Acquisitions (Details)	Jun. 30, 2017 USD ($)
Minimum [Member]
Business Acquisition [Line Items]
Landfill assets increased	$ 4,200,000
Customer relationships increased	1,940,000
Trade names and trademarks decreased	(570,000)
Non-controlling interest increased	(69,000)
Goodwill decreased	(5,640,000)
Purchase price - restricted stock decreased	139,000
Maximum [Member]
Business Acquisition [Line Items]
Landfill assets increased	31,766,000
Customer relationships increased	2,500,000
Trade names and trademarks decreased	210,000
Non-controlling interest increased	140,000
Goodwill decreased	6,014,000
Purchase price - restricted stock decreased	$ 39,284,000