - Component of long-term debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total long-term debt	$ 582,325	$ 404,138
Less unamortized original issue discount	(5,623)	(2,761)
Less unamortized deferred financing costs	(4,626)	(9,089)
Total debt	572,076	392,288
Less current maturities	(5,652)	(3,324)
Long-term debt, net	566,424	388,964
Total long-term debt, net of debt issuance costs	572,076	392,288
Term Loan facility [Member]
Debt Instrument [Line Items]
Total long-term debt	562,325
First Lien Term Loan [Member]
Debt Instrument [Line Items]
Total long-term debt		324,138
Second Lien Term Loan [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 80,000
Senior secured revolving loan facility [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 20,000

Debt - June 2017 Credit Facilit

Debt - June 2017 Credit Facilities - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Oct. 31, 2017	Jul. 31, 2017	Dec. 31, 2017	Jun. 20, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Financing Cost Transactions			$ 4,626,000		$ 9,089,000
Original Issue Discount			$ 5,623,000		$ 2,761,000
Senior Secured Revolving Loan Facility [Member]
Debt Instrument [Line Items]
Borrowing Base				$ 150,000,000
Line of credit, maturity date			Jun. 20, 2022
Line of credit, issuance date			Jun. 20, 2017
Senior Secured Revolving Loan Facility [Member] | Minimum
Debt Instrument [Line Items]
Commitment Fee, percentage			0.25%
Senior Secured Revolving Loan Facility [Member] | Maximum
Debt Instrument [Line Items]
Commitment Fee, percentage			0.375%
Senior secured revolving loan facility [Member]
Debt Instrument [Line Items]
Borrowing Base			$ 150,000,000
Base Rate [Member] | Senior Secured Revolving Loan Facility [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread			0.25%
Base Rate [Member] | Senior Secured Revolving Loan Facility [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread			0.75%
Eurodollar [Member] | Senior Secured Revolving Loan Facility [Member] | Minimum
Debt Instrument [Line Items]
Interest rate spread			1.25%
Eurodollar [Member] | Senior Secured Revolving Loan Facility [Member] | Maximum
Debt Instrument [Line Items]
Interest rate spread			1.75%
Senior Secured Revolving Loan Facility [Member]
Debt Instrument [Line Items]
Financing Cost Transactions			$ 927,000
Borrowing Base			150,000,000
Letters of Credit Outstanding			0
Line of credit, remaining borrowing capacity			97,678,000
Senior Secured Revolving Loan Facility [Member] | Senior secured revolving loan facility [Member]
Debt Instrument [Line Items]
Line of credit			20,000,000
Senior Secured Revolving Loan Facility [Member] | Floorplan [Member]
Debt Instrument [Line Items]
Line of credit			$ 32,322,000
Senior Secured Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, principal amount				$ 430,000,000
Issuance date			Jun. 20, 2017
Principal Installments			$ 1,413,000
Maturity Date commencing			Sep. 30, 2017
Maturity Date ending			Jun. 20, 2024
Installment payment description			Last business day of each quarter
Premium or penalty in connection with a repricing transaction			1.00%
Debt, stated interest rate			6.45%
Financing Cost Transactions			$ 4,778,000
Original Issue Discount			4,300,000
Senior Secured Term Loan [Member] | Incremental Amendment Agreement [Member]
Debt Instrument [Line Items]
Financing Cost Transactions			2,208,000
Original Issue Discount			713,000
Proceeds from borrowing	$ 60,000,000	$ 75,000,000
Unamortized deferred cost			1,128,000
Senior Secured Term Loan [Member] | Incremental Amendment Agreement [Member] | Interest Expense [Member]
Debt Instrument [Line Items]
Direct issuance costs incurred within interest expense			$ 1,793,000
Senior Secured Term Loan [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread			3.75%
Senior Secured Term Loan [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread			4.75%

Debt - June 2014 Credit Facilit

Debt - June 2014 Credit Facilities - Additional Information (Detail) $ in Thousands	Jun. 20, 2017USD ($)	Oct. 31, 2016USD ($)	May 31, 2015USD ($)	Jun. 30, 2014USD ($)Loan	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Mar. 31, 2017USD ($)	Sep. 30, 2016USD ($)
Debt Instrument [Line Items]
Extinguishment of Debt, Amount					$ (13,638)	$ (2,747)
Amortization of issuance cost					4,626	9,089
Original Issue Discount					5,623	2,761
Senior secured revolving loan facility [Member]
Debt Instrument [Line Items]
Line of credit , maximum borrowing capacity					150,000
Incremental Amendment Agreement [Member] | June 2014 [Member]
Debt Instrument [Line Items]
Proceeds from borrowing					10,000
Proceeds from borrowing, net					$ 9,353
June 2014 [Member]
Debt Instrument [Line Items]
Number of Term Loans | Loan				2
Debt, principal amount				$ 270,000
Line of credit , maximum borrowing capacity						65,000	$ 25,000
Extinguishment of Debt, Amount	$ (3,353)					(1,470)
Unamortized debt issuance, expensed	7,897					$ 989
Line of credit facility, commitment fee percentage						0.50%	0.50%
Letter of credit outstanding amount						$ 0	$ 0
June 2014 [Member] | Senior secured revolving loan facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maturity date					Jun. 17, 2019
Line of credit , maximum borrowing capacity		$ 65,000		$ 25,000					$ 40,000
Line of credit facility, interest rate at the end of period						6.00%	6.00%
June 2014 [Member] | Senior secured revolving loan facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread					4.00%
June 2014 [Member] | Senior secured revolving loan facility [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread					5.00%
June 2014 [Member] | First Lien Term Loan [Member]
Debt Instrument [Line Items]
Debt, principal amount		831
Line of credit facility, maturity date					Jun. 17, 2020
Frequency of installment payment description					Quarterly
Proceeds from borrowing		$ 90,000	$ 50,000
Interest Rate on Term Loans		5.375%
Line of credit facility, interest rate at the end of period						6.375%	6.00%
June 2014 [Member] | First Lien Term Loan [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread		4.375%			4.00%
June 2014 [Member] | First Lien Term Loan [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread					5.00%
June 2014 [Member] | Second Lien Term Loan [Member]
Debt Instrument [Line Items]
Line of credit facility, maturity date					Jun. 17, 2021
Interest Rate on Term Loans		9.00%
Line of credit facility, interest rate at the end of period						10.00%	9.00%
June 2014 [Member] | Second Lien Term Loan [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate spread					7.00%
June 2014 [Member] | Second Lien Term Loan [Member] | Eurodollar [Member]
Debt Instrument [Line Items]
Interest rate spread		8.00%			8.00%
June 2014 [Member] | Incremental Amendment Agreement [Member]
Debt Instrument [Line Items]
Amortization of issuance cost					$ 703	$ 6,068
Original Issue Discount						1,350
Unamortized debt issuance cost					147	5,679
June 2014 [Member] | Incremental Amendment Agreement [Member] | Interest Expense [Member]
Debt Instrument [Line Items]
Amortization of issuance cost					$ 556	1,739
June 2014 [Member] | Incremental Amendment Agreement [Member] | First Lien Term Loan [Member]
Debt Instrument [Line Items]
Debt, principal amount								$ 50,000
June 2014 [Member] | Deferred Gain (Loss) on Early Extinguishment of Debt [Member]
Debt Instrument [Line Items]
Unamortized original issue discount, expensed	$ 2,388					$ 288

Debt - Floor Planning Facilitie

Debt - Floor Planning Facilities - Additional Information (Detail) - Senior secured revolving loan facility [Member] - USD ($) $ in Thousands	1 Months Ended
	Mar. 31, 2017	Feb. 29, 2016	Dec. 31, 2017	Jun. 20, 2017	Dec. 31, 2016	Apr. 30, 2016
Debt Instrument [Line Items]
Credit Facility			$ 150,000
GE Commercial Distribution Finance Corporation [Member]
Debt Instrument [Line Items]
Credit Facility		$ 10,000
GE Commercial Distribution Finance Corporation [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Interest rate spread		0.50%
GE Commercial Distribution Finance Corporation [Member] | Minimum | Prime Rate [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate		4.25%
Wells Fargo Capital Finance Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Credit Facility	$ 65,000			$ 150,000		$ 20,000
Wells Fargo Capital Finance Senior Secured Credit Facility [Member] | Accounts Payable
Debt Instrument [Line Items]
Line of Credit Facility, Outstanding Amount			$ 32,322		$ 9,677
Wells Fargo Capital Finance Senior Secured Credit Facility [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Interest rate spread	0.50%
Wells Fargo Capital Finance Senior Secured Credit Facility [Member] | Minimum | Prime Rate [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate	4.25%

Debt - Schedule of debt issuanc

Debt - Schedule of debt issuance costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Capitalization, Long-term Debt [Line Items]
Beginning Balance	$ 11,850	$ 9,860	$ 10,470
Additions	11,280	5,679	1,418
Extinguishment	(10,285)	(1,277)
Amortization	(2,596)	(2,412)	(2,028)
Ending Balance	10,249	11,850	9,860
Term Loan facility [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Additions	10,206
Amortization	(786)
Ending Balance	9,420
First Lien Term Loan [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Beginning Balance	7,699	6,842	6,873
Additions	147	2,567	1,418
Extinguishment	(6,775)	(35)
Amortization	(1,071)	(1,675)	(1,449)
Ending Balance		7,699	6,842
Second Lien Term Loan [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Beginning Balance	1,762	2,769	3,276
Additions		719
Extinguishment	(1,577)	(1,242)
Amortization	(185)	(484)	(507)
Ending Balance		1,762	2,769
Senior secured revolving loan facility [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Beginning Balance	2,389	249	321
Additions	927	2,393
Extinguishment	(1,933)
Amortization	(554)	(253)	(72)
Ending Balance	$ 829	$ 2,389	$ 249

Debt - Future principal payment

Debt - Future principal payments on long term debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
2,018	$ 5,652
2,019	5,652
2,020	5,652
2,021	5,652
2,022	5,652
2023 and thereafter	534,065
Total	562,325
Revolving line-of-credit	20,000
Less unamortized debt issuance costs	(10,249)	$ (11,850)	$ (9,860)	$ (10,470)
Total debt	$ 572,076	$ 392,288

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2017	Dec. 31, 2016
Tranche 1 options
Class of Stock [Line Items]
Vesting period		5 years
Vesting term		40% vest on the two-year anniversary of issuance, and the balance vest ratably over the remaining three-year period, subject to the holder's continuous service to the Company as of such vesting date.
Tranche 1 options | Vest in two-year anniversary of issuance [Member]
Class of Stock [Line Items]
Vesting period		2 years
Vesing percentage		40.00%
Tranche 1 options | Balance vest ratably over the remaining three-year period
Class of Stock [Line Items]
Vesting period		2 years
Tranche 1 options | In the event of a change in control and if the holder's employment with the Company is terminated without cause or the holder resigns for good reason [Member]
Class of Stock [Line Items]
Vesting period		24 months
Vesing percentage		100.00%
Tranche 2 options
Class of Stock [Line Items]
Vesting period		10 years
Vesting term		Subject to the holder's continuous service to the Company as of the date immediately prior to such event, the vesting of 100% of the Tranche 2 shares will accelerate in the event of any change in control or Public Offering Sale in which Clearlake receives gross proceeds in such transaction in consideration for the shares of Class A Common Stock held by Clearlake that exceeds two times the amount of paid-in capital received by the Company from Clearlake, plus any accrued and unpaid dividends, less any declared and paid cash dividends with respect to the Class A Common Stock issued to Clearlake.
Tranche 2 options | In the event of a change in control and if the holder's employment with the Company is terminated without cause or the holder resigns for good reason [Member]
Class of Stock [Line Items]
Vesing percentage		100.00%
Tranche 3 options
Class of Stock [Line Items]
Vesting period		10 years
Vesting term		Subject to the holder's continuous service to the Company as of the date immediately prior to such event, the vesting of 100% of the Tranche 3 shares will accelerate in the event of any change in control or Public Offering Sale in which Clearlake receives gross proceeds in such transaction in consideration for the shares of Class A Common Stock held by Clearlake that exceeds 2.5 times the amount of paid-in capital received by the Company from Clearlake, plus any accrued and unpaid dividends, less any declared and paid cash dividends with respect to the Class A Common Stock issued to Clearlake.
Tranche 3 options | In the event of a change in control and if the holder's employment with the Company is terminated without cause or the holder resigns for good reason [Member]
Class of Stock [Line Items]
Vesing percentage		100.00%
Class A common stock
Class of Stock [Line Items]
Voting right		One vote per share
Conversion basis		Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock immediately prior to the closing of a firmly underwritten public offering, or a Public Offering, of the Company's common stock.
Preference dividend per share		$ 1
Cumulative dividend		$ 89,862
Dividend in excess of retained earnings included in additional paid in capital		$ 80,925	$ 81,513
Restricted Stock issued	4,208,258
Class A common stock | Restricted Stock
Class of Stock [Line Items]
Share repurchase price		$ 1
Terms of award		Upon the termination of continuous service of a holder by the Company without cause, following the holder's death or permanent disability, or resignation by holder following certain reductions in salary, the Company may repurchase the Class A shares at a price equal to $1.00 per share, plus 5% of $1.00 per share measured per annum (on a non-compounding basis) measured from the issuance date through such termination date.
Class B convertible common stock
Class of Stock [Line Items]
Voting right		No voting rights
Stock issued, new issue	11,674,430
Share repurchase price		$ 0.01
Class B convertible common stock | Tranche 1 options
Class of Stock [Line Items]
Common Stock were issued, percentage	50.00%
Class B convertible common stock | Tranche 2 options
Class of Stock [Line Items]
Common Stock were issued, percentage	25.00%
Class B convertible common stock | Tranche 3 options
Class of Stock [Line Items]
Common Stock were issued, percentage	25.00%

Stock-based Compensation - Addi

Stock-based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted, net of forfeitures	5,517,524	4,902,155
Shares remaining for future grants	0
Options outstanding	1,528,000	1,473,000	750,000	1,864,000
Options granted to a non-employee for services rendered			529,000
Compensation expense recognized for equity awards	$ 1,289	$ 1,057	$ 233
Unrecognized expense related to nonvested equity awards	4,048
Non-employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized for equity awards	835	$ 538	$ 8
Unrecognized expense related to nonvested equity awards	$ 1,655
Tranche 1 options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Vesting description	40% vest on the two-year anniversary of issuance, and the balance vest ratably over the remaining three-year period, subject to the holder's continuous service to the Company as of such vesting date.
Tranche 1 options | On the two-year anniversary of issuance
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	40.00%
Tranche 2 options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	10 years
Vesting description	Subject to the holder's continuous service to the Company as of the date immediately prior to such event, the vesting of 100% of the Tranche 2 shares will accelerate in the event of any change in control or Public Offering Sale in which Clearlake receives gross proceeds in such transaction in consideration for the shares of Class A Common Stock held by Clearlake that exceeds two times the amount of paid-in capital received by the Company from Clearlake, plus any accrued and unpaid dividends, less any declared and paid cash dividends with respect to the Class A Common Stock issued to Clearlake.
Tranche 3 options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	10 years
Vesting description	Subject to the holder's continuous service to the Company as of the date immediately prior to such event, the vesting of 100% of the Tranche 3 shares will accelerate in the event of any change in control or Public Offering Sale in which Clearlake receives gross proceeds in such transaction in consideration for the shares of Class A Common Stock held by Clearlake that exceeds 2.5 times the amount of paid-in capital received by the Company from Clearlake, plus any accrued and unpaid dividends, less any declared and paid cash dividends with respect to the Class A Common Stock issued to Clearlake.
Class B convertible common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance	5,517,524	4,952,155
Option Vested	1,402,000	2,835,000
Options granted to a non-employee for services rendered			529,000
Total estimated fair value of share awards and options granted	$ 1,000	$ 636	$ 88
Class B convertible common stock | Non-employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option Vested	158,618	105,745
Class B convertible common stock | Tranche 1 options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	261,000	219,000
Option Vested	95,000
Class B convertible common stock | Vesting Condition 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting description	Only vest upon the Company experiencing a change of control or Public Offering Sale and provide a return of value when Clearlake achieves an exit return target, or otherwise cliff vest after 10 years from issuance
Options outstanding	1,266,000	1,254,000
Class B convertible common stock | Vesting Condition 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting description	Vest upon the Company experiencing a change of control or Public Offering and provide a return of value when Clearlake achieves an exit return target, or otherwise cliff vest after 10 years from issuance
Options outstanding	7,415,336	7,415,336

Stock-based Compensation - Weig

Stock-based Compensation - Weighted-average Assumptions (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected life (in years)	8 years 9 months 18 days	8 years 7 months 6 days
Expected volatility	42.80%	43.10%
Dividend yield	0.00%	0.00%
Risk-free interest rate	2.10%	2.10%

Stock-based Compensation - Summ

Stock-based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Shares Underlying Options
Beginning Balance		1,473	750	1,864
Granted		616	773	1,057
Forfeited		(30)	(50)	(210)
Exercised		(531)		(1,961)
Ending Balance		1,528	1,473	750	1,864
Fully vested and expected to vest at December 31, 2017		1,479
Exercisable at December 31, 2017		95
Weighted-Average Exercise Price
Beginning Balance		$ 0.80	$ 0.01	$ 0.01
Granted		3.40	1.62	0.01
Forfeited		0.01	1.62	0.01
Exercised		3.40		0.01
Ending Balance		0.96	0.80	0.01	$ 0.01
Fully vested and expected to vest at December 31, 2017		0.93
Exercisable at December 31, 2017		1.62
Weighted-Average Grant-Date Fair Value
Beginning Balance		0.48	0.15	0.15
Granted		1.63	0.82	0.15
Forfeited		0.15	0.87	0.15
Exercised		1.66		0.15
Ending Balance		0.54	$ 0.48	$ 0.15	$ 0.15
Fully vested and expected to vest at December 31, 2017		0.52
Exercisable at December 31, 2017		$ 0.66
Aggregate Intrinsic Value
Aggregate Intrinsic Value, outstanding	[1]	$ 7,319	$ 3,829	$ 1,208
Aggregate Intrinsic Value, Fully vested and expected to vest at December 31, 2017	[1]	7,124
Aggregate Intrinsic Value, Exercisable at December 31, 2017	[1]	$ 169
Weighted-Average Remaining Contract Term (Years)
Outstanding		7 years 7 months 6 days	8 years 6 months	8 years 9 months 18 days	9 years 10 months 24 days
Fully vested and expected to vest at December 31, 2017		7 years 7 months 6 days
Exercisable at December 31, 2017		8 years 1 month 6 days
[1]	Aggregate intrinsic value represents the difference between the estimated fair value of the underlying common stock and the exercise price of outstanding, in-the-money options at the date of measurement.

Stock-based Compensation - Acti

Stock-based Compensation - Activity of Unvested Options (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Shares Underlying Options
Granted	616	773	1,057
Exercised	(531)		(1,961)
Weighted- Average Grant- Date Fair Value Per Option
Granted	$ 1.63	$ 0.82	$ 0.15
Forfeited	$ 0.15	$ 0.87	$ 0.15
Unvested Options
Shares Underlying Options
Beginning Balance	1,458	750	1,864
Granted	616	773	1,057
Vested	(80)	(15)
Forfeited	(30)	(50)	(210)
Exercised	(531)		(1,961)
Ending Balance	1,433	1,458	750
Weighted- Average Grant- Date Fair Value Per Option
Beginning Balance	$ 0.47	$ 0.15	$ 0.15
Granted	1.63	0.82	0.15
Vested	0.66	0.65
Forfeited	0.15	0.87	0.15
Exercised	1.66		0.15
Ending Balance	$ 0.53	$ 0.47	$ 0.15

Stock-based Compensation - Ac60

Stock-based Compensation - Activity for Class B Common Stock (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Granted or issued, share	616	773	1,057
Weighted- Average Grant- Date Fair Value Per Option
Granted or issued, weighted average grant date fair value, per share	$ 1.63	$ 0.82	$ 0.15
Class B convertible common stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Beginning Balance	11,867	14,702	13,142
Granted or issued, share	531		1,961
Vested, share	(1,402)	(2,835)
Repurchased, share	(402)		(401)
Ending Balance	10,594	11,867	14,702
Weighted- Average Grant- Date Fair Value Per Option
Beginning Balance	$ 0.15		$ 0.15
Granted or issued, weighted average grant date fair value, per share	1.66		0.15
Vested, weighted average grant date fair value, per share	0.15	$ 0.15
Repurchased, weighted average grant date fair value, per share	0.15		$ 0.15
Ending Balance	$ 0.23	$ 0.15

Net Income (Loss) Per Share - A

Net Income (Loss) Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Oct. 31, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net income per share		$ 0.06	$ 0.01	$ (0.13)	$ (0.03)	$ 0.03	$ 0.05	$ 0.03	$ (0.01)	$ (0.09)	$ 0.09	$ 0.04
Class A common stock
Preferential dividend	$ 89,862
Excess dividend above earnings										$ 80,925	$ 81,513
Dilutive securities										0	0

Reconciliation of Weighted Aver

Reconciliation of Weighted Average Number of Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Numerator :
Net income (loss) attributable to Class A common stockholders	$ 5,164	$ 1,303	$ (11,367)	$ (3,121)	$ 2,163	$ 4,698	$ 2,501	$ (1,013)	$ (8,021)	$ 8,349	$ 4,023
Denominator:
Weighted-average Class A common shares-basic									89,778	89,862	89,866
Effect of dilutive securities:
Stock options and non-vested shares									0	0	0
Weighted-average Class A common shares-diluted									89,778	89,862	89,866
Net income (loss) per share attributable to Class A common stockholders, basic and diluted	$ 0.06	$ 0.01	$ (0.13)	$ (0.03)	$ 0.03	$ 0.05	$ 0.03	$ (0.01)	$ (0.09)	$ 0.09	$ 0.04

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jul. 14, 2017	Dec. 31, 2016
Fair Value Measurements [Line Items]
Business acquisition, contingent consideration liability	$ 956,000
Asset impairment charges	0
Annese
Fair Value Measurements [Line Items]
Business acquisition, contingent consideration liability	956,000	$ 956,000
Fair Value, Inputs, Level 3
Fair Value Measurements [Line Items]
Long term debt, fair value	582,325,000		$ 404,138,000
Fair Value, Inputs, Level 3 | Annese
Fair Value Measurements [Line Items]
Business acquisition, contingent consideration liability	$ 956,000

Major Vendor and Economic Depen

Major Vendor and Economic Dependence - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Distributor	Dec. 31, 2016USD ($)	Dec. 31, 2015
Vendors | Cost of Goods, Product Line | Avaya Inc
Concentration Risk [Line Items]
Concentration Risk, Percentage	21.00%	30.00%	41.00%
Vendors | Cost of Goods, Product Line | Cisco Systems Inc
Concentration Risk [Line Items]
Concentration Risk, Percentage	39.00%	29.00%	25.00%
Customer Concentration Risk [Member] | Sales Revenue, Services, Net [Member] | Avaya Inc
Concentration Risk [Line Items]
Concentration Risk, Percentage	23.00%	27.00%	33.00%
Supplier Concentration Risk [Member] | Cost of Goods, Product Line | Avaya communication products [Member]
Concentration Risk [Line Items]
Number of distributor | Distributor	1
Accounts Payable | $	$ 28,000	$ 27,000

Operating Lease - Future minimu

Operating Lease - Future minimum Annual Rental Commitment (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Leases, Operating [Abstract]
2,018	$ 8,176
2,019	5,978
2,020	4,661
2,021	3,830
2,022	3,175
2023 and thereafter	3,964
Total	$ 29,784

Operating Leases - Additional I

Operating Leases - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Leases [Abstract]
Operating leases, rent expense	$ 5,402	$ 4,648	$ 3,360

Employee benefit plan - Additio

Employee benefit plan - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Contribution Plan [Abstract]
Defined Contribution Plan, employer contribution	$ 4,009	$ 2,965	$ 2,400

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
U.S. federal income tax rate		35.00%	35.00%	35.00%
Tax legislation, remeasurement of U.S. deferred tax assets and liabilities, estimated income tax expense		$ 9,812
Scenario, Forecast
Income Tax Contingency [Line Items]
U.S. federal income tax rate	21.00%
Domestic Tax Authority
Income Tax Contingency [Line Items]
Operating Loss Carryforwards		$ 4,300
Operating Loss Carryforwards, Expiration Year		2,031
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		$ 1,392	$ 1,445
Income Tax Examination, Penalties and Interest Expense		6	111	$ 0
Income Tax Examination, Penalties and Interest Accrued		$ 117	$ 111
Domestic Tax Authority | Tax Year 2014
Income Tax Contingency [Line Items]
Income Tax Examination, Year under Examination		2,014
Domestic Tax Authority | Tax Year 2015
Income Tax Contingency [Line Items]
Income Tax Examination, Year under Examination		2,015
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating Loss Carryforwards		$ 19,300
Operating Loss Carryforwards, Expiration Year		2,020

Income Taxes - Summary of compo

Income Taxes - Summary of components of Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current
Federal	$ (10,689)	$ 9,535	$ 5,170
State	(611)	1,246	1,321
Current Income Tax Expense (Benefit)	(11,300)	10,781	6,491
Deferred
Federal	(7,374)	(2,445)	(2,595)
State	(674)	(1,620)	(322)
Deferred Income Tax Expense (Benefit)	(8,048)	(4,065)	(2,917)
Income Tax Expense (Benefit)	$ (19,348)	$ 6,716	$ 3,574

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of Effective Income Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Statutory federal income tax rate	$ (9,579)	$ 5,273	$ 2,659
State income taxes, net of federal income tax effect	(896)	857	567
Nondeductible expenses	786	858	280
Deferred rate change	(31)	370
Acquisition accounting adjustment		(351)
Federal tax reform deferred tax impact	(9,812)
Other	184	(291)	68
Income Tax Expense (Benefit)	$ (19,348)	$ 6,716	$ 3,574
Statutory federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax effect	3.30%	5.70%	7.40%
Nondeductible expenses	(2.90%)	5.70%	3.70%
Deferred rate change	0.10%	2.40%
Acquisition accounting adjustment		(2.30%)
Federal tax reform deferred tax impact	35.90%
Other	(0.70%)	(1.90%)	0.90%
Effective tax rate	70.70%	44.60%	47.00%

Income Taxes - Summary of Defer

Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets, Net [Abstract]
Trade accounts receivable	$ 658	$ 619
Inventories	184	262
Other deferred tax assets	584	494
Accrued compensation	2,590	2,960
Deferred revenue	4,449	1,786
Debt financing costs		382
Net operating loss carryforwards	2,014	1,885
Total deferred tax assets	10,479	8,388
Prepaid expenses and deferred customer support contract costs	3,438	4,009
Other	68	132
Property and equipment	3,459	2,872
Goodwill and finite-life intangibles	21,570	39,216
Total deferred tax liabilities	28,535	46,229
Total net deferred tax liabilities	$ (18,056)	$ (37,841)

Income Taxes - Schedule of Re72

Income Taxes - Schedule of Reconciliation of Unrecognized Income Tax Benefit (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unrecognized Tax Benefits [Abstract]
Balance at beginning of period	$ 1,456	$ 1,331	$ 1,331
Additions for tax position of current year	353	364	333
Additions for tax position of prior years		125
Redutions due to statute of limitations lapse	(364)	(364)	(333)
Settlements	0	0	0
Balance at end of period	$ 1,445	$ 1,456	$ 1,331

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017Segment
Segment Reporting [Abstract]
Number of operating segments	1

Segment Reporting - Schedule of

Segment Reporting - Schedule of Revenue by Type of Internal Classification (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Information [Line Items]
Technology offerings									$ 453,106	$ 439,804	$ 297,481
Services									465,820	375,805	303,983
Revenues	$ 299,226	$ 245,412	$ 191,322	$ 182,966	$ 210,528	$ 213,381	$ 209,875	$ 181,825	918,926	815,609	601,464
Collaboration
Segment Information [Line Items]
Technology offerings									227,981	232,357	207,202
Services									381,715	319,208	288,167
Revenues									609,696	551,565	495,369
Enterprise Networks
Segment Information [Line Items]
Technology offerings									225,125	207,447	90,279
Services									84,105	56,597	15,816
Revenues									$ 309,230	$ 264,044	$ 106,095

Related Party Transaction - Add

Related Party Transaction - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 25, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Aug. 17, 2017
Related Party Transaction [Line Items]
Common shares issued upon exercise of options				$ 20
New Board Member [Member] | Class A common stock
Related Party Transaction [Line Items]
Options to purchase common stock					530,772
Common shares issued upon exercise of options	$ 1,805
Related party, promissory note interest rate		2.60%
Related party term		The note bears interest at 2.6% and is due and payable in full upon the earliest of (i) September 25, 2027, (ii) the date on which the first registration statement is filed with the United States Securities and Exchange Commission under the Securities Act of 1933, as amended, offering securities of the Company to the public, (iii) the dissolution or liquidation of the Company, and (iv) within 10 days after the date on which the individual is no longer a director of the Company.
Clearlake [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expense		$ 1,500	$ 1,500	1,500
Clearlake [Member] | Accrued Liabilities [Member]
Related Party Transaction [Line Items]
Related Party Transaction, accrued expense		375	375	$ 375
Consulting Fee [Member] | Clearlake [Member]
Related Party Transaction [Line Items]
Related Party Transaction, payment to related party		140	$ 100
Maximum | Clearlake [Member]
Related Party Transaction [Line Items]
Management fee		$ 375

Quarterly Financial Data (Detai

Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Data [Abstract]
Total revenue	$ 299,226	$ 245,412	$ 191,322	$ 182,966	$ 210,528	$ 213,381	$ 209,875	$ 181,825	$ 918,926	$ 815,609	$ 601,464
Gross profit	92,482	70,923	57,787	53,293	68,969	64,277	61,171	54,827	274,485	249,244	193,446
Operating income	2,627	6,834	12,132	3,077	16,140	14,986	10,835	4,541	24,670	46,502	30,715
Net income (loss)	$ 5,164	$ 1,303	$ (11,367)	$ (3,121)	$ 2,163	$ 4,698	$ 2,501	$ (1,013)	$ (8,021)	$ 8,349	$ 4,023
Net income (loss) per share attributable to Class A common stockholders, basic and diluted	$ 0.06	$ 0.01	$ (0.13)	$ (0.03)	$ 0.03	$ 0.05	$ 0.03	$ (0.01)	$ (0.09)	$ 0.09	$ 0.04
Cash dividends per share of Class A common stock					$ 1					$ 1

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Apr. 20, 2018	Apr. 10, 2018	Mar. 01, 2018	Feb. 26, 2018	Dec. 31, 2017	Mar. 23, 2018	Feb. 22, 2018	Feb. 13, 2018	Dec. 31, 2016
Subsequent Event [Line Items]
Debt aggregate principal amount					$ 582,325,000				$ 404,138,000
Original debt issue discount					$ 5,623,000				$ 2,761,000
Senior Secured Term Loan [Member]
Subsequent Event [Line Items]
Debt payment term					The principal installments in the amount of $1,675,000 are due on the last business day of each quarter commencing September 30, 2018, with the remaining outstanding principal amount to be paid on its maturity date of April 10, 2025.
Debt agreement requirement					The Term Loan Agreement requires the Company to prepay outstanding Term Loans, subject to certain exceptions, in amounts equal to the following: commencing with the year ending December 31, 2018, 50% of “excess cash flow” (which percentage steps down to 25% and 0% when we obtain certain consolidated total net leverage ratios), provided that any mandatory “excess cash flow” prepayment shall be at least $10 million; 100% of the net cash proceeds of all non-ordinary course asset sales or other dispositions of property (which percentage steps down to 50% when we obtain a certain consolidated total net leverage ratio); and 100% of the net cash proceeds of any incurrence of debt, other than debt permitted to be incurred or issued under the Term Loan Agreement.
Senior secured revolving loan facility [Member]
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity					$ 150,000,000
Line of credit facility, borrowing capacity					150,000,000
Debt aggregate principal amount					$ 20,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Warrants outstanding	1,354,810						8,936,250
Warrant exercise price							$ 11.50
Subsequent Event [Member] | Forum [Member]
Subsequent Event [Line Items]
Ownership interest							54.70%
Subsequent Event [Member] | Clearlake [Member]
Subsequent Event [Line Items]
Ownership interest							8.80%
Subsequent Event [Member] | IPO [Member]
Subsequent Event [Line Items]
Warrants outstanding	1,091,060						8,624,999
Subsequent Event [Member] | Private Placement [Member]
Subsequent Event [Line Items]
Warrants outstanding	263,750						311,250
Subsequent Event [Member] | Tender Offers [Member]
Subsequent Event [Line Items]
Warrant exercise price	$ 1.20			$ 0.95		$ 1.20
Number of warrants offered to purchase for cash				8,936,250
Number of warrants purchased for cash through tender offer	7,581,439
Aggregate purchase price of warrant	$ 9,098,000
Subsequent Event [Member] | Senior Secured Term Loan [Member]
Subsequent Event [Line Items]
Debt aggregate principal amount		$ 670,000,000
Debt financing transaction costs		5,255,000
Original debt issue discount		3,700,000
Debt principal installments		$ 1,675,000
Debt maturity date		Apr. 10, 2025
Debt instrument prepayment percentage		1.00%
Subsequent Event [Member] | Base Rate [Member] | Senior Secured Term Loan [Member]
Subsequent Event [Line Items]
Debt interest rate		2.75%
Subsequent Event [Member] | Eurodollar [Member] | Senior Secured Term Loan [Member]
Subsequent Event [Line Items]
Debt interest rate		3.75%
Subsequent Event [Member] | Arrow Systems Integration, Inc. ('ASI') [Member]
Subsequent Event [Line Items]
Business acquisition, cash consideration			$ 30,655,000
Subsequent Event [Member] | Senior secured revolving loan facility [Member]
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity		$ 200,000,000						$ 200,000,000
Line of credit facility, borrowing capacity		200,000,000						200,000,000
Financing transaction costs								$ 175,000
Repayment of credit facilities		90,000,000
Line of Credit Facility, Outstanding Amount		$ 0
Line of credit facility, maturity date		Jun. 20, 2022