STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of stock option awards is estimated on the date of grant using a binomial option-pricing model that uses the assumptions noted in the following table:

Valuation Assumptions	2015			2014			2013
Risk-free interest rate		2.14	%		2.73	%		2.02	%
Expected volatility		72.5	%		72.0	%		75.3	%
Expected dividend yield		0.00	%		0.00	%		0.00	%
Expected term		5 yrs.			5 yrs.			5 yrs.

Restricted Stock

Schedule of Share-based Compensation, Stock Options, Activity

A summary of all restricted stock activity during 2015 is as follows:

	Number of Shares		Weighted Average Grant Date Fair Value
Restricted Stock Outstanding at December 31, 2014		1,288,769	$	11.70
Granted		667,126	$	14.84
Vested		(396,389)	$	10.84
Forfeited		(21,390)	$	13.44
Restricted Stock Outstanding at December 31, 2015		1,538,116	$	13.25

Stock Option

Schedule of Share-based Compensation, Stock Options, Activity

A summary of all stock option activity during 2015 is as follows:

	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life		Aggregate Intrinsic Value ($ in millions)
Options Outstanding at December 31, 2014		1,909,456	$	11.79		5.5	$	3.3
Granted		190,810	$	14.16
Exercised		(186,622)	$	10.78
Forfeited		(9,656)	$	12.16
Expired		(83,032)	$	23.55
Options Outstanding at December 31, 2015		1,820,956	$	11.61		5.2	$	2.3
Options Exercisable at December 31, 2015		1,398,229	$	11.25		4.3	$	2.1