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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 31, 2018
Share-based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
A summary of all restricted stock activity during 2018 is as follows:
 
Number of
Shares
 
Weighted
Average
Grant Date
Fair Value
Restricted Stock Outstanding at December 31, 2017
1,845,627

 
$
17.11

Granted
593,705

 
24.79

Vested
(633,645
)
 
16.49

Forfeited
(310,123
)
 
18.50

Restricted Stock Outstanding at December 31, 2018
1,495,564

 
$
20.77
Schedule of Share-based Compensation, Stock Options, Activity
A summary of all stock option activity during 2018 is as follows:
 
Number of
Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Life
 
Aggregate
Intrinsic
Value ($ in
millions)
Options Outstanding at December 31, 2017
753,038

 
$
10.96

 
4.4
 
$
8.1

Exercised
(102,645
)
 
$
9.37

 
 
 
$
1.5

Forfeited
(3,000
)
 
$
13.74

 
 
 
 
Expired
(13,800
)
 
$
8.57

 
 
 
 
Options Outstanding at December 31, 2018
633,593

 
$
11.26

 
3.8
 
$
1.3

 
 
 
 
 
 
 
 
Options Exercisable at December 31, 2018
633,593

 
$
11.26

 
3.8
 
$
1.3