Restructuring and Divestiture Costs - Corporate - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | $ 4,500,000 | $ 400,000 | $ 41,200,000 | $ 1,100,000 |
| Remaining restructuring payments | 900,000 | 900,000 | ||
| Corporate [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Payment for restructuring costs | 3,200,000 | |||
| Executives [Member] | Corporate [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | 800,000 | 0 | 2,600,000 | 0 |
| Facility Closing [Member] | Corporate [Member] | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Restructuring charges | $ 1,200,000 | $ 0 | $ 3,600,000 | $ 0 |