|
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
|
Sep. 30, 2014
|
|
| Share-based Compensation [Abstract] | |
| Unrecognized compensation cost | $ 161.1 |
| Vesting period | 3 years 3 months 18 days |