v2.4.0.8
Employee Incentive Plans (2007 Stock Incentive Plan, ROI Summary) (Details) (2007 Stock Incentive Plan (Shares))
6 Months Ended
Jun. 30, 2014
2007 Stock Incentive Plan (Shares)
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance 11,647,117
Shares Granted   
Shares Forfeited (143,185)
Shares Distributed (2,434,794) [1]
Ending Balance 9,069,138
[1] Shares cumulatively distributed under the 2007 Stock Incentive Plan include 16,238 shares from Treasury representing shares acquired at the IPO to satisfy obligations under the 2007 ROI Unit Stock Plan.