STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2018

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

Components of the stock-based compensation programs recorded as expense

The following table summarizes the components of the Company’s stock-based compensation programs recorded as expense ($ in thousands):

Years ended December 31,	2018			2017			2016
Time lapse restricted stock:
Pre-tax compensation expense	$	13,726		$	12,399		$	12,415
Tax benefit		(3,486	)		(4,799	)		(4,805	)
Restricted stock expense, net of tax	$	10,240		$	7,600		$	7,610

Summarized information on unvested restricted stock units outstanding

The following table summarizes information on unvested restricted stock units outstanding as of December 31, 2018, 2017 and 2016:

	Number of Shares (in thousands)			Weighted-Average Grant-Date Fair Value
Unvested Restricted Stock Grants
Unvested as of December 31, 2015		4,126		$	11.47
Forfeited		(171	)		13.03
Vested		(1,318	)		9.66
Granted		755			17.63
Unvested as of December 31, 2016		3,392			13.47
Forfeited		(51	)		14.92
Vested		(1,018	)		11.47
Granted		703			22.97
Unvested as of December 31, 2017		3,026			16.33
Forfeited		(35	)		19.05
Vested		(910	)		13.24
Granted		643			32.25
Unvested as of December 31, 2018		2,724		$	21.08