Employee Benefit Plans (Long-Term Incentive Plans) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Mar. 25, 2008 |
Dec. 31, 2016 |
|
| Nonemployee director | Restricted stock units | ||
| Long-Term Incentive Plans | ||
| Vesting period | 1 year | |
| Value of awards granted | $ 130 | |
| 2016 long term incentive plan | ||
| Long-Term Incentive Plans | ||
| Number of common shares reserved for issuance (in shares) | 3,000,000 | |
| Term of award under the plan | 10 years | |
| Vesting period | 3 years | |
| Initial Long Term Incentive Plan | ||
| Long-Term Incentive Plans | ||
| Term of award under the plan | 10 years | |
| Number of outstanding awards (in shares) | 41,342 | |
| Nonemployee Plan | ||
| Long-Term Incentive Plans | ||
| Vesting period | 3 years | |
| Number of outstanding awards (in shares) | 15,750 | |
| 2008 LTIP | ||
| Long-Term Incentive Plans | ||
| Number of common shares reserved for issuance (in shares) | 1,238,579 | |
| Term of award under the plan | 10 years |