|
Fair Value Measurements (Details Textual) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Fair Value Disclosures [Abstract] | ||
| Deferred Acquisition Consideration, Fixed Payments | $ 26,998 | $ 33,141 |
| Business Acquisition, Contingent Consideration Potential Cash Payment, Total | $ 200,804 | $ 205,368 |