Change in foreign currency translation during the reporting period.

No definition available.

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- Definition

Gain recognized on the previously held equity interest.

+ References

No definition available.

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- Definition

The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

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-Number 142

-Paragraph 44

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of cash paid to acquire the entity.

+ References

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- Definition

The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 39

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-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.

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-Paragraph 51

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-Publisher FASB

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-Number 141R

-Paragraph 68

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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.

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- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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-Publisher FASB

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-Number 141

-Paragraph 51

-Subparagraph 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.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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- Definition

Percentage of voting equity interests acquired in the business combination.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

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- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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- Definition

This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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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.

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- Definition

This element represents the sum of the: (1) acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer and (2) the acquisition-date fair value of any equity interest in the acquiree held by the acquirer prior to the business combination (for example, a step acquisition).

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-Clause 7

-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.

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- Definition

Carrying amount of the equity interests owned by noncontrolling shareholders, partners, or other equity holders in joint ventures included in the entity's consolidated financial statements.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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Acquisition (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jan. 05, 2012
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		1,940,413
Business Acquisition, Cost Of Acquired Entity, Cash Paid						$ 19,779
Business Acquisition, Cost Of Acquired Entity, Equity Interests Issued and Issuable						10,197
Goodwill, Purchase Accounting Adjustments				524
Acquired Finite-lived Intangible Asset, Amount		102,090
Operating Income (Loss)	1,617		7,413	13,466	14,113
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value		104,118
Developed Technology Rights [Member]
Acquired Finite-lived Intangible Asset, Amount		18,872
Acquired Finite Lived Intangible Assets Weighted Average Useful Life		17 years
Customer Lists [Member]
Acquired Finite-lived Intangible Asset, Amount		51,818
Acquired Finite Lived Intangible Assets Weighted Average Useful Life		15 years
Trademarks [Member]
Acquired Finite-lived Intangible Asset, Amount		31,400
Finite-Lived Intangible Asset, Useful Life		20 years
Psteletronicaltda [Member]
Equity Method Investment, Ownership Percentage		50.00%
Noncontrolling Interest, Ownership Percentage by Parent	74.00%			74.00%
Business Combination, Consideration Transferred, Including Equity Interest In Acquiree Held Prior To Combination		104,118
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		74.00%
Noncontrolling Interest in Joint Ventures	43,749			43,749
Change In Foreign Currency Translation				3,446
Business Acquisition, Cost of Acquired Entity, Purchase Price						44,979
Business Acquisition, Percentage of Voting Interests Acquired						24.00%
Business Combination, Consideration Transferred						29,976
Operating Income (Loss)				1,533
Gain Recognized On Previously Held Equity Interest		65,372
Psteletronicaltda [Member] \| Noncontrolling Interest [Member]
Business Combination, Consideration Transferred, Including Equity Interest In Acquiree Held Prior To Combination		197,824
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		26.00%
Business Combination, Consideration Transferred		44,979
Business Acquisition, Cost Of Acquired Entity, Cash Paid		29,669
Business Acquisition, Cost Of Acquired Entity, Equity Interests Issued and Issuable		15,310
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value		$ 48,727