Restructuring and Exit Costs - Additional Information (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2015 |
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Other, net | $ 2,000 | $ 0 | $ 1,100,000 | $ 7,100,000 |
| Accrued Liabilities | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring reserve | $ 100,000 | |||
| Southern | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Other, net | 600,000 | |||
| Northeast | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Other, net | 100,000 | |||
| Corporate and Other | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Other, net | $ 400,000 | |||