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 |