Stock-based Compensation Plans and Awards - Stock Options Activity (Details) shares in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2016
shares
| |
| Number of options outstanding | |
| Outstanding beginning balance | 3,199 |
| Options granted | 253 |
| Options exercised | (50) |
| Options forfeited or canceled | (520) |
| Outstanding ending balance | 2,882 |