XML 62 R51.htm IDEA: XBRL DOCUMENT v3.7.0.1
Employee Incentive Plans (2007 Stock Incentive Plan, ROI Summary) (Details)
 6 Months Ended
Jun. 30, 2017
shares
2007 Stock Incentive Plan (Shares)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance 7,917,719 [1]
Shares Cancelled (44,791)
Shares Distributed (2,265,002)
Ending Balance 5,607,926
2007 ROI Unit Stock Plan (Shares) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance 4,994
Shares Distributed (1,059)
Ending Balance 3,935
[1] Stock Incentive Plan number of granted shares related to 2016 was adjusted by 5,657 additional shares during the six months ended June 30, 2017.