Significant Accounting Policies Property, Plant and Equipment (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2016 | |
| Building [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful Life | 30 years |
| Machinery and Equipment [Member] | Minimum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful Life | 3 years |
| Machinery and Equipment [Member] | Maximum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Useful Life | 10 years |