|
Financial Instruments and Fair Value Measurement (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Business Acquisition [Line Items] | ||
| Net increase during period | $ 26.8 | |
| Amounts acquired or issued | 0 | 0 |
| Nogra | ||
| Business Acquisition [Line Items] | ||
| Potential milestone payment | 1,865.0 | |
| Maximum | Gloucester Pharmaceuticals, Inc. | ||
| Business Acquisition [Line Items] | ||
| Potential milestone payment | 120.0 | |
| Maximum | Avila | ||
| Business Acquisition [Line Items] | ||
| Potential milestone payment | $ 555.0 | |