Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Outstanding Options Summary (Details)

v3.6.0.2
EQUITY AND EARNINGS PER SHARE - Outstanding Options Summary (Details) - shares
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 5,126,906 5,421,561
Issued Prior to 2011    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 116,330 144,661
Issued in 2011 and thereafter    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 5,010,576 5,276,900
Manager    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 5,120,272 5,125,482
Manager | Issued Prior to 2011    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 110,029 115,239
Manager | Issued in 2011 and thereafter    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 5,010,243 5,010,243
Management employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 6,301 296,079
Management employees | Issued Prior to 2011    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 6,301 29,422
Management employees | Issued in 2011 and thereafter    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 0 266,657
Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 333 0
Directors | Issued Prior to 2011    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 0 0
Directors | Issued in 2011 and thereafter    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding (in shares) 333 0