Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Goodwill (Details)

v2.4.0.8
Goodwill and Intangible Assets - Goodwill (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Goodwill [Roll Forward]  
Beginning balance $ 48,968,390
Acquisitions 6,010,177
Foreign Currency Translation and Other Adjustments 636,570
Ending balance 55,615,137
U.S Federal [Member]
 
Goodwill [Roll Forward]  
Beginning balance 3,374,967
Acquisitions 0
Foreign Currency Translation and Other Adjustments 0
Ending balance 3,374,967
Central U.S Region [Member]
 
Goodwill [Roll Forward]  
Beginning balance 1,972,415
Acquisitions 921,128
Foreign Currency Translation and Other Adjustments 0
Ending balance 2,893,543
Other U.S Regions [Member]
 
Goodwill [Roll Forward]  
Beginning balance 21,736,140
Acquisitions 0
Foreign Currency Translation and Other Adjustments 0
Ending balance 21,736,140
Canada [Member]
 
Goodwill [Roll Forward]  
Beginning balance 3,827,112
Acquisitions 0
Foreign Currency Translation and Other Adjustments 429,958
Ending balance 4,257,070
All Other [Member]
 
Goodwill [Roll Forward]  
Beginning balance 18,057,756
Acquisitions 5,089,049
Foreign Currency Translation and Other Adjustments 206,612
Ending balance $ 23,353,417