v2.4.0.6
Summary of Significant Accounting Policies (Details 1)
12 Months Ended
Dec. 31, 2011
Y
Buildings and improvements [Member]
 
Estimated useful lives of our property and equipment  
Estimated Useful Lives Minimum 7
Estimated Useful Lives Maximum 40
Vehicles [Member]
 
Estimated useful lives of our property and equipment  
Estimated Useful Lives Minimum 5
Estimated Useful Lives Maximum 12
Landfill equipment [Member]
 
Estimated useful lives of our property and equipment  
Estimated Useful Lives Minimum 7
Estimated Useful Lives Maximum 10
Other Equipment [Member]
 
Estimated useful lives of our property and equipment  
Estimated Useful Lives Minimum 3
Estimated Useful Lives Maximum 15
Furniture and Fixtures [Member]
 
Estimated useful lives of our property and equipment  
Estimated Useful Lives Minimum 5
Estimated Useful Lives Maximum 12