Segment Reporting (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Total reported revenues by service line
Gross Revenues	$ 431,656	$ 379,141
Less: Intercompany elimination	(55,226)	(47,673)
Total revenues	376,430	331,468
Collection [Member]
Total reported revenues by service line
Gross Revenues	277,088	239,437
Disposal and transfer [Member]
Total reported revenues by service line
Gross Revenues	121,995	109,560
Intermodal recycling and other [Member]
Total reported revenues by service line
Gross Revenues	32,573	30,144
Collection disposal transfer Intermodal recycling and other [Member]
Total reported revenues by service line
Gross Revenues	431,656	379,141
Intercompany elimination [Member]
Total reported revenues by service line
Less: Intercompany elimination	$ (55,226)	$ (47,673)