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EMPLOYEE STOCK COMPENSATION (Tables)
 3 Months Ended
Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Unrecognized Share-Based Compensation Expense
The following table presents unrecognized share-based compensation expense as of March 31, 2017:
 
March 31, 2017
 
Unrecognized
Expense
 
Average
Remaining Expected
Recognition
Period
 
($ in thousands)
Stock option awards
$
1,281

 
3.5 years
Restricted stock awards and restricted stock units
6,925

 
2.9 years
Total
$
8,206

 
3.0 years
Option Activity
The following table represents stock option activity as of and for the three months ended March 31, 2017:
 
Three Months Ended March 31, 2017
 
Number of
Shares
 
Weighted-
Average
Exercise
Price per
Share
 
Weighted-
Average
Remaining
Contract
Term
 
Aggregated
Intrinsic
Value
(In thousands)
Outstanding at beginning of period
968,591

 
$
13.95

 
6.4 years
 
$
3,336

Exercised
(91,000
)
 
$
12.06

 
4.8 years
 


Outstanding at end of period
877,591

 
$
14.14

 
6.5 years
 
$
5,755

Exercisable at end of period
364,253

 
$
12.84

 
6.5 years
 
$
2,862
Nonvested Share
The following table represents changes in unvested stock options as of and for the three months ended March 31, 2017:
 
Three Months Ended
 
March 31, 2017
 
Number of
Shares
 
Weighted-
Average
Exercise
Price per
Share
Outstanding at beginning of period
518,936

 
$
15.04

Vested
(5,598
)
 
$
13.19

Outstanding at end of period
513,338

 
$
15.07
Restricted Stock and Restricted Stock Units Activity
The following table represents unvested restricted stock awards and restricted stock units activity as of and for the three months ended March 31, 2017:
 
Three Months Ended
 
March 31, 2017
 
Number of
Shares
 
Weighted Average
Grant Date
Fair Value
Per Share
Outstanding at beginning of period
1,417,144

 
$
16.16

Vested
(302,842
)
 
$
18.95

Forfeited
(57,881
)
 
$
14.85

Outstanding at end of period
1,056,421

 
$
15.43
Summary of all Outstanding SARs
The following table represents SARs activity as of and for the three months ended March 31, 2017:
 
Three Months Ended March 31, 2017
 
Number of
Shares
 
Weighted-
Average
Exercise
Price per
Share
 
Weighted-
Average
Remaining
Contract
Term
 
Aggregated
Intrinsic
Value
(In thousands)
Outstanding at beginning of period
1,559,047

 
$
11.60

 
5.6 years
 
$
8,961

Forfeited
(35
)
 
$
10.09

 
5.6 years
 


Outstanding at end of period
1,559,012

 
$
11.60

 
5.4 years
 
$
14,183

Exercisable at end of period
1,559,012

 
$
11.60

 
5.4 years
 
$
14,183

The following table represents changes in unvested SARs as of and for the three months ended March 31, 2017:
 
Three Months Ended
 
March 31, 2017
 
Number of
Shares
 
Weighted-
Average
Exercise
Price per
Share
Outstanding at beginning of period
8,069

 
$
10.09

Vested
(8,034
)
 
$
10.09

Forfeited
(35
)
 
$
10.09

Outstanding at end of period
—

 
$
10.09