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Share-Based Compensation (Summary of Vested and Nonvested Awards) (Details) - 2011 Equity Incentive Plan [Member] $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) $ / shares shares
Stock Option [Member] |
Vested |
Number of units outstanding, Vested (in shares) | shares | 584,103
Weighted-average fair value per unit, Vested (in dollars per share) | $ / shares | $ 4.88
Total grant-date fair value of the plan, Vested | $ 2,852
Weighted-average accumulated percentage of service, Vested (as a percent) | 100.00%
Stock-based compensation recognized in Additional paid-in capital, vested | $ 2,852
Non-Vested |
Number of units outstanding, Non-vested (in shares) | shares | 192,372
Weighted-average fair market value per unit, Non-vested (in dollars per share) | $ / shares | $ 3.18
Total grant-date fair value of the plan, Non-vested | $ 612
Weighted-average accumulated percentage of service, Non-vested (as a percent) | 81.40%
Stock-based compensation recognized in Additional paid-in capital, Non-vested | $ 498
Compensation expense not yet recognized, Non-vested | $ 114
Total |
Number of units outstanding, Total (in shares) | shares | 776,475
Weighted-average fair market value per unit, Total (in dollars per share) | $ / shares | $ 4.46
Total grant-date fair value of the plan, Total | $ 3,464
Weighted-average accumulated percentage of service, Total (as a percent) | 96.70%
Stock-based compensation recognized in Additional paid-in capital | $ 3,350
Compensation expense not yet recognized, Total | $ 114
Restricted Share Units [Member] |
Total |
Number of units outstanding, Total (in shares) | shares | 1,780,997
Weighted-average fair market value per unit, Total (in dollars per share) | $ / shares | $ 6.07
Total grant-date fair value of the plan, Total | $ 10,807
Weighted-average accumulated percentage of service, Total (as a percent) | 49.67%
Stock-based compensation recognized in Additional paid-in capital | $ 5,368
Compensation expense not yet recognized, Total | $ 5,439

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