EMPLOYEE COMPENSATION PLANS (TABLES)

12 Months Ended

Dec. 31, 2015

EMPLOYEE COMPENSATION PLANS [Abstract]

Summary of non-vested RSU's and performance-based RSU's

		Weighted
		Average
		Grant Date
	Shares	Fair Value
Unvested as of December 31, 2014	1,823,078	$	23.02
Granted	768,590	$	26.52
Vested	(531,789)	$	22.71
Cancellations/expirations	(504,413)	$	21.79
Unvested as of December 31, 2015	1,555,466	$	25.25

Schedule of stock option assumptions

	Year Ended December 31,
	2011
Risk-free interest rate			2.1	%
Expected life in years	1.3	-	2.7
Expected volatility			54.4	%
Dividend yield			—	%
Weighted-average volatility			54.4	%

Summary of stock option activity

				Weighted
		Weighted		Average	Aggregate
		Average		Remaining	Intrinsic
		Exercise		Contract	Value
	Shares	Price		Term in Years	(000’s)
Outstanding as of December 31, 2014	1,151,999	$	13.67
Exercises	(894,168)	$	11.59		$	13,894
Post-vest cancellations/expirations	(16,667)	$	17.31
Outstanding as of December 31, 2015	241,164	$	21.11	3.94	$	1,641
Vested and exercisable as of December 31, 2015	107,831	$	25.80	1.54	$	228