Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Outstanding Options by Strike Price (Details)

v3.8.0.1
EQUITY AND EARNINGS PER SHARE - Outstanding Options by Strike Price (Details) - $ / shares
Dec. 31, 2017
Dec. 31, 2016
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 2.55 $ 2.79
Total Unexercised Inception to Date (in shares) 5,010,576 5,126,906
Stock Option | Mar-11    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 311,853  
Stock Option | Sep-11    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 524,212  
Stock Option | Apr-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 348,352  
Stock Option | May-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 396,316  
Stock Option | Jul-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 437,991  
Stock Option | Jan-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 2.32  
Total Unexercised Inception to Date (in shares) 958,331  
Stock Option | Feb-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 2.95  
Total Unexercised Inception to Date (in shares) 383,331  
Stock Option | Jun-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 3.23  
Total Unexercised Inception to Date (in shares) 670,829  
Stock Option | Nov-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 3.57  
Total Unexercised Inception to Date (in shares) 965,847  
Stock Option | Aug-14    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 4.01  
Total Unexercised Inception to Date (in shares) 765,416  
Employees of Manager | Stock Option    
Option Indexed to Issuer's Equity [Line Items]    
Total Unexercised Inception to Date (in shares) 1,152,495  
Employees of Manager | Stock Option | Mar-11    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 62,370  
Employees of Manager | Stock Option | Sep-11    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 104,843  
Employees of Manager | Stock Option | Apr-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 69,670  
Employees of Manager | Stock Option | May-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 79,263  
Employees of Manager | Stock Option | Jul-12    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 1.00  
Total Unexercised Inception to Date (in shares) 87,598  
Employees of Manager | Stock Option | Jan-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 2.32  
Total Unexercised Inception to Date (in shares) 191,666  
Employees of Manager | Stock Option | Feb-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 2.95  
Total Unexercised Inception to Date (in shares) 76,666  
Employees of Manager | Stock Option | Jun-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 3.23  
Total Unexercised Inception to Date (in shares) 134,166  
Employees of Manager | Stock Option | Nov-13    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 3.57  
Total Unexercised Inception to Date (in shares) 193,170  
Employees of Manager | Stock Option | Aug-14    
Option Indexed to Issuer's Equity [Line Items]    
Strike Price (in dollars per share) $ 4.01  
Total Unexercised Inception to Date (in shares) 153,083