Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Share-based Compensation (Details)

v3.3.0.814
Summary of Significant Accounting Policies - Share-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation $ 396 $ 683 $ 1,367 $ 2,108
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-vested stock options unrecognized compensation expense $ 3,956   $ 3,956  
Non-vested stock options unrecognized compensation expense, weighted-average period of recognition     2 years 11 months 1 day