Other Financial Statement Information - Property, Plant and Equipment - Net (Detail) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment - Gross | $ 249,490 | $ 224,939 |
| Less accumulated depreciation | 142,163 | 132,974 |
| Property and equipment - Net | 107,327 | 91,965 |
| Land and Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment - Gross | 12,903 | 12,260 |
| Buildings and Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment - Gross | 73,739 | 71,711 |
| Machinery and Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment - Gross | 158,980 | 137,599 |
| Construction in Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment - Gross | $ 3,868 | $ 3,369 |