Acquisitions (Pro Forma Results) (Details) (Cloverleaf Communications, Inc. [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2010
Cloverleaf Communications, Inc. [Member]
Business Acquisition [Line Items]
Net revenue	$ 252,571
Net loss	$ (13,237)
Basic and diluted net loss per share	$ (0.25)

Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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