Stockholders' Equity - Liability Awards (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Apr. 14, 2016 |
Feb. 17, 2016 |
Dec. 31, 2016 |
|
| SAR | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Beginning balance (in shares) | 86,261 | ||
| Exercised (in shares) | (19,543) | ||
| Forfeited (in shares) | (4,183) | ||
| Granted (in shares) | 14,643 | 14,643 | |
| Ending balance (in shares) | 77,178 | ||
| PSU | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Beginning balance (in shares) | 0 | ||
| Exercised (in shares) | 0 | ||
| Forfeited (in shares) | (301) | ||
| Granted (in shares) | 5,727 | 5,727 | |
| Ending balance (in shares) | 5,426 | ||
| RSU | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Beginning balance (in shares) | 0 | ||
| Exercised (in shares) | 0 | ||
| Forfeited (in shares) | (195) | ||
| Granted (in shares) | 2,563 | 3,661 | 6,224 |
| Ending balance (in shares) | 6,029 |