|
Segment Information (Assets by Reportable Segment) (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Assets | $ 985,062 | $ 835,117 |
| Reportable Segment [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 985,062 | |
| Reportable Segment [Member] | Printed Circuit Materials [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 332,712 | |
| Reportable Segment [Member] | High Performance Foams [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 280,585 | |
| Reportable Segment [Member] | Power Electronics Solutions [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | 330,631 | |
| Reportable Segment [Member] | Other [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Assets | $ 41,134 |