Acquisitions (Schedule Of Unaudited Pro Forma Results) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Acquisitions [Abstract]
Revenue	$ 74,589	$ 165,625	$ 139,898
Net loss allocable to common shareholders	$ (1,301)	$ (5,111)	$ (4,579)
Net loss per share - basic and diluted	$ (0.05)	$ (0.19)	$ (0.19)

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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- Definition

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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- Details

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