Vonage 10-Q 31 Jul 14 2014 Q2 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 30, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Jun-14	'
Entity Registrant Name	'VONAGE HOLDINGS CORP	'
Entity Central Index Key	'0001272830	'
Current Fiscal Year End Date	'--12-31	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	209,052,038

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$54,962	$84,663
Accounts receivable, net of allowance of $699 and $683, respectively	21,705	19,649
Inventory, net of allowance of $115 and $229, respectively	7,266	10,584
Deferred customer acquisition costs, current	4,318	4,991
Deferred tax assets, current	18,361	18,361
Prepaid expenses and other current assets	23,523	16,892
Total current assets	130,135	155,140
Property and equipment, net	44,830	52,243
Goodwill	83,627	83,627
Software, net	22,068	20,557
Deferred customer acquisition costs, non-current	144	193
Debt related costs, net	769	1,313
Restricted cash	3,411	4,405
Intangible assets, net	68,207	76,850
Deferred tax assets, non-current	238,004	246,539
Other assets	1,450	1,882
Total assets	592,645	642,749
Current liabilities:	'	'
Accounts payable	40,684	49,867
Accrued expenses	76,406	81,127
Deferred revenue, current portion	35,666	36,899
Current maturities of capital lease obligations	3,119	2,889
Current portion of notes payables	23,333	23,333
Total current liabilities	179,208	194,115
Indebtedness under revolving credit facility	55,000	75,000
Notes payable, net of current portion	11,667	23,333
Deferred revenue, net of current portion	797	436
Capital lease obligations, net of current maturities	8,585	10,201
Other liabilities, net of current portion in accrued expenses	1,660	1,628
Total liabilities	256,917	304,713
Commitments and Contingencies	0	0
Redeemable noncontrolling interest	-587	-38
Stockholders’ Equity	'	'
Common stock, par value $0.001 per share; 596,950 shares authorized at June 30, 2014 and December 31, 2013; 250,994 and 246,741 shares issued at June 30, 2014 and December 31, 2013, respectively; 210,101 and 212,339 shares outstanding at June 30, 2014 and December 31, 2013, respectively	253	247
Additional paid-in capital	1,151,033	1,136,289
Accumulated deficit	-687,835	-697,941
Treasury stock, at cost, 40,893 shares at June 30, 2014 and 34,402 shares at December 31, 2013	-126,597	-101,040
Accumulated other comprehensive (loss) income	-539	519
Total stockholders’ equity	336,315	338,074
Total liabilities, redeemable noncontrolling interest, and stockholders’ equity	$592,645	$642,749

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Accounts receivable, allowance	$699	$683
Inventory, allowance	$115	$229
Common stock, par value (USD per share)	$0.00	$0.00
Common stock, shares authorized	596,950,000	596,950,000
Common stock, shares issued	250,994,000	246,741,000
Common stock, shares outstanding	210,101,000	212,339,000
Treasury stock, shares	40,893,000	34,402,000

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues	$218,882	$204,776	$439,615	$413,863
Operating Expenses:	'	'	'	'
Direct cost of telephony services (excluding depreciation and amortization of $5,098, $3,510, $10,252, and $6,962, respectively)	52,385	53,527	105,002	108,708
Direct cost of goods sold	9,450	9,217	19,189	18,095
Selling, general and administrative	73,569	61,481	152,022	124,391
Marketing	59,003	58,330	116,267	109,999
Depreciation and amortization	12,459	8,205	24,797	16,180
Total operating expenses	206,866	190,760	417,277	377,373
Income from operations	12,016	14,016	22,338	36,490
Other Income (Expense):	'	'	'	'
Interest income	31	74	122	111
Interest expense	-1,434	-1,732	-3,511	-3,189
Other income (expense), net	36	-17	23	-56
Total other income (expense)	-1,367	-1,675	-3,366	-3,134
Income before income tax expense	10,649	12,341	18,972	33,356
Income tax expense	-5,266	-4,894	-9,384	-12,862
Net income	5,383	7,447	9,588	20,494
Plus: Net loss attributable to noncontrolling interest	135	0	518	0
Net income attributable to Vonage	$5,518	$7,447	$10,106	$20,494
Net income attributable to Vonage per common share:	'	'	'	'
Basic (USD per share)	$0.03	$0.04	$0.05	$0.10
Diluted (USD per share)	$0.02	$0.03	$0.05	$0.09
Weighted-average common shares outstanding:	'	'	'	'
Basic (in shares)	211,390	212,169	211,790	213,404
Diluted (in shares)	221,002	219,837	221,310	222,331

Consolidated_Statements_of_Inc1

Consolidated Statements of Income (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Depreciation and Amortization	$5,098	$3,510	$10,252	$6,962

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income	$5,383	$7,447	$9,588	$20,494
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustment	397	-1,063	-1,089	-1,687
Total other comprehensive income (loss)	397	-1,063	-1,089	-1,687
Comprehensive income	5,780	6,384	8,499	18,807
Comprehensive loss attributable to noncontrolling interest:	'	'	'	'
Add: Net loss	-135	0	-518	0
Foreign currency translation adjustment	-12	0	-31	0
Total comprehensive loss attributable to noncontrolling interest	-147	0	-549	0
Comprehensive income attributable to Vonage	$5,927	$6,384	$9,048	$18,807

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income	$9,588	$20,494
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization and impairment charges	16,154	14,993
Amortization of intangibles	8,643	1,187
Deferred tax expense	8,409	12,469
Allowance for doubtful accounts	-183	-100
Allowance for obsolete inventory	216	230
Amortization of debt related costs	544	783
Share-based expense	11,114	8,401
Changes in operating assets and liabilities:	'	'
Accounts receivable	-1,814	-2,823
Inventory	3,100	-5,118
Prepaid expenses and other current assets	-6,794	-8,229
Deferred customer acquisition costs	729	-1,009
Other assets	432	1,668
Accounts payable	-9,266	-30,397
Accrued expenses	-6,543	16,490
Deferred revenue	-892	-466
Other liabilities	32	31
Net cash provided by operating activities	33,469	28,604
Cash flows from investing activities:	'	'
Capital expenditures	-3,099	-5,803
Acquisition and development of software assets	-7,031	-6,197
Decrease in restricted cash	998	1,256
Net cash used in investing activities	-9,132	-10,744
Cash flows from financing activities:	'	'
Principal payments on capital lease obligations	-1,386	-1,184
Principal payments on notes and revolving credit facility	-31,666	-11,667
Proceeds received from issuance of notes payable	0	27,500
Debt related costs	0	-2,009
Common stock repurchases	-23,525	-30,066
Proceeds from exercise of stock options, net of stock cancellation payment	3,615	2,505
Net cash used in by financing activities	-52,962	-14,921
Effect of exchange rate changes on cash	-1,076	-1,501
Net change in cash and cash equivalents	-29,701	1,438
Cash and cash equivalents, beginning of period	84,663	97,110
Cash and cash equivalents, end of period	54,962	98,548
Cash paid during the periods for:	'	'
Interest	2,690	2,032
Income taxes	1,145	1,448
Non-cash financing transactions during the periods for:	'	'
Common stock repurchases	$558	$629

Consolidated_Statement_Of_Stoc

Consolidated Statement Of Stockholders' Equity And Redeemable Noncontrolling Interest (USD $)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Redeemable non-controlling interest
In Thousands, unless otherwise specified
Balance at December 31, 2013 at Dec. 31, 2013	$338,074	$247	$1,136,289	($697,941)	($101,040)	$519	($38)
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Stock option exercises	3,615	6	3,609	'	'	'	'
Share-based expense	11,114	'	11,114	'	'	'	'
Share-based award activity	-1,976	'	'	'	-1,976	'	'
Common stock repurchases	-23,347	'	'	'	-23,347	'	'
Other	-213	'	21	'	-234	'	'
Foreign currency translation adjustment	-1,089	'	'	'	'	-1,058	-31
Net income (loss)	9,588	'	'	10,106	'	'	-518
Balance at June 30, 2014 at Jun. 30, 2014	$336,315	$253	$1,151,033	($687,835)	($126,597)	($539)	($587)

Basis_of_Presentation_and_Sign

Basis of Presentation and Significant Accounting Policies

6 Months Ended

Jun. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

'

Basis of Presentation and Significant Accounting Policies

'

Basis of Presentation and Significant Accounting Policies

Nature of Operations

Vonage Holdings Corp. (“Vonage”, “Company”, “we”, “our”, “us”) is incorporated as a Delaware corporation. We are a leading provider of communications services connecting consumers and businesses through cloud-connected devices worldwide. Customers in the United States represented 94% of our subscriber lines for our broadband telephone replacement services at June 30, 2014, with the balance primarily in Canada and the United Kingdom.

Unaudited Interim Financial Information

The accompanying unaudited interim consolidated financial statements and information have been prepared in accordance with accounting principles generally accepted in the United States and in accordance with the instructions for Form 10-Q. Accordingly, they do not include all of the information and disclosures required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, these financial statements contain all normal and recurring adjustments considered necessary to present fairly the financial position, results of operations, cash flows, and statement of stockholders’ equity for the periods presented. The results for the three and six months ended June 30, 2014 are not necessarily indicative of the results to be expected for the full year.

These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2013 filed with the Securities and Exchange Commission on February 13, 2014.

Significant Accounting Policies

Principles of Consolidation

The consolidated financial statements include the accounts of Vonage and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. We also consolidate a majority-owned entity in Brazil where we have the ability to exercise controlling influence. The ownership interest of the noncontrolling party is presented as redeemable noncontrolling interest.

Use of Estimates

Our consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States, which require management to make estimates and assumptions that affect the amounts reported and disclosed in the consolidated financial statements and the accompanying notes. Actual results could differ materially from these estimates.

On an ongoing basis, we evaluate our estimates, including the following:

•

the useful lives of property and equipment, software costs, and intangible assets;

•

assumptions used for the purpose of determining share-based compensation using the Black-Scholes option pricing model and Monte Carlo simulation model (“Models”), and various other assumptions that we believe to be reasonable; the key inputs for these Models include our stock price at valuation date, exercise price, the dividend yield, risk-free interest rate, life in years, and historical volatility of our common stock; and

•

assumptions used in determining the need for, and amount of, a valuation allowance on net deferred tax assets.

We base our estimates on historical experience, available market information, appropriate valuation methodologies, and on various other assumptions that we believe to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.

Revenue Recognition

Operating revenues consist of telephony services revenues and customer equipment (which enables our telephony services) and shipping revenues. The point in time at which revenues are recognized is determined in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 104, Revenue Recognition, and Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605, Revenue Recognition.

At the time a customer signs up for our telephony services, there are the following deliverables:

•

Providing equipment, if any, to the customer that enables our telephony services; and

•

Providing telephony services.

The equipment is generally provided free of charge to our customers and in most instances there are no fees collected at sign-up. We record the fees collected for shipping the equipment to the customer, if any, as shipping and handling revenue at the time of shipment.

Telephony Services Revenue

Substantially all of our revenues are telephony services revenues, which are derived primarily from monthly subscription fees that customers are charged under our service plans. We also derive telephony services revenues from per minute fees for international calls if not covered under a plan, including calls made via applications for mobile devices and other stand-alone products, and for any calling minutes in excess of a customer’s monthly plan limits. Monthly subscription fees are automatically charged to customers’ credit cards, debit cards or electronic check payments ("ECP"), in advance and are recognized over the following month when services are provided. Revenues generated from international calls and from customers exceeding allocated call minutes under limited minute plans are recognized as services are provided, that is, as minutes are used, and are billed to a customer's credit cards, debit cards or ECP in arrears. As a result of multiple billing cycles each month, we estimate the amount of revenues earned from international calls and from customers exceeding allocated call minutes under limited minute plans but not billed from the end of each billing cycle to the end of each reporting period and record these amounts as accounts receivable. These estimates are based primarily upon historical minutes and have been consistent with our actual results.

We also provide rebates to customers who purchase their customer equipment from retailers and satisfy minimum service period requirements. These rebates in excess of activation fees are recorded as a reduction of revenues over the service period based upon the estimated number of customers that will ultimately earn and claim the rebates.

In the United States, we charge regulatory, compliance, E-911, and intellectual property-related fees on a monthly basis to defray costs, and to cover taxes that we are charged by the suppliers of telecommunications services. In addition, we charge customers Federal Universal Service Fund (“USF”) fees. We recognize revenue on a gross basis for USF and related fees. We record these fees as revenue when billed. All other taxes are recorded on a net basis.

Customer Equipment and Shipping Revenue

Customer equipment and shipping revenues consist of revenues from sales of customer equipment to wholesalers or directly to customers for replacement devices, or for upgrading their device at the time of customer sign-up for which we charge an additional fee. In addition, customer equipment and shipping revenues include revenues from the sale of VoIP telephones in order to access our small and medium business services on a net basis rather than a gross basis. Customer equipment and shipping revenues also include the fees that customers are charged for shipping their customer equipment to them. Customer equipment and shipping revenues include sales to our retailers, who subsequently resell this customer equipment to customers. Revenues are reduced for payments to retailers and rebates to customers, who purchased their customer equipment through these retailers, to the extent of customer equipment and shipping revenues.

Direct Cost of Telephony Services

Direct cost of telephony services consists primarily of direct costs that we pay to third parties in order to provide telephony services. These costs include access and interconnection charges that we pay to other telephone companies to terminate domestic and international phone calls on the public switched telephone network. In addition, these costs include the cost to lease phone numbers, to co-locate in other telephone companies’ facilities, to provide enhanced emergency dialing capabilities to transmit 911 calls, and to provide local number portability. These costs also include taxes that we pay on telecommunications services from our suppliers or are imposed by government agencies such as Federal USF and royalties for use of third parties’ intellectual property. These costs do not include indirect costs such as depreciation and amortization, payroll, and facilities costs. Our presentation of direct cost of telephony services may not be comparable to other similar companies.

Direct Cost of Goods Sold

Direct cost of goods sold consists primarily of costs that we incur when a customer signs up for our service. These costs include the cost of customer equipment for customers who subscribe through the direct sales channel in excess of activation fees. In addition, these costs include the amortization of deferred customer equipment, the cost of shipping and handling for customer equipment, the installation manual that accompanies the customer equipment, and the cost of certain promotions.

Development Expenses

Costs for research, including predevelopment efforts prior to establishing technological feasibility of software expected to be marketed, are expensed as incurred. Development costs are capitalized when technological feasibility has been established and anticipated future revenues support the recoverability of the capitalized amounts. Capitalization stops when the product is available for general release to customers. Due to the short time period between achieving technological feasibility and product release and the insignificant amount of costs incurred during such periods, we have not capitalized any software development, and have expensed these costs as incurred. These costs are included in selling, general and administrative expense.

Cash and Cash Equivalents

We maintain cash with several investment grade financial institutions. Highly liquid investments, which are readily convertible into cash, with original maturities of three months or less, are recorded as cash equivalents.

Certain Risks and Concentrations

Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash equivalents and accounts receivable. They are subject to fluctuations in both market value and yield based upon changes in market conditions, including interest rates, liquidity, general economic conditions, and conditions specific to the issuers. Accounts receivable are typically unsecured and are derived from revenues earned from customers primarily located in the United States. A portion of our accounts receivable represents the timing difference between when a customer’s credit card is billed and the subsequent settlement of that transaction with our credit card processors. This timing difference is generally three days for substantially all of our credit card receivables. We have never experienced any accounts receivable write-offs due to this timing difference. In addition, we collect subscription fees in advance, minimizing our accounts receivable and bad debt exposure. If a customer’s credit card, debit card or ECP is declined, we generally suspend international calling capabilities as well as their ability to incur domestic usage charges in excess of their plan minutes. If the customer’s credit card, debit card or ECP could not be successfully processed during three billing cycles (i.e., the current and two subsequent monthly billing cycles), we terminate the account. In addition, we automatically charge any per minute fees to our customers’ credit card, debit card or ECP monthly in arrears. To further mitigate our bad debt exposure, a customer’s credit card, debit card or ECP will be charged in advance of their monthly billing if their international calling or overage charges exceed a certain dollar threshold.

Inventory

Inventory consists of the cost of customer equipment and is stated at the lower of cost or market, with cost determined using the average cost method. We provide an inventory allowance for customer equipment that has been returned by customers but may not be able to be reissued to new customers or returned to the manufacturer for credit.

Property and Equipment

Property and equipment includes acquired assets and those accounted for under capital leases and consist principally of network equipment and computer hardware, furniture, software, and leasehold improvements. In addition, the lease of our corporate headquarters has been accounted for as a capital lease and is included in property and equipment. Network equipment and computer hardware and furniture are stated at cost with depreciation provided using the straight-line method over the estimated useful lives of the related assets, which range from three to five years. Leasehold improvements are amortized over their estimated useful life of the related assets or the life of the lease, whichever is shorter. The cost of renewals and substantial improvements is capitalized while the cost of maintenance and repairs is charged to operating expenses as incurred.

Our network equipment and computer hardware, which consists of routers, gateways, and servers that enable our telephony services, is subject to technological risks and rapid market changes due to new products and services and changing customer demand. These changes may result in future adjustments to the estimated useful lives or the carrying value of these assets, or both.

Software Costs

We capitalize certain costs, such as purchased software and internally developed software that we use for customer acquisition and customer care automation tools, in accordance with FASB ASC 350-40, “Internal-Use Software”. Computer software is stated at cost less accumulated amortization and the estimated useful life is two to five years.

Goodwill and Purchased-Intangible Assets

Goodwill acquired in acquisition of a business is accounted for based upon the excess fair value of consideration transferred over the fair value of net assets acquired in the business combination. Goodwill is tested for impairment on an annual basis on October 1st and, when specific circumstances dictate, between annual tests. When impaired, the carrying value of goodwill is written down to fair value. The goodwill impairment test involves a two-step process. The first step, identifying a potential impairment, compares the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be conducted; otherwise, no further steps are necessary as no potential impairment exists. The second step, measuring the impairment loss, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. Any excess of the reporting unit goodwill carrying value over the respective implied fair value is recognized as an impairment loss.

Purchased-intangible assets are accounted for based upon the fair value of assets received. Purchased-intangible assets are amortized on a straight-line or accelerated basis over the periods of benefit, ranging from two to ten years. We perform a review of purchased-intangible assets whenever events or changes in circumstances indicate that the useful life is shorter than we had originally estimated or that the carrying amount of assets may not be recoverable. If such facts and circumstances exist, we assess the recoverability of purchased-intangible assets by comparing the projected undiscounted net cash flows associated with the related asset or group of assets over their remaining lives against their respective carrying amounts. Impairments, if any, are based on the excess of the carrying amount over the fair value of those assets. If the useful life of the asset is shorter than originally estimated, we accelerate the rate of amortization and amortize the remaining carrying value over the new shorter useful life. There was no impairment of purchased-intangible assets identified for the three and six months ended June 30, 2014.

Intangible Assets

Intangible assets acquired in the settlement of litigation or by direct purchase are accounted for based upon the fair value of assets received.

Patents and Patent Licenses

Patent rights acquired in the settlement of litigation or by direct purchase are accounted for based upon the fair value of assets received.

Long-Lived Assets

We evaluate impairment losses on long-lived assets used in operations when events and changes in circumstances indicate that the assets might be impaired. If our review indicates that the carrying value of an asset will not be recoverable, based on a comparison of the carrying value of the asset to the undiscounted future cash flows, the impairment will be measured by comparing the carrying value of the asset to its fair value. Fair value will be determined based on quoted market values, discounted cash flows or appraisals. Impairments are recorded in the statement of operations as part of depreciation expense.

Debt Related Costs

Costs incurred in raising debt are deferred and amortized as interest expense using the effective interest method over the life of the debt.

Redeemable Noncontrolling Interest

We consolidate a majority-owned entity where we have the ability to exercise controlling influence. The ownership interest of the noncontrolling party is presented as noncontrolling interest. If we are required to repurchase the noncontrolling interest at fair value, subject to adjustment, under a put option or other contractual redemption requirement, we will report the noncontrolling interest as redeemable in the Consolidated Balance Sheets between liabilities and equity. We adjust the redeemable noncontrolling interest to the redemption values on each balance sheet date with changes recognized as an adjustment to retained earnings, or in the absence of retained earnings, as an adjustment to additional paid-in capital when it becomes probable the noncontrolling interest will become redeemable.

Derivatives

We do not hold or issue derivative instruments for trading purposes. However, in accordance with FASB ASC 815, “Derivatives and Hedging” (“FASB ASC 815”), we review our contractual obligations to determine whether there are terms that possess the characteristics of derivative financial instruments that must be accounted for separately from the financial instrument in which they are embedded. We recognize these features as liabilities in our consolidated balance sheet at fair value each period and recognize any change in the fair value in our statement of operations in the period of change. We estimate the fair value of these liabilities using available market information and appropriate valuation methodologies.

Income Taxes

We recognize deferred tax assets and liabilities at enacted income tax rates for the temporary differences between the financial reporting bases and the tax bases of our assets and liabilities. Any effects of changes in income tax rates or tax laws are included in the provision for income taxes in the period of enactment. Our net deferred tax assets primarily consist of net operating loss carry forwards (“NOLs”). We are required to record a valuation allowance against our net deferred tax assets if we conclude that it is more likely than not that taxable income generated in the future will be insufficient to utilize the future income tax benefit from our net deferred tax assets (namely, the NOLs) prior to expiration. We periodically review this conclusion, which requires significant management judgment. If we are able to conclude in a future period that a future income tax benefit from our net deferred tax assets has a greater than 50 percent likelihood of being realized, we are required in that period to reduce the related valuation allowance with a corresponding decrease in income tax expense. This would result in a non-cash benefit to our net income in the period of the determination. In the fourth quarter of 2011, we released $325,601 of valuation allowance. In subsequent periods, we would expect to recognize income tax expense equal to our pre-tax income multiplied by our effective income tax rate, an expense that was not recognized prior to the reduction of the valuation allowance. Our effective rate may differ from the federal statutory rate due, in part, to our foreign operations and certain discrete period items. The 2014 estimated annual effective tax rate is expected to approximate 49%, but may fluctuate due to the timing of other discrete period transactions.

We file income tax returns in the U.S. on a federal basis and in U.S. state and foreign jurisdictions. Our federal tax return remains subject to examination by the Internal Revenue Service from 2010 to present, our New Jersey tax returns remain open from 2008 to present, our Canada tax return remains open from 2009 to present, and other domestic and foreign tax returns remain open for all periods to which those filings relate. We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate resolution.

We have not had any unrecognized tax benefits. We recognize interest and penalties accrued related to unrecognized tax benefits as components of our income tax provision. We have not had any interest and penalties accrued related to unrecognized tax benefits.

Business Combinations

We account for business combinations using the acquisition method of accounting. The acquisition method of accounting requires that the purchase price, including the fair value of contingent consideration, of the acquisition be allocated to the assets acquired and liabilities assumed using the fair values determined by management as of the acquisition date. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of assets acquired and the liabilities assumed. While the Company uses its best estimates and assumptions as part of the purchase price allocation process to accurately value assets acquired and liabilities assumed at the acquisition date, the Company’s estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company records adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill to the extent the Company identifies adjustments to the preliminary purchase price allocation. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the consolidated statements of operations. We will include the results of all acquisitions in our Consolidated Financial Statements from the date of acquisition.

In connection with the acquisition of Vocalocity, Inc. on November 15, 2013, we recorded preliminary estimates primarily related to income, sales, excise, and ad valorem taxes. As such, the provisional measurements of fair value are subject to change.

Acquisition related transaction costs, such as banking, legal, accounting and other costs incurred in connection with an acquisition, are expensed as incurred in selling, general and administrative expense.

Acquisition related integration costs include costs associated with exit or disposal activities, which do not meet the criteria of discontinued operations, including costs for employee, lease, and contract terminations, facility closing or other exit activities. Additionally, these costs include expenses directly related to integrating and reorganizing acquired businesses and include items such as employee retention costs, recruiting costs, certain moving costs, certain duplicative costs during integration and asset impairments. These costs are expensed as incurred in selling, general and administrative expense.

Foreign Currency

Generally, the functional currency of our non-United States subsidiaries is the local currency. The financial statements of these subsidiaries are translated to United States dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenues, costs, and expenses. Translation gains and losses are deferred and recorded in accumulated other comprehensive income as a component of stockholders’ equity.

Share-Based Compensation

We account for share-based compensation in accordance with FASB ASC 718, “Compensation-Stock Compensation”. Under the fair value recognition provisions of this pronouncement, share-based compensation cost is measured at the grant date based on the fair value of the award, reduced as appropriate based on estimated forfeitures, and is recognized as expense over the applicable vesting period of the stock award using the accelerated method. The excess tax benefit associated with stock compensation deductions have not been recorded in additional paid-in capital. When evaluating whether an excess tax benefit has been realized, share based compensation deductions are not considered realized until NOLs are no longer sufficient to offset taxable income. Such excess tax benefits will be recorded when realized.

Earnings per Share

Net income per share has been computed according to FASB ASC 260, “Earnings per Share”, which requires a dual presentation of basic and diluted earnings per share (“EPS”). Basic EPS represents net income divided by the weighted average number of common shares outstanding during a reporting period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock, including stock options and restricted stock units under our 2001 Stock Incentive Plan and 2006 Incentive Plan, were exercised or converted into common stock. The dilutive effect of outstanding stock options and restricted stock units is reflected in diluted earnings per share by application of the treasury stock method. In applying the treasury stock method for stock-based compensation arrangements, the assumed proceeds are computed as the sum of the amount the employee must pay upon exercise and the amounts of average unrecognized compensation cost attributed to future services.

The following table sets forth the computation for basic and diluted net income per share for the three and six months ended June 30, 2014 and 2013:

Three Months Ended

Six Months Ended

June 30,

June 30,

2014

2013

2014

2013

Numerator

Numerator for basic earnings per share-net income attributable to Vonage

$

5,518

$

7,447

$

10,106

$

20,494

Numerator for diluted earnings per share-net income attributable to Vonage

$

5,518

$

7,447

$

10,106

$

20,494

Denominator

Basic weighted average common shares outstanding

211,390

212,169

211,790

213,404

Dilutive effect of stock options and restricted stock units

9,612

7,668

9,520

8,927

Diluted weighted average common shares outstanding

221,002

219,837

221,310

222,331

Basic net income per share

Basic net income per share

$

0.03

$

0.04

$

0.05

$

0.1

Diluted net income per share

Diluted net income per share

$

0.02

$

0.03

$

0.05

$

0.09

For the three and six months ended June 30, 2014 and 2013, the following were excluded from the calculation of diluted earnings per common share because of their anti-dilutive effects:

Three Months Ended

Six Months Ended

June 30,

June 30,

2014

2013

2014

2013

Restricted stock units

5,486

2,171

5,477

2,357

Stock options

22,447

27,796

22,548

26,349

27,933

29,967

28,025

28,706

Comprehensive Income (Loss)

Comprehensive income (loss) consists of net income and other comprehensive items. Other comprehensive items include foreign currency translation adjustments.

Recent Accounting Pronouncements

In May 2014, Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers". This ASU is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of good or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. This ASU is effective for annual reporting periods beginning after December 15, 2016 and early adoption is not permitted. Accordingly, we will adopt this ASU on January 1, 2017. Companies may use either a full retrospective or modified retrospective approach to adopt this ASU and our management is currently evaluating which transition approach to use. We are currently evaluating the impact of adopting ASU 2014-09 on our consolidated financial statements and related disclosures.

Reclassifications

Certain reclassifications have been made to prior years’ financial statements in order to conform to the current year’s presentation. The reclassifications had no impact on net earnings previously reported.

Supplemental_Balance_Sheet_Acc

Supplemental Balance Sheet Account Information	6 Months Ended
	Jun. 30, 2014
Supplemental Balance Sheet Account Information [Abstract]	'
Supplemental Balance Sheet Account Information	'
	Supplemental Balance Sheet Account Information
	Prepaid expenses and other current assets
		June 30,			December 31, 2013
		2014
	Nontrade receivables	$	9,039		$	7,402
	Services	9,825			7,084
	Telecommunications	493			479
	Insurance	954			757
	Marketing	1,205			312
	Other prepaids	2,007			858
	Prepaid expenses and other current assets	$	23,523		$	16,892
	Property and equipment, net
		June 30,			December 31, 2013
		2014
	Building (under capital lease)	$	25,709		$	25,709
	Network equipment and computer hardware	75,598			78,312
	Leasehold improvements	44,900			44,141
	Furniture	1,422			812
	Vehicles	92			109
		147,721			149,083
	Less: accumulated depreciation and amortization	(102,891		)	(96,840		)
	Property and equipment, net	$	44,830		$	52,243
	Software, net
		June 30,			December 31, 2013
		2014
	Purchased	$	51,117		$	45,178
	Licensed	909			909
	Internally developed	36,088			36,088
		88,114			82,175
	Less: accumulated amortization	(66,046		)	(61,618		)
	Software, net	$	22,068		$	20,557
	Debt related costs, net
		June 30,			December 31, 2013
		2014
	Senior secured term loan	$	4,706		$	4,706
	Less: accumulated amortization	(3,937		)	(3,393		)
	Debt related costs, net	$	769		$	1,313
	Restricted cash
		June 30,			December 31, 2013
		2014
	Letter of credit-lease deposits	$	3,308		$	4,306
	Cash reserves	103			99
	Restricted cash	$	3,411		$	4,405
	Intangible assets, net
		June 30,			December 31, 2013
		2014
	Customer relationships	$	39,100		$	39,100
	Developed technology	35,200			35,200
	Patents and patent licenses	12,764			18,264
	Trademark	560			560
	Trade names	500			500
	Non-compete agreements	200			200
		88,324			93,824
	Less: accumulated amortization	(20,117		)	(16,974		)
	Intangible assets, net	$	68,207		$	76,850
	Accrued expenses
		June 30,			December 31, 2013
		2014
	Compensation and related taxes and temporary labor	$	15,600		$	20,276
	Marketing	26,071			23,277
	Taxes and fees	16,486			18,207
	Litigation and settlements	339			89
	Telecommunications	8,373			7,942
Other accruals	4,335			6,063
Customer credits	1,542			1,719
Professional fees	3,120			2,490
Accrued interest	10			12
Inventory	216			769
Credit card fees	314			283
Accrued expenses	$	76,406		$	81,127

Supplemental_Income_Statement_

Supplemental Income Statement Account Information (Notes)	6 Months Ended
	Jun. 30, 2014
Supplemental Income Statement Account Information [Abstract]	'
Supplemental Income Statement Account Information	'
	Supplemental Income Statement Account Information
	Amounts included in revenues
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	USF fees	$	18,396	$	17,125		$	37,032	$	35,230
	Disconnect fees	$	906	$	1,066		$	1,679	$	2,306
	Initial activation fees	$	273	$	319		$	587	$	673
	Customer equipment fees	$	174	$	12		$	585	$	170
	Equipment recovery fees	$	19	$	26		$	39	$	55
	Shipping and handling fees	$	545	$	322		$	924	$	690
	Amount included in direct cost of telephony services
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	USF costs	$	18,396	$	17,125		$	37,089	$	35,230
	Amount included in direct cost of goods sold
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Shipping and handling cost	$	1,580	$	1,436		$	3,137	$	2,844
	Amount included in selling, general and administrative expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Advertising costs	$	213	$	100		$	325	$	188
	Acquisition related costs	$	—	$	—		$	20	$	—
	Acquisition integration cost	$	4	$	—		$	98	$	—
	Amount included in marketing
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Advertising costs	$	37,122	$	36,089		$	71,696	$	67,815
	Depreciation and amortization expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Network equipment and computer hardware	$	3,602	$	3,339		$	7,211	$	6,647
	Software	2,833		2,659			5,548		5,149
	Capital leases	550		549			1,100		1,098
	Other leasehold improvements	1,081		1,032			2,154		2,036
	Furniture	35		29			69		56
	Vehicles	6		3			7		8
	Patents	505		576			1,081		1,152
	Trademarks	18		18			36		36
	Customer relationship	2,134		—			4,268		—
	Acquired technology	1,574		—			3,148		—
	Trade names	50		—			100		—
	Non-compete agreements	4		—			8		—
		12,392		8,205			24,730		16,182
	Property and equipment impairments	2		—			2		(2		)
	Software impairments	65		—			65		—
	Depreciation and amortization expense	$	12,459	$	8,205		$	24,797	$	16,180
	Amount included in interest expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Debt related costs amortization	$	255	$	395		$	544	$	783
	Amount included in other income (expense), net
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Net income (loss) resulting from foreign exchange transactions	$	37	$	(22	)	$	22	$	(62	)

LongTerm_Debt_and_Revolving_Cr

Long-Term Debt and Revolving Credit Facility (Notes)	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt And Revolving Credit Facility	'
	Long-Term Debt and Revolving Credit Facility
	A schedule of long-term debt at June 30, 2014 and December 31, 2013 is as follows:
		June 30,		December 31,
		2014		2013
	3.125-3.625% Credit Facility - due 2016	$	11,667	$	23,333
	3.125-3.625% Revolving Credit Facility - due 2016	55,000		75,000
	At June 30, 2014, future payments under long-term debt obligations over each of the next five years and thereafter were as follows:
		Credit Facility
	2014	$	11,667
	2015	23,333
	2016	55,000
	Minimum future payments of principal	90,000
	Less: current portion	23,333
	Long-term portion	$	66,667
	2013 Financing
	On February 11, 2013 we entered into Amendment No. 1 to the 2011 Credit Agreement (as further amended by Amendment No. 2 to our 2011 Credit Facility, the "2013 Credit Facility"). The 2013 Credit Facility consists of a $70,000 senior secured term loan and a $75,000 revolving credit facility. The co-borrowers under the 2013 Credit Facility are our wholly owned subsidiary, Vonage America Inc., and us. Obligations under the 2013 Credit Facility are guaranteed, fully and unconditionally, by our other United States subsidiaries and are secured by substantially all of the assets of each borrower and each of the guarantors. On July 26, 2013 we entered into Amendment No. 2 to our 2011 Credit Agreement, which amends our financial covenant related to our consolidated fixed charge coverage ratio by increasing the amount of restricted payments excluded from such calculation from $50,000 to $80,000.
	Use of Proceeds
	The net proceeds received of $27,500 from the senior secured term loan and the undrawn revolving credit facility under the 2013 Credit Facility will be used for general corporate purposes. We also incurred $2,009 of fees in connection with the 2013 Credit Facility, which is amortized, along with the unamortized fees of $670 in connection with the 2011 Credit Facility, to interest expense over the life of the debt using the effective interest method. We used $75,000 from the 2013 revolving credit facility in connection with the acquisition of Vocalocity on November 15, 2013.
	2013 Credit Facility Terms
	The following description summarizes the material terms of the 2013 Credit Facility:
	The loans under the 2013 Credit Facility mature in February 2016. Principal amounts under the 2013 Credit Facility are repayable in quarterly installments of $5,833 per quarter for the senior secured term loan. The unused portion of our revolving credit facility incurs a 0.45% commitment fee.
	Outstanding amounts under the 2013 Credit Facility, at our option, will bear interest at:
	•	LIBOR (applicable to one-, two-, three- or six-month periods) plus an applicable margin equal to 3.125% if our consolidated leverage ratio is less than 0.75 to 1.00, 3.375% if our consolidated leverage ratio is greater than or equal to 0.75 to 1.00 and less than 1.50 to 1.00, and 3.625% if our consolidated leverage ratio is greater than or equal to 1.50 to 1.00, payable on the last day of each relevant interest period or, if the interest period is longer than 3 months, each day that is three months after the first day of the interest period, or
	•	the base rate determined by reference to the highest of (a) the federal funds effective rate from time to time plus 0.50%, (b) the prime rate of JPMorgan Chase Bank, N.A., and (c) the LIBOR rate applicable to one month interest periods plus 1.00%, plus an applicable margin equal to 2.125% if our consolidated leverage ratio is less than 0.75 to 1.00, 2.275% if our consolidated leverage ratio is greater than or equal to 0.75 to 1.00 and less than 1.50 to 1.00, and 2.625% if our consolidated leverage ratio is greater than or equal to 1.50 to 1.00, payable on the last business day of each March, June, September, and December and the maturity date of the 2013 Credit Facility.
	The 2013 Credit Facility provides greater flexibility to us in funding acquisitions and restricted payments, such as stock buybacks, than the 2011 Credit Facility.
	We may prepay the 2013 Credit Facility at our option at any time without premium or penalty. The 2013 Credit Facility is subject to mandatory prepayments in amounts equal to:
	•	100% of the net cash proceeds from any non-ordinary course sale or other disposition of our property and assets for consideration in excess of a certain amount subject to customary reinvestment provisions and certain other exceptions and
	•	100% of the net cash proceeds received in connection with other non-ordinary course transactions, including insurance proceeds not otherwise applied to the relevant insurance loss.
	Subject to certain restrictions and exceptions, the 2013 Credit Facility permits us to obtain one or more incremental term loans and/or revolving credit facilities in an aggregate principal amount of up to $60,000 plus an amount equal to repayments of the senior secured term loan upon providing documentation reasonably satisfactory to the administrative agent, without the consent of the existing lenders under the 2013 Credit Facility. The 2013 Credit Facility includes customary representations and warranties and affirmative covenants of the borrowers. In addition, the 2013 Credit Facility contains customary negative covenants, including, among other things, restrictions on the ability of us and our subsidiaries to consolidate or merge, create liens, incur additional indebtedness, dispose of assets, consummate acquisitions, make investments, and pay dividends and other distributions. We must also comply with the following financial covenants:
	•	a consolidated leverage ratio of no greater than 2.00 to 1.00;
	•	a consolidated fixed coverage charge ratio of no less than 1.75 to 1.00 subject to adjustment to exclude up to $80,000 in specified restricted payments;
	•	minimum cash of $25,000 including the unused portion of the revolving credit facility or $35,000 in the event of certain specified corporate actions; and
	•	maximum capital expenditures not to exceed $55,000 during any fiscal year, provided that the unused amount of any permitted capital expenditures in any fiscal year may be carried forward to the next following fiscal year; in addition, annual excess cash flow up to $8,000 increases permitted capital expenditures.
	As of June 30, 2014, we were in compliance with all covenants, including financial covenants, for the 2013 Credit Facility.
	The 2013 Credit Facility contains customary events of default that may permit acceleration of the debt. During the continuance of a payment default, interest will accrue at a default interest rate of 2% above the interest rate which would otherwise be applicable, in the case of loans, and at a rate equal to the rate applicable to base rate loans plus 2%, in the case of all other amounts.

Common_Stock_Notes

Common Stock (Notes)	6 Months Ended
	Jun. 30, 2014
Stockholders' Equity Note [Abstract]	'
Common Stock	'
	Common Stock
	Net Operating Loss Rights Agreement
	On June 7, 2012, we entered into a Tax Benefits Preservation Plan ("Preservation Plan") designed to preserve stockholder value and tax assets. Our ability to use our tax attributes to offset tax on U.S. taxable income would be substantially limited if there were an "ownership change" as defined under Section 382 of the U.S. Internal Revenue Code. In general, an ownership change would occur if one or more "5-percent shareholders," as defined under Section 382, collectively increase their ownership in us by more than 50 percent over a rolling three-year period.
	In connection with the adoption of the Preservation Plan, our board of directors declared a dividend of one preferred share purchase right for each outstanding share of the Company’s common stock. The preferred share purchase rights were distributed to stockholders of record as of June 18, 2012, as well as to holders of the Company's common stock issued after that date, but will only be activated if certain triggering events under the Preservation Plan occur.
	Under the Preservation Plan, preferred share purchase rights will work to impose significant dilution upon any person or group which acquires beneficial ownership of 4.9% or more of the outstanding common stock, without the approval of our board of directors, from and after June 7, 2012. Stockholders that own 4.9% or more of the outstanding common stock as of the opening of business on June 7, 2012, will not trigger the preferred share purchase rights so long as they do not (i) acquire additional shares of common stock or (ii) fall under 4.9% ownership of common stock and then re-acquire shares that in the aggregate equal 4.9% or more of the common stock.
	The Preservation Plan was set to expire no later than the close of business June 7, 2013, unless extended by our board of directors. On April 4, 2013, after consultation with our advisors, our board of directors determined to extend the Preservation Plan through June 7, 2015, subject to ratification of the extension by stockholders at the Vonage 2013 annual meeting of stockholders. On June 6, 2013, at the Vonage 2013 annual meeting of stockholders, stockholders ratified the extension of the Preservation Plan through June 7, 2015.
	Common Stock Repurchases
	On July 25, 2012, our board of directors authorized a program to repurchase up to $50,000 of Vonage common stock (the "$50,000 repurchase program") through December 31, 2013. The specific timing and amount of repurchases would vary based on available capital resources and other financial and operational performance, market conditions, securities law limitations, and other factors. The repurchases would be made using our cash resources.
	We repurchased the following shares of common stock with cash resources under the $50,000 repurchase program during the three and six months ended June 30, 2013:
		Three Months Ended				Six Months Ended
		June 30,				June 30,
			2013				2013
	Shares of common stock repurchased		—				2,189
	Value of common stock repurchased		$	—			$	5,374
	On February 7, 2013, our board of directors discontinued the remainder of our existing $50,000 repurchase program effective at the close of business on February 12, 2013 with $16,682 of availability remaining, and authorized a new program to repurchase up to $100,000 of Vonage common stock (the "$100,000 repurchase program") by December 31, 2014. The specific timing and amount of repurchases will vary based on available capital resources and other financial and operational performance, market conditions, securities law limitations, and other factors. The repurchases will be made using our cash resources. The $100,000 repurchase program may be suspended or discontinued at any time without prior notice.
	We repurchased the following shares of common stock with cash resources under the $100,000 repurchase program during the three and six months ended June 30, 2014 and 2013:
		Three Months Ended							Six Months Ended
		June 30,							June 30,
		2014 (1)			2013 (2)				2014 (1)		2013 (2)
	Shares of common stock repurchased	3,523			4,756				5,970		8,795
	Value of common stock repurchased	$	13,244		$	13,451			$	23,287	$	24,458
	(1) including 147 shares, or $556, of common stock repurchases settled in July 2014; excluding commission of $1.
	(2) including 220 shares, or $625, of common stock repurchases settled in July 2013; excluding commission of $4.
	As of June 30, 2014, approximately $26,060 remained of our $100,000 repurchase program. The repurchase program expires on December 31, 2014 but may be suspended or discontinued at any time without notice.
	In any period under either repurchase program, cash used in financing activities related to common stock repurchases may differ from the comparable change in stockholders' equity, reflecting timing differences between the recognition of share repurchase transactions and their settlement for cash.
	Stock Option Cancellation
	As part of our strategy to build shareholder value and to facilitate our goal of reducing the number of shares of common stock outstanding, on February 19, 2013, we entered into an agreement with our Chief Executive Officer to cancel a total of 4,500 of his vested stock options for $5,463. The payment reflects a discount, in favor of the Company, from the closing price of the common stock on the New York Stock Exchange on February 19, 2013.

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Litigation
	IP Matters
	Bear Creek Technologies, Inc. On February 22, 2011, Bear Creek Technologies, Inc. (“Bear Creek”) filed a lawsuit against Vonage Holdings Corp., Vonage America, Inc., Vonage Marketing LLC, and Aptela Inc. (a subsidiary of Vocalocity, Inc., a wholly-owned subsidiary of the Company which was acquired on November 15, 2013 pursuant to an Agreement and Plan of Merger dated October 9, 2013) in the United States District Court for the Eastern District of Virginia (Norfolk Division) alleging that Vonage’s and Aptela’s products and services are covered by United States Patent No. 7,889,722, entitled “System for Interconnecting Standard Telephony Communications Equipment to Internet Protocol Networks” (the “722 Patent”). The suit also named numerous other defendants, including Verizon Communications, Inc., Comcast Corporation, Time-Warner Cable, Inc., AT&T, Inc., and T-Mobile USA Inc. On August 17, 2011, the Court dismissed Bear Creek’s case against the Vonage entities and Aptela, as well as all the other defendants, except for one defendant. Later, on August 17, 2011, Bear Creek re-filed its complaint concerning the ‘722 Patent in the United States District Court for the District of Delaware against the same Vonage entities; and also re-filed a separate complaint concerning the ‘722 Patent in the United States District Court for the Eastern District of Virginia against Aptela. In each complaint, Bear Creek alleges that Vonage and Aptela, respectively, are infringing one or more claims of the ‘722 Patent. In addition, Bear Creek alleges that each party is contributing to and inducing infringement of one or more claims of the ‘722 Patent. On January 25, 2012, Bear Creek filed a motion with the United States Judicial Panel on Multidistrict Litigation seeking to transfer and consolidate its litigations against Vonage and Aptela with twelve other separate actions Bear Creek filed in the U.S. District Courts for Delaware and the Eastern District of Virginia. On May 2, 2012, the Multidistrict Litigation Panel granted Bear Creek’s motion and ordered the coordination or consolidation for pretrial proceedings of all fourteen actions in the U.S. District Court for the District of Delaware. On October 11, 2012, Vonage filed an answer to Bear Creek’s complaint, including counterclaims of non-infringement and invalidity of the ‘722 patent. Aptela, which filed a motion to dismiss Bear Creek’s complaint on September 27, 2011, has not yet answered, as its motion remains pending and awaiting disposition by the court. On November 5, 2012, Bear Creek filed an answer to Vonage’s counterclaims. On March 1, 2013, several defendants including Vonage moved the Court to stay the case pending resolution of the reexamination of the ‘722 patent requested by Cisco Systems, Inc. (“Cisco”) as described below; the motion was granted on July 17, 2013, and the case is now stayed pending the resolution of the reexamination. On November 8, 2013, the Court granted Bear Creek’s request to terminate and substitute counsel representing it in the litigation.
	A request for reexamination of the ‘722 Patent was filed on September 12, 2012 by Cisco, challenging the validity of the ‘722 Patent. Cisco’s request was granted by the USPTO on November 28, 2012. On March 24, 2014, the Patent Office issued an Action Closing Prosecution, confirming its rejection of all claims of the ‘722 patent on multiple independent grounds. Bear Creek filed comments to the Action Closing Prosecution on April 24, 2014. Cisco filed responsive comments on May 22, 2014.
	OpinionLab, Inc. On July 18, 2012, OpinionLab, Inc. (“OpinionLab”) filed a lawsuit against IPerceptions, Inc. and IPerceptions US, Inc. (collectively, “IPerceptions”) in the United States District Court for the Northern District of Illinois (Eastern Division) alleging claims of patent infringement, breach of contract, misappropriation of trade secrets, and tortious interference with business expectancy. On August 16, 2012, OpinionLab filed an amended complaint, adding Vonage Marketing LLC and Vonage Holdings Corp. as defendants, and alleging that Vonage’s products and services are covered by United States Patent Nos. 6,421,724, 6,606,581, 6,928,392, 7,085,820, 7,370,285, 8,024,668, and 8,041,805. OpinionLab alleged direct, indirect and willful infringement by Vonage. IPerceptions, the supplier to Vonage of the accused product in this lawsuit, has agreed to fully defend and indemnify Vonage in this lawsuit. On September 11, 2012, IPerceptions and Vonage each moved to dismiss OpinionLab’s indirect and willful patent infringement claims. The motions were denied on November 8, 2012. Vonage answered the complaint on December 7, 2012. On July 11, 2013, the Court issued an order setting the case schedule. On September 6, 2013, OpinionLab filed a second amended complaint, which defendants answered on September 23, 2013. On October 14, 2013, OpinionLab made an unopposed motion to consolidate the case for pre-trial purposes with Case No. 13-CV-1574, OpinionLab, Inc. v. Qualtrics Labs, Inc., currently pending in the United States District Court for the Northern District of Illinois. The motion was granted October 17, 2013. On February 14, 2014, defendants Vonage and iPerceptions moved to stay the case pending inter partes reviews requested by Qualtrics as to the ‘724, ‘581, ’820, ‘285, ‘668 and ‘805 patents.
	RPost Holdings, Inc. On August 24, 2012, RPost Holdings, Inc., RPost Communications Limited, and RMail Limited (collectively, “RPost”) filed a lawsuit against StrongMail Systems, Inc. (“StrongMail”) in the United States District Court for the Eastern District of Texas (Marshall Division) alleging that StrongMail’s products and services, including its electronic mail marketing services, are covered by United States Patent Nos. 8,224,913, 8,209,389, 8,161,104, 7,966,372, and 6,182,219. On January 16, 2013, StrongMail moved the Court to transfer the venue of the lawsuit to the Northern District of California. That motion was denied by the Court on August 19, 2013. On February 11, 2013, RPost filed an amended complaint, adding 27 new defendants, including Vonage America Inc. RPost’s amended complaint alleges willful infringement of the RPost patents by Vonage and each of the other new defendants because they are customers of StrongMail. StrongMail has agreed to fully defend and indemnify Vonage in this lawsuit. Vonage answered the complaint on May 7, 2013. On January 30, 2014, RPost informed the Court that it is ready for a scheduling conference; the Court has not yet scheduled a conference.
	Straight Path IP Group Inc. On November 4, 2013, Straight Path IP Group Inc. (“Straight Path”), a subsidiary of Straight Path Communications Inc., filed a lawsuit against Vonage Holdings Corp., Vonage America, Inc., and Vonage Marketing LLC in the U.S. District Court for the Eastern District of Virginia (Norfolk Division) alleging that Vonage’s products and services are covered by United States Patent Nos. 6,009,469, 6,131,121, 6,513,066, and 6,701,365. Straight Path alleged direct and indirect infringement by Vonage. On December 20, 2013, Vonage moved to transfer the case to the District of New Jersey and that motion was granted by the court on January 17, 2014. On December 30, 2013, Vonage answered the complaint and filed a motion to dismiss Straight Path’s claims for induced and contributory infringement. In response, Straight Path amended its complaint on January 7, 2014. On February 7, 2014, Vonage answered the amended complaint and moved to dismiss Straight Path's claims for indirect infringement. On March 26, 2014, the Court granted Vonage’s motion to dismiss in its entirety, dismissing Straight Path’s induced and contributory infringement claims without prejudice. Straight Path filed a second amended complaint on April 23, 2014. Vonage answered the second amended complaint on May 27, 2014 and again moved to dismiss Straight Path’s amended claims for indirect infringement. On July 7, 2014, the Court granted Vonage’s motion to dismiss in its entirety, this time dismissing Straight Path’s induced and contributory infringement claims with prejudice.
	Previously, on August 2, 2013, Straight Path filed a lawsuit against Vocalocity, Inc. in the U.S. District Court for the Eastern District of Virginia (Richmond Division) alleging that Vocalocity’s products and services are covered by the ‘066 and ‘365 patents. On September 11, 2013, the lawsuit was ordered consolidated with two other lawsuits by Straight Path filed in early August 2013 against Bandwidth.com, Inc. and Telesphere Networks Ltd., relating to the same patents. Pursuant to a settlement agreement entered between Straight Path and Vocalocity, on June 19, 2014, the parties filed a joint motion to dismiss with prejudice all claims and counterclaims asserted in the case. The Court granted the joint motion on July 2, 2014, dismissing the case in its entirety. The costs associated with the litigation, including the settlement, are fully-indemnified under the terms of the acquisition of Vocalocity.
	AIP Acquisition LLC. On January 3, 2014, AIP Acquisition LLC (“AIP”), filed a lawsuit against Vonage Holdings Corp., Vonage America, Inc., and Vonage Marketing LLC in the U.S. District Court for the District of Delaware (Norfolk Division) alleging that Vonage’s products and services are covered by United States Patent No. 7,269,247. Vonage filed an answer and counterclaims on February 25, 2014. AIP filed an amended complaint on March 18, 2014, which Vonage answered on April 4, 2014. On April 8, 2014, the Court ordered a stay of the case pending final resolution of non-party Level 3’s inter partes review request of United States Patent No. 7,724,879, which is a continuation of the ‘247 patent.
	Spansion. On April 28, 2014, Spansion LLC (“Spansion”), filed a lawsuit against Vonage Holdings Corp., Vonage America, Inc., Vonage Marketing LLC, and 20 other defendants in the U.S. District Court for the Northern District of California alleging that Macronix’s flash memory chips and products containing those chips, including Vonage analog telephone adapter products, each are covered by one or more Spansion patents. On April 29, 2014, Spansion filed a complaint at the International Trade Commission containing substantially similar allegations, requesting that the ITC institute an investigation pursuant to Section 337 of the Tariff Act of 1930 against the respondents, including Vonage. Spansion’s complaints allege that Vonage’s telephone adapters are covered by United States Patent No. 6,246,611. Macronix has agreed to fully defend and indemnify Vonage in the district court and ITC proceedings. On June 25, 2014, the Northern District granted the parties’ joint motion to stay the district court proceedings pending the resolution of the ITC case. On June 30, 2014, Vonage responded to the ITC complaint.
	Commercial Litigation
	Merkin & Smith, et als.  On September 27, 2013, Arthur Merkin and James Smith filed a putative class action lawsuit against Vonage America, Inc. in the Superior Court of the State of California, County of Los Angeles, alleging that Vonage violated California’s Unfair Competition Law by charging its customers fictitious 911 taxes and fees. On October 30, 2013, Vonage filed a notice removing the case to the United States District Court for the Central District of California. On October 30, 2013 the case was assigned to a United States District Judge and a Magistrate Judge. On November 26, 2013, Vonage filed its Answer to the Complaint.  On December 4, 2013, Vonage filed a Motion to Compel Arbitration. On February 4, 2014, the Court denied Vonage’s Motion to Compel Arbitration. On March 5, 2014, Vonage filed an appeal with the United States Court of Appeals for the Ninth Circuit of the decision denying Vonage’s Motion to Compel Arbitration.  On March 6, 2014, Vonage moved to stay the district court proceedings pending its appeal; the Court granted Vonage’s stay motion on March 26, 2014.  Vonage’s appellate brief is due on September 24, 2014.
	From time to time, in addition to those identified above, we are subject to legal proceedings, claims, investigations, and proceedings in the ordinary course of business, including claims of alleged infringement of third-party patents and other intellectual property rights, commercial, employment, and other matters. From time to time we receive letters or other communications from third parties inviting us to obtain patent licenses that might be relevant to our business or alleging that our services infringe upon third party patents or other intellectual property. In accordance with generally accepted accounting principles, we make a provision for a liability when it is both probable that a liability has been incurred and the amount of the loss or range of loss can be reasonably estimated. These provisions, if any, are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Litigation is inherently unpredictable. We believe that we have valid defenses with respect to the legal matters pending against us and are vigorously defending these matters. Given the uncertainty surrounding litigation and our inability to assess the likelihood of a favorable or unfavorable outcome in the above noted matters and our inability to reasonably estimate the amount of loss or range of loss, it is possible that the resolution of one or more of these matters could have a material adverse effect on our consolidated financial position, cash flows or results of operations.
	Regulation
	Telephony services are subject to a broad spectrum of state and federal regulations. Because of the uncertainty over whether Voice over Internet Protocol (“VoIP”) should be treated as a telecommunications or information service, we have been involved in a substantial amount of state and federal regulatory activity. Implementation and interpretation of the existing laws and regulations is ongoing and is subject to litigation by various federal and state agencies and courts. Due to the uncertainty over the regulatory classification of VoIP service, there can be no assurance that we will not be subject to new regulations or existing regulations under new interpretations, and that such change would not introduce material additional costs to our business.
	Federal - Net Neutrality
	Clear and enforceable net neutrality rules would make it more difficult for broadband Internet service providers to block or discriminate against Vonage service. Also explicitly applying net neutrality rules to wireless broadband Internet service could create greater opportunities for VoIP applications that run on wireless broadband Internet service. In October 2009, the FCC proposed the adoption of enforceable net neutrality rules for both wired and wireless broadband Internet service providers. The proposed rules would prohibit wired and wireless broadband Internet service providers from blocking or hindering lawful content, applications, or services and from unreasonably discriminating when transmitting lawful network traffic. In addition, broadband Internet service providers would have to publicly disclose certain information about their network management practices. In December 2010, the FCC adopted enforceable net neutrality rules based on its October 2009 proposal. All of the proposed rules in the October 2009 proposal applied to wired broadband Internet providers. The FCC applied some but not all of the proposed rules to wireless broadband service. Wireless broadband Internet services providers are prohibited from blocking or hindering voice or video applications that compete with the broadband Internet service provider's voice or video services. Wireless providers are also subject to transparency requirements, but they are not subject to the prohibition on unreasonable discrimination that applies to wired broadband Internet services providers. A number of parties filed appeals of the rules. On January 14, 2014, the D.C. Circuit vacated the anti-blocking and the unreasonable discrimination provisions of the rules. The D.C. Circuit decision did not foreclose the FCC from adopting anti-blocking or non-discrimination rules. On February 19, 2014, FCC Chairman Tom Wheeler announced that the FCC would not appeal the D.C. Circuit decision, electing to pursue restoration of the vacated provisions using the authority that the FCC has over broadband services, as recognized by the D.C. Circuit. The FCC adopted a new Notice of Proposed Rulemaking (“NPRM”) on net neutrality rules at its May 15, 2014 meeting. Opening comments on the NPRM were due July 18, 2014 and reply comments are due September 10, 2014.
	Federal - Intercarrier Compensation
	On February 9, 2011, the FCC released a Notice of Proposed Rulemaking on reforming universal service and the intercarrier compensation (“ICC”) system that governs payments between telecommunications carriers primarily for terminating traffic. In particular, the FCC indicated that it has never determined the ICC obligations for VoIP service and sought comment on a number of proposals for how VoIP should be treated in the ICC system. The FCC's adoption of an ICC proposal will impact Vonage's costs for telecommunications services. On October 27, 2011, the FCC adopted an order reforming universal service and ICC. The FCC order provides that VoIP originated calls will be subject to interstate access charges for long distance calls and reciprocal compensation for local calls that terminate to the public switched telephone network (“PSTN”). It also subjected PSTN originated traffic directed to VoIP subscribers to similar ICC obligations. The termination charges for all traffic, including VoIP originated traffic, will transition over several years to a bill and keep arrangement (i.e., no termination charges). Numerous parties filed appeals of the FCC order in multiple federal circuit courts of appeal. The 10th Circuit Court of Appeals was selected by lottery to decide the appeals. On May 23, 2014, the 10th Circuit upheld the FCC’s order.
	Federal - Universal Service Contribution Reform
	On April 30, 2012, the FCC released a Further Notice of Proposed Rulemaking on reforming federal universal service fund (“USF”) contributions. Currently USF contributions are assessed on the interstate and international revenue of traditional telephone carriers and interconnected VoIP providers like Vonage. The level of USF assessments on these providers has been going up over time because of decreases in the revenue subject to assessment due to substitution of non-assessable services such as non-interconnected VoIP services. If the FCC does reform USF contributions, it is likely that Vonage's contribution burden will decline.
	Federal - Rural Call Completion Issues
	On February 7, 2013, the FCC released a Notice of Proposed Rulemaking on rural call completion issues. The Notice of Proposed Rulemaking (NPRM) proposed new detailed reporting requirements to gauge rural call completion performance. Rural carriers have argued that VoIP provider call completion performance to rural areas is generally poor. On October 28, 2013, the FCC adopted an order on rural call completion that imposes new reporting obligations and restricts certain call signaling practices. The call signaling rules went into effect on January 31, 2014.  We filed for extensions that the FCC granted on January 30, 2014 and February 28, 2014 and as of April 17, 2014, we are compliant with the new FCC call signaling rules.  We could be subject to an FCC enforcement action in the future in the event the FCC took the position that our rural call completion performance is inadequate or we were not compliant with the FCC’s order.
	Federal - Numbering Rights
	On April 18, 2013, the FCC issued a Notice of Proposed Rulemaking (NPRM) that proposing to modify FCC rules to allow VoIP providers to directly access telephone numbers. In addition, the FCC granted a waiver from its existing rules to allow Vonage to conduct a trial of direct access to telephone numbers. The trial would allow the FCC to obtain real-world data on direct access to telephone numbers by VoIP providers to inform consideration of the NPRM. Direct access to telephone numbers would facilitate IP to IP interconnection, which may allow VoIP providers to provide higher quality, lower cost services, promote the deployment of innovative new voice services, and experience reductions in the cost of telephony services. Vonage successfully completed the trial in certain markets and filed the required reports on the trial with the FCC. On January 31, 2014, the FCC Wireline Competition Bureau issued a positive report on the trial, concluding that Vonage's successful trial confirmed the technical feasibility of interconnected VoIP providers obtaining telephone numbers directly from the numbering administrators. Given the positive report, the FCC may adopt its proposed rule to allow VoIP providers to directly access telephone numbers.
	Pakistan Termination Rate Increase
	On October 1, 2012, Pakistani carriers formed the International Clearing House (ICH). This cartel subsequently took action to increase the cost to terminate international calls to Pakistan by approximately 500 percent. As a result of the implementation of higher termination costs, Vonage was forced to remove Pakistan from unlimited calling in its Vonage World plan. Vonage filed a petition at the FCC, shortly after the ICH rates became effective, seeking an order prohibiting U.S. carriers from paying the new higher ICH rates. On March 5, 2013, the FCC issued an order that prohibits U.S. carriers from paying more than the prevailing termination rate prior to the implementation of the ICH rates. In addition to the Vonage challenge in the U.S., a Pakistani carrier challenged the ICH action under Pakistani competition law. After the trial court found that the ICH violated Pakistani competition law, the Supreme Court of Pakistan overturned the trial court decision and remanded the case to the Competition Commission of Pakistan (CCP). On April 30, 2013, the CCP issued an order that holds that the ICH violates Pakistani competition law. On May 9, 2013, the Sindh High Court temporarily suspended the CCP order while the court considers constitutional challenges to the order made by several Pakistani carriers. On June 17, 2014, the Pakistan Ministry of Information Technology withdrew its policy directing formation of the ICH as of August 1, 2014. Pakistani carriers challenged the Ministry’s order at the Sindh High Court and obtained a temporary injunction against the Ministry’s order. Despite favorable action by both U.S. and Pakistani authorities, it is currently unclear whether, or with what timing, international termination rates in Pakistan will return to a more competitive level.
	State Telecommunications Regulation
	In general, the focus of interconnected VoIP telecommunications regulation is at the federal level. On November 12, 2004, the FCC issued a declaratory ruling providing that our service is subject to federal regulation and preempted the Minnesota Public Utilities Commission from imposing certain of its regulations on us. The FCC's decision was based on its conclusion that our service is interstate in nature and cannot be separated into interstate and intrastate components. On March 21, 2007, the United States Court of Appeals for the 8th Circuit affirmed the FCC's declaratory ruling preempting state regulation of our service. The 8th Circuit found that it is impossible for us to separate our interstate traffic from our intrastate traffic because of the nomadic nature of the service. As a result, the 8th Circuit held that it was reasonable for the FCC to preempt state regulation of our service. The 8th Circuit was clear, however, that the preemptive effect of the FCC's declaratory ruling may be reexamined if technological advances allow for the separation of interstate and intrastate components of the nomadic VoIP service. Therefore, the preemption of state authority over our service under this ruling generally hinges on the inability to separate the interstate and intrastate components of the service.
	While this ruling does not exempt us from all state oversight of our service, it effectively prevents state telecommunications regulators from imposing certain burdensome and inconsistent market entry requirements and certain other state utility rules and regulations on our service. State regulators continue to probe the limits of federal preemption in their attempts to apply state telecommunications regulation to interconnected VoIP service. On July 16, 2009, the Nebraska Public Service Commission and the Kansas Corporation Commission filed a petition with the FCC seeking a declaratory ruling or, alternatively, adoption of a rule declaring that state authorities may apply universal service funding requirements to nomadic VoIP providers. We participated in the FCC proceedings on the petition. On November 5, 2010, the FCC issued a declaratory ruling that allowed states to assess state USF on nomadic VoIP providers on a going forward basis provided that the states comply with certain conditions to ensure that imposing state USF does not conflict with federal law or policy. We expect that state public utility commissions and state legislators will continue their attempts to apply state telecommunications regulations to nomadic VoIP service.
	Stand-by Letters of Credit
	We had stand-by letters of credit totaling $3,308 and $4,306, as of June 30, 2014 and December 31, 2013, respectively.
	End-User Commitments
	We are obligated to provide telephone services to our registered end-users. The costs related to the potential utilization of minutes sold are expensed as incurred. Our obligation to provide this service is dependent on the proper functioning of systems controlled by third-party service providers. We do not have a contractual service relationship with some of these providers.
	Vendor Commitments
	We have committed to purchase software licenses. We have committed to pay approximately $500 in 2014, $1,000 in 2015 and 2016, and $100 in 2017.
	We have committed to lease office space from a vendor. We have committed to pay this vendor approximately $100 in 2014, $900 in 2015, $1,500 in 2016 through 2019, and $1,100 in 2020.
	State and Municipal Taxes
	In accordance with generally accepted accounting principles, we make a provision for a liability for taxes when it is both probable that a liability has been incurred and the amount of the liability or range of liability can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. For a period of time, we did not collect or remit state or municipal taxes (such as sales, excise, utility, use, and ad valorem taxes), fees or surcharges (“Taxes”) on the charges to our customers for our services, except that we historically complied with the New Jersey sales tax. We have received inquiries or demands from a number of state and municipal taxing and 911 agencies seeking payment of Taxes that are applied to or collected from customers of providers of traditional public switched telephone network services. Although we have consistently maintained that these Taxes do not apply to our service for a variety of reasons depending on the statute or rule that establishes such obligations, we are now collecting and remitting sales taxes in certain of those states including a number of states that have changed their statutes to expressly include VoIP. In addition, many states address how VoIP providers should contribute to support public safety agencies, and in those states we remit fees to the appropriate state agencies. We could also be contacted by state or municipal taxing and 911 agencies regarding Taxes that do explicitly apply to VoIP and these agencies could seek retroactive payment of Taxes. As such, we have a reserve of $5,708 as of June 30, 2014 as our best estimate of the potential tax exposure for any retroactive assessment. We believe the maximum estimated exposure for retroactive assessments is approximately $7,000 as of June 30, 2014.

Redeemable_Noncontrolling_Inte

Redeemable Noncontrolling Interest (Notes)	6 Months Ended
	Jun. 30, 2014
Noncontrolling Interest [Abstract]	'
Redeemable Noncontrolling Interest	'
	Redeemable Noncontrolling Interest
	In the third quarter of 2013, we formed a consolidated foreign subsidiary in Brazil in connection with our previously announced joint venture in Brazil, creating a redeemable noncontrolling interest. The redeemable noncontrolling interest consists of the 30.0% interest in this subsidiary held by our joint venture partner.
	Pursuant to the stockholder agreement governing the joint venture, we have the right to purchase this noncontrolling interest (“call right”) from the joint venture partner and our joint venture partner has the right to sell the noncontrolling interest (“put right”) to us subject to certain triggering events. The amounts at which the call right can be exercised are based on appraised value as prescribed by the stockholder agreement, subject to certain adjustments ranging from 50% to 150%, multiplied by the noncontrolling interest holder’s percentage ownership of the subsidiary that is subject to the triggering event. The amounts at which the put right can be exercised are based on appraised value as prescribed by the stockholder agreement, subject to certain adjustments ranging from 50% to 120%, multiplied by the noncontrolling interest holder’s percentage ownership of the subsidiary that is subject to the triggering event. We adjust the redeemable noncontrolling interest to the redemption values at the end of each reporting period should it become probable that the noncontrolling interest will be redeemable. At that time the changes in the noncontrolling interest will be recognized as an adjustment to retained earnings, or in the absence of retained earnings, as an adjustment to additional paid-in capital.
	On December 3, 2013, we extended a loan of $545 to our consolidated foreign subsidiary in Brazil pursuant to the shareholder agreement to meet the capital call requirement of our joint venture partner. The loan bore interest at a rate equal to 105% of rate of the Sistema Especial de Liquidação e Custódia (SELIC) (“SELIC Rate”).
	In February 2014, pursuant to the shareholder agreement, we notified our joint venture partner that we are exercising our dilution rights as our joint venture partner did not meet a second successive capital call on December 17, 2013. As such, the loan that was provided in December will be converted to equity and we will make the second missed capital call of $503 . The dilution process was completed at the end of March 2014, increasing our ownership interest to 91% .
	We have provided our joint venture partner with an opportunity to repurchase their diluted equity by making the first capital call in 2014, which is expected to be completed in August 2014, in addition to the two previously missed capital calls. Pursuant to the shareholder agreement, the price to be paid by our joint venture partner in order to repurchase their diluted equity is equal to (i) the loan principal amount adjusted from its disbursement date until the date of the repurchase, at a rate equal to 105% of the rate of the SELIC Rate pro rata; plus (ii) $503, adjusted from December 17, 2013 to the date of the repurchase, at a rate equal to 107% of the SELIC Rate pro rata; and (iii) their share of joint venture losses for diluted equity from the dilution date through the repurchase date.

Basis_of_Presentation_and_Sign1

Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of Vonage and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. We also consolidate a majority-owned entity in Brazil where we have the ability to exercise controlling influence. The ownership interest of the noncontrolling party is presented as redeemable noncontrolling interest.
Use of Estimates	'
	Use of Estimates
	Our consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States, which require management to make estimates and assumptions that affect the amounts reported and disclosed in the consolidated financial statements and the accompanying notes. Actual results could differ materially from these estimates.
	On an ongoing basis, we evaluate our estimates, including the following:
	•	the useful lives of property and equipment, software costs, and intangible assets;
	•	assumptions used for the purpose of determining share-based compensation using the Black-Scholes option pricing model and Monte Carlo simulation model (“Models”), and various other assumptions that we believe to be reasonable; the key inputs for these Models include our stock price at valuation date, exercise price, the dividend yield, risk-free interest rate, life in years, and historical volatility of our common stock; and
	•	assumptions used in determining the need for, and amount of, a valuation allowance on net deferred tax assets.
	We base our estimates on historical experience, available market information, appropriate valuation methodologies, and on various other assumptions that we believe to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.
Revenue Recognition	'
	Revenue Recognition
	Operating revenues consist of telephony services revenues and customer equipment (which enables our telephony services) and shipping revenues. The point in time at which revenues are recognized is determined in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 104, Revenue Recognition, and Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605, Revenue Recognition.
	At the time a customer signs up for our telephony services, there are the following deliverables:
	•	Providing equipment, if any, to the customer that enables our telephony services; and
	•	Providing telephony services.
	The equipment is generally provided free of charge to our customers and in most instances there are no fees collected at sign-up. We record the fees collected for shipping the equipment to the customer, if any, as shipping and handling revenue at the time of shipment.
	Telephony Services Revenue
	Substantially all of our revenues are telephony services revenues, which are derived primarily from monthly subscription fees that customers are charged under our service plans. We also derive telephony services revenues from per minute fees for international calls if not covered under a plan, including calls made via applications for mobile devices and other stand-alone products, and for any calling minutes in excess of a customer’s monthly plan limits. Monthly subscription fees are automatically charged to customers’ credit cards, debit cards or electronic check payments ("ECP"), in advance and are recognized over the following month when services are provided. Revenues generated from international calls and from customers exceeding allocated call minutes under limited minute plans are recognized as services are provided, that is, as minutes are used, and are billed to a customer's credit cards, debit cards or ECP in arrears. As a result of multiple billing cycles each month, we estimate the amount of revenues earned from international calls and from customers exceeding allocated call minutes under limited minute plans but not billed from the end of each billing cycle to the end of each reporting period and record these amounts as accounts receivable. These estimates are based primarily upon historical minutes and have been consistent with our actual results.
	We also provide rebates to customers who purchase their customer equipment from retailers and satisfy minimum service period requirements. These rebates in excess of activation fees are recorded as a reduction of revenues over the service period based upon the estimated number of customers that will ultimately earn and claim the rebates.
	In the United States, we charge regulatory, compliance, E-911, and intellectual property-related fees on a monthly basis to defray costs, and to cover taxes that we are charged by the suppliers of telecommunications services. In addition, we charge customers Federal Universal Service Fund (“USF”) fees. We recognize revenue on a gross basis for USF and related fees. We record these fees as revenue when billed. All other taxes are recorded on a net basis.
	Customer Equipment and Shipping Revenue
	Customer equipment and shipping revenues consist of revenues from sales of customer equipment to wholesalers or directly to customers for replacement devices, or for upgrading their device at the time of customer sign-up for which we charge an additional fee. In addition, customer equipment and shipping revenues include revenues from the sale of VoIP telephones in order to access our small and medium business services on a net basis rather than a gross basis. Customer equipment and shipping revenues also include the fees that customers are charged for shipping their customer equipment to them. Customer equipment and shipping revenues include sales to our retailers, who subsequently resell this customer equipment to customers. Revenues are reduced for payments to retailers and rebates to customers, who purchased their customer equipment through these retailers, to the extent of customer equipment and shipping revenues.
Direct Cost of Telephony Services	'
	Direct Cost of Telephony Services
	Direct cost of telephony services consists primarily of direct costs that we pay to third parties in order to provide telephony services. These costs include access and interconnection charges that we pay to other telephone companies to terminate domestic and international phone calls on the public switched telephone network. In addition, these costs include the cost to lease phone numbers, to co-locate in other telephone companies’ facilities, to provide enhanced emergency dialing capabilities to transmit 911 calls, and to provide local number portability. These costs also include taxes that we pay on telecommunications services from our suppliers or are imposed by government agencies such as Federal USF and royalties for use of third parties’ intellectual property. These costs do not include indirect costs such as depreciation and amortization, payroll, and facilities costs. Our presentation of direct cost of telephony services may not be comparable to other similar companies.
Direct Cost of Goods Sold	'
	Direct Cost of Goods Sold
	Direct cost of goods sold consists primarily of costs that we incur when a customer signs up for our service. These costs include the cost of customer equipment for customers who subscribe through the direct sales channel in excess of activation fees. In addition, these costs include the amortization of deferred customer equipment, the cost of shipping and handling for customer equipment, the installation manual that accompanies the customer equipment, and the cost of certain promotions.
Development Expenses	'
	Development Expenses
	Costs for research, including predevelopment efforts prior to establishing technological feasibility of software expected to be marketed, are expensed as incurred. Development costs are capitalized when technological feasibility has been established and anticipated future revenues support the recoverability of the capitalized amounts. Capitalization stops when the product is available for general release to customers. Due to the short time period between achieving technological feasibility and product release and the insignificant amount of costs incurred during such periods, we have not capitalized any software development, and have expensed these costs as incurred. These costs are included in selling, general and administrative expense.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	We maintain cash with several investment grade financial institutions. Highly liquid investments, which are readily convertible into cash, with original maturities of three months or less, are recorded as cash equivalents.
Certain Risks and Concentrations	'
	Certain Risks and Concentrations
	Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash equivalents and accounts receivable. They are subject to fluctuations in both market value and yield based upon changes in market conditions, including interest rates, liquidity, general economic conditions, and conditions specific to the issuers. Accounts receivable are typically unsecured and are derived from revenues earned from customers primarily located in the United States. A portion of our accounts receivable represents the timing difference between when a customer’s credit card is billed and the subsequent settlement of that transaction with our credit card processors. This timing difference is generally three days for substantially all of our credit card receivables. We have never experienced any accounts receivable write-offs due to this timing difference. In addition, we collect subscription fees in advance, minimizing our accounts receivable and bad debt exposure. If a customer’s credit card, debit card or ECP is declined, we generally suspend international calling capabilities as well as their ability to incur domestic usage charges in excess of their plan minutes. If the customer’s credit card, debit card or ECP could not be successfully processed during three billing cycles (i.e., the current and two subsequent monthly billing cycles), we terminate the account. In addition, we automatically charge any per minute fees to our customers’ credit card, debit card or ECP monthly in arrears. To further mitigate our bad debt exposure, a customer’s credit card, debit card or ECP will be charged in advance of their monthly billing if their international calling or overage charges exceed a certain dollar threshold.
Inventory	'
	Inventory
	Inventory consists of the cost of customer equipment and is stated at the lower of cost or market, with cost determined using the average cost method. We provide an inventory allowance for customer equipment that has been returned by customers but may not be able to be reissued to new customers or returned to the manufacturer for credit.
Property and Equipment	'
	Property and Equipment
	Property and equipment includes acquired assets and those accounted for under capital leases and consist principally of network equipment and computer hardware, furniture, software, and leasehold improvements. In addition, the lease of our corporate headquarters has been accounted for as a capital lease and is included in property and equipment. Network equipment and computer hardware and furniture are stated at cost with depreciation provided using the straight-line method over the estimated useful lives of the related assets, which range from three to five years. Leasehold improvements are amortized over their estimated useful life of the related assets or the life of the lease, whichever is shorter. The cost of renewals and substantial improvements is capitalized while the cost of maintenance and repairs is charged to operating expenses as incurred.
	Our network equipment and computer hardware, which consists of routers, gateways, and servers that enable our telephony services, is subject to technological risks and rapid market changes due to new products and services and changing customer demand. These changes may result in future adjustments to the estimated useful lives or the carrying value of these assets, or both.
Software Costs	'
	Software Costs
	We capitalize certain costs, such as purchased software and internally developed software that we use for customer acquisition and customer care automation tools, in accordance with FASB ASC 350-40, “Internal-Use Software”. Computer software is stated at cost less accumulated amortization and the estimated useful life is two to five years.
Intangible Assets	'
	Goodwill and Purchased-Intangible Assets
	Goodwill acquired in acquisition of a business is accounted for based upon the excess fair value of consideration transferred over the fair value of net assets acquired in the business combination. Goodwill is tested for impairment on an annual basis on October 1st and, when specific circumstances dictate, between annual tests. When impaired, the carrying value of goodwill is written down to fair value. The goodwill impairment test involves a two-step process. The first step, identifying a potential impairment, compares the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds its fair value, the second step would need to be conducted; otherwise, no further steps are necessary as no potential impairment exists. The second step, measuring the impairment loss, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. Any excess of the reporting unit goodwill carrying value over the respective implied fair value is recognized as an impairment loss.
	Purchased-intangible assets are accounted for based upon the fair value of assets received. Purchased-intangible assets are amortized on a straight-line or accelerated basis over the periods of benefit, ranging from two to ten years. We perform a review of purchased-intangible assets whenever events or changes in circumstances indicate that the useful life is shorter than we had originally estimated or that the carrying amount of assets may not be recoverable. If such facts and circumstances exist, we assess the recoverability of purchased-intangible assets by comparing the projected undiscounted net cash flows associated with the related asset or group of assets over their remaining lives against their respective carrying amounts. Impairments, if any, are based on the excess of the carrying amount over the fair value of those assets. If the useful life of the asset is shorter than originally estimated, we accelerate the rate of amortization and amortize the remaining carrying value over the new shorter useful life. There was no impairment of purchased-intangible assets identified for the three and six months ended June 30, 2014.
	Intangible Assets
	Intangible assets acquired in the settlement of litigation or by direct purchase are accounted for based upon the fair value of assets received.
	Patents and Patent Licenses
	Patent rights acquired in the settlement of litigation or by direct purchase are accounted for based upon the fair value of assets received.
Long-Lived Assets	'
	Long-Lived Assets
	We evaluate impairment losses on long-lived assets used in operations when events and changes in circumstances indicate that the assets might be impaired. If our review indicates that the carrying value of an asset will not be recoverable, based on a comparison of the carrying value of the asset to the undiscounted future cash flows, the impairment will be measured by comparing the carrying value of the asset to its fair value. Fair value will be determined based on quoted market values, discounted cash flows or appraisals. Impairments are recorded in the statement of operations as part of depreciation expense.
Debt Related Costs	'
	Debt Related Costs
	Costs incurred in raising debt are deferred and amortized as interest expense using the effective interest method over the life of the debt.
Redeemable Noncontrolling Interest	'
	Redeemable Noncontrolling Interest
	We consolidate a majority-owned entity where we have the ability to exercise controlling influence. The ownership interest of the noncontrolling party is presented as noncontrolling interest. If we are required to repurchase the noncontrolling interest at fair value, subject to adjustment, under a put option or other contractual redemption requirement, we will report the noncontrolling interest as redeemable in the Consolidated Balance Sheets between liabilities and equity. We adjust the redeemable noncontrolling interest to the redemption values on each balance sheet date with changes recognized as an adjustment to retained earnings, or in the absence of retained earnings, as an adjustment to additional paid-in capital when it becomes probable the noncontrolling interest will become redeemable.
Derivatives	'
	Derivatives
	We do not hold or issue derivative instruments for trading purposes. However, in accordance with FASB ASC 815, “Derivatives and Hedging” (“FASB ASC 815”), we review our contractual obligations to determine whether there are terms that possess the characteristics of derivative financial instruments that must be accounted for separately from the financial instrument in which they are embedded. We recognize these features as liabilities in our consolidated balance sheet at fair value each period and recognize any change in the fair value in our statement of operations in the period of change. We estimate the fair value of these liabilities using available market information and appropriate valuation methodologies.
Income Taxes	'
	Income Taxes
	We recognize deferred tax assets and liabilities at enacted income tax rates for the temporary differences between the financial reporting bases and the tax bases of our assets and liabilities. Any effects of changes in income tax rates or tax laws are included in the provision for income taxes in the period of enactment. Our net deferred tax assets primarily consist of net operating loss carry forwards (“NOLs”). We are required to record a valuation allowance against our net deferred tax assets if we conclude that it is more likely than not that taxable income generated in the future will be insufficient to utilize the future income tax benefit from our net deferred tax assets (namely, the NOLs) prior to expiration. We periodically review this conclusion, which requires significant management judgment. If we are able to conclude in a future period that a future income tax benefit from our net deferred tax assets has a greater than 50 percent likelihood of being realized, we are required in that period to reduce the related valuation allowance with a corresponding decrease in income tax expense. This would result in a non-cash benefit to our net income in the period of the determination. In the fourth quarter of 2011, we released $325,601 of valuation allowance. In subsequent periods, we would expect to recognize income tax expense equal to our pre-tax income multiplied by our effective income tax rate, an expense that was not recognized prior to the reduction of the valuation allowance. Our effective rate may differ from the federal statutory rate due, in part, to our foreign operations and certain discrete period items. The 2014 estimated annual effective tax rate is expected to approximate 49%, but may fluctuate due to the timing of other discrete period transactions.
	We file income tax returns in the U.S. on a federal basis and in U.S. state and foreign jurisdictions. Our federal tax return remains subject to examination by the Internal Revenue Service from 2010 to present, our New Jersey tax returns remain open from 2008 to present, our Canada tax return remains open from 2009 to present, and other domestic and foreign tax returns remain open for all periods to which those filings relate. We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate resolution.
	We have not had any unrecognized tax benefits. We recognize interest and penalties accrued related to unrecognized tax benefits as components of our income tax provision. We have not had any interest and penalties accrued related to unrecognized tax benefits.
Business Combinations	'
	Business Combinations
	We account for business combinations using the acquisition method of accounting. The acquisition method of accounting requires that the purchase price, including the fair value of contingent consideration, of the acquisition be allocated to the assets acquired and liabilities assumed using the fair values determined by management as of the acquisition date. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of assets acquired and the liabilities assumed. While the Company uses its best estimates and assumptions as part of the purchase price allocation process to accurately value assets acquired and liabilities assumed at the acquisition date, the Company’s estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, the Company records adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill to the extent the Company identifies adjustments to the preliminary purchase price allocation. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the consolidated statements of operations. We will include the results of all acquisitions in our Consolidated Financial Statements from the date of acquisition.
	In connection with the acquisition of Vocalocity, Inc. on November 15, 2013, we recorded preliminary estimates primarily related to income, sales, excise, and ad valorem taxes. As such, the provisional measurements of fair value are subject to change.
	Acquisition related transaction costs, such as banking, legal, accounting and other costs incurred in connection with an acquisition, are expensed as incurred in selling, general and administrative expense.
	Acquisition related integration costs include costs associated with exit or disposal activities, which do not meet the criteria of discontinued operations, including costs for employee, lease, and contract terminations, facility closing or other exit activities. Additionally, these costs include expenses directly related to integrating and reorganizing acquired businesses and include items such as employee retention costs, recruiting costs, certain moving costs, certain duplicative costs during integration and asset impairments. These costs are expensed as incurred in selling, general and administrative expense.
Foreign Currency	'
	Foreign Currency
	Generally, the functional currency of our non-United States subsidiaries is the local currency. The financial statements of these subsidiaries are translated to United States dollars using month-end rates of exchange for assets and liabilities, and average rates of exchange for revenues, costs, and expenses. Translation gains and losses are deferred and recorded in accumulated other comprehensive income as a component of stockholders’ equity.
Share-Based Compensation	'
	Share-Based Compensation
	We account for share-based compensation in accordance with FASB ASC 718, “Compensation-Stock Compensation”. Under the fair value recognition provisions of this pronouncement, share-based compensation cost is measured at the grant date based on the fair value of the award, reduced as appropriate based on estimated forfeitures, and is recognized as expense over the applicable vesting period of the stock award using the accelerated method. The excess tax benefit associated with stock compensation deductions have not been recorded in additional paid-in capital. When evaluating whether an excess tax benefit has been realized, share based compensation deductions are not considered realized until NOLs are no longer sufficient to offset taxable income. Such excess tax benefits will be recorded when realized.
Earnings per Share	'
	Earnings per Share
	Net income per share has been computed according to FASB ASC 260, “Earnings per Share”, which requires a dual presentation of basic and diluted earnings per share (“EPS”). Basic EPS represents net income divided by the weighted average number of common shares outstanding during a reporting period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock, including stock options and restricted stock units under our 2001 Stock Incentive Plan and 2006 Incentive Plan, were exercised or converted into common stock. The dilutive effect of outstanding stock options and restricted stock units is reflected in diluted earnings per share by application of the treasury stock method. In applying the treasury stock method for stock-based compensation arrangements, the assumed proceeds are computed as the sum of the amount the employee must pay upon exercise and the amounts of average unrecognized compensation cost attributed to future services.
Comprehensive Income (Loss)	'
	Comprehensive Income (Loss)
	Comprehensive income (loss) consists of net income and other comprehensive items. Other comprehensive items include foreign currency translation adjustments.
Reclassifications	'
	Reclassifications
	Certain reclassifications have been made to prior years’ financial statements in order to conform to the current year’s presentation. The reclassifications had no impact on net earnings previously reported.

Basis_of_Presentation_and_Sign2

Basis of Presentation and Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Computation for basic and diluted net (loss) income per share	'
	The following table sets forth the computation for basic and diluted net income per share for the three and six months ended June 30, 2014 and 2013:
		Three Months Ended						Six Months Ended
		June 30,						June 30,
		2014			2013			2014		2013
	Numerator
	Numerator for basic earnings per share-net income attributable to Vonage	$	5,518		$	7,447		$	10,106	$	20,494
	Numerator for diluted earnings per share-net income attributable to Vonage	$	5,518		$	7,447		$	10,106	$	20,494
	Denominator
	Basic weighted average common shares outstanding	211,390			212,169			211,790		213,404
	Dilutive effect of stock options and restricted stock units	9,612			7,668			9,520		8,927
	Diluted weighted average common shares outstanding	221,002			219,837			221,310		222,331
	Basic net income per share
	Basic net income per share	$	0.03		$	0.04		$	0.05	$	0.1
	Diluted net income per share
	Diluted net income per share	$	0.02		$	0.03		$	0.05	$	0.09
Securities excluded from calculation of diluted earnings per common share because of anti-dilutive effects	'
	For the three and six months ended June 30, 2014 and 2013, the following were excluded from the calculation of diluted earnings per common share because of their anti-dilutive effects:
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Restricted stock units	5,486		2,171			5,477		2,357
	Stock options	22,447		27,796			22,548		26,349
		27,933		29,967			28,025		28,706

Supplemental_Balance_Sheet_Acc1

Supplemental Balance Sheet Account Information (Tables)	6 Months Ended
	Jun. 30, 2014
Supplemental Balance Sheet Account Information [Abstract]	'
Supplemental balance sheet account information	'
	Prepaid expenses and other current assets
		June 30,			December 31, 2013
		2014
	Nontrade receivables	$	9,039		$	7,402
	Services	9,825			7,084
	Telecommunications	493			479
	Insurance	954			757
	Marketing	1,205			312
	Other prepaids	2,007			858
	Prepaid expenses and other current assets	$	23,523		$	16,892
	Property and equipment, net
		June 30,			December 31, 2013
		2014
	Building (under capital lease)	$	25,709		$	25,709
	Network equipment and computer hardware	75,598			78,312
	Leasehold improvements	44,900			44,141
	Furniture	1,422			812
	Vehicles	92			109
		147,721			149,083
	Less: accumulated depreciation and amortization	(102,891		)	(96,840		)
	Property and equipment, net	$	44,830		$	52,243
	Software, net
		June 30,			December 31, 2013
		2014
	Purchased	$	51,117		$	45,178
	Licensed	909			909
	Internally developed	36,088			36,088
		88,114			82,175
	Less: accumulated amortization	(66,046		)	(61,618		)
	Software, net	$	22,068		$	20,557
	Debt related costs, net
		June 30,			December 31, 2013
		2014
	Senior secured term loan	$	4,706		$	4,706
	Less: accumulated amortization	(3,937		)	(3,393		)
	Debt related costs, net	$	769		$	1,313
	Restricted cash
		June 30,			December 31, 2013
		2014
	Letter of credit-lease deposits	$	3,308		$	4,306
	Cash reserves	103			99
	Restricted cash	$	3,411		$	4,405
	Intangible assets, net
		June 30,			December 31, 2013
		2014
	Customer relationships	$	39,100		$	39,100
	Developed technology	35,200			35,200
	Patents and patent licenses	12,764			18,264
	Trademark	560			560
	Trade names	500			500
	Non-compete agreements	200			200
		88,324			93,824
	Less: accumulated amortization	(20,117		)	(16,974		)
	Intangible assets, net	$	68,207		$	76,850
	Accrued expenses
		June 30,			December 31, 2013
		2014
	Compensation and related taxes and temporary labor	$	15,600		$	20,276
	Marketing	26,071			23,277
	Taxes and fees	16,486			18,207
	Litigation and settlements	339			89
	Telecommunications	8,373			7,942
	Other accruals	4,335			6,063
Customer credits	1,542			1,719
Professional fees	3,120			2,490
Accrued interest	10			12
Inventory	216			769
Credit card fees	314			283
Accrued expenses	$	76,406		$	81,127

Supplemental_Income_Statement_1

Supplemental Income Statement Account Information (Tables)	6 Months Ended
	Jun. 30, 2014
Supplemental Income Statement Account Information [Abstract]	'
Supplemental income statement account information	'
	Amounts included in revenues
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	USF fees	$	18,396	$	17,125		$	37,032	$	35,230
	Disconnect fees	$	906	$	1,066		$	1,679	$	2,306
	Initial activation fees	$	273	$	319		$	587	$	673
	Customer equipment fees	$	174	$	12		$	585	$	170
	Equipment recovery fees	$	19	$	26		$	39	$	55
	Shipping and handling fees	$	545	$	322		$	924	$	690
	Amount included in direct cost of telephony services
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	USF costs	$	18,396	$	17,125		$	37,089	$	35,230
	Amount included in direct cost of goods sold
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Shipping and handling cost	$	1,580	$	1,436		$	3,137	$	2,844
	Amount included in selling, general and administrative expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Advertising costs	$	213	$	100		$	325	$	188
	Acquisition related costs	$	—	$	—		$	20	$	—
	Acquisition integration cost	$	4	$	—		$	98	$	—
	Amount included in marketing
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Advertising costs	$	37,122	$	36,089		$	71,696	$	67,815
	Depreciation and amortization expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Network equipment and computer hardware	$	3,602	$	3,339		$	7,211	$	6,647
	Software	2,833		2,659			5,548		5,149
	Capital leases	550		549			1,100		1,098
	Other leasehold improvements	1,081		1,032			2,154		2,036
	Furniture	35		29			69		56
	Vehicles	6		3			7		8
	Patents	505		576			1,081		1,152
	Trademarks	18		18			36		36
	Customer relationship	2,134		—			4,268		—
	Acquired technology	1,574		—			3,148		—
	Trade names	50		—			100		—
	Non-compete agreements	4		—			8		—
		12,392		8,205			24,730		16,182
	Property and equipment impairments	2		—			2		(2		)
	Software impairments	65		—			65		—
	Depreciation and amortization expense	$	12,459	$	8,205		$	24,797	$	16,180
	Amount included in interest expense
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Debt related costs amortization	$	255	$	395		$	544	$	783
	Amount included in other income (expense), net
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014		2013			2014		2013
	Net income (loss) resulting from foreign exchange transactions	$	37	$	(22	)	$	22	$	(62	)

LongTerm_Debt_and_Revolving_Cr1

Long-Term Debt and Revolving Credit Facility (Tables)	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Schedule of long-term debt	'
	A schedule of long-term debt at June 30, 2014 and December 31, 2013 is as follows:
		June 30,		December 31,
		2014		2013
	3.125-3.625% Credit Facility - due 2016	$	11,667	$	23,333
	3.125-3.625% Revolving Credit Facility - due 2016	55,000		75,000
Future payments under long-term debt obligations	'
	At June 30, 2014, future payments under long-term debt obligations over each of the next five years and thereafter were as follows:
		Credit Facility
	2014	$	11,667
	2015	23,333
	2016	55,000
	Minimum future payments of principal	90,000
	Less: current portion	23,333
	Long-term portion	$	66,667

Common_Stock_Tables

Common Stock (Tables)	6 Months Ended
	Jun. 30, 2014
$50,000 repurchase program	'
Common stock repurchases:	'
Common stock repurchases	'
	We repurchased the following shares of common stock with cash resources under the $50,000 repurchase program during the three and six months ended June 30, 2013:
		Three Months Ended				Six Months Ended
		June 30,				June 30,
			2013				2013
	Shares of common stock repurchased		—				2,189
	Value of common stock repurchased		$	—			$	5,374
$100,000 repurchase program	'
Common stock repurchases:	'
Common stock repurchases	'
	We repurchased the following shares of common stock with cash resources under the $100,000 repurchase program during the three and six months ended June 30, 2014 and 2013:
		Three Months Ended							Six Months Ended
		June 30,							June 30,
		2014 (1)			2013 (2)				2014 (1)		2013 (2)
	Shares of common stock repurchased	3,523			4,756				5,970		8,795
	Value of common stock repurchased	$	13,244		$	13,451			$	23,287	$	24,458
	(1) including 147 shares, or $556, of common stock repurchases settled in July 2014; excluding commission of $1.
	(2) including 220 shares, or $625, of common stock repurchases settled in July 2013; excluding commission of $4.

Basis_of_Presentation_and_Sign3

Basis of Presentation and Significant Accounting Policies (Details)	6 Months Ended	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2014
	billing_cycle	United States
		Subscriber lines
		Geographic concentration
Concentration risk:	'	'
Percentage of subscriber lines represented by the United States	'	94.00%
Maximum original maturity term of investments to be considered cash and cash equivalents	'3 months	'
Duration of timing difference between customer credit card billed and subsequent settlement of transaction with credit card processors	'3 days	'
Number of unsuccessful billing cycles before account termination	3	'

Basis_of_Presentation_and_Sign4

Basis of Presentation and Significant Accounting Policies - Property and Equipment (Details)	6 Months Ended
	Jun. 30, 2014
Minimum | Network equipment	'
Property and Equipment:	'
Useful life of property and equipment	'3 years
Minimum | Computer hardware	'
Property and Equipment:	'
Useful life of property and equipment	'3 years
Minimum | Furniture	'
Property and Equipment:	'
Useful life of property and equipment	'3 years
Maximum | Network equipment	'
Property and Equipment:	'
Useful life of property and equipment	'5 years
Maximum | Computer hardware	'
Property and Equipment:	'
Useful life of property and equipment	'5 years
Maximum | Furniture	'
Property and Equipment:	'
Useful life of property and equipment	'5 years

Basis_of_Presentation_and_Sign5

Basis of Presentation and Significant Accounting Policies - Intangible Assets (Details)	6 Months Ended
	Jun. 30, 2014
Software | Minimum	'
Finite-lived intangible assets:	'
Intangible asset useful life	'2 years
Software | Maximum	'
Finite-lived intangible assets:	'
Intangible asset useful life	'5 years
Purchased Intangible Assets | Minimum	'
Finite-lived intangible assets:	'
Intangible asset useful life	'2 years
Purchased Intangible Assets | Maximum	'
Finite-lived intangible assets:	'
Intangible asset useful life	'10 years

Basis_of_Presentation_and_Sign6

Basis of Presentation and Significant Accounting Policies - Valuation and Qualifying Accounts - Income Taxes (Details) (USD $)	6 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2011
		Valuation allowance, operating loss carryforwards
Valuation and qualifying accounts disclosure:	'	'
Adjustment to valuation allowance	'	$325,601
Estimated annual effective tax rate	49.00%	'

Basis_of_Presentation_and_Sign7

Basis of Presentation and Significant Accounting Policies - Earnings Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'	'	'
Numerator for earnings per share-net income attributable to Vonage	$5,518	$7,447	$10,106	$20,494
Basic weighted average common shares outstanding (in shares)	211,390	212,169	211,790	213,404
Dilutive effect of stock options and restricted stock units (in shares)	9,612	7,668	9,520	8,927
Diluted weighted average common shares outstanding (in shares)	221,002	219,837	221,310	222,331
Basic net income per share (USD per share)	$0.03	$0.04	$0.05	$0.10
Diluted net income per share (USD per share)	$0.02	$0.03	$0.05	$0.09

Basis_of_Presentation_and_Sign8

Basis of Presentation and Significant Accounting Policies - Earnings Per Share, Antidilutive Securities (Details)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings per share, antidilutive securities:	'	'	'	'
Antidilutive securities excluded from earnings per common share	27,933	29,967	28,025	28,706
Restricted stock units	'	'	'	'
Earnings per share, antidilutive securities:	'	'	'	'
Antidilutive securities excluded from earnings per common share	5,486	2,171	5,477	2,357
Stock options	'	'	'	'
Earnings per share, antidilutive securities:	'	'	'	'
Antidilutive securities excluded from earnings per common share	22,447	27,796	22,548	26,349

Supplemental_Balance_Sheet_Acc2

Supplemental Balance Sheet Account Information (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Prepaid expenses and other current assets:	'	'
Nontrade receivables	$9,039	$7,402
Services	9,825	7,084
Telecommunications	493	479
Insurance	954	757
Marketing	1,205	312
Other prepaids	2,007	858
Prepaid expenses and other current assets	23,523	16,892
Debt related costs, net:	'	'
Senior secured term loan	4,706	4,706
Less: accumulated amortization	-3,937	-3,393
Debt related costs, net	769	1,313
Accrued expenses:	'	'
Compensation and related taxes and temporary labor	15,600	20,276
Marketing	26,071	23,277
Taxes and fees	16,486	18,207
Litigation and settlements	339	89
Telecommunications	8,373	7,942
Other accruals	4,335	6,063
Customer credits	1,542	1,719
Professional fees	3,120	2,490
Accrued interest	10	12
Inventory	216	769
Credit card fees	314	283
Accrued expenses	$76,406	$81,127

Supplemental_Balance_Sheet_Acc3

Supplemental Balance Sheet Account Information - Property and Equipment (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property and Equipment:	'	'
Property equipment, gross	$147,721	$149,083
Less: accumulated depreciation and amortization	-102,891	-96,840
Property and equipment, net	44,830	52,243
Building (under capital lease)	'	'
Property and Equipment:	'	'
Property equipment, gross	25,709	25,709
Network equipment and computer hardware	'	'
Property and Equipment:	'	'
Property equipment, gross	75,598	78,312
Leasehold improvements	'	'
Property and Equipment:	'	'
Property equipment, gross	44,900	44,141
Furniture	'	'
Property and Equipment:	'	'
Property equipment, gross	1,422	812
Vehicles	'	'
Property and Equipment:	'	'
Property equipment, gross	$92	$109

Supplemental_Balance_Sheet_Acc4

Supplemental Balance Sheet Account Information - Software (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Software:	'	'
Software, gross	$88,114	$82,175
Less: accumulated amortization	-66,046	-61,618
Software, net	22,068	20,557
Purchased	'	'
Software:	'	'
Software, gross	51,117	45,178
Licensed	'	'
Software:	'	'
Software, gross	909	909
Internally developed	'	'
Software:	'	'
Software, gross	$36,088	$36,088

Supplemental_Balance_Sheet_Acc5

Supplemental Balance Sheet Account Information - Restricted Cash (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Restricted cash:	'	'
Restricted cash	$3,411	$4,405
Letter of credit-lease deposits	'	'
Restricted cash:	'	'
Restricted cash	3,308	4,306
Cash reserves	'	'
Restricted cash:	'	'
Restricted cash	$103	$99

Supplemental_Balance_Sheet_Acc6

Supplemental Balance Sheet Account Information - Intangible Assets (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-lived intangible assets:	'	'
Intangible assets, gross	$88,324	$93,824
Less: accumulated amortization	-20,117	-16,974
Intangible assets, net	68,207	76,850
Customer relationships	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	39,100	39,100
Developed technology	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	35,200	35,200
Patents and patent licenses	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	12,764	18,264
Trademark	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	560	560
Trade names	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	500	500
Non-compete agreements	'	'
Finite-lived intangible assets:	'	'
Intangible assets, gross	$200	$200

Supplemental_Income_Statement_2

Supplemental Income Statement Account Information (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:	'	'	'	'
USF fees	$18,396	$17,125	$37,032	$35,230
Disconnect fees	906	1,066	1,679	2,306
Initial activation fees	273	319	587	673
Customer equipment fees	174	12	585	170
Equipment recovery fees	19	26	39	55
Shipping and handling fees	545	322	924	690
Depreciation:	'	'	'	'
Depreciation and amortization expense	12,459	8,205	24,797	16,180
Debt related costs amortization	'	'	544	783
Direct Cost Of Telephony Services	'	'	'	'
Revenues:	'	'	'	'
USF costs	18,396	17,125	37,089	35,230
Direct cost of goods sold	'	'	'	'
Revenues:	'	'	'	'
Shipping and handling cost	1,580	1,436	3,137	2,844
Selling, general and administrative expense	'	'	'	'
Revenues:	'	'	'	'
Advertising costs	213	100	325	188
Acquisition related costs	0	0	20	0
Acquisition integration cost	4	0	98	0
Marketing	'	'	'	'
Revenues:	'	'	'	'
Advertising costs	37,122	36,089	71,696	67,815
Depreciation and amortization	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	12,392	8,205	24,730	16,182
Depreciation and amortization expense	12,459	8,205	24,797	16,180
Depreciation and amortization | Patents	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	505	576	1,081	1,152
Depreciation and amortization | Trademark	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	18	18	36	36
Depreciation and amortization | Customer relationships	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	2,134	0	4,268	0
Depreciation and amortization | Acquired technology	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	1,574	0	3,148	0
Depreciation and amortization | Trade names	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	50	0	100	0
Depreciation and amortization | Non-compete agreements	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	4	0	8	0
Depreciation and amortization | Property and Equipment	'	'	'	'
Depreciation:	'	'	'	'
Property and equipment impairments	2	0	2	-2
Depreciation and amortization | Network equipment and computer hardware	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	3,602	3,339	7,211	6,647
Depreciation and amortization | Software	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	2,833	2,659	5,548	5,149
Software impairments	65	0	65	0
Depreciation and amortization | Capital leases	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	550	549	1,100	1,098
Depreciation and amortization | Other leasehold improvements	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	1,081	1,032	2,154	2,036
Depreciation and amortization | Furniture	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	35	29	69	56
Depreciation and amortization | Vehicles	'	'	'	'
Depreciation:	'	'	'	'
Depreciation and amortization expense, excluding impairments	6	3	7	8
Interest expense	'	'	'	'
Depreciation:	'	'	'	'
Debt related costs amortization	255	395	544	783
Other income (expense), net	'	'	'	'
Depreciation:	'	'	'	'
Net income (loss) resulting from foreign exchange transactions	$37	($22)	$22	($62)

LongTerm_Debt_and_Revolving_Cr2

Long-Term Debt and Revolving Credit Facility (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Future payments under long-term debt obligations:	'	'
2014	$11,667	'
2015	23,333	'
2016	55,000	'
Minimum future payments of principal	90,000	'
Less: current portion	23,333	23,333
Long-term portion	66,667	'
Secured debt | 2013 Credit Facility	'	'
Schedule of long term debt:	'	'
Amount outstanding	11,667	23,333
Stated interest rate, minimum	3.13%	'
Stated interest rate, maximum	3.63%	'
Secured debt | 2011 Credit Facility	'	'
Schedule of long term debt:	'	'
Amount outstanding	$55,000	$75,000
Stated interest rate, minimum	3.13%	'
Stated interest rate, maximum	3.63%	'

LongTerm_Debt_and_Revolving_Cr3

Long-Term Debt and Revolving Credit Facility - Financing (Details) (Secured debt, 2013 Credit Facility, USD $)	Jul. 26, 2013	Feb. 11, 2013
Senior secured term loan	'	'
Long-term debt and revolving credit facility:	'	'
Line of credit facility, maximum borrowing capacity	'	$70,000,000
Revolving credit facility	'	'
Long-term debt and revolving credit facility:	'	'
Line of credit facility, maximum borrowing capacity	'	75,000,000
Maximum	'	'
Long-term debt and revolving credit facility:	'	'
Restricted payments adjusted amount for consolidated fixed coverage charge ratio requirement	$80,000,000	$50,000,000

LongTerm_Debt_and_Revolving_Cr4

Long-Term Debt and Revolving Credit Facility - Use of Proceeds (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Feb. 11, 2013	Feb. 11, 2013	Feb. 11, 2013	Nov. 15, 2013
In Thousands, unless otherwise specified			Secured debt	Senior secured term loan	Senior secured term loan	Vocalocity
			2013 Credit Facility	Secured debt	Secured debt	2013 Credit Facility
				2011 Credit Facility	2013 Credit Facility
Long-term debt and revolving credit facility:	'	'	'	'	'	'
Proceeds from the issuance of debt	'	'	$27,500	'	'	'
Fees in connection with credit facilities	4,706	4,706	'	670	2,009	'
Payments in connection with acquisition from revolving credit facility	'	'	'	'	'	$75,000

LongTerm_Debt_and_Revolving_Cr5

Long-Term Debt and Revolving Credit Facility - Facility Terms (Details) (Secured debt, 2013 Credit Facility, USD $)

0 Months Ended

0 Months Ended

0 Months Ended

Feb. 11, 2013

Jul. 26, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Feb. 11, 2013

Maximum

Maximum

Minimum

LIBOR, Consolidated Leverage Ratio less than .75 to 1.00

LIBOR, Consolidated Leverage Ratio less than .75 to 1.00

LIBOR, Consolidated Leverage Ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

LIBOR, Consolidated Leverage Ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

LIBOR, Consolidated Leverage Ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

LIBOR, consolidated leverage ratio greater than or equal to 1.50 to 1.00

LIBOR, consolidated leverage ratio greater than or equal to 1.50 to 1.00

LIBOR applicable to one month interest periods, consolidated levarage ratio greater than or equal to 1.50 to 1.00

LIBOR applicable to one month interest periods, consolidated levarage ratio greater than or equal to 1.50 to 1.00

Base rate

Federal Funds effective rate

Prime rate

LIBOR applicable to one month interest periods

LIBOR applicable to one month interest periods, conolidated leverage ratio less than .75 to 1.00

LIBOR applicable to one month interest periods, conolidated leverage ratio less than .75 to 1.00

LIBOR applicable to one month interest periods, consolidated leverage ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

LIBOR applicable to one month interest periods, consolidated leverage ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

LIBOR applicable to one month interest periods, consolidated leverage ratio greater than or equal to .75 to 1.00 and less than 1.50 to 1.00

Senior secured term loan

Revolving credit facility

Revolving credit facility

Loans payable

Maximum

Maximum

Minimum

Minimum

Minimum

JP Morgan Chase Bank, N.A.

Maximum

Maximum

Minimum

London Interbank Offered Rate (LIBOR)

Long-term debt and revolving credit facility:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Periodic payment amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$5,833,000

'

'

'

Commitment fee percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.45%

'

'

Description of variable rate basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'base rate

'federal funds effective rate

'prime rate

'LIBOR rate applicable to one month interest periods

'

'

'

'

'

'

'

'LIBOR

'

Basis spread on variable rate

'

'

'

'

3.13%

'

3.38%

'

'

3.63%

'

2.63%

'

'

0.50%

'

'

2.13%

'

2.28%

'

'

'

'

'

'

Consolidated leverage ratio

'

'

'

'

'

75.00%

'

150.00%

75.00%

'

150.00%

'

150.00%

'

'

'

'

'

75.00%

'

150.00%

75.00%

'

'

'

'

Duration of interest period used to determine interest rate

'3 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage in addition to basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

Prepayment amount percentage of net cash proceeds from disposition of assets

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Prepayment amount percentage of net cash proceeds received with other non-ordinary course transaction

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional Borrowing Capacity Allowed

60,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated leverage ratio permitted by financial covenants

'

'

200.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated fixed coverage charge ratio permitted by financial covenants

'

'

175.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted payments adjusted amount for consolidated fixed coverage charge ratio requirement

'

80,000,000

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash requirement for financial covenants

'

'

'

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual excess cash flow in addition to unused capital expenditures limit carried forward permitted by financial covenants in event of specified corporate actions

'

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual capital expenditures permitted by financial covenants

'

'

55,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual excess cash flow in addition to unused capital expenditures limit carried forward permitted by financial covenants

'

'

$8,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional interest rate applied in the event of default

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

Common_Stock_Details

Common Stock (Details) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Feb. 19, 2013	Jun. 07, 2012
Stockholders' Equity Note [Abstract]	'	'
Ownership percentage limit for 5-percentage points shareholders under the NOL Rights Agreement	'	50.00%
Rolling period determining ownership percentage limit under NOL Rights Agreement	'	'3 years
Dividend declared, preferred share purchase right, conversion ratio	'	1
Maximum ownership percentage limit under the NOL Rights Agreement in which significant dilution would be imposed	'	4.90%
Stock option cancellation (in shares)	4,500	'
Stock option cancellation	$5,463	'

Common_Stock_Common_Stock_Repu

Common Stock - Common Stock Repurchases (Details) (USD $)

6 Months Ended

0 Months Ended

3 Months Ended

6 Months Ended

7 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

6 Months Ended

Share data in Thousands, unless otherwise specified

Jun. 30, 2014

Jun. 30, 2013

Feb. 12, 2013

Jul. 25, 2012

Jun. 30, 2013

Jun. 30, 2013

Feb. 12, 2013

Jun. 30, 2014

Jun. 30, 2013

Feb. 07, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

$50,000 repurchase program

$50,000 repurchase program

$50,000 repurchase program

$50,000 repurchase program

$50,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

$100,000 repurchase program

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common Stock

Common stock repurchases:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Authorized amount of stock repurchase

'

'

'

$50,000,000

'

'

$50,000,000

'

'

$100,000,000

'

'

'

'

Shares of common stock repurchased (in shares)

'

'

'

'

0

2,189

'

'

'

'

3,523

[1]

4,756

[2]

5,970

[1]

8,795

[2]

Value of common stock repurchased

23,347,000

'

'

'

0

5,374,000

'

'

'

'

13,244,000

[1]

13,451,000

[2]

23,287,000

[1]

24,458,000

[2]

Remaining authorized amount of stock repurchase program

'

'

16,682,000

'

'

'

'

'

'

'

26,060,000

'

'

'

Stock repurchased during period, unpaid (in shares)

'

'

'

'

'

'

'

'

'

'

147

220

'

'

Stock repurchased during period, unpaid

558,000

629,000

'

'

'

'

'

'

'

'

556,000

625,000

'

'

Payments for repurchase of common stock commission costs

'

'

'

'

'

'

'

$1,000

$4,000

'

'

'

'

'

[1]

including 147 shares, or $556, of common stock repurchases settled in July 2014; excluding commission of $1.

[2]

including 220 shares, or $625, of common stock repurchases settled in July 2013; excluding commission of $4.

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	0 Months Ended	5 Months Ended
In Thousands, unless otherwise specified	Feb. 11, 2013	Mar. 05, 2013	Jun. 30, 2014	Dec. 31, 2013
	Defendant
Commitments and contingencies:	'	'	'	'
Number of defendants	27	'	'	'
Percent increase in cost To terminate international calls to Pakistan	'	500.00%	'	'
Restricted cash	'	'	$3,411	$4,405
Reserve for potential tax liability pending new requirements from state or municipal agencies	'	'	5,708	'
Estimated maximum potential exposure for retroactive tax assessments	'	'	7,000	'
Letter of credit	'	'	'	'
Commitments and contingencies:	'	'	'	'
Restricted cash	'	'	3,308	4,306
Marketing Related Services	'	'	'	'
Commitments and contingencies:	'	'	'	'
Vendor commitments due in 2014	'	'	100	'
Vendor commitments due in 2015	'	'	900	'
Vendor commitments due in 2016	'	'	1,500	'
Vendor commitments due in 2017	'	'	1,500	'
Vendor commitments due in 2018	'	'	1,500	'
Vendor commitments due in 2019	'	'	1,500	'
Vendor commitments due in 2020	'	'	1,100	'
Purchased	'	'	'	'
Commitments and contingencies:	'	'	'	'
Vendor commitments due in 2014	'	'	500	'
Vendor commitments due in 2015	'	'	1,000	'
Vendor commitments due in 2016	'	'	1,000	'
Vendor commitments due in 2017	'	'	100	'
Networks Services	'	'	'	'
Commitments and contingencies:	'	'	'	'
Vendor commitments due in 2015	'	'	'	'

Redeemable_Noncontrolling_Inte1

Redeemable Noncontrolling Interest (Details) (USD $)	0 Months Ended			3 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Feb. 13, 2014	Jun. 30, 2014	Dec. 03, 2013	Jun. 30, 2014	Jun. 30, 2014	Feb. 13, 2014	Dec. 03, 2013
				Minimum	Maximum	SELIC Rate [Member]	SELIC Rate [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Redeemable noncontrolling interest percentage ownership	'	30.00%	'	'	'	'	'
Call right exercise agreement, percent adjustment to appraised value of redeemable non-controlling interest	'	'	'	50.00%	150.00%	'	'
Put right exercise agreement, percent adjustment to appraised value of redeemable non-controlling interest	'	'	'	50.00%	120.00%	'	'
Loan to consolidated foreign subsidiary	'	'	$545	'	'	'	'
Loan to noncontrolling owners, basis spread on variable rate	'	'	'	'	'	'	105.00%
Capital call requirement	503	'	'	'	'	'	'
Noncontrolling interest, ownership percentage by parent	91.00%	'	'	'	'	'	'
Price for joint venture to repurchase diluted equity, loan, basis spread on variable rate	'	'	'	'	'	105.00%	'
Price for joint venture to repurchase diluted equity, portion for capital call requirement	$503	'	'	'	'	'	'
Price for joint venture to repurchase diluted equity, capital call requirement, basis spread on variable rate	'	'	'	'	'	107.00%	'