STOCK-BASED COMPENSATION (Details 3)	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares) | shares	3,407,300
Options outstanding (in shares) | shares	5,734,740
Under $16
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise price, minimum, (in dollars per share)	$ 0.00
Range of exercise price, maximum, (in dollars per share)	$ 16.00
Options exercisable (in shares) | shares	897,129
Weighted average exercise price, exercisable (in dollars per share)	$ 15.06
Options outstanding (in shares) | shares	2,518,379
Weighted average exercise price, outstanding (in dollars per share)	$ 13.82
$16-$22
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise price, minimum, (in dollars per share)	16.00
Range of exercise price, maximum, (in dollars per share)	$ 22.00
Options exercisable (in shares) | shares	1,286,916
Weighted average exercise price, exercisable (in dollars per share)	$ 20.25
Options outstanding (in shares) | shares	1,286,916
Weighted average exercise price, outstanding (in dollars per share)	$ 20.25
Over $22
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise price, minimum, (in dollars per share)	$ 22.00
Options exercisable (in shares) | shares	1,223,255
Weighted average exercise price, exercisable (in dollars per share)	$ 24.92
Options outstanding (in shares) | shares	1,929,445
Weighted average exercise price, outstanding (in dollars per share)	$ 25.66