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Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Mar. 31, 2012	Apr. 30, 2012
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Entity Registrant Name	PRIMUS TELECOMMUNICATIONS GROUP INC
Entity Central Index Key	0001006837
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		13,832,067

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Operations [Abstract]
NET REVENUE	$ 234,692	$ 216,952
OPERATING EXPENSES
Cost of revenue (exclusive of depreciation included below)	162,496	146,847
Selling, general and administrative	53,868	53,095
Depreciation and amortization	14,519	14,940
(Gain) loss on sale or disposal of assets	864	53
Goodwill impairment		14,679
Total operating expenses	231,747	229,614
INCOME (LOSS) FROM OPERATIONS	2,945	(12,662)
INTEREST EXPENSE	(7,127)	(8,679)
ACCRETION (AMORTIZATION) ON DEBT PREMIUM/DISCOUNT, net	(57)	(50)
GAIN (LOSS) FROM CONTINGENT VALUE RIGHTS VALUATION	(7,190)	(4,384)
INTEREST INCOME AND OTHER INCOME (EXPENSE), net	158	(87)
FOREIGN CURRENCY TRANSACTION GAIN (LOSS)	4,745	4,048
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(6,526)	(21,814)
INCOME TAX BENEFIT (EXPENSE)	(86)	830
INCOME (LOSS) FROM CONTINUING OPERATIONS	(6,612)	(20,984)
INCOME (LOSS) FROM DISCONTINUED OPERATIONS, net of tax	(140)	362
NET INCOME (LOSS)	(6,752)	(20,622)
Less: Net (income) loss attributable to the noncontrolling interest	(106)	1,367
NET INCOME (LOSS) ATTRIBUTABLE TO PRIMUS TELECOMMUNICATIONS GROUP, INCORPORATED	$ (6,858)	$ (19,255)
BASIC INCOME (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations attributable to Primus Telecommunications Group, Incorporated	$ (0.49)	$ (1.76)
Income (loss) from discontinued operations	(0.01)	0.03
Net income (loss) attributable to Primus Telecommunications Group, Incorporated	(0.50)	(1.73)
DILUTED INCOME (LOSS) PER COMMON SHARE:
Income (loss) from continuing operations attributable to Primus Telecommunications Group, Incorporated	(0.49)	(1.76)
Income (loss) from discontinued operations	(0.01)	0.03
Net income (loss) attributable to Primus Telecommunications Group, Incorporated	$ (0.50)	$ (1.73)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic	13,744	11,148
Diluted	13,744	11,148
AMOUNTS ATTRIBUTABLE TO COMMON SHAREHOLDERS OF PRIMUS TELECOMMUNICATIONS GROUP, INCORPORATED
Income (loss) from continuing operations, net of tax	$ (6,718)	$ (19,617)
INCOME (LOSS) FROM DISCONTINUED OPERATIONS, net of tax	(140)	362
Net income (loss)	$ (6,858)	$ (19,255)

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 46,181	$ 41,052
Accounts receivable (net of allowance for doubtful accounts receivable of $7,397 and $7,552 at March 31, 2012 and December 31, 2011, respectively)	71,880	81,609
Prepaid expenses and other current assets	17,566	15,539
Total current assets	135,627	138,200
RESTRICTED CASH	12,287	11,891
PROPERTY AND EQUIPMENT - Net	152,368	152,180
GOODWILL	71,479	71,902
OTHER INTANGIBLE ASSETS - Net	133,561	135,677
OTHER ASSETS	32,058	33,974
TOTAL ASSETS	537,380	543,824
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Accounts payable	40,724	46,627
Accrued interconnection costs	23,824	24,103
Deferred revenue	12,055	12,258
Accrued expenses and other current liabilities	41,002	44,384
Accrued income taxes	7,876	10,617
Accrued interest	11,150	5,889
Current portion of long-term obligations	2,289	1,948
Total current liabilities	138,920	145,826
LONG-TERM OBLIGATIONS	243,786	245,814
DEFERRED TAX LIABILITY	31,843	31,311
CONTINGENT VALUE RIGHTS	23,386	16,196
OTHER LIABILITIES	2,502	2,971
Total liabilities	440,437	442,118
COMMITMENTS AND CONTINGENCIES (See Note 6)
STOCKHOLDERS' EQUITY (DEFICIT):
Preferred stock, $0.001 par value - 20,000,000 shares authorized; none issued and outstanding
Common stock, $0.001 par value - 80,000,000 shares authorized; 13,846,433 and 13,772,646 shares issued and 13,814,807 and 13,741,020 shares outstanding at March 31, 2012 and December 31, 2011, respectively	14	14
Additional paid-in capital	143,595	142,796
Accumulated deficit	(57,943)	(51,085)
Treasury stock, at cost - 31,626 and 31,626 shares at March 31, 2012 and December 31, 2011, respectively	(378)	(378)
Accumulated other comprehensive income	3,410	2,416
Total stockholders' equity before noncontrolling interest	88,698	93,763
Noncontrolling interest	8,245	7,943
Total stockholders' equity	96,943	101,706
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)	$ 537,380	$ 543,824

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts receivable	$ 7,397	$ 7,552
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	13,846,433	13,772,646
Common stock, shares outstanding	13,814,807	13,741,020
Treasury stock, shares	31,626	31,626

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (6,752)	$ (20,622)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Provision for doubtful accounts receivable	1,344	2,251
Share based compensation expense	1,702	1,082
Depreciation and amortization	14,521	15,124
(Gain) loss on sale or disposal of assets	864	53
Impairment of goodwill and long-lived assets		14,679
Accretion (amortization) of debt premium/discount, net	57	50
Change in fair value of Contingent Value Rights	7,190	4,384
Deferred income taxes	1,158	(406)
Unrealized foreign currency transaction (gain) loss on intercompany and foreign debt	(4,831)	(4,072)
Changes in assets and liabilities, net of acquisitions:
(Increase) decrease in accounts receivable	10,152	1,093
(Increase) decrease in prepaid expenses and other current assets	(1,575)	437
(Increase) decrease in other assets	2,007	(2,068)
Increase (decrease) in accounts payable	(4,735)	(1,554)
Increase (decrease) in accrued interconnection costs	(754)	762
Increase (decrease) in accrued expenses, deferred revenue, other current liabilities and other liabilities, net	(4,528)	(2,946)
Increase (decrease) in accrued income taxes	(3,033)	(570)
Increase (decrease) in accrued interest	5,241	8,283
Net cash provided by operating activities	18,028	15,960
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(8,111)	(6,373)
Cash acquired from business acquisitions, net of cash paid	(1,333)	10,000
Sales of marketable securities		4,087
Increase in restricted cash	(85)	(200)
Net cash (used in) provided by investing activities	(9,529)	7,514
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on long-term obligations	(1,823)	(276)
Payment of fees on restructuring of debt	(1,976)
Proceeds from sale of common stock, net	30	242
Taxes paid in lieu of shares issued for share-based compensation	(92)
Net cash used in financing activities	(3,861)	(34)
EFFECTS OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	491	691
NET CHANGE IN CASH AND CASH EQUIVALENTS	5,129	24,131
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	41,052	41,534
CASH AND CASH EQUIVALENTS, END OF PERIOD	46,181	65,665
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest	1,000	461
Cash paid for taxes	$ 2,225	84
Non-cash investing and financing activities:
Acquisition purchase consideration recorded in working-capital and long-term liabilities		2,804
Business acquisition purchased with Company common stock		$ 50,609

Condensed Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
NET INCOME (LOSS)	$ (6,752)	$ (20,622)
OTHER COMPREHENSIVE INCOME (LOSS)
Foreign currency translation adjustment	1,190	1,186
COMPREHENSIVE INCOME (LOSS)	(5,562)	(19,436)
Less: Comprehensive (income) loss attributable to the noncontrolling interest	(302)	1,268
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO PRIMUS TELECOMMUNICATIONS GROUP, INCORPORATED	$ (5,864)	$ (18,168)

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

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+ Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests, if any. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.

+ References

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

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+ Details

Basis Of Presentation	3 Months Ended
Basis Of Presentation	Mar. 31, 2012
Basis Of Presentation [Abstract]
Basis Of Presentation	1. BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements of Primus Telecommunications Group, Incorporated and subsidiaries ("Primus" or the "Company") have been prepared in accordance with accounting principles generally accepted in the United States for interim financial reporting and Securities and Exchange Commission ("SEC") regulations. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted pursuant to such principles and regulations. In the opinion of management, the financial statements reflect all adjustments (all of which are of a normal and recurring nature), which are necessary to present fairly the financial position, results of operations, cash flows and comprehensive income (loss) for the interim periods. The results for the Company's three months ended March 31, 2012 are not necessarily indicative of the results that may be expected for the year ending December 31, 2012. The results for all periods presented in this Quarterly Report on Form 10-Q reflect the activities of certain operations as discontinued operations (see Note 12—"Discontinued Operations"). The financial statements should be read in conjunction with the Company's audited consolidated financial statements included in the Company's most recently filed Annual Report on Form 10-K. On June 23, 2011, the Company began to trade its common stock on the New York Stock Exchange under the ticker symbol "PTGI." At that time, trading of its common stock on the OTC Bulletin Board under the ticker symbol "PMUG" ceased.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

+ References

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+ Details

Summary Of Significant Accounting Policies

3 Months Ended

Mar. 31, 2012

Summary Of Significant Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation—The condensed consolidated financial statements include the Company's accounts, its wholly-owned subsidiaries and all other subsidiaries over which the Company exerts control. The Company owns 45.6% of Globility Communications Corporation ("Globility") through direct and indirect ownership structures. The results of Globility and its subsidiary are consolidated with the Company's results based on guidance from the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") No. 810, "Consolidation" ("ASC 810"). All intercompany profits, transactions and balances have been eliminated in consolidation.

ASC No. 810 changed the presentation of outstanding noncontrolling interests in one or more subsidiaries or the deconsolidation of those subsidiaries. Reconciliations at the beginning and the end of the period of the total equity, equity attributable to the Company and equity attributable to the noncontrolling interest for the three months ended March 31, 2012 and three months ended March 31, 2011 are as follows (in thousands):


	For the Three Months Ended March 31, 2012
	Primus Telecommunications Group, Incorporated Shareholders
				Common Stock
	Total			Shares		Amount		Additional Paid-In Capital			Treasury Stock			Accumulated Earnings (Deficit)			Accumulated Other Comprehensive Income (Loss)		Noncontrolling Interest
Balance as of December 31, 2011	$	101,706			13,741	$	14	$	142,796		$	(378	)	$	(51,085	)	$	2,416	$	7,943
Share based compensation expense		1,702			—		—		1,702			—			—			—		—
Proceeds from sale of common stock, net		30			74		—		30			—			—			—		—
Shares withheld to satisfy tax withholdings		(933	)		—		—		(933	)		—			—			—		—
Comprehensive income (loss):
Net income (loss)		(6,752	)		—		—		—			—			(6,858	)		—		106
Foreign currency translation adjustment		1,190			—		—		—			—			—			994		196

Comprehensive income (loss)		(5,562	)		—		—		—			—			—			—		—

Balance as of March 31, 2012	$	96,943			13,815	$	14	$	143,595		$	(378	)	$	(57,943	)	$	3,410	$	8,245


	For the Three Months Ended March 31, 2011
	Primus Telecommunications Group, Incorporated Shareholders
				Common Stock
	Total			Shares		Amount		Additional Paid-In Capital			Treasury Stock		Accumulated Earnings (Deficit)			Accumulated Other Comprehensive Income (Loss)		Noncontrolling Interest
Balance as of December 31, 2010	$	83,034			9,801	$	10	$	86,984		$	—	$	(12,355	)	$	4,751	$	3,644
Share based compensation expense		1,082			—		—		1,082			—		—			—		—
Proceeds from sale of common stock, net		222			322		—		222			—		—			—		—
Transaction costs of merger		(925	)		—		—		(925	)		—		—			—		—
Stock consideration issued for merger		50,609			3,233		3		50,606			—		—			—		—
Purchase of treasury stock		—			—		—		—			—		—			—		—
Dividend to noncontrolling interest		—			—		—		—			—		—			—		—
Comprehensive income (loss):
Net income (loss)		(20,622	)		—		—		—			—		(19,255	)		—		(1,367	)
Foreign currency translation adjustment		1,186			—		—		—			—		—			1,087		99

Comprehensive income (loss)		(19,436	)		—		—		—			—		—			—		—

Balance as of March 31, 2011	$	114,586			13,356	$	13	$	137,969		$	—	$	(31,610	)	$	5,838	$	2,376

Discontinued Operations—During 2011, the Company sold its Brazilian segment. The Company has applied retrospective adjustments for the three months ended March 31, 2011 to reflect the effects of the discontinued operations that occurred during 2011. Accordingly, revenue, costs, and expenses of the discontinued operations have been excluded from the respective captions in the condensed consolidated statements of operations. See Note 12, "Discontinued Operations," for further information.

Property and Equipment—Property and equipment are recorded at cost less accumulated depreciation, which is provided on the straight-line method over the estimated useful lives of the assets. Cost includes major expenditures for improvements and replacements which extend useful lives or increase capacity of the assets as well as expenditures necessary to place assets into readiness for use. Expenditures for maintenance and repairs are expensed as incurred. The estimated useful lives of property and equipment are as follows: network equipment—5 to 8 years, fiber optic and submarine cable—8 to 25 years, furniture and equipment—5 years, and leasehold improvements and leased equipment—shorter of lease or useful life. Costs for internal use software that are incurred in the preliminary project stage and in the post-implementation stage are expensed as incurred. Costs incurred during the application development stage are capitalized and amortized over the estimated useful life of the software.

Business Combinations—The Company is required to allocate the purchase price of acquired companies to the tangible and intangible assets acquired and liabilities assumed based on their estimated fair values. This valuation requires management to make significant estimates and assumptions, especially with respect to intangible assets associated with such assets. Critical estimates in valuing certain of the intangible assets and subsequently assessing the realizability of such assets include, but are not limited to, future expected cash flows from the revenues, customer contracts and discount rates. Management's estimates of fair value are based on assumptions believed to be reasonable but which are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate and unanticipated events and circumstances may occur.

Goodwill and Other Intangible Assets—Under ASC No. 350, "Intangibles—Goodwill and Other" ("ASC 350"), goodwill and indefinite lived intangible assets are not amortized but are reviewed annually for impairment, or more frequently, if impairment indicators arise. Intangible assets that have finite lives are amortized over their estimated useful lives and are subject to the provisions of ASC No. 360, "Property, Plant and Equipment" ("ASC 360").

Goodwill impairment is tested at least annually (October 1 for the Company) or when factors indicate potential impairment using a two-step process that begins with an estimation of the fair value of each reporting unit. Step 1 is a screen for potential impairment pursuant to which the estimated fair value of each reporting unit is compared to its carrying value. The Company estimates the fair values of each reporting unit by a combination of (i) estimation of the discounted cash flows of each of the reporting units based on projected earnings in the future (the income approach) and (ii) a comparative analysis of revenue and EBITDA multiples of public companies in similar markets (the market approach). If there is a deficiency (the estimated fair value of a reporting unit is less than its carrying value), a Step 2 test is required.

Step 2 measures the amount of impairment loss, if any, by comparing the implied fair value of the reporting unit goodwill with its carrying amount. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination is determined; through an allocation of the fair value of a reporting unit to all of the assets and liabilities of that unit as if the reporting unit had been acquired in a business combination. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment loss shall be recognized in an amount equal to that excess.

The Company's reporting units are the same as its operating segments, except as discussed in Note 4 related to Arbinet, as each segment's components have been aggregated and deemed a single reporting unit because they have similar economic characteristics. Each component is similar in that each provides telecommunications services for which all of the resources and costs are drawn from the same pool, and are evaluated using the same business factors by management.

Estimating the fair value of a reporting unit requires various assumptions including projections of future cash flows, perpetual growth rates and discount rates. The assumptions about future cash flows and growth rates are based on the Company's assessment of a number of factors, including the reporting unit's recent performance against budget, performance in the market that the reporting unit serves, and industry and general economic data from third party sources. Discount rate assumptions are based on an assessment of the risk inherent in those future cash flows. Changes to the underlying businesses could affect the future cash flows, which in turn could affect the fair value of the reporting unit.

Intangible assets not subject to amortization consist of certain trade names. Such indefinite lived intangible assets are tested for impairment annually, or more frequently if events or changes in circumstances indicate that the asset might be impaired. The impairment test shall consist of a comparison of the fair value of an intangible asset with its carrying amount. If the carrying amount of the intangible asset exceeds its fair value, an impairment loss shall be recognized in an amount equal to the excess.

Intangible assets subject to amortization consist of certain trade names and customer relationships. These finite lived intangible assets are amortized based on their estimated useful lives. Such assets are subject to the impairment provisions of ASC 360, pursuant to which impairment is recognized and measured only if there are events and circumstances that indicate that the carrying amount may not be recoverable. The carrying amount is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use of the asset group. An impairment loss is recorded if after determining that it is not recoverable, the carrying amount exceeds the fair value of the asset.

Derivative Instruments—Pursuant to the terms of the Company's 2009 bankruptcy reorganization (the "Reorganization Plan"), the Company issued to holders of the Company's pre-Reorganization Plan common stock contingent value rights ("CVRs") to receive up to an aggregate of 2,665,000 shares (the "CVR Shares") of the Company's common stock. In connection with the issuance of the CVRs, the Company entered into a Contingent Value Rights Distribution Agreement (the "CVR Agreement"), in favor of holders of CVRs thereunder, dated as of July 1, 2009.

Due to the nature of the CVRs, the Company accounted for the instrument in accordance with ASC No. 815, "Derivatives and Hedging," as well as related interpretations of this standard. The Company determined the CVRs to be derivative instruments to be accounted for as liabilities and marked to fair value at each balance sheet date. Upon issuance, the Company estimated the fair value of its CVRs using a Black-Scholes pricing model and consequently recorded a liability of $2.6 million in the balance sheet caption "other liabilities" as part of fresh-start accounting. Post-issuance change in value is reflected in the condensed consolidated statements of operations as gain (loss) from contingent value rights valuation. The Company's estimates of fair value of its CVRs are correlated to and reflective of the Company's common stock price trends; in general, as the value of the Company's common stock increases, the estimated fair value of the CVRs also increases and, as a result, the Company recognizes a change in value of its CVRs as loss from contingent value rights valuation. Conversely and also in general, as the value of the Company's common stock decreases, the estimated fair value of the CVRs also decreases and as a result the Company would recognize a change in value of the CVRs as gain from contingent value rights valuation. See Note 10—"Fair Value of Financial Instruments and Derivatives."

Use of Estimates—The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of net revenue and expenses during the reporting period. Actual results may differ from these estimates. Significant estimates include allowance for doubtful accounts receivable, accrued interconnection cost disputes, the fair value of derivatives, market assumptions used in estimating the fair values of certain assets and liabilities, the calculation used in determining the fair value of the Company's stock options required by ASC No. 718, "Compensation—Stock Compensation," income taxes and various tax contingencies.

Estimates of fair value represent the Company's best estimates developed with the assistance of independent appraisals or various valuation techniques including Black-Scholes and, where the foregoing have not yet been completed or are not available, industry data and trends and by reference to relevant market rates and transactions. The estimates and assumptions are inherently subject to significant uncertainties and contingencies beyond the control of the Company. Accordingly, the Company cannot provide assurance that the estimates, assumptions, and values reflected in the valuations will be realized, and actual results could vary materially. Any adjustments to the recorded fair values of these assets and liabilities, as related to business combinations, may impact the amount of recorded goodwill.

Reclassification—Certain previous year amounts have been reclassified to conform with current year presentations, as related to the reporting of the Company's discontinued operations.

Newly Adopted Accounting Principles

In May 2011, an update was issued to the Fair Value Measurement Topic ASC 820, ASU 2011-04, "Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs," which provides guidance on how to measure fair value and on what disclosures to provide about fair value measurements. It seeks to develop a single, converged fair value framework between the FASB and the International Financial Reporting Standards ("IFRS") Board. On January 1, 2012, the Company adopted this update, which did not have a material impact on the condensed consolidated financial statements.

In June 2011, an update was issued to the Comprehensive Income Topic ASC 220, ASU 2011-05, "Presentation of Comprehensive Income," which provides guidance to all entities that report items of other comprehensive income, in any period presented. Under the amendments in this update, an entity has the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. In a single continuous statement, the entity is required to present the components of net income and total net income, the components of other comprehensive income and a total for other comprehensive income, along with the total of comprehensive income in that statement. In the two-statement approach, an entity is required to present components of net income and total net income in the statement of net income. The statement of other comprehensive income should immediately follow the statement of net income and include the components of other comprehensive income and a total for other comprehensive income, along with a total for comprehensive income. ASU 2011-05 also contains a provision that requires the entity to present on the face of the financial statements reclassification adjustments for items that are reclassified from other comprehensive income to net income in the statements where the components of net income and the components of other comprehensive income are presented. In December 2011, an update was issued to the Comprehensive Income Topic ASC 220, ASU 2011-12, "Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05," which indefinitely deferred the requirement to present the reclassification adjustments out of other comprehensive income. On January 1, 2012, the Company adopted these updates, which did not have a material impact on the condensed consolidated financial statements.

In September 2011, an update was issued to the Intangibles—Goodwill and Other Topic ASC 350, ASU 2011-08, "Testing Goodwill for Impairment," which provides guidance to all entities, both public and nonpublic, that have goodwill reported in their financial statements. Under the amendments in this update, an entity has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, an entity determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. However, if an entity concludes otherwise, then it is required to perform the first step of the two-step impairment test by calculating the fair value of the reporting unit and comparing the fair value with the carrying amount of the reporting unit. If the carrying amount of a reporting unit exceeds its fair value, then the entity is required to perform the second step of the goodwill impairment test to measure the amount of the impairment loss. An entity has the option to bypass the qualitative assessment for any reporting unit in any period and proceed directly to performing the first step of the two-step goodwill impairment test. An entity may resume performing the qualitative assessment in any subsequent period. On January 1, 2012, the Company adopted this update, which did not have a material impact on the condensed consolidated financial statements.

Acquisitions

3 Months Ended

Mar. 31, 2012

Acquisitions [Abstract]

Acquisitions

3. ACQUISITIONS

Arbinet Corporation Acquisition

On February 28, 2011, the Company completed its previously announced acquisition of Arbinet Corporation, a Delaware corporation ("Arbinet"). Arbinet is a provider of wholesale telecom exchange services to carriers, and the Company purchased Arbinet to supplement its existing International Carrier Services ("ICS") operations. Pursuant to the terms of the Agreement and Plan of Merger dated as of November 10, 2010, as amended by Amendment No. 1 dated December 14, 2010, by and among Primus, PTG Investments, Inc., a Delaware corporation and a wholly-owned subsidiary of Primus ("Merger Sub"), and Arbinet, Merger Sub merged with and into Arbinet with Arbinet surviving the merger as a wholly-owned subsidiary of Primus.

Upon the closing of the merger, each share of Arbinet common stock was cancelled and converted into the right to receive 0.5817 shares of Primus common stock. Arbinet stockholders received cash in lieu of any fractional shares of Primus common stock that they were otherwise entitled to receive in the merger. In connection with the merger, Primus issued 3,232,812 shares of its common stock to former Arbinet stockholders in exchange for their shares of Arbinet common stock, and reserved for issuance approximately 95,000 additional shares of its common stock in connection with its assumption of Arbinet's outstanding options, warrants, stock appreciation rights and restricted stock units.

The components of the consideration transferred follow (in thousands):


Consideration attributable to stock issued (1)	$	50,432
Consideration attributable to earned replaced equity awards (2)		177

Total consideration transferred	$	50,609

(1)	The fair value of the Company's common stock on the acquisition date was $15.60 per share based on the closing value of its common stock traded on the over-the-counter bulletin board. The Company issued 3,232,812 shares of stock to effect this merger.

(2)

The portion of the acquisition fair value of Arbinet converted stock-based awards attributable to pre-merger employee service was part of consideration. At the merger closing 50% of the unvested and outstanding Arbinet awards vested. The portion of the fair value-based measure of the replaced awards assigned to past services (including those for which vesting accelerated at the merger closing and those that were already vested at the date of the merger closing) was included in the consideration transferred.

Recording of Assets Acquired and Liabilities Assumed

The transaction was accounted for using the acquisition method of accounting which requires, among other things, that assets acquired and liabilities assumed be recognized at their estimated fair values as of the acquisition date.

Estimates of fair value included in the financial statements, in conformity with ASC No. 820, "Fair Value Measurements and Disclosures" ("ASC 820"), represent the Company's best estimates and valuations developed with the assistance of independent appraisers. The estimates and assumptions are inherently subject to significant uncertainties and contingencies beyond the control of the Company. Accordingly, the Company cannot provide assurance that the estimates, assumptions, and values reflected in the valuations will be realized, and actual results could vary materially. In accordance with ASC No. 805, "Business Combinations" ("ASC 805"), the allocation of the consideration value was completed on February 28, 2012, the one year anniversary of the date of the acquisition.

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed (in thousands):


Cash and cash equivalents	$	12,415
Marketable securities		4,044
Accounts receivable		16,205
Other current assets		884
Property and equipment ⁽¹⁾		17,336
Intercompany receivable		309
Goodwill ⁽²⁾		20,585
Customer list ⁽³⁾		900
Exchange license ⁽³⁾		2,800
Other intangible assets ⁽³⁾		700
Other assets		1,738

Total assets acquired	$	77,916

Trade payables	$	18,311
Accrued interconnection costs		105
Accrued liabilities		3,122
Other current liabilities		3,082
Current portion of long-term obligations		68
Long-term obligations		99
Other long-term liabilities		2,520

Total liabilities assumed	$	27,307

Net assets acquired	$	50,609

(1)

Property and equipment were measured primarily using an income approach. The fair value measurements of the assets were based, in part, on significant inputs not observable in the market and thus represent a Level 3 measurement. The significant inputs included Arbinet resources, assumed future revenue profiles, weighted average cost of capital of 13.0%, gross margin of 7.2% and assumptions on the timing and amount of future development and operating costs. The property and equipment additions were segmented as part of a new stand-alone reporting unit which will be aggregated with ICS when integration activities are substantially complete.

(2)

Goodwill was the excess of the consideration transferred over the net assets recognized and represents the future economic benefits, primarily as a result of expected synergies expected from the combination, arising from other assets acquired that could not be individually identified and separately recognized. Goodwill was recognized as part of a new stand-alone reporting unit which will be aggregated with ICS when integration activities are substantially complete. Goodwill is not amortized and is not deductible for tax purposes.

(3)

Identifiable intangible assets and other assets were measured using a combination of an income approach and a market approach (Level 3). Identifiable intangible assets are subject to amortization and the customer list and exchange license are being amortized over 15 years and 10 years, respectively.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 88-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51, 52
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Appendix F
-Paragraph F4
-Subparagraph e

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 67-73
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6911361&loc=d3e6927-128479

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Goodwill And Other Intangible Assets

3 Months Ended

Mar. 31, 2012

Goodwill And Other Intangible Assets [Abstract]

Goodwill And Other Intangible Assets

4. GOODWILL AND OTHER INTANGIBLE ASSETS

On February 28, 2011, the Company acquired Arbinet for stock consideration of $50.6 million in a stock for stock transaction. See Note 3—"Acquisitions." Because the Company's stock price rose significantly between the signing of the merger agreement on November 10, 2010 and the close of the merger on February 28, 2011 from a closing price of $9.57 per share to $15.60 per share, the fixed-share consideration fair value also rose. Because Arbinet's enterprise value may not have increased within similar levels over that time period, the Company determined that a goodwill impairment assessment was immediately necessary post-merger. On the day of the merger, Arbinet was a stand-alone business with its own cash flows and management structure, and the Company evaluated it as a separate reporting unit. The Company determined the preliminary enterprise value of Arbinet to be $36.2 million, which was less than the carrying value of $50.6 million. For Step 2 of the testing, the fair value of the assets acquired and liabilities assumed was deemed to be equal to that which was used for the purchase price allocation. Based on an enterprise value of $36.2 million and the fair value of the assets acquired and liabilities assumed at purchase, the company calculated $4.7 million of implied goodwill. Because the carrying value of goodwill was greater than the implied goodwill, $14.7 million was recorded as "Goodwill impairment" on the Company's condensed consolidated statements of operations. Post acquisition, Arbinet was integrated into the Company's ICS segment; see Note 11 "Operating Segment and Related Information."

The Company's intangible assets not subject to amortization consisted of the following (in thousands):


	March 31, 2012		December 31, 2011
Goodwill	$	71,479	$	71,902
Trade names	$	76,900	$	76,900

The changes in the carrying amount of goodwill and trade names by reporting unit for the three months ended March 31, 2012 are as follows (in thousands):

Goodwill


	United States			Canada		Australia		Total
Balance as of December 31, 2011	$	37,146		$	32,819	$	1,937	$	71,902
Effect of change in foreign currency exchange rates		—			805		52		857
Acquisition (disposition) of business		(1,280	)		—		—		(1,280	)

Balance as of March 31, 2012	$	35,866		$	33,624	$	1,989	$	71,479

Trade Names


	United States		Canada		Australia		Total
Balance as of December 31, 2011	$	76,900	$	—	$	—	$	76,900
Effect of change in foreign currency exchange rates		—		—		—		—

Balance as of March 31, 2012	$	76,900	$	—	$	—	$	76,900

Intangible assets subject to amortization consisted of the following (in thousands):


	March 31, 2012							December 31, 2011
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Trade names	$	3,500	$	(877	)	$	2,623	$	3,500	$	(790	)	$	2,710
License		2,800		(303	)		2,497		2,800		(233	)		2,567
Customer relationships		108,718		(57,177	)		51,541		106,199		(52,699	)		53,500

Total	$	115,018	$	(58,357	)	$	56,661	$	112,499	$	(53,722	)	$	58,777

Amortization expense for trade names and customer relationships for the three months ended March 31, 2012 and 2011 was $3.4 million and $4.6 million, respectively.

The Company expects amortization expense for trade names and customer relationships for the remainder of 2012, the years ending December 31, 2013, 2014, 2015, 2016, and thereafter to be approximately $11.9 million, $10.4 million, $7.3 million, $5.6 million, $4.4 million and $17.1 million, respectively.

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Long-Term Obligations

3 Months Ended

Mar. 31, 2012

Long-Term Obligations [Abstract]

Long-Term Obligations

5. LONG-TERM OBLIGATIONS

Long-term obligations consisted of the following (in thousands):


	March 31, 2012			December 31, 2011
Obligations under capital leases and other	$	9,953		$	11,696
13% Senior Secured Notes due 2016		2,403			2,403
10% Senior Secured Notes due 2017		235,231			235,231

Subtotal	$	247,587		$	249,330
Original issue discount on Senior Secured Notes		(1,512	)		(1,568	)

Subtotal	$	246,075		$	247,762
Less: Current portion of long-term obligations		(2,289	)		(1,948	)

Total long-term obligations	$	243,786		$	245,814

The following table reflects the contractual payments of principal and interest for the Company's long-term obligations as of March 31, 2012:


Year Ending December 31,	Capital Leases and Other			10% Senior Secured Notes due 2017			13% Senior Secured Notes due 2016			Total
2012 (as of March 31, 2012)	$	235		$	23,523		$	312		$	24,070
2013		3,217			23,523			312			27,052
2014		3,021			23,523			312			26,856
2015		3,000			23,523			312			26,835
2016		3,000			23,523			2,716			29,239
Thereafter		—			242,092			—			242,092

Total minimum principal & interest payments		12,473			359,707			3,964			376,144
Less: Amount representing interest		(2,520	)		(124,476	)		(1,561	)		(128,557	)

Total long-term obligations	$	9,953		$	235,231		$	2,403		$	247,587

Exchange Offers

On July 7, 2011, in connection with the consummation of the private (i) exchange offers (the "Exchange Offers") for any and all outstanding Units representing the 13% Senior Secured Notes due 2016 (the "13% Notes") issued by Primus Telecommunications Holding, Inc. ("Holding") and Primus Telecommunications Canada Inc. ("Primus Canada"), and the 14¹/4% Senior Subordinated Secured Notes due 2013 (the "14¹/4% Notes") issued by Primus Telecommunications IHC, Inc. ("IHC"), (ii) consent solicitation (the "Consent Solicitation") to amend the indenture governing the 13% Notes and release the collateral securing the 13% Notes, and (iii) related transactions, Holding issued $240.2 million aggregate principal amount of 10% Senior Secured Notes due 2017 (the "10% Notes"). An aggregate of $228.6 million principal amount of 10% Notes was issued pursuant to the Exchange Offers, and Holding issued an additional $11.6 million aggregate principal amount of 10% Notes for cash, the proceeds of which were used to redeem all 14¹/4% Notes that were not exchanged pursuant to the Exchange Offers and thereby discharge all of the Company's obligations with respect to the 14¹/4% Notes. In connection with the Exchange Offers, the Company also incurred $6.9 million of third party costs which are included in gain (loss) on early extinguishment or restructuring of debt on the condensed consolidated statement of operations in the third quarter of 2011.

10% Senior Secured Notes due 2017

As of March 31, 2012, there was $235.2 million principal amount of the 10% Notes outstanding. The 10% Notes bear interest at a rate of 10.00% per annum, payable semi-annually in arrears in cash on April 15 and October 15 of each year, commencing October 15, 2011. The 10% Notes will mature on April 15, 2017. In December 2011, the Company repurchased $5.0 million in aggregate principal amount of the 10% Notes at 99% of face value.

13% Senior Secured Notes due 2016

As of March 31, 2012, there was $2.4 million principal amount of the 13% Notes outstanding. The 13% Notes bear interest at a rate of 13.00% per annum, payable semi-annually in arrears in cash on June 15 and December 15 of each year. The 13% Notes will mature on December 16, 2016.

Commitments And Contingencies

3 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Commitments And Contingencies

6. COMMITMENTS AND CONTINGENCIES

Future minimum lease payments under capital leases and other purchase obligations and non-cancellable operating leases as of March 31, 2012 are as follows (in thousands):


Year Ending December 31,	Capital Leases and Other			Purchase Obligations		Operating Leases
2012 (as of March 31, 2012)	$	235		$	5,853	$	15,260
2013		3,217			3,946		17,019
2014		3,021			3,389		12,379
2015		3,000			41		9,985
2016		3,000			—		6,843
Thereafter		—			—		23,265

Total minimum principal & interest payments		12,473			13,229		84,751
Less: Amount representing interest		(2,520	)		—		—

Total long-term obligations	$	9,953		$	13,229	$	84,751

The Company has contractual obligations to utilize an external vendor for certain customer support functions and to utilize network facilities from certain carriers with terms greater than one year. Generally, the Company does not purchase or commit to purchase quantities in excess of normal usage or amounts that cannot be used within the contract term or at rates below or above market value. The Company made payments under purchase commitments of $2.7 million and $8.1 million for the three months ended March 31, 2012 and 2011, respectively.

The Company's rent expense under operating leases was $4.1 million and $4.1 million for the three months ended March 31, 2012 and 2011, respectively.

Litigation

The Company and its subsidiaries are subject to claims and legal proceedings that arise in the ordinary course of business. Each of these matters is inherently uncertain, and there can be no guarantee that the outcome of any such matter will be decided favorably to the Company or its subsidiaries or that the resolution of any such matter will not have a material adverse effect upon the Company's business, condensed consolidated financial position, results of operations or cash flow. The Company does not believe that any of these pending claims and legal proceedings will have a material adverse effect on its business, condensed consolidated financial position, results of operations or cash flow.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Share-Based Compensation

3 Months Ended

Mar. 31, 2012

Share-Based Compensation [Abstract]

Share-Based Compensation

7. SHARE-BASED COMPENSATION

The Compensation Committee (the "Committee") of the Board of Directors of the Company administers the Management Compensation Plan. The Committee has broad authority to administer, construe and interpret the Management Compensation Plan; however, it may not take any action with respect to an award that would be treated, for accounting purposes, as a "repricing" of an award unless the action is approved by the shareholders of the Company.

The Management Compensation Plan provides for the grant of incentive stock options, nonqualified stock options, restricted stock, restricted stock units, and other stock-based or cash-based performance awards (collectively, "awards"). The Company typically issues new shares of common stock upon the exercise of stock options, as opposed to using treasury shares.

The Company follows guidance which addresses the accounting for stock-based payment transactions whereby an entity receives employee services in exchange for either equity instruments of the enterprise or liabilities that are based on the fair value of the enterprise's equity instruments or that may be settled by the issuance of such equity instruments. The guidance generally requires that such transactions be accounted for using a fair-value based method and share-based compensation expense be recorded, based on the grant date fair value, estimated in accordance with the guidance, for all new and unvested stock awards that are ultimately expected to vest as the requisite service is rendered.

No options were granted during the three months ended March 31, 2012 and 2011.

Total share-based compensation expense recognized by the Company in the three months ended March 31, 2012 and 2011 was $1.7 million and $1.1 million, respectively. Most of the Company's stock awards vest ratably during the vesting period. The Company recognizes compensation expense for equity awards, reduced by estimated forfeitures, using the straight-line basis.

Restricted Stock Units (RSUs)

A summary of the Company's restricted stock units activity during the three months ended March 31, 2012 is as follows:


	Three Months Ended March 31, 2012
	Shares			Weighted Average Grant Date Fair Value
Unvested – December 31, 2011		651,394		$	13.01
Granted		—		$	—
Vested		(205,674	)	$	12.52
Forfeitures		—		$	—

Unvested – March 31, 2012		445,720		$	13.23

As of March 31, 2012, the Company had 0.4 million unvested RSUs outstanding with respect to $3.3 million of compensation expense that is expected to be recognized over the weighted average remaining vesting period of 1.7 years. The number of unvested RSUs expected to vest is 0.4 million.

Stock Options and Stock Appreciation Rights

A summary of the Company's stock option and stock appreciation rights activity during the three months ended March 31, 2012 is as follows:


	Three Months Ended March 31, 2012
	Shares		Weighted Average Exercise Price
Outstanding – December 31, 2011		129,080	$	11.34
Granted		—	$	—
Exercised		—	$	—
Forfeitures		—	$	—

Outstanding – March 31, 2012		129,080	$	11.34

Eligible for exercise		90,838	$	11.49

The following table summarizes the intrinsic values and remaining contractual terms of the Company's stock options and stock appreciation rights:


	Intrinsic Value		Weighted Average Remaining Life in Years
Options outstanding – March 31, 2012	$	629,446		8.1
Options exercisable – March 31, 2012		434,048		7.7

As of March 31, 2012, the Company had approximately 38,000 unvested stock options and stock appreciation rights outstanding of which $0.1 million of compensation expense is expected to be recognized over the weighted average remaining period of 1.2 years. The number of unvested stock options and stock appreciation rights expected to vest is approximately 35,000 shares, with a weighted average remaining life of 8.1 years, a weighted average exercise price of $11.34, and an intrinsic value of approximately $0.2 million.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Stockholders' Equity (Deficit)	3 Months Ended
Stockholders' Equity (Deficit)	Mar. 31, 2012
Stockholders' Equity (Deficit) [Abstract]
Stockholders' Equity (Deficit)	8. STOCKHOLDERS' EQUITY (DEFICIT) As of March 31, 2012, there are 13,814,807 shares of common stock outstanding. On August 8, 2011, the Company's board of directors authorized a stock repurchase program of up to $15 million of its common stock through August 8, 2013. Under the stock repurchase program, the Company may repurchase common stock from time to time in the open-market, privately negotiated transactions or block trades. There is no guarantee as to the exact number of shares, if any, that the Company will repurchase. The stock repurchase program may be modified, terminated or extended at any time without prior notice. The Company has established a committee consisting of its lead director, chief executive officer and chief financial officer to oversee the administration of the stock repurchase program. During the year ended December 31, 2011, the Company repurchased 31,626 shares at a weighted average price of $11.92 per share under the stock repurchase plan.

- Definition

The entire disclosure for shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, if any, including other comprehensive income (as applicable). Including, but not limited to: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; (4) rights and privileges of each class of stock authorized; (5) basis of treasury stock, if other than cost, and amounts paid and accounting treatment for treasury stock purchased significantly in excess of market; (6) dividends paid or payable per share and in the aggregate for each class of stock for each period presented; (7) dividend restrictions and accumulated preferred dividends in arrears (in aggregate and per share amount); (8) retained earnings appropriations or restrictions, such as dividend restrictions; (9) impact of change in accounting principle, initial adoption of new accounting principle and correction of an error in previously issued financial statements; (10) shares held in trust for Employee Stock Ownership Plan (ESOP); (11) deferred compensation related to issuance of capital stock; (12) note received for issuance of stock; (13) unamortized discount on shares; (14) description, terms, and number of warrants or rights outstanding; (15) shares under subscription and subscription receivables, effective date of new retained earnings after quasi-reorganization and deficit eliminated by quasi-reorganization and, for a period of at least ten years after the effective date, the point in time from which the new retained dates; and (16) retroactive effective of subsequent change in capital structure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 4
-Section 08
-Paragraph d

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 3, 4, 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 08
-Article 4

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30, 31
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 22: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Income Taxes

3 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income Taxes

9. INCOME TAXES

The Company conducts business globally, and as a result, the Company or one or more of its subsidiaries files income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions. In the normal course of business the Company is subject to examination by taxing authorities throughout the world.

The following table summarizes the open tax years for each major jurisdiction:


Jurisdiction	Open Tax Years

United States Federal		2002 – 2011
Australia		2002 – 2011
Canada		2004 – 2011
United Kingdom		2004 – 2011
Netherlands		2007 – 2011

The Company is currently under examination in Canada and certain other foreign tax jurisdictions, which, individually and in the aggregate, are not material.

The Company adopted the provisions of ASC No. 740, "Income Taxes" on January 1, 2007. It is expected that the amount of unrecognized tax benefits, reflected in the Company's financial statements, will change in the next twelve months; however, the Company does not expect the change to have a significant impact on the results of operations or the financial position of the Company. During the three months ended March 31, 2012, penalties and interest were immaterial. As of March 31, 2012, the gross unrecognized tax benefit on the balance sheet was $84.7 million.

Pursuant to Section 382 of the Internal Revenue Code ("IRC Sec. 382"), the Company believes that it underwent an ownership change for tax purposes on February 28, 2011, the Arbinet acquisition date. This conclusion is based on Schedule 13D and Schedule 13G filings concerning Company securities, as filed with the United States Securities and Exchange Commission. A previous ownership change took place on July 1, 2009, as a result of the emergence from bankruptcy under the Reorganization Plan. As a result, the use of the Company's net operating losses will be subject to an annual limitation under IRC Sec. 382 of approximately $1.6 million. The annual limitation under Section 382 of Arbinet's pre-February 28, 2011, net operating losses is approximately $2.2 million.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Fair Value Of Financial Instruments And Derivatives

3 Months Ended

Mar. 31, 2012

Fair Value Of Financial Instruments And Derivatives [Abstract]

Fair Value Of Financial Instruments And Derivatives

10. FAIR VALUE OF FINANCIAL INSTRUMENTS AND DERIVATIVES

The carrying amounts reported in the condensed consolidated balance sheets for cash and cash equivalents, restricted cash, accounts receivable and accounts payable approximate fair value due to relatively short periods to maturity. The estimated aggregate fair value of the Company's debt, based on quoted market prices, was $253.0 million and $235.4 million at March 31, 2012 and December 31, 2011, respectively. The aggregate carrying value of the Company's debt was $236.1 million and $236.1 million at March 31, 2012 and December 31, 2011, respectively.

See table below for a summary of the Company's financial instruments accounted for at fair value on a recurring basis:

		0000000000000000		0000000000000000		0000000000000000		0000000000000000
			Fair Value as of March 31, 2012, using:
	March 31, 2012		Quoted prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Contingent Value Rights (CVRs)	$	23,386		—		23,386		—

Total	$	23,386		—		23,386		—

		000000000000		000000000000		000000000000		000000000000
			Fair Value as of December 31, 2011, using:
	December 31, 2011		Quoted prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Contingent Value Rights (CVRs)	$	16,196		—		16,196		—

Total	$	16,196		—		16,196		—

The CVRs are marked to fair value at each balance sheet date. The change in value is reflected in our condensed consolidated statements of operations. Estimates of fair value represent the Company's best estimates based on a Black-Scholes pricing model using the following assumptions: (1) expected life of 7.25 years; (2) risk-free rate of 1.66%; (3) expected volatility of 47.93%; (4) dividend yield of 0%; (5) exercise price of $35.95; (6) stock price of $16.08. During the three months ended March 31, 2012 and 2011, $7.2 million and $4.4 million, respectively, of expense was recognized as a result of marking the CVRs to their fair value.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 21
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19296-110258

+ Details

Operating Segment And Related Information

3 Months Ended

Mar. 31, 2012

Operating Segment And Related Information [Abstract]

Operating Segment And Related Information

11. OPERATING SEGMENT AND RELATED INFORMATION

The Company has four reportable geographic segments—United States, Canada, Asia-Pacific and Europe. The Company has five reportable operating segments based on management's organization of the enterprise—United States, Canada, Australia, the ICS business from the United States and Europe, which is managed as a separate global segment, into which Arbinet is integrated, and Other. The Company evaluates the performance of its segments and allocates resources to them based upon net revenue and income (loss) from operations. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. Net revenue by geographic segment is reported on the basis of where services are provided. All inter-segment revenues are eliminated. The Company has no single customer representing greater than 10% of its revenues. Corporate assets, capital expenditures and property and equipment are included in the United States segment, while corporate expenses are presented separately in income (loss) from operations. The assets of the ICS business are indistinguishable from the respective geographic segments. Therefore, any reporting related to the ICS business for assets or other balance sheet items is impractical.

Summary information with respect to the Company's operating segments is as follows (in thousands):


	Three Months Ended March 31, 2012			Three Months Ended March 31, 2011
Net Revenue by Geographic Region
United States	$	43,297		$	39,550
Canada		57,906			60,836
Asia-Pacific		70,158			71,926
Europe		63,331			44,640

Total	$	234,692		$	216,952

Net Revenue by Segment
United States	$	10,096		$	11,183
Canada		57,906			60,836
Australia		70,129			71,732
International Carrier Services		96,561			73,023
Other		—			178

Total	$	234,692		$	216,952

Provision for Doubtful Accounts Receivable
United States	$	92		$	486
Canada		335			813
Australia		656			697
International Carrier Services		261			166
Other		—			—

Total	$	1,344		$	2,162

Income (Loss) from Operations
United States	$	847		$	415
Canada		5,688			4,527
Australia		5,682			3,746
International Carrier Services		(2,438	)		(16,577	)
Other		—			(26	)

Total From Operating Segments		9,779			(7,915	)
Corporate		(6,834	)		(4,747	)

Total	$	2,945		$	(12,662	)

Capital Expenditures
United States	$	535		$	232
Canada		4,605			2,589
Australia		2,379			3,079
International Carrier Services		592			276
Other		—			197

Total	$	8,111		$	6,373

The above capital expenditures exclude assets acquired under terms of capital lease and vendor financing obligations.


	March 31, 2012		December 31, 2011
Property and Equipment – Net
United States	$	16,449	$	17,139
Canada		56,469		54,674
Europe		2,889		3,074
Asia-Pacific		76,561		77,293
Other		—		—

Total	$	152,368	$	152,180


	March 31, 2012		December 31, 2011
Assets
United States	$	136,076	$	133,364
Canada		192,388		194,531
Europe		48,656		54,998
Asia-Pacific		160,260		160,931
Other		—		—

Total	$	537,380	$	543,824

The Company offers four main products—Retail voice, ICS, Data/Internet and Retail VoIP. Net revenue information with respect to the Company's products is as follows (in thousands):


	Three Months Ended March 31, 2012		Three Months Ended March 31, 2011
Retail voice	$	83,539	$	90,364
International carrier services		96,561		73,023
Data/Internet		46,574		45,687
Retail VoIP		8,018		7,878

Total	$	234,692	$	216,952

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599

+ Details

Discontinued Operations

3 Months Ended

Mar. 31, 2012

Discontinued Operations [Abstract]

Discontinued Operations

12. DISCONTINUED OPERATIONS

Discontinued Operations – year ended December 31, 2011

As discussed in Note 2, during the fourth quarter of 2011, the Company sold its Brazilian segment for $4.3 million. The Company recorded a $4.8 million loss from the sale of this segment during the fourth quarter of 2011.

Summarized operating results of the discontinued operations are as follows (in thousands):


	Three Months Ended March 31, 2012			Three Months Ended March 31, 2011
Net revenue	$	—		$	6,789
Operating expenses		140			6,769

Income (loss) from operations		(140	)		20
Interest expense		—			(15	)
Interest income and other income (expense)		—			367
Foreign currency transaction gain (loss)		5			(10	)

Income (loss) before income tax		(135	)		362
Income tax (expense) benefit		(5	)		—

Income (loss) from discontinued operations	$	(140	)	$	362

- Definition

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43-48
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1020-107759

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1012-107759

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Name Accounting Standards Codification
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1474-107760

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6390789&loc=d3e2443-110228

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

+ Details

Basic And Diluted Income (Loss) Per Common Share

3 Months Ended

Mar. 31, 2012

Basic And Diluted Income (Loss) Per Common Share [Abstract]

Basic And Diluted Income (Loss) Per Common Share

13. BASIC AND DILUTED INCOME (LOSS) PER COMMON SHARE

Basic income (loss) per common share is calculated by dividing income (loss) attributable to common stockholders by the weighted average common shares outstanding during the period. Diluted income per common share adjusts basic income per common share for the effects of potentially dilutive common share equivalents.

Potentially dilutive common shares include the dilutive effects of common shares issuable under the Management Compensation Plan, including stock options, stock warrants and restricted stock units (RSUs), using the treasury stock method, as well as contingent value rights (CVRs).

The Company had no dilutive common share equivalents during the three months ended March 31, 2012, due to the results of operations being a net loss. For the three months ended March 31, 2012, the following were potentially dilutive but were excluded from the calculation of diluted loss per common share due to their antidilutive effect:

•

0.6 million shares issuable upon exercise of stock options and RSUs under the Management Compensation Plan;

•

4.5 million shares issuable upon exercise of stock warrants; and

•

2.7 million shares issuable upon exercise of CVRs.

The Company had no dilutive common share equivalents during the three months ended March 31, 2011, due to the results of operations being a net loss. For the three months ended March 31, 2011, the following were potentially dilutive but were excluded from the calculation of diluted loss per common share due to their antidilutive effect:

•

0.7 million shares issuable upon exercise of stock options and RSUs under the Management Compensation Plan;

•

4.5 million shares issuable upon exercise of stock warrants; and

•

2.7 million shares issuable upon exercise of CVRs.

A calculation of basic income (loss) per common share to diluted income (loss) per common share is set forth below (in thousands, except per share amounts):


	Three Months Ended March 31, 2012			Three Months Ended March 31, 2011
Income (loss) from continuing operations, net of tax	$	(6,718	)	$	(19,617	)
Income (loss) from discontinued operations, net of tax		(140	)		362

Net income (loss) attributable to common stockholders-basic	$	(6,858	)	$	(19,255	)

Net income (loss) attributable to common stockholders-diluted	$	(6,858	)	$	(19,255	)

Weighted average common shares outstanding-basic		13,744			11,148

Weighted average common shares outstanding-diluted		13,744			11,148

Basic income (loss) per common share:
Income (loss) from continuing operations attributable to common stockholders	$	(0.49	)	$	(1.76	)
Income (loss) from discontinued operations		(0.01	)		0.03

Net income (loss) attributable to common stockholders	$	(0.50	)	$	(1.73	)

Diluted income (loss) per common share:
Income (loss) from continuing operations attributable to common stockholders	$	(0.49	)	$	(1.76	)
Income (loss) from discontinued operations		(0.01	)		0.03

Net income (loss) attributable to common stockholders	$	(0.50	)	$	(1.73	)

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	14. SUBSEQUENT EVENTS Pending Divestiture of Primus Australia On April 16, 2012, the Company announced that the Company and Primus Telecommunications International, Inc. ("PTII"), an indirect wholly owned subsidiary of the Company, have entered into a definitive Equity Purchase Agreement, dated April 15, 2012 (the "Purchase Agreement"), with M2 Telecommunications Group Ltd. ("M2"), an Australian telecommunications company. Subject to the terms and conditions of the Purchase Agreement, PTII has agreed to sell to M2 100% of the outstanding equity of Primus Telecom Holdings Pty Ltd. ("Primus Australia"), a direct wholly owned subsidiary of PTII, for approximately $AUD 192.4 million (or approximately $US 200.0 million, assuming FX spot rate as of April 13, 2012 of $AUD/$US 1.0396). The purchase price is subject to a customary post-closing net working capital adjustment. The transaction has been approved by the Company's Board of Directors and the special committee of the Board of Directors previously established to explore and evaluate strategic alternatives to enhance shareholder value. The transaction does not require stockholder approval, but is subject to the satisfaction or waiver of customary closing conditions for a transaction of this nature. The transaction is not subject to any financing condition. The transaction is currently expected to close in the second quarter of 2012. In connection with the closing of the transaction, $AUD 10 million (the "Retention Amount") will be retained from the purchase price and placed in escrow for a period of twelve months following the closing date of the transaction for purposes of satisfying potential indemnification claims asserted by M2 for breaches of PTII's warranties in the Purchase Agreement. Subject to limited exceptions, PTII's liability to M2 for indemnification for breaches of PTII's warranties is subject to a survival period of twelve months after the closing date and is limited to the Retention Amount. The Purchase Agreement contains customary warranties and covenants for a transaction of this nature. The Company has also provided M2 with a guarantee of the performance of PTII's obligations under the Purchase Agreement.