STOCK INCENTIVE PLANS (Tables)

9 Months Ended

Sep. 30, 2018

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

Schedule of Share-based Compensation, Restricted Stock Units Activity

The following table details our issuance of restricted stock units and the aggregate weighted average grant date fair values under these plans for the years indicated.

TABLE 11.1

	Nine Months Ended September 30,
(dollars in thousands)	2018		2017
Restricted stock units	958,720		713,998
Weighted average grant date fair values	$	12,665	$	10,474

Summary of Activity Relating to Restricted Stock Units

The following table summarizes the activity relating to restricted stock units during the periods indicated:

TABLE 11.2

	Nine Months Ended September 30,
	2018				2017
	Units		Weighted Average Grant Price per Share		Units		Weighted Average Grant Price per Share
Unvested units outstanding at beginning of period	1,975,862		$	13.64	1,836,363		$	12.97
Granted	958,720		13.21		713,998		14.67
Vested	(257,712	)	13.18		(594,560	)	12.84
Forfeited/expired	(209,438	)	13.36		(27,109	)	13.94
Dividend reinvestment	60,938		13.72		46,969		13.79
Unvested units outstanding at end of period	2,528,370		13.55		1,975,661		13.63

Schedule of Certain Information Related to Restricted Stock Units

The following table provides certain information related to restricted stock units:

TABLE 11.3

(in thousands)	Nine Months Ended September 30,
	2018		2017
Stock-based compensation expense	$	7,310	$	6,088
Tax benefit related to stock-based compensation expense	1,535		2,131
Fair value of units vested	3,472		8,046

Components of Restricted Stock Units

The components of the restricted stock units as of September 30, 2018 are as follows:

TABLE 11.4

(dollars in thousands)	Service- Based Units		Performance- Based Units		Total
Unvested restricted stock units	1,455,391		1,072,979		2,528,370
Unrecognized compensation expense	$	10,770	$	5,514	$	16,284
Intrinsic value	$	18,513	$	13,648	$	32,161
Weighted average remaining life (in years)	2.09		1.19		1.71

Summary of Activity Relating to Stock Options

The following table summarizes the activity relating to stock options during the periods indicated:

TABLE 11.5

	Nine Months Ended September 30,
	2018				2017
	Shares		Weighted Average Exercise Price per  Share		Shares		Weighted Average Exercise Price per  Share
Options outstanding at beginning of period	722,650		$	7.96	892,532		$	8.95
Assumed from acquisitions	—		—		207,645		8.92
Exercised	(214,781	)	7.91		(163,455	)	9.41
Forfeited/expired	(4,834	)	11.65		(56,687	)	11.16
Options outstanding and exercisable at end of period	503,035		7.97		880,035		8.72