Earnings Per Share Earnings Per Share - Anti-dilutive Options (Details) - shares shares in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Anti-dilutive stock options (in shares) | 9 | 13 | 11 |
| Anti-dilutive stock options | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Anti-dilutive stock options (in shares) | 0 | 13 | 11 |
| Anti-dilutive restricted stock units | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Anti-dilutive stock options (in shares) | 9 | 0 | 0 |