Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation and Cash-Based Incentive Compensation - Outstanding Restricted Shares Issued to Non-employee Directors (Details)

v3.2.0.727
Share-Based Compensation and Cash-Based Incentive Compensation - Outstanding Restricted Shares Issued to Non-employee Directors (Details) - Restricted Shares - shares
Jun. 30, 2015
Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 78,230 43,210
2016    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 34,265  
2017    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 25,115  
2018    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Awards expected to vest by period 18,850