Acquisition - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] | ||||
| Net income (loss) attributable to Holdings | $ 49,705 | $ 164,500 | $ 52,921 | $ 164,055 |
| Clean Earth | ||||
| Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] | ||||
| Net sales | 299,737 | 271,488 | 845,212 | 766,929 |
| Operating income | 11,769 | 20,913 | 29,603 | 42,755 |
| Net income (loss) | 46,468 | 9,284 | 38,989 | (1,163) |
| Net income (loss) attributable to Holdings | $ 45,795 | $ 8,033 | $ 37,271 | $ (5,515) |
| Basic net income per share attributable to Holdings | $ 0.68 | $ 0.13 | $ 0.40 | $ (0.15) |
| Fully diluted net income per share attributable to Holdings | $ 0.27 | $ (0.28) | ||