Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Details)

v3.5.0.2
Equity Incentive Plan (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized         10,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 13,000,000   13,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     2,019,261 1,170,803  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 7.56 $ 10.48  
Allocated Share-based Compensation Expense $ 3,468 $ 1,748 $ 11,223 $ 7,367  
Director [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 81,739 55,229      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 8.43 $ 10.41      
Key Employees [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     1,937,522 1,115,574  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 7.52 $ 10.49  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price $ 8.53   $ 8.53