Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule of Stock-based Awards Granted) (Details)

v3.7.0.1
Stock-Based Compensation (Schedule of Stock-based Awards Granted) (Details) - 2007 Stock Incentive Plan - shares
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 10,000 30,000 135,000 30,000
Restricted stock awards and restricted stock units        
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 150,000 120,000 212,500 120,000
Performance stock units        
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 0 0 166,149 0