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Business Acquisitions and Related Transactions - Pro Forma Information (Details) (USD $)
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12 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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| Pro forma: | ||
| Revenue | $ 631,170,565 | $ 783,303,331 |
| Income | $ 18,360,133 | $ 30,776,678 |
| Basic earnings per share | $ 0.41 | $ 0.72 |
| Diluted earnings per share | $ 0.40 | $ 0.69 |
| X | ||||||||||
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- Definition
The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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