Acquisitions (Details 1) (USD $)	12 Months Ended
Dec. 31, 2010
Acquisition supplemental pro forma
Total revenues	$ 751,175
Net income	$ 19,373
Diluted net income per common share:
Income from continuing operations	$ 0.58
Weighted average common shares	33,365

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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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.

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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.

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The weighted average number of shares or units and dilutive common stock or unit equivalents outstanding in the calculation of proforma diluted earnings per share (earnings per unit), which is commonly presented in initial public offerings based on the terms of the offering.

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No definition available.

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