STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Options activity outstanding of stock option plan

(in thousands except per share data)	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at December 31, 2012		1		$	3.68		0.08	$	17
Exercised		(1	)		3.68
Outstanding at December 31, 2013		—			—		—		—
Exercised		—			—
Outstanding at December 31, 2014		—		$	—		—	$	—
Exercised		—			—
Outstanding at December 31, 2015		—		$	—		—	$	—
Exercisable at December 31, 2015		—		$	—		—	$	—

Components of the stock-based compensation programs recorded as expense

Years ended December 31,	2015			2014			2013
Time Lapse Restricted Stock:
Pre-tax compensation expense	$	12,110		$	10,579		$	10,427
Tax benefit		(4,687	)		(4,094	)		(4,014	)
Restricted stock expense, net of tax	$	7,423		$	6,485		$	6,413

Summarized information on unvested restricted stock units outstanding

	Number of Shares (in thousands)			Weighted-Average Grant-Date Fair Value
Unvested Restricted Stock Grants
Unvested as of December 31, 2012		4,114		$	10.94
Forfeited		(84	)		11.68
Vested		(1,045	)		8.89
Granted		695			16.19
Unvested as of December 31, 2013		3,680			12.50
Forfeited		(178	)		14.27
Vested		(1,018	)		10.31
Granted		616			19.16
Unvested as of December 31, 2014		3,100			14.45
Forfeited		(85	)		15.71
Vested		(946	)		12.04
Granted		682			22.43
Unvested as of December 31, 2015		2,751		$	17.21