Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Schedule of Stock Options Activity (Details)

v3.6.0.2
Share-Based Compensation - Schedule of Stock Options Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Outstanding at January 1, 2016, Number of Options 27,000    
Outstanding at January 1, 2016, Weighted Average Exercise Price $ 39.88    
Outstanding at January 1, 2016, Weighted Average Remaining Contractual Term 0 days 3 months 6 days  
Outstanding at January 1, 2016, Aggregate Intrinsic Value $ 0    
Granted, Number of Options 0 0 0
Granted, Weighted Average Exercise Price $ 0    
Exercised, Number of Options (2,000)    
Exercised, Weighted Average Exercise Price $ 33.39    
Forfeited or Expired, Number of Options (25,000)    
Forfeited or Expired, Weighted Average Exercise Price $ 40.27    
Outstanding at December 31, 2016, Number of Options 0 27,000  
Outstanding at December 31, 2016, Weighted Average Exercise Price $ 0.00 $ 39.88  
Outstanding at December 31, 2016, Weighted Average Remaining Contractual Term 0 days 3 months 6 days  
Outstanding at December 31, 2016, Aggregate Intrinsic Value $ 0 $ 0  
Exercisable at December 31, 2016, Number of Options 0    
Exercisable at December 31, 2016, Weighted Average Exercise Price $ 0.00    
Exercisable at December 31, 2016, Weighted Average Remaining Contractual Term 0 days    
Exercisable at December 31, 2016, Aggregate Intrinsic Value $ 0