Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Outstanding Options (Details 2)

v3.3.1.900
EQUITY AND EARNINGS PER SHARE - Outstanding Options (Details 2) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
May. 07, 2015
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   5,421,561
Options exercisable (in shares)   4,723,210
Ending Balance (in dollars per share)   $ 2.85
Issued Prior to 2011    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   144,661
Ending Balance (in dollars per share)   $ 13.18
Intrinsic value   $ 0.0
Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   296,079
Stock Option | Various    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   3,333
Options exercisable (in shares)   0
Ending Balance (in dollars per share)   $ 0.00
Intrinsic value   $ 0.0
Stock Option | 2002 - 2007    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   587,277
Options exercisable (in shares)   144,661
Fair value at date of grant   $ 6.4
Stock Option | Mar-11    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   311,853
Options exercisable (in shares)   206,881
Ending Balance (in dollars per share)   $ 1.00
Fair value at date of grant   $ 7.0
Intrinsic value   $ 0.6
Stock Option | Sep-11    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   524,212
Options exercisable (in shares)   376,268
Ending Balance (in dollars per share)   $ 1.00
Fair value at date of grant   $ 5.6
Intrinsic value   $ 1.2
Stock Option | Apr-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   348,352
Options exercisable (in shares)   279,452
Ending Balance (in dollars per share)   $ 1.00
Fair value at date of grant   $ 5.6
Intrinsic value   $ 0.9
Stock Option | May-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   396,316
Options exercisable (in shares)   316,871
Ending Balance (in dollars per share)   $ 1.00
Fair value at date of grant   $ 7.6
Intrinsic value   $ 1.0
Stock Option | Jul-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   437,991
Options exercisable (in shares)   353,674
Ending Balance (in dollars per share)   $ 1.00
Fair value at date of grant   $ 8.3
Intrinsic value   $ 1.1
Stock Option | Jan-13    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   958,331
Options exercisable (in shares)   872,528
Ending Balance (in dollars per share)   $ 2.32
Fair value at date of grant   $ 18.0
Intrinsic value   $ 1.5
Stock Option | Feb-13    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   383,331
Options exercisable (in shares)   349,011
Ending Balance (in dollars per share)   $ 2.95
Fair value at date of grant   $ 8.4
Intrinsic value   $ 0.4
Stock Option | Jun-13    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   670,829
Options exercisable (in shares)   610,770
Ending Balance (in dollars per share)   $ 3.23
Fair value at date of grant   $ 3.8
Intrinsic value   $ 0.5
Stock Option | Nov-13    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   965,847
Options exercisable (in shares)   804,873
Ending Balance (in dollars per share)   $ 3.57
Fair value at date of grant   $ 6.0
Intrinsic value   $ 0.4
Stock Option | Aug-14    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   765,416
Options exercisable (in shares)   408,221
Ending Balance (in dollars per share)   $ 4.01
Fair value at date of grant   $ 1.7
Intrinsic value   $ 0.1
Stock Option | Prior to 2008    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (173,853)
Ending Balance (in dollars per share)   $ 14.09
Stock Option | Oct-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (15,972)
Ending Balance (in dollars per share)   $ 1.48
Stock Option | Sep-13    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (51,306)
Ending Balance (in dollars per share)   $ 1.67
Stock Option | 2014    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (216,186)
Ending Balance (in dollars per share)   $ 1.46
Stock Option | 2015    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (202,446)
Ending Balance (in dollars per share)   $ 1.00
Stock Option | 2002-2005    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Options, (in shares)   (271,764)
Stock Option    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 178,740  
Stock Option | Mar-11    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 24,354  
Stock Option | Sep-11    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 92,963  
Stock Option | Apr-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 32,105  
Stock Option | May-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 12,987  
Stock Option | Jul-12    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of stock options - equitable adjustment (in shares) 16,331