Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives for Significant Property and Equipment Categories (Detail)	12 Months Ended
	Dec. 31, 2012
Minimum [Member] | Vehicles - excluding rail haul cars [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Minimum [Member] | Vehicles - rail haul cars [Member]
Significant Accounting Policies [Line Items]
Useful Life	10 years
Minimum [Member] | Machinery and equipment - including containers [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Minimum [Member] | Buildings and improvements - excluding waste - to - energy facilities [Member]
Significant Accounting Policies [Line Items]
Useful Life	5 years
Minimum [Member] | Furniture, fixtures and office equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	3 years
Maximum [Member] | Vehicles - excluding rail haul cars [Member]
Significant Accounting Policies [Line Items]
Useful Life	10 years
Maximum [Member] | Vehicles - rail haul cars [Member]
Significant Accounting Policies [Line Items]
Useful Life	20 years
Maximum [Member] | Machinery and equipment - including containers [Member]
Significant Accounting Policies [Line Items]
Useful Life	30 years
Maximum [Member] | Buildings and improvements - excluding waste - to - energy facilities [Member]
Significant Accounting Policies [Line Items]
Useful Life	40 years
Maximum [Member] | Waste-to-energy facilities and related equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	50 years
Maximum [Member] | Furniture, fixtures and office equipment [Member]
Significant Accounting Policies [Line Items]
Useful Life	10 years