|
Segment Information (Schedule Of Revenue From Unaffiliated Customers By Geographic Area) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2013
segment
|
Mar. 31, 2012
segment
|
|
| Segment Reporting Information [Line Items] | ||
| Number of reportable segments | 1 | 1 |
| Revenue from unaffiliated customers | $ 102,079 | $ 77,920 |
|
United States [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Revenue from unaffiliated customers | 57,153 | 45,909 |
|
Germany [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Revenue from unaffiliated customers | 11,911 | 7,423 |
|
Other Europe [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Revenue from unaffiliated customers | 16,669 | 13,288 |
|
Asia Pacific [Member]
|
||
| Segment Reporting Information [Line Items] | ||
| Revenue from unaffiliated customers | $ 16,346 | $ 11,300 |