Inteliquent (IQNT) Inactive 10-K11 Mar 142013 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2013	Feb. 28, 2014	Jun. 28, 2013
Document Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'IQNT	'	'
Entity Registrant Name	'INTELIQUENT, INC.	'	'
Entity Central Index Key	'0001292653	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	32,263,619	'
Entity Public Float	'	'	$172,935,246

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:	'	'
Cash and cash equivalents	$77,004	$31,479
Receivables, net of allowance of $900 and $423, respectively	22,200	30,759
Deferred income taxes-current	720	1,210
Prepaid expenses	2,375	6,405
Other current assets	1,977	'
Current assets of discontinued operations	'	27,217
Total current assets	104,276	97,070
Property and equipment-net	25,815	43,823
Restricted cash	125	962
Deferred income taxes-non-current	5,495	2,710
Other assets	1,534	1,035
Total assets	137,245	145,600
Current liabilities:	'	'
Accounts payable	2,176	7,546
Accrued liabilities:	'	'
Taxes payable	2,437	2,160
Circuit cost	8,987	8,821
Rent	2,071	1,829
Payroll and related items	3,079	2,687
Other	1,674	1,062
Current liabilities of discontinued operations	'	22,402
Total current liabilities	20,424	46,507
Commitments and contingencies (Note 9)	'	'
Shareholders' equity:	'	'
Preferred stock-par value of $.001; 50,000 authorized shares; no shares issued and outstanding at December 31, 2013 and December 31, 2012	'	'
Common stock-par value of $.001; 150,000 authorized shares; 32,215 shares and 32,345 shares issued and outstanding at December 31, 2013 and December 31, 2012, respectively	32	32
Less treasury stock, at cost; 3,351 shares in 2013 and 3,083 shares in 2012	-51,668	-50,103
Additional paid-in capital	203,989	199,331
Accumulated other comprehensive loss	'	-4,904
Accumulated deficit	-35,532	-45,263
Total shareholders' equity	116,821	99,093
Total liabilities and shareholders' equity	$137,245	$145,600

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Receivables, allowance	$900	$423
Preferred stock, par value	$0.00	$0.00
Preferred stock, authorized shares	50,000	50,000
Preferred stock, shares issued	'	'
Preferred stock, shares outstanding	'	'
Common stock, par value	$0.00	$0.00
Common stock, authorized shares	150,000	150,000
Common stock, shares issued	32,215	32,345
Common stock, shares outstanding	32,215	32,345
Treasury stock, at cost, shares	3,351	3,083

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011
Revenue	$224,603
Operating expense:	'
Network and facilities expense (excluding depreciation and amortization)	83,324
Operations	30,553
Sales and marketing	6,339
General and administrative	23,025
Depreciation and amortization	20,583
Loss (gain) on sale of assets	362
Total operating expense	164,186
Income (loss) from operations	60,417
Other income (expense):	'
Interest income	39
Other income (expense)	-395
Foreign exchange gain	552
16 Total other income (expense) Nonoperating?Income?Expense 34 17 (3) (46)	196
Income (loss) from continuing operations before provision for income taxes	60,613
Provision for income taxes	20,508
Income (loss) from continuing operations	40,105
Loss from discontinued operations, net of provision for income taxes	-13,048
Net income (loss)	$27,057
Earnings (loss) per share-continuing operations :	'
Basic	$1.22
Diluted	$1.21
Loss per share-discontinued operations :	'
Basic	($0.40)
Diluted	($0.39)
Earnings (loss) per share-net income (loss):	'
Basic	$0.83
Diluted	$0.82
Weighted average number of shares outstanding :	'
Basic	32,780
Diluted	33,195

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$55,653	($78,149)	$27,057
Other comprehensive income (loss):	'	'	'
Foreign currency translation	4,904	-558	-2,229
Total other comprehensive income (loss)	4,904	-558	-2,229
Total comprehensive income (loss)	$60,557	($78,707)	$24,828

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholders' Equity (USD $)	Total	Common Shares Outstanding	Treasury Shares	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
In Thousands	Total	Common Shares Outstanding	Treasury Shares	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2010	$271,283	$33	'	$171,343	$102,024	($2,117)
Beginning Balance (in shares) at Dec. 31, 2010	'	33,166	'	'	'	'
Net income (loss)	27,057	'	'	'	27,057	'
Foreign currency translation	-2,229	'	'	'	'	-2,229
Tax benefit (deficiency) associated with share-based payments	-435	'	'	-435	'	'
Exercise of stock options (in shares)	'	84	'	'	'	'
Exercise of stock options	256	'	'	256	'	'
Stock option and non-vested share expense	15,120	'	'	15,120	'	'
Repurchase of common stock (in shares)	'	-3,083	'	'	'	'
Repurchase of common stock	-50,106	-3	-50,103	'	'	'
Activity related to non-vested shares (in shares)	'	1,353	'	'	'	'
Activity related to non-vested shares	-1,268	2	'	-1,270	'	'
Ending Balance at Dec. 31, 2011	259,678	32	-50,103	185,014	129,081	-4,346
Ending Balance (in shares) at Dec. 31, 2011	'	31,520	'	'	'	'
Net income (loss)	-78,149	'	'	'	-78,149	'
Dividend payment	-96,195	'	'	'	-96,195	'
Foreign currency translation	-558	'	'	'	'	-558
Tax benefit (deficiency) associated with share-based payments	1,066	'	'	1,066	'	'
Exercise of stock options (in shares)	508	508	'	'	'	'
Exercise of stock options	1,396	'	'	1,396	'	'
Stock option and non-vested share expense	13,171	'	'	13,171	'	'
Activity related to non-vested shares (in shares)	'	317	'	'	'	'
Activity related to non-vested shares	-1,316	'	'	-1,316	'	'
Ending Balance at Dec. 31, 2012	99,093	32	-50,103	199,331	-45,263	-4,904
Ending Balance (in shares) at Dec. 31, 2012	'	32,345	'	'	'	'
Net income (loss)	55,653	'	'	'	55,653	'
Dividend payment	-45,922	'	'	'	-45,922	'
Foreign currency translation	4,904	'	'	'	'	4,904
Tax benefit (deficiency) associated with share-based payments	-1,165	'	'	-1,165	'	'
Exercise of stock options (in shares)	206	206	'	'	'	'
Exercise of stock options	468	'	'	468	'	'
Stock option and non-vested share expense	6,163	'	'	6,163	'	'
Repurchase of common stock (in shares)	'	-268	'	'	'	'
Repurchase of common stock	-1,565	'	-1,565	'	'	'
Activity related to non-vested shares (in shares)	'	-68	'	'	'	'
Activity related to non-vested shares	-808	'	'	-808	'	'
Ending Balance at Dec. 31, 2013	$116,821	$32	($51,668)	$203,989	($35,532)	'
Ending Balance (in shares) at Dec. 31, 2013	'	32,215	'	'	'	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating	'	'	'
Net income (loss)	$55,653	($78,149)	$27,057
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	15,894	29,749	29,366
Deferred income taxes	-2,295	-8,592	-3,698
Impairment of fixed assets	'	16,149	'
Impairment of goodwill and intangibles	'	75,340	'
Loss on sale of assets	458	732	439
Non-cash share-based compensation	6,163	13,171	15,120
Provision for uncollectible accounts	900	1,077	1,320
Gain on sale of Americas Data assets	-28,791	'	'
Loss on sale of discontinued operations	4,837	'	'
Gain (loss) on intercompany foreign exchange transactions	56	-328	-98
Excess tax deficiency (benefit) associated with share-based payments	-262	-1,066	435
Changes in assets and liabilities, net of effect of acquisitions and dispositions:	'	'	'
Receivables	4,281	3,668	-11,120
Other current assets	180	-3,635	726
Other noncurrent assets	199	1,247	-929
Accounts payable	-3,830	1,310	-2,744
Accrued liabilities	3,922	11,193	1,343
Noncurrent liabilities	'	-297	497
Net cash provided by operating activities	57,365	61,569	57,714
Investing	'	'	'
Purchase of equipment	-12,470	-25,922	-21,986
Proceeds from sale of equipment	28	206	27
Decrease in restricted cash	837	'	'
Sale (purchase) of other investments	534	'	-500
Proceeds from sale of Americas Data assets, net of transaction costs	4,203	'	'
Proceeds from sale of discontinued operations, net of transaction costs	42,587	'	'
Net cash provided by (used for) investing activities	35,719	-25,716	-22,459
Financing	'	'	'
Proceeds from the exercise of stock options	468	1,396	256
Restricted shares withheld to cover employee taxes paid	-808	-1,316	-1,268
Payments made for repurchase of common stock	-1,565	'	-50,106
Excess tax (deficiency) benefit associated with share-based payments	262	1,066	-435
Dividends paid	-45,922	-96,195	'
Net cash used for financing activities	-47,565	-95,049	-51,553
Effect of exchange rate changes on cash	6	396	-97
Net Increase (Decrease) In Cash And Cash Equivalents	45,525	-58,800	-16,395
Cash And Cash Equivalents-Beginning	31,479	90,279	106,674
Cash And Cash Equivalents-End	77,004	31,479	90,279
Supplemental Disclosure Of Cash Flow Information :	'	'	'
Cash paid for interest	'	'	'
Cash paid for taxes	12,695	12,811	20,421
Supplemental Disclosure Of Noncash Flow Items :	'	'	'
Investing Activity-Accrued purchases of equipment	$1,742	$3,415	$6,464

DESCRIPTION_OF_THE_BUSINESS

DESCRIPTION OF THE BUSINESS	12 Months Ended
	Dec. 31, 2013
DESCRIPTION OF THE BUSINESS	'
	1	DESCRIPTION OF THE BUSINESS
	Organization—Inteliquent, Inc. (the Company) provides voice telecommunications services primarily on a wholesale basis. The Company offers these services using an all-IP network, which enables the Company to deliver global connectivity for a variety of media, including voice and, historically, data and video. The Company’s solutions enable carriers and other providers to deliver voice traffic or other services where they do not have their own network or elect not to use their own network. These solutions are sometimes called “off-net” services.
	On April 30, 2013, the Company sold its global data business to Global Telecom & Technology, Inc. (GTT) for $54.5 million, subject to certain adjustments. The total consideration consisted of $52.5 million in cash, subject to net working capital adjustments, and $2.0 million of non-cash commercial IP Transit and point-to-point Ethernet data network services to be provided to the Company by GTT free-of-charge for a three-year period. The $2.0 million of non-cash commercial services was calculated based upon the discounted present value of the market cost of such services as of the date on which the commercial services agreement was signed with GTT. In addition, the Company recorded in its consolidated statement of operations, as part of its gain amount on the sale of its global data business, approximately $2.4 million for divestiture-related costs, including legal and advisory services.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2013
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	2	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Principles of Consolidation—The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
	Changes in Presentation—On April 30, 2013, the Company sold its global data business to GTT for $54.5 million, subject to certain adjustments. The Company determined that the appropriate level in which to assess discontinued operations was at its reporting unit level. As such, the Company’s Europe, Middle East and Africa (EMEA) and Asia Pacific (APAC) reporting units of the global data business consist of results of operations and cash flows that can be clearly distinguished from the rest of the entity and are therefore reflected in the consolidated statements of operations and in the consolidated balance sheets as discontinued operations. Historical information related to these reporting units have been reclassified accordingly. The Americas reporting unit of the global data business does not consist of results of operations and cash flows that can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the entity. This reporting unit does not qualify for discontinued operations accounting treatment. Therefore, the Americas reporting unit of the global data business is reported in continuing operations in the consolidated statements of operations and in the consolidated balance sheets. Refer to Note 3 “Business Disposition” for more information regarding the sale of the global data business.
	Use of Estimates—The Company’s consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America. These accounting principles require management to make certain estimates and assumptions that can affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the periods presented. The Company believes that the estimates and assumptions upon which it relies are reasonable based upon information available to it at the time that these estimates and assumptions are made. To the extent there are material differences between these estimates and actual results, the Company’s consolidated financial statements will be affected.

	Cash and Cash Equivalents—The Company considers all highly liquid investments with an original maturity of 90 days or less to be cash equivalents. The carrying values of our cash and cash equivalents approximate fair value. At December 31, 2013 the Company had $35.2 million of cash in banks and $41.8 million in three money market funds. At December 31, 2012, the Company had $30.7 million of cash in banks and $0.8 million in two money market funds.
	Fair Value Measurements—Certain assets and liabilities are required to be recorded at fair value on a recurring basis. Fair value is determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. Assets measured at fair value on a nonrecurring basis include long-lived assets held and used, long-lived assets held for sale, goodwill and other intangible assets. The fair value of cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values. The three-tier value hierarchy, which prioritizes valuation methodologies based on the reliability of the inputs, is:
	Level 1—Valuations based on quoted prices for identical assets and liabilities in active markets.
	Level 2—Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.
	Level 3—Valuations based on unobservable inputs reflecting the Company’s own assumptions, consistent with reasonably available assumptions made by other market participants.
	Property and Equipment— Property and equipment is recorded at cost. These values are depreciated over the estimated useful lives of the individual assets using the straight-line method. Any gains and losses from the disposition of property and equipment are included in operations as incurred. The estimated useful life for network equipment and tools and test equipment is five years. The estimated useful life for computer equipment, computer software and furniture and fixtures is three years. Leasehold improvements are amortized on a straight-line basis over an estimated useful life of five years or the life of the lease, whichever is less. As discussed in further detail below, the impairment of long-lived assets is evaluated when events or changes in circumstances indicate that a potential impairment has occurred.
	Long-lived Assets—The carrying value of long-lived assets, including property and equipment, are reviewed whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Impairment of assets with definite lives is generally determined by comparing projected undiscounted cash flows to be generated by the asset, or appropriate grouping of assets, to its carrying value. If an impairment is identified, a loss is recorded equal to the excess of the asset’s net book value over its fair value. The fair value is the new cost basis of the asset. Determining the extent of an impairment, if any, typically requires various estimates and assumptions including using management’s judgment, cash flows directly attributable to the asset, the useful life of the asset and residual value, if any. In addition, the remaining useful life of the impaired asset is revised, if necessary. There were no property and equipment and intangible asset impairment charges in 2013 or 2011.
	During the year ended December 31, 2012, the Company recorded property and equipment and intangible assets impairment charges of $13.2 million and $25.8 million, respectively, as a result of an impairment test performed during fourth quarter of 2012. The Company recorded property and equipment impairment charges in each of its three reporting units, Americas, EMEA and APAC, in the amount of $4.9 million, $7.8 million and $0.5 million, respectively. The Company recorded intangible assets impairment charges in each of our three reporting units, Americas, EMEA and APAC, in the amount of $17.3 million, $7.7 million and $0.8 million, respectively. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations. The results of the test are further described in Note 4 “Property and Equipment” and Note 10 “Goodwill and Intangibles, Net”. In addition, the Company ceased its hosted services offering during the year-ended December 31, 2012. As the equipment had no further use in the Company’s network the Company recorded an asset impairment charge of $2.9 million to write-off the related assets.
	Goodwill—Goodwill represents the excess of the purchase price of an acquired business over the fair value of assets and liabilities assumed in the business combination. Goodwill is not amortized. Goodwill is reviewed for impairment at least annually, or when events and circumstances indicate that it is more likely than not that the fair value of the reporting unit is less than its carrying value. The Company compares each reporting unit’s fair value, by considering comparable company market valuations and estimating expected future discounted cash flows to be generated by the reporting unit, to its carrying value. If the carrying value exceeds the reporting unit’s fair value, the Company performs an additional fair value measurement calculation to determine the impairment loss. The amount of impairment is determined by comparing the implied fair value of reporting unit goodwill to the carrying value of the goodwill.
	During the year ended December 31, 2012 the Company recorded goodwill impairment charges in each of its three reporting units, Americas, EMEA and APAC, in the amount of $44.5 million, $4.5 million and $0.5 million, respectively, which in total, resulted in a charge of $49.5 million. See Note 10 “Goodwill and Intangibles, Net”. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations.
	Revenue Recognition—The Company generates revenue from sales of its voice services. The Company maintains tariffs and executed service agreements with each of its customers in which specific fees and rates are determined. Voice revenue is recorded each month on an accrual basis based upon minutes of traffic switched by the Company’s network by each customer, which is referred to as minutes of use. The rates charged per minute are determined by contracts between the Company and its customers, or by filed and effective tariffs.
	Prior to the sale of the Company’s global data business IP Transit and Ethernet services revenues related to the Company’s Americas reporting unit for the first four months of 2013 were recorded each month on an accrual basis based upon bandwidth used by each customer. The rates charged were the total of a monthly fee for bandwidth (the Committed Traffic Rate) plus additional charges for the sustained peak bandwidth used monthly in excess of the Committed Traffic Rate.
	Earnings (Loss) Per Share—Basic earnings (loss) per share is computed based on the weighted average number of common shares and participating securities outstanding. Diluted earnings (loss) per share is computed based on the weighted average number of common shares and participating securities outstanding adjusted by the number of additional shares that would have been outstanding during the period had the potentially dilutive securities been issued.

	The following table presents a reconciliation of the numerators and denominators of basic and diluted earnings (loss) per share of common stock:


	Years ended December 31		2013			2012			2011
	Numerator:
	Income (loss) from continuing operations		$	64,298		$	(34,246	)	$	40,105
	Loss from discontinued operations, net of provision for income taxes			(3,808	)		(43,903	)		(13,048	)
	Loss on sale of discontinued operations, net of provision for income taxes			(4,837	)		—			—

	Net income (loss)		$	55,653		$	(78,149	)	$	27,057

	Denominator:
	Weighted average common shares outstanding			32,306			30,798			32,780
	Effect of dilutive securities:
	Stock options and non-vested shares			251			—			415

	Denominator for diluted earnings per share			32,557			30,798			33,195

	Earnings (loss) per share—continuing operations:
	Basic		$	1.99		$	(1.11	)	$	1.22
	Diluted		$	1.97		$	(1.11	)	$	1.21
	Loss per share—discontinued operations:
	Basic		$	(0.27	)	$	(1.43	)	$	(0.40	)
	Diluted		$	(0.27	)	$	(1.43	)	$	(0.39	)
	Earnings (loss) per share—net income:
	Basic		$	1.72		$	(2.54	)	$	0.83
	Diluted		$	1.71		$	(2.54	)	$	0.82
	For the year ended December 31, 2012, the Company was in a net loss position and, accordingly, the assumed exercise of 0.3 million stock options was excluded from diluted weighted average shares outstanding because their inclusion would have been anti-dilutive.
	Outstanding share-based awards of 2.4 million, 3.5 million, and 2.8 million were outstanding during the years ended December 31, 2013, 2012 and 2011, respectively, but were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.
	For the years ended December 31, 2013 and 2011, the undistributed earnings allocable to participating securities were $0.2 million and $1.1 million, respectively.
	Accounting for Share-Based Payments—The fair value of stock options is determined using the Black-Scholes valuation model. This model takes into account the exercise price of the stock option, the fair value of the common stock underlying the stock option as measured on the date of grant and an estimation of the volatility of the common stock underlying the stock option. Such value is recognized as expense over the service period, net of estimated forfeitures, using the straight-line method. The estimation of stock awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from the Company’s current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. The Company considers many factors when estimating expected forfeitures, including types of awards, employee class, and historical experience. Actual results, and future changes in estimates, may differ from the Company’s current estimates.
	The amount of non-cash share-based expense recorded in the years ended December 31, 2013, 2012 and 2011 was $6.2 million, $13.2 million, and $15.1 million, respectively.
	Compensation expense for non-vested shares is measured based upon the quoted closing market price for the stock on the date of grant. The compensation cost is recognized on a straight-line basis over the vesting period. See Note 13 “Stock Options and Non-vested Shares”.

	Income Taxes—Deferred income tax assets and liabilities are recognized for future income tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases and for net operating loss and tax credit carryforwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred income tax assets and liabilities of a change in income tax rates is recorded in earnings in the period of enactment. A valuation allowance is provided for deferred income tax assets when it is more likely than not that future tax benefits will not be realized. Deferred income tax assets are reviewed on a quarterly basis to determine if a valuation allowance is necessary based on current and historical performance, along with other relevant factors.
	The income tax provision includes U.S. federal state and local income taxes and is based on pre-tax income or loss.
	The Company recognizes the benefits of uncertain tax positions taken or expected to be taken in tax returns in the provision for income taxes only for those positions that are more likely than not to be realized. The Company follows a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company considers many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. The Company’s policy is to include interest and penalties associated with income tax obligations in income tax expense.
	Foreign Currency Translation—As a result of the sale of global data business, the Company is paid and makes payments in U.S. Dollars and is no longer exposed to any significant foreign currency risk.
	Concentrations—For the years ended 2013, 2012 and 2011, the aggregate revenue of four customers accounted for 65%, 56% and 55% of total revenue from continuing operations, respectively. At December 31, 2013 and 2012, the aggregate accounts receivable of four customers accounted for 75% and 61% of the Company’s total trade accounts receivable balance, respectively.
	In 2013, the Company had two customers in excess of ten percent of revenue, which were 34% and 20% of the Company’s total revenue from continuing operations. At December 31, 2013, the Company had two customers that in aggregate accounted for 61% of the Company’s accounts receivable balance.
	In 2012, the Company had two customers in excess of ten percent of revenue, which were 30% and 11% of the Company’s total revenue from continuing operations. At December 31, 2012, the Company had two customers that in aggregate accounted for 48% of the Company’s accounts receivable balance.
	In 2011, the Company had two customers in excess of ten percent of revenue, which were 26% and 15% of the Company’s total revenue from continuing operations.
	Recent Accounting Pronouncements—Effective January 1, 2013, the Company adopted Financial Accounting Standards Board (FASB) Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (ASU 2013-02). ASU 2013-02 requires entities to disclose additional information about reclassification adjustments, including changes in accumulated other comprehensive income balances by component and significant items reclassified out of accumulated other comprehensive income. The Company has complied with this disclosure requirement, and as a result, the amendment did not change the items reported in its other comprehensive income (loss) or when an item of its other comprehensive income (loss) is reclassified to net income.

No other new accounting pronouncement issued or effective during the fiscal year had or is expected to have a material impact on the consolidated financial statements.

BUSINESS_DISPOSITION

BUSINESS DISPOSITION	12 Months Ended
BUSINESS DISPOSITION	Dec. 31, 2013
BUSINESS DISPOSITION	'
	3	BUSINESS DISPOSITION
	On April 30, 2013, the Company sold its global data business to GTT and, as a result, no longer provides data services. The transaction consisted of the Americas, EMEA and APAC reporting units’ data assets and liabilities. The Americas reporting unit of the global data business did not qualify for discontinued operations because it did not constitute a separate component of the Company. The data activity associated with the Americas reporting unit is reported in continuing operations in the consolidated statements of operations and consolidated balance sheets. The data activity associated with the EMEA and APAC reporting units is reflected in the consolidated statements of operations and in the consolidated balance sheets as discontinued operations. Historical information related to these reporting units has been reclassified accordingly.
	The Company sold its global data business for $54.5 million which consisted of $52.5 million in cash, subject to net working capital adjustments, and $2.0 million of non-cash commercial services to be provided by GTT to the Company over a three-year period. After an initial net working capital reduction of $3.3 million based on the balance sheet information as of March 31, 2013, the Company received $51.2 million of cash and non-cash services from GTT. Transaction costs and the additional net working capital adjustment, resulting from balance sheet changes during the month of April following the initial calculation, amounted to approximately $2.4 million and $1.0 million, respectively, reducing net cash and non-cash consideration to approximately $47.8 million. Of this amount, $43.5 million was allocated to the sale of the Americas reporting unit of the global data business and the remaining amount of $4.3 million was allocated to the EMEA and APAC reporting units of the global data business. The Company based its allocation of the $47.8 million amount based upon the relative percentage of the fair value of the Americas reporting unit and the EMEA and APAC reporting units, to the total fair value of these three reporting units combined.
	The Company and GTT disagree over the amount of the net working capital related to GTT’s purchase of the Company’s global data business. Pursuant to certain post-closing purchase price adjustment provisions in the agreement governing the sale of the Company’s global data business to GTT, GTT is claiming that the Company owes GTT $3.8 million. The Company, however, currently believes that GTT owes the Company $1.1 million. The parties are currently in discussions to resolve their differences with respect to the post-closing adjustments to the purchase price. If the parties are unable to resolve their differences through negotiations, a neutral third party accounting firm will hear and decide the matter. No reasonable estimate of the actual payment to be received from GTT or to be made to GTT associated with this matter is possible.
	Disposition Not Qualifying for Discontinued Operations
	The Americas reporting unit assets, which were sold as part of the sales of the global data business, had an approximate net book value of $14.7 million at the time of the sale. The purchase price allocation of $43.5 million for this portion of the global data business, less its net book basis of assets and liabilities yielded a gain from sale of $28.8 million.
	Discontinued Operations
	The net book basis of the assets and liabilities for the EMEA and APAC reporting units of the global data business at the date of sale was approximately $10.1 million. In addition, the Company is entitled to approximately $1.0 million of cash that remained with the EMEA and APAC reporting units of the global data business at the time of the transaction. The purchase price allocation of $4.3 million for this portion of the global data business plus the additional $1.0 million of cash yielded a loss on the sale from discontinued operations of $4.8 million.

	The following table displays summarized activity in the Company’s consolidated statements of operations for discontinued operations during the years ended December 31, 2013, 2012 and 2011.


	Years Ended December 31		2013			2012			2011
	Revenue		$	15,205		$	42,450		$	43,681
	Operating loss			(3,130	)		(41,633	)		(13,812	)
	Loss before provision for income taxes			(3,581	)		(41,946	)		(14,824	)
	Provision (benefit) for income tax			227			1,957			(1,776	)
	Loss from discontinued operations			(3,808	)		(43,903	)		(13,048	)
	Loss on sale of discontinued operations		$	(4,837	)	$	—		$	—
	The following table displays a summary of the assets and liabilities of discontinued operations as of December 31, 2012. The Company did not have any assets or liabilities of discontinued operations on its balance sheet as of December 31, 2013.


	December 31		2012
	Assets
	Accounts receivable		$	12,074
	Prepaid expenses			4,798
	Property and equipment—net			9,694
	Other assets			651

			$	27,217

	Liabilities
	Accounts payable		$	4,839
	Accrued liabilities			16,110
	Other liabilities			1,453

			$	22,402

PROPERTY_AND_EQUIPMENT

PROPERTY AND EQUIPMENT	12 Months Ended
PROPERTY AND EQUIPMENT	Dec. 31, 2013
PROPERTY AND EQUIPMENT	'
	4	PROPERTY AND EQUIPMENT
	Property and equipment as of December 31, 2013 and 2012 consist of the following:


	December 31		2013			2012
	Network equipment		$	31,670		$	34,223
	Computer software			2,492			4,358
	Computer equipment			1,411			894
	Tools and test equipment			450			450
	Furniture and fixtures			349			129
	Leasehold improvements			1,484			1,453
	Wireless equipment			6			—

				37,862			41,507
	Less accumulated depreciation			(14,766	)		(1,560	)

				23,096			39,948
	Construction in process			2,719			3,875

	Property and equipment-net		$	25,815		$	43,823


	The carrying value of long-lived assets, including amortizable intangible assets and property and equipment, are reviewed whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Factors that the Company considered in the fourth quarter of 2012 included (i) a decline in the Company’s common stock price beginning late in the third quarter of 2012 and sustained through the date of the 2012 Form 10-K filing, which required an increase in the discount rate used in the present value calculation in order to reconcile the Company’s market capitalization to the aggregate estimated fair value of all of the Company’s reporting units, and (ii) the carrier settlement that was settled in the fourth quarter 2012. The Company utilized Accounting Standards Codification 360 Property, Plant and Equipment (ASC 360) guidance to test the long-lived assets for realizability. The Company determined that the lowest level of its cash flow generation is its reporting units which are the Americas, EMEA and APAC. During ASC 360 Step 1, the Company compared the undiscounted cash flows attributable to each reporting unit over the projection period of five years based upon the estimated useful life of the primary asset group which was the Company’s property and equipment, plus an estimate of terminal value to its book value. The sum of the undiscounted cash flows was less than the carrying value of the net assets for each reporting unit. This indicated that the Company failed Step 1 and was required to complete Step 2 under ASC 360 guidance that would quantify the impairment amount. During ASC 360 Step 2 the Company fair valued the assets using three generally accepted approaches: the Cost, Income and Market Approaches. The established fair value of the assets is a Level 3 nonrecurring fair value measurement. As a result of the Step 2 analysis, the Company recorded a property and equipment impairment charge in each of its three reporting units, which in total resulted in a charge of $13.2 million. The Company recorded property and equipment impairment charges in each of our three reporting units, Americas, EMEA and APAC, in the amount of $4.9 million, $7.8 million and $0.5 million, respectively. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations. This impairment was allocated to the property and equipment on a pro-rata basis using the relative carrying amounts of these assets, except where such allocation would reduce the carrying value of the asset below its fair value.

RECEIVABLES

RECEIVABLES	12 Months Ended
RECEIVABLES	Dec. 31, 2013
RECEIVABLES	'
	5	RECEIVABLES
	Receivables as of December 31, 2013 and 2012 consist of the following:


	December 31		2013			2012
	Billed receivables		$	21,785		$	29,546
	Unbilled receivables			1,315			1,636

				23,100			31,182
	Less allowance for doubtful accounts			(900	)		(423	)

	Receivables—net of allowance for doubtful accounts		$	22,200		$	30,759

	The Company invoices customers for voice services occurring through the 24th of each month or the end of the month. For the customers with the billing cycle ending the 24th of each month the Company accrues revenue each month for voice services from the 25th through the end of the month resulting in unbilled receivables. The unbilled receivables at the end of each month are billed as part of the following month’s billing cycle.

FAIR_VALUE_MEASUREMENT

FAIR VALUE MEASUREMENT

12 Months Ended

Dec. 31, 2013

FAIR VALUE MEASUREMENT

The Company’s investment in three money market funds is recognized and disclosed at fair value in the financial statements on a recurring basis. Fair value is defined as the price that would be received to sell an asset in an orderly transaction between market participants as of the measurement date. Fair value is measured using the fair value hierarchy and related valuation methodologies as defined in the authoritative literature. This guidance specifies a hierarchy of valuation techniques based on whether the inputs to each measurement are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s assumptions about current market conditions. The prescribed fair value hierarchy and related valuation methodologies are as follows:

Level 1—Quoted prices for identical instruments in active markets.

Level 2—Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations, in which all significant inputs are observable in active markets.

Level 3—Valuations derived from valuation techniques, in which one or more significant inputs are unobservable.

The fair value of the Company’s financial assets by level in the fair value hierarchy as of December 31, 2013 and 2012 was as follows:

December 31, 2013

Level 1

Level 2

Level 3

Total

Assets:

Money Market Funds

41,827

—

41,827

December 31, 2012

Level 1

Level 2

Level 3

Total

Assets:

Money Market Funds

823

—

823

Valuation methodology

Level 1—Quoted market prices in active markets are available for investments in money market funds. As such, these investments are classified within Level 1.

401k_SAVINGS_PLAN

401(k) SAVINGS PLAN	12 Months Ended
	Dec. 31, 2013
401(k) SAVINGS PLAN	'
	7	401(k) SAVINGS PLAN
	The Company sponsors a 401(k) plan covering substantially all United States employees. The plan is a defined contribution savings plan in which employees may contribute up to 87% of their salary, subject to certain limitations. The Company may elect to make discretionary contributions into the Plan. The Company contributed $0.5 million to this plan during each of the years ended December 31, 2013, 2012 and 2011.

COMMON_STOCK

COMMON STOCK	12 Months Ended
	Dec. 31, 2013
COMMON STOCK	'
	8	COMMON STOCK
	The Company’s total authorized capital stock consists of 150,000,000 shares of common stock, par value $0.001 per share.
	Voting—Each holder of common stock has one vote in respect to each share of stock held on record for the election of directors and on all matters submitted to a vote of shareholders of the Company.
	Dividends—Subject to the preferential rights of any outstanding preferred stock, the holders of shares of common stock are entitled to receive, when and if declared by the Board of Directors, out of assets of the Company which are by law available therefore, dividends payable either in cash, in property or in shares of capital stock. On October 5, 2012, the Company declared a special cash dividend of $3.00 per outstanding share of common stock, or $96.7 million in the aggregate, which was paid on October 30, 2012 (the 2012 Special Dividend). On May 29, 2013, the Company declared a special cash dividend of $1.25 per outstanding share of common stock, or $40.5 million in the aggregate, which was paid on June 28, 2013 (the 2013 Special Dividend). On May 29, 2013, August 27, 2013 and December 4, 2013, the Company also announced the declaration of regular quarterly dividends of $0.0625 per outstanding share of common stock, which were paid on June 24, 2013, September 27, 2013 and December 30, 2013, respectively. In 2013 the Company paid $6.0 million as a result of regular quarterly dividends. Total 2013 aggregate dividend payments, inclusive of special cash dividend and regular quarterly dividends, of $46.5 million includes $0.6 million related to the expected forfeitures of non-vested shares that the Company has recognized as compensation expense.
	Liquidation—In the event of any liquidation, dissolution or winding up of the Company, after distribution in full of the preferential amounts, if any, to be distributed to the holders of shares of any outstanding preferred stock, holders of all common stock shares, including converted preferred stock, are entitled to receive all of the remaining assets of the Company of whatever kind available for distribution to shareholders ratably in proportion to the number of shares of common stock held by them respectively.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2013
COMMITMENTS AND CONTINGENCIES	'
	9	COMMITMENTS AND CONTINGENCIES
	Operating Leases—The Company leases its facilities and certain equipment under operating leases which expire through February 2025. Rental expense was $5.2 million for each of the years ended December 2013, 2012 and 2011.
	The following table represents future lease payments under the operating leases:


	December 31		2013
	2014		$	5,216
	2015			5,263
	2016			4,933
	2017			4,224
	2018			3,613
	Thereafter			11,607

	Total		$	34,856

	Legal Proceedings—From time to time, the Company is a party to legal proceedings arising in the normal course of its business. Aside from the matters discussed below, the Company does not believe that it is a party to any pending legal action that could reasonably be expected to have a material adverse effect on its business or operating results, financial position or cash flows.
	Customer Dispute
	The Company was engaged in a dispute with a carrier to which it provides certain voice services. The carrier is one of the Company’s largest customers and claimed the Company had been improperly billing a certain tariffed rate element. At the time the customer initiated the dispute, the customer alleged that the improper billings totaled over $6.0 million.
	On January 8, 2014, the Company and the customer settled the dispute. As part of the definitive settlement, the Company agreed to provide certain credits totaling approximately $5.0 million to the customer over an 18-month period beginning in January 2014. In exchange, the customer has agreed to send new revenue-generating traffic to the Company for a period of at least two years. The Company anticipates the revenue associated with the new traffic over this two-year period will largely offset or exceed the credits provided to the customer. The Company did not record in its financial statements any amount related to this agreement.
	Internal Investigation
	During the year ended December 31, 2012, the Company reported a $75.3 million impairment of goodwill and other intangibles charge, a $13.2 million impairment of fixed assets charge, and a net loss of $78.1 million. During the second quarter of 2013, the Board of Directors of the Company determined that an internal investigation of whether such impairment charge was overstated should be undertaken by the Audit Committee with the assistance of independent outside professionals. During the same time period, the Board of Directors also determined that the Audit Committee, with the assistance of independent outside professionals, should conduct an internal investigation of the Company’s financial forecasting practices during the fourth quarter of 2012 and the first quarter of 2013.
	On August 23, 2013, the Company announced that the Audit Committee completed its investigation. With the assistance of independent outside professionals, the Audit Committee found that no restatement of the Company’s previously issued financial statements nor any action relating to the Company’s previous financial forecasts is required. During the year ended December 31, 2013, the Company incurred approximately $2.4 million of professional and legal expenses related to the investigation and reported this amount as part of general and administrative expense within its condensed consolidated statements of operations.
	As a result of the internal investigation described above, on August 12, 2013, the Company submitted to the Securities and Exchange Commission a Notification of Late Filing pursuant to Rule 12b-25 of the Exchange Act in respect of the Quarterly Report on Form 10-Q for the period ended June 30, 2013. On August 13, 2013, the Company received a deficiency letter from The Nasdaq Stock Market LLC, stating that the Company was not in compliance with Nasdaq Listing Rule 5250(c)(1) for failure to timely file the Quarterly Report on Form 10-Q for the period ended June 30, 2013. On August 29, 2013, the Company received a letter from The Nasdaq Stock Market LLC, informing the Company that it had regained compliance with Nasdaq’s continued listing standards. The late filing of the Quarterly Report on Form 10-Q for the period ended June 30, 2013, has adversely affected the Company’s eligibility to use Registration Statements on Form S-3 for registration of its securities with the Securities and Exchange Commission. Use of Form S-3 requires, among other things, that the issuer be current and timely in its reports under the Exchange Act for at least twelve months. Because of the Company’s inability to use Form S-3, the Company will have to meet more demanding requirements to register additional securities, which could make it more difficult for the Company to effect public offering transactions, and the Company’s range of available financing alternatives could also be narrowed.
	Federal Securities Class Action
	On August 9, 2013, a federal securities class action lawsuit was filed against the Company in the United States District Court for the Northern District of Illinois (Tamara Holding Ltd., individually and on behalf of All Other Persons Similarly Situated v. Inteliquent, Inc., f/k/a Neutral Tandem Inc., G. Edward Evans, Robert Junkroski, and David Zwick, 13-CV-5701). The plaintiff alleged violations of Sections 10(b) and 20(a) of the Exchange Act and Rule 10b-5 promulgated thereunder relating to the matters addressed in the Audit Committee’s internal investigation. On January 6, 2014, the plaintiff voluntarily dismissed the lawsuit without prejudice.
	Municipal Audit
	The Company is sometimes subject to examination by various local authorities. These examinations may relate to property taxes, use taxes or other telecommunications taxes. The Company is currently working to resolve one municipal audit in which the Company received a telecommunications tax assessment for approximately $1.0 million. By providing the necessary reseller certificates, the Company believes that there will be no tax liability, and as a result, it did not record in its financial statements any amount related to this contingency.

GOODWILL_AND_INTANGIBLES_NET

GOODWILL AND INTANGIBLES, NET

12 Months Ended

Dec. 31, 2013

GOODWILL AND INTANGIBLES, NET

Goodwill

Goodwill was recognized in 2010 as a result of the acquisition of Tinet. In October 2011, the Company established the Americas, EMEA and APAC reporting units as part of an internal reorganization. Before October 2011, the Company operated as one reporting unit.

The following table displays a roll forward of the carrying amount of Americas reporting unit goodwill from January 1, 2012 to December 31, 2012:

Total

Balance at December 31, 2011

43,266

Impairment charges

(44,543

)

Translation and other

1,277

Balance at December 31, 2012

—

Before 2013, the Company conducted its annual assessment of goodwill for impairment in the fourth quarter of each year. The goodwill impairment test was performed at the reporting unit level. A reporting unit is an operating segment or one level below an operating segment. The Company’s reporting units were the Americas, EMEA and APAC. The evaluation of goodwill was based upon the estimated fair value of the Company’s reporting units compared to the net carrying value of assets and liabilities. The Company used internal discounted cash flow estimates and market value comparisons to determine estimated fair value. If this first test indicates that impairment potentially exists, the second step is performed to measure the amount of impairment, if any. Goodwill impairment exists when the estimated implied fair value of goodwill, a non-recurring Level 3 fair value measurement, is less than its carrying value.

The goodwill impairment testing process involves the use of significant assumptions, estimates and judgments, and is subject to inherent uncertainties and subjectivity in determination of the fair value of the reporting units in Step 1, and, if necessary in Step 2, the allocation of the fair value to identifiable assets and liabilities. Estimating a reporting unit’s projected cash flows involves the use of significant assumptions, estimates and judgments with respect to numerous factors, including long-term rate of revenue growth, operating margin, including operating, sales and marketing, general and administrative expense rates, capital expenditures and allocation of shared or corporate items, among other factors. These estimates were based on internal operating plans and long-term forecasts for each reporting unit. These projected cash flow estimates were then discounted, which necessitated the selection of an appropriate discount rate. The discount rates selected reflected market-based estimates of the risks associated with the projected cash flows of the reporting unit. The market value comparisons of fair value required the selection of appropriate peer group companies. In addition, the Company analyzed differences between the sum of the fair value of the reporting units and its total market capitalization for reasonableness, taking into account certain factors including control premiums. In Step 2, the fair value allocation required several analyses to determine the fair value of assets and liabilities including, among others, customer relationships and property, plant and equipment.

Based on the analysis discussed above, the Company recorded goodwill impairment in each of our three reporting units, Americas, EMEA and APAC, in the amount of $44.5 million, $4.5 million and $0.5 million, respectively, which in total, resulted in a charge of $49.5 million. As a result of these charges there is no goodwill being carried at the Company’s consolidated balance sheet as of December 31, 2013 and 2012. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations.

Intangible Assets, Net

Intangible assets and accumulated amortization, excluding goodwill, consist of the following:

2012

December 31

Gross

Accumulated

Impairment

Carrying

Amortization

Loss

Amount

Intangible assets:

Customer relationships

20,677

3,359

17,318

20,677

3,359

17,318

As a result of the long-lived assets impairment test further described in Note 4 “Property and Equipment”, as part of the ASC 360 Step 2, the Company determined the fair value of its intangible assets. The Company applied the Excess Earnings Method, a form of the Income Approach, to estimate the value of the customer based intangible assets. This value is a level 3 nonrecurring fair value measurement. Inputs to this approach are the sum of the cash flows solely attributable to the customer based intangible asset discounted at a rate that considered the weighted average cost of capital and the required rate of return on other asset classes. Based on the analysis the Company concluded that the intangible assets had no value and accordingly the impairment charge of $25.8 million was recorded. The Company recorded intangible assets impairment charges in each of our three reporting units, Americas, EMEA and APAC, in the amount of $17.3 million, $7.7 million and $0.8 million, respectively. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations. As a result of these charges, there is no intangible asset being carried at the Company’s consolidated balance sheet as of December 31, 2013 and 2012. Prior to the impairment charges the intangible assets, which consisted of customer relationships, had a definite life and were amortized on an accelerated basis based on the discounted cash flows recognized over their estimated useful lives (15 years). Intangible asset amortization expense was $1.5 million in 2012.

Factors that led to the impairments of both goodwill and intangible assets are the same as those previously described in Note 4 “Property and Equipment”.

CREDIT_FACILITY

CREDIT FACILITY	12 Months Ended
CREDIT FACILITY	Dec. 31, 2013
CREDIT FACILITY	'
	11. CREDIT FACILITY
	On March 5, 2013, the Company entered into a $15.0 million revolving credit facility. The credit facility has a term of three years and an interest rate of LIBOR + 3.25%. The Company may borrow under the revolving credit facility and use the funds for general corporate purposes. There were no obligations outstanding under the revolving credit facility at any time during the year ended December 31, 2013. As of December 31, 2013, the Company is in compliance with all of the covenants of the credit facility agreement.

INCOME_TAXES

INCOME TAXES	12 Months Ended
INCOME TAXES	Dec. 31, 2013
INCOME TAXES	'
	12	INCOME TAXES
	Income (loss) before provision for income taxes, and the related provision for income taxes, for the years ended December 31 2013, 2012 and 2011, were as follows:


	Years Ended December 31		2013				2012			2011
	Income (loss) before provision for income taxes		$	77,822			$	(32,288	)	$	60,613


	Provision for income taxes
	Current:
	Federal			15,391				8,864			17,910
	State			428				1,414			2,477
	Foreign			—				—			3,080

	Total current			15,819				10,278			23,467

	Deferred (prepaid):
	Federal			(1,713	)			(5,817	)		(1,343	)
	State			(582	)			1,934			(1,616	)
	Foreign			—				(4,437	)		—

	Total deferred			(2,295	)			(8,320	)		(2,959	)

	Total provision for income taxes		$	13,524			$	1,958		$	20,508

	The Company’s effective income tax rate was 17.4% for the year ended December 31, 2013, compared to (6.1) % for the year ended December 31, 2012. This difference in rates results primarily due to the sale of the global data business during the year ended December 31, 2013 and the impact of the goodwill impairment during the year ended December 31, 2012. The change in the effective tax rate of (6.1)% for the year ended December 31, 2012, compared to 33.8% for the year ended December 31, 2011 was predominantly attributable to the goodwill impairment during the year ended December 31, 2012.
	A reconciliation of the federal statutory rate to our effective tax rate is as follows:


	December 31		2013				2012			2011
	Statutory federal rate			35.00%				35.00%			35.00%
	State income tax, net of federal benefit			3.20%				2.1 %			3.10%
	Illinois state EDGE credit net of valuation allowance			-1.00%				-4.70%			-1.60%
	Transaction costs			—				—			-0.60%
	Impact of sale of global data business			-15.50%				—			—
	Goodwill impairment			—				-52.50%			—
	Americas Data assets allocation			-4.70%				15.70%			-1.90%
	Other			0.40%				-1.70%			-0.20%

	Effective income tax rate			17.40%				-6.10%			33.80%


	Deferred income taxes reflect the net tax effects of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred income taxes are as follows:


	December 31		2013				2012
	Deferred tax assets and liabilities
	Deferred tax assets:
	Stock option compensation		$	9,084			$	9,667
	State credit carry forward			2,577				2,211
	Accrued direct costs			413				816
	State bonus depreciation			302				505
	Accrued other			1,769				980
	Capital loss on sale of Tinet stock			21,405				—
	Goodwill			—				591

	Total deferred tax assets			35,550				14,770

	Deferred tax liabilities:
	Depreciation			(5,091	)			(7,899	)
	Prepaids			(800	)			(740	)

	Total deferred tax liabilities			(5,891	)			(8,639	)

Subtotal			29,659				6,131
Valuation allowance			(23,444	)			(2,211	)

Net deferred income tax asset		$	6,215			$	3,920

The Company evaluates its deferred income taxes quarterly to determine if a valuation allowance is required or should be adjusted. The Company assesses whether a valuation allowance should be established against deferred tax assets based upon consideration of all available evidence, both positive and negative, using a more likely than not standard. This assessment considers, among other matters, forecasts of future profitability, the duration of statutory carry-forward periods, the Company’s experience with tax attributes expiring unused and tax planning alternatives. In making such judgments, significant weight is given to evidence that can be objectively verified.
A valuation allowance has been established against the deferred tax asset resulting from the sale of Tinet stock and a partial valuation allowance has been established against the deferred income tax asset related to the Illinois EDGE credit. The valuation allowance of $21.1 million was established for the deferred tax asset related to the capital loss from the sale of Tinet stock after weighing all available evidence, both positive and negative, including the potential for the Company to have sufficient capital gains to be offset by the capital losses during the five year carryforward period. The Company’s Illinois EDGE credit can also be carried forward five years. During the year ended December 31, 2013, the Company released $0.5 million of the valuation allowance related to the Illinois EDGE credit. The Company now has a partial valuation allowance of $2.0 million for the Illinois EDGE credit deferred income tax asset as the Company believes it was more likely than not that future taxable income will be insufficient to realize the full benefit of the credit.
The Company files income tax returns in the U.S. federal jurisdiction, various states and local jurisdictions and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2010. The IRS has completed an examination of the federal income tax return the Company filed for the year 2008. The IRS did not propose any adjustments to the Company’s 2008 income tax return.

The Company’s liabilities for uncertain tax positions totaled less than $0.1 million at December 31, 2013 and $1.8 million at December 31, 2012. This difference results from the sale of the global data business. A reconciliation of the beginning and ending amount of uncertain tax positions is as follows


		2013				2012
Balance at January 1		$	1,839			$	597
Increases related to prior periods			10				1,301
Increases related to current year			—				194
Decreases related to settlements with taxing authorities			—				(253	)
Decreases related to sale of the global data business			(1,809	)			—

Balance on December 31		$	40			$	1,839

The Company recognizes accrued interest and penalties related to its unrecognized tax benefits as income tax expense.

STOCK_OPTIONS_AND_NONVESTED_SH

STOCK OPTIONS AND NON-VESTED SHARES	12 Months Ended
STOCK OPTIONS AND NON-VESTED SHARES	Dec. 31, 2013
STOCK OPTIONS AND NON-VESTED SHARES	'
	13	STOCK OPTIONS AND NON-VESTED SHARES
	The Company established the 2003 Stock Option and Stock Incentive Plan (2003 Plan), which provided for issuance of up to 4.7 million options and non-vested shares to eligible employees, officers, and independent contractors of the Company. In 2007 the Company adopted the Neutral Tandem, Inc. 2007 Long-Term Equity Incentive Plan (2007 Plan) and ceased awarding equity grants under the 2003 plan. As of December 31, 2013, the Company had granted a total of 3.0 million options and 0.5 million non-vested shares that remained outstanding under the 2007 Plan. Awards for 1.0 million shares, representing approximately 3.2% of the Company’s outstanding common stock as of December 31, 2013, remained available for additional grants under the 2007 Plan.
	In connection with the 2013 Special Dividend, to compensate holders of outstanding options for the reduction in the Company’s stock price that resulted from the payment of the 2013 Special Dividend, the Company’s Compensation Committee approved (i) an adjustment to the exercise price of outstanding options, subject to the limitations of Section 409A of the Internal Revenue Code, and (ii) the issuance of non-vested shares (available for issuance under the 2007 Plan) to holders of outstanding options with exercise prices that could not be fully adjusted because of the limitations of Section 409A of the Internal Revenue Code. The effect of the exercise price adjustment and the issuance of non-vested shares, taken together, was to provide each optionholder with the same economic value after the time that the Company’s common stock began trading ex-dividend as such optionholder had immediately prior to such time. As a result of these adjustments, the exercise price of the 3.5 million outstanding options under the Plans was reduced by an average of $1.08 per option, and the Company issued 0.1 million non-vested shares under the 2007 Plan to make optionholders whole.
	In 2012, the 2003 Plan was amended in connection with the 2012 Special Dividend to provide that, in order to prevent an extraordinary cash dividend like the 2012 Special Dividend from diluting the rights of optionholders, the Company’s Compensation Committee shall have the discretion to reduce the exercise price of outstanding options so long as any such adjustment does not increase the intrinsic value of any such option, as measured prior to the ex-dividend date of such extraordinary cash dividend. As a result of the amendment, the Company recognized $0.3 million of non-cash share-based compensation expense in 2013 in connection with 2013 Special Dividend. The options under the 2007 Plan were modified by the mandated antidilutive provisions contained in the 2007 Plan, and as a result, no additional non-cash share-based compensation expense was required to be recognized.
	The Company records stock-based compensation expense in connection with any grant of options and non-vested shares to its employees. The Company calculates the expense associated with its stock options and non-vested shares by determining the fair value of the options and non-vested shares.

	Options
	All options granted under the 2003 Plan and the 2007 Plan have an exercise price equal to the market value of the underlying common stock on the date of the grant. During the years ended December 31, 2013 and 2012, the Company granted 0.7 million and 0.2 million options at a weighted-average exercise price of $3.40 and $2.48, respectively.
	The fair value of each option granted is estimated on the date of grant using the Black- Scholes option-pricing model. For the years ended December 31, 2013, 2012 and 2011, fair value of stock options was measured using the following assumptions:


	Years Ended December 31		2013		2012	2011
	Expected life		7.3 years		7.24 years	7.13 years
	Risk-free interest rate range		1.30%		1.1% – 1.6%	1.3% – 2.9%
	Expected dividends		—		—	—
	Volatility		45.00%		50.5% – 55.9%	50.1% – 51.9%
	The weighted-average fair value of options granted, as determined by using the Black-Scholes valuation model, during the period was $1.64, $1.40 and $7.82 for the years ended December 31, 2013, 2012 and 2011, respectively. The total grant date fair value of options that vested during years ended December 31, 2013, 2012 and 2011 was approximately $2.4 million, $6.1 million and $7.7 million, respectively. The total intrinsic value (market value of stock less option exercise price) of stock options exercised was $0.9 million, $4.4 million and $1.1 million during the years ended December 31, 2013, 2012 and 2011, respectively.
	The following summarizes activity under the Company’s stock option plan:


			Shares			Wtd. Avg.		Aggregate		Wtd. Avg.
			0			Exercise		Intrinsic		Remaining
						Price		Value		Term (yrs)
	Options outstanding—December 31, 2011			3,520		$	16.09
	Granted			180			2.48
	Exercised			(508	)		2.75
	Cancelled			(100	)		19.16

	Options outstanding—December 31, 2012			3,092		$	14.64
	Granted			716			3.4
	Exercised			(206	)		2.02
	Cancelled			(611	)		7.94

	Options outstanding—December 31, 2013			2,991		$	12.91	$	5,964		5.92
	Vested or expected to vest-December 31, 2013			2,973		$	12.97	$	5,817		5.9
	Exercisable-December 31, 2013			2,294		$	15.57	$	890		5.04
	The unrecognized compensation cost associated with options outstanding at December 31, 2013 and 2012 is $1.7 million and $3.6 million, respectively. The weighted average remaining term that the compensation will be recorded is 2.1 years and 1.8 years as of December 31, 2013 and 2012, respectively.
	Non-vested Shares
	During the years ended December 31, 2013 and 2012, the Company’s Board of Directors granted approximately 0.3 million and 0.6 million non-vested shares, respectively, to members of the Company’s executive management team as well as various employees within the Company. The non-vested shares were issued as part of the 2007 Plan. The shares typically vest over a four-year period. The fair value of the non-vested shares is determined using the Company’s closing stock price on the grant date. Compensation cost, measured using the grant date fair value, is recognized over the requisite service period on a straight-line basis.

	A summary of the Company’s non-vested share activity and related information for the year ended December 31, 2013 and 2012 is as follows:


			Shares			Wtd. Avg.		Aggregate
			0			Grant		Intrinsic
						Date Fair		Value
						Value
	Non-vested shares outstanding at December 31, 2011			1,096		$	14.47
	Granted			603			7.16
	Vested			(722	)		12.43
	Cancelled			(131	)		12.48

	Non-vested shares outstanding at December 31, 2012			846		$	11.31
	Granted			332			5.5
	Vested			(442	)		11.45
	Cancelled			(259	)		6.79

	Non-vested shares outstanding at December 31, 2013			477		$	9.66	$	5,443
	Non-vested shares vested or expected to vest at December 31, 2013			444		$	9.66	$	5,066
	The aggregate intrinsic value represents the total pre-tax intrinsic value based on the Company’s closing stock price of $11.41 on December 31, 2013. The amount changes based upon the fair market value of the Company’s common stock.
	The unrecognized compensation cost associated with non-vested shares at December 31, 2013 and 2012 was $3.9 million and $8.4 million, respectively. The weighted average remaining term that the compensation will be recorded is 1.7 years and 2.3 years as of December 31, 2013 and 2012, respectively.
	During the third quarter ended September 30, 2012, two executives announced their decisions to step down from their executive positions with the Company on October 1, 2012. During the fourth quarter of 2012, the Board approved the acceleration of the vesting of some non-vested shares and options outstanding for both individuals. Non cash compensation expense of $6.2 million recorded during the year ended December 31, 2013 included $2.4 million related to non-vested restricted shares and $3.8 million related to options. Non-cash compensation expense of $13.2 million recorded during the year ended December 31, 2012 included $0.5 million related to the acceleration of options, $2.1 million related to the acceleration of non-vested restricted shares, $0.4 million related to the 2003 Plan modification and $0.1 million related to the extension of time in which options can be exercised.

SEGMENT_AND_GEOGRAPHIC_INFORMA

SEGMENT AND GEOGRAPHIC INFORMATION	12 Months Ended
SEGMENT AND GEOGRAPHIC INFORMATION	Dec. 31, 2013
SEGMENT AND GEOGRAPHIC INFORMATION	'
	14	SEGMENT AND GEOGRAPHIC INFORMATION
	Segment Reporting establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance.
	The Company’s chief operating decision maker is the Chief Executive Officer. The Chief Executive Officer reviews financial information presented on a consolidated basis. The Company operates in one industry segment, which is to provide voice interconnection services via the Company’s international telecommunications network to fulfill customer agreements. Therefore, the Company has concluded that it has one operating segment.

	The following is a summary of geographical information as of and for the year ended December 31, 2013, 2012 and 2011:


	Years Ended December 31		2013		2012		2011
	Revenue from external customers:
	United States of America		$	209,310	$	224,931	$	216,270
	Other countries within Americas reporting unit			2,351		8,072		8,333

			$	211,661	$	233,003	$	224,603

	Long-lived assets:
	United States of America		$	25,660	$	43,823	$	54,047
	Other countries			155		—		—

			$	25,815	$	43,823	$	54,047

	The Company includes property and equipment in its long-lived assets.

QUARTERLY_FINANCIAL_DATA_UNAUD

QUARTERLY FINANCIAL DATA (UNAUDITED)	12 Months Ended
QUARTERLY FINANCIAL DATA (UNAUDITED)	Dec. 31, 2013
QUARTERLY FINANCIAL DATA (UNAUDITED)	'
	15	QUARTERLY FINANCIAL DATA (UNAUDITED)


			2013
			1st (1)				2nd				3rd				4th
	Operating Results:
	Revenue		$	59,288			$	53,449			$	50,396			$	48,528
	Operating expense:
	Network and facilities expense (excluding depreciation and amortization)			24,636				24,053				22,027				24,151
	Operations			7,798				7,508				7,182				6,107
	Sales and marketing			2,034				1,526				1,090				904
	General and administrative			4,499				4,535				6,071				3,667
	Depreciation and amortization			4,513				3,699				3,293				3,147
	Loss (gain) on sale of assets			—				223				3				(34	)
	Gain on sale of Americas Data assets			—				(23,171	)			—				(5,620	)

	Total operating expense			43,480				18,373				39,666				32,322

	Income from operations			15,808				35,076				10,730				16,206

	Other income (expense)
	Interest income (expense)			39				13				1				(47	)
	Other income (expense)			(5	)			4				(4	)			1

	Total other income (expense)			34				17				(3	)			(46	)

	Income from continuing operations before provision for income taxes			15,842				35,093				10,727				16,160
	Provision for income taxes			3,606				741				4,177				5,000

	Income from continuing operations			12,236				34,352				6,550				11,160
	Income (loss) from discontinued operations, net of provision for income taxes (3)			(5,336	)			(1,698	)			(68	)			3,294
	Gain (loss) on sale of discontinued operations, net of provision for income taxes			—				794				(11	)			(5,620	)

	Net income		$	6,900			$	33,448			$	6,471			$	8,834

	Per Share Data:
	Earnings per common share-continuing operations-basic		$	0.38			$	1.05			$	0.2			$	0.35
	Earnings per common share-continuing operations-diluted		$	0.38			$	1.05			$	0.2			$	0.34
	Loss per common share-discontinued operations-basic (3)		$	(0.17	)		$	(0.03	)		$	—			$	(0.07	)
	Loss per common share-discontinued operations-diluted (3)		$	(0.16	)		$	(0.03	)		$	—			$	(0.07	)
	Earnings per common share-net income-basic (3)		$	0.21			$	1.02			$	0.2			$	0.27
	Earnings per common share-net income-diluted (3)		$	0.21			$	1.02			$	0.2			$	0.27
	Weighted average number of shares outstanding-basic			32,337				31,629				32,262				32,194
	Weighted average number of shares outstanding-diluted			32,453				31,629				32,557				32,501
			2012
			1st (1)				2nd				3rd				4th
	Operating Results:
	Revenue		$	60,887			$	58,262			$	59,573			$	54,281
	Operating expense:
	Network and facilities expense (excluding depreciation and amortization)			23,969				22,966				25,546				26,277
	Operations			8,794				8,674				10,312				9,701
	Sales and marketing			2,181				1,997				2,017				1,837
	General and administrative			5,249				5,702				3,850				6,368
	Depreciation and amortization			5,319				5,371				5,544				5,103
	Carrier Settlement			—				—				9,000				—
	Impairment of fixed assets			—				—				1,257				6,588
	Impairment of goodwill			—				—				—				44,543
	Impairment of intangibles			—				—				—				17,318
	Gain on sale of assets			(109	)			(4	)			(55	)			(2	)

	Total operating expense			45,403				44,706				57,471				117,733

	Income (loss) from operations			15,484				13,556				2,102				(63,452	)

Other income (expense)
Interest income (expense)			41				49				42				(111	)
Other income			—				1				—				—

Total other income (expense)			41				50				42				(111	)

Income (loss) from continuing operations before provision for income taxes			15,525				13,606				2,144				(63,563	)
Provision (benefit) for income taxes			3,745				2,933				(3,596	)			(1,124	)

Income (loss) from continuing operations			11,780				10,673				5,740				(62,439	)
Loss from discontinued operations, net of provision for income taxes (2)			(5,125	)			(6,967	)			(8,475	)			(23,336	)

Net income (loss)		$	6,655			$	3,706			$	(2,735	)		$	(85,775	)

Per Share Data:
Earnings (loss) per common share-continuing operations-basic		$	0.37			$	0.34			$	0.18			$	(1.99	)
Earnings (loss) per common share-continuing operations-diluted		$	0.37			$	0.34			$	0.18			$	(1.99	)
Loss per common share-discontinued operations-basic (2)		$	(0.16	)		$	(0.22	)		$	(0.27	)		$	(0.74	)
Loss per common share-discontinued operations-diluted (2)		$	(0.16	)		$	(0.22	)		$	(0.27	)		$	(0.74	)
Earnings (loss) per common share-net income (loss)-basic (2)		$	0.21			$	0.12			$	(0.09	)		$	(2.74	)
Earnings (loss) per common share-net income (loss)-diluted (2)		$	0.21			$	0.12			$	(0.09	)		$	(2.74	)
Weighted average number of shares outstanding-basic			31,664				31,791				31,993				31,352
Weighted average number of shares outstanding-diluted			32,058				32,178				31,993				31,352

-1	Certain amounts in prior years’ financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.
-2	Loss from discontinued operations for the three months ended December 31, 2012 includes a total $21.8 million charge for goodwill, intangible assets and fixed assets impairments.
-3	Loss from discontinued operations, net of provision for income taxes for the three months ended June 30, 2013 includes only one month of activity as compared to the three months in all preceding three month periods.

Schedule_II_Valuation_and_Qual

Schedule II: Valuation and Qualifying Accounts	12 Months Ended
Schedule II: Valuation and Qualifying Accounts	Dec. 31, 2013
Schedule II: Valuation and Qualifying Accounts	'
	Schedule II: Valuation and Qualifying Accounts
	The following table presents the valuation and qualifying account activity for the years ended December 31, 2013, 2012 and 2011:


	(In thousands)	Balance at		Charged to		Used			Balance at
	(In thousands)	January 1		Earnings		Used			December 31
	2013
	Allowance for doubtful accounts	$	423	$	900	$	(423	)	$	900
	2012
	Allowance for doubtful accounts	$	1,015	$	423	$	(1,015	)	$	423
	2011
	Allowance for doubtful accounts	$	—	$	1,015	$	—		$	1,015

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2013
Principles of Consolidation	'
Principles of Consolidation	Principles of Consolidation—The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Changes in Presentation	'
Changes in Presentation	Changes in Presentation—On April 30, 2013, the Company sold its global data business to GTT for $54.5 million, subject to certain adjustments. The Company determined that the appropriate level in which to assess discontinued operations was at its reporting unit level. As such, the Company’s Europe, Middle East and Africa (EMEA) and Asia Pacific (APAC) reporting units of the global data business consist of results of operations and cash flows that can be clearly distinguished from the rest of the entity and are therefore reflected in the consolidated statements of operations and in the consolidated balance sheets as discontinued operations. Historical information related to these reporting units have been reclassified accordingly. The Americas reporting unit of the global data business does not consist of results of operations and cash flows that can be clearly distinguished, operationally and for financial reporting purposes, from the rest of the entity. This reporting unit does not qualify for discontinued operations accounting treatment. Therefore, the Americas reporting unit of the global data business is reported in continuing operations in the consolidated statements of operations and in the consolidated balance sheets. Refer to Note 3 “Business Disposition” for more information regarding the sale of the global data business.
Use of Estimates	'
Use of Estimates	Use of Estimates—The Company’s consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America. These accounting principles require management to make certain estimates and assumptions that can affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the periods presented. The Company believes that the estimates and assumptions upon which it relies are reasonable based upon information available to it at the time that these estimates and assumptions are made. To the extent there are material differences between these estimates and actual results, the Company’s consolidated financial statements will be affected.
Cash and Cash Equivalents	'
Cash and Cash Equivalents	Cash and Cash Equivalents—The Company considers all highly liquid investments with an original maturity of 90 days or less to be cash equivalents. The carrying values of our cash and cash equivalents approximate fair value. At December 31, 2013 the Company had $35.2 million of cash in banks and $41.8 million in three money market funds. At December 31, 2012, the Company had $30.7 million of cash in banks and $0.8 million in two money market funds.
Fair Value Measurements	'
	Fair Value Measurements—Certain assets and liabilities are required to be recorded at fair value on a recurring basis. Fair value is determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. Assets measured at fair value on a nonrecurring basis include long-lived assets held and used, long-lived assets held for sale, goodwill and other intangible assets. The fair value of cash and cash equivalents, accounts receivable and accounts payable approximate their carrying values. The three-tier value hierarchy, which prioritizes valuation methodologies based on the reliability of the inputs, is:
	Level 1—Valuations based on quoted prices for identical assets and liabilities in active markets.
	Level 2—Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.
	Level 3—Valuations based on unobservable inputs reflecting the Company’s own assumptions, consistent with reasonably available assumptions made by other market participants.
Property and Equipment	'
Property and Equipment	Property and Equipment— Property and equipment is recorded at cost. These values are depreciated over the estimated useful lives of the individual assets using the straight-line method. Any gains and losses from the disposition of property and equipment are included in operations as incurred. The estimated useful life for network equipment and tools and test equipment is five years. The estimated useful life for computer equipment, computer software and furniture and fixtures is three years. Leasehold improvements are amortized on a straight-line basis over an estimated useful life of five years or the life of the lease, whichever is less. As discussed in further detail below, the impairment of long-lived assets is evaluated when events or changes in circumstances indicate that a potential impairment has occurred.
Long-lived Assets	'
	Long-lived Assets—The carrying value of long-lived assets, including property and equipment, are reviewed whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. Impairment of assets with definite lives is generally determined by comparing projected undiscounted cash flows to be generated by the asset, or appropriate grouping of assets, to its carrying value. If an impairment is identified, a loss is recorded equal to the excess of the asset’s net book value over its fair value. The fair value is the new cost basis of the asset. Determining the extent of an impairment, if any, typically requires various estimates and assumptions including using management’s judgment, cash flows directly attributable to the asset, the useful life of the asset and residual value, if any. In addition, the remaining useful life of the impaired asset is revised, if necessary. There were no property and equipment and intangible asset impairment charges in 2013 or 2011.
	During the year ended December 31, 2012, the Company recorded property and equipment and intangible assets impairment charges of $13.2 million and $25.8 million, respectively, as a result of an impairment test performed during fourth quarter of 2012. The Company recorded property and equipment impairment charges in each of its three reporting units, Americas, EMEA and APAC, in the amount of $4.9 million, $7.8 million and $0.5 million, respectively. The Company recorded intangible assets impairment charges in each of our three reporting units, Americas, EMEA and APAC, in the amount of $17.3 million, $7.7 million and $0.8 million, respectively. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations. The results of the test are further described in Note 4 “Property and Equipment” and Note 10 “Goodwill and Intangibles, Net”. In addition, the Company ceased its hosted services offering during the year-ended December 31, 2012. As the equipment had no further use in the Company’s network the Company recorded an asset impairment charge of $2.9 million to write-off the related assets.
Goodwill	'
	Goodwill—Goodwill represents the excess of the purchase price of an acquired business over the fair value of assets and liabilities assumed in the business combination. Goodwill is not amortized. Goodwill is reviewed for impairment at least annually, or when events and circumstances indicate that it is more likely than not that the fair value of the reporting unit is less than its carrying value. The Company compares each reporting unit’s fair value, by considering comparable company market valuations and estimating expected future discounted cash flows to be generated by the reporting unit, to its carrying value. If the carrying value exceeds the reporting unit’s fair value, the Company performs an additional fair value measurement calculation to determine the impairment loss. The amount of impairment is determined by comparing the implied fair value of reporting unit goodwill to the carrying value of the goodwill.
	During the year ended December 31, 2012 the Company recorded goodwill impairment charges in each of its three reporting units, Americas, EMEA and APAC, in the amount of $44.5 million, $4.5 million and $0.5 million, respectively, which in total, resulted in a charge of $49.5 million. See Note 10 “Goodwill and Intangibles, Net”. The amounts related to EMEA and APAC are recorded as part of discontinued operations in the 2012 consolidated statement of operations and the amount related to Americas is recorded as part of continuing operations in the 2012 consolidated statement of operations.
Revenue Recognition	'
	Revenue Recognition—The Company generates revenue from sales of its voice services. The Company maintains tariffs and executed service agreements with each of its customers in which specific fees and rates are determined. Voice revenue is recorded each month on an accrual basis based upon minutes of traffic switched by the Company’s network by each customer, which is referred to as minutes of use. The rates charged per minute are determined by contracts between the Company and its customers, or by filed and effective tariffs.
	Prior to the sale of the Company’s global data business IP Transit and Ethernet services revenues related to the Company’s Americas reporting unit for the first four months of 2013 were recorded each month on an accrual basis based upon bandwidth used by each customer. The rates charged were the total of a monthly fee for bandwidth (the Committed Traffic Rate) plus additional charges for the sustained peak bandwidth used monthly in excess of the Committed Traffic Rate.
Earnings (Loss) Per Share	'
	Earnings (Loss) Per Share—Basic earnings (loss) per share is computed based on the weighted average number of common shares and participating securities outstanding. Diluted earnings (loss) per share is computed based on the weighted average number of common shares and participating securities outstanding adjusted by the number of additional shares that would have been outstanding during the period had the potentially dilutive securities been issued.

	The following table presents a reconciliation of the numerators and denominators of basic and diluted earnings (loss) per share of common stock:


	Years ended December 31	2013			2012			2011
	Numerator:
	Income (loss) from continuing operations	$	64,298		$	(34,246	)	$	40,105
	Loss from discontinued operations, net of provision for income taxes		(3,808	)		(43,903	)		(13,048	)
	Loss on sale of discontinued operations, net of provision for income taxes		(4,837	)		—			—

	Net income (loss)	$	55,653		$	(78,149	)	$	27,057

	Denominator:
	Weighted average common shares outstanding		32,306			30,798			32,780
	Effect of dilutive securities:
	Stock options and non-vested shares		251			—			415

	Denominator for diluted earnings per share		32,557			30,798			33,195

	Earnings (loss) per share—continuing operations:
	Basic	$	1.99		$	(1.11	)	$	1.22
	Diluted	$	1.97		$	(1.11	)	$	1.21
	Loss per share—discontinued operations:
	Basic	$	(0.27	)	$	(1.43	)	$	(0.40	)
	Diluted	$	(0.27	)	$	(1.43	)	$	(0.39	)
	Earnings (loss) per share—net income:
	Basic	$	1.72		$	(2.54	)	$	0.83
	Diluted	$	1.71		$	(2.54	)	$	0.82
	For the year ended December 31, 2012, the Company was in a net loss position and, accordingly, the assumed exercise of 0.3 million stock options was excluded from diluted weighted average shares outstanding because their inclusion would have been anti-dilutive.
	Outstanding share-based awards of 2.4 million, 3.5 million, and 2.8 million were outstanding during the years ended December 31, 2013, 2012 and 2011, respectively, but were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.
	For the years ended December 31, 2013 and 2011, the undistributed earnings allocable to participating securities were $0.2 million and $1.1 million, respectively.
Accounting for Share-Based Payments	'
	Accounting for Share-Based Payments—The fair value of stock options is determined using the Black-Scholes valuation model. This model takes into account the exercise price of the stock option, the fair value of the common stock underlying the stock option as measured on the date of grant and an estimation of the volatility of the common stock underlying the stock option. Such value is recognized as expense over the service period, net of estimated forfeitures, using the straight-line method. The estimation of stock awards that will ultimately vest requires judgment, and to the extent actual results or updated estimates differ from the Company’s current estimates, such amounts will be recorded as a cumulative adjustment in the period estimates are revised. The Company considers many factors when estimating expected forfeitures, including types of awards, employee class, and historical experience. Actual results, and future changes in estimates, may differ from the Company’s current estimates.
	The amount of non-cash share-based expense recorded in the years ended December 31, 2013, 2012 and 2011 was $6.2 million, $13.2 million, and $15.1 million, respectively.
	Compensation expense for non-vested shares is measured based upon the quoted closing market price for the stock on the date of grant. The compensation cost is recognized on a straight-line basis over the vesting period. See Note 13 “Stock Options and Non-vested Shares”.
Income Taxes	'
	Income Taxes—Deferred income tax assets and liabilities are recognized for future income tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective income tax bases and for net operating loss and tax credit carryforwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred income tax assets and liabilities of a change in income tax rates is recorded in earnings in the period of enactment. A valuation allowance is provided for deferred income tax assets when it is more likely than not that future tax benefits will not be realized. Deferred income tax assets are reviewed on a quarterly basis to determine if a valuation allowance is necessary based on current and historical performance, along with other relevant factors.
	The income tax provision includes U.S. federal state and local income taxes and is based on pre-tax income or loss.
	The Company recognizes the benefits of uncertain tax positions taken or expected to be taken in tax returns in the provision for income taxes only for those positions that are more likely than not to be realized. The Company follows a two-step approach to recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates it is more likely than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. The Company considers many factors when evaluating and estimating our tax positions and tax benefits, which may require periodic adjustments and which may not accurately forecast actual outcomes. The Company’s policy is to include interest and penalties associated with income tax obligations in income tax expense.
Foreign Currency Translation	'
Foreign Currency Translation	Foreign Currency Translation—As a result of the sale of global data business, the Company is paid and makes payments in U.S. Dollars and is no longer exposed to any significant foreign currency risk.
Concentrations	'
	Concentrations—For the years ended 2013, 2012 and 2011, the aggregate revenue of four customers accounted for 65%, 56% and 55% of total revenue from continuing operations, respectively. At December 31, 2013 and 2012, the aggregate accounts receivable of four customers accounted for 75% and 61% of the Company’s total trade accounts receivable balance, respectively.
	In 2013, the Company had two customers in excess of ten percent of revenue, which were 34% and 20% of the Company’s total revenue from continuing operations. At December 31, 2013, the Company had two customers that in aggregate accounted for 61% of the Company’s accounts receivable balance.
	In 2012, the Company had two customers in excess of ten percent of revenue, which were 30% and 11% of the Company’s total revenue from continuing operations. At December 31, 2012, the Company had two customers that in aggregate accounted for 48% of the Company’s accounts receivable balance.
	In 2011, the Company had two customers in excess of ten percent of revenue, which were 26% and 15% of the Company’s total revenue from continuing operations.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements—Effective January 1, 2013, the Company adopted Financial Accounting Standards Board (FASB) Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (ASU 2013-02). ASU 2013-02 requires entities to disclose additional information about reclassification adjustments, including changes in accumulated other comprehensive income balances by component and significant items reclassified out of accumulated other comprehensive income. The Company has complied with this disclosure requirement, and as a result, the amendment did not change the items reported in its other comprehensive income (loss) or when an item of its other comprehensive income (loss) is reclassified to net income.

	No other new accounting pronouncement issued or effective during the fiscal year had or is expected to have a material impact on the consolidated financial statements.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	Dec. 31, 2013
Earnings (Loss) Per Share	'
	The following table presents a reconciliation of the numerators and denominators of basic and diluted earnings (loss) per share of common stock:


	Years ended December 31	2013			2012			2011
	Numerator:
	Income (loss) from continuing operations	$	64,298		$	(34,246	)	$	40,105
	Loss from discontinued operations, net of provision for income taxes		(3,808	)		(43,903	)		(13,048	)
	Loss on sale of discontinued operations, net of provision for income taxes		(4,837	)		—			—

	Net income (loss)	$	55,653		$	(78,149	)	$	27,057

	Denominator:
	Weighted average common shares outstanding		32,306			30,798			32,780
	Effect of dilutive securities:
	Stock options and non-vested shares		251			—			415

	Denominator for diluted earnings per share		32,557			30,798			33,195

	Earnings (loss) per share—continuing operations:
	Basic	$	1.99		$	(1.11	)	$	1.22
	Diluted	$	1.97		$	(1.11	)	$	1.21
	Loss per share—discontinued operations:
	Basic	$	(0.27	)	$	(1.43	)	$	(0.40	)
	Diluted	$	(0.27	)	$	(1.43	)	$	(0.39	)
	Earnings (loss) per share—net income:
	Basic	$	1.72		$	(2.54	)	$	0.83
	Diluted	$	1.71		$	(2.54	)	$	0.82

BUSINESS_DISPOSITION_Tables

BUSINESS DISPOSITION (Tables)	12 Months Ended
BUSINESS DISPOSITION (Tables)	Dec. 31, 2013
Summarized Activity in Company's Consolidated Statements of Income and Summary of Assets and Liabilities for Discontinued Operations	'
	The following table displays summarized activity in the Company’s consolidated statements of operations for discontinued operations during the years ended December 31, 2013, 2012 and 2011.


	Years Ended December 31	2013			2012			2011
	Revenue	$	15,205		$	42,450		$	43,681
	Operating loss		(3,130	)		(41,633	)		(13,812	)
	Loss before provision for income taxes		(3,581	)		(41,946	)		(14,824	)
	Provision (benefit) for income tax		227			1,957			(1,776	)
	Loss from discontinued operations		(3,808	)		(43,903	)		(13,048	)
	Loss on sale of discontinued operations	$	(4,837	)	$	—		$	—
	The following table displays a summary of the assets and liabilities of discontinued operations as of December 31, 2012. The Company did not have any assets or liabilities of discontinued operations on its balance sheet as of December 31, 2013.


	December 31	2012
	Assets
	Accounts receivable	$	12,074
	Prepaid expenses		4,798
	Property and equipment—net		9,694
	Other assets		651

		$	27,217

	Liabilities
	Accounts payable	$	4,839
	Accrued liabilities		16,110
	Other liabilities		1,453

		$	22,402

PROPERTY_AND_EQUIPMENT_Tables

PROPERTY AND EQUIPMENT (Tables)	12 Months Ended
PROPERTY AND EQUIPMENT (Tables)	Dec. 31, 2013
Property and Equipment	'
	Property and equipment as of December 31, 2013 and 2012 consist of the following:


	December 31	2013			2012
	Network equipment	$	31,670		$	34,223
	Computer software		2,492			4,358
	Computer equipment		1,411			894
	Tools and test equipment		450			450
	Furniture and fixtures		349			129
	Leasehold improvements		1,484			1,453
	Wireless equipment		6			—

			37,862			41,507
	Less accumulated depreciation		(14,766	)		(1,560	)

			23,096			39,948
	Construction in process		2,719			3,875

	Property and equipment-net	$	25,815		$	43,823

RECEIVABLES_Tables

RECEIVABLES (Tables)	12 Months Ended
RECEIVABLES (Tables)	Dec. 31, 2013
Receivables	'
	Receivables as of December 31, 2013 and 2012 consist of the following:


	December 31	2013			2012
	Billed receivables	$	21,785		$	29,546
	Unbilled receivables		1,315			1,636

			23,100			31,182
	Less allowance for doubtful accounts		(900	)		(423	)

	Receivables—net of allowance for doubtful accounts	$	22,200		$	30,759

FAIR_VALUE_MEASUREMENT_Tables

FAIR VALUE MEASUREMENT (Tables)	12 Months Ended
FAIR VALUE MEASUREMENT (Tables)	Dec. 31, 2013
Fair Value of Company's Financial Assets by Level in Fair Value Hierarchy	'
	The fair value of the Company’s financial assets by level in the fair value hierarchy as of December 31, 2013 and 2012 was as follows:


	December 31, 2013	Level 1		Level 2		Level 3		Total
	Assets:
	Money Market Funds	$	41,827	$	—	$	—	$	41,827

	December 31, 2012	Level 1		Level 2		Level 3		Total
	Assets:
	Money Market Funds	$	823	$	—	$	—	$	823

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
COMMITMENTS AND CONTINGENCIES (Tables)	Dec. 31, 2013
Future Lease Payments of Operating Leases	'
	The following table represents future lease payments under the operating leases:


	December 31	2013
	2014	$	5,216
	2015		5,263
	2016		4,933
	2017		4,224
	2018		3,613
	Thereafter		11,607

	Total	$	34,856

GOODWILL_AND_INTANGIBLES_NET_T

GOODWILL AND INTANGIBLES, NET (Tables)	12 Months Ended
GOODWILL AND INTANGIBLES, NET (Tables)	Dec. 31, 2013
Carrying Amount of Goodwill	'
	The following table displays a roll forward of the carrying amount of Americas reporting unit goodwill from January 1, 2012 to December 31, 2012:


		Total
	Balance at December 31, 2011	$	43,266
	Impairment charges		(44,543	)
	Translation and other		1,277

	Balance at December 31, 2012	$	—

Intangible Assets and Accumulated Amortization Excluding Goodwill	'
	Intangible assets and accumulated amortization, excluding goodwill, consist of the following:


		2012
	December 31	Gross			Accumulated		Impairment
		Carrying			Amortization		Loss
		Amount
	Intangible assets:
	Customer relationships	$	20,677		$	3,359	$	17,318

		$	20,677		$	3,359	$	17,318

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
INCOME TAXES (Tables)	Dec. 31, 2013
Income Before Income Tax, Domestic and Foreign	'
	Income (loss) before provision for income taxes, and the related provision for income taxes, for the years ended December 31 2013, 2012 and 2011, were as follows:


	Years Ended December 31	2013			2012			2011
	Income (loss) before provision for income taxes	$	77,822		$	(32,288	)	$	60,613


	Provision for income taxes
	Current:
	Federal		15,391			8,864			17,910
	State		428			1,414			2,477
	Foreign		—			—			3,080

	Total current		15,819			10,278			23,467

	Deferred (prepaid):
	Federal		(1,713	)		(5,817	)		(1,343	)
	State		(582	)		1,934			(1,616	)
	Foreign		—			(4,437	)		—

	Total deferred		(2,295	)		(8,320	)		(2,959	)

	Total provision for income taxes	$	13,524		$	1,958		$	20,508

Effective Income Tax Rate Reconciliation	'
	A reconciliation of the federal statutory rate to our effective tax rate is as follows:


	December 31	2013			2012			2011
	Statutory federal rate		35.00%			35.00%			35.00%
	State income tax, net of federal benefit		3.20%			2.1 %			3.10%
	Illinois state EDGE credit net of valuation allowance		-1.00%			-4.70%			-1.60%
	Transaction costs		—			—			-0.60%
	Impact of sale of global data business		-15.50%			—			—
	Goodwill impairment		—			-52.50%			—
	Americas Data assets allocation		-4.70%			15.70%			-1.90%
	Other		0.40%			-1.70%			-0.20%

	Effective income tax rate		17.40%			-6.10%			33.80%

Deferred Tax Assets and Liabilities	'
	Significant components of the Company’s deferred income taxes are as follows:


	December 31	2013			2012
	Deferred tax assets and liabilities
	Deferred tax assets:
	Stock option compensation	$	9,084		$	9,667
	State credit carry forward		2,577			2,211
	Accrued direct costs		413			816
	State bonus depreciation		302			505
	Accrued other		1,769			980
	Capital loss on sale of Tinet stock		21,405			—
	Goodwill		—			591

	Total deferred tax assets		35,550			14,770

	Deferred tax liabilities:
	Depreciation		(5,091	)		(7,899	)
	Prepaids		(800	)		(740	)

	Total deferred tax liabilities		(5,891	)		(8,639	)

	Subtotal		29,659			6,131
	Valuation allowance		(23,444	)		(2,211	)

	Net deferred income tax asset	$	6,215		$	3,920

Reconciliation of Beginning and Ending Amount of Uncertain Tax Positions	'
	A reconciliation of the beginning and ending amount of uncertain tax positions is as follows


		2013			2012
	Balance at January 1	$	1,839		$	597
	Increases related to prior periods		10			1,301
	Increases related to current year		—			194
	Decreases related to settlements with taxing authorities		—			(253	)
	Decreases related to sale of the global data business		(1,809	)		—

	Balance on December 31	$	40		$	1,839

STOCK_OPTIONS_AND_NONVESTED_SH1

STOCK OPTIONS AND NON-VESTED SHARES (Tables)	12 Months Ended
STOCK OPTIONS AND NON-VESTED SHARES (Tables)	Dec. 31, 2013
Assumptions Used to Estimate Fair Value of Stock Options	'
	For the years ended December 31, 2013, 2012 and 2011, fair value of stock options was measured using the following assumptions:


	Years Ended December 31	2013		2012	2011
	Expected life	7.3 years		7.24 years	7.13 years
	Risk-free interest rate range	1.30%		1.1% – 1.6%	1.3% – 2.9%
	Expected dividends	—		—	—
	Volatility	45.00%		50.5% – 55.9%	50.1% – 51.9%
Stock Option Plan Activity	'
	The following summarizes activity under the Company’s stock option plan:


		Shares			Wtd. Avg.		Aggregate		Wtd. Avg.
		0			Exercise		Intrinsic		Remaining
					Price		Value		Term (yrs)
	Options outstanding—December 31, 2011		3,520		$	16.09
	Granted		180			2.48
	Exercised		(508	)		2.75
	Cancelled		(100	)		19.16

	Options outstanding—December 31, 2012		3,092		$	14.64
	Granted		716			3.4
	Exercised		(206	)		2.02
	Cancelled		(611	)		7.94

	Options outstanding—December 31, 2013		2,991		$	12.91	$	5,964		5.92
	Vested or expected to vest-December 31, 2013		2,973		$	12.97	$	5,817		5.9
	Exercisable-December 31, 2013		2,294		$	15.57	$	890		5.04
Non-Vested Share Activity	'
	A summary of the Company’s non-vested share activity and related information for the year ended December 31, 2013 and 2012 is as follows:


		Shares			Wtd. Avg.		Aggregate
		0			Grant		Intrinsic
					Date Fair		Value
					Value
	Non-vested shares outstanding at December 31, 2011		1,096		$	14.47
	Granted		603			7.16
	Vested		(722	)		12.43
	Cancelled		(131	)		12.48

	Non-vested shares outstanding at December 31, 2012		846		$	11.31
	Granted		332			5.5
	Vested		(442	)		11.45
	Cancelled		(259	)		6.79

	Non-vested shares outstanding at December 31, 2013		477		$	9.66	$	5,443
	Non-vested shares vested or expected to vest at December 31, 2013		444		$	9.66	$	5,066

SEGMENT_AND_GEOGRAPHIC_INFORMA1

SEGMENT AND GEOGRAPHIC INFORMATION (Tables)	12 Months Ended
SEGMENT AND GEOGRAPHIC INFORMATION (Tables)	Dec. 31, 2013
Summary of Geographical Information	'
	The following is a summary of geographical information as of and for the year ended December 31, 2013, 2012 and 2011:


	Years Ended December 31	2013		2012		2011
	Revenue from external customers:
	United States of America	$	209,310	$	224,931	$	216,270
	Other countries within Americas reporting unit		2,351		8,072		8,333

		$	211,661	$	233,003	$	224,603

	Long-lived assets:
	United States of America	$	25,660	$	43,823	$	54,047
	Other countries		155		—		—

		$	25,815	$	43,823	$	54,047

QUARTERLY_FINANCIAL_DATA_UNAUD1

QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)	12 Months Ended
QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)	Dec. 31, 2013
Quarterly Financial Data	'

			2013
			1st (1)				2nd				3rd				4th
	Operating Results:
	Revenue		$	59,288			$	53,449			$	50,396			$	48,528
	Operating expense:
	Network and facilities expense (excluding depreciation and amortization)			24,636				24,053				22,027				24,151
	Operations			7,798				7,508				7,182				6,107
	Sales and marketing			2,034				1,526				1,090				904
	General and administrative			4,499				4,535				6,071				3,667
	Depreciation and amortization			4,513				3,699				3,293				3,147
	Loss (gain) on sale of assets			—				223				3				(34	)
	Gain on sale of Americas Data assets			—				(23,171	)			—				(5,620	)

	Total operating expense			43,480				18,373				39,666				32,322

	Income from operations			15,808				35,076				10,730				16,206

	Other income (expense)
	Interest income (expense)			39				13				1				(47	)
	Other income (expense)			(5	)			4				(4	)			1

	Total other income (expense)			34				17				(3	)			(46	)

	Income from continuing operations before provision for income taxes			15,842				35,093				10,727				16,160
	Provision for income taxes			3,606				741				4,177				5,000

	Income from continuing operations			12,236				34,352				6,550				11,160
	Income (loss) from discontinued operations, net of provision for income taxes (3)			(5,336	)			(1,698	)			(68	)			3,294
	Gain (loss) on sale of discontinued operations, net of provision for income taxes			—				794				(11	)			(5,620	)

	Net income		$	6,900			$	33,448			$	6,471			$	8,834

	Per Share Data:
	Earnings per common share-continuing operations-basic		$	0.38			$	1.05			$	0.2			$	0.35
	Earnings per common share-continuing operations-diluted		$	0.38			$	1.05			$	0.2			$	0.34
	Loss per common share-discontinued operations-basic (3)		$	(0.17	)		$	(0.03	)		$	—			$	(0.07	)
	Loss per common share-discontinued operations-diluted (3)		$	(0.16	)		$	(0.03	)		$	—			$	(0.07	)
	Earnings per common share-net income-basic (3)		$	0.21			$	1.02			$	0.2			$	0.27
	Earnings per common share-net income-diluted (3)		$	0.21			$	1.02			$	0.2			$	0.27
	Weighted average number of shares outstanding-basic			32,337				31,629				32,262				32,194
	Weighted average number of shares outstanding-diluted			32,453				31,629				32,557				32,501
			2012
			1st (1)				2nd				3rd				4th
	Operating Results:
	Revenue		$	60,887			$	58,262			$	59,573			$	54,281
	Operating expense:
	Network and facilities expense (excluding depreciation and amortization)			23,969				22,966				25,546				26,277
	Operations			8,794				8,674				10,312				9,701
	Sales and marketing			2,181				1,997				2,017				1,837
	General and administrative			5,249				5,702				3,850				6,368
	Depreciation and amortization			5,319				5,371				5,544				5,103
	Carrier Settlement			—				—				9,000				—
	Impairment of fixed assets			—				—				1,257				6,588
	Impairment of goodwill			—				—				—				44,543
	Impairment of intangibles			—				—				—				17,318
	Gain on sale of assets			(109	)			(4	)			(55	)			(2	)

	Total operating expense			45,403				44,706				57,471				117,733

	Income (loss) from operations			15,484				13,556				2,102				(63,452	)

	Other income (expense)
Interest income (expense)			41				49				42				(111	)
Other income			—				1				—				—

Total other income (expense)			41				50				42				(111	)

Income (loss) from continuing operations before provision for income taxes			15,525				13,606				2,144				(63,563	)
Provision (benefit) for income taxes			3,745				2,933				(3,596	)			(1,124	)

Income (loss) from continuing operations			11,780				10,673				5,740				(62,439	)
Loss from discontinued operations, net of provision for income taxes (2)			(5,125	)			(6,967	)			(8,475	)			(23,336	)

Net income (loss)		$	6,655			$	3,706			$	(2,735	)		$	(85,775	)

Per Share Data:
Earnings (loss) per common share-continuing operations-basic		$	0.37			$	0.34			$	0.18			$	(1.99	)
Earnings (loss) per common share-continuing operations-diluted		$	0.37			$	0.34			$	0.18			$	(1.99	)
Loss per common share-discontinued operations-basic (2)		$	(0.16	)		$	(0.22	)		$	(0.27	)		$	(0.74	)
Loss per common share-discontinued operations-diluted (2)		$	(0.16	)		$	(0.22	)		$	(0.27	)		$	(0.74	)
Earnings (loss) per common share-net income (loss)-basic (2)		$	0.21			$	0.12			$	(0.09	)		$	(2.74	)
Earnings (loss) per common share-net income (loss)-diluted (2)		$	0.21			$	0.12			$	(0.09	)		$	(2.74	)
Weighted average number of shares outstanding-basic			31,664				31,791				31,993				31,352
Weighted average number of shares outstanding-diluted			32,058				32,178				31,993				31,352

-1	Certain amounts in prior years’ financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.
-2	Loss from discontinued operations for the three months ended December 31, 2012 includes a total $21.8 million charge for goodwill, intangible assets and fixed assets impairments.
-3	Loss from discontinued operations, net of provision for income taxes for the three months ended June 30, 2013 includes only one month of activity as compared to the three months in all preceding three month periods.

Description_of_the_Business_Ad

Description of the Business - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013
Business Acquisition [Line Items]	'	'
Proceeds from sale of business	$54,500,000	'
Proceed from sale of business, cash	52,500,000	42,587,000
Sale of business non-cash consideration	2,000,000	'
Period of free service provided	'3 years	'
Divestiture related costs included in gain on sale of business	$2,400,000	'

Recovered_Sheet1

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
Share data in Millions, unless otherwise specified	Apr. 30, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
		Investment	Investment	Unit
				Investment
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Proceeds from sale of business	$54,500,000	'	'	'	'
Cash in banks	'	30,700,000	35,200,000	30,700,000	'
Money market mutual funds	'	800,000	41,800,000	800,000	'
Number of money market mutual fund invested	'	2	3	2	'
Estimated useful lives, years	'	'	'5 years	'	'
Impairment of property and equipment	'	'	'	13,200,000	'
Impairment of intangible asset	'	'	'	25,800,000	'
Number of reporting units	'	'	'	3	'
Impairment of goodwill	'	44,543,000	'	44,543,000	'
Impairment of goodwill	'	49,500,000	'	49,500,000	'
Undistributed earnings allocable to participating securities	'	'	200,000	'	1,100,000
Share-based expense	'	'	6,200,000	13,200,000	15,100,000
Sales \| Customer Concentration Risk	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Number of customers	'	'	4	4	4
Concentration risks percentage	'	'	65.00%	56.00%	55.00%
Sales \| Customer Concentration Risk \| Customer 1	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Concentration risks percentage	'	'	34.00%	30.00%	26.00%
Sales \| Customer Concentration Risk \| Customer 2	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Concentration risks percentage	'	'	20.00%	11.00%	15.00%
Accounts Receivable \| Credit Concentration Risk	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Number of customers	'	'	4	4	'
Concentration risks percentage	'	'	75.00%	61.00%	'
Accounts Receivable \| Credit Concentration Risk \| Major Customers	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Concentration risks percentage	'	'	61.00%	48.00%	'
Hosted Services	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Asset impairment charge	'	'	'	2,900,000	'
Americas	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Impairment of property and equipment	'	'	'	4,900,000	'
Impairment of intangible asset	'	'	'	17,300,000	'
Impairment of goodwill	'	'	'	44,543,000	'
EMEA	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Impairment of property and equipment	'	'	'	7,800,000	'
Impairment of intangible asset	'	'	'	7,700,000	'
Impairment of goodwill	'	'	'	4,500,000	'
APAC	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Impairment of property and equipment	'	'	'	500,000	'
Impairment of intangible asset	'	'	'	800,000	'
Impairment of goodwill	'	'	'	$500,000	'
Stock Options	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Anti-dilutive securities not included in the computation of diluted earnings per share	'	'	'	0.3	'
Share-based awards	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Anti-dilutive securities not included in the computation of diluted earnings per share	'	'	2.4	3.5	2.8
Network Equipment And Tools And Test Equipment	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives, years	'	'	'5 years	'	'
Furniture and fixtures	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives, years	'	'	'3 years	'	'
Leasehold Improvements	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives, years	'	'	'Five years or the life of the lease, whichever is less	'	'

Earnings_Per_Share_Detail

Earnings Per Share (Detail) (USD $)	1 Months Ended	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Apr. 30, 2013	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]	'	'		'		'		'		'		'		'		'		'	'	'
Income (loss) from continuing operations	'	$11,160		$6,550		$34,352		$12,236	[1]	($62,439)		$5,740		$10,673		$11,780	[1]	$64,298	($34,246)	$40,105
Loss from discontinued operations, net of provision for income taxes	'	'		'		'		'		'		'		'		'		-3,808	-43,903	-13,048
Loss on sale of discontinued operations, net of provision for income taxes	-4,800	-5,620		-11		794		'		'		'		'		'		-4,837	'	'
Net income (loss)	'	$8,834		$6,471		$33,448		$6,900	[1]	($85,775)		($2,735)		$3,706		$6,655	[1]	$55,653	($78,149)	$27,057
Weighted average common shares outstanding	'	32,194		32,262		31,629		32,337	[1]	31,352		31,993		31,791		31,664	[1]	32,306	30,798	32,780
Stock options and non-vested shares	'	'		'		'		'		'		'		'		'		251	'	415
Denominator for diluted earnings per share	'	32,501		32,557		31,629		32,453	[1]	31,352		31,993		32,178		32,058	[1]	32,557	30,798	33,195
Earnings (loss) per share-continuing operations:	'	'		'		'		'		'		'		'		'		'	'	'
Basic	'	$0.35		$0.20		$1.05		$0.38	[1]	($1.99)		$0.18		$0.34		$0.37	[1]	$1.99	($1.11)	$1.22
Diluted	'	$0.34		$0.20		$1.05		$0.38	[1]	($1.99)		$0.18		$0.34		$0.37	[1]	$1.97	($1.11)	$1.21
Loss per share-discontinued operations:	'	'		'		'		'		'		'		'		'		'	'	'
Basic	'	($0.07)	[2]	'		($0.03)	[2]	($0.17)	[1],[2]	($0.74)	[3]	($0.27)	[3]	($0.22)	[3]	($0.16)	[1],[3]	($0.27)	($1.43)	($0.40)
Diluted	'	($0.07)	[2]	'		($0.03)	[2]	($0.16)	[1],[2]	($0.74)	[3]	($0.27)	[3]	($0.22)	[3]	($0.16)	[1],[3]	($0.27)	($1.43)	($0.39)
Earnings (loss) per share-net income:	'	'		'		'		'		'		'		'		'		'	'	'
Basic	'	$0.27	[2]	$0.20	[2]	$1.02	[2]	$0.21	[1],[2]	($2.74)	[3]	($0.09)	[3]	$0.12	[3]	$0.21	[1],[3]	$1.72	($2.54)	$0.83
Diluted	'	$0.27	[2]	$0.20	[2]	$1.02	[2]	$0.21	[1],[2]	($2.74)	[3]	($0.09)	[3]	$0.12	[3]	$0.21	[1],[3]	$1.71	($2.54)	$0.82

[1]	Certain amounts in prior years' financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.
[2]	Loss from discontinued operations, net of provision for income taxes for the three months ended June 30, 2013 includes only one month of activity as compared to the three months in all preceding three month periods.
[3]	Loss from discontinued operations for the three months ended December 31, 2012 includes a total $21.8 million charge for goodwill, intangible assets and fixed assets impairments.

Business_Disposition_Additiona

Business Disposition - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended			12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'	'	'
Proceeds from sale of business	$54,500,000	'	'	'	'
Proceed from sale of business, cash	52,500,000	'	'	'	42,587,000
Sale of business non-cash consideration	2,000,000	'	'	'	'
Period of free service provided	'3 years	'	'	'	'
Proceeds from business after working capital adjustment	3,300,000	'	'	'	'
Proceeds from sale of discontinued operations	51,200,000	'	'	'	'
Transaction costs from sale of business	2,400,000	'	'	'	'
Working capital adjustment	1,000,000	'	'	'	'
Proceeds from sale of business net of working capital adjustment and transaction cost	47,800,000	'	'	'	'
Claims pursuant to post closing purchase price adjustment by GTT	3,800,000	'	'	'	'
Due from GTT related to post closing purchase price adjustment	1,100,000	'	'	'	'
Book value of asset held for sale	14,700,000	'	'	'	'
Gain on sale of asset held for sale	28,800,000	5,620,000	'	23,171,000	28,791,000
Disposal group including discontinued operation cash and cash equivalents	1,000,000	'	'	'	'
Loss on sale of the global data business	-4,800,000	-5,620,000	-11,000	794,000	-4,837,000
Americas	'	'	'	'	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'	'	'
Proceeds from sale of asset held for sale	43,500,000	'	'	'	'
EMEA and APAC	'	'	'	'	'
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'	'	'
Proceeds from sale of discontinued operations	4,300,000	'	'	'	'
Book value of asset held for sale	$10,100,000	'	'	'	'

Summarized_Activity_in_Consoli

Summarized Activity in Consolidated Statements of Income for Discontinued Operations (Detail) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Apr. 30, 2013

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Revenue

$15,205

$42,450

$43,681

Operating loss

-3,130

-41,633

-13,812

Loss before income taxes

-3,581

-41,946

-14,824

Provision (benefit) for income tax

227

1,957

-1,776

Loss from discontinued operations

3,294

[1]

-68

[1]

-1,698

[1]

-5,336

[1],[2]

-23,336

[3]

-8,475

[3]

-6,967

[3]

-5,125

[2],[3]

-3,808

-43,903

-13,048

Loss on sale of discontinued operations

($4,800)

($5,620)

($11)

$794

($4,837)

[1]

Loss from discontinued operations, net of provision for income taxes for the three months ended June 30, 2013 includes only one month of activity as compared to the three months in all preceding three month periods.

[2]

Certain amounts in prior years' financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.

[3]

Loss from discontinued operations for the three months ended December 31, 2012 includes a total $21.8 million charge for goodwill, intangible assets and fixed assets impairments.

Summary_of_Assets_and_Liabilit

Summary of Assets and Liabilities of Discontinued Operations (Detail) (USD $)	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2012
Assets	'
Accounts receivable	$12,074
Prepaid expenses	4,798
Property and equipment-net	9,694
Other assets	651
Assets of Disposal Group, Including Discontinued Operation, Total	27,217
Liabilities	'
Accounts payable	4,839
Accrued liabilities	16,110
Other liabilities	1,453
Liabilities of Disposal Group, Including Discontinued Operation, Total	$22,402

Property_and_Equipment_Detail

Property and Equipment (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	$37,862	$41,507	'
Less accumulated depreciation	-14,766	-1,560	'
Property and equipment, net excluding construction in process	23,096	39,948	'
Construction in process	2,719	3,875	'
Property and equipment-net	25,815	43,823	54,047
Network equipment	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	31,670	34,223	'
Computer software	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	2,492	4,358	'
Computer equipment	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	1,411	894	'
Tools And Test Equipment	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	450	450	'
Furniture and fixtures	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	349	129	'
Leasehold Improvements	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	1,484	1,453	'
Wireless	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, plant and equipment, gross	$6	'	'

Property_and_Equipment_Additio

Property and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Dec. 31, 2013	Unit
Property, Plant and Equipment [Line Items]	'	'
Estimated useful lives of property and equipment, years	'5 years	'
Impairment of property and equipment	'	$13.20
Number of reporting units	'	3
Americas	'	'
Property, Plant and Equipment [Line Items]	'	'
Impairment of property and equipment	'	4.9
EMEA	'	'
Property, Plant and Equipment [Line Items]	'	'
Impairment of property and equipment	'	7.8
APAC	'	'
Property, Plant and Equipment [Line Items]	'	'
Impairment of property and equipment	'	$0.50

Receivables_Detail

Receivables (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule Of Financing Receivables [Line Items]	'	'
Billed receivables	$21,785	$29,546
Unbilled receivables	1,315	1,636
Gross receivables	23,100	31,182
Less allowance for doubtful accounts	-900	-423
Receivables-net of allowance for doubtful accounts	$22,200	$30,759

Fair_Value_of_Companys_Financi

Fair Value of Company's Financial Assets by Level in Fair Value Hierarchy (Detail) (Fair Value, Measurements, Recurring, Money Market Funds, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets:	'	'
Assets, fair Value	$41,827	$823
Level 1	'	'
Assets:	'	'
Assets, fair Value	$41,827	$823

401k_Savings_Plan_Additional_I

401(k) Savings Plan - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined benefit plan, employees' contribution in percentage, maximum	87.00%	'	'
Employer's contribution to 401 (k) defined contribution saving plan	$0.50	$0.50	$0.50

Common_Stock_Additional_Inform

Common Stock - Additional Information (Detail) (USD $)	0 Months Ended				3 Months Ended	12 Months Ended
Share data in Thousands, except Per Share data, unless otherwise specified	Dec. 04, 2013	Aug. 27, 2013	29-May-13	Oct. 05, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Class of Stock [Line Items]	'	'	'	'	'	'	'
Common stock, authorized shares	'	'	'	'	150,000	150,000	150,000
Common stock, par value	'	'	'	'	$0.00	$0.00	$0.00
Special cash dividend declared per share of common stock	'	'	$1.25	$3	'	'	'
Special cash dividend declared for common stock	'	'	$40,500,000	$96,700,000	'	'	'
Regular quarterly dividend declared per share of common stock	$0.06	$0.06	$0.06	'	'	'	'
Dividends paid	'	'	'	'	6,000,000	45,922,000	96,195,000
Special cash dividend and Regular quarterly dividend payment for common stock	'	'	'	'	'	46,500,000	'
Special cash dividends related to expected forfeitures of non-vested Shares	'	'	'	'	'	$600,000	'
Dividend declaration date	4-Dec-13	27-Aug-13	29-May-13	5-Oct-12	'	'	'
Dividend payable date	30-Dec-13	27-Sep-13	24-Jun-13	30-Oct-12	'	'	'

Recovered_Sheet2

Commitments and Contingencies - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Jan. 08, 2014

State and Local Jurisdiction

Subsequent Event

Loss Contingencies [Line Items]

Rental expense

$5,200,000

Operating lease expiration

28-Feb-25

Value customers seeks in a dispute

6,000,000

Loss contingency, credit provided for settlement

5,000,000

Loss contingency, credit provided for settlement, payment period

'18 months

Loss contingency, new revenue generating traffic period

'2 years

Impairment of goodwill and intangibles

75,340,000

Impairment of property and equipment

13,200,000

Net income (loss)

8,834,000

6,471,000

33,448,000

6,900,000

[1]

-85,775,000

-2,735,000

3,706,000

6,655,000

[1]

55,653,000

-78,149,000

27,057,000

Professional and legal expenses

2,400,000

Income tax examination, tax assessment

$1,000,000

[1]

Certain amounts in prior years' financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.

Future_Lease_Payments_of_Opera

Future Lease Payments of Operating Leases (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2013
Operating Leased Assets [Line Items]	'
2014	$5,216
2015	5,263
2016	4,933
2017	4,224
2018	3,613
Thereafter	11,607
Total	$34,856

Carrying_Amount_of_Goodwill_De

Carrying Amount of Goodwill (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2012
Goodwill [Line Items]	'	'
Impairment charges	($44,543)	($44,543)
Americas	'	'
Goodwill [Line Items]	'	'
Beginning Balance	'	43,266
Impairment charges	'	-44,543
Translation and other	'	$1,277

Goodwill_and_Intangibles_Net_A

Goodwill and Intangibles Net - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012
	Dec. 31, 2012	Unit
Goodwill and Intangible Assets Disclosure [Line Items]	'	'
Number of reporting units	'	3
Goodwill impairment charges	$44,543,000	$44,543,000
Goodwill impairment charges	49,500,000	49,500,000
Impairment of intangible asset	'	25,800,000
Intangible asset amortization expense	'	1,500,000
Customer Relationships	'	'
Goodwill and Intangible Assets Disclosure [Line Items]	'	'
Estimated useful life for intangible assets, years	'	'15 years
Americas	'	'
Goodwill and Intangible Assets Disclosure [Line Items]	'	'
Goodwill impairment charges	'	44,543,000
Impairment of intangible asset	'	17,300,000
EMEA	'	'
Goodwill and Intangible Assets Disclosure [Line Items]	'	'
Goodwill impairment charges	'	4,500,000
Impairment of intangible asset	'	7,700,000
APAC	'	'
Goodwill and Intangible Assets Disclosure [Line Items]	'	'
Goodwill impairment charges	'	500,000
Impairment of intangible asset	'	$800,000

Intangible_Assets_and_Accumula

Intangible Assets and Accumulated Amortization Excluding Goodwill (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	$20,677
Accumulated Amortization	3,359
Impairment Loss	17,318
Customer Relationships	'
Finite-Lived Intangible Assets [Line Items]	'
Gross Carrying Amount	20,677
Accumulated Amortization	3,359
Impairment Loss	$17,318

Credit_Facility_Additional_Inf

Credit Facility - Additional Information (Detail) (Revolving Credit Facility, USD $)	1 Months Ended
In Millions, unless otherwise specified	Mar. 05, 2013
Line of Credit Facility [Line Items]	'
Credit facility, maximum borrowing capacity	$15
Credit facility, maturity term	'3 years
LIBOR	'
Line of Credit Facility [Line Items]	'
Credit facility, interest rate	3.25%

Income_Loss_Before_Provision_f

Income (Loss) Before Provision for Income Taxes and Related Provision for Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax [Line Items]	'	'	'
Income (loss) before provision for income taxes	$77,822	($32,288)	$60,613
Federal, provision for income taxes, current	15,391	8,864	17,910
State, provision for income taxes, current	428	1,414	2,477
Foreign, provision for income taxes, current	'	'	3,080
Total current	15,819	10,278	23,467
Federal, provision for income taxes, deferred	-1,713	-5,817	-1,343
State, provision for income taxes, deferred	-582	1,934	-1,616
Foreign, provision for income taxes, deferred	'	-4,437	'
Total deferred	-2,295	-8,320	-2,959
Total provision for income taxes	$13,524	$1,958	$20,508

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax [Line Items]	'	'	'
Estimated effective income tax rate	17.40%	-6.10%	33.80%
Valuation allowance	$23,444,000	$2,211,000	'
Liabilities for uncertain tax positions	100,000	1,800,000	'
ILLINOIS	'	'	'
Income Tax [Line Items]	'	'	'
Valuation allowance	2,000,000	'	'
Released valuation allowance related to Illinois EDGE credit	-500,000	'	'
Italy \| Foreign Tax Authority	'	'	'
Income Tax [Line Items]	'	'	'
Valuation allowance	$21,100,000	'	'

Effective_Income_Tax_rate_Reco

Effective Income Tax rate Reconciliation (Detail)	12 Months Ended
Effective Income Tax rate Reconciliation (Detail)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax [Line Items]	'	'	'
Statutory federal rate	35.00%	35.00%	35.00%
State income tax, net of federal benefit	3.20%	2.10%	3.10%
Illinois state EDGE credit net of valuation allowance	-1.00%	-4.70%	-1.60%
Transaction costs	'	'	-0.60%
Impact of sale of global data business	-15.50%	'	'
Goodwill impairment	'	-52.50%	'
Americas Data assets allocation	-4.70%	15.70%	-1.90%
Other	0.40%	-1.70%	-0.20%
Effective income tax rate	17.40%	-6.10%	33.80%

Deferred_Tax_Assets_and_Liabil

Deferred Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:	'	'
Stock option compensation	$9,084	$9,667
State credit carry forward	2,577	2,211
Accrued direct costs	413	816
State bonus depreciation	302	505
Accrued other	1,769	980
Capital loss on sale of Tinet stock	21,405	'
Goodwill	'	591
Total deferred tax assets	35,550	14,770
Deferred tax liabilities:	'	'
Depreciation	-5,091	-7,899
Prepaids	-800	-740
Total deferred tax liabilities	-5,891	-8,639
Subtotal	29,659	6,131
Valuation allowance	-23,444	-2,211
Net deferred income tax asset	$6,215	$3,920

Reconciliation_of_Beginning_an

Reconciliation of Beginning and Ending Amount of Uncertain Tax Positions (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]	'	'
Balance at January 1	$1,839	$597
Increases related to prior periods	10	1,301
Increases related to current year	'	194
Decreases related to settlements with taxing authorities	'	-253
Decreases related to sale of the global data business	-1,809	'
Balance on December 31	$40	$1,839

Recovered_Sheet3

Stock Options and Non-Vested Shares - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Granted options outstanding	2,991,000	3,092,000	3,520,000
Non-vested granted shares remaining outstanding	477,000	846,000	1,096,000
Non-cash compensation expense	$6.20	$13.20	$15.10
Options granted	700,000	200,000	'
Weighted-average exercise price	$3.40	$2.48	'
Weighted-average fair value of options granted	$1.64	$1.40	$7.82
Total grant date fair value of options granted	2.4	6.1	7.7
Total intrinsic value of stock options exercised	0.9	4.4	1.1
Shares granted, non vested	332,000	603,000	'
Closing stock price	$11.41	'	'
Scenario, Adjustment	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Granted options outstanding	3,500,000	'	'
Options exercise price decreased	($1.08)	'	'
2003 Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Issuance of stock options and non-vested shares	4,700,000	'	'
Non-cash compensation expense	0.3	'	'
2007 Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Granted options outstanding	3,000,000	'	'
Non-vested granted shares remaining outstanding	500,000	'	'
Additional outstanding shares available for grant	1,000,000	'	'
Shares available for grant as a percentage of the Company's outstanding common stock	3.20%	'	'
Non-Vested Shares	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Shares issued	100,000	'	'
Weighted average remaining term recorded for options, in years	'1 year 8 months 12 days	'2 years 3 months 18 days	'
Shares granted, non vested	300,000	600,000	'
Non-vested shares, vesting period, years	'	4	'
Unrecognized compensation cost	3.9	8.4	'
Stock Options	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Unrecognized compensation cost	1.7	3.6	'
Weighted average remaining term recorded for options, in years	'2 years 1 month 6 days	'1 year 9 months 18 days	'
Stock Options \| President And Chief Financial Officer	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Non-cash compensation expense	'	0.1	'
Allocated share based compensation expense related to acceleration	'	0.5	'
Nonvested Restricted Shares	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Non-cash compensation expense	2.4	'	'
Options	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Non-cash compensation expense	3.8	'	'
Two Thousand And Three Plan Modification \| President And Chief Financial Officer	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Allocated share based compensation expense related to acceleration	'	0.4	'
Non-vested restricted shares \| President And Chief Financial Officer	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Allocated share based compensation expense related to acceleration	'	$2.10	'

Estimated_Fair_Value_of_Option

Estimated Fair Value of Options (Detail)	12 Months Ended
Estimated Fair Value of Options (Detail)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Expected life	'7 years 3 months 18 days	'7 years 2 months 27 days	'7 years 1 month 17 days
Risk-free interest rate range	1.30%	'	'
Risk-free interest rate range, minimum	'	1.10%	1.30%
Risk-free interest rate range, maximum	'	1.60%	2.90%
Expected dividends	'	'	'
Volatility	45.00%	'	'
Volatility, minimum	'	50.50%	50.10%
Volatility, maximum	'	55.90%	51.90%

Stock_Option_Plan_Activity_Det

Stock Option Plan Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Shares, Options outstanding beginning	3,092	3,520
Shares, Granted	716	180
Shares, Exercised	-206	-508
Shares, Cancelled	-611	-100
Shares, Options outstanding ending	2,991	3,092
Weighted Average Exercise Price, Options outstanding beginning	$14.64	$16.09
Shares, Vested or expected to Vest	2,973	'
Weighted Average Exercise Price, Granted	$3.40	$2.48
Shares, Exercisable	2,294	'
Weighted Average Exercise Price, Exercised	$2.02	$2.75
Weighted Average Exercise Price, Canceled	$7.94	$19.16
Weighted Average Exercise Price, Options outstanding ending	$12.91	$14.64
Weighted Average Exercise Price, Vested or expected to vest	$12.97	'
Weighted Average Exercise Price, Exercisable	$15.57	'
Aggregate Intrinsic Value, Options outstanding ending	$5,964	'
Aggregate Intrinsic Value, Vested or expected to vest	5,817	'
Aggregate Intrinsic Value, Exercisable	$890	'
Weighted Average Remaining Term, Options outstanding ending, years	'5 years 11 months 1 day	'
Weighted Average Remaining Term, vested or expected to vest, years	'5 years 10 months 24 days	'
Weighted Average Remaining Term, Exercisable, years	'5 years 15 days	'

NonVested_Share_Activity_Detai

Non-Vested Share Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Shares, Non-vested shares outstanding beginning	846	1,096
Shares, Granted	332	603
Shares, Vested	-442	-722
Shares, Cancelled	-259	-131
Shares, Non-vested shares outstanding ending	477	846
Weighted Average Grant Date Fair Value, Non-vested shares outstanding beginning	$11.31	$14.47
Shares, Non-vested shares vested or expected to vest	444	'
Weighted Average Grant Date Fair Value, Granted	$5.50	$7.16
Weighted Average Grant Date Fair Value, Vested	$11.45	$12.43
Weighted Average Grant Date Fair Value, Cancelled	$6.79	$12.48
Weighted Average Grant Date Fair Value, Non-vested shares outstanding ending	$9.66	$11.31
Weighted Average Grant Date Fair Value, Non-vested shares vested or expected to vest	$9.66	'
Aggregate Intrinsic Value, Non-vested shares outstanding ending	$5,443	'
Aggregate Intrinsic Value, Non-vested shares vested or expected to vest	$5,066	'

Recovered_Sheet4

Segment and Geographic Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
	Segment
Segment Reporting Information [Line Items]	'
Number of operating segments	1

Revenues_and_Assets_from_Exter

Revenues and Assets from External Customers (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues from External Customers and Long-Lived Assets [Line Items]

Revenue from external customers

$48,528

$50,396

$53,449

$59,288

[1]

$54,281

$59,573

$58,262

$60,887

[1]

$211,661

$233,003

$224,603

Long-lived assets

25,815

43,823

25,815

43,823

54,047

UNITED STATES

Revenues from External Customers and Long-Lived Assets [Line Items]

Revenue from external customers

209,310

224,931

216,270

Long-lived assets

25,660

43,823

25,660

43,823

54,047

Other countries within Americas reporting unit

Revenues from External Customers and Long-Lived Assets [Line Items]

Revenue from external customers

2,351

8,072

8,333

Other Countries

Revenues from External Customers and Long-Lived Assets [Line Items]

Long-lived assets

$155

[1]

Certain amounts in prior years' financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.

Quarterly_Financial_Data_Detai

Quarterly Financial Data (Detail) (USD $)	1 Months Ended	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Apr. 30, 2013	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data [Line Items]	'	'		'		'		'		'		'		'		'		'	'	'
Revenue	'	$48,528		$50,396		$53,449		$59,288	[1]	$54,281		$59,573		$58,262		$60,887	[1]	$211,661	$233,003	$224,603
Operating expense:	'	'		'		'		'		'		'		'		'		'	'	'
Network and facilities expense (excluding depreciation and amortization)	'	24,151		22,027		24,053		24,636	[1]	26,277		25,546		22,966		23,969	[1]	94,867	98,758	83,324
Operations	'	6,107		7,182		7,508		7,798	[1]	9,701		10,312		8,674		8,794	[1]	28,595	37,481	30,553
Sales and marketing	'	904		1,090		1,526		2,034	[1]	1,837		2,017		1,997		2,181	[1]	5,554	8,032	6,339
General and administrative	'	3,667		6,071		4,535		4,499	[1]	6,368		3,850		5,702		5,249	[1]	18,772	21,169	23,025
Depreciation and amortization	'	3,147		3,293		3,699		4,513	[1]	5,103		5,544		5,371		5,319	[1]	14,652	21,337	20,583
Loss (gain) on sale of assets	'	-34		3		223		'		-2		-55		-4		-109	[1]	192	-170	362
Gain on sale of Americas Data assets	-28,800	-5,620		'		-23,171		'		'		'		'		'		-28,791	'	'
Total operating expense	'	32,322		39,666		18,373		43,480	[1]	117,733		57,471		44,706		45,403	[1]	133,841	265,313	164,186
Income (loss) from operations	'	16,206		10,730		35,076		15,808	[1]	-63,452		2,102		13,556		15,484	[1]	77,820	-32,310	60,417
Carrier settlement	'	'		'		'		'		'		9,000		'		'		'	9,000	'
Impairment of fixed assets	'	'		'		'		'		6,588		1,257		'		'		'	7,845	'
Impairment of goodwill	'	'		'		'		'		44,543		'		'		'		'	44,543	'
Impairment of intangibles	'	'		'		'		'		17,318		'		'		'		'	17,318	'
Other income (expense)	'	'		'		'		'		'		'		'		'		'	'	'
Interest income (expense)	'	-47		1		13		39	[1]	-111		42		49		41	[1]	6	21	39
Other income (expense)	'	1		-4		4		-5	[1]	'		'		1		'		-4	1	-395
16 Total other income (expense) Nonoperating?Income?Expense 34 17 (3) (46)	'	-46		-3		17		34	[1]	-111		42		50		41	[1]	2	22	196
Income (loss) from continuing operations before provision for income taxes	'	16,160		10,727		35,093		15,842	[1]	-63,563		2,144		13,606		15,525	[1]	77,822	-32,288	60,613
Provision (benefit) for income taxes	'	5,000		4,177		741		3,606	[1]	-1,124		-3,596		2,933		3,745	[1]	13,524	1,958	20,508
Income (loss) from continuing operations	'	11,160		6,550		34,352		12,236	[1]	-62,439		5,740		10,673		11,780	[1]	64,298	-34,246	40,105
Income (loss) from discontinued operations, net of provision for income taxes	'	3,294	[2]	-68	[2]	-1,698	[2]	-5,336	[1],[2]	-23,336	[3]	-8,475	[3]	-6,967	[3]	-5,125	[1],[3]	-3,808	-43,903	-13,048
Gain (loss) on sale of discontinued operations, net of provision for income taxes	-4,800	-5,620		-11		794		'		'		'		'		'		-4,837	'	'
Net income (loss)	'	$8,834		$6,471		$33,448		$6,900	[1]	($85,775)		($2,735)		$3,706		$6,655	[1]	$55,653	($78,149)	$27,057
Earnings (loss) per common share-continuing operations-basic	'	$0.35		$0.20		$1.05		$0.38	[1]	($1.99)		$0.18		$0.34		$0.37	[1]	$1.99	($1.11)	$1.22
Earnings (loss) per common share-continuing operations-diluted	'	$0.34		$0.20		$1.05		$0.38	[1]	($1.99)		$0.18		$0.34		$0.37	[1]	$1.97	($1.11)	$1.21
Loss per common share-discontinued operations-basic	'	($0.07)	[2]	'		($0.03)	[2]	($0.17)	[1],[2]	($0.74)	[3]	($0.27)	[3]	($0.22)	[3]	($0.16)	[1],[3]	($0.27)	($1.43)	($0.40)
Loss per common share-discontinued operations-diluted	'	($0.07)	[2]	'		($0.03)	[2]	($0.16)	[1],[2]	($0.74)	[3]	($0.27)	[3]	($0.22)	[3]	($0.16)	[1],[3]	($0.27)	($1.43)	($0.39)
Earnings (loss) per common share-net income (loss)-basic (2)	'	$0.27	[2]	$0.20	[2]	$1.02	[2]	$0.21	[1],[2]	($2.74)	[3]	($0.09)	[3]	$0.12	[3]	$0.21	[1],[3]	$1.72	($2.54)	$0.83
Earnings (loss) per common share-net income (loss)-diluted (2)	'	$0.27	[2]	$0.20	[2]	$1.02	[2]	$0.21	[1],[2]	($2.74)	[3]	($0.09)	[3]	$0.12	[3]	$0.21	[1],[3]	$1.71	($2.54)	$0.82
Weighted average number of shares outstanding-basic:	'	32,194		32,262		31,629		32,337	[1]	31,352		31,993		31,791		31,664	[1]	32,306	30,798	32,780
Weighted average number of shares outstanding-diluted:	'	32,501		32,557		31,629		32,453	[1]	31,352		31,993		32,178		32,058	[1]	32,557	30,798	33,195

[1]	Certain amounts in prior years' financial statements and related notes have been reclassified to conform to the 2013 presentation that reflects discontinued operations.
[2]	Loss from discontinued operations, net of provision for income taxes for the three months ended June 30, 2013 includes only one month of activity as compared to the three months in all preceding three month periods.
[3]	Loss from discontinued operations for the three months ended December 31, 2012 includes a total $21.8 million charge for goodwill, intangible assets and fixed assets impairments.

Quarterly_Financial_Data_Paren

Quarterly Financial Data (Parenthetical) (Detail) (Discontinued Operations, USD $)	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012
Discontinued Operations	'
Quarterly Financial Data [Line Items]	'
Impairment of goodwill, intangible assets and fixed assets	$21.80

Valuation_and_Qualifying_Accou

Valuation and Qualifying Account (Detail) (Allowance for Doubtful Accounts, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Beginning balance	$423	$1,015	'
Charged to Earnings	900	423	1,015
Used	-423	-1,015	'
Ending balance	$900	$423	$1,015