|
Summary of Significant Accounting Policies (Details 1) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Intangible Assets [Line Items] | ||
| Finite and Indefinite-Lived Intangible Assets, Gross, Total | $ 168,487 | $ 169,313 |
| Total Accumulated Amortization | (53,991) | (51,749) |
|
Tradename (indefinite life) [Member]
|
||
| Intangible Assets [Line Items] | ||
| Gross amount, Tradename (indefinite life) | 25,038 | 25,061 |
|
Customer Relationships [Member]
|
||
| Intangible Assets [Line Items] | ||
| Gross amount | 96,357 | 96,575 |
| Accumulated Amortization | (23,522) | (21,928) |
|
Proven technology and patents [Member]
|
||
| Intangible Assets [Line Items] | ||
| Gross amount | 42,210 | 42,960 |
| Accumulated Amortization | (28,491) | (28,014) |
|
Tradename (finite life) [Member]
|
||
| Intangible Assets [Line Items] | ||
| Gross amount | 4,137 | 3,972 |
| Accumulated Amortization | (1,469) | (1,345) |
|
Other Intangible Assets [Member]
|
||
| Intangible Assets [Line Items] | ||
| Gross amount | 745 | 745 |
| Accumulated Amortization | $ (509) | $ (462) |