Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE EQUITY AND EARNINGS PER SHARE - Changes in Outstanding Options (Details)

v3.6.0.2
EQUITY AND EARNINGS PER SHARE EQUITY AND EARNINGS PER SHARE - Changes in Outstanding Options (Details)
 12 Months Ended
Dec. 31, 2016
$ / shares
shares
Number of Options  
Beginning Balance (in shares) | shares 5,421,561
Granted (in shares) | shares 333
Exercised (in shares) | shares (266,657)
Expired (in shares) | shares (28,331)
Ending Balance (in shares) | shares 5,126,906
Weighted Average Strike Price  
Beginning Balance (in dollars per share) | $ / shares $ 2.85
Granted (in dollars per share) | $ / shares 3.78
Exercised (in dollars per share) | $ / shares 3.01
Expired (in dollars per share) | $ / shares 13.38
Ending Balance (in dollars per share) | $ / shares $ 2.79
Weighted Average Life Remaining  
Exercisable at December 31, 2016, Number of Options (in shares) | shares 5,075,878
Exercisable at December 31, 2016, Weighted Average Strike Price (in shares) | $ / shares $ 2.78
Weighted Average Life Remaining (in years) 5 years 10 months 29 days
Weighted Average Life Remaining (in years) 5 years 10 months 18 days