Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Details)

v3.5.0.2
Net Income (Loss) Per Share (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Dilutive effect of outstanding stock options and shares associated with long-term incentive compensation plans 0   0  
Stock Compensation Plan [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Dilutive effect of outstanding stock options and shares associated with long-term incentive compensation plans   0   0
Shares not included in the computation of diluted earnings per share 896,192 488,371 739,870 488,371
Deferred Stock [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares not included in the computation of diluted earnings per share 159,689 205,010 159,689 205,010